初中英语人教新目标 (Go for it) 版九年级全册Unit 6 When was it invented?Section A学案

Unit 6 When was it invented?

SectionA 2d&Grammar focus-4c导学案

【学习目标】

1．掌握下列词汇：project，pleasure，zipper，daily，have a point, bell，musical，instrument，biscuit，fridge，low。

2．根据所学内容，进一步学习运用一般过去时态的被动语态。

3．通过开展小组学习活动，培养协作意识。

【学习重难点】

1. 一般过去时态的句子变为被动语态。

2. 综合运用所学的知识进行练习运用。

【自主预习】

完成句子。

1. 拉链什么时候发明的？When _____  the zipper _________ ?

2. 1893年发明的。It   ___  _________ in 1893.

3. 它是谁发明的？  Who ______it ______ ___ ?

4. Whitcomb Judson发明的。It   ____   _____  ___Whitcomb Judson.

5. 茶什么时候带到韩国的？When  ___ tea ______ ____Korea？

6. 第六世纪和第七世纪间带到韩国。

 It  ____  ________ _____ Korea during the 6th and 7th centuries.

7.冰激凌加热勺是做什么用的？

What _____ the hot ice-cream scoop ______  ______?

8.它是用来盛真正冷的冰激凌的。

It____  _____ _____   ________ really cold ice-cream.

9.   Alexander Graham Bell 1876年发明电话。

【合作探究】

探究一: 完成教材2d的任务

1.读2d对话，并回答下面问题。

1).What is the subject for their school project?

2). What kind of invention does Roy think of?

3). Why does Roy think it is a great invention?

4). Who and when was the zipper invented?

5). When did the zipper become popular?

2. 读对话，并分组进行角色扮演。并在全班面前展示。

3. 根据对话完成下面短文。

      Do you know how small _________ changed the world? That’s the subject for my ______ ______. I want to introduce the _______. It is ______ a great invention ______ it is often ______ in our ______ _______. Zippers can ______ ______ _____ dresses,  ______ , shoes, bags, almost everywhere. I have seen on a ________ that the _________ of different inventions were ______. There it ________   that the zipper was invented _____ Whitcomb Judson in 1893. But it wasn’t used _________ at that time. In around 1917, it became ___________.

探究二 、语法精讲。

1．一般过去时的被动语态的构成

一般过去时的被动语态表示在过去某一时间发生的被动性动作，由“was/were＋及物动词的过去分词＋by＋动作执行者”构成，无须说明动作的执行者时可省略“by＋动作执行者”。如：

The flowers were watered by Lucy.这些花是露西浇的水。

The bridge was built in 1987.这座桥是在1987年建造的。

2．一般过去式的被动语态的基本句式

3. 使用被动语态的注意事项

(1)含有双宾语的主动结构变被动结构时，不要忽略间接宾语前的介词。如：

We gave some flowers to Miss Gao on Teachers' Day.

教师节那天，我们给高老师送了一些花。

→Some flowers were given to Miss Gao on Teachers' Day.

【注意】含有双宾语的主动结构变被动结构时，既可将间接宾语转化为主语，也可将直接宾语转化为主语。若将间接宾语转化为主语，则保留直接宾语；若将直接宾语转化为主语，则保留间接宾语，且在被保留的间接宾语前加上介词to或for。如：

My mother gave me a pencil.妈妈送给我一支铅笔。

→I was given a pencil by my mother.

→A pencil was given to me by my mother.

(2) 含有动词短语的主动结构变被动结构时，不要漏掉短语中的介词或副词。如：

We handed in our homework last Friday.上周五我们上交了家庭作业。

→Our homework was handed in last Friday.

(3) 在含有使役动词(make，let等)或感官动词(see，watch，notice，hear等)的主动语态的句子中，这些词后常跟省略to的动词不定式，但改为被动语态时要把省去的to还原。如：

I saw him cross the road and enter the shop.我看到他穿过马路进入了商店。

→He was seen to cross the road and enter the shop.

探究三： 完成4a－4c的任务