新人教版高中英语必修三U4课文重点句汇集(3页).doc

-新人教版高中英语必修三U4课文重点句汇集-第 3 页新人教版高中英语必修三U4课文重点句汇集1. The origin of life on earth is a question that interests astronomers.地球上生命的起源是使天文学家感兴趣的问题。(P25)2. However,according to a widely accepted theory,the universe began with a "big bang"that threw matter in all directions.After that,atoms began to form and combine to creat stars and other bodies.然而，一种普遍为人们所接受的理论是：宇宙起源于一次大爆炸，这次大爆炸将物质投射到四面八方。然后原始开始形成并结合成恒星和其他天体。3. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. 。随后它会变成什么没人能知道，直到4538 亿年前，这团尘埃才慢慢地形成一个团体的球状物（凝聚成一个固体球体）。4. They were in time to produce carbon，nitrogen, water vapour and other gases, which were to make the earth's atmosphere. 他们（烈火和岩石）最终产生了碳，氮气，水蒸气和其他多种气体，从而形成了地球的大气层。5. What is even more important is that as the earth cooled down, water began to appear on its surface. 更为重要的是，地球冷却了下来，地球的表面就开始出现了水。(P26)6. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.很多科学家相信，由于地球上长期有水存在，使地球得以把有害气体和酸性物质溶解在海洋里。7. They multiplied and filled the oceans and seas with oxygen, which encouraged the later development of early shellfish and all sorts of fish. 它们繁殖起来，就使得早期的海洋充满了氧气，这为早期的贝类以及其他各种鱼类的发育进一步创造了条件。8. Why they suddenly disappeared still remains a mystery. 他们为什么会突然灭绝至今仍是个谜。9. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. 所以，在未来数百万年中，生命能否在地球上延续，取决于这个问题能否得到解决。10. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.他们把过多的二氧化碳释放到大气层中，这使得地球上的热不能释放到太空中去。11. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. 我的朋友李彦平是一位宇航员。上个月我有幸得到一个机会同他一起去太空旅行。(P30)12. Gradually the weight lessened and I was able to talk to him. 随后,这个力量'匮慢减小,我才能够同他讲话。13. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground. ""为什么太空船不会向后朝地球的方向落下去呢?在地球上的时候,如果我从树上掉下来,总会朝地上落下去的。"14. I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger. 我立刻感到很高兴,由于失重我在太空舱里飘来飘去,我望着(身后的)地球越来越小,而(前 方的)月球越来越大。15. I found I was carried twice as far as on the earth and fell over.(P31) 我发现我被送出去很远，步子的跨度竟是在地球上的两倍。as far as后省了I was carried,表示“（在飞船上）步子的跨度是在地球上的两倍。” 16. "Walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves. "重力改变了,看来走路也的确需要练一练了。"过了一会儿,我才掌握了走路的诀窍,这才开始感到自如了。17. We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased. Again we were pushed hard into our seats as we came back to land. 我们惊奇地看着,随着地球引力的增加,宇宙飞船的外层燃烧起火。当我们回到地面时,我们又感到被重重地推倒在座位上。(amazed 是过去分词,此处做伴随状语用. as引导时间状语从句)He came in unnoticed.他进来时没有人注意到。18. That was very exhausting but very exciting too, 真是精疲力竭了,但也很激动人心。Unit 4 Astronomy: the science of the stars workbook翻译1. 既然我们已经完成了设计，就该由公司来精心建设了。（now that; in ones turn）Now that we have finished the design, the company, in its  urn, will do the construction.2. 火灾没有造成太大损失，因为消防人员及时赶到了。（in time）The fire did not cause too much damage, because the firefighters arrived in time.3. 由于强大的引力，飞船被拖得离卫星很近。（gravity; pull; satellite; spaceship）The spaceship was pulled close to the satellite by its strong gravity.4. 沙尘暴导致了连锁反应，最后造成火车撞毁。（chain; reaction; crash）The sandstorm led to a chain reaction which ended in a serious train crash.5. 老师幽默的谈话让我们很振奋，班里的气氛也放松下来了。（atmosphere; cheer up）The atmosphere in the classroom relaxed after the teachers humorous talk cheered us up.6. 别打扰她。她昨晚刚生了一个男孩，现在还在睡觉。（give birth to）Dont disturb her. She gave birth to a boy last night and now she is asleep.7. 大部分证据都被毁了。因此，不可能证明这种药物是有害的。（harmful; thus）Most of the evidence is destroyed. Thus, its impossible to  prove that the drug is harmful.8. 云就是漂浮在空中的大片的非常细小的水滴。（float; mass）Clouds are masses of very small drops of water that float in the sky.