北京初三(15册)英语课件.ppt

1、Lesson 16 It might be a tool for cutting things.,Unit4 Inventions and Inventors,Discuss,Can you name any famous inventors? What did they invent? Do you know any of their stories?,Thomas Edison 1847-1931,Benjamin Franklin 1706-90,Nobel 1833-1896,the Wright Brothers,Yuan Longping,American,1706,Lighten

2、ing rod,Benjamin Franklin,American,1847,Light bulb,Thomas Edison,Complete the table,Chinese,Hybrid rice,Yuan Longping,American,Plane,Wright brothers,1,2,3,Listen and number the objects,small, 7-8cm long,not big,long,different,For teachers to write on the blackboard.,plastic,For storing information a

3、nd music.,different,wool,for keeping you warm.,Listen and complete the table,mooncake,This is a kind of food. It is round. It usually with meat, eggs , nuts or something sweet inside. We usually have it on Mid-autumn Day.,summer,It is a season. It is very hot. We can go swimming in that season.,pump

4、kin,It is a kind of vegetable. It is big and round. The color is orange. It is sweet.,rabbit,It is a kind of animal. It is peoples friend. It is very lovely. It usually lives on the farm. It eats grass or carrot. It is white and the eyes are red,mountain,It is very high and big. There are many trees

5、 on it. It is a place to climb.,panda,It is a kind of animal. It is lovely. It is black and white. It lives in China.,tiger,It is a kind of animal. It is very dangerous, it usually eats meat. In China, it usually lives in the forest in Northeast.,Describe and guess,情态动词的可能性和确定性,当不是很确定时，用might或may. （

6、might比may更不确定） Who knows what will happen. You may even have married by then. It might be a tool for cutting things. I dont know. 当确定某件事是唯一的可能时，用must. It must be some sort of toy. 当确信不可能发生时，用cannot. It cannot be a radio because its too big to be a radio.,Complete the sentences with might be / maybe,

7、 cannot be, or must be,This exam _ too difficult for the students. I dont think they can finish it. It _ a book for children. There are many cartoons in it. It _ true. I think you made a mistake. Mr. Smith _ in London, Paris, or Tokyo. No one knows for sure. That _ John. He is in New York now. Did you hear the doorbell? It _ Nicholas. I am expecting him.,must be,must be,cannot be,might be /may be,cannot be,must be,Useful Expressions,hands up ask sb. to do have to do stop doing from then on be interested in on a rainy day like to do ask questions about one of be call