2-2 答案 人大继续教育学院 大学英语2 作业答案
Exercise 2, Book 2
Part I Reading Comprehension (30%)
Passage 3
In the United States elementary education begins at the age of six. At this stage nearly all the teachers are women, mostly married. (80)The atmosphere is usually very friendly, and the teachers have now accepted the idea that the important thing is to make the children happy and interested. The old authoritarian (要绝对服从的) methods of education were discredited (不被认可) rather a long time ago – so much so that many people now think that they have gone too far in the direction of trying to make children happy and interested rather than giving them actual instruction.
The social education of young children tries to make them accept the idea that human beings in a society need to work together for their common good. So the emphasis is on co-operation rather than competition throughout most of this process. This may seem curious, in view of the fact that American society is highly competitive; however, the need for making people sociable in this sense has come to be regarded as one of the functions of education. Most Americans do grow up with competitive ideas, and obviously quite a few as criminals, but it is not fair to say that the educational system fails. It probably does succeed in making most people sociable and ready to help one another both in material ways and through kindness and friendliness.
11. According to the passage, the U.S. elementary education is supposed to make children ___.
A. sensible and sensitive
B. competitive and interested
C. curious and friendly
D. happy and co-operative
12. Some Americans complain about elementary schools because they think ___.
A. children are reluctant to help each other
B. schools lay too much emphasis on co-operation
C. children should grow up with competitive ideas
D. schools give little actual instruction to children
13. The author’s attitude toward American education can be best described as ___.
A. favorable
B. negative
C. tolerant
D. unfriendly
14. The American educational system emphasizes ___.
A. material wealth
B. competition
C. co-operation
D. personal benefit
15. The word “sociable” most probably means ____.
A. fond of talking freely
B. friendly with other people
C. concerned about social welfare
D. happy at school
答案：DDACB
Part II V ocabulary and Structure (30%)
16. The house is dark; the Browns ____ to bed.
A. may go
B. should go
C. should have gone
D. must have gone
17. This is a mistake which is typical ____ beginners.
A. for
B. of
C. to
D. with
18. There may be, somewhere outside the solar system, intelligent life ___ messages
to us.
A. sends
B. sent
C. sending
D. has sent
19. Please be sure to telephone me the next time you ____.
A. will come
B. would come
C. shall come
D. come
20. All the machines ___ repaired by the end of the following week.
A. were
B. will be
C. have been
D. will have been
21. He was very busy yesterday; otherwise he ___ come to the meeting.
A. would have
B. would
C. could
D. had
22. You can’t hear what I’m saying ___ you stop talking.
A. only if
B. unless
C. lest
D. except that
23. Sorry I can’t answer your question. I know ___ about the subject.
A. a little
B. some
C. little
D. few
24. I ___ get this done immediately or it will be too late.
A. must
B. can
C. may
D. might
25. He kept ___ working till he was seventy years old.
A. up
B. on
C. to
D. out
26. You ought to take every ___ of improving your English.
A. time
B. thing
C. chance
D. case
27. ___ from space, our earth, with water covering 70% of its surface, appears as a
“blue planet”.
A. Seen
B. Seeing
C. To be seen
D. Having seen
28. The novel ended happily, and the young couple were married ___.
A. in the final
B. in the end
C. to the last
D. in conclusion
29. The building ___ mostly undamaged after the earthquake, and only minor repairs
were necessary.
A. discovered
B. lasted
C. consisted
D. remained
30. He is an honest official and never ___ any gifts from people who sought his help.
A. received
B. accepted
C. expected
D. took up
31. He stood waving until the train was out of ___.
A. sight
B. glimpse
C. scene
D. reach
32. It is important to ___ people with respect and understanding.
A. treat
B. attend
C. care
D. touch
33. The preparation for the trip will be put ___ till next week.
A. out
B. over
C. off
D. up
34. Parking is a big problem, ___.
A. the traffic is so
B. is so the traffic
C. so the traffic is
D. so is the traffic
35. Nobody can be set in motion without a force ___ on it.
A. act
B. to act
C. acting
D. acted
36. I know a number of occasions ___ people died from water pollution.
A. how
B. as
C. when
D. where
37. Dirty water must not be ___ with drinking water.
A. joined
B. linked
C. mixed
D. combined
38. The main road through the city was blocked for three hours today after an accident
___ two buses.
A. containing
B. connecting
C. including
D. involving
39. Will you go to the meeting ___ visiting the museum?
A. or
B. and
C. to
D. instead of
40. Smith is to study medicine as soon as he ___ military service.
A. will finish
B. has finished
C. finish
D. would finish
41. If a metal bar is hearted, the greater the heat ___, the larger the expansion.
A. applied
B. being applied
C. applying
D. is applied
42. They did not discover until later ___ the car had been destroyed.
A. as
B. than
C. which
D. that
43. He has already made up his mind. It’s no use ___ him.
A. try to persuade
B. trying to persuade
C. to try to persuade
D. to try persuading
44. It is much easier to talk about social change than to bring it ___.
A. about
B. on
C. up
D. out
45. ___ seems easy in theory seems difficult in practice.
A. That
B. With
C. What
D. It
答案：CABDB AACDC CCDDB ADBAC
Part III Identification (10%)
46. One of the things she wrote about were life on a small farm at the beginning of the
century.
47. He went to the library and spent the whole afternoon there to look for material for an article on Shakespeare.
48. Hard as he worked, but Mr. Brown couldn’t keep the shop properly.
49. What he does, he always does it well, though he has some difficulties.
50. Either the brother or the sister will tell their father about what has happened.
51. How can I convince you of that we have almost used up our supplies?
52. She soon fell asleep being tired of walking all day long.
53. As quiet as possible he unfastened the door and went out into the frosty December night.
54. The rooms were then empty and most of them have been shut up.
55. I enjoy eating in good restaurants and to go to the theater afterwards.
Part IV Cloze
In most cultures, when you meet acquaintances for the first time during a day, it is normal to greet them. The main purpose of this greeting is to 56 a good relationship between the people 57, and each language usually has 58 set phrases which can be used for this purpose. Sometimes, though, there can be 59 differences in the type of phrases which can be used, and cultural misunderstandings can easily 60. The following is a true example.
A young British woman went to Hong Kong to work, and at the time of her 61 she knew nothing about the Chinese culture or language. 62 her way to school one day, she went to the bank to get some money. 63, the bank clerk asked her if she had had
her lunch. She was extremely surprised 64 such a question because in the British culture it would be 65 an indirect invitation to lunch. Between unmarried young people it can also 66 the young man's interest in dating the girl. 67 this bank clerk was a complete stranger 68 the British girl, she was very much taken aback (生气), and hastily commented that she had eaten 69. After this she 70 to school and was even more surprised when one of the teachers asked the same question. By now she 71 that it could not be an invitation, but was puzzled 72 why they asked it. 73 the following days she was asked the same question again and again. Only much later 74 that the question had no real meaning 75 -- it was merely a greeting.
56. A. build on B. build up C. build into D. build out
57. A. concerned B. concern C. concerning D. to concern
58. A. a number of B. the number of C. the amount of D. an amount of
59. A. considered B. considering C. considerable D. considerate
60. A. raise B. arise C. arouse D. lead
61. A. arrive B. arrived C. arrives D. arrival
62. A. In B. To C. By D. On
63. A. To her disappointment B. In her disappointment
C. To her surprise
D. In her surprise
64. A. on B. at C. to D. with
65. A. regarded as B. defined as C. looked as D. thought as
66. A. reflect B. intend C. release D. indicate
67. A. Since B. That C. Far D. With
68. A. with B. by C. to D. at
69. A. yet B. already C. too D. at all
70. A. processed B. produced C. provided D. proceeded
71. A. released B. relieved C. realized D. regretted
72. A. with regards B. as to C. as if D. as far as
73. A. In B. On C. At D. For
74. A. she discovered B. she did discover
C. did she discover
D. does she discover
75. A. above all B. after all C. in all D. at all
答案：BAACB DDCBA DACBD CBACD
Part V Translation
Section A
78. The scientists say that those gestures, movements and so on have meaning which words do not carry.
79. The length of time that the person whom you are speaking to looks at your eyes indicates the mount of interest he has in the things you are talking about.
80. The atmosphere is usually very friendly, and the teachers have now accepted the idea that the important thing is to make the children happy and interested.
Section B
81．她的工作是照看这些老人。
82. 学生应该在上课之前完成家庭作业。
83．这些老人养成了每天早上锻炼的习惯。
84．如果到处都太拥挤，旅行会令人很不愉快。
85．我不知道你那奇怪的想法来自何处。
81：Looking after the old is her job.
82：Students should finish their homework before class.
83：These old people have developed the habit of doing exercise every morning. 84：If it is too crowded everywhere，the travel will be very unpleasant.
85：I do not know where your strange ideas come from.
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Passage 1 1.2 2. 6 3.1 4.5 5.3 6.4 to Passage 1 again and rearrange the answers in the right column to match those questions in the left column. Ceahbgdf Passage 2 OC/O/C/O/C/C/O/C/O/OC to Passage 2 again and choose the best way to complete the sentences BDDBA Test CCBBD CDBCB C Unie 2 Outside view Activity 1 the video clip and match the speakers with the statements. K/K/T/S/T/K/S/K Activity 2
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新标准大学英语2答案
Unit 1 Outside view Activity 1 3.5 Activity 2 one of the best universities most talented students well-known around the world have open doors good social life you want it to be on another campus it's a fun place go to concerts during the week Activity 3 library system online three / 3 four / 4 Brian leisure purposes the libraries listening in Passage 1 1. 2 2. 6 3. 1 4. 5 5. 3 6. 4 2.Listen to Passage 1 again and rearrange the answers in the right column to match those questions in the left column. Ceahbgdf Passage 2 OC/O/C/O/C/C/O/C/O/OC
2.Listen to Passage 2 again and choose the best way to complete the sentences BDDBA Test CCBBD CDBCB C
Unie 2 Outside view Activity 1 1.Watch the video clip and match the speakers with the statements. K/K/T/S/T/K/S/K Activity 2 2.3.5 Activity 3 regarded along communicating But If during how as plays less LISTENING IN Passage 1 1.Listen to Passage 1 and match the colours with the characteristics
北航数值分析大作业第二题精解
目标：使用带双步位移的QR 分解法求矩阵10*10[]ij A a =的全部特征值，并对其中的每一个实特征值求相应的特征向量。已知：sin(0.50.2)() 1.5cos( 1.2)(){i j i j ij i j i j a +≠+== (i,j=1,2, (10) 算法： 以上是程序运作的逻辑，其中具体的函数的算法，大部分都是数值分析课本上的逻辑，在这里特别写出矩阵A 的实特征值对应的一个特征向量的求法： ()[]()() []()[]()111111I 00000 i n n n B A I gause i n Q A I u Bu u λλ-?-?-=-?-?? ?-=????→=??????→= ?? ? 选主元的消元 检查知无重特征值 由于=0i A I λ- ，因此在经过选主元的高斯消元以后，i A I λ- 即B 的最后一行必然为零，左上方变 为n-1阶单位矩阵[]()()11I n n -?-，右上方变为n-1阶向量[]()11n Q ?-，然后令n u 1=-，则 ()1,2,,1j j u Q j n ==???-。
这样即求出所有A所有实特征值对应的一个特征向量。 #include 数值分析第二次大作业 史立峰 SY1505327 一、 方案 （1）利用循环结构将sin(0.50.2)() 1.5cos( 1.2)() {i j i j ij i j i j a +≠+==(i,j=1,2,……,10)进行赋值，得到需要变换的 矩阵A ； （2）然后，对矩阵A 利用Householder 矩阵进行相似变换，把A 化为上三角矩阵A (n-1)。 对A 拟上三角化，得到拟上三角矩阵A (n-1)，具体算法如下： 记A(1)=A ，并记A(r)的第r 列至第n 列的元素为()n r r j n i a r ij ,,1,;,,2,1) ( +==。 对于2,,2,1-=n r 执行 1. 若 ()n r r i a r ir ,,3,2) ( ++=全为零，则令A(r+1) =A(r),转5；否则转2。 2. 计算 () ∑+== n r i r ir r a d 1 2 )( ()( )r r r r r r r r r r d c a d a c ==-=++则取,0sgn ) (,1)(,1若 )(,12r r r r r r a c c h +-= 3. 令 () n T r nr r r r r r r r r R a a c a u ∈-=++) ()(,2)(,1,,,,0,,0 。 4. 计算 r r T r r h u A p /)(= r r r r h u A q /)(= r r T r r h u p t /= r r r r u t q -=ω T r r T r r r r p u u A A --=+ω)()1( 5. 继续。 （3）使用带双步位移的QR 方法计算矩阵A (n-1)的全部特征值，也是A 的全部特征值，具体算法如下： 1. 给定精度水平0>ε和迭代最大次数L 。 2. 记n n ij n a A A ?-==][) 1()1()1(，令n m k ==,1。 大学英语QUIZ答案 Part 1 Fill in the Blanks (with the initial letters provided) (每小题：1 分) Directions: Fill in the blanks in the following sentences with the help of the first letter(s). Use only ONE word to fill in each blank. 1. I think, like all moderate people, that one step at a time is not a bad thing. (Suggested first letter(s): mod ) 2. moderate exercise such as walking is the answer for the gentleman to improve his health. (Suggested first letter(s): mod ) 3.This might reflect cultural differences as well as effects due to the type and quantity of food consumed by the mother. (Suggested first letter(s): cons ) 4. Not only do these factories consume more natural resources, they also produce more pollution. (Suggested first letter(s): cons ) 5.supplement to aid the digestive system. (Suggested first letter(s): supp ) 6.The secretary was looking for other jobs to 21 世纪大学英语读写教程（第四册）课后答案 TEXT A II 1.He defines greatness as the lasting contribution which a person makes or has made to human civilization. 2.The example of Churchill shows the importance of persistence and dedication in achieving greatness. 3.Firstborns and only children tend to make good leaders in times of crisis, but middle- born children are better peacetime leaders. 4.A 20th century politician should be an effective public speaker and a social person. 5.Intelligence seems to be less important than other factors, such as the ability to communicate effectively. 6.The ability to overcome traditional ways of thinking is also crucial. 7.They simply don’t devote the amount of time required. 8.The study showed that enjoying one ’ s work is the best form of motivation. 2 IV 1.chat 2.acknowledge 3.motivated 4.charcteristic 5.despite 6.influential 7.cited 8.obstacle 9.intrinsic 10.criteria 11.obsession 12.innate 13.contribution(s) 14.contemporary 15.submitted 16.morale V 1.left behind 2.rise 3.made history 4.were endowed with 5.put up with 6.going nowhere 7.ifocuses on 8.be built on 9.put in https://www.360docs.net/doc/9913663182.html,e up with 11.take charge 12.set...apart北航数值分析大作业第二题
大学英语QUIZ答案
21世纪大学英语(第四册)课后答案及课文翻译