【荆州专版】Unit 3 Could you please clean your room 单元语法活学巧练 习题课件

(共13张PPT)
单元语法活学巧练　
Unit 3 CouId you please clean your room ？
必
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情态动词could的用法
一、表示能力
could为can的过去式。
eg:-Could you speak English when you were 4
years old 你4岁时会说英语吗？
一Yes,I could./No,I couldn't.是的，我会。/不，
我不会。
二、表示请求
l.Could you(please).. 常用于委婉地请求某人
做某事，后接动词原形。
eg:Could you please go with me 你能和我一
起去吗？
2.Could I please. 常用于委婉地请求别人允许
自己做某事或提议，后接动词原形。
eg:Could I go camping with my friends
next
morning 明天早上我能和朋友们去野营吗？
另外，表示礼貌请求的句型还有：
Would you like+sth./to do sth.
Would you mindsth./doing sth.
What/How about+sth./doing sth.
3.表示请求的问句的回答
肯定回答：Yes,you can./Sure./Of course./No
problem./I'd love to./Certainly./Yes,please.
It's OK./All right.
否定回答：Sorry,I'm afraid not./I'm sorry,you
can't./I'm sorry,but .../Of course not.
注意：无论是Could you please.？还是Could
I. 其答语中一般避免使用could。
[、单项选择
B )1.-Could I use your bike
-Yes,you
But you
keep it clean.
A.could;can
B.
can;must
C.
must;can
D.could;must
(A)2.(咸宁)-Mom,it's too hot..
I
swim in the lake with my friends
-No,you
That's too dangerous!
A.Could;mustn't B.Need;couldn't
C.Must;needn't
D.Should;can't