新人教版九年级英语上册unit6 when was it invented section a 第一课时课件

人教九年级英语 Unit 6,When was it invented?,Section A (1a- 2d),Do you know?,What are the Four Great Inventions in the ancient China?,Do you know when it was invented?,Who was it invented by?,毕升,Do you know when it was invented?,Who was it invented by?,1a Look at the things below. In what order doyou think they were invented? Discuss them with your group. Then number them 【1-4】(1= first, 4 = last).,I think the TV was invented before the car.,Well, I think the TV was invented after the car.,语法重点一,I think the TV was invented before the car. 我认为电视比汽车发明得早。 这是一个主从复合句，think后面跟了一个宾语从句。因为主句是一般现在时态，从句根据句意用了一般过去时态。（1）was invented意为“被发明”，此结构为一般过去时的被动语态。一般过去时的被动语态的结构为“was/were + 及物动词的过去分词”。如：These trees were planted last year. The car was bought yesterday.,（2）invent做动词，意为“发明，创造”，指发明以前没有的新东西。当物做主语时，常用被动语态。invention名词，意为“发明物”；inventor名词，意为“发明家，发明者”。如：Edison, a great inventor, invented many great inventions during his life. Many invention have been invented last year.,1b. Listen and match the inventions with the years.,_ 1876 _ 1885 _1927 _1976,1c. Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.,When was the telephone invented?,I think it was invented in 1876.,_ shoes with special heels,_ shoes with lights,_ hot ice-cream scoop,runs on electricity,2b. Listen again and complete the chart below.,2c. Make conversations using the information in 2b.,What are they used for?,Theyre used for,语法重点二,What are they used for? 它们是用来做什么的？ be used for sth. /doing sth.意为“被用来做某事”，表示用途或目的，后接名词或动名词，相当于be used to do sth。如：Clothes are used for keeping (= to keep) warm. Wood can be used for building (= to build) houses. The stick is used to write on the blackboard.,语法重点二,辨析：be used for ，be used as 与be used by,(2)be used as 被用作 , as是介词，意为“作为”，其后一般接名词，强调使用的工具或手段。 如:The box is used as a table by my mother. (3)be used by 被使用, by是介词， 意为“被,由”，后接动作的执行者。 如: The tools are used by the workers in the factory.,Hey Roy, the subject for my school project is “Small inventions that changed the world.” Can you help me think of an invention?,My pleasure! Let me thinkhmm I know! The zipper!,The zipper? Is it really such a great invention?,Think about how often its used in our daily lives.You can see zippers on dresses, trousers, shoes, bagsalmost everywhere!,Well, you do seem have a point,Of course! I thought about it because I saw a website last week.,The pioneers of different inventions were listed there.,For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893.,But at that time, it wasnt used widely.,Really? So when did it become popular?,Around 1917.,语法重点三,The pioneers of different inventions were listed there.不同的发明的先驱者都列在这里。pioneer 作名词，意为“先锋；开拓者；先驱”。如：He was a pioneer in the use of X-rays. I see everybody as a pioneer out there. 作动词，意为“开辟；首倡”。如：She pioneered the use of the drug.,小结训练,1. The telephone _ by a well-known scientist ,Edison. A. invented B. inventing C. was invented 2. English is used _ a second language _ people in many countries. A. as, by B. for ,by C. as, for 3. -What is the bottle used for ? -It is used _ hold the water.