祈使句表示命令、要求、请求或劝告等,一般以动词原形开头,无时态及数的变化,句末用句号或感叹号
一、考查祈使句的一般形式
其特点是句首用动词原形,句前或句后可加 please以使语气更加客气
[考例]_____ at the door before entering, please
Knocked B
To knock C
Knocking D
Knock 二、考查“祈使句+and/then+陈述句” 结构
该结构相当于一个 if 引导的肯定的条件状语从句
如:Work hard,and/then you'll be successful in time
(=If you work hard, you'll be successful in time
) [考例]____ straight on and you'll see a church
You won't miss it
Going C
If you go D
When going 三、考查“祈使句+or+陈述句” 结构
该结构相当于一个 if 引导的否定的条件状语从句
如:Hurry up,or you'll miss the bus
(=If you don't hurry up, you'll miss the bus
) [考例]Start out right away, _____ you'll miss the first train
while [考例]Let's keep to the point or we ____ any decision
will never reach B
have never reach