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课件网) Module3 Unit4 Revision Astronomy: Astronomy: the science of the stars Words system, theory, atmosphere, carbon, oxygen, gravity; unlike exist, puzzle, pull, multiply; violent, fundamental, harmful Phrases in time, lay eggs, give birth to, in one’s turn, prevent...from, cheer up, now that, break out, watch out, block out Sentences This produced a chain reaction, which made it possible for life to develop. (L25,P26) 2) The earth became so violent that it was not clear whether the shape would last or not. (L8,P25) 3) Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. (L50,P26) Dinosaurs, which produced young by _____ eggs, survived on the earth for more than 140 million years. laying 1. At the meeting place of the Yangtze River and the Jialing River _____, one of the ten largest cities in China. A. lies Chongqing B. Chongqing lies C. does lie Chongqing D. does Chongqing lie 2.She was ill and _____ herself down in bed all day long. A. lay B. lied C. lies D. laid 3. If only he ____ quietly as the doctor instructed, he would not suffer so much now. A. lies B. lay C. had lain D. should lie lie 和lay的过去式和过去分词 A D C Dinosaurs, which produced young by laying eggs, survived on the earth for more than 140 million years. Mammals, who _____ young babies and produced milk to feed them, _____ on the earth after the dinosaurs were extinct. gave birth to existed 词组: come into existence/ come into being… 对这个问题有不同的观点。 1) There exist many different views on the matter. 2) Opinions on the matter vary from person to person. appeared After life came into being Discussion: What issues do humans bring to the earth? . Global warming . Environmental pollution . Overpopulation . Deforestation . Shortage of resources … If life will continue on the earth for millions of years to come will depend on if this problem can be solved.（改错） Issues on the earth 句型分析： 第一个whether引导的从句类型为主语从句 第二个whether引导的从句类型为宾语从句 What many scientists believe is that the earth may become too hot to live. （改错） on Whether whether 1. 我不知道能否留下. I can't tell _____ whether to stay./whether I can stay or not. I wonder _____ 2. 我想知道是否是好消息. His father is worried about whether he will lose his work. 3. 他的父亲担心是否会失去工作. 4. 他们是否能准时完成这项工作还是个问题. Whether they can finish the work on time remains a problem . 只用whether的几种情况 whether it's good news or not . 主语从句 引导词： 连词: that, whether； 连接代词: who/whom/whose/what/which/whoever等； （同宾语从句） 连接副词: when/ where/ how/why/whenever/however等。 （同宾语从句） 注：if不能引导主语从句 Subject clause ① Subject clause + verb… ② It + verb… + Subject clause 注：that不能省略 _____?he will be back depends on the weather. ?_____ price will go up is certain. _____ we go by train or by boat makes ... ...
