初二下册英语第三单元讲义unit-3-语法篇.doc

Unit3语法篇

could

v.aux.（助动词）

can的过去式

1.用来表示过去的能力、可能性或允许：

Icouldrunfasterthen.

Itcouldbenobetteratthattime.

Onlymencouldgototheclubinthosedays.

2.用来表推测或条件：

Icouldbewrong.

Ifwecouldhelp,wewould.

3.用于表示试探性或礼貌：

Couldyoucomeoverhere?

回答是注意不能再用could回答，应为yes，Ican/sure或sorry,Ican’t

1.——CouldIusethephone,MissLi?

——________.

A.Yes,youcould B.I’msorryIcan’t

C.Yes,sure D.No,please

2.——Couldyoupleasedothedishes?

——________.I’mgoingtodomyhomework.

A.Sorry,Ican’tB.No,Icouldn’t C.Yes,youcan D.Never

3.Wouldyouplease_______thechildren______withthesnake?

A.toask;nottoplay B.ask;nottoplay

C.ask;notplay D.ask;don’tplay

4.——CouldIlookatyourpicture?

——Yes,ofcourseyou_______.

A.could B.can C.will D.must

5.——Couldyoupleasepassmethesalt?

——________

A.Sure.Hereyouare. B.Goodidea.

C.Thankyou. D.I’msorrytohearthat.

一、单项选择（共10小题；共10.0分）

1.Imbusy.?youpleasehelpmemakethebed?

A.

Could

B.

May

C.

Must

D.

Should

2.?youpassmeapen?Idliketowritedownthetelephonenumber.

A.

Need

B.

Could

C.

Must

D.

Should

3.---?IborrowyourEnglishbook?

---Yes,ofcourseyou?.

A.

Could;could

B.

Must;can

C.

Could;can

D.

Can;could

4.---?youlendmeyourcamera?

---Noproblem.Hereyouare.

A.

Might

B.

Could

C.

Must

D.

Should

5.---CouldIgooutwithmyfriendstonight?

---?Butyoucantstayoutlate.

A.

No,youcant.

B.

Yes,youcan.

C.

Sure,youcant.

D.

Yes,youcould.

6.---CouldIgiveawaymyoldclothestothepoorchildren,Mum?

---Ofcourse,you?.Imreallyhappytohearthat.

A.

can

B.

could

C.

must

D.

cant

7.You?eattoomanycandies.Itsbadforyourteeth.

A.

must