人教版八年级英语下册Unit7单元拓展提升课件

Unit7What’sthehighestmountainintheworld?单元拓展提升一、语法选择(难度:★★★)InnorthernChinaduringspring,bigsandstorms(沙尘暴)oftenmaketroubleforpeople.Sandstorms

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⁠happeninspring.They

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⁠inmorethan10provincesinnorthernChinalastyear.PeopleinsouthernChinadon’thavetoworry

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⁠thiskindofbadweather.MostofthesandcomesfromthenorthofChina.

InnorthernChina,lotsofplaceshavefewtrees

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⁠don’tgetmuchrain.Whentherearen’tmanytrees,theground

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⁠keepenoughwater.Overtheyears,thegrounddriesupandturnsintosand.

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⁠springcomesandtheicemelts(融化),thegroundbecomesloose(疏松的).Strongwindstaketheloosesandintothesky.Besides,innortheastChina,therearesomevastdeserts.

Sandstormsarebadfor

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⁠health.Ifpeoplebreatheintoomuchsand,theywillcoughorhaveseriousillness.Sandstormsalsogivefarmerslotsofproblems.

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⁠theirsheepgetlostinthestormsandnevercomebackhome.Thewindsalsotearthefarmers’housesdown.

Whatcanyoudo

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⁠peoplefromsandstorms?Here’sapieceofadvice.Askyourparentstohelpyouplantsometreesthisspring.Ifyouseepeoplecuttingdown

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⁠trees,tellthemaboutthedangersofsandstorms,andaskyourgovernmenttostopthem.

(

B

)1.A.usual

B.usually

C.unusual(

C

)2.A.happen

B.happens

C.happened(

B

)3.A.for

B.about

C.of(

C

)4.A.or

B.so

C.and(

B

)5.A.mustn’t

B.can’t

C.shouldn’t(

A

)6.A.When

B.If

C.Since(

C

)7.A.people

B.peoples

C.people’s(

B

)8.A.Sometime

B.Sometimes

C.SometimeBCBCBACB(

C

)9.A.protect

B.protecting

C.toprotect(

B

)10.A.toomuch

B.toomany

C.muchtooCB二、阅读理解(B篇)(难度:★★★★)PeopleoftenthinkoftheNorthPole(北极)andtheSouthPoleassimilarfrozen(冰冻的)wastelands.Theyarebothplaceswithverycoldtemperaturesandfewpeoplelivethere.However,theNorthandSouthPolesarenotmuchalikeaspeoplemayimagine.TheNorthPolehasnoland,onlythickice.Temperaturesseldomgoabove32°F,atwhichwaterturnsintoice.Mostofthetime,itstaysbelowzero.Inwintertemperaturesareusuallyaslowas-30°F.Althoughconditionswereverypoor,peopletriedformanycenturiestoreachtheNorthPole.About100yearsago,twomen,RobertPearyandMathewHenson,wereabletogettothisenvironmentfulloftroublesanddifficulties.TheyreachedtheNorthPolein1909.Itwasreallyahardtripforthem.TherearefewthingsmoredangerousthancrossingtheArctic(北极圈)onfoot.Peoplewhostayedtheremayfacemanyproblems:verycoldtemperatures,suddenstorms,andevenhunger.Mostoftheareaisuninhabited.Fewpeoplecanliveinsuchadifficultplace.Peoplemightthinkthatwithsuchlowtemperaturesformostoftheyear,theicewouldbethickandhard.However,thisisnottrueintheArctic.Themovementoftheoceanwaterundertheicemayoftencausemanydifferentchangesonthesurface.Sometimestheicebreaksintotwoopeninglanesofwater(水道)called“leads”.Anyonewhofallsintoaleadcanbefrozentodeathinafewminutes.(

A

)11.Accordingtothepassage,whathappenedabout100yearsago?

A.TwomensucceededingettingtotheNorthPole.B.TemperaturesintheNorthPolewentabove32°F.C.TheenvironmentintheNorthPolesuddenlybecameworse.D.TheNorthPolechangedintothickicebecauseofthetemperatures.A(

D

)12.Whatdoestheunderlinedword“uninhabited”meaninParagraph4?A.Beingdifficulttobelieve.B.Needingsomethinginordertosurvive.C.Beinglikelytobecorrectortrue.D.Withnopeoplelivingthere.D(

C

)13.What’sthereasonfortheicetobreakintotwoopeninglanesofwater?A.Thetemperaturesuddenlydrops.B.Thewaterundertheiceisfrozen.C.Theoceanwaterundertheicemoves.D.Thesurfaceiscoveredwithlotsofice.C(

C

)14.Whatdoesthispassagemainlytalkabout?

A.ThethickiceintheNorthPole.B.AdifficulttriptotheNorthPole.C.TherealsituationintheNorthPole.D.ThedifferencesbetweentheNorthPoleandtheSouthPole.C(

B

)15.Whereisthispassageprobablyfrom?A.Abookreview.B.Asciencebook.C.Aschoolreport.D.Acomputermagazine.B三、短文填空(难度:★★★★)Protectingwildanimalsisourdutybecausewildanimalsareimportanttous.Theylivewithusontheearthtogether.Iftherearenoanimalsontheearth,wewillnotliveon,

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⁠.Soweshouldtakegoodcare

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⁠themtohelpusliveahealthylife.

Butsomepeoplestilldon’trealizethe

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⁠ofprotectingwildanimals.Theyoften

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⁠wildanimalsforfoodormoney.Everydaymanywildanimalsarebeingkilled.Solotsofanimalshavediedout.Wecan’tseethem

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⁠.Todaythenumberofwildanimals

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⁠becomingsmallerandsmaller.Ifwedon’tprotectthem,theywilldieout.Ifthisgoeson,therewillbenoanimalsleftontheearth.

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⁠,moreandmorepeoplehavebeguntodomanythingstohelpprotectwildanimals.Theyaskpeopletostopkillingwildanimals.Theygetpeopletoknowthatprotectingwildanimalsisoneof

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⁠mostimportantthings.Nowmanycountrieshavemadesomelaws(法律)toprotectwildanimals.Nowthat(既然)wildanimalsaresoimportanttoman,weshoulddoour

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⁠toprotectthemanditmeanshumanbeingscanmakefriendswithanimalsandgetonwellwith

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⁠.

16.

either

17.

of

18.

importance

19.

kill

20.

anymore

21.

is

⁠

22.

Luckily

23.

the

24.

best

25.

them

either

of

importance

kill

anymore

is

Luckily

the

best

them

四、回答问题(难度:★★★★)EarthHourisaglobalactivityorganizedbyWorldWideFundForNature(WWF).ItaskshomesandbusinessestoturnofflightsforonehouronthelastSaturdayofMarcheveryyear.Itaimstoaskpeopletocarefortheearthandsaveenergyaswellasprotecttheclimate(气候).ThisactivitystartedinSydney,Australiain2007.Andnowithasgrowntobecomeoneoftheworld’sbiggestcelebrationsforourplanetwithhundredsofmillionsofpeoplearoundtheworldtakingpartinit.Whatwerepeopledoingduringthe“EarthHour”?Herearesomeposts.Ann:Iamauniversitystudent.IinvitedsomeofmyfriendstosupportEarthHour.DuringtheEarthHour,wewerehavingacandlelightconcertontheplayground.Wewerealsotalkingaboutthehappytimeswespentintheuniversitytogether.Peter:Iwashavingacandlelightdinnerwithmywifeinarestaurantnearmyhouse.Itwasmeaningfulandromantic.Jack:Myfamilyweresittingintheyard.Wewerewatchingthestarsandthemoon.Andwewerealsotalkingalotwitheachother.Itisagoodandrelaxingtimeafterabusydayofwork.26.WhenisEarthHourheldeveryyear?

EarthHour/ItisheldonthelastSaturdayofMarcheveryyear./OnthelastSaturdayofMarch.

⁠27.WhereandwhendidEarthHourstart?

EarthHour/ItstartedinSydney,Australiain2007./InSydney,Australiain2007.

⁠

EarthHour/ItisheldonthelastSaturdayofMarcheveryyear./OnthelastSaturdayofMarch.

⁠

EarthHour/ItstartedinSydney,Australiain2007./InSydney,Australiain2007