研究生科技英语阅读答案(5)

公共卫生取得了长足的进步made enormous strides in public health 从范围和后果上讲in terms of scale and impact 增强免疫harness the immune-priming effects 临床试验Clinical trials

肉眼不可见的invisible to the naked eye

数目是人体细胞的10倍outnumber human cells by about 10 to 1 在医院工作的人health-care workers

(2) To allow diverse economic sectors to coexist with state economy (3) no place can compare with their own hometown. (4) you are at risk of losing your driver’s license (5) more and more intriguing.

(6) the controversy has been settled.

(7) The government is making efforts to eradicate racial discriminating.

(8) In practical appraisal, the basic premise is to determine the value of the property. (9) The financial market system is being completed, and the distribution and utilization efficiency of social capital have increased steadily. (10) Only when we give full play to man's initiative can we make full use of machines to transform nature. (11) The era in which the Chinese people were regarded as uncivilized is now ended. We shall emerge in the world as a nation with an advanced culture. (12) Now a Bristol University dental scientist has discovered that a common bacteria responsible for tooth decayand gum disease can break out into the bloodstream and help blood clots to form. In turn these can cause heart attacks and strokes, which together cause more than 200,000 deaths in Britain every year. People need to be aware that as well keeping a check on their diet, blood pressure, cholesterol and fitness levels, they also need to maintain good dental hygiene to minimize their risk of heart problems.

IV. Cloze

1. to 2. significant 3. breast-fed 4. who 5. hypothesized

6. months 7. laboratory 8. rate 9.terms 10. revealed 11.overfeed

Unit 4

Is Time Travel Possible?

I. comprehension and Appreciation

1. What do you think about the opening of the text?

It is a very good one. After the introduction of his profession as a physicist and cosmologist, a solid ground for his being something of a dreamer is also established, which makes what he will tell us readers in the following sound reasonable.

2. If you want to see how time travel might be possible, what need you do? And how

many dimensions do all physical object have? And what are they?

We need to look at time at the fourth dimension as physicists do. All physical objects exist in three dimensions. They are width, height and length.

3. What example does the author use to make the 3 ordinary dimensions easier understood?

The author takes the everyday car travel as an example to make the 3 ordinary dimesions easier understood with the aim to an introduction about the expected dimension, that is, the fourth dimension.

4. How does the author like time travle movies?

According to his stereotyped ideas that time travel movies often feature a vast, energy-hungry machine which creates a path through the fourth dimension, a tunnel through time, in which a time traveller, a brave, perhaps foolhardy individual, prepared for who knows what, steps into the time tunnel and emerges who knows when, the author thinks that the concept may be far-fetched, and the reality may be very different from what is featured in the movies, but the idea itself is not that crazy. 5. Could portals to the past or the future ever be possible within the laws of nature? And what does the author call them?

According to the author, portals to the past or the future are possible within the laws of nature. He calls them wormholes, and he says the truth is that wormholes are all around us, only they're too small to see. Wormholes are very tiny. They occur in nooks and crannies in space and time.

6. How does the author justify his idea of wormholes?

He argues as follows: There are tiny crevices, wrinkles and voids in time. Down at the smallest of scales, smaller even than molecules, smaller than atoms, we get to a place called the quantum foam. This is where wormholes exist. Tiny tunnels or shortcuts through space and time constantly form, disappear, and reform within this quantum world. And they actually link two separate places and two different times. 7. Are time tunnels are big enough for a human to pass through? If not, why?

No, they are too small for a human to pass through for these real-life time tunnels are just a billion-trillion-trillionths of a centimetre across.

8. Are there chances that a giant wormhole could be constructed in space one day in the future?

Yes, there are. Theoretically, a giant wormhole could be constructed in space with the aid of given enough power and advanced technology one day in the future.

9. What does the author do to convince the readers to accept the problem of paradoxes, a well-known problem with time travel to the past?

He recreates a paradoxical situation in which a scientist uses the wormhole to shoot his earlier self for it vilate a fundamental rule that governs the entire universe - that

causes happen before effects, and never the other way around.

10. How does the author conclude his opinions about time travle?

He concludes that any kind of time travel to the past through wormholes or any other method is probably impossible, otherwise paradoxes would occur.

II. Vocabulary

1. shortcut 2. attentive 3. twisty 4. indulge in 5. emerge 6. far-fetched 7. wrinkle 8. capture 9. tricky 10. paradox

11. violation 12. transmitted 13. amplified 14. expanded 15. inflation

III. Translation 1.

(1) the fastest manned vehicle最快的人造交通工具 go more than 2,000 times faster达到该速度的2000倍

a tricky concept to wrap your head around需要你绞尽脑汁的抽象概念 fire the shot开枪

violate a fundamental rule …… 此处隐藏：4403字，全部文档内容请下载后查看。喜欢就下载吧 ……