2026新沪教八下英语 Unit5 语法总结+练习

昌昌Unit5语法知识总结囚语法点一：Itis+adj.+for+n./pron.+to+v.例句1：Itisimportantforustoprotectthem.例句2：例句2：Itisgoodforpeopletosaveendangeredanimals.(2)此句型中的形容词表示句中动作的特征，如(3)常用于这一句型的形容词有：common,easy,righ囚囚语法点二：Itis+adj.+of+n./pron.+to+例句1：Itiscruelofthemtokillpandas.例句2：例句2：Itiskindoftheboytotrytosavethedog.(2)此句型中的形容词表示句中人或事囚语法点三：adj.+enough+to+v.例句1：Theyarestrongenoughtoprotectthemselves.例句2：Thebabypandaisnotoldenoughtoeatbamboo.=Thebabypandaistooyoungtoeatbamboo.一、单项选择(共20题，每题2分，共40分)1.It'simportanttoourparentswhenwehaveproblems.A.totalkB.talkingC.talk2.isnecessaryforustowashourhandswhenwearebackhome.C.This3.isimpoliteforustoshoutatothersloudly.A.ThisC.There4.—It.ssokindyoutohelplookaftermycat.—That.sOK.It.snecessaryustohelpeachother.A.of;ofC.of;for5.It.sdangerousforchildrenthedog.A.playC.toplaywith6.It.sseveno.clock.It.stimetoschool.A.go7.Myfatherlovessports.Ittakeshimonehoursportseveryday.A.doing8.It.sreallyniceyoutohelpheranswerthem.A.for9.It.simportantushardinordertohaveabetterlife.A.of;workB.for;toworkC.with;working10.—It.ssokindyoutohelpmewiththeproblem.—That.sOK.It.snecessaryustohelpeachother.A.of;forC.for;of11.—IwanttosetupaNanyinclubinourschool.—That.sagoodidea!Itisquitenecessaryforusthistraditionalart.A.spreadB.spreadingC.tospread12.It.sverynicepicturesforme.A.ofyoutodrawB.foryoutodrawC.foryoudrawing13.Ifindthisbookforasix-year-oldchildtoread.A.enougheasyB.easyenoughC.easilyenough14.Janeisalwaystoshareherthingswithus.That.swhysheispopular.A.toogenerousB.enoughgenerousC.generousenough15.Jackis13yearsold.Heistohelphismotherdosomehousework.A.enougholdB.oldenoughC.youngenough16.—AreyoutogoonatriptoGuilin?A.freeenough;enoughmoneyB.enoughfree;enoughmoneyC.freeenough;moneysenough17.—Mom,IthinkI.mtotakecareofmyself.—OK,I.mgladtohearthat.A.bigenoughB.oldenoughC.enoughold18.Theboyisn.ttogotoschool.A.enougholdB.oldenoughC.enoughbig19.—Howoldisyouryoungersister?—Sheissevennow.ShewillbetogotoschoolthisSeptember.A.enougholdB.oldenoughC.youngenough20.Thebookisforustoread.A.goodenoughB.enoughgoodC.toogood二、完成句子(共10题，每题2分，共20分)21.保持校园干净整洁是我们的责任。It'sourdutytokeepourschoolyardcleanandtidy.22.对我们来说，保持好心情是必要的。Itisnecessaryforustobeinagoodmood.23.在运动时穿运动鞋是很有必要的。It'sverynecessarytowearsportsshoeswhendoingsports.24.Becomingafamousrunnerisnoteasy.(改为同义句)Itisnoteasytobecomeafamousrunner.25.学习好的礼仪对孩子来说是很重要的。Itisimportantforchildrentolearngoodmanners.26.Myhomeisabouttwentyminutesbybike.(改为同义句)Ittakesmetwentyminutestoridetherefrommyhomebybike.27.Nancyistooweaktocarrytheheavybox.(改为同义句)Nancyisnotstrongenoughtocarrytheheavybox.28.ThemathsproblemwassodifficultthatIcouldn'tworkitout.(改为简单句)Themathsproblemwasn'teasyenoughformetoworkout.29.她真高，能够得着书架的顶部。Sheistallenoughtoreachthetopofthebookshelf.30.你帮我修车真是太好了。Youarekindenoughtohelpmemendmycar.三、短文填空(共20题，每题2分，共40分)囚PassageA:ElephantsElephantsareamazinganimals.Theyaresomeof31.thebiggestbiggestanimalsonland.AnAfricanelephantis32.stronger(strong)thananAsianelephant.Ithasverylarge33.ears(ear).Theylookliketwobigfans.Elephantsareverysmart.Theyhaveexcellentmemoriesandcanrememberplaceswithfoodandwaterforalongtime.Theyalsohavelongtrunks(象鼻).Thetrunkisusedtoeat,drink,andeventake34.abath.Elephantsarefriendlyanimals.They35.lived(live)insmallgroupsmanyyearsagoand36.carefully(careful)lookedaftertheirbabies.However,elephantsareindanger.Theyarelosingtheirhomes37.becausepeoplearecuttingdowntoomanytrees.Also,somepeoplehuntthemfortheirivory.Wemustdosomething38.toprotect(protect)thesekindanimals.Weshouldnotbuy39.anything(something)madeofivory(象牙).Wecanalsotellmorepeopleabouttheimportanceofelephantprotection.Ifweworktogether,elephants40.willenjoy(enjoy)abetterlifeinthefuture.囚PassageB:EmperorPenguinsMynameisPingo.Iamatwo-year-oldemperorpenguin(帝企鹅).Ilive41.inAntarctica(南极洲)withalltheotheremperorpenguins.Therearenoemperorpenguinsanywhereelseintheworld.Togetherwithmanyotherpenguins,wemakeupagroup.Wespend42.our(we)wholeliveshereandthetemperaturecandropto-75℉.Wehavespecial43.ways(way)ofkeepingwarm.Emperorpenguinsare44.thelargest(large)penguinsintheworld.Inourgroup,45.whenanemperorpenguinis9monthsold,heisfullygrown(成年的).ThetallestinmygroupisPablo—4feettall.Emperorpenguinsareheavytoo.Pabloismorethan100pounds.I'mnotastallasPablo.