仁愛科普版八上英語Unit 2 Topic3 Must we exercise to prevent the flu Section B 同步練習(xí)（含答案）

Topic3MustweexercisetopreventthefluSectionB同步練習(xí)一、單項(xiàng)選擇1.

—Mustweexercisetopreventtheflu?—No,we______.A.mustn'tB.needn'tC.can'tD.shouldn't2.

You______watchTVtoomuch.It'sbadforyoureyes.A.shouldn'tB.mustn'tC.needn'tD.maynot3.

—Ineedtorelax.—Butyou______doyourhomeworkfirst.A.shouldB.couldC.wouldD.might4.

—Canyouhelpmewithmyhomework?—Sorry,I______.Ihavetodosomecleaning.A.can'tB.mustn'tC.shouldn'tD.needn't5.

Heisbusy.You______askyourclassmatesforhelp.A.shouldB.couldC.wouldD.might6.

I'msureI______finishmyhomeworkwiththehelpofthecomputer.A.canB.couldC.mayD.might二、用所給詞的適當(dāng)形式填空1.

Youneedn't______(come)ifyouarebusy.2.

Sheshould______(do)herhomeworkbyherself.3.

Wemustn't______(be)lateforclass.4.

Couldyouplease______(help)mewithmyEnglish?5.

Hemay______(go)totheparktomorrow.三、句型轉(zhuǎn)換1.

Youmustn'twatchTVtoomuch.(改為同義句)You____________towatchTVtoomuch.2.

Sheshoulddoherhomeworkfirst.(改為否定句)She____________herhomeworkfirst.3.

CanyouhelpmewithmyEnglish?(作肯定回答)Yes,____________.4.

I'msureIcanfinishmyhomework.(改為一般疑問句)____________sureyoucanfinishyourhomework?5.

Heisbusy.(改為同義句)He____________.四、根據(jù)漢語意思完成句子1.

你不應(yīng)該吃太多垃圾食品。You______eattoomuchjunkfood.2.

我們必須保持房間干凈。We______keeptheroomclean.3.

他可能今天下午來。He______comethisafternoon.4.

你能自己做這件事嗎？Canyoudoit______?5.

別忘了帶相機(jī)。Don'tforget____________yourcamera.答案與解析一、單項(xiàng)選擇1.

Bmust引導(dǎo)的一般疑問句，否定回答用needn't或don'thaveto，故選B。2.

Ashouldn't表示“不應(yīng)該”，“你不應(yīng)該看太多電視，對眼睛不好”，故選A。3.

Ashould表示“應(yīng)該”，“但是你應(yīng)該先做作業(yè)”，故選A。4.

Acan't表示“不能”，“對不起，我不能。我得打掃衛(wèi)生”，故選A。5.

Ashould表示“應(yīng)該”，“他很忙，你應(yīng)該向同學(xué)求助”，故選A。6.

Acan表示“能夠”，“我確信在電腦的幫助下我能夠完成作業(yè)”，故選A。二、用所給詞的適當(dāng)形式填空1.

comeneedn't是情態(tài)動(dòng)詞，其后接動(dòng)詞原形。2.

doshould是情態(tài)動(dòng)詞，其后接動(dòng)詞原形。3.

bemustn't是情態(tài)動(dòng)詞，其后接動(dòng)詞原形，be動(dòng)詞的原形是be。4.

helpcould是情態(tài)動(dòng)詞，其后接動(dòng)詞原形。5.

gomay是情態(tài)動(dòng)詞，其后接動(dòng)詞原形。三、句型轉(zhuǎn)換1.

shouldn'tbemustn't=shouldn't，“不應(yīng)該”。2.

shouldn'tdoshould的否定形式是shouldn't，其后接動(dòng)詞原形。3.

ofcourse肯定回答用ofcourse或sure。4.

Areyou陳述句中有be動(dòng)詞am，變?yōu)橐话阋蓡柧鋾r(shí)，I變?yōu)閥ou，am變?yōu)閍re并提到句首。5.

isbusy“isbusy”=“isn'tfree”，表示“忙”。四、根據(jù)漢語意思完成句子1.

shouldn't“不應(yīng)該”是shouldn