18) people 19) shaking 20) followed 21) before 22) stopped 23) a
24) listened 25) not 26) nodded 27) did 28) thought 29) but 30) order 31) was 32) answer
1) childhood 2) a slow start 3) mathematics 4) grew up
5) devote himself to research 6) world-famous 7) explain
8) you think it's two hours 9) the physical world 10) conquer 翻译
1) 那小女孩跑得太快，身体一下失去平衡，跌倒了。
The little girl ran so fast that she was thrown off balance and fell over / down.
2) 他致力于研究工作的精神 (devotion to research) 给我留下了很深印象，但我对他那些深奥的理论丝毫不感兴趣。
I was impressed by his devotion to research but I did not have the slightest interest in his profound theories.
3) 千万别说可能会被人误解的话。
Be sure not to say anything capable of being misunderstood.
4) 我被他们互相矛盾的意见搞糊涂了，不知如何去做才是。
I was so bewildered by their conflicting advice that I did not know how to act/what to do.
5) 起初，这个复杂问题使他们感到灰心丧气，但经过仔细思考后他们终于研究出了解决办法。
At first this complicated problem frustrated them, but after thinking it over carefully they finally worked out a solution.
6) 体育代表团团长在少先队员向他献上一束鲜花时愉快地笑了。
The head of the sports delegation beamed with delight when a young pioneer presented him with a bunch of flowers.
7) 这学期我们都学习得不错，我真不明白为什么我们的英语老师单单表扬了班长一个人。 I really don't see why our English teacher should single out our monitor for praise since we have all done quite well this term.
8) 我相信比较高级的| (higher) |动物是由比较低级的（lower)动物进化而来（develop from）的这一学说。
I believe in the theory that the higher animals developed from the lower ones.
Unit5
1)h 2)e 3)a 4)g 5)f 6)d 7)b 8)c
1)makes up 2)fraction
3) perspectives 4) from year to year 5) poisonous 6) liberate 7) crept
8) transparent
9) to make matters worse 10) consume 11) be replaced 12) interior
13) has disappeared 14) came about
1) has served as 2) may do harm to 3) makes up
4) convert them into 5) in all likelihood 6) from year to year 7) compete with for 8) is essential to
1) poisonous 2) joy
3) treacherous
4) religious 5) prosperous 6) spontaneous 7) humorous 8) mysterious 9) jealousy 10) curious 11) cautious 12) ridiculous 13) ambition 14) generous 15) virtue 16) error
1) fast-growing 2) fast-moving 3) good-looking 4) far-reaching 5) outstanding 6) ill-fitting
7) high-sounding 8) everlasting
1) ill-planned 2) well-paid 3) well-designed 4) well-read 5) newly-wed 6) well-meant 7) widespread 8) far-fetched
1) at first 2) firstly/first 3) First of all 4) first of all/first 5) firstly 6) first 7) at first 8) at first
1) A ballet dancer who does not practice every day loses a lot of skill, as does a musician.
2) Almost all the teachers at the training center were women, as were the majority of the learners. 3) The first lines gripped him; as did the next verse; and then the whole poem.
4) Isaac watched her winning smile, as did every man in the group.
5) Anyone accompanying a disabled person will be admitted to the meeting, as will guide dogs. 6) The second individual session began with a review of the homework assignment, as did all sessions.
1) It is believed that between 50,000 and 100,000 people in this country, who are free of symptoms, are likely to be carrying the HIV virus.
2) During this period, it is estimated that half a million people were killed in the communal violence that flooded the country.
3) When it is discovered that a substance harms woman's reproductive health, women of childbearing age are usually kept from jobs that might expose them to it.
4) Official figures give average class sizes as forty to fifty, but it is reported that in the rural areas there are often seventy to eighty children in a class.
1) apparent 2) disappear 3) pressure 4) widespread 5) collapse 6) alternative
7) does us no harm 8) tissue 9) liberate 10) visible 11) radiation 12) by itself 13) consume
14) in all likelihood
1) grow 2) hotter 3) seem 4) run 5) fall 6) melt 7) means 8) away 9) retreat 10) to
11) necessarily 12) possible 13) so 14) exist 15) gained
16) though 17) found 18) another 19) piled 20) stay 21) causing 22) flooded 23) farther
1) planet's 2) average 3) directly 4) temperature
5) too cold for most life 6) In fact, it is frozen 7) thick
8) hot enough to melt lead
9) The Earth absorbs most of the energy that reaches its surface and re-emits it as heat 10) In doing so, we are setting the stage for a warmer Earth 翻译
1) 如果富有的国家多花些钱搞绿色工业， 而不是去建立军事机器和制造核武器，当今许多广泛存在的污染问题将会逐渐消失。
If the rich countries spent more money on green industries, instead of on building up military machines and nuclear weapons, many of today's widespread pollution problems would gradually disappear.
2) 烧煤的时候，不仅消耗房子里面的氧气，而且还散发出有毒的气体。
The burning of coal not only consumes the oxygen in the house but also gives out poisonous gases.
3) 显然，找到替代能源对我们经济的稳定发展是至关重要的。
Apparently, finding alternative energy sources is essential to the steady development of our economy.
4) 太阳能电池（solar cell）能吸收阳光并把它变成电。 Solar cells can absorb sunlight and convert it into electricity.
5) 如果地球上的温度继续年复一年地上升，极地的冰帽将会开始融化，沿海城市中一半的建筑物很可能会消失在劈啪飞溅的海浪下面。
If the temperature on the Earth continues to go up from year to year, the polar ice caps will begin to melt and, in all likelihood, half of the buildings in coastal cities will disappear beneath splashing sea waves.
6) 因为这些生物很小并且常常躲在叶子茂密的植物下面，肉眼并不都可以看见。
Because these creatures are small and tend to hide beneath leafy plants, they are not always visible to the naked eye.
7) 由于受到原子辐射，他最终在工作时倒下了。
As a result of exposure to atomic radiation, he finally collapsed at work.
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