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1、Unit 4 Amazing Science Topic 1 When was it invented ?,Section A,is spoken by,She speaks Chinese.,is spoken by,He speaks English.,English,English.,He,him.,Chinese,Chinese.,She,her.,被动语态(Passive Voice ) be + done,主动语态: 主语 + 动词 + 宾语 被动语态: 主语 + be + 过去分词 + by + 宾语,Many people use computers.,Computers _
2、_ by _ _.,The workers plant trees in the garden.,Trees _ _ in the garden _ the workers.,are used,many people,are planted,by,Can you try ?,Exercise,1. Trees _ (water) in our school every three days. 2. The zoo _ (visit) by lots of children on weekends. 3. A Journey to West _ (show) on CCTV every summ
3、er. 4.On Christmas Day, children wake up early and cant wait _ (open) the boxes of presents. 5. Well have a chance _ (see) the flower show this weekend.,to open,is shown,are watered,to see,is visited,A: Whats the lock made of? B: Its made of metal. A: Whats it used for? B: Its used for locking the d
4、oor.,n.锁 v.(用锁)锁上,被锁住,2 Follow the example to make up similar conversations.,lock/metal,A: Whats the paper made from? B: Its made from wood. A: Whats it used for? B: Its used for writing on.,paper/wood,computer desk /wood,chopsticks/bamboo,sweater /cotton,watch/metal,be made of 由某种物质做成(看得出原材料,物理过程)
5、be made from 由某种物质制成(看不出原材料,化学过程) 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,1,2,Language points,A. Whats it made of? B. Its made of metal. A. Do you know what it is used for? B. Its used for sending satellites or spaceships into space.,Wow !A model rocket !,1a Listen
6、, look and say.,Why is Jane unhappy?,Because Jane was not allowed to play computer games last night.,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,聚焦一般过去时的被动语态 结构:助动词(was/were)+及物动词的过去分词 1.肯定句式 :主语+was /were+v.-ed 2.否定句式 :主语+was/were + not+v.-e
7、d 3.一般疑问句式: Was /Were+主语+vt.-ed 4.特殊疑问句式:疑问词W/H+was/were+主语+v.-ed E.g. An e-mail was sent to her friend by Jane yesterday. An e-mail wasnt sent to her friend by Jane yesterday. Was an e-mail sent to her friend by Jane yesterday? Who was the e-mail sent to by Jane yesterday?,Lets sum up together.,1b
8、Listen to 1a and mark T (True) or F (False).,Jane is unhappy because she was not allowed to go to a party last night.( ) Kangkangs father made a model rocket for him. ( ) The rocket is made of metal. ( ) A rocket is used for sending satellites or spaceships into space. ( ),F,F,T,T,1a Listen , look a
9、nd say,1c Read 1a and answer the following questions.,1. Why did Kankang ask Jane not to spend too much time on computer games ?,Its bad for her health if she spends too much time on them.,too tired,headache,sore eyes,2. Whats a rocket used for? Its used for sending satellites or spaceships into spa
10、ce .,be used for 被用来做 be used to do 被用来做 be used as 被用作 used to do sth. 过去常做 be used to doing sth. 习惯于做,3. Who taught Kangkang some knowledge about spaceships? Mr. Brown. 4. Whats Kangkangs dream? He wishes he 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
11、some day.,I hope his dream will come true .,come true-变成真的,实现 realize/achieve-make sth. come true,3a A. Listen to the conversations and number the following pictures.,2,3,1,3a B. Listen again and complete the table .,plastic,plastic,metal and plastic,study, work and play,communicate,take photos,arou
12、nd 1985,1973,around 1975,Japan,America,America,3b Work in pairs. Ask and answer questions based on the table in 3a with passive voice.,A: What is a laptop made of? B: It is made of plastic. A: Whats it used for? B: It is used for studying. A: When and where was it developed? B: It was developed in J
13、apan in 1985.,Example:,Focus on the meaning in communication. Dont be afraid of making mistakes.,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 _
14、_? 3.The digital camera was invented in 1975. (就划线部分提问) _ _ the digital camera _ ? 4. Maybe he is an inventor. (改为同义句) He _ _ an inventor.,am allowed to,What is,used for,When was,invented,may be,Exercises,Summary,We learn: 1.Some words: lock, rocket, metal, satellite, spaceship 2. Some phrases: be made of, be used of, some day, come true 3. Some sentences: (1) I wish I could go into space some day. (2) I hope your dream will come true. (3) -What is a rocket used for? -Its used for sen
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