英语中的条件句分为真实条件句和虚拟条件句，而真实条件句大体分为两类：一类被称作 “零类条件句”，用来陈述事实或真理。这类句子翻译成汉语大多是 “如果……，就……”；另一类叫作 “第一类条件句”，用来谈论未来可能发生的事情，常见句式的汉语翻译是 “如果……，那就会……”。真实条件句的主句什么时候用一般现在时，什么时候用将来时？做下面的小测验，看你能不能清楚分辨英语真实条件句的用法。

1. If you want to pass your exams, you _______ lots of revision.

a) will do

b) will have done

c) need to do

d) will have

2. If I can upload the files, I _______ them to you by email.

a) send

b) will send

c) will be sending

d) will have sent

3. You will get fined if you _______ the speed limit on the motorway.

a) exceed

b) will have exceeded

c) are going to exceed

d) will be exceeding

4. If I don't set my alarm to wake up at 7am, I _______ to work on time.

a) won't have been

b) won't get

c) won't have got

d) won't be

5. If you don't hurry up and pack your suitcase, _______ our flight.

a) we'll have missed

b) we'd have missed

c) we'll have been missing

d) we'll miss

6. I'll take you with me to Cape Town - if _______ enough money this month.

a) I'll make

b) I make

c) I'll have made

d) I made

7. When I've installed the computer system, you _______ it right away.

a) can start using

b) will be starting to use

c) started using

d) will have started to use

8. When the sun is shining, people _______ usually in a better mood.

a) being

b) will be being

c) are

d) will be

答案

1) c, 2) b, 3) a, 4) b, 5) d, 6) b, 7) a, 8) c.