海南国科园实验学校九年级英语全册 Unit 4 Topic 2 When was it invented教学案(1).doc

unit 4 topic 2 when was it invented studying aims:1. whats it made offrom? its made offrom.2. i wish i cold go into space some day.3. i hope your dream will come true.4. when was it developed? around 1998.5. where was it developed? it was developed in korea.自学指导1.将下列单词短语中英互译，朗读并默写这些短语。 1. 金属,金属制成的_ 2. 牙刷_ 3. ink_ 4. recorder_ 5. 被允许做_ 6. 由制成(看得出原材料)_(看不出原材料)_ 7. 被用来做_=be used to do 8. 变成真的,实现_2. listen to 1a and answer the questions. (1) what is the rocket made of? _ (2) what is rocket used for? _3. 大声朗读下列句子，并背诵。 when was it developed? around 1998.where was it developed? it was developed in korea.思考：一般现在时的被动语态：amisare+动词过去分词；一般过去时的被动语态：_.课堂检测一. 根据语境及首字母提示，完成下列句子。(每空一词)1. dont let children play with a m_ knife, or they may hurt themselves.2. we should change our t_ once a month. its good for our teeth.3. i cant write anything with the pen. maybe there is no i_ in it.4. is that a radio? -no. its a r_. its more useful than a radio.5. -what is your sweater m_ of? -80% wool and 20% cotton.二. 句型转换1. we dont allow people to take pets into the park. (改为被动语态) people _ _ to take pets into the park.2. he often uses an mp3 player to listen to music. (改为被动语态) an mp3 player _ often _ by him to listen to music.3. the shopkeeper showed her a new style of dress. (同义句转换) the shopkeeper showed a new style of dress _ _.4. the cellphone was invented in 1973. (对画线部分提问) _ _ the cellphone _?5. digital cameras are used for taking photos. (对画线部分提问) _ _ digital cameras _ for?6. the bridge was built last year. (改为一般疑问句并肯定回答) _ the bridge _ last year? _, _ _. unit 4 topic 2 when was it invented?section bstudying aims:1. the radio was invented by gugliemo marconi in 1895.2. where were laptops invented? they were invented in japan.3. there is dna in most living things, including human beings.自学指导1.将下列单词短语中英互译，朗读并默写这些短语。1. clone_ 2. 实验_ 3. in peoples daily life_4. during his life_ 5. 毫无疑问_6. 使某人受益_ 7. 与相似_8. its said that_-课堂检测一. 根据语境及首字母提示，完成下列句子。1. can the scientists c_ any animal with dna?2. -where is dr. lee? -hes busy with an e_ in his lab.3. the light bulb was i_ by thomas edison.4. no d_ that computer is very important in our daily life.5. its s_ that edison invented more than one thousand things during his life.二. 句型转换。1. this kind of invention is not the same as a learning machine. this kind of invention is _ _ a learning machine. 2. people used the light bulb widely in the past. the light bulbs _ _ _ by people in the past.3. we launch spaceships to explore other planet. spaceships _ _ to explore other planets.4. the mp3 player was developed around 1998. (对画线部分提问)_ _ the mp3 player _ ?unit 4 topic 2 when was it invented?section c自学指导1.将下列单词短语中英互译，朗读并默写这些短语。1. 仆人，佣人_ 2. 家务活_ 3. 确切地_4. 受雇于,为效力_ 5. 为感到惊讶_6. 不再_=_ 7. think for onself_8. 以的方式对待,把看作_ 9. be meant to do_10. in the medical field_ 11. 为做贡献_2. read 1a and answer the two questions. (1) have robots caused us any problems for us so far?_ (2) what is the scientists worry? _课堂检测一. 根据语境及中文提示，写出单词或短语。1. in the past, the life of poor was hard. they had to work as _(佣人)for the rich.2. when he came back, his mother was busy with _(家务活)。3. our teacher always _us _ (以对待)his friend.4. the movie star becomes very famous. many people know him _ _(肯定)5. yuan longping _ _ _ _(为.做贡献) the rice planting.二. 句型转换。1. people hope there will be no longer a war in the word. (同义句转换) people hope there _ be a war in the world _ _.2. the man warned that the children shouldnt play with fire. (改为简单句) the man warned the children _ _ play with fire.3. the government will make new laws to deal with pollution in a few months? _ _ will government make new laws to deal with pollution?unit 4 topic 2 when was it invented?section c自学指导1.将下列单词短语中英互译，朗读并默写这些短语。1. 发现，查明_ 2. in .direction_ 3. 奏效_4. lose ones way=get lost_(lose过去式和过去分词都是_)5. 逃跑_ 6. 令某人惊讶的是_2. 剩余的时间_2. read 1a and answer the question. how did early explorers identify the direction? _课堂检测一. 把下列句子翻译成英文。1. 由于突然的大火，很少有人从高楼里逃离。_2. 只要我们多练习就会把英语说的很好。_3. 令大家惊奇的是，这个小男孩精通好几门外语。_4. 指导把剩余的工作都完成我们才离开。_二. 单项选择( ) 1. the wine is _ grapes. it tastes very nice. a. made of b. made from c. used for d. used as( ) 2. they went