七年级下册英语Unit4-Save-the-trees

七年级英语七年级英语英语课题Unit4Savethetrees知识点及拓展：savev.拯救Tosavethetrees.拓展：1）tosaveone’slife救命、拯救生灵Shesavedthedog’slife.2）节约、节省 Itcansavewatertobuythiskindofwashingmachine.3）储蓄、保存、积攒 Inordertosavemoney,hemadeadeskbyhimself.discussv.讨论Let’sdiscusstheimportanceoftrees.拓展：discusswithsb. Let’sdiscusstheplanwithMr.Brown.argue,quarrel,debate,discuss&reason1)argue指提出理由或证据为自己一方的看法或立场辩护，着重说理、论证和企图说法。Weheardthemarguingintheotherroom．2)quarrel指不友好的、吵吵嚷嚷的大声争论某事，尤其指“吵嘴、吵架”。Heoftenquarrelsabouttheirhouseworkwithhiswife．3)debate指意见对立的双方之间正式或公开的争辩。WhenIleft,themenwerestilldebating.4)discuss常用词，指就某一个或某一些问题表明观点、看法等，以便统一认识，解决问题。Weshoulddiscusstheproblem.fightv.与……斗争Theyhelpfightagainstpollution.拓展：fightagainst/withsb./sth.为某人/某事而争论/打架 Haveyoufightwithyourbrotherjustnow?fightabout/oversth.因某事而争论Don’tfightaboutsmallthings.againstprep.反对Areyouagainstitorforit?examplen.例子Writedownthreeexamples.拓展：1)表示给某人举例，一般用give。 Giveanexample.2)setanexampletosb.给某人树立一个榜样。 Hesetagoodexampletous.3)forexample例如，用作插入语。 He，forexample，isagoodstudent.harmfuladj.有害的Theytakeinharmfulgasesfromtheair. 拓展：1)beharmfulfor（doing）sth.对某物有害 It’sharmfulforyourhealth.2)beharmfultosb.对某人有害 It’sharmfultoducev.产生、生产Thismachinecanproduceoxygen.拓展：1）produceby+生产者 Thesetableswereproducedbyhim.2）producefrom+生产地 ThesetableswereproducedfromShanghai.majoradj.主要的Theyaremajorfighteragainstairproduction.拓展：majorin主修（学科） I’mmajorinEnglish.furnituren.家具Theroomhadlittlefurnitureinit.拓展：furniture属表总称的物质名词（集合名词），没有复数形式，也不和a/an连用，含义上永远是单数。若要表示“量”，则可以用much,little,alittle,alotof,lotsof等修饰，但不能用many,few,afew修饰。carryv.搬运、扛、背ThegoodswillbecarriedbythetraintoLondon.拓展：bring/take/carry/get区别bring意思为“拿来”、“带来”。指将某物或某人从别处“带来”。Bringmethebook,please.take意思是“拿走”，“带走”，把某物或某人从这里“带来”或“拿到”某处之意。Itlookslikerain.Takearaincoatwithyou.carry是“带着、搬运、携带”的意思，指随身携带，有背着、扛着、抱着、提着的含义，不表明来去的方向。Doyoualwayscarryahandbag?get是去某处将某物拿回来。Thereisnowaterinthebottle.Whynotgetsome?asaresult(最终)结果Hewonthegameasaresult.拓展：asaresultof由于 Hewaslateasaresultofthesnow.thenumberof&anumberof区别thenumberof……的数量，后面用可数名词复数，但谓语动词用单数。Thenumberofstudentsinourclassis55.anumberof许多，相当于many修饰可数名词复数，做主语是，谓语动词用复数。Anumberofstudentsareplantingtreesonthehill.doone’sbesttodosth.尽某人最大的努力做某事=tryone’sbesttodosth.Wemustdoourbesttoprotecttheair.=Wemusttryourbesttoprotecttheair.inmanyways用许多种方法Theyhelpusinmanyways.拓展：in的用法:1)表示时间，意为“在……后”，常用于将来时或含有将来意味的句子中。I’llbebackinanhour.2)表示地点、位置、范围、空间等。Lookthereisaholeinthewall.3)表示方式、手段、材料、语言等，意为“用”。 CanyouanswermyquestioninEnglish？infact实际上、事实上Infact，Ilikeyourpicture.getv.得到拓展：1)getsb.sth.为某人弄到某物 Couldyougetmeanewpen?2)get+adj.Insummeritdoesn’tgetdarkuntilafter7o’clock.lookaround四下观望，环顾Lookaroundthisroom.拓展：look相关短语(1)lookafter照看,照料(2)lookfor寻找(3)lookaround(4)lookbackon回想,回顾(5)lookdownon看不起(6)lookforwardto盼望(7)lookinto朝……里面看(8)lookon...as把某人看作(9)lookout当心(10)lookover仔细检查;翻阅(11)lookthrough浏览;仔细检查(12)lookup抬头看;查;找出Grammar——现在进行时现在进行时表示1、现在（说话的瞬间）正在进行或发生的动作，强调“此时此刻”。E.g.Heisreading.Theyaretalkingnow.2、当前一段时间内的活动或现阶段正在进行的动作。E.g.Theyareworkingthesedays.3、某些动词的现在进行时，表预定的计划或即将发生的动作。E.gIaming.其结构为be+现在分词.现在分词的变法为：(1)一般动词直接加-ing如：sing-singing eat-eating(2)如以不发音的e结尾,先去掉e再加-ing 如:exist-existing e-ing(3)以重读闭音节结尾,且末尾只有一个辅音字母(x除外)的动词先双写末尾辅音字母,再加-ing.如:win-winning begin-beginning但:mix-mixing kick-kicking explain-explaining专项训练：写出下列动词的现在分词形式work___________dance__________run__________study__________sing__________have__________sit__________play__________write__________shop__________study_________mix__________swim__________fit listen 单选：1、Look!He_____theirmotherdothehousework.A.ishelpingB.arehelpC.ishelpD.ishelpping2、_____aretheboysdoing?Theyaresingingintheroom.A.WhoB.HowC.WhatD.Where3、Don’ttalkhere.Mymother_____.A.issleepingB.aresleepingC.sleepingD.sleep4、Danny______.Don’tcallhim.A.iswriteingB.iswritingC.writingD.writes5、–When_____he_____back?–Sorry,Idon’tknow.A.does,eB.areingC.iseD.ising填空1、It’steno’clock.Mymother___ __(lie)inbed.2、What___ __he___ __(mend)?3、We___ __(play)gamesnow.4、What___ __you___ __(do)thesedays?5、___ __he___ __(clean)theclassroom?6、Who___ __(sing)inthenextroom?7、Thegirl___ __(like)wearingasweater.Look!She___ __(wear)aredsweatertoday.句型转换1．Theyareplayingbasketballnow.(变一般疑问句) playingbasketballnow?2.Thebabyissleeping.（变否定句）Thebaby sleeping.3.TheyarewatchingTV.（划线提问） they ?4.Don’tworry.Hewilletoseeyouthisafternoon.（变同义句）Don’tworry.He toseeyouthisafternoon.5.Theworkersareatworknow.（变同义句）Theworkers now.Reading根据句意和所给的首字母完成下列句子。Heclimbedupthetreetogetbackthekiteamongtheb__________.Wejointhearmybecausewewanttof____________forourcountry.Beforewemoveinournewhouse,weneedtobuysomef___________.Canyoui___________whattheworldwouldbelikewithoutwater?Thelittlefactoryp___________twomillionpencilseveryday.语言知识运用。Thedoctorgavehimsomepillsto__________thepain.takeoffB.takeinC.takeonD.takeawayDosomesportseveryday.Itwillhelpyoukeep__________.A.healthyB.healthilyC.kindlyD.excitedly——Thereare_________peoplehereinourcity.——Actually,thereare__________peoplehereinourcity.Millionsof;threemillionB.Millionsof;millionsC.millionsof;threemillionofD.Millionof;threemillionof——Whattimeisitnow?——Itis20:00.Ithinkweshouldstop__________first.havingsupperB.havesupperC.tohavesupperD.tohavingsupper——Ibought____________furniture.——Really?What________?anew;isitmadeofB.anew;doesitmadeofC.anewpieceof;isitmadeofD.anewpieceof;doesitmadeofLookatthisoldbridge!Itismade__________stones.A.fromB.ofC.intoD.UpI_________theswimmingclubifyou________it.A.join;joinB.willjoin;joinC.join;willjoinD.willjoin;willjoinHeheardsomeonecallinghisname,sohestoppedand________.Buthecouldn’tseeanyone.A.lookedaroundB.lookedupC.lookedintoD.lookedfor——wecan’tlivewithouttrees.Theymakeourlives_________.——Iagree.Weshouldstoppeople_________trees.A.convenient;tocutdownB.conveniently;tocutdownC.convenient;cuttingdownD.conveniently;cuttingdownthelittledoghelpshisowner_________manyways__________hisdailylife.A.in;atB.on;inC.in;inD.on;on根据中文提示完成下列句子。事实上，他是一个好人。_____________________，heisagoodman.许多家具是由木材做成的。Alotof_______________________________________wood。作家们的灵感许多都来源于他们的日常生活。Mostofthewriters’ideas________________their_________________.换掉你的热水器，否则你将会吸入过量的有害气体。Changeyourwater-heater,________youwill___________________toomuch.如今，许多女性都能兼顾事业和家庭，例如Jane就是其中的一位。Nowadays,manywomenhaveacareerandafamily——Jane________________.Grammar语言知识运用。look!Peter________TVhappily,buthisparentsarebusyinthekitchen.A.iswatchingB.watchesC.watchedD.willwatch——MayIspeaktotheprincipal?——Sorry,he_______ameetingnow.CanItakeamessage?A.ishavingB.hadC.hasD.willhaveWhereisSally?Hermother_______forhereverywhere.A.looksB.lookedC.islookingD.waslooking——Dad_____forparistomorrow.——Really?Let’sgoandaskhimtobringbacksomepresentsforus.A.AregoingtoleaveB.IsleavingC.LeftD.leavesListen!________you_________someonecrying?A.Do;hearB.Are;hearingC.Did;hearD.Will;hear——Canyourbrothermakeamodelairplane?——Yes,theseweekshe________anewschool.A.buildsB.isbuiltC.willbuiltD.isbuildingAsweknow,thingslikethat________allovertheworldeveryday.A.HappensB.ArehappenedC.ArehappeningD.Willbehappened——Sam,edownstairs,please.Ineedyourhelp.——Idon’tthinkIcan,mum.I_______onthephone.talkB.talkedC.talkingD.amtalking用所给词的正确形式填空。Simon________(be)abusinessman.He________(have)twosons.One_______(study)inNo.1Middleschool,andtheotherisstudyinginNo.2MiddleSchool.Thesedays,Simon_______(do)abigprojectandhe________(leave)Guangzhounextweek.Hissons________(be)veryhappybecausetheycandoeverythingtheylike,suchas________(sleep)late,_______(watch)TValotand________(eat)alotofice-creams.They_______(look)forwardtoit.SpeakingandWriting找出下列单词中划线部分的发音与其他不同的单词。A.starB.studyC.standD.postA.schoolB.skyC.taskD.scoreA.oxygenB.majorC.apologizeD.gasA.convenientB.imagineC.diseaseD.receiveA.againstB.majorC.containerD.Save判断句子的正误T\F,并在原句中改正错句。Treeshelpmeinmanyways,suchaskeeptheaircleanandproduceoxygen.（）Treesalsomakeoutlivesmoreconveniently.()Alotoffurnituresismakeofwood.()Wecanprotectourearthbyplantmoretrees.()Manypeoplekeepcuttingdowntreesbecauseoftheywanttomakemoneyfromthewood.()Morepractice翻译下列词组。成千上万_________________2、通过做……_______________________生物__________________4、因为_______________________结果是_________________6、……的数量_____________________尽力做某事__________________语言知识运用。____________youngpeoplearewaitinginthesquaretoseetheiridol.A.6thousandB.6thousandsC.6thousandsofD.Thousandof_________aresule,youhavetostudyharderfromnowon.ToB.InC.AsD.ForWeshouldprotectourenviroment_________moretrees.A.inplantingB.withplantingC.forplantingD.byplantingYoushouldcancelthevisiting_________thebadweather.A.becauseB.becauseofC.whyD.by5、_________ourfanclubsisbeinglargerandlarger.A.thenumberofB.anumberofC.thenumberD.anumber单元评价听力（略）语言知识及运用。（共三节，满分3分）语音（每小题1分，共10分）找出下列单词中划线部分的发音与其他不同的单词。A.skateB.skyC.taskD.skirtA.airportB.tickC.testD.stepA.pointB.spreadC.pressD.crispA.carryB.pineC.flyD.dietA.againstB.rainC.containerD.remainB.从下列选项中找出重音与其他不同的一项。A.helpfulB.rescueC.towelD.discussA.diseaseB.addressC.perfectD.preferA.finishB.greetingC.majorD.produceA.oxygenB.exampleC.anywhereD.probablyA.appearB.programmeC.patientD.bottom单项选择（共10小题，每小题1分，满分10分）Besilent!Someone_________!Canyouhearit?A.singsB.sangC.issingingD.willsingTheskytonightisreallybeautiful.Youcansee________starssmilingtoyou.A.3thousandsB.3thousandsofC.3thousandofD.thousandsof——Ican’tdecidewhichdresstobuy.Canyouhelpme?——Ofcourse!I_______theblueonebest!A.likesB.likeC.amlikingD.isliking_________thehelpofJohn,littleTomstops________.Sowecanenjoyourbooksnow.A.With;cryingB.On;cryingC.With;tocryD.On;tocryWhenthereisafire,don’tforgettogetawettowelsothatyouwon’t_________toomuchCO2.A.getinB.makeinC.putinD.takein——Youarereallybusy!——Yes,Imustfinishtheworknextweek.I______forLondonnextweek.leaveB.amleavingC.leftD.leaving——Whathappenedtoyourmother?——Sorry,dad.Imadeher_________justnow.A.angryB.angrilyC.happyD.happilyThedeadteacherasked_______boystocleanthemeetinghall.A.anumberB.thenumberofC.anumberofD.thenumberofCanyoubelievethathegetssomuchmoney________rubbish?A.withcollectingB.bycollectingC.ofcollectingD.bycollect——WillyougotowatchthenewmoviethisSunday?——I________gotowatchitifit________stopraining.A.don’t;won’tB.don’t;don’tC.won’t;won’tD.won’t;doesn’t语法选择(共10小题，每小题，满分10分)AChineseman____31_____CaiLuninventedpaperalmost2,000yearsago.Hemadepaper____32_____wood.Hethenputallthepapertogetherandmadethepaper___33_____abook.Nowwestillusewoodtomakepaper.Weusealotofpapereveryday.Ifwekeepon_____34____somuchpaper,therewillnotbeanytreesleftontheearth.If____35____notrees,therewillbenopaper.Everyday,people___36______about2,800tonsofpaper.Weuse17treestomakeonetonofpaper.Thismeanswearecuttingnearly48,000treeseveryday.Sinceit___37_____morethan10yearsforatreetogrow,wemuststartusing____38____papernow.Sohowcanwesavepaper?Wecanusebothsidesof____39____paper,especiallywhenwearemakingnotes.Wecanchoosedrinksinbottlesinsteadofthoseinpaperpackets.Wecanalsousecottonhankerchiefs(手帕)butnotpaperones.Whenwegoshopping,wecanusefewerpaperbags.Iftheshopassistantgivesusapaperbag,wecansaveitandreuseitlater.Everyonecanhelptosavepaper.Ifweallthinkcarefully,wecanhelp___40_____trees.Butweshoulddoitnow,beforeitistoolate.31.A.callB.callsC.calledD.calling32.A.fromB.ofC.intoD.for33.A.fromB.ofC.intoD.for34.A.wasteB.towasteC.wastedD.wasting35.A.therewillbeB.thereareC.therewasD.therewasn’t36.A.takeinB.putonC.throwawayD.putaway37.A.spendsB.takesC.costsD.pays38.A.manyB.fewC.fewerD.less39.A.aB.apieceC.onepieceD.many40.A.protectB.protectsC.protectingD.toprotecting完形填空Youmaythinkthereisonly____41______inthedesertoftheworld.However,itisnottrue.Inthedesert,asweknow,thereisalittle__42_______,butitisnotgoodenoughformostplants.Stillwecanseesomeplantsliveinthedesert.Thereis_____43_____insomeplacesinthedesert.Wecalltheseplacesoases(绿洲)。Intheoases,therearevillagesandtowns.Peoplegrowallkindsof___44______inthefieldsthere.Peoplealsoliveoutsidetheoases.Theyhavecamels,sheepandotheranimals.____45______aretheseanimals’foodandtheydonotneedmuchwater.The_____46_____areusefultothedesertpeopleinmanyways.Theyeatthemeatanddrinkthemilkoftheanimals.Theyusethe___47______forcarryingwater,food,tentsandsomethingelse.Thepeopleofthedeserthavetokeepmovingfromplacetoplace.Theymustalways___48______grassordesertplantsfortheiranimals.Whenthereisnomore____49_____fortheiranimals,theymovetoanotherplace.Thedesertpeopleare____50______.Nomaninthedesertwouldeverrefusetohelpthepeopleintroubleandgivethemfoodandwater.A.treeB.stoneC.sandD.plantA.rainB.windC.sunshineD.snowA.stonesB.waterC.plantsD.woodA.cropsB.treesC.animalsD.fishA.CropsB.SmallanimalsC.TherainD.DesertplantsA.animalsB.grassC.waterD.cropsA.dogsB.horsesC.elepantsD.camelsA.lookafterB.lookforC.lookupD.lookoutA.foodB.waterC.weatherD.landA.happyB.uglyC.friendlyD.dark阅读理解（共10小题，每小题2分，满分20分）(A)Cantreestalk?Yes---butnotinwords.Scientistshavereasontobelievethattreesdomunicatewitheachother.Notlongago,researcherslearnedsomesurprisingthings.Firstawillowtree(柳树)attackedinthewoodsbycaterpillars(毛毛虫)changedthechemistryofitsleavesandmadethemtastelesssothatthecaterpillarsgottiredoftheleavesandstoppedeatingthem.Theevenmoreastonishing,thetreesentoutaspecialvapor---asignalcausingitsneighborstochangethechemistryoftheirownleavesandmakethemselvestastealsoterrible,too.Talking,ofcourse,doesn’tneedtobealwaysinwords.Wecantalktoeachotherbysmiling,raisingourshouldersandmovingourhands.Weknowthatbirdsandanimalsuseawholevocabularyofsongs,soundsandmovements.Beesdancetheirsignals,flyingincertainpatternsthattellotherbeeswheretofindnectar(花蜜)forhoney.Soshyshouldn’ttreeshavewaysofsendingmessages?(173words)51、fromthepassage,whichkindofleavesdon’tcaterpillarseat?leaveslyingontheground.B.leaveshavinganunpleasanttaste.C.leavesbeesdon’tlike.D.leaveshavinganunfamiliarshape.52、thewillowtreedescribedinthepassageprotecteditselfby_________.growingmorebranchesB.talkingwithbirdsandbees.C.changingitsleafchemistryD.shakingcaterpillarsoff53、accordingtothepassage,thewillowtreewasabletotalkwithothertreesby___________.WavingitsbranchesB.givingoffaspecialsmellC.droppingitsleavesD.changingthecolourofitstrunk54、Accordingtothepassage,beestalkby_________.makingspecialmovementsB.touchingoneanotherC.smellingoneanotherD.makingunusualsounds55、whatdoestheauthorthinkabouttheideathattreescantalk?itisnottrueatall.B.onlyafewpeoplebelieveit.ThescientistsmadesomemistakesD.Itseemsveryreasonable.(B)Chinaisthebestbirthplaceoftea.Nowdays,anincreasingnumberofforeinersareinterestedinteaandtheteaculture.Drinkingteaisgoodforourhealth.Herearesometipsfortealovers.GreenTeaisthebestchoiceforofficeworkersPeoplewhoworkinplaceswithairconditioningmayfaceskinproblems.Theyareeasytogetdryskin.However,greenteacanhelpyousolvethisproblem.Besides,greentea,likemakeup,canpreventputerradiation(辐射).WinteristheseasontodrinkBlackTeaManychinesepeoplebelievethatdifferentpeopleshoulddrinkdifferenttea.Blackteacanwarmthestomach,refreshthemindandacceleratedigestion(加速消化).Therefore,drinkingwarmblackteainthecoldwinterisamostsuitablechoice.DonotdrinkthickteaStrongteamaytakethehumanbodymuchtooexcitedandcandosomethingbadtoyourcardiovascularandnervoussystem(心血管和神经系统).Apersonmaygeth