科技英语部分课后练习答案
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Chapter 2
II.Give the description of the following sound segments in English.
1. [Ɵ] voiceless dental fricative
2. [ʃ]: voiceless postalveolar fricative
3. [ŋ]: velar nasal
4. [d]: voiced alveolar stop
5. [p]: voiceless bilabial stop
6. [k]: voiceless velar stop
7. [l]: alveolar lateral
8. [i]: high front lax unrounded vowel
9. [u:]: high back tense rounded vowel
10. [ɔ]: low back lax rounded vowel
III. Give the IPA symbols for the sounds that correspond to the descriptions below.
1. voiceless labiodental fricative: [f]
2. voiced postalveolar fricative: [Ʒ]
3. palatal approximant: [j]
4. voiceless glottal fricative: [h]
5. voiceless alveolar stop: [t]
6. high-mid front unrounded vowel: [i]
7. high central rounded vowel: [] 符号里没找到,就是在语音[U]上划一横
Main Content: UNIT 1 MATHEMATICS
I. Text Organization
Parts Paragraphs Main Ideas
Part One Paras. 1-3 Game theory can be defined as the science of strategy
which studies both pure conflicts (zero-sum games)
and conflicts in cooperative forms.
Part Two Paras. 4-11 There are two distinct types of strategic
interdependence: sequential-move game and
simultaneous-move game.
Part Three Paras.
12-19 The typical examples of game theory are given as the
basic principles such as prisoners’ dilemma, mixing
moves, strategic moves, bargaining, concealing and
revealing information.
Part Four Para. 20 The research of game theory has succeeded in
illustrating strategies in situations of conflict and
cooperation and it will focus on the design of
successful strategy in future.
II. Language Points
The games it studies range from chess to child rearing and from tennis to
大学英语精读第一册课后练习部分答案
Unit 1
Cloze
(A)
1. aware 2. performance 3. average 4. adequate 5. set aside 6. mentions 7.
look over 8. commit
(B)
1. if/once 2. about 3. it 4. know 5. up 6. as 7. from 8. words 9. into 10.
other 11. for 12. when
Translation
1、他这次考试的失败使他意识到定期复习功课的重要。
His failure in the exam has made him aware of the importance of reviewing
his lessons regularly.
2、请一定不要忘记离家前你父母对你说过的话。
Be sure not to forget what your parents said to you before you left home.
3、我确信她的英语知识对这项工作来说是足够的了。
I'm sure her knowledge of English is adequate for the job.
4、这篇文章的目的是告诉学生怎样培养良好的学习习惯。
The purpose of this article is to tell the students how to develop good
study habits.
5、在当今时代,人们越来越多地依靠计算机(computers)来解决各种各样的问题。
In our age, people depend more and more on computers to solve various
kinds of difficult problems.
6、略读不仅可以帮助你对将要阅读的东西有所了解,还可以帮助你读得快些,提高你的阅读理解力。
答案:
练习1:
1. A rocket is made of metal.
2. A battery is a device that gives a constant voltage.
3. What a good computer (it is)! How good a computer (it is)!
4. In a computer, the tendency is to operate as high a clock rate as possible.
5. A body must be made to move, or no work will be done.
6. This railroad is 6 times longer than that one.
7. Ordinary windows cannot withstand so large a force.
8. This value is one third what it was.
9. This is too complicated a problem for us to go into here.
10. It will take a computer half an hour to solve this problem.
练习2:
1. We obtained this result with great ease.
2. There are many instruments in common use.
3. Forces are measured in newtons.
4. The concept of gravity will be introduced in the next section.
5. Of the first three chapters, the first one introduces nuclear energy.