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《机械原理作业集》第2版参考答案正版

机械原理作业集（第2版）

参考答案

（注：由于作图误差，图解法的答案仅供参考）

第一章绪论

1-1~1-2略

第二章平面机构的结构分析

2-1

2-2

2-3 F=1 2-4 F=1 2-5 F=1 2-6 F=1

2-7 F=0机构不能运动。

2-8 F=1 2-9 F=1 2-10 F=1 2-11 F=2

2-12 F=1

2-13 F=1 2为原动件，为II级机构。

8为原动件，为III级机构。

2-14 F=1，III级机构。

2-15 F=1，II级机构。

2-16 F=1，II级机构。F=1，II级机构。（第二次印刷蓝色版，III级机构）

第三章平面机构的运动分析

3-1

3-2（1）转动中心、垂直导路方向的无穷远处、通过接触点的公法线上（2）P ad

（3）铰链，矢量方程可解；作组成组成移动副的两活动构件上重合点的运动分析时，如果铰链点不在导路上

（4）、（5）相等

（6）同一构件上任意三点构成的图形与速度图（或加速度图）中代表该三点绝对速度（或加速度）的矢量端点构成的图形，一致；已知某构件上两点的速度，可方便求出第三点的速度。

（7）由于牵连构件的运动为转动，使得相对速度的方向不断变化。 3-3

13361331P P P P

=ωω 3-4 略

3-5（1）080m /s C v .=（2）0.72m /s E v = （3） ?=26°、227° 3-6~3-9 略

3-10（a ）、（b ）存在，（c ）、（d ）不存在。 3-11~3-16 略 3-17

第四章平面机构的力分析、摩擦及机械的效率

4-1

4-2

4-3 )sin )((

11212l l l

l l l f f V +++=θ

4-4 F =1430N 4-5~4-9略

32/95.110

s m v -==ωB v JI v

4-10 )

2()

2(ρρη+-=

b a a b

4-11 5667.0 31.110

==≤η?α 4-12 59.0=η 4-13 59.0=η

4-14 2185.0=η N Q 3.1029

7= 4-15 7848.0113.637==ηN F

4-16 KW P 026.88224.0==η 4-17 KW P 53.96296.0==η

4-18 ?α2≤ 4-19 F =140N

4-20 ?α?-<

第五章平面连杆机构及其设计

5-1

5-2（1）摇杆（尺寸），曲柄（曲柄与连杆组成的转动副尺寸），机架（连杆作为机架）（2）有，AB ，曲柄摇杆机构；AB ；CD 为机架

（3）曲柄与机架（4）曲柄摇杆机构、偏置曲柄滑块机构、摆动导杆机构（5）曲柄摇杆机构、摆动导杆机构；曲柄滑块机构（6）等速，为主动件（7） 7 （8）往复，且连杆与从动件（9）选取新机架、刚化搬移、作垂直平分线；包含待求铰链且位置已知（10） 9 ； 5 5-3 70 ＜ l AD ＜670 5-4~5-18 略

5-19 l AC =150mm l CD =3000mm h =279.9 mm

5-20 a =63.923mm b =101.197mm c =101.094mm d =80mm

第六章凸轮机构及其设计

6-1

6-2

6-3

（1）等加速等减速、余弦加速度、等速、正弦加速度、五次多项式（2）刚性、柔性

（3）理论廓线

（4）互为法向等距曲线

（5）增大基圆半径、采用正偏置

（6）增大基圆半径、减小滚子半径

（7）提高凸轮机构运动的轻巧性和效率、避免加速度过大造成冲击 6-4略 6-5

6-6 ~ 6-13略 6-14

6-15 6-16略

第七章齿轮机构及其设计

7-1

6858.708

2rad πδ?

='=?

≡====1803064.3432.1700min max 0δδαααmm

h mm r 6332

.343776

.51240-='='-=δy x

6395.185947.4060='-='=δy x

7-2

7-3（1）（2）

7-4 z = 41.45 7-5略

7-6 （1）（2） 7-7 7-8略 7-9 7-10 7-11略

7-12 （1）（2） (3) 7-13（1）（2）（3） 7-14略

7-15 7-16略

7-17 共有7种方案 7-18~7-19 略

21==z z 6.931517.5617115.377a b a s mm s mm

r mm

===634.1=εαmm

j mm

c mm

a t 77.269.494.15523.23='='='=α'

mm v mm L /490==刀294-==x z 8

.04.88==x z 9899

.482234117229.1142444153.44='

''=='==K K K

ρθα mm

r K K 3433.702444='

= α

8879.22α='mm r mm r 2.618.4021='='mm

d z mm

m 120304===5.0-=x mm

s 827.4=1.04711x =-

7-20

7-21 7-22 略

7-23正传动， 7-24~7-25 略 7-26（1）正传动

（2） 7-27 略 7-28

7-29 略

第八章齿轮系及其设计

8—1

8—2

8—3

（1

）从动轮齿数的连乘积除以主动轮齿数的连乘积、数外啮合次数或用画箭头的（2）用画箭头的

（3）有无使行星轮产生复合运动的转臂（系杆）（4）相对运动原理

（5）一个或几个中心轮、一个转臂（系杆）、一个或几个行星轮

（6）转化轮系中A 轮到B 轮的传动比、周转轮系中A 轮到B 轮的传动比、AB i 可以通过H AB

i 求解

（7）找出周转轮系中的行星轮、转臂及其中心轮（8）传动比条件、同心条件、均布装配条件、邻接条件

（9）传动比很大结构紧凑效率较低、要求传动比大的传递运动的场合、传动比较小效率较

0399

.02='x mm a 5892.90='mm r a 93.581=13.7291β=116.36v z = 2.6934

γε=2222(1)175(2)185163(3) 5.7106(4)112.5a f d mm d mm d mm

a mm

β=====

高、传递动力和要求效率较高的场合（10）差动轮系 8-4 8-5

8-6 8-7 8-8 8-9

8-10 8-11 8-12（a ）（b ） 8-13（1）（2） 8-14 z 2≈68 8-15 8-16 8-17 （1）（2） 8-18

8-19

8-20 m in /28.154r n B -=

8-21

只行星轮满足邻接条件

件，

只行星轮不满足邻接条34144803mm

l z H ==

8-22 162/108/5463

/42/2136/24/12321===z z z

第九章其他常用机构

9-1 9-2 9-3 9-4

s 075.0=2

==n k mm

l B 3=

8.658=?m in

/84r n =mm R 975.23=32143211'

=z z z z z z i H m in

/3r n H =N

F 64.308=5.141-=i 072

.016-=i m in /600r n H -=m in

/385.15r n H =31=H i 8

.11=H i 0

=H n min /667.653

197min /2min /340042r n r n r n A ≈===

m in /47.26r n c =m in

/1350r n c -=min /6349.06340

7r n ≈=

4286

.07

31-≈-=H i .

1533.433=i

第十章机械的运转及其速度波动的调节

10-1

10-2

10-3 2 05.050kgm J Nm M e er =-=

10-42

222

123341

(

)()e e z z J J J J m m e M M Qe z z =++++=- 10-52

0.14.20J kg m M Nm ==-

10-6 23

34.()

cos cos AB

r G l h J M G F g

φφ

=- 10-733

2.18221857e e J kgm M

Nm ==

10-811100/50/rad s rad s αω==

10-9

max

max min

min 3

0.048140.962/2 39.038/0,

2rad s rad s δω

φπ

=====

10-102

280.4730.388F F

J kgm J kgm '== 10-110

2max max 623.1/min

104.1654 2.11329F n r J kgm φ===

10-12

max max min

min 0.0638

1031.916/min 968.08/min

e b

n r n

r δφφφφ===== 10-132

6max

min 302F e

b f Nm J kgm ω

φωφ==→→

第十一章机械的平衡

11-1

11-2

11-3 2.109252.66o b b r cm θ==

11-412.31068.5227bA bB m kg m kg

11-5

11-6

11-7

11-8

）（2

）（2 ，）b ）（）（，）a ⅡⅡ　ⅠⅠ　ⅡⅡ　ⅠⅠ　上下动不平衡静平衡上下动不平衡

静平衡mr

r m mr r m mr r m mr r m b b b b b b b b ==

==o

Ⅱb Ⅱo b Ⅰgm W W W 90 84.08419 gm 0628.1Ⅱb 3Ⅰb ==='

==θθ0B 0

A 120 285.0 8584.260 285.0 8584.2======bA b

B bA bA kg m kgmm W kg m kgmm W θθb b 819.15 2.048 267.3512.98 1.283 118.44

b b b b W kgmm m kg W kgmm m kg I I I II II II ==θ===θ=

蒋静仪阅读教程2 课后习题答案（含quotations） Unit One Human Relationship 1. Interpretation of the quotations ①No man can be separated from the society and disconnected with other people as an island is isolated from the mankind. The inherent(内在的) oneness of mankind is just like a whole mass land. ②. when you deal with issues about yourself, try to be calm, reasonable and intelligent; but when you deal with issues about other people, you need to be affectionate, sincere and sympathetic. ③Here is an easy-to-follow, buy established and uncontroversial model for getting along with other people successfully. You just face and accept any serious misfortune or failure peacefully, as if it were something of litter significance or value; but never treat some ordinary, commonplace things as if they were extremely serious. Reference answers to the exercises Reading One: Check your comprehension 1-5 ADCCB Check your vocabulary 1.Fisher and Ury’s theory is based on the belief that the “win or lose”model does not work when two sides try to reach an agreement. https://www.wendangku.net/doc/ec18226449.html,e positive statements surrounding ideas that are negative. 3.You can often successfully resolve differences if you try this collaborative approach. Reading Two Check your vocabulary Resisted; frustration; fluttered; jerked; restless; haltingly; gratefully; thoughtless Reading Three Check your comprehension 1-7 FTFFTFT Check your vocabulary Administrative; meekly; hysterical; requisition; deposit; severe Confronted; spluttered; irate; bogus; purchase Reading four Check your comprehension 1-6 FTTTFT Check your comprehension 1.How often does this seriously affect people’s communication and make them fail in building

01. 她连水都不愿喝一口，更别提留下来吃饭了。 She wouldn't take a drink, much less would she stay for dinner. 02. 他认为我在对他说谎，但实际上我讲的是实话。 He thought I was lying to him, whereas I was telling the truth. 03. 这个星期你每天都迟到，对此你怎么解释？ How do you account for the fact that you have been late every day this week? 04. 他们利润增长，部分原因是采用了新的市场策略。 The increase in their profits is due partly to their new market strategy. 05. 这样的措施很可能会带来工作效率的提高。 Such measures are likely to result in the improvement of work efficiency. 06. 我们已经在这个项目上投入了大量时间和精力，所以我们只能继续。 We have already poured a lot of time and energy into the project, so we have to carry on. 07. 尽管她是家里的独生女，她父母也从不溺爱她。 Despite the fact that she is the only child in her family, she is never babied by her parents. 08. 迈克没来参加昨晚的聚会，也没给我打电话作任何解释。 Mike didn't come to the party last night, nor did he call me to give an explanation. 09. 坐在他旁边的那个人确实发表过一些小说，但决不是什么大作家。 The person sitting next to him did publish some novels, but he is by no means a great writer. 10. 他对足球不感兴趣，也从不关心谁输谁赢。 He has no interest in football and is indifferent to who wins or loses. 11. 经理需要一个可以信赖的助手，在他外出时，由助手负责处理问题。 The manager needs an assistant that he can count on to take care of problems in his absence. 12. 这是他第一次当着那么多观众演讲。 This is the first time that he has made a speech in the presence of so large an audience. 13. 你再怎么有经验，也得学习新技术。 You are never too experienced to learn new techniques. 14. 还存在一个问题，那就是派谁去带领那里的研究工作。(Use an appositional structure.) There remains one problem, namely, who should be sent to head the research there. 15. 由于文化的不同，他们的关系在开始确实遇到了一些困难。 Their relationship did meet with some difficulty at the beginning because of cultural differences. 16. 虽然他历经沉浮，但我始终相信他总有一天会成功的。 Though he has had ups and downs, I believed all along that he would succeed someday. 17. 我对你的说法的真实性有些保留看法。 I have some reservations about the truth of your claim. 18. 她长得并不特别高，但是她身材瘦，给人一种个子高的错觉。 She isn't particularly tall, but her slim figure gives an illusion of height. 19. 有朋自远方来，不亦乐乎？(Use "it" as the formal subject.) It is a great pleasure to meet friends from afar. 20. 不管黑猫白猫，能抓住老鼠就是好猫。(as long as) It doesn't matter whether the cat is black or white as long as it catches mice. 21. 你必须明天上午十点之前把那笔钱还给我。 You must let me have the money back without fail by ten o'clock tomorrow morning. 22. 请允许我参加这个项目，我对这个项目非常感兴趣。 Allow me to take part in this project: I am more than a little interested in it. 23. 人人都知道他比较特殊：他来去随意。(be free to do sth.) Everyone knows that he is special: He is free to come and go as he pleases. 24. 看她脸上不悦的神色，我似乎觉得她有什么话想跟我说。 Watching the unhappy look on her face, I felt as though she wished to say something to me. 25. 他说话很自信，给我留下了很深的印象。(Use "which" to refer back to an idea or situation.)

阅读教程2 Unit 1 Part I P7 I Reading for Information 1-6 A C D B C A P8 II Translation 1.有一百份卷子要批，而且全是男孩们用潦草的字迹写的，这事它已经拖了好几个星期了。这些日子，他一直觉得头上仿佛悬着把剑。 2. 我私下里已经花了一大笔钱来学音乐。 3.他的脸上挂满了汗珠。 4.没有哪个宣布判决的法官会比吃上的谢卡尔更痛苦、更无助。 5.说出事实和接受事实同样需要勇气。 P8 III Summary 1.sun, straight in the face, blinking, dazed. 2.morning , night, tempering truth, shock 3.truth, trials, wife, headmaster 4.apple pie, culinary masterpiece, good, swallow 5.fine, mean, selfish 6.singing, stupefied 7.frogs, buffalo, window shutters 8.strength, give, receive Part II P14 Answer the following questions.

1.Hell is not so terrible as most people think because it can be transformed into Heaven through hard work, courage, faith and love. The real hell is in one’s heart. 2.Heaven is a land of beauty and peace, and it is the result o our hard work. 3.all those hardworking people with courage and determination can rest in Heaven after they die, because although they cannot all reach Heaven in the first place, they can build hell into Heaven. 4.Those who are afraid of Hell and do not have courage to fight difficulties and disasters will end up in Hell. 5.This parable tells us that our destiny is controlled by ourselves. Part III P.16 True or False Passage 1 1-5 T F T F F Passage 2 6-10 T F T T F Passage 3 11-15 C B B B D Passage 4 16-20 C D B D C Unit 2

1、Don 'tlet the failure discourag y e ou.Try again. 2、He dropped out of college after only two weeks. 3、He spoke very highly of her. 4、Peter took advantage of his visit to London to improve his English. 5、The chairman agreed to conside r my suggestion. 6、The idea needs to be tried out. 7、The new road is a major government project. 8、This is our greatest and most encouraging progress; in short,a triumph. 9、The house has belonged to our family for a long time. 10、There was a pause in the talk when Mary came in. 11、We all look forward to your next visit to Nanjing. 12、She discovered that she had lost her purse. 13、The plane will land in five minutes. 14、It used to be thought that the earth was flat. 15、Everyone is fascinated by the singer 's amazing voice. 16、My parents are thinking of spending their holiday in France. 17、She's very modes t about her success. 18、Most plants require sunlight. 19、Be careful to your words when talking to elderly people. 20、Mother called again to make certain that the new air-conditioner would be delivered the next day. 21、I presented a bunch of flowers to Mrs.Link last Christmas. 22、Jack wrapped the gift in a piece of colored paper. 23、Shall I make the introduction?Robert,this is Julia. 24、My mom cleans the house every day and keeps everything in order. 25、This idea appeared in many books. 26、The People's Republic of China was founded in 1949. 27、When will the work on the highway be completed? 28、Oranges are my favorite fruit. 29、Hans Andersen created many lovely characters. 30、The business has expanded from having one office to having twelve. 31、Did you have fun at Disneyland last summer? 32、His lies brought to an end his friendship with Mike. 33、I'll help you as far as I can. 34、He had included a large number of funny stories in the speech. 35、These greenbelts protect 500,000 acres of farmland against moving sands. 36、The TV program is shown to call people's attention to water pollution in China. 37、 A soft wind caused ripples on the surface of the lake. 38、The children formed a circle around her. 39、My mother measured me for a new dress. 40、The park lies at the center of the city. 41、The train would pull out soon. We ran like mad to catch it. 42、My old grandmother has difficulty in remembering things. 43、The company employed about 100 men. 44、She checked the letter before sending it.

新视野大学英语（第2版）第4册Unit 1答案 III. 1. idle 2. justify 3. discount 4. distinct 5. minute 6.accused 7. object 8. contaminate 9. sustain 10. worship IV. 1. accusing... of 2. end up 3. came upon 4. at her worst 5. pa: 6. run a risk of 7. participate in 8. other than 9. object to/objected V 1. K 2. G 3. C 4. E 5. N 6.0 7.1 8. L 9. A 10. D Collocation VI. 1. delay 2. pain 3. hardship 4. suffering 5. fever 6. defeat 7. poverty 8. treatment 9. noise 10. agony Word building VII. 1. justify 2. glorify 3. exemplifies 4. classified 5. purified 6. intensify 7. identify 8. terrified VIII. 1. bravery 2. jewelry 3. delivery 4. machinery 5. robbery 6. nursery 7. scenery 8. discovery sentence Structure IX. 1. other than for funerals and weddings 2. other than to live an independent life 3. other than that they appealed to his eye . . ` 4. but other than that, he'll eat just about everything . 5. other than that it's somewhere in the town center X. 1. shouldn't have been to the cinema last night 2. would have; told him the answer 3. they needn't have gone at all 4. must have had too much work to do 5. might have been injured seriously XIII. 1 ．B 2.A 3.C 4.D 5. B 6.A 7.B 8.A 9. C 10.A II．D 12.C 13. D 14.A 15. C 16.D 17.B 18.C I9. A 20.D 新视野大学英语（第2版）第4册Unit 2答案 Section A Comprehension o f the text 1. He lived a poor and miserable life during his childhood. 2. Because no one in Britain appeared to appreciate his talent for comedy. His comic figures did not conform to British standards. 3. Because his dress and behavior didn't seem that English. 4. It was the first movie in which Chaplin spoke. 5. He used his physical senses to invent his art as he went along without a prepared script. 6. His transformation of lifeless objects into other kinds of objects, plus the skill with which he executed it again and again. 7. She brought stability and happiness to him and became a center of calm in his family. 8. Comic. Vocabulary III. 1. coarse 2. betrayed 3. incident 4. postponed 5. execute 6. surrounding 7. applause 8. extraordinary 9. clumsy 10. sparked IV. 1. for 2. against 3. up 4. about 5. up 6. to 7. down 8. down 9. in 10. on V. l. I 2.J 3.B 4.D 5.E 6.G 7.F 8.L 9.N 10.A Collocation
VI. 1. service 2. help/hand 3. influence 4. guarantee 5. visit 6. span . 7. welcome 8. spirit 9. duties 10. buildings Word Building

第二册第一单元一、单词 1.滑雪v 山n 2.海滩n 乘帆航行v 3.滑冰v 假期n 4.精彩的adj 父亲或母亲n 5.出行旅行n 家 ,家庭 6.有趣的adj 事业 n 7.日常的n 返回 v 8.滑到 v 犹豫 n 9.典型的 adj 家庭主妇 n 10.家庭杂物 n 自愿 v 11.火腿 n 第二单元一、单词 1.电影 n 国际互联网 n 2.体育馆 n 卡通片 n 3.流行音乐勇敢的 adj 4.伶俐的 adj 特别的 adj 5.轻松的，放松的 adj. 动人的，感人的 adj 6.爵士乐 n 动作电影 7.恐怖电影喜剧 n 8.脱口秀度过 n 9.摇滚乐 n 乐队 n 10.乡村音乐租用 v 11.订购 v 更喜欢 v 12.保持 v 二、短语，句子 1.你觉得电影咋样？ 2.在那时 3.我邀请朋友一起看电影。 4.我一小时又一小时的坐在电脑前。 5.总是坐在一台机器前是浪费时间的。 6.你上周末做了什么特别的事吗？ 7.没什么特别的。 8.你以前喜欢什么类型的音乐？ 9.我曾喜欢爵士乐。 10.你过去喜欢什么类型的电影？ 11.我曾喜欢动作电影。 12.你通常是怎么过周末的？四.用动词的适当形式填空. cook, stay, say, tell, visit, come, think, take, be, eat

Last Sunday it was snowy. Maria 1 at home. Her cousin Cara 2 to visit her. She came back from Beijing. She 3 Maria something about her vacation."It was pretty good," she said. Cara 4 the Palace Museum and the Great Wall. She 5 a lot of photos. It was lunch time. Maria's parents 6 not at home. They decided to cook by themselves. Maria 7 noodles with some tomatoes and pepper (辣椒). After Cara 8 up the noodles, she said slowly, “I think it is delicious!”But Maria 9 the food was too bad. She 10 ,“Cara, thank you, but I put too much pepper into it. 第三单元一、单词 1.有创造力的 adj 友好的，直爽的 adj 2.自信的 adj 助手 n 3.打字员 n 出纳员 n 4.幼儿园 n 面试 n&v 5.销售，经销 n 毕业 v 6.交流 n 流利的 adj 7.申请人 n 更有资格；更胜任 v 8.张贴 v 广告，公告 n 9.简历 n 尽早，尽快 10.空闲时间 n 集体自由讨论 v 二、短语，句子 1.能介绍一下自己吗？ 2.我在一年公司兼职销售员两年了。 3.你的优势是什么？ 4.我今天参加了一个面试。 5.到目前为止，我已经向六家公司递交了应聘申请。 6.在这个领域你有工作经验吗？ 7.你认为自己能胜任这份工作吗？ 8.我们在寻找兼职英语老师。 9.我在家很忙，很久没和外界联系了。 10.我试着去他办公室找他，但是他不在。三、用所给的动词的正确形式填空： 1. The boy __________________ (draw) a picture now. 2. Listen .Some girls __________( sing)in the classroom . 3. My mother ____________ (cook) some nice food now. 4. What _____ you ______ (do) now? 5. Look. They _____________( have) an English lesson . 6. They ____________(not ,water) the flowers now. 7. Look! The girls ____________(dance )in the classroom . 8. What is our granddaughter doing? She _________(listen ) to music. 9. Its 5 o'clock now. We ___________(have)supper now 10.______Helen__________(wash )clothes? Yes, she is 第四单元

《全新版大学英语阅读教程》 (通用本课后练习答案) 第二册 UNIT ONE The Pleasure of Learning Key to the Exercises I. 1. C 2. A 3. C 4. B 5. B II. 1. F 2. T 3. T 4. T. 5. F. 6. T III. 1.对于太多的人来说,学习似乎是自己的意愿屈服于外界的指引,是一种奴役. 2.然而,只要幸运,有决心,指导得法,人的精神不仅经得起贫穷而且经得起富裕的考验. 3.对一个人来说,形成完整和协调的人格与保持自身的卫生,健康以及经济上的自立是同样必要的,那些从来没有认识到这一点的人已经吃尽苦头. IV. 1. First of all , the writer points out that there is a mistake about learning. Some young people dislike learning simply because they are educated in the wrong way. Learning is a natural pleasure that should be enjoyed. Then he develops this idea by examples to illustrate the different aspects: learning from books, by travel and trough practice. Learning can expand one’s knowledge over a period of time. 2. The chief danger of learning is laziness, sloth, routine, stupidity. It sneaks into people’s mind like wind through the shutters, causing people to slowly give up learning. We should realize that learning is a life-long endeavor, and only by continuous learning can one gain a meaningful and rewarding life. Key to the reading—skill Exercises 1. Students have improved SAT scores. 2. Teenagers planned patrols 3. TV programs are less thorough than newspapers. 4. Welcome to Our City is about the South and its people 5. Some films show little children fascinated at the world. 6. One can communicate with the writer as one reads a book. with Santa Claus Key to the Exercises I . 1. A 2. D 3. C 4. A 5. C 6. B II. . 1. 朱莉让我们如此为难,我的确感到生气.难道圣诞老人不存在的事实不是从同学那里得知的吗 2.我给她讲述了事情的经过,尽量使它听起来滑稽有趣,希望她不要注意到我和杰里在处理我开始认为的"圣诞老人问题"上是如此拙劣. 3.我可以看出,他正努力在想一种办法,用来解释我们的行为,使其听起来不太像事实那样具有欺骗性,那样错误和愚蠢. 4.事情就这样结束了.对圣诞老人不存在的事实悲伤了片刻只后,生活又恢复了正常. III. 1. Santa Claus is an imaginary old man with a long white beard and a red coat.

【一】全新版大学英语综合教程1课后题 Unit 1 Growing Up Part II Language Focus Vocabulary Ⅰ.1. …down back and on in 2. been assigned to the newspaper’s Paris office. so extraordinary that I didn’t know whether to believe him or not. clear image of how she would look in twenty years’ time. the command the soldiers opened fire. bikes we’ll keep turning them out. 3. , rigid, to inspire tedious, What’s more, out of date ideas , career, avoid showing, hardly hold back Ⅱ. violating Ⅲ. , in upon Comprehensive Exercises Ⅰ. Cloze 1. back

and on out/in 2. Ⅱ. Translation 1. 1.As it was a formal dinner party, I wore formal dress, as Mother told me to. 2.His girlfriend advised him to get out of/get rid of his bad habit of smoking before it took hold. 3.Anticipating that the demand for electricity will be high during the next few months, they have decided to increase its production. 4.It is said that Bill has been fired for continually violating the company’s safety rules. /Bill is said to have been fired for continually violating the company’s safety rules. 5.It is reported that the government has taken proper measures to avoid the possibility of a severe water shortage. /The local government is reported to have taken proper measures to avoid the possibility of a severe water shortage. 2. Susan lost her legs because of / in a car accident. For a time, she didn’t know how to face up to the fact that she would never (be able to) walk again. One day, while scanning (through) some magazines, a true story caught her eye /she was attracted by a true story. It gave a vivid description of how a disabled girl became a writer. Greatly inspired, Susan began to feel that she, too, would finally be bale to lead a useful life. Unit 2 Friendship I. Vocabulary 1. Fill in the gaps with words or phrases given in the box. 1) absolutely 2) available

Unit1 Ways of Learning Vocabulary I 1. 1)insert 2)on occasion 3)investigate 4)In retrospect 5)initial 6)phenomena 7)attached 8)make up for 9)is awaiting 10)not; in the least 11)promote 12)emerged 2. 1) a striking contrast between the standards of living in the north of the country and the south. 2)is said to be superior to synthetic fiber. 3)as a financial center has evolved slowly. 4)is not relevant to whether he is a good lawyer. 5)by a little-known sixteen-century Italian poet have found their way into some English magazines. 3. 1)be picked up; can’t accomplish; am exaggerating 2)somewhat; the performance; have neglected; they apply to 3)assist; On the other hand; are valid; a superior II 1. 1)continual 2)continuous 3)continual 4)continuous 2. 1)principal 2)principal 3)principle 4)principles 5)principal III 1.themselves 2.himself/herself 3.herself/by herself/on her own 4.itself 5.ourselves 6.yourself/by yourself/on your own Comprehensive Exercises I.cloze 1.

Unit 1答案2版）第4册新视野大学英语（第4. but other than that, he'll eat just about everything . 5. other than that it's somewhere in the town center III. X. 1. idle 2. justify 3. discount 4. distinct 5. minute 1. shouldn't have been to the cinema last night 6.accused 7. object 8. contaminate 9. sustain 10. worship told him the answer 。2. would haveIV. 3. they needn't have gone at all 1. accusing... of 2. end up 3. came upon 4. at her worst 5. pa: 4. must have had too much work to do 6. run a risk of 7. participate in 8. other than 9. object to/objected 5. might have been injured seriously 1. 这种植物只有在培育它的土壤中才能很好地成长。Collocation The plant does not grow well in soils other than the one in which it has been VI. developed. 1. delay 2. pain 3. hardship 4. suffering 5. fever 研究结果表明，无论我们白天做了什么事情，晚上都会做大约两个小时2. 6. defeat 7. poverty 8. treatment 9. noise 10. agony 的梦。Word building Research findings show that we spend about two hours dreaming every night, VII. no matter what we may have done during the day. 1. justify 2. glorify 3. exemplifies 4. classified 有些人往往责怪别人没有尽最大努力，以此来为自己的失败辩护。3. 5. purified 6. intensify 7. identify 8. terrified Some people tend to justify their failure by blaming others for not trying their VIII. best. 1. bravery 2. jewelry 3. delivery 4. machinery 我们忠于我们的承诺：凡是答应做的，我们都会做到。4. 5. robbery 6. nursery 7. scenery 8. discovery We remain true to our commitment: Whatever we promised to do, we would sentence Structure do it. 连贝多芬的父亲都不相信自己儿子日后有一天可能成为世界上最伟大的5. IX. 音乐家。爱迪生也同样如此，他的老师觉得他似乎过于迟钝。1. other than for funerals and weddings Even Beethoven's father discounted the possibility that his son would one day 2. other than to live an independent life become the greatest musician in the world. The same is true of Edison, who 3. other than that they appealed to his eye . . ` 1 / 7 seemed to his teacher to be quite dull. sentence structure 当局控告他们威胁国家安全。6. They were accused by the authorities of threatening the state security. X. 1. it is a wonder to find