1. “What/ How about+名词/代词或v-ing?”意思是“……怎么样?”.例如:
What/ How about a hot bath?洗个热水澡怎么样?
What/ How about playing football? 去踢足球怎么样?
2. “Let’s+动词不定式,shall we?”意思是“让我们……,好吗?”.例如:
Let’s go to a restaurant for a change, shall we ? 让我们去饭馆吃饭换换口味,好吗?
Let’s go out for a walk, shall we ? 我们出去散散步,好吗?
3.“ Shall I /we ?”意思是“我/我们……好吗?”.例如:
Shall I call him back? 我打电话叫他回来,好吗?
Shall we go home ? 我们回家好吗?
4. “Why not +动词+ ?/ Why don’t you +动词+ ?”意思是“为什么不……?/你为什么不做……?”.例如:
Why not e-mail him? =Why don’t you e-mail him?为什么不给他发电子邮件呢?
5.“You’d better(not) ”意思是“你最好(不)做……”.例如:
You’d better not watch TV when you’re doing your homework.
你做家庭作业时,最好不要看电视.
用should ,ought to,have to,must等情态动词提建议时,用should和ought to语气比较委婉、客气;用have to, must语气比较直率.例如:
You should finish your homework as soon as possible.
你应该尽快完成家庭作业.