1、条件状语从句：切记分清哪个是主句，哪个是从句，一般来讲跟在关联词if后面的句子是从句。当主句用一般将来时的时候，条件状语从句用一般现在时(即主将从现)，除关联词if引导的条件状语从句外，由as soon as, when, before等引导的时间状语从句也有此用法。 使用时要区别由if引导的宾语从句的用法。

3. The policeman told the children not to play football on the road.

Part Two：状语从句

主要考查条件状语从句、目的/结果状语从句、让步状语从句、时间状语从句、原因状语从句等。

2. The teacher told us to be careful

1. He asked me to move the car.

3. I asked Li Ming how I could use the computer.

2. Leon asked me how much money I had got.

1. Guy asked Meiling when she started acting.

2. He asked his teacher if/whether there was anything else he could do for him.

1. Jim asked if/whether I had finished my work.

3. Tom says he’s having a party at his flat tomorrow evening.