2019年春八年级英语下册 Unit 8 Save Our World课时滚动训练[Lessons 43-45]练习 （新版）冀教版

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1、Unit8SaveOurWorld课时滚动训练[Lessons43—45]Ⅰ.完形填空Lifetodayhasbroughtnewproblems.Oneof__1__problemsispollution.Waterpollution__2__ourriversandlakesdirty.Itkillsourfishandpollutesour__3__water.Noisepollutionmakesus__4__louderandbecomeangrymoreeasily.Airpollutionisthemostseriouskindofpollution.It'sbadf

2、orall__5__thingsintheworld.Cars,planesandfactoriesallpolluteouraireveryday.Sometimesthepollutedairis__6__itislikeaquiltoveracity.Thiskindofquiltis__7__smog(烟雾)．Manycountriesaremakingrulestofightpollution.Factoriesmustnowcleantheirwaterbeforeitisthrownaway,andtheymustn'tblowdirtysmokeintotheair

3、.Weneedtodomanyotherthings.Wecanputwastethingsinthedustbinandnotthrowthemontheground.Wecangotoworkbybikeorwithourfriendsinthesamecar.Ifthereare__8__peopledriving,therewillbelesspollution.Rulesarenot__9__.Every__10__musthelpfightpollution.(　　)1.A.bigB．thebiggerC．thebiggestD．biggest(　　)2.A.hasma

4、deB．likesC．letD．hastaken(　　)3.A.drinkB．drinkingC．dirtyD．living(　　)4.A.tosayB．sayingC．totalkD．talk(　　)5.A.aliveB．lifeC．livingD．lively(　　)6.A.toothicktoB．thickenoughtoC．suchthickthatD．sothickthat(　　)7.A.calledB．callingC．callD．calls(　　)8.A.lessB．fewerC．afewD．alittle(　　)9.A.enoughB．rightC．muchD．im

5、portant(　　)10.A.peopleB．personC．menD．studentsⅡ.阅读理解Pollutioninsidehomesandotherbuildingskillsmorethan4millionpeopleeachyear.Manypeopledieasaresultofbreathingsmokeorfromcookingoverwoodpoweredorcoalpoweredstoves.Onewaytoreducethenumberofdeathsisthroughcookingequipmentpoweredbythesun.CrosbyMenzie

6、s,asolarpowerexpertinaSouthAfricancompany,describedhislatestsolarcookercalledthe“Sol4”．“Itisfoursquaremetresofmirrors,sixtoeightmetresinlength.Itisquitealargecooker.”The“Sol4”worksbyreflecting(反射)lightfromthesunofflargemirrors.Themirrorsdirect(把……对准)thelightatacookingpan.Thenthelightheatsthepa

7、nwithsolarenergy.Withintwominutes,thepanishotenoughtocooksausagesandonions.Injustfourminutes,watercanbeboiled.Thatisasfastascookingwithnaturalgasorelectricity.Thecookerisalsomuch“friendlier”thanothermodelsbecausepeopledonothavetostandin