Unit10 If you go to the party, you'll have a great time！知识点归纳

一、if 引导的条件状语从句

【考例】If____, I will go. A. he doesn't come B. he won't come C. he will come D. he is coming

if 引导的条件状语从句。If是连词，所连接的句子 叫条件状语 从句，表示假设或条件，意思是 " 如果...的话"，用法如下：

1、表示假设，表示将会发生和可能发生的事，或进行提醒警告。

if条件句：条件句用于陈述语气，表示假设的情况可能发生，其中 if 是"如果"的意思。

构 成

条件从句

主句

时 态 If＋一般现在时， 主语＋shall/will+动词原形 例 句 If he comes, he will take us to the zoo.

用法： (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如： If you go to the party, you will meet Uncle Zhang.

I'll ask the teacher for help if I don't understand. (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, we won't go there. 如果明天下雨，我们就不去那了。（3）若主句是祈使句，if引导的条件状语从句仍用____________时态。 Put up your hand if you have any questions to ask.

注意：宾语从句中的if与条件状语从句if的区别。宾语从句中的if"是否"相当于 whether，引导宾语从句，时态需根据语境确定。

如：I don't know if it will rain tomorrow. 我不知道明天是否会下雨。

2. 表示真实条件、客观真理、自然现象、定理定义、民 间谚语等，句型是：If + 句子 （一般现在时 ），+ 主句 （ 一般现在时）. 例： If you study hard ,you are sure to succeed . If you put ice in a warm place ,it turns into water .

针对练习：

( )1There is going to ______a soccer match next Sunday. If it ___, we'll have to cancel(取消) it. a. be; will rain b. have; will rain c. be; rains d. have; rains

( )2.If she ___harder, she will catch up with us soon. a. study b. studies c. will study d. studied

( )3.I don't know if he __________ to the party. If he _________, I'll tell you.

a. comes; comes b. will come; will come c. comes; will come d. will come; comes

( )4. If you don't go to the party this Friday, ____.

a. he will, too b. he won't, either c. he does, too d. he doesn't, either

二、用所给动词的适当形式填空

1. We ____________ (not go) for a picnic if it rains this Sunday

2. You may go swimming if you _____________ (finish) your homework.

3. They'll go hiking if it ____________ (not snow) tomorrow.

4. Your mother ____________ (be) angry with you if you don't do your homework.

5. I want to know if he ___________ (come) to the party tomorrow evening

6. Water park is a good place ___________ (have) fun.

7. Half the students ____________ (come) from countryside.

8. Half of her money ___________ (spend) on clothes.

9.- ---I feel hungry. ----why not ___________ (have) dinner with us?

10. If she ____________ (not take) a bus to school tomorrow, she ____________ (be) late

二、be doing, be going to do和will 在表示将来时的区别：

1．will/shall+动词原形 2、be going to do表示将来

【注意】"be going to do"和"will/shall+动词原形"区别在于，前者表示事先考虑好的意图，而后者则表示未经事先考虑的意图。 I am going to play games this afternoon./ It will rain tonight. 3.be doing表将来时 表示转移的动词leave, go, come, start等进行时态表将来的时候，时常伴有意图，安排或打算的含义。 She is flying to Wuhan tomorrow.

典型例题 I think I'm going to the dance with Karen and Ann. 我想我会和Karen and Ann一起跳舞。 what are you doing for vacation? 你假期里要做什么？ If you do, the teachers will call your parents.如果你那样做，老师们将给你们的父母打电话。

针对性练习：

1 __you __a doctor when you grow up? A Will; going to be B Are; going to be C Are; / D Will; be 2 I don't know if his uncle _____. I think he _____ if it doesn't rain.

A will come; comes B will come; will come C comes; comes D comes; will come

3 He will be back _____a few minutes. A with B for C on D in

4 What time _____we meet at the gate tomorrow? A will B shall C do D are

5 There __some showers this afternoon. A will be B will have C is going to be D are going to have

6 It ____my brother's birthday tomorrow. She _____a party.

A is going to be;will have B will be;is having C will be;is going to have D will have; is going to be

三：情态动词should 用法

should用来提出建议和忠告，后边加动词原形，否定句直接在should后边加not