现代大学英语5--第六课课后练习答案(精)

1、 第六课 一、课文短语 in some cases in some instances, the pain goes away slowly. at the brink of at the point of scientists are at the brink of making a breakthrough in the treatment of cancer shot through with containing much of (a quality); suffused with sth. conversation shot through with humor. to tune i

2、n (to) (a channel) to adjust the controls of a radio. TV, etc. so that it receives a certaiprogram to tune in to the BBC World .Service tune in next week at the same time in a context in a circumstanee in which sth. happens or in which sth. is to he considered In the context of the present economic

3、crisis it seems unwise to lower taxes. to go over to sth. to change from one side opinion, habit, system, etc. to another two Conservative MPs went over to the Liberals to mess with sb./sth. (informl) to interfere with .sb. /sth. -Don* t mess with her; shes got a violent temper. to be burned at the

4、stake (formal) to be put to death by being tied to a post and burned -The old woman was accused of witchcraft and burned at the stake to out sth, into a Funk to cause .sb. /sth. a low mood -The setback put the project into several years funk. to flog a dead horse to waste ones effort on an activity

5、or a belief that is already rejected or has long been accepted; to argue on issue that is already settled tried to get Bob to come dancing with us, but it was like flogging a dead horse, because he said he hated dancing. 二、课后练习 第六课 vocaoulary A. Look up the following words and phrases. Select the me

6、aning that best suits the sentence in which appears 1 whatever occupies space and is perceptible to the senses in some way 2. being from another world 3. identifying characteristics or marks 4. deteriorated; disgraceful 5. to accept sth. in place of what is hoped for 6. common or hackneyed character

7、 7. (colloq) in betting a choice that has only a slight chance of winning and hence carries great odds against it 8. a small pond, (as in a garden) 9. containing formal and serious matter 10. to defeat (sb.) by reaching (a goal) first: Io win a competition, esp. over time IV. Questions on Appreciati

8、on A Organization 1. The piece can be divided into seven sections with main idea for each section; (1) Paras 1-2: the emerge nee of life (2) Para 3: (a transitional paragraph) what else is alive out there (3) Paras 4-10: search for life (4) Paras 11-23: search for intelligence (5) Paras 24-42: Mars

9、-(6) Paras 43-455: Dysons argument (7) Paras 46-51: conclusion 2. Study the paragraphs carefully and point out how smooth paragraph transition is achieved Paragraphs 3,8,21,28,35,39 Para 3: Para 3 is a one-sente nee paragraph for emphasis. It serves as a transit!on, leading to discusions about life

10、beyond earth. Para 8; Para 8 serves as another transit!on, moving from speculation to naming the field of research Para 21: The first .sentence of the paragraph is a tran sitional sente nee, leading to the Fermi parade and the four possibilities, and then to the exploration of Mars. That is, from as

11、sumption to explantion and exploration. Para 28: This paragraph serves as a transit!on from the previous idea of two-decade funk to the change of mood The last part of the last sente nee of the paragraph begi ns the shift to the new topic of meteorite Para35: This paragraph has a double duty; one is

12、 to develop the idea put forward by Gibs on; the other is to pave the way for Paras 36 and 37 by asking the two questions that will be answered in these two paragraphs. Para 39: posing questions at the end of a paragraph serves as transition. The question posed at the end of Para 39 serves this purp

13、ose and is expected to be answered in the following paragraphs B. Comment on the style of writing of the following statements, paying attention to structure, diction,tone, rhetorical devices, etc. 1. The three senten ces have a comm on contrasting pattern, by using ”and yet to introduce a contrast.

14、2、Note the framing of ideas in the sentenee. The succi nctn ess of the state me nt lies in the way the idea is formulated which is an expression difficult to imitate by non-native speakers and yet this is what they should aim at learning It is another example of chiasmus 3. The author is using the p

15、hrase full-scale invasion” in a humorous way, comparing the full-scale invasion . With one scientific instrument after another landing on the Mars,it is like the Ian ding of an invasion army. 4. The whole idea is contained in a statement with the following pattern: they dont wonder why they are. the

16、y wonder why they arent The author use negative and positive element in a reversed way in the two parts of this state me nt, which makes the ideas stand out and the sente nee more humorous 5. This is an inverted sente nee with purpose of smooth transit!on and emphatic effect, so that the word eviden

17、ce* which the author wants to stress comes at the end of the sentence and stands out. 6. What Lowell really said is a criticism of the wars and other conflicts among people (nations) on Earth. 7. The word ”alas” should have expressed sorrow, pity or regret. Yet the author here is using it in a mocki

18、ng way 8. There is a contrast in this sentence: fantastic triumph is pitted against a two-decade funk. The way the idea in the second half of the sentence is expressed is worth noticing. The author uses the absenee of detectable life but not the absence of life to show so far no life has been detect

19、ed The reason may be that the instrument only collected information about the surface 9. In version is used here for both better connection of the two sentences and emphasis 10. The author is being humorous when he says this seemingly minor deficiency*. 11 The author is being sarcastic here He means

20、 that humans have brains but with brains, there come wars, pollution, man-made disasters. In that case, the world may be better off if humans have had brains of our kind This is a bitter attack on human vices C There are a number of words concerning science formed with the following prefixes: extra-

21、, micro-, exo-, bio-, sub-, eco-, nano-, sub-, eco-, nano-, meaning of each of the prefix extra-; (1) outside; beyond (2) very; micr-: (1) very small (2) one millionth partexo-: external, outside or beyond; bio-: of living things; of (esp human) life; sub-; (1) under/ below (2) lower in rank (3) not

22、 quite (4) (to form a) smaller or less important part of eco-: connected with enviroment nano. one billion part of V Explain the following in your own words, bringing out any implied meanings 1 The fact that we do not have evidenee showing that there is life beyond Earth does not mean that we can co

23、me to the conclusion that there is actually no life beyond Earth. 2. .examining these planets to see if the surrounding atmosphere can be identified as fitting for life. 3. Those who are optimistic think that as time goes on, they will someday get the signal sent out by an alien civilization. 4. Ori

24、ginally, we regard our world as the only one in the universe which is inhabited by intelligent humans, but we need to change our view and regard this world as one of many in the universe 5. Neither those who genuinely believe that space aliens are lurking in our midst nor those who firmly reject suc

25、h an idea are likely to change their views and join the other side 6. The alien is a character used too much in Hollywood films so it has become hackneyed but the idea of extraterrestrial life was not first brought up by Hollywood 7. . the fact that no life had been detected on Mars was a terrible b

26、low to exobiology which did not recover from the blow in the following twenty years 8. Everyone knew that if what appeared to be microfossil.s were con firmed to be such, then the discovery would be of historic significanee; but if they proved to be something else, the adverse effect that followed would be equally dramatic 9. if evolution on Earth were to take place a second time, a human being who is genetically simila