2. 祈使句的结构 ③ Let型(以let开头), 肯定句:[Let +宾语+V原形+其他成分] 否定句:[Don't+let +宾语+V原形+其他成分] [Let +宾语+not+V原形+其他成分] 例如: Let me help you 让我来帮你 Let me try. 让我试试看。 Let’s look at the map. 让我们看看地图。 ● let’s是let us的简略式。
read 1.You'd better______(read) the instructions first. 2.You should learn ____(learn) more about DIY. not put 3.You had better__________(not put) up a shelf above your bed. not be 4.You should _________(not be) late for school.
• She advised him to take a course in DIY. You should take a course in DIY.
You had better take a course in DIY.
should和 had better 都是情态动词,他们分别 与后面的动词原形一起构成句子的谓语,表示 不同的语气。
4. 表示请求、劝告的祈使句还常常在句 前或句末加上please, 构成句式: Please …或 …, please. 以使语气更加缓和 或客气。例如: Please stand up. 或 Stand up, please. 请站起来。 Please have a rest. 或 Have a rest, please. 请休息一下。