Unit4 Astronomy:the science of the stars1. We usually think of science subjects as physics, chemistry, biology and mathematics. 2. When are they to hand in their plan?3. Whether we help him or not, he will fail.4. It exploded loudly with fire and rock, which were in time to produce the water vapour, carbon dioxide, oxygen, nitrogen and other gases, which were to make the earth’s atmosphere.它(地球)巨大的爆炸喷出了烈火与岩石,最终产生了水蒸气、二氧化碳、氧、氮和其他多种气体,从而形成了地球的大气层。5. It was quite different from what I expected.6. This made it possible for us to learn English better.7. Scientist believe that taking carbon dioxide from the atmosphere and filling the air with oxygen helped life to develop.科学家认为,从大气中吸取二氧化碳,并向空气中释放氧气,有助于生命的发展。8. He has experience as well as knowledge.9. They are putting too much carbon dioxide into the atmosphere ,which prevents heat from escaping from the earth into space.他们把太多的二氧化碳释放到大气层中,这使得热量不能从地球上散发到太空中。10. Whether life will continute on the earth for millions of years will depend on whether this problem can be solved.生命是否会在地球上延续几百万年要取决于这个问题能否得到解决。完整版资料添加老师微信(18780205961)获取!
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