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.

5. If you (work) hard, your dream will come true.

6. If she (study ) hard, she will go to Beijing University.

7. If it (rainy) tomorrow, I will play the piano.

8 If I (have) some money, I (buy) a new house.

9. I'm sure if he _____(go) to the party, he________ (have) a great time.

10. If the rain _______(stop) tonight, we will go to the cinema.

11. I'll buy a computer if I ______(have) enough money.

12. You _________(not get) nervous if you _____(do ) enough exercise.

13. If she ____ (be) kind to me , I __________(not argue) with her.

unless的用法

Unless 除非, 如果不

引导条件状语从句，含有否定意义，相当于if条件状语从句的否定形式。所以unless = if not。如：

Unless you take more care, you'll fall into the river

=If you don't take more care , you'll fall into the river.

如果不多加小心的话，你将会掉进河里。

My baby sister never cries unless she is hungry.

=My baby sister never cries if she isn't hungry

我那刚出生的妹妹除非饿了，否则她是从来不哭的。

Don't promise anything unless you're 100 per cent sure.

=Don't promise anything if you aren't 100 per cent sure.

不要作任何的许诺, 除非你有百分百的把握。

Unless bad weather stops me, I will run every day.

=If bad weather doesn't stops me , I will run every day.

除非坏天气作梗，每天我都跑步。

We'll be late unless we hurry up.

=we'll be late if we are not hurry up

我们要不加快些，就会迟到了。

You'll not pass the exam unless you work hard

= You'll not pass the exam if you don't work hard

除非你努力学习，否则这次考试你将不及格。

You'll miss the bus unless you walk more quickly.

= You'll miss the bus if you don't walk more quickly.

除非你走快一点，否则将赶不上公共汽车。

You won't hear anything unless you turn off the TV.

= You won't hear anything if you don't turn off the TV

除非你把电视关掉，否则你是不会听到任何东西的