If 引导的条件状语从句
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. 如果主句是一般将来时,从句则用一般现在时。
If it rains(从句), I will stay at home.
I’ll go with you if you don’t want to go alone(从句).
2. 如果主句含有must, may, can 等情态动词,从句也要用一般现在时。 If you drive too fast, you may have an accident.
You must stop if the traffic is red.
3. 如果主句是祈使句,从句同样要用一般现在时。
Don’t go and play football if you don’t finish your homework.
Please call me if he comes next Sunday.
4.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 +句子(一般现在时),主句(主语will/may/can) +动词)
If you finish your homework , you can go out and play.
If I have enough money next year , I will go to travel .
5.下列从句中的will不是将来时助动词,而是情态动词。翻译为“愿意”
If you will excuse me,I really must go to bed . 如果你能原谅我的话,我真的要睡觉了。
If you will wait a minute ,I’ll go and tell my mother that you are here . 如果你愿意等一会的话,我去告诉我妈妈你来了。
试比较下列句子:
If you see him tomorrow ,give him this book . 如果你明天去看他,给他这本书。
If you will see him tomorrow ,give him this book . 如果你明天愿意去看他,给他这本书。
练一练:
1。如果你请求他,他会帮你的
If you ___him, he ___ ____you
2。如果她早点儿起床,就有时间在家里吃早餐
If she____ ____a little earlier, she’ll have time to eat breakfast at home.
3。如果你参加聚会,你将会过得很开心。
If you____ the party ,you_____ ____ a great time.
4。如果明天下雨,我们将不去野餐
If it ____tomorrow, we _____ _____ for a picnic.
5。如果你经常听英文歌,你将会喜欢英语
If you often _____ ____English songs,you___ ___English.
答案:1.ask,will help 2.gets up 3.join; will have
4.rains; will go 5.listen to;will like
联系客服