《Language in use》Problems PPT课件

Do you think they are happy at school?

Do you think she is happy at school?

Could you give her some advice?

Do you think they are happy when they play computer games?

Are their parents very worried?

Could you give the students some advice?

... ... ...

Language practice

用所给单词的适当形式补全对话。

1. If I _____(start) after dinner, I ______ (finish) it before I go to bed.

2. If you _____(do) these other things instead of your homework, you __________(not have) time to study.

3. He thinks something _______(go) wrong if I play games on it.

Grammar

If从句 (2)

一、引导条件状语从句最常用的连词是if，常见的if条件状语从句表示在某条件

下，某事很可能发生。

e.g. If you ask him, he will help you．

如果你请他帮忙，他会帮你的。 

If he does not work hard, he will fail his exams．

如果他不努力，考试就要不及格了。 

二、If从句的时态

1. if从句用一般现在时，主句用一般将来时。 

e.g. If he runs, he’ll get there in time. 

如果他跑着去，他就会及时赶到那儿。

2. if从句用一般现在时，主句用情态动词+动词原形。

e.g. She may come with us if she arrives in time.

如果她来得及时，就可以和我们一道去。

三、if 引导的条件状语从句位置灵活，可直接放在主句后面，也可以放在句首。放在句首时，从句后面要用逗号和主句隔开。

e.g. I’ll go to see you if I have time. 

如果有时间，我就去看你。

If it rains tomorrow, we’ll stay at home. 

如果明天下雨，我们就待在家里。

... ... ...

Exercises

1. If you ____ to the party, you’ll have a great time. 

A. will go    B. went    C. go     D. going  

2. I ______ her the answer if she _______me. 

A. can tell, will ask    B. will tell, will ask 

C. would tell, ask      D. will tell, asks 

3.-What are you going to do tomorrow? 

-We’ll go to the library tomorrow if it ______. 

A. isn’t rain        B. rain 

C. won’t rain      D. doesn’t rain

4. I’ll give the book to him if he _____ here next Sunday.

A. will come         B. comes   

C. is coming         D. came 

... ... ...

1 Rewrite the sentences with if.

Listen in class, or you will not understand what to do.

If you do not listen in class, you will not understand what to do.

1. Eat your breakfast, or you will get hungry at school.

If you do not eat your breakfast, you will get hungry at school.

2. Hurry up! You will be late.

If you do not hurry up, you will be late.

3. Read the book carefully. Then you will not make mistakes.

If you read the book carefully, you will not make mistakes.

4. Don’t watch too much TV, or your eyes will hurt.

If you watch too much TV, your eyes will hurt.

5. Work harder! You will get higher marks.

If you work harder, you will get higher marks.

... ... ...

1. -Would you like to go shopping with me,  Carmen?

-I’d love to, ____ you don’t want to go alone. 

A. until      B. before      C. if

2. You will be late for school ____ you don’t get up early. 

A. but         B. if

C. and        D. or

3. -Please give Alice the story book ____ you see her.

-All right.

A. unless        B. or

C. but            D. if

4. If the weather ____ fine, we ___ have a sports meeting this weekend. 

A. will be; will        B. is; will  

C. was; would

... ... ...

Homework

假设你是Lucy，你的笔友Mary给你写了一封信，告诉你她现在的问题，请你给她写一封回信，并给她提出你的一些建议。

Dear Lucy,

I am a good girl but I am not good at studying. I like watching TV so much that I can’t stop myself from watching it. 

My parents have tried their best to stop me watching TV too much. They argued（争吵）with me about it. I was so angry with them that I left home. The problem makes me very sad and I don’t know what to do. Can you help me?                                                                         

Yours,  Mary 

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