高中人教版英语必修二同课异构课件：Unit 4 Section D Using Language.ppt

3. 根据专家的意见，他们马上放弃了这项试验。(according to) 4. 把它拿近点儿，让我好好看看。(so that) According to expert opinions, they gave up the experiment immediately. Bring it closer so that I can see it better. * Unit 4 Wildlife protection Dinosaur is an animal that we can not see on the earth now. What we see in the museum are the fossils of many kinds of dinosaurs. They were found by the people at home and abroad. Some dinosaurs have long necks and tails, while others look like birds. Using language Reading 1. When did dinosaurs live? Tens of millions of years ago. 2. When did dinosaurs die out? About 65 million years ago. 3. How did dinosaurs die out? A large rock hit the earth and put too much dust into the air. The earth got too hot to live on. True or false There are many different species of dinosaur and all of them have been found in China. Not long ago, a rare new species of bird-like dinosaur was discovered in Henan Province. several Liaoning F F 3. Some scientists are sure dinosaurs died out because the earth got too hot for the dinosaurs to live on any more. 4. Dinosaurs died out quickly about 65 million years ago and many animals have died out in the same way. F T think 1. They lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time. [点拨1] 本句是一个由and连接的并列句，其中，long before 引导时间状语从句，进一步解释说明tens of millions of years ago，意为“在……之前很久”。注意：before long 意为“不久以后”。 [点拨2] on the earth. 在地球上。在earth, sun, moon等表达世界上独一无二的名词 前, 要加the。 [点拨3] come into being的意思是“开始存 在;发生”。 我们不知道这世界是什么时候存在的。　　　　　　　　　　　　　　 We don’t know when the world came into being. 如： I knew Tom long before I knew you. 我在认识你之前很久就认识汤姆了。 We hope to finish our experiment before long. 我们希望不久就把实验做完。 It ___ long before we___ the result of the experiment. A. will not be; will know B. is; will know C. will not be; know D. is; know 拓展：before long 不久以后 2. When scientists inspected