浙江省杭州市塘栖中学高中英语必修三:Unit4languagepoints教学课件.ppt

浙江省杭州市塘栖中学高中英语必修三:Unit4languagepoints教学课件.ppt

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Language points;religion n. globe n. violent adj. explode v. presence n. harmful adj. exist v.;1. It exploded loudly with fire and rock, which were in time to produce the water vapour…;;3. Water had also appeared on other planets like Mars but, unlike the earth, it had disappeared later.;be harmful to 对…有害 ;5. They multiplied and filled the first oceans and seas with oxygen .;6.This encouraged the development of early shellfish and all sorts of fish.;动词 ;8. It allowed the earth do dissolve harmful gases….;9. spread的用法 (1)vi. (消息等)传开,流传。如:;10. in one’s turn 轮到某人,接着 in turn 轮流地,依次地 take turns to do sth. 轮流做某事 It’s one’s turn to do sth. 轮到某人做某事;11. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. ;1. This is the best way I can think of _____ into dangerous areas. A. to prevent people getting B. preventing people getting C. stopped people getting ;;;Useful sentences 1. 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.  它将会变成什么没有人知道,直到38-45亿年前这团尘埃开始慢慢地合成一个固体的球状物。;2. The earth became so violent that it was not clear whether the shape would last or not. 地球(开始)变得激烈动荡,不知道这个固体形状是否会继续存在下去。;3. 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,随着地球的冷却, 地球的表面就开始出现了水。;5. It was not immediately obvious that water was to be fundamental to the development of life.;8. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. 在未来的千百万年中,生命能否在地球上延续将取决于这个问题能否得到解决。

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