新课标人教版必修二Book2 Unit4 Using language.ppt

预****案答案: 、e into being 2. 在那时 at that time rare species unexpected incident in such a short time 6. There were many different kinds of dinosaur and a number of them used to live in China. 7. According to a UN report, some 844 animals and plants have disappeared in the last 500 years . 8. inspect vt. 检查;视察 9. unexpected adj. 没料到的;意外的 10. dust n. 灰尘;土 11. fierce adj. 凶猛的;猛烈地 Animal extinction Look at these pictures and answer questions: They ___________________a long time ago. disappeared /died out Q1:What are they? Q2:What happened to them? They are _________ dinosaurs What might be the reasons for their extinction? Guessing When did dinosaurs live? Tens of millions of years ago, long before humans came into being . When did dinosaurs die out? Fast Reading Fast Reading Fast Reading Dinosaurs died out suddenly about 65 million years ago. How did dinosaurs die out? Maybe that ’ s because a huge rock from space hit the earth and put too much dust into the air or because the earth got too hot to live on. Fast Reading Fast Reading Fast Reading Fast Reading Fast Reading Fast Reading True or false 1. There are many different species of dinosaur and all of them have been found in China. 2. Not long ago, a rare new species of bird-like dinosaur was discovered in Henan Province. a number Liaoning FF Careful Reading Careful Reading Careful Reading 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. FT think Careful Reading Careful Reading Careful Reading long before “很久之前”,引导______ 从句。 It will be long before + 从句(很久之后才…) It will (not) be long before + 从句(不久就....) 从句用一般现在时或一般过去时, 主句用一般将来时或一般过去将来时。 Language points 1. They lived on the earth tens of millions of years ago, long before humans c