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2. A person won't be able to send or receive any e-mail. His e-mail box is full.

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3. We have to grow trees because they can provide us with fresh air.

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4. I 'll show you a store. You may buy what you need there.

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5. The man is in the next room. He brought our text books here yesterday.

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思考为什么会有定语从句？

Man is different from animals. Man is good. That is reason. Mencius believed.

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二．先行词是地点、时间、原因，它的定语从句一定是where, when,why引导吗？

I know the reason he came late.

Is this the reason he explained at meeting for his carelessness?

思考：关系词怎么选择

根据意思区分：在（先行词）时间-------- 引导[

在（先行词）地点------- 引导

因为这个原因------------ 引导

在定语从句中，所缺成分翻译出来就是先行词的时候，选关系代词

根据语法区分：当引导词在定语从句中做状语的时候，应选关系

当引导词在定语从句中做主语或宾语时，应选关系

课堂检测：

　　1. Do you like the present I bought for you yesterday?

　　2. Tom has an English story book cover is handmade.

　　3. Children are not allowed to see such a film he described.

　　4. I have become good friends with several of the students in my school I met in the English speech contest last year.

5.There are times in our lives we have to make good choices to reach our goals.

A.where B.which C.when D. that

　　6.Look out!Don't get too close to the house door is on fire.

　　 A.whose B.which C.of which D. That

Homework:Students book p44,Activity 1\2\3