九年级英语Unit9 When was it invented教案

学习目标：

1．学会使用含有被动语态的不同句型结构“When/ Where was it invented?” 和“What are they used for?--- They are used for doing sth..”来谈论各种发明物的历史。 2．学习理解被动语态的含义。能够就不同的发明物与他人交流看法，发表自己的见解，并陈述理由。

3．了解到更多在世界上有重大意义的发明，并向那些伟大的发明家学习。 一、词汇 1．基础词汇

invent adjustable heel battery operate slipper scoop electric bulb microwave oven island sweet

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word salty crispy sour potato chip mistake thin chef sprinkle beverage thousand according ancient legend emperor boil fire leaf nearby remain

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word notice produce pleasant smell taste metal pie bakery throw special abacus century telescope camera term

2．重点短语

experience airplane India develop 二、日常用语

1. --- When was the car invented？

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word ---It was invented in 1985.

2. ---When were electric slippers invented？ ---They were invented last year. 3. ---Who were they invented by？

---They were invented by Julie Thompson. 4. ---What are they used for？

---They’re used for seeing in the dark. 三、知识讲解 Section A:

谓语动词的语态表示句子的主语和谓语动作之间的关系：

1）当句子的主语是谓语动作的执行者时，主、谓之间的关系称为主动语态； 2）当句子的主语是谓语动作的承受者时，主、谓之间的关系称为被动语态。 例如：

I teach English.（主动语态）我教英语。

Our English is taught by him.（被动语态）我们的英语是由他教的。 He speaks English.（主动语态）他说英文。

English is spoken in many countries all over the world.（被动语态） 世界许多国家都讲英语。

在被动语态的句子中，谓语部分的结构是be + p.p.（过去分词）。被动语态的句子有时态的变化，这个变化反映在be动词上。也就是说，把一个句子做成被动语态的句子，只

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word 需要写出be动词的所需时态，再加上所给动词的过去分词就行了。当然，这只是指谓语部分而言。我们知道，be动词作为一个的谓语动词有自己现在分词（being）和过去分词 （been）。那么，下面我们来看看be在各种时态中的变化形式：

一般现在时 am / is / are 一般过去时 was / were 一般将来时 shall / will + be 过去完成时 had + been 现在进行时 am / is / are + being 过去进行时 was / were + being 现在完成时 have / has + been 过去将来时 would / should + be 说明：

1）以上的八个时态可用于被动式，其它没有列举的时态都不宜用于被动语态的句子中。 2）另外，表中被斜线隔开的词表示根据具体情况作选择。弄清楚了be在各种时态中的变化形式以后，我们就能很轻松地写出被动语态的各种时态了。 我们可看看下面的实例：

English is spoken in many countries all over the world .（一般现在时） 世界上许多国家都讲英文。

Some TV sets for sale in the department store were stolen last night. 那家商场用来出售的部分电视机昨晚被盗。（一般过去时）

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word He won't be allowed, by his father, to marry Laura. （一般将来时） 他父亲不会让他娶劳拉为妻的。

They would be sent to the army when they finished the training. 他们结束训练时将被派往。（过去将来时）

The project is being carried out.（现在进行时） 这个计划正在执行中。

The case was being investigated then.（过去进行时） 那时这案子正在调查中。

This novel has been translated into several languages. （现在完成时）这本小说已被译成了几种语言。 They said that production costs had been reduced. （过去完成时）他们说生产成本已经下降了。 2. be used for 被用来做…

What is the book used for? 书是用来做什么的？ The book is used for reading. 书是用来读的 The plane is used for traveling. 飞机是用来旅行的 3. according to 根据，按照 4. in this way 这样

5. give sb. some time to do sth 给某人一些时间做某事. The teacher gives the student two hours to do homework.

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word 老师给同学们两个小时做作业。

6. help sb. do sth. 帮助某人做某事

I’ll help you leave the island. 我将帮助你离开岛屿。 7. by accident 偶然的 by mistake 错误的 8. fall into 落入，陷入

9. in the end= at last=finally 最后

10. make sb. adj. 使某人…make me happy 使我开心 11. sb. called\\named … 被叫作，被称作 a chef called Black. 一个叫布莱克的厨师 a doctor named Amy 一个叫艾米的医生

12. sprinkle a lot of salt on chips 在薯片上洒大量的盐 13. decide to do sth. 决定做某事

I decide to taste the hot tea 我决定品尝热茶。 14. not…until 直到…才

You can’t leave until I arrive. 直到我到了你才能走。

I can’t watch TV until I finish my homework. 到我完成作业，我才能看电视。 15. be discovered in 年代 be discovered in 地方

The tea was discovered in China in 1610. 茶是在1610年在中国被发现的。 16. over three thousand years 三千年以上

17. produce a pleasant smell 产生一股令人愉快的气味

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word 18. over an open fire. 在明火上

19. in sixth century 在第六世纪 in nineteenth century. 在十九世纪 练习：

一、根据开头字母，补全单词

1. Do you know who the puter was i _______by? 2. The seat belt on a plane are a _______.

3. It was a big m________ to leave my umbrella at home. 4. A c______ is a hundred years.

5. Boys, stop t_____ stones to the poor dog. 二、单项选择

1. The bridge __________ by the farmers themselves in 1982.

A. built B. was built C. build D. was build 2. All the books will _______ to the children who live in the small village. A. be sent B. sent C. be send D. send 3. Keys _______ used for ______ the doors.

A. is, opening B. is, opened C. are, opening D. are opened

4. My mother told me that my homework must _______ on time.

A. finish B. be finish C. be finished D. finished

5. The police found the lost car _______.

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word A. with mistake B. by accident C. by mistake D. in accident

6. I don’t like this kind of potato chips because they are not _______. A. crispy B. sweet C. soft D. sour 7. They decided _______ at the end of this month.

A. to leave B. going back C. travel D. not stat out

8. It’s used for _____ clearly in the dark.

A. seeing B. see C. looking D. look 9. When ______ the car ________?

A. did, invent B. was, invented C. does, invent D. in, invented

10. Jack ______ leave _____ his teacher es back.

A. doesn’t, until B. /, until C. won’t, / D. won’t, until 三、完型填空

I found out one time that doing a favor for someone could get you into a lot of trouble. I was in the eighth grade at the time, 1 we were having a final test. 2 the test, the girl sitting next to me 3 something, but I didn’t 4 . So I leaned over her way and found out that she was trying to ask me if I had an extra 5 . She showed me that hers was out of ink and would not write. I 6 to have an extra one, so I took it out of my pocket and put it on her desk.

Later, after the test papers had been 7 , the teacher asked me to stay in the room when all the other students were 8 . As soon as we were alone, she began to talk to me about what it meant to 9 up ；She mentioned how important

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word it was to 10 on your own two feet and be responsible（有责任感的）for your own acts. For a long time, she talked about 11 and emphasized(强调) the fact that when people do something dishonest(不诚实), they are really 12 themselves. She made me promise that I would think seriously about all the things she had said, and then she told me I 13 leave. I walked out of the room 14 why she had chosen to talk to me about all those things.

Later on, I found out that she thought I had 15 on the test. When she saw me lean over to talk to the girl next to me, it looked as though I was 16 something from the girl’s test paper. I tried to explain about the pen, but all she could say was it seemed really 17 to her that I hadn’t mentioned anything about the pen the day she talked to me right after the test. 18 I tried to explain that I was just doing the girl a 19 by letting her use my pen, I am sure she 20 to believe that I had cheated（作弊） on the test. 1. A. when B. while C. then D. and 2. A. During B. After C. Before D. For 3. A. showed B. asked C. whispered D. lost 4. A. listen B. understand C. answer D. find 5. A. pen B. pencil C. paper D. ink bottle 6. A. asked B. happened C. regretted D. wished 7. A. marked B. finished C. given out D. turned in 8. A. left B. disappeared C. stopped D. dismissed 9. A. stand B. grow C. bring D. rise 10. A. depend B. defend C. stand D. walk 11. A. tests B. students C. friendship D. honesty 12. A. enjoying B. cheating C. teaching D. helping

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word 13. A. should B. could C. would D. must 14. A. wondering B. realizing C. laughing D. believing 15. A. lied B. helped C. stolen D. cheated 16. A. copying B. borrowing C. asking D. searching 17. A. strange 18. A. Because 19. A. trouble 20. A. insisted

B. dishonest C. sorry B. If C. Until B. good C. harm B. tried C. continued 11 / 12

D. Although D. favor D. refused D. wrong word [参]

根据开头字母，补全单词

1. invented 2. adjustable 3. mistake 4. century 5. throwing 单项选择

1－5 BACCB 完型填空

1－5 DACBA

6－10 AAABD 6－10 BDDBC －15 DBBAD 12 / 12

16－20 AADDC 11