内容正文:
Unit 3 Could you please clean your room?
第三课时 (Grammar Focus4c)—单元同步语法精讲精练
eq \x(情态动词could的用法)
情态动词could构成的句型用于向对方提出请求或征求对方的许可,表示委婉的语气。
①委婉地请求别人做某事时用:Could you (please) do sth.?
此句型的肯定答语用:Yes,sure./Yes,I can./Of course,I can./No problem./With pleasure.等。
否定答语用:Sorry,I can't.I have to.../Sorry,I'm going to.../I'm afraid I can't.I have to...等。总之,答语没有固定的形式,但要符合上下文的语境。
eg:—Could you please make your bed?请你整理你的床铺好吗?
—Yes,sure.好的,当然可以。
②委婉地请求别人允许自己做某事时用:Could I do sth.?此句型一般不在I后加please。
肯定答语用:Yes,you can./Yes,please.等。
否定答语用:Sorry,you can't./I'm afraid you can't.等。
eg:—Could I go to the movies?我可以去看电影吗?
—Yes,you can.是的,你可以。
【注意】无论是Could you please...?还是Could I...?句型,其答语中一般避免使用could来回答。
一、单项选择。
1.—Could you help me put up the maps on the wall?
—____.
A.No problem B.I hope so
C.That's all right D.That's a good idea
2.—So many people!Could I stand here?
—____.Don't you see the sign “Line up,please”?
A.My pleasure B.No problem
C.Of course D.Sorry,you can't
A
D
3.—Cathy,could you come to our art club tomorrow?
—____.
A.I'm sorry to hear that B.Sure,I'd love to
C.Never mind D.You're welcome
4.—Could I borrow your camera?
—____,but please give it back by Saturday.
A.I'm sorry B.Of course
C.Certainly not D.No,thanks
B
B
二、按要求完成下列句子。
5.Do you let me go to the movies with Bill?(用could改写句子)
________ I ___ to the movies with Bill?
6.—Could you please turn down the TV?(作肯定回答)
—_________,_________.
7.—Could I play computer games,Mom?(作否定回答)
—____,______________.
8.Could you please open the door?(改为否定句)
Could you please _____________ the door?
Could
go
Sure/Yes
I can
No
you can't
not open
本课时其他知识点精讲精练
►【辨析】borrow,lend与keep
①borrow指向别人借东西,即“借入”。常用于词组borrow sth. from sb.或borrow one's sth.中。
②lend指把东西借给别人,即“借出”。常用于词组lend sth. to sb.或lend sb. sth.中。
③keep表示“借”,为延续性动词,通常和“for+一段时间”连用,表示“借某物多长时间”。
eg:—Can I borrow your notebook?我能借用你的笔记本吗?
—Of course,and I will lend you my textbook.You can keep it for two days.当然可以,我还会借给你我的教材,你可以借用两天。
►while连词,意为“当……的时候;在……期间”,表示在某一段时间里某动作或状态是