4.1 Welcome to the unit-九年级英语下册单元同步课时重点练（牛津译林版).docx

Unit4LifeonMars

Welcometotheunit

一、根据句意及中、英文释义完成单词

1.Whenpeopledrivemotorbikes,theymustputon_______(头盔).

2.-Whatdoyouthinkoflifeon_______(火星)?

-Itisinteresting,butIdon’twanttolivethere.

3.Wemayneedtowearspecialbootsbecauseoftheproblemof_______(重力).

4._______(除去水分的)foodcanbestoredforaverylongtimeanddoesn’tgobad.

5.Theoldmancan’tbreathesmoothly;weshouldgivehimanair_______(acontainerthatholdsliquidorgas).

答案：1.helmets 2.Mars 3.gravity 4.Dried 5.tank

二、选择所给单词的适当形式填空

pollute,sleep,little,travel,dry

1.Ineverthinkabout_______intospace.

2.Therewillbeless_______onMarsthanontheEarth.

3.Iwanta_______bagforthecomingtrip.

4.-Haveyoutakenanythingtoeatonthetrip?

-Yes.Ihavetakensome_______food.

5.Weneedtowearspecialbootstomakeusheavierbecausethereis_______gravityontheMoonthanontheEarth.

答案：1.travelling 2.pollution 3.sleeping 4.dried 5.less

三、选择所给动词的适当形式填空

discuss,travel,watch,dry,live

1.-Doyoubelievethatbytheyear2050manypeople_______onMars?

-Yes.

2.Mybrotherhated_______TV,butnowheisacouchpotato.

3.Ourteachertoldusthatlight_______muchfasterthansound.

4.Thestudents_______whatlifeonMarswillbelikeinthefuturenow.

5.Ithink_______foodisnottastierbuteasiertocarrywhenyougohiking.

答案：1.willlive 2.watching 3.travels 4.arediscussing 5.dried

四、单项选择

()1.-WhydoestheEarthlookbluefromspace?

-BecausemostoftheEarth’ssurface_______withwater.

A.covers B.iscovered C.cover D.arecovered

()2.I_______Linda’scousin_______Canada.Infact,heisAmerican.

A.thought,isfrom B.think,wasfrom C.thought,wasfrom D.think,isfrom

()3.-Ithinkwashinghandseverydayisgood_______ourhealth.

-Yes.Iagree_______you.

A.to,to B.with,to C.for,with D.at,with

()4.MarsBaseICampwasbuiltinJinchang,Gansu,toletyoungpeopleexperie