人教版八年级英语上册 《If you go to the party you'll have a great time!》PPT课件14

《If you go to the party you'll have a great time!》PPT课件14

Discussion

If I eat snacks in the reading room,the assistant will stop me.

If I talk on the phone in the reading room,the others will be mad.

If I smoke in the reading room,the assistant must ask me to go away .

Summary

从句                               主句

1.If you are late,            you will say sorry.

2.If he eats more,           he will be fatter.

3.If you are happy,          clap your hands.

4.If you fight at the party, you must go out.

... ... ...

Read the sentences

I think I’ll take the bus to the party.  

If you do, you’ll be late.

I think I’ll stay at home.           

If you do, you’ll be sorry.

What will happen if they have the party today? 

If they have it today, half the class won’t come.

Should we ask people to bring food?  

If we ask people to bring food, they’ll just bring potato chips and chocolate.

... ... ...

Fill in the blanks with the words given.

1.The students will go to the Summer Palace if it ___________ (not rain) tomorrow.

2.If he _________(walk) to school, he’ll be late.

3.If she likes it, she __________ (read) it soon.

4.If you play computer games on weekdays, you _______ (be) tired.

(1)条件状语从句通常由连词if引导, 意为“如果、假如”, 

主句不能用be going to表示将来, 而应该用shall、will。

e.g. If you leave now, you are never going to regret it. 

 (错误) If you leave now, you will never regret it. (正确)

(2) if “如果”, 引导条件状语从句, 主句用一般将来时，

从句则用一般现在时，如：If it rains tomorrow, I shan’t climb the hills.

... ... ...

Exercise 

1.如果你不赶快走, 你就会迟到。

If you don’t go soon, you’ll be late.

2 .如果你爱你的父母, 你应当帮他们做做家务。

You should help do the housework if you love your parents.

3. 如果你更友善一些, 你会教上很多好朋友。

You will make lots of friends if you are more friendly.

Homework

1.Write five sentences with if structure.

2.Copy the sentences on PPT3 and translate them.

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