新外研版七下Unit4专练（含参考答案）

新外研版七下Unit4专练（含参考答案）一、完形填空（共10小题，每小题1分）Animalsareourfriends,andwesharethesameplanet.However,manyanimalsarein__1__now.Someofthemmayevendisappearforeverifwedon'tdosomethingtosavethem.Lastweekend,Ivisitedawildliferescuecentrewithmyclassmates.Thecentreisaplacewhere__2__animalsaretakencareof.Whenwearrived,aworkershowedusaround.Shetoldusthatmostoftheanimalstherewerehurtbyhumanactivities.Somebirdslost__3__wingsbecauseofpollution.Ayoungdeerwashitbyacarwhenittriedtocrosstheroad.Thestorieswerevery__4__,andsomeofmyclassmatesevencried.Thenwehelpedtheworkerscleantheanimals'livingareasand__5__themfood.Ifedababymonkeywithabottle.Itwassoweakthatitcould__6__openitseyes.Theworkersaiditwasfoundaloneintheforest,anditsmotherwasprobablykilledbyhunters.Ifeltverysad,__7__Iwasalsohappythatthelittlemonkeywasnowsafe.Thevisittaughtmeanimportantlesson.Wildanimalsneedour__8__.Weshouldnotbuythingsmadefromanimalfuroreatendangeredspecies.Moreimportantly,weshouldprotect__9__naturalhabitats.Ifwedestroyforestsandpolluterivers,wildanimalswillhave__10__tolive.1.A.dangerB.dangerousC.dangerouslyD.endangered2.A.hurtB.hurtingC.hurtsD.tohurt3.A.theyB.themC.theirD.theirs4.A.touchingB.touchedC.touchD.touches5.A.giveB.gaveC.givenD.giving6.A.hardB.harderC.hardlyD.hardest7.A.soB.orC.forD.but8.A.protectB.protectingC.protectionD.protected9.A.theyB.themC.theirD.themselves10.A.somewhereB.anywhereC.nowhereD.everywhere二、阅读理解B篇（共5小题，每小题2分，满分10分）ASharkshavelivedintheoceanforover400millionyears.TheyareoneoftheoldestanimalsonEarth.Manypeoplethinksharksarescaryanddangerous.However,thetruthisthatsharksaremuchmoreafraidofhumansthanweareofthem.Everyyear,about100millionsharksarekilledbyhumans.Somearecaughtfortheirmeat,butmostarekilledfortheirfins.Sharkfinsoupisapopulardishinsomecountries.Fishermencatchsharks,cutofftheirfins,andthrowthesharksbackintotheocean.Withoutfins,thesharkscannotswimandsoondie.Thispracticeisverycruelandhascausedthenumberofsharkstodropgreatly.Sharksplayaveryimportantroleintheocean.Theyareatthetopofthefoodchain.Theyhelpkeepthebalanceofoceanlifebyeatingsickandweakanimals.Withoutsharks,thenumberofsomeotherseaanimalswouldgrowtoofast,andtheoceanenvironmentwouldbebadlyharmed.Manycountrieshavenowmadelawstostopsharkfinning.Somerestaurantsrefusetosellsharkfinsoup.Moreandmorepeoplearebeginningtounderstandthatsharksarenotmonsters.Theyaresimplywildanimalstryingtosurvive.Protectingsharksmeansprotectingthewholeocean.1.HowlonghavesharkslivedonEarth?A.Forabout40millionyears.B.Forover400millionyears.C.Forabout4millionyears.D.Forover4,000years.2.Whyaremostsharkskilledaccordingtothepassage?A.Fortheirmeat.B.Fortheirfins.C.Fortheirskin.D.Forfun.3.Whatwillhappentoasharkafteritsfinsarecutoff?A.Itwillgrownewfins.B.Itwillbesenttoazoo.C.Itcannotswimandwilldie.D.Itwillliveinadifferentway.4.Whyaresharksimportanttotheocean?A.Theyarethemostbeautifulanimalsintheocean.B.Theyhelpkeepthebalanceofoceanlife.C.Theyprovidefoodforhumans.D.Theycleantheoceanwater.5.Whatisthemainpurposeofthispassage?A.Totellpeoplethatsharksaredangerous.B.Toencouragepeopletoeatmoresharkfinsoup.C.Toteachpeopleabouttheimportanceofsharksandtheneedtoprotectthem.D.Toexplainhowfishermencatchsharks.BPigeonsareacommonbirdinmanycitiesaroundtheworld.Manypeopleseethemeveryday,butfewknowhowamazingthesebirdsreallyare.Scientistshavefoundthatpigeonsaremuchsmarterthanwethink.Pigeonscanrecognisethemselvesinamirror.Thisabilityisveryrareintheanimalworld.Onlyafewanimals,suchasdolphins,elephantsandsomemonkeys,candothis.Itshowsthatpigeonshaveasenseofself,whichisasignofhighintelligence.Pigeonsalsohaveanexcellentmemory.Theycanrememberhundredsofdifferentfacesandplaces.Inoneexperiment,scientiststrainedpigeonstotellthedifferencebetweenpaintingsbyfamousartists.Aftersomepractice,thepigeonscouldtellthedifferencebetweenaPicassoandaMonetwithsurprisingaccuracy.Thismeanstheycanunderstandandremembercomplexpictures.Anotheramazingabilityofpigeonsistheirsenseofdirection.Theycanfindtheirwayhomefromveryfaraway.Scientistsbelievepigeonsusethesun,theEarth'smagneticfieldandeventheirsenseofsmelltofindtheway.Inthepast,peopleusedpigeonstosendimportantmessagesoverlongdistances.Evenduringwars,pigeonssavedmanylivesbycarryingmessagesacrossdangerousareas.Pigeonsarenotjust“ratswithwings”assomepeoplecallthem.Theyareintelligent,loyalandhelpfulbirds.Nexttimeyouseeapigeoninthestreet,takeamomenttothinkaboutthewonderfulabilitiesithas.1.Whatdoestheunderlinedword“rare”inParagraph2mean?A.Common.B.Unusual.C.Easy.D.Boring.2.Howmanykindsofanimalsthatcanrecognisethemselvesinamirrorarementionedinthepassage?A.Two.B.Three.C.Four.D.Five.3.Whatdidtheexperimentwithpaintingsshowaboutpigeons?A.Theycanpaintbeautifulpictures.B.TheypreferPicassotoMonet.C.Theycanunderstandandremembercomplexpictur