九上U4T2SA.ppt

1、,Unit 4 Amazing Science,Topic 2 When was it invented?,Section A,学习目标：,1.学习一些新单词及有用的短语； metal，toothbrush，ink be made of/be made from 2.学习一般过去式的被动语态； 3.谈论新科技及其新发明。,A: Whats this in English? B: Its a computer desk. A: Whats it made of? B: Its made of wood. A: Whats it used for? B: Its used for holding

2、a computer.,Look and learn.,A: How do you say this in English ? B: Its a piece of paper. A: Whats it made from ? B: Its made from wood. A: Whats it used for? B: Its used for writing on.,be made of 由某种物质做成(容易看出原材料，物理过程) be made from 由某种物质制成(不容易看出原材料，化学过程),Group work,Task1;Discuss and find out the dif

3、ferences between be made of and be made from.,be made up of 由几部分组成 be made in 在某地/某时制造 be made by 由某人制造 be made into 被制成 be used for 被用来做 be used to do 被用来做 be used as 被用作 be used by 被某人使用 used to do sth. 过去常做 be used to doing sth. 习惯于做,知识拓展,1,2,3,Task2:归纳made和 used的其他短语,toothbrush,Guessing games.,I

4、ts made of plastic. Its used for brushing teeth.,eg.,red wine,Its made from grapes. Its used for drinking.,ruler,Its made of steel. Its used for measuring with.,sweater,Its made of cotton. Its used for keeping warm.,bed,Its made of iron. Its used for sleeping on.,ink,Its made from carbon. Its used f

5、or writing in.,Its made of steel. Its used for sending satellites or spaceships into space.,rocket,1.Why is Jane unhappy? Because she isnt allowed to play computer games. 2. What does Kangkang show to Jane? A model rocket. 3.Whats it made of? Its made of wood.,Wow !A model rocket !,Look ,listen and

6、answer.,（录音p85-1a）,1.I am not allowed to play computer games.,allow v. 允许 1. allow sb. to do sth. 允许某人做某事 2. allow doing sth. 允许做某事 3. be allowed to do sth. 被允许做某事,key points,2.I wish I could go into space some day. some day-某一天,总有一天(将来) e.g. I wish I could have my own house some day. 3.I hope your

7、dream will come true. come true-变成真的,实现 realize/achieve-make sth. come true,Act out the dialog.,When was it developed? Where was it developed?,Listen and finish the table.,MP3 player,Around 1998,Korea,Improve our English,（录音p86-2a）,Match the pictures with their inventions.,2,1,3,3,1,2,Then make conv

8、ersations similar to 2a.,Make up dialogs according to the form.,A: What are you doing? B: I am A: Whats this? B: Its a (an) A: Whats it used for? B: Its used for A: When was it developed? B: It was developed in A: Where was it developed? B: It was developed in ,For example:,( )1.He _play computer ga

9、mes unless he finished his homework. A. was allowed to B. was not allowed to C. allow to ( )2.We all know that paper _wood. A. is made of B. is made into C. is made from ( )3.This kind of machine _in 2006. A. is invented B. is made C. was invented ( )4.A(An)_is used for taking photos. A .Camera B. L

10、ift C. MP3 player ( )5 .We should spend more time _because its too important. A .to learn English B. learning English C. in English,B,C,C,A,B,I.Choose the right answers. You can do it.,. Fill in the blanks with the right prepositions. 1.The desk is made _ wood. 2.The red wine is made _ grapes. 3.Thi

11、s delicious cake was made _my mother. 4.Glasses is made _ glass. 5.Our group is made up _ four students. 6.That kind of machine is made _ _Japan.,of,from,of,of,by,in,Lets sum up together.,Homework: Write a short passage about one of your favourite inventions.,.Change the following sentences. 1.My mother allows me to use her cellphone.(改为被动语态) I _ _ _ use my mothers cellphone. 2.A rocket is used for launching satellites and spaceships. (就画线部分提问) _ _ a rocket _ _? 3.The digital camera was invented in 1975. (就划线部分提问) _ _ the digital camera _ ?