soundbox新能源汽车

1、miaisoundbox是什么设备

小米AI音箱

2、谁能帮我翻译这段话（超高分奖励）翻译成英语

Loosen the screw on packing and open air cushion film, accessories, remove packing box, fittings, check out instruction, measurement accessories list box, lifting machine installation position determined requirements from wall to 3.5.
Machine moved up pillar, the installation position, the contrast with the size and confirm the machine installation dimensions and pull out the rope, will wear the rope, and installed wire rope lock nut and adjust embedded pulley groove. Lift, and confirm the sliding card in the first place, the installation of insurance of a long pipe fittings, cover, tighten floor slab, screws, marked contrast manual again confirm machine installation position of size, tighten the screws, tighten rope, bottom rope has tightened again. First, the installation of insurance rack gear block to twist thread bottom, have removed split cotters 2cm with spring loaded, insurance rack mount spring after a specified position, insert split cotters,
Confirm pillar, and confirm vertical column on the same plane, not measured in the same plane mast, lateral knock gently with hammer with parallel to the punch, expansion bolts into digs, reoccupy hammer thump expansion nail, expansion bolts, tighten internal bulge in the nut.
Install arm, insert pin shaft, insurance, insurance gear assembly super-molus gear and arm and screw down the screws, occlusive close tray assembly, installation of installation and tray up below, installed in the arm on the tray.
Open hydraulic station packaging, installation, tighten the fixed hydraulic plate, screw hydraulic oil cylinder connections to the short pipeline, hose connector installation, unarmed with wrench screw, charging 8 to 10 liters 46 or 32 anti-wear hydraulic oil circuit connection, hydraulic power, electricity, press down within two columns, handle an "kaka", confirm insurance, press that button up normal lift up 3 to 5 centimeters, leave insurance gear drive insurance leash, open lift two columns inside insurance, press down handle lift machine arm dropped to the lowest positions, commissioning, will get car into the garage, lift machine arm on the tray support to the designated position, automobile chassis according to rise button will rise to arm to 30 centimeters, lifting machine arm on the check whether the tray support to the car chassis braces position, according to the car and the vehicle has confirmed that point in the firm, according to rise up to the top button, according to decline in insurance, insurance grip on the gear, buttons, lift up from insurance and insurance of gear, according to insurance leash drop handle, lift machine arm on the lowest place, remove the lifting machine arm, will leave lifters, car testing. The groove in the pillar with butter, wipe clean the floor, lifting machine, installation debugging lifting machine

3、谁能介绍下Jesse McCartney 谢谢

中文名：杰西·麦卡尼
英文名：Jesse McCartney
出生地：美国纽约
音乐类型：Teen-pop
主要专辑：《天使之心》
电视作品：《夏日乐园》(Summerland)
生 日:1987/4/9 星 座:牡羊座
其他资料头发颜色: 金色
眼睛颜色: 绿色
交友状况: 单身
宠物: 名叫奥立佛的猫
上什麼样的学校: 公立学校
嗜好: 打棒球,滑水,演戏
最喜欢: 滑雪/水
最喜欢的约会方式: 去海边!!!!
当你长大后想做什麼: 当歌手
手足: 有一个哥哥(Timmy)及一个姐姐(Lea)
杰西麦卡尼专辑
1. She's No You 她不是你
2. Beautiful Soul 天使的心
3. Get Your Shine On 你就是主角
4. Take Your Sweet Time 慢慢来
5. Without U 如果没有你
6. Why Don't You Kiss Her 为何不亲吻她
7. That Was Then 错误的曾经
8. Come To Me 奔向我
9. What's Your Name 请问芳名
10. Because You Live 你的存在
11. Why Is Love So Hard To Find 真爱难寻
12. The Stupid Thing 愚蠢的事
Bonus Track超值加收:
13. The Best Day Of My Life(from Cinderella Story O.S.T.) 幸福时刻
14. The Stupid Things(Acoustic Version) 愚蠢的事(不插电版)
获得荣誉：
《我的孩子》亚当一角2001,2002年连续两年获美国电视界最大奖项"艾美奖"提名"最佳年轻演员"
2005年MTV"TRL"年度颁奖礼中夺得"21岁以下最佳来宾"
回答者：grindan - 高级魔法师 七级 1-12 05:50

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Full Name: Jesse McCartney
Age: 16
Nicknames: Jess, Jester, Orange Boy
Date Of Birth: April 09, 1987
Grade: 10th
Astrological Sign: Aries
Birthplace: New York City
Current Residence: Westchester, NY
Hair Color: Blond (natural hair color is brown)
Eye Color: Green
Height: 5'8"
Weight: 120 lbs.
Shoe Size: 9 1/2
Best Feature: Smile
Right/Left Handed: Right Handed
Siblings: 1 younger brother; Timmy-5, 1 younger sister; Lea-11
Pets: Cat named Oliver
Jesse goes to Ardsley High
Favouritez
Fave Color: Orange
Fave Actresses: Joan Cusack, Jennifer Love Hewitt and Cady McClain
Fave Actors: Robin Williams, Will Smith and Jim Carrey
Fave Singers/band: Eve 6, Aerosmith, Sting, James Taylor, BBMak
Fave Music: Hip Hop, Pop, Rock and some R&B.
Fave DS Song: "It Happens Everytime"
Fave Song That isn't theirs: Mario's New Song ?("Braid My Hair")?
Fave Christmas Song: "Silent Night"
Fave Subject: Math and Physical Ecation
Least Fave Subject: History
Best Subject: Spanish
Fave Store: Abercrombie and Fitch, Structure, Tommy, Guess, and Gap
Fave Drink: Pepsi and Root Beer
Fave Food: Steak, California Rolls, Bagels & Cream Cheese.
Fave Fruit: Kiwi and Strawberry
Least Fave Veggie: Brussel Sprouts
Fave Candy: Gummy Bears & Sour Patch Kids
Fave Lollipops: Raspberry tootsie roll pops.
Fav Ice Cream Flavor: Chocolate
Fave Phrase: "Zip It!"
Fave Sports Team: NY Yankees and New York Giants
Fave Sports: Baseball and Football
Fave TV Show: Friends,
Fave Movies: The 6th Sense, Grease and American History X
Fave Type of Books: Biographies
Fave Type Of Clothing: Structure
Fave Cars: Farrari and Lamborghini Diablo
Fave Cartoon: Anything with Elmer Fud and Porky Pig.
Fave person you have ever worked with?: Hayley Mills
Fave Superhero?: God!
Fave Breakfast Meal: Scrambled Eggs and also Pumpkin Pie
Other Facts
Hobbies: Playing baseball, playing his sax, four wheeling, singing and acting
What sports do you play?: Baseball!!
Future Car: BMW M3. Baby Blue or Electric Blue
Commercials: K-Mart (1999), Lowes, Spokesperson for Kids for a Drug FreeAmerica 60 sec radio spot Broadway (and National Broadway Tours): "The King and I" w/ Hayley Mills (as Louis), "A Christmas Carol" as Young Scrooge (Madison Square Garden), A Sunny Delight Commercial (2002), Charmin' Ultra w/ Greg (2002), Auditioning for a pizza & hockey commercial..
Most Prized Possession: baseball glove and phone.
What Do You Look For In A Girl?: Personality and a nice smile.
Name Of His Baseball Team: The Panthers
Boxers or Briefs?: Boxers baby! (go Jess! lolz)
Biggest Like: Snow/Water Skiing
If you have a dramatic scene where you have to cry, how do you get ready for it and do it?: I think of things that made me upset a long time ago.
How did you get started in the business?: My parents used to be in it and they taught me everything they know.
What was your first acting job?: "Oliver," in a local theatre.
First Kiss?: It was in the sixth grade. He liked her a lot!
Biggest Fear: Car accidents
Future College?: UCLA
Type Of Cologne: Acqua Di Gio by Giorgio Armani
First Date: "My first date was with a girl who is now one of my good friends. We went to Great Adventure for the day. We still laugh about it. It was a lot of fun."
Last Day (March 03): "About a month ago a friend of mine and I went on a double date and went clubbing. It was a dance workout. Good for the legs and lots of fun!"
Worst Date: "Looking back. my worst date is probably one of the funniest ones. It had been set up by a friend and so I didn't know the girl very well. We went to the mall. Everything went fairly well for the first hour or so until I stepped on the escalator and my shoelace got stuck in the stairs. I couldn't move. Eventually I had to take my shoe off and leave the laces stuck in the escalator. I had to wear my shoe for the rest of the night without a lace and it wa embarrassing."
Best Date: "I was in LA and a quite wonderful girl and I went out to dinner in an open-air restaurant right on the beach in Venice Beach. We walked down the bike trail there on the beach for a mile watching the Street Performers do their thing and then we took our shoes off and ran down the beach after dark right along the shoreline. The weather was beautiful, the girl was beautiful and I decided I may have to live in California at some point."
Did You Know...?
-Jesse wears glasses for fashion
-Jesse's Mom and Dad are/were both singers who have/had an acappella vocal group that sings/sang doo-wop. Jesse and Lea have both sung doo-wop background vocals at home his Mom and Dad for several years.
-Jesse use to act on the soap opera All My Children. He played Adam Chandler Junior (JR)
-Jesse drinks coffee [Jesse uses creme and two pacts of sugar]
-Jesse got braces at the end of December of 2001
-Jesse's rat Mocha just recently died
-Jesse was too shy to tell his crush that he liked her so he told her friend to her tell and realized that she liked him too!
-That the McCartney family did several shows together for several months a year before dream street.
-Their procer says that Jesse is the bad boy of the group. He says "I know he's the one who will be arrested first, out of anyone in the group." ::Credit to:: Untouchable
-When Jesse auditioned for Dream Street, he sang a Backstreet Boys' song, forgot the words, and covered it up with an "Ooh ooh ooh". That's when the procer knew he wanted Jesse for the group. ::Credit to:: Untouchable
-Jesse once got beaten up by some boys just for being an actor and model. ::Credit to:: New York Newspaper Article Untouchable
-He doesn't like the sound of squeaky shoes
-Filing finger nails gets on Jesse's nerves
-Jesse prized possession is his four wheeler
-Jesse says his best feature is his smile
-Jesse plays the Saxaphone
-Jesse was a member of a singing group called Sugar Beats
-Jesse is now going back on performing on Broadway
-Jesse might be going solo!
-Jesse's fastest pitch is about 65 MPH. People strike out on the curve ball.
-Jesse and his friends cook! They come up with their own concoctions.
-Jesse's fave animal is a Giraffe..:)
-Jesse usually stays up until about 11:00 PM on school nights and on weekends about 12:30 or 1:00 AM.
-Jesse was born on a Thursday
-Jesse's dad is a volunteer firefighter
-Jesse thinks himself as a 'preppy person'
-Jesse would love to meet Will Smith and work with him sometimes on music or movie
-Jesse has a scar on his left eyebrow
-If he could change his name he'd want it to be Boris (err...ok..?)
-He uses aresol spray deoderant
-His favorite roller coaster is the Goliath
-His favorite colonue is Acqua di Gio by Armani
-He hates Snowcones
-He wears shoes most of the time, not sneakers
-He tried out for the 6th sense (THIS i never knew!)
-He had braces (Jan. 23, 2002- May 10, 2002)
-He was in a NFL commercial as Peyton Manning
-He was in a sunny delight commercial
-A fan once gave Jesse a 24 k-gold bracelet with his name engraved on it.
-His favorite X-Box game is NHL Fever
-His first crush was a girl named Samantha
-The longest he had a relationship for was 8 months in 9th grade
-He prefers to wear hats over visors
-In March of 2003, Jesse's procer, Sherry, posted on his message board: "And okay, Jesse's eyebrows ARE a bit bushy but he's just too manly to wax or tweeze. I actually asked him if he would. Negative on that." aww! lolz
-Greg's little cousin Teresa has a HUGE crush on Jesse!
-During the filming of the music video for It Happens Every Time, a piece of firework exploded too close to the boys and a part of the rocket fell onto Jesse's arm and burned him!

中文版:
姓名：Jesse McCartney
生日：1987年4月9日 牡羊座
出生地：美国纽约市
现居地：纽约市威斯特郡(Westchester County )
身高：5'8" (约173公分)
体重：140磅 (约63公斤)
年纪：18岁
头发颜色：金色
眼睛颜色：绿色
交友状况：单身
宠物：名叫奥立佛的猫
最喜欢的书："Death Be Not Proud" by John Guther
最喜欢的颜色：橘色
最喜欢的食物：披萨及加州酪梨寿司(California Rolls)
最喜欢的电视影集：六人行
最喜欢的电影：灵异第六感、美国X历史
最喜欢的男演员：威尔史密斯、金凯瑞、罗宾威廉斯
最喜欢的女演员：瑞丝薇斯朋
最喜欢的乐团：詹姆斯泰勒、约翰梅尔
最喜欢的歌曲：T.A.T.U "All The Thing She Said"
昵称：小杰
喜欢的音乐类型：流行及摇滚
最喜欢的乐团：Eve 6
最喜欢的运动：棒球及足球
最喜欢的运动球队：纽约洋基队和纽约巨人队
最擅长的运动：棒球!!!!!!
最喜欢的汽车： BMW M3
最喜欢的科目：数学及体育课
最不喜欢的科目：历史
上什麼样的学校：公立学校
嗜好：打棒球、滑水、演戏
最喜欢：滑雪／水
得过最喜欢的礼物：棒球手套及手机!!!!
[MOVE]喜欢异性的类型：好脾气及甜美的笑容(我喜欢会让我笑的女生，我其实不太爱笑，但如果有女生会让我笑的…我就会爱上她!)
最喜欢的约会方式：去海边!!!!
当你长大后想做什麼：当歌手
第一次演戏：在地方小戏院演「孤雏泪」的奥立佛
你最想从事什麼样的工作：当歌手及演员
当你在演一些情绪激动的戏你会如何培养情绪：想一些令人沮丧的事
手足：有一个弟弟(Timmy)及一个妹妹(Lea)
感情世界：在高一时曾经与一个女孩约会8个月
会与歌迷约会吗：会的，不过要先与她熟络以后
穿什麼样的内在美：四脚裤
习惯的事：喝咖啡加1个奶球及2包糖
图片：http://www.avexnet.or.jp/jesse/extra/images/wp_1_large.jpg
http://coppermine.galacnet.com/jessemacdotorg/albums/userpics/10001/11%7E8.jpg
http://coppermine.galacnet.com/jessemacdotorg/albums/userpics/10001/1%7E27.jpg

4、谁知道英语合成词的特点啊，急用，谢谢啊！2000词左右的能帮忙找点不？

由两个或两个以上的语素(也有称作词素)组成的词叫合成词。现代汉语词汇中，合成词占了绝大多数。合成词中，多数由两个语素构成，两个以上的语素构成的是少数。

组合的基本形式可分为两类：

由词根和词根组合成的称为复合词，如书本、草木、机器等；

由词根和词缀合成的称为派生词，如车子、花儿、阿姨等。

至于组合的格式，则可分为：并列式、偏正式、支配式、陈述式、补充式、名量式等。

常见的合成词：
air conditioner空调机air raid空龚

alarm clock闹钟arms race军备竞赛

assembly line装配线baby-sitter看孩子的人

bank account银行帐户birth control节制生育

blood donor献血者blood pressure血压

book case书柜bookmark书签

brain drain人才流失burglar alarm防盗警报器

bus stop公共汽车站can opener开罐器

car park停车场contact lens隐形眼镜

corporal punishment体罚cotton wool药棉

credit card信用卡death penalty死刑

estate agent地产经纪人fancy dress(ball)化装舞会

generation gap代沟greenhouse effect温室效应

health center医疗中心heart attack心脏病发作

heart failure心国衰竭hire purchase分期付款

income tax所得税labour force劳动力

labour market劳动市场letter-box信箱

mail order邮购定单mineral water矿泉水

mother-tongue母语nail varnish指甲油

news bulletin新闻公报package holiday一缆子度假计划

pen friedn笔友pocket money零用钱

police station警察分局post office邮局

sign language手语soda water苏打水、汽水

sound barrier音障table tennis乒乓球

tea bag袋泡茶tea-table茶几

telephone number电话号码toilet-paper卫生纸

unemployment benefit失业救济金welfare state福利国家

X-ray X光youth hostel青年旅舍

central bank中央银行civil rights公民权力

compact disc激光唱盘current affairs时事

dry cleaning干洗fast food快餐

first-aid急救French fries炸薯条

general knowledge人所共知的事general public公众

higher ecation高等教育high heels高跟(鞋)

high jump跳高high school中学

human being人human rights人权

instrial relations劳资关系modern languages现代语言

musical instrument乐器natural history自然历史

natural resources自然资源nervous breakdown神经失常

old age老年old hand老手

open air露天open letter公开信

personal computer个人电脑polar bear白熊，北极熊

public sector公营部门remote control遥控

social security社会保险social services社会服务(事业)

social studies社会研究social work(er)社会工作(者)

solar system太阳系stainless steel不锈钢

vocal cord声带yellow pages (电话簿)黄页部分

5、变形金刚人物有哪些？

1.擎天柱/柯柏文（Optimus Prime，配音Peter Cullen）

汽车人的首领，很多年前他被“the Matrix of Leadership”（植于机器人首领胸中的一种固件，相当于王冠）选中成为新的首领，他谦逊的接受了。

从此由赛伯顿星球（Cybertron）上一名普通的劳动阶级机器人变成了宇宙中最强大的仁爱之师——汽车人的首领。当他带领着部下准备作战时，总会说那句著名的台词“汽车人，变形出发！”

2.大黄蜂（BUMBLEBEE）

在电影版中他是主人公男孩萨姆（Sam Witwicky）的第一辆车——通用雪佛兰Camaro（最近这辆车的真车在中国出现，由上海网友拍到，看来在中国买到大黄蜂也不是梦想了）。

大黄蜂是随着飞船来到地球的汽车人之一，参加了多场战斗，是汽车人的一名优秀侦察员。在汽车人大家族里大黄蜂个头算小的，被其它同伴当作小弟弟，但他执行危险任务可一点不比别人逊色。

3.救护车/力捷（RATCHET）

在汽车人中担当了“医生”的角色，本是一辆救护车，但在电影里改为通用“悍马H2”（Hummer H2）抢险救急车，作用比原来更广泛了。虽然“治病救人”是他的工作，但作战起来他也丝毫不逊色，他的勇气和忠诚经得起时间的考验。

4.铁皮（IRONHIDE）

铁皮是个强悍的家伙，就像个随时准备掏枪的牛仔。他是擎天柱的老友，在汽车人兄弟中要数他参加的战斗最多，通常他负责一些重要人物的保卫工作。

同时也是擎天柱的私人保镖，粗野但是善良，铁皮可以射出温度极低的液氮子弹和温度很高的铅弹，他还装备有声纳、雷达、无线电波探测器。

尽管在汽车人里数他速度最慢，但他的外壳由Trithyllium钢合金制成，这种合金中含有辐射碳纤维，从而使他不易受到攻击。他变形后是一辆通用公司的GMC越野车。他最喜欢说：“高科技的线路无法取代血肉之躯”。

5.威震天/麦加登（Megatron）

狂派霸天虎们的冷酷领导，《变形金刚》里面的大反派，能变成飞机、坦克，但通常（G1）变形后是一把枪。

在赛伯顿星球上威震天领导的狂派和擎天柱领导的博派展开了一场内战，这场大战耗尽了星球上的大部分能源，双方都开始前往其它星球寻找能源。

期间威震天带着他的精锐部队跟踪并袭击了汽车人的宇宙方舟，结果致使两派的飞船坠落在地球上，多年以后火山爆发唤醒了“显像一号”电脑，方舟上的威震天和霸天虎机器人被一一修复。

6、期末复习突击（八年级上册）

初二英语上学期期末测试题
一、词汇。
A．词语释义。
( )1. I’m sorry. She isn’t here right
now.
A. at a time B. just now C. at times D. at the moment
( ) 2. Over two hundred men died in the accident.
A. less than B. about C. nearly D. more than
( ) 3. I called him three times yesterday, but no one answered.
A. visited B. told C. telephoned D. asked
( ) 4. --- Hello! May I speak to Jim?
--- Hold on, please.
A. Speak B. Wait a minute C. Call again D
( ) 5. In China autumn lasts from August to October.
A. goes B goes on C. keeps D. stays
B. 根据句意填入恰当的词。
6. You must look after yourself and keep _______.
7. ______ TV too much is bad for your eyes.
8. December is the ______ month of the year.
9. What ______ did you give Ann for her birthday part?
10. The ______ will stay above zero in the daytime.
二、用所给词的适当形式填空。
11. You’d better ______ (not talk) in class.
12. They have a lot of _____ (work) to do.
13. It will be _______ (cloud).
14. The wind is blowing _______ (strong).
15. Look! The bus _________ (come).
16. The child stopped ________ (cry) when he saw his mother.
17. Jim picked _______ (many) apples than Tom.
18. I ___________ (go) to see him tomorrow.
19. He _______ (buy) a new pen on his way to school yesterday.
20. How many ______ (sing) are there in your band?
三、选择填空。
21. My job is ________.
A. teaching you English B. teaching your English
C. to teach you English D. to teach your English
22. __ you ____ a good time in the park last Sunday?
A. Were…have B. Was…have C. Did…have D. Did…had
23. He ______ down and broke his leg.
A. feels B. falls C. felt D. fell
24. There is a bridge _______ the river.
A. over B. on C. above D. below
25. Japan is ______ the east of China.
A. to B. in C. on D. at
26. Which colour do you like ______, white, red or yellow?
A. good B. better C. well D. best
27. It’s cold outside. _______ putting on your sweater?
A. Shall we B. Will you C. Why not D. What about
28. I’m busy. I have ______ time to watch TV.
A. much B. any C. little D. few
29. We’ll go there _____ the morning of September 20.
A. on B. in C. at D. of
30.There ______ a football match in our school next week.
A. will have B. will be C. is going to have D. are going to be
31. _____ of the boys has a new bike.
A. Each B. All C. Every D. Both
32. We started out _____ two weeks.
A. in B. after C. later D. for
33. After a short rest, I ______ working.
A. began on B. went on C. start to D. go to
34. ______ beautiful flower!
A. What B. How C. What a D. How a
35. I ______ her _____ in the next door at eight last night.
A. heared…sing B. heared…singing C. heard…sing D. heard…singing
四、按括号内的要求改写句子。
36. I didn’t move to England because I like living in China. （就划线部分提问）
_____ ______ you _______ to England?
37. Spring is his favourite season. （改为同义句）
He ______ spring ______.
38. Mrs Gao will stay in Beijing for two years. （就划线部分提问）
_____ _____ _____ Mrs Gao ______ in Beijing?
39. It’s a fine day today. （改为感叹句）
______ _____ ______ it is today!
40. You teach me English. Thanks a lot. （改为同义句）
______ very much _____ ______ me English.
五、完成句子。
41.请随便吃点鱼吧。
some fish.
42.去年你上学迟到过吗？
you last year?
43.我每天花费半小时读英语。
_____ _____ me _____ _______ hour _______ read English every day.
44.她正在为她的晚会做准备。
She is _____ _____ ______ her part.
45.北京的天气怎么样？
______ the weather _____ in Beijing?
六、补全对话。
A: Hello!
B: Hello! May I __46___ _47___ Jim, please?
A: I’m __48___ he isn’t here__49_____ now. Can I take __50____ _51___ for you?
B: Yes, please. Please tell him to come to my party at 8:00.
A: OK!
B: Thanks __52____ ___53_____. Goodbye.
A: It’s __54____ ___55____. Bye.
七、完形填空。
One day two brothers went fishing. They had a __56__ with them. When they come ___57__ the river, they threw down their hats on the ground and went to the river to look __58___ fish. It was so _59__ that day, and soon they wanted their _60__. They told the dog to go __61__ for them.
When the dog got there, he tried to take __62__ hats together in his __63__ at the same time. It was not very easy. Then the dog found that _64__ of the hats was smaller __65__ the other. He put the smaller one in the larger one, then he could carry both hats.
( ) 56. A. child B. boat C. ck D. dog
( ) 57. A. out B. near C. from D. into
( ) 58. A. after B. at C. like D. for
( ) 59. A. cold B. cooler C. hot D. warm
( ) 60. A. shoes B. hats C. trousers D. clothes
( ) 61. A. over B. by C. back D. out
( ) 62. A. all B. some C. both D. many
( ) 63. A. arms B. hands C. foot D. mouth
( ) 64. A. each B. one C. few D. any
( ) 65. A. than B. as C. like D. with
八、阅读理解。
Sandwich was an Englishman. He lived in the 18th century. Sandwich was rich, but he liked to play cards for money. He often played for 24 hours, and didn’t even stop to have his meals. He ordered(命令)his servants to bring him some meat and bread. He put the meat between the two pieces of bread and held the food in hid left and while he played cards with his right hand. People liked Sandwich’s idea, and from then on they ate bread and meat as Sandwich did.
From the name of the man, Sandwich, we have the word of the food “sandwich” today.
( ) 66. Sandwich was ________.
A. America B. an American C. an English woman D. English
( )67. He didn’t stop to have his meals because he ________.
A. liked to go on playing cards B. like some meat and bread
C. didn’t like his meals D, didn’t like playing cards
( )68. “Sandwich ”was made of ________.
A. bread and chicken B. fish and bread
C. two pieces of bread with meat in between
D. some bread only
( )69. Why did people begin to eat sandwiches from that time on?
Because________.
A. they liked Sandwich B. they liked Sandwich’s idea
C. sandwiches were very delicious D. they liked cards
( )70. How do we have the word of the food “sandwich” today?
We have it _____.
A. from the name of meat and bread
B. from the name of the man, Sandwich.
C. from the names of cards
D. from the name of a place
The answers:
一、A. 1---5: D D C B B
B. 6. healthy 7. Watching 8. twelfth 9. present 10. temperature
二、11. not talk 12. work 13. cloudy 14. strongly 15. is coming
16. crying 17. more 18. will go 19. bought 20. singers
三、21—25: C C D A A 26---30: D D C A B 31—35: A B B C D
四、36. Why did; move 37. likes, best 38. How long will, stay
39. What fine weather 40. Thanks, for teaching
五、41. Help yourself to 42. Were, late for school
43. It takes, half an, to 44. getting ready for 45. What’s like
六、46. speak 47.to 48. afraid 49. right 50. a 51.message
52. a 53. lot 54. a 55. pleasure
七、56—60: D B D C B 61---65: C C D B A八、66---70: D A C B B
一、认真填一填，你一定能填得又快又准。（每题2分，共26分）
1、－27的立方根是 ；3的算术平方根是 ；
2、一个多边形的每个外角都是40°，则这个多边形的内角和是 ；
3、如图，在矩形abcd中，ac、bd交于点o，
且ab=oa=3，则ad= ；
4、菱形的面积是24，一条对角线的长为6，则菱形的另一条对角线的长为 ；
5、“怪兽吃豆豆”是大家都喜欢的一种计算机游戏。现在如果用（2，1）表示“怪兽a”所在的位置，且知道“豆豆d”在第四象限，并且到 轴、 轴的距离分别是3和2，
那么“怪兽a”要吃到“豆豆d”所走的最短距离是 个单位长度；
6、已知 是方程kx－y＝3的一个解，那么k的值是 ；
7、点a（ ， ），b（ , ）关于 轴对称，则 = ；
8、已知方程 ，则用 的代数式表视为 ；
9、为了美化我们的家园，保护生态环境，初二年级的同学积极参加植树活动。现已知一、二两班共植树200棵，其中一班植树的总数是二班的1．5倍多3棵．如果设一班植树x棵，二班植树y棵，那么可以列方程组 ；
10、若 ，且 ＞0，则 的值为 ；
11、某物体所受压力f（n）与受力面积s（㎡）
的函数关系如图所示，则当受力面积是
30㎡时，所受的压力是 （n）；
12、如图，正方形abcd的面积是64，点f在ad上，点
e在ab的延长线上，ce⊥cf，且△cef的面积是50，
则df的长度是 ；
二、精心选一选，你一定能选出下列每题中唯一正确的答案。（每小题3分，共30分）
1、下列说法不正确的是（ ）
a．－1的立方根是－1 b． 1的平方是1
c．－1的平方根是－1 d． 1的平方根是
2、下列四点中，在函数y =3x+2的图象上的点是（ ）
a．（－1，1） b．（－1，－1） c．（2，0） d．（0，－1．5）
3、小红画了两条相等并且互相垂直的线段，以它们为对角线的四边形是（ ）
a．平行四边形； （b）菱形： （c）正方形； （d）无法确定
4、下列说法中，正确的个数是（ ）
（1）只用一种图形能够密铺的有三角形、四边形、正六边形
（2）菱形的对角线互相垂直平分
（3）正比例函数y=kx（k≠0）的图象经过点（0，0）和（1，k）
（4）平移和旋转都不改变图形的大小和形状．
（5）一组对边平行，另一组对边相等的四边形是平行四边形
a． 2个 b． 3个 c． 4个 d． 5个
6、下列各函数中，x逐渐增大y反而减少的函数是（ ）
a． b． c． d．
7、已知点p（ ， ）在第一象限，则点q ( ， ) 在（ ）
a． 第一象限 b．第二象限 c． 第三象限 d．第四象限
8、在下列图象中是一次函数 （其中 ＞0， ＜2）的图象是（ ）
10、四边形abcd的对角线ac、bd交于点o，设有以下判断：①ab=bc；
②∠dab=90°；③bo=do；ao=co；④矩形abcd；⑤菱形abcd；
⑥正方形abcd，则下列推理不正确的是（ ）
五、（7分）小明的作业本被顽皮的小弟弟不小心泼洒了墨水，结果列表和图象都有部分答案被污浊了．请你根据题中提供的信息，帮助小明补全表格和图象，并回答相关问题．
（1）列表
（2） 图象
-2 0 1 2
7 5 3 1
3）请你写出 与 函数关系式；（写出计算过程）
（4）求函数图象与两条坐标轴所围成的三角形的面积．
六、（ 8分）（5 ---10班同学做）某图书馆开展两种方式的租书业务：一种是使用会员卡，另一种是使用租书卡．使用这两种卡租一本书，租书金额 （元）与租书时间 （天）之间的关系如图所示．根据图中提供的信息回答下列问题：
（1）办理会员卡需要 元入会费？
（2）两种租书方式每天租书的收费分别是多少元？
3）分别写出用租书卡和会员卡租书的金额 （元）
与租书时间 （天）之间的函数关系式．
（4）若两种租书卡的使用期限均为一年，则在这一年中如果租书时间累计为80天，请你通过图象和计算两种方法说明采用哪种租书方式比较划算？
六有甲、乙两家通讯公司，甲公司每月通话（不区分通话地点）的收费标准如图所示；乙公司每月通话的收费如表所示．
（1）观察图1，写出甲公司用户月通话时间不超过400分钟时应付的话费金额；
（2）求出甲公司的用户通话时间超过400分钟后，通话费用 （元）与通话时间 （分）之间的函数关系式
3）王先生由于工作需要，从4月份开始经常去外市出差，估计每月各种通话时间的比例是：本地接听时间∶本地拨打时间∶外地通话时间 = 2∶1∶1．设王先生每月的各种通话时间总和为 （分），通话费用为 （元）．你认为 不少于多少时间时，入乙通讯公司比入甲公司更合算？请用计算方法说明理由．
一、填空题：（每题2分，共26分）
1、 ， ； 2、1260°； 3、 ； 4、8； 5、4； 6、2； 7、0；
8、 ； 9、 10、 ； 11、90； 12、6
二、选择题：（每小题3分，共30分）
答案cbdcbacdcc
三、计算题，请注意符号，并写出必要的演算步骤 （每小题4分，共20分）
1、 ； 2、13； 四、解答题 （第（1）题4分；第（2）题5分）
（1）解：∵∠dce+∠ecb=90°，∠dce:∠ecb=2:1 ∴∠dce=60°，∠ecb=30° ∴∠cbe=60° 而∠acb=∠cbe 则∠acb=60° ∴∠ace=30° 2）解：①如图，以b点为原点，以bc所在直线为 轴建立坐标系．过点a、d分别作ae⊥bc， df⊥bc，垂足分别是e、f．在rt△aeb中, ∠abe=60°，ab=4，得be=2，ae= 。 且bc=2be+ad=8 ∴a、b、c、d四点的坐标分别为：a（2， ）， b（0，0），c（8，0），d（6，2 ）； ②sabcd= 五、（1） ； （2）图象如右图所示
（3（4）解：设直线与 轴和 轴分别交于点b、a。 点a坐标为（0，3），点b坐标为（ ，0） s△aob= 六、第（1）题（5 ---10班同学做） （1）办理会员卡需要 20 元入会费？
2）解：租书卡每天租书花费 （元）
设会员卡每天租书花费 元，则
得 3）解：租书卡
会员卡 4）解：①图象法：过点a（80，0）作ac⊥ 轴， 交 于点c（80， ），交 于点b（80， ）。 如图所示， ＞ 。说明使用租书卡比会员卡划算。 ②租书80天，租书卡花费 （元） 会员卡花费 （元） 说明使用租书卡比会员卡划算。 第（2）题1）解：30 元 （2）解：设 ∵直线过点（400，30），（500，70）， ∴ 得从而 3）解：甲： 乙： ∵ ＞30， ∴满足题意要求的 ＞400。 即得所以 不少于1200分钟时，入乙比甲合算。
初中物理八年级上册期末模拟试题
湖北省罗田县石桥铺中学 张召雄
考试时间90min 总分100分
一、选择题（下列各题中只有一个正确答案，请将正确的答案填写在答题卡内3分/题,36分）
1、如图所示，在演示“声音是由于物体的振动而产生的实验”中，将正在发声的音叉紧靠悬线下的小球，小球被多次弹开，小球的作用是
A．使音叉的振动尽快停下来B．把音叉的微小振动放大，便于观察C．使声音的振动时间延长
D．使声波多次反射形成回音2、生活处处有物理，留心观察皆学问。以下对生活的观察解释正确的是（ ）A．初冬季节，在家里洗澡时发现房间里充满“白气”，这些“白气”是水蒸气B．在夏季的早晨看到足球场里的草叶上挂满了露珠，而到了初冬，露水不见了却看到薄薄的一层霜，有人认为霜是由露变成的C．放在衣橱里的樟脑丸，时间久了会明显变小，是因为樟脑丸蒸发为气体跑掉了D．把冰箱里的冻豆腐取出，冰化后，发现豆腐里有许多小孔，这是豆腐里的水先遇冷结冰，后又熔化成水形成的 3、酒精涂在人的皮肤上会感到凉，这是因为（ ）A．酒精蒸发时，放出热量B．酒精蒸发时吸热，吸热致冷C．酒精的温度低D．不能确定具体原因4、如图所示的四种现象中，由于光的直线传播形成的是（ ）5、下列用品中，通常情况下属于绝缘体的是（ ）A．料直B．笔芯C．铁制铅笔盒D．金属小刀片6、使用下列光学器件其目的是使物体成倒立缩小实像的是（ ）A．放大镜
B．照相机
C．幻灯机
D．投影仪
7、检查视力的时候，视力表放在被测者头部的后上方，被测者识别对面墙上镜子里的像。如图所示，则下列说法正确的是（ ）
A．视力表在镜中的像与被测者相距4．2m
B．视力表在镜子中的像与视力表相距4．6m
C．视力表在镜子中的像与被测者相距4．6m
D．视力表在镜子中的像与被测者相距5．4m
8、如图所示是小芳同学制作的模型照相机，通过调整内外纸筒的距离，可以在半透明膜上看到远处的景物倒立的像。使用此模型相机，下列说法正确的是（ ）
A．看到远处的景物的像是虚像
B．如果看到远处的景物很清晰，那么看近处景物时应该把内纸筒向外拉一些
C．应把内纸筒朝明亮的室外，凸透镜朝较暗的室内
D．凸透镜与半透明膜之间的距离相当于凸透镜的焦距
9、月球探测器“嫦娥一号”已于2007年10月26日顺利升空，目前正在绕月飞行。月球表面没有空气，引力只有地球的1/6。假如你能有幸登上月球，有关下面的观察或实验，说法正确的是（ ）
A．在鼓面上撒一些纸屑敲击鼓面会看到纸屑在在跳动的同时听到鼓声
B．不能永实验验证光的反射规律，因为光在没有空气的时候不可能传播
C．敞开锅烧开水，水的沸点是1000C
D．你带上去的国旗在阳光下看依然保持鲜艳的红色
10、为了探究声音产生的条件，有人建议用以下几个实验，其中能达到目的是（ ）
A．放在钟罩内的闹钟正在响铃，把钟罩内的空气抽出一些后，钟声明显减小
B．吹笛子时，手指按住不同的孔便会发出不同的声音
C．使正在发声的音叉接触水面，水面溅起水花
D．把相同的几个杯子盛上不同高度的水，用筷子敲击他们，可以听到高低不同的声音
11、下列现象钟没有利用回声的是（ ）
A．渔民利用声呐探测鱼群
B．医生利用B超观察人的身体状况
C．蝙蝠在飞行过程中靠发出的超声波遇到障碍物反射回的声波确定目标
D．录音棚内用软泡沫塑料隔音
12、在如图所示电路的四个电路图中，符合电路的基本组成条件且连接正确的是（ ）
二、填空题（1分/空 共23分）
13、声音的传播需要 ， 不能传递声音，当你倾听他人讲话时，传播声音的介质是 。
14、下列器件中，属于电源的是 ，属于用电器的是 （只填序号）A．发电机；B．门铃；C．电池；D．电视机；E、电流表；F、导线；G、开关。
15、如图所示三支温度计的读数分别是甲是 ℃，乙是 ℃，丙是 ℃。
16、在图中 （填甲乙）表示近视眼成像示意图。矫正远视眼应该佩戴的眼镜镜片是 透镜（填凹或凸）
17、小刚同学；利用焦距为10cm的凸透镜做实验，实验装置如图所示，在实验过程中保持凸透镜的位置不变，请你根据所学习的知识完成下列填空：
（1）改变蜡烛的位置，使其位于20cm的刻度线处，再移动光屏，使蜡烛在光屏上成清晰的倒立、 实像。（填放大、缩小、等大）。
（2）改变蜡烛的位置，使其位于35cm刻度线处，再移动光屏，使蜡烛在光屏上成清晰的 实像（填倒立 或正立）
（3）改变蜡烛的位置，使其位于42cm刻度线处，小刚从透镜的右侧通过透镜可以看到一个正立、 的蜡烛焰的像。（选填放大、等大、缩小）
18、红外线、紫外线、空气等都是不可见的。对于不可见的事物，人们是通过某些“效应”去研究的。空气看不见，但空气流动能形成风，风吹树叶树叶就晃动，我们通过树叶的晃动，就能知道附近的空气在流动，树叶晃动得越厉害，我们就可以知道空气流动得越快。同样，红外线、紫外线虽然看不见，但红外线可以通过“ 效应”进行感知，紫外线可以通过“ 效应”让人看得见。验钞器是利用紫外线能使钞票上 发光而制成的。
19、由于石油、煤炭等目前大量使用的传统化石能源枯竭，作为新能源的太阳能的应用将更为广泛，太阳灶就是利用太阳能工作的。太阳灶是 镜，为了受热快，必须把被加热物体放在 。
20、如图所示当开关闭合时，两只电流表A1、A2的示数如图甲乙所示，那么通过灯泡L1的电流是 A，通过灯泡L2电流是 A。（甲乙电流表量程都是0．6A）
21、如图所示是海波的熔化图像，根据图像获得合理的信息有：
信息一： 信息二： 信息三： 三、作图与实验（22、23t各3分，24t 6分 25t /5分共17分
22、请根据如图所示实物图画出对应的电路图。
23、如图所示平面镜M前有一个发光点S，S1是它在平面镜中所成的像，当平面镜转动一个角度后，像的位置为S2，试作出平面镜新的位置。
24、在进行“探究凸透镜成像”的实验中，（1）说出两种简便易行的判断透镜是否是凸透镜的办法：① ② （2）提供的实验器材如下：凸透镜、光屏、蜡烛、火柴、还缺少的是 。
（3）应把凸透镜、蜡烛、光屏放在同一直线上，点燃蜡烛，调节蜡烛、凸透镜、光屏的高度，使蜡烛焰 、光屏的中心大致在 。
（4）当蜡烛在凸透镜的左侧20cm处时，在蜡烛的右侧光屏上得到一个倒立、等大的实像，则凸透镜的焦距为 cm。
25、在“探究平面镜成像的特点”的实验中，应在桌面上竖立一块 作为平面镜，实验时，要使镜后的蜡烛与镜前相同蜡烛的像完全 ，这是为了 ，从而得到像与物体 ，像与物体到镜面的距离 的结论。
四、探究与体验（15分）
26、一天，小明上完体育课后去取水喝，由于没有茶杯子，就用金属易拉罐来装水，他感到很烫手，而他觉得平常用玻璃杯装开水好像没有这么烫。他想：“各种物质都能传热，哪些东西更容易传热呢？”他猜想：易拉罐是金属做的，是不是金属传热本领较大呢？于是他找到了以下器材：一个茶杯、开水、一把塑料调羹、一把木制调羹和一把金属制的调羹，他想利用这些器材验证他的猜想。
（1）请你设计一个简单的方案，验证小明的猜想。
2）人们把善于传热（或传热本领大）的物质叫做热的良导体，例如金属就是热的良导体；人们把不善于传热的物质叫做热的不良导体，请你根据生活经验对生活的观察说出三种热的不良导体。 27、小名和小红准备了四五个小灯泡和其他一些合适的电路元件，其中有两只小灯泡L1、L2的规格完全相同。他们进行了探究实验，并写了一份探究报告。
问题：并联电路中干路电流与各支路电流有什么关系？
猜想：在如图所示电路中可能会有IC=IA+IB
实验设计：在如图电路中分别把电路中A、B、C各点断开，把电流表接入，测量各点电流，看看他们之间有什么关系。
进行实验：按电路图连接电路，闭合开关，纪录数据如下表：
A点电流IA /A
B点电流IB /A
A点电流IC /A

0．2
0．2
0．4
分析论证：由数据可得结论：并联电路中干路的电流与各支路的电流关系是干路电流等于各支路电流的和，并且各支路电流相等。
（1）他们探究报告缺少的项目有 和交流。
（2）他们的探究结论是否有问题？请你分析一下结论，其中：
正确的部分是 错误的部分是 （3）请分析：从他们设计实验和进行实验的情况看，导致上述结论中“错误部分”的错误原因是什么？应该怎么做？
五、应用与创新（9分）
28、“模拟法”是一种重要的科学方法。它以真实的自然环境或客观事实为原型，创造出和自然环境或客观事实相同或相近的实验环境对具体的问题进行研究的一种方法。
如图所示是模拟大自然中“雨”的形成的实验装置。为了让实验效果明显，，实验时应在锥形瓶中加入 （填冰、温水、与室温相同的水），在在蒸发容器中放入 （填冰、温水、与室温相同的水）
（2）实验中可以观察到在锥形瓶口内有 出现，其形成的原因是 在蒸发容器的底部出现了水滴这就形成了“雨”。
（3）结合本卷26小题的知识，你认为如图中的蒸发容器用 容器为好（选填“金属”或“玻璃”）

7、soundbox低频陷阱怎么样

低频陷阱常见的有以下几种类型，每种有一些小的变种。 赫尔姆霍茨共鸣器是因这一领域的权威科学家Herman von Helmholtz （1821-1894）而得名。
它的设计原理很简单，一个大箱子有一个小开口就会对某一特定频率产生共鸣。想一下当你沿着汽水瓶口吹气时，它发出怎样的声音，你就会受到启发了。
任何落入低频陷阱频段中的声波会引起箱体内部空气的往复运动。声波能量于是被消耗到（箱体内的）空气中，从而将房间中的声波能量除去。这是一种理想化的状态，但已足够接近我们的意图。
赫尔姆霍茨共鸣器可以设计为窄频带（只移除有问题的频率），也可设计为宽频带，适用于一段频域。但是，它要求箱体必须坚硬厚重。由于通常体积太大较难构造。 共鸣式低频陷阱采用吸音材料，通常它被称为嵌板式陷阱。
它通常使用薄薄的夹板或类似的材料构成面板。嵌板式陷阱通常使用玻璃纤维来拓宽吸收范围，设计良好的话它可以有效的覆盖一个八度音阶。
虽然依旧不够完美，但比起赫尔姆霍茨式陷阱来已经有更宽广的吸收范围。采用此种陷阱来处理房间时，通常另一种也会被采用，一种用于控制 100hz左右的频率，另一种控制200hz。在低频80－300hz的主要频段中如此处理是可以接受的（翻译的或许不对）。尽管此种陷阱不像赫尔姆霍茨式陷阱那样笨重，可他们体积依旧不小，而且往往很贵，还需要复杂和仔细的分析。 硬质的玻璃纤维同家用的绒毛类材质相似，它能被压缩为原始体积的四分之一并塞进一到四英寸厚的嵌板中。一个塞入玻璃纤维的三英寸厚的嵌板的吸音性能相当于未经压缩的一英尺厚的玻璃纤维。使用玻璃纤维的低频陷阱的最大优势在于由于它不是基于共鸣的原理因此适用于更宽广的一段频率范围。
硬质玻璃纤维嵌板也被大量用于吸收中高频。结合硬质玻璃纤维隔膜可以达到很高的性能。象这种混合式设计可以覆盖很宽一段频率，低频可以潜至80hz甚至更低。 采用玻璃纤维的陷阱对于80hz以下的频率很难产生充分有效的吸收。不过大多数的房间不需要吸收80hz以下的频率。
因为一面石头墙（sheet rock walls）会穿透和吸收这些极低的频率。因此除非你有一面水泥或砖头（walls made of cement or block）制的墙，或者由两面石头墙隔离出来的空腔，这种情况下玻璃纤维陷阱是最好的选择。 除了之前提到的，赫尔姆霍茨共鸣器、嵌板式陷阱、玻璃纤维式陷阱以外还有隔膜材料吸收器以及木饰面膜式低音陷阱。

8、有卖健伍音响sw-500,omni-a5音箱的？

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9、一段时间的轻柔吹奏是否能延长新口琴的寿命？

There is a long established piece of advice that states if you play your new harmonica very gently when it is new, that it will somehow extend its playing life. I know of no reliable evidence to suggest that there is any truth in this. However, this does not stop people going though the ritual of playing them gently for the first week, or even going to the extreme of holding them out of their car windows as they drive down the road, letting the wind "loosen up" the reeds - which to me just sounds like a good way to get bugs in your harp! The most often used explanation is something like "Well, when you get a new car you have to drive it gently for the first few miles, before letting it rip." This is true, but it has very little relevance to how the harmonica works. Car engines have lots of parts that come into contact with each other and everything needs to settle into place in order to work together optimally. A harmonica has free reeds that vibrate in an airstream and they do not (unless there is a problem with the harp) come into contact with other components. Here is a better example - if you take a brand new saw and only cut balsa with it for the first week, will it last any longer when you start sawing up oak with it?
在拿到新口琴以后先轻轻演奏一段时间以延长口琴的寿命，这是一种常见的观点。不过我并没有见过任何明显的证据表明这一建议的正确性。当然，仍有人会例行公事地轻轻演奏他们的新口琴一个星期，甚至走极端——在开车时把口琴伸出窗外，让风来“放松”口琴的簧片。在我看来，这正是把口琴搞出毛病的好办法。有人解释说，“新汽车需要经过一个磨合期才可以飚起来”，这是对的，但是这不适用于口琴。汽车引擎有很多的零部件，它们需要一段时间的磨合才能很好地协同工作，但口琴只有一个在气流中振动的自由簧片，除非故障，簧片不会与任何其他部件接触（也就不存在磨合的问题）。举一个例子：如果你有一柄新锯准备用来锯硬木，但是在开始使用它的第一个星期，你只锯软木，那么以后锯硬木的时候它的寿命就会更长么？
When I first started playing the harmonica, I used to "break them in" very carefully and my harps would generally last a few weeks before I wore them out. After more than twenty years of playing, I now no longer bother to give them any special treatment when they are new and my harps seem to last almost indefinitely. I am still playing some of the first Lee Oskars that I bought back in 1986 and in the last fifteen years, I think I have only worn out four or five reeds e to playing them (although I have damaged quite a few reeds by experimenting with them). This includes several seasons working as a street musician for three months of the year, playing for eight hours a day, six days a week. That's an awful lot of time that my poor reeds have spent vibrating back and forth. The reason that they have last so long is not that they had any magical treatment in their early life, but simply that I play with good technique, that achieves volume and projection without une stress on the reeds. That technique is something that a good teacher should be able to explain, but it is a little beyond the scope of this web page.
刚刚开始学琴的时候，我经常很小心地“开琴”，我的口琴通常会在几个星期后用坏。吹了二十多年口琴以后，我不再为新口琴的做什么特殊处理，至于我的口琴能用多久，这难以确定。现在我仍然在吹一些Lee Oskar最早的口琴。这些琴是我1986年买到的，大约已经用了十五年。口琴中有好多簧片是被我做实验弄坏的，但我认为我真正吹坏的簧片只有四五个。这包括我曾经数次在一年的三个月中作为街头乐手每个星期演奏六天，每天演奏八小时，我可怜的簧片不得不在这漫长的时间里疲于奔命。然而这些簧片寿命很长。这并不是因为它们在使用初期经过了什么神奇的处理，而是因为我有合理的演奏技术，在获得足够的音量时并不给簧片过大的负担。优秀的口琴教师应该懂得这种技术，不过这超出了这篇文章的讨论范围。
I have heard many arguments to explain the process of "breaking in", but none of them have been very convincing. People with a better knowledge of metallurgy than I have, tell me that once you start to flex a piece of brass backwards and forwards, you start to fatigue it. Doing it gently for the first few hours merely delays the inevitable fatal fatigue. Of course, if you always play your harps gently, they will last much longer than if you abuse them, but reeds do not become "more flexible" if you break them in, nor do the reeds become "easier to bend". What does happen ring the first few hours of playing is that the tiny gaps between the reedplates and the comb start to seal up. If the comb is made from wood, the wood absorbs the moisture and swells to form a tight seal against the brass plates; if the comb is plastic or metals, bits of gunk from your mouth start to seal up any air leaks. These things make the harp more "efficient" as less of your breath is being wasted. This makes the harp more responsive and easier to play, but this is not e to any magical effect on the brass of the reeds.
我曾听说过关于“开琴”过程的诸多解释，但其中没有一个有足够的说服力。懂金属学的人告诉我，当你反复弯曲一块金属的时候，它就开始疲劳了。在开始的一段时间里轻轻地弯曲它并不会推迟最终的断裂。当然，如果你总是轻轻吹奏你的口琴，它的寿命会比你虐待它的情况下长出许多。但是“开琴”并不会使簧片更柔软或者更易于压音。在你吹奏新琴的头几个小时里，确实发生的事情是簧板和琴格之间的细小缝隙会被密封住。如果琴格是木制的，潮气会使之膨胀，琴格和簧板会变得更紧密；如果琴格是塑料或者金属制成，你的口水等等也会逐渐密封那些漏气的缝隙。这时口琴会变得更好吹，是因为浪费的空气减少了，而不是因为簧片有了什么神奇的变化。
Recently, the advocates of "breaking in" harmonicas have claimed that the procere is akin to a metallurgical process called "coaxing". However, the following passage is from an authoritative textbook Mechanical Metallurgy, 2nd Ed. by George E. Dieter:
最近，有“开琴”的鼓吹者声称此过程类似于冶金学的的“coaxing”处理，但是权威资料显示并非如此：
If a specimen is tested without failure for a large number of cycles below the fatigue limit and the stress increased in small incremements after allowing a large number of cycles to occur at each stress level, it is found that the resulting fatigue limit may be as much as 50 percent greater than the initial fatigue limit. This procere is known as coaxing. An extensive investigation of coaxing (G. M. Sinclair, American Society of Testing and Materials, Proceedings vol.52, pp 743-758, 1952) showed a direct correlation between a strong coaxing effect and the ability for the material to undergo strain aging. Thus, mild steel and ingot iron show a strong coaxing effect, while brass, aluminum alloys, and heat-treated low-alloy steels show little improvement in their properties from coaxing.
这一段是《机械冶金学》中的片断，比较专业，感觉不容易准确翻译。大体就是说coaxing可以延缓金属疲劳，延迟断裂，并且低碳钢和纯铁等比较适合coaxing，而黄铜，铝合金等不适合coaxing。
So from this it can be seen that coaxing is a very precise process which is not really comparable to advice such as "play it gently for a while before you let rip", or "hold it out of your car window for a few minutes as you drive down the highway". It can also be seen the none of the materials from which harmonica reeds are typically made (various types of brass and in some very rare cases, stainless steel) are known not to benefit from the coaxing process.
从上面可以看出coaxing是一个相当精密的处理过程，与“轻轻演奏”和“开车时把口琴放到窗外”并没有可比性。而且口琴簧片的材料（主要为黄铜，也有极少见的情况下是不锈钢）并不适合coaxing。
One thing which certainly does happen is that the player becomes more used to the instrument. As you will have noticed if you've ever accidentally put the harp into your mouth the wrong way around (we've all done it!) each reed requires a slightly different playing technique. If you accidentally draw on hole 9 thinking that it is hole 2, the chances are that no note at all will sound. You make an incredible amount of tiny adjustments to your playing technique for each hole of the harp, these adjustments being made almost unconsciously - I believe that a large part of the "breaking in period" has more to do with breaking in the player than with breaking in the harp.
确实会发生的一件事是演奏者会逐渐熟悉和适应自己手中的乐器。大家可能都注意到了，如果你偶然使用了错误的含琴方法，那么每个孔的演奏方法都要有些变化。如果你把琴拿反了，以为自己是在吸第二孔，但实际上是第九孔，那么可能不会发出任何声音。实际上，在吹奏口琴的过程中，你会对自己的动作做出无数细微的调整（以使口琴的每个音孔都正常发声），这种调整通常是无意识的——我相信，在“开琴”的过程中，真正改变的是演奏者而不是口琴（与其说是“开”琴，不如说是“开”演奏者）。
译注（一些题外话）：一个类似的事实是，初学者往往会被告知口琴的不同音孔其用气的方法是不一样的。要想尽快入门，必须尽快熟悉不同音孔的用气方式，在高音跳到低音或者相反的时候，可以马上调整气息，这样才能连贯演奏。这种调整会随着练习的深入变成无意识的。这个时候就可以说你已经开始熟悉这件乐器了。再进一步，主动地调整气息，有意识地在每一个音孔上找出省力而发音好听的用气方法并反复练习，甚至直到把这种气息练成下意识的行为，这是初学者快速取得进步的一种有效方法。另外，判断一支口琴质量如何的一个方面，就是看它是否有个别音孔太“个性”，比如特别难吹，音色和其他音孔差别过大等等。在这种情况下，要想在曲子中保持统一的音色比较困难，因为每到那个特别的地方，气息的调整就超出了下意识的范围，演奏者就要分心考虑，比如：又到那个难吹的音了，得多使点劲儿……等等。一般认为这样的口琴是不推荐使用的，尤其是半音阶口琴。
In the case of the chromatic harmonica, it is probably a good idea not to let rip in the first few minutes. Unlike most diatonics, the typical chromatic has valves which may take a while to settle properly into place. But in the case of blues harps, there is really nothing to be gained from "babying" them in their first weeks. How long your reeds last will depend upon how you play them, as well as on the harps themselves. Some harps (Lee Oskar and Suzuki ProMaster for example) have reputations for lasting longer than others. A harp which is well adjusted to your own playing style will tend to last longer, as you will be placing less strain on the reeds when you play. Good playing technique will also help, but keep your harp in its box all the time and it will probably last forever!
对于半音阶口琴，一段时间轻柔的演奏大概是有好处的。因为与全音阶（这里应该指十孔——译）口琴不同，典型的半音阶口琴存在盖膜，盖膜可能需要一段时间的演奏才能处于更合适的位置上。但是对于布鲁斯口琴，“娇惯”他们一个星期并没有特别的好处。簧片的寿命取决于你如何演奏，更取决于簧片本身（材料，质量等等）。确实有些口琴，比如Lee Oskar和Suzuki Pro Master，有着耐用的好名声。另外，一支经过调整，适应于你自己的演奏方式的口琴更耐用，因为这样的口琴在你演奏的时候簧片的负担较小。优秀的演奏技术也会有帮助，当然，把你的口琴装在盒子里从来不用，那么它永远也不会损坏。
译注：“开琴”这种事情到底有没有好处是一个比较争议的话题，我这种布鲁斯年龄太小的人没有对这个的亲身体会。事实上我还没有一支口琴是被吹坏的。不知道有没有人做过实验，用一大堆一个牌子一个批次的口琴做对照分组，看看“开琴”到底有没有效果；或者用X光机或超声波什么的检查，“开琴”前后簧片的内应力分布是否有变化。

10、谁能给我发个 word 的英语合成词？

word +less =wordless 沉默的
word+play = wordplay 巧妙应答，双关语，说双关语
word+smith（创作家）=wordsmith 语言大师 语言艺术家