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1、,情景对话 A： 1 2 the electric slippers 3 ？ B：They were invented last year. A： 4 5 they invented 6 ? B：Julie Thompson.,A： 7 8 they used 9 ? B：They are used for 10 in the dark. 答案：1. When 2. were 3. invented 4. Who 5. were 6. by 7. What 8. are 9. for 10. seeing,看图完成句子(1885, invented)Cars _ _ in 1885. 2. (
2、around 1827, invented）The TV _ _ around 1827. 答案：1. were invented 2. was invented,3. (1976, invented) The personal computer _ _ _ 1976. 4. (1971，invented)The hand-held calculator _ _ _ _ . 答案：3. was invented in 4. was invented in 1971,5. (1876, invented)_ _ was invented _ _ . 答案：The telephone; in 18
3、76,When was the car invented? 汽车是什么时候发明的？ (1)当动作的承受者作主语时，要用被动语态，其结构为“be+（及物动词）过去分词”。其中，一般过去时的被动语态的结构为“was/were+（及物动词）过去分词”。,(2)invent v. 意为“发明”；invention n. 意为“发明；发明物”；inventor 意为“发明家”。 Edison was a great inventor. He invented lots of inventions in his life. 爱迪生是一个伟大的发明家，他一生发明了许多东西。,The telephone _
4、in 1876. A. invented B. was invented C. was found D. was discovered 【点拨】选B。句意：电话是1876年发明的。invent “发明”，且telephone 与invent 之间是动宾关系，应用被动语态。故选B。,be used for 用来做 Light bulbs are used for seeing at night. 电灯泡是被用来晚上照明的。,English is widely used _ many people around the world _ a second language. A. by ；for B
5、. by; as C. as；for D. for；as,【点拨】选B。句意：英语被世界各地的许多人作为第二语言广泛使用。by 意为“被；由”，用于被动语态中，后跟动作的执行者；as作介词，意为“当作”。故选B。,. 用所给词的适当形式填空（5分钟，10 分） 1. Paper is one of the four great _ (invent) of ancient China. 2. The telephone was _ (invent) by Bell in 1876. 答案： 1. inventions 2. invented,3. The ice cream scoop is u
6、sed for _ (scoop) ice cream. 4. When water is _ (heat), we can see the steam. 5. The battery-operated slippers are _ (use) for seeing in the dark. 答案：3. scooping 4. heated 5. used,. 句型转换（5分钟，10分） 1. The personal computer was invented in 1976. (对划线部分提问)_ _ the personal computer _ ? 2. The battery-ope
7、rated slippers were invented by Julie Thompson. (对划线部分提问)_ _ the battery-operated slippers _ _ ? 答案：1. When was；invented 2. Who were；invented by,3. Knives are used for cutting things. (对划线部分提问)_ _ knives _ _ ? 4. A Chinese named Cai Lun invented paper. (改为被动语态) Paper _ _ _ a Chinese named Cai Lun. 答
8、案：3. What are ；used for 4. was invented by,5. She was interviewed by the local TV station last week. (改为主动语态) The local TV station _ _ last week. 答案：interviewed her,情景对话 Why, helpful，What，gives，invention A： 1 do you think is the most 2 invention? B：I think the most helpful 3 is the light bulb.,A： 4
9、is that? B：Well, it 5 people more time to work and play every day. 答案：1. What 2. helpful 3. invention 4. Why 5. gives,选词配图 microwave oven, alarm clock, light bulb答案：1. alarm clock 2. light bulb 3. microwave oven,What do you think is the most helpful invention? 你认为最有用的发明是什么？ (1)do you think作插入语，表示询问对
10、方的态度与看法。 (2)在特殊疑问句中要将do you think 置于疑问词后。,Who is the best student in your class ? Do you think? (合并为一句)_ _ _ _ is the best student in your class? 【点拨】Who do you think 在特殊疑问句中要将do you think 置于疑问词后作插入语。,. 用所给词的适当形式填空（5分钟，10分） 1. Many people think the computer is one of the most useful _ (invent). 2. I
11、 think the most _ (help) invention is the light bulb. 答案：1. inventions 2. helpful,3. In the future robots may give people more time _ (play) every day. 4. It would be _ (good) to have a computer than to have a radio with you if you were alone on a tiny island. 5. Some people think the alarm clock is
12、 the most _ (annoy) invention. 答案：3. to play 4. better 5. annoying,. 单项选择（5分钟，10分） ( )1. Which of these inventions _ the most useful invention? A. do you think is B. is do you think C. do you think D. you think is,( )2. If you have a/an _ with you, you could listen to music. A. alarm clock B. light
13、bulb C. radio D. calculator ( )3. Now computers _ all over the world. A. is used B. are using C. are used D. have used,( )4. I think _ invention is the telephone of these inventions. A. the helpful B. more helpful C. the more helpful D. the most helpful ( )5. What would you like _ if you are alone on an island? A. take B. bring C. have D. to have,
