《If you go to the party you'll have a great time!》PPT课件20

if 引导一个条件状语从句

当主句是一般将来时时(will+动原)，if 引导的从句必须用现在时(动词用动原或三单形式)来表示将来可能发生的动作或存在的状态。

If it is sunny tomorrow, we will go to the park.  如果明天天气好,我们就去公园。

If the rain stops tonight, 

we will go to the movies.

如果今晚雨停了，我们就去看电影。

If she is kind to me, I won’t argue with her.

如果她好好对我，我就不跟她吵。

... ... ...

Fill in the blanks using the correct forms of the words.

1.I’m sure if he ____ (go) to the party, he ____  (have) a great time.

2. I’ll buy a computer if I ___(have) enough money.

3. You ___ (not get) nervous if you __ (do ) enough exercise.

4. Please let us know if he ___ (arrive) tomorrow.

5. He’ll get better grades if he _______ (study ) hard.

6.We'll go for a picnic if it _______(not rain) this Sunday.

Read the conversation and answer the questions.

1. What will happen if we ask people to bring food? Why？

2. What will happen if we give people some small gifts if they win? 

... ... ...

Grammar focus

根据课本内容，完成下列句子。 

1. 我想我将会乘公共汽车去参加聚会。

I _____ I’ll take the bus to the ______. 

2. 如果你那样做，你将会迟到。

If you _____, _____ be late. 

3. 我想我将待在家里。

I _____ _____ stay at home. 

4. 如果你那样做，你将会觉得很抱歉。 

If you ____, ______ ____ sorry. 

5. 如果他们今天聚会，将会发生什么事？

_____ ___ _______ if they _____ the party today?

... ... ...

Grammar

含if条件状语从句的主从复合句

1. if 条件状语从句中，主句用一般将来时，从句用___________表示将来。________原则。

例如：We will go to the park if it _______ ______ (rain) tomorrow.

2. if 条件状语从句中，如果主句有must，can，may 等情态动词，从句用_________。 

例如：You must stop if the traffic light ____ (be) red.

3. if 条件状语从句中，主句是祈使句，从句用____________表示将来。________原则。

例如：Don’t wait for me if I _____ (be) late.

... ... ...

New words

upset  adj.   难过；失望；沮丧

e.g. Mom will be upset if I forget it again.     

如果我再忘记，我妈妈会失望的。

taxi  n. 出租车；的士

e.g. You’d better order a taxi. 

你最好提前预定一辆的士。

advice  n.  劝告；建议 （不可数名词）

e.g. Can you give me some advice?

能请你给我一些建议吗？

... ... ...

Fill in the blanks with the correct forms of the verbs in brackets.

Dear Su Mei, 

I don’t ______ (know) what to _____ (do) about going to Mike’s birthday party tomorrow night. My parents _____ (think) I should study for my English exam next week. If I _____ (go) to the party, they _______ (be) upset.

Mike ______ (tell) us to wear nice clothes, but I don’t ________ (have) any. If I _____ (wear) jeans, I _______ (look) the worst. Also, I’m not sure how to _____ (go) to the party. If I ______ (walk), it ________ (take) me too long. If I _______ (take) a taxi, it ______ (be) too expensive. Can you give me some advice please?

Tina 

... ... ...

Complete the sentences using your own ideas.

1. If I get up late tomorrow, ___________

2. If I don’t finish my homework, ______

3. If I don’t get enough exercise, _______

4. I will not have enough time to study if ______

5. I will not make any friends if _________

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