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1、課時訓練(四)　Units5—8(七下) (限時:30分鐘) Ⅰ.單項選擇 1.[2019·原創(chuàng)]IthinktheHUAWEIP20worksas　　　　astheiPhone8.Ilikeitverymuch.? A.good B.well C.bad D.badly 2.[2017·黃岡]—Ourclassroomissoclean.Who'scleanedit,LiFei? —Sorry,Idon'tknow.Ithink　　　　diditbeforeclass.? A.somebody B.nobody C.everyone D.

2、anyone 3.[2018·黃岡]—DidQingdaoshow　　　　totheworldduringtheSCOSummit(上海合作組織峰會)?? —Sure!Herbeauty,hightechnologyandrapiddevelopment. A.somethingspecial B.anythingspecial C.specialsomething D.specialanything 4.[2018·淮安]Thegirlhasto　　　　hergrandmabecauseherparentsareworkinginanothercity. ? A.lo

3、okat B.lookinto C.lookthrough D.lookafter 5.[2018·德陽]Chinahas　　　　populationintheworld. ? A.big B.thebigger C.thebiggest D.biggest 6.[2018·上海]MrZhouisgoodatcookingandhehasdecided　　　　hisownrestaurant.? A.open B.opened C.toopen D.opening 7.[2018·連云港]—Howamazingthisrob

4、otis! —Wow,ithasvideocamerasinitseyes,soit　　　　“see”andinteractwithpeople. ? A.may B.can C.must D.should 8.—What'syourproblem? —Ihavetrouble　　　　thesewordsinEnglish.? A.say B.saying C.tospeak D.speaking 9.[2018·河北]—Thebreadisreallydelicious. —Thankyou.I　　　　itmyself.? A.make B.

5、made C.willmake D.ammaking 10.[2018·宿遷]—　　　　fineweatheritis!Shallwegohikinginthehills?? —Whynot? A.What B.Whata C.How D.Howa Ⅱ.[2018·揚州二模]完形填空 Atthepicnic,TomandBeckyvisitedthecaveswiththeotherchildren.However,theyhadlefttheirfriendsbehindbeforetheynoticedthat.Theytooktheir　11　andwalk

6、eddownasmalltunnel.Theymadesome　12　onthewall,whichwouldhelpthemfindtheirwayback.Alargenumberofbatswerehangingontheroof.Thebatsdidnotlikethecandlelightand　13　thechildren.TomandBeckywereso　14　thattheykeptrunninguntiltheyescapedfromthebats.? “ItisalongtimesinceI　15　theothers.Let'sgoback,Tom,”saidBecky

7、.? Theytriedtofindawaybackwithoutgoingthroughthecavewithbats.　16　,theyfailed.Bothchildrenbegantoshout　17　,butnobodyanswered.? Beckybegantocry,“Tom,we'relost.We'll　18　getoutofthisawfulplace!”Tomtriedto　19　herandgavehersomecakeshehadtakenfromthe　20　.Theywentonshoutingforhelp,withoutanyreplyreachingt

8、hem. ? Suddenly,theyheardsomebodyshoutingfaraway.Theyshoutedbackandtriedtogetcloser,buttherewasabigholeaheadofthemandtheycouldnotgo　21　it.Theshoutingwentfurtherawayuntilitwasgone. ? Tomdidn't　22　hope.Hetriedanothertunnel.Withallhis　23　,hegotBeckyandhimselfoutatlast　24　hewasveryhungry,tiredandfrigh

9、tened.? Theyhadbeeninthecaveforthreedays.TomsawaboatontheriverandaskedthepeopleinittotakethemtoSt.Petersburg. Thepeopleinthetownwereveryhappytoseethe　25　children.Bothofthemwereveryweakandhadtostayinbedforafewdaystogetstrongagain.? Whatafantasticexperienceforthetwo!Lifewillneversaynotothosewithgre

10、atcourage! 11.A.food B.drinks C.candles D.flashlights 12.A.pictures B.notes C.marks D.colours 13.A.attacked B.admired C.attracted D.avoided 14.A.pleased B.frightened C.nervous D.satisfied 15.A.caught B.found C.heard D.followed 16.A.UnpleasantlyB.Unluckily C.Unexpectedly D

11、.Uncertainly 17.A.insurprise B.withexcitement C.inconfidence D.withfear 18.A.surely B.never C.seldom D.proudly 19.A.stop B.refuse C.please D.calm 20.A.cave B.tunnel C.picnic D.boat 21.A.past B.down C.up D.through 22.A.givein B.giveup C.giveout D.giveaway 23.A.effor

12、t B.effect C.influence D.information 24.A.if B.although C.unless D.because 25.A.excited B.strict C.serious D.lost Ⅲ.[2018·連云港]閱讀理解 Batsaretheonlymammalsthatcanflyagreatdistance,buttheyhaveanotherability.Manybatslivealongertimethanotheranimalsoftheirsize. Europeanresearchersarestud

13、yingbatstounderstandwhytheylivesolong.Theyhopetomakediscoveriestofighttheagingprocess(過程)inhumanbeings. Lastweek,thegroupofscientistssaidtheyhadfoundimportantbiologicalqualitiesinsomebatspecies.Thegroupstudiedbatchromosomes(染色體),alineofgenesfoundinthenucleus(核)ofcells.Thescientistsweremostintereste

14、dinpartsconnectedtotheendsofthechromosomes.Theyarecalledtelomeres(端粒).Telomeresprotecttheendsofchromosomes,whichshorteneachtimeacelldivides.Scientistsbelievethisshorteningprocesscausescellstobreakdown.　　　? AreportonbatswaspublishedthismonthinthejournalScienceAdvances. AmongtheleadersofthestudywasE

15、mmaTeeling,abiologistwithUniversityCollegeDublininIreland.Teelingsaidstudyinglong-livingmammalsthathavedevelopedwaystofightagingisanotherwaytoprovethemolecular(分子)basisofextendedhealthlength.Sheaddedthatstudyingbatsmadescientistsabletolearnmoreabouttheprocessesthatdrivehealthyaging. TheEuropeanrese

16、archersstudied493batsfromfourbatspecies.Thegroupusedinformationthathadbeengatheredovermorethan60years.Oftheseanimals,thegreatermouse-earedbatgenerallylivedthelongest,anaverageof37years. Thescientistssaidthisandarelatedspecies,whicharegroupedtogetherunderthenameMyotis,hadtelomeresthatdidnotshortenwi

17、thage.AnotherMyotisbatholdstherecordforoldestage,reaching41years. Thescientists'findingssuggestthatthesebats'cellshavetheabilitytokeepandrepairtheirtelomeres.This,theysaid,helpsguardagainsttheagingprocess.Basedonitsbodysize,abatlikethegreatermouse-earedbatwouldbeexpectedtolivefouryears.But,thesemam

18、malshavebeenfoundtolivenearly10timeslongerthanthat. Thescientistsfoundthateighteenofthesearebats.TheonlyexceptionisanunusualAfricanrodent,thenakedmolerat. 26.WhichsentencecanbeputattheendofParagraph3? A.Thismakesscientistsabletostudybats. B.That'swhybatscanflyagreatdistance. C.Theysaythisiswhat

19、causesaging. D.Theydiscoverthecellsconnectedtohumans. 27.Whydosomespeciesofbatsliveaverylongtime? A.Becausetheyhavealineoflong-livinggenesoutofthecells. B.Becausetheircellshavetheabilitytokeepandrepairtheirtelomeres. C.Becausetheyhaveanotherabilitytolivelongerwithoutanyfoodorwater. D.Becausete

20、lomeresprotecttheendsofchromosomestostopcellsdividing. 28.Theunderlinedword“that”refersto　　　　.? A.fouryears B.bodysize C.theagingprocess D.theabilitytorepair 29.What'sthebesttitleofthepassage? A.DifferencesBetweenLong-LivingAnimals B.AScienceReportonChromosomes C.DoBatsHoldtheSecrettoLong

21、Life? D.AreHumansandBatsSimilarinProtectingThemselves? Ⅳ.從方框中選擇恰當的詞或短語并用其正確的形式填空(每個詞或短語只能用一次) ascarefulas;hearfrom;doone'sbest;beafraidof; sudden;growup 30.Don't　　　　　　　dogs.Theyareveryfriendly. ? 31.Ihaven't　　　　　　　　mysonforalongtime.Imisshimverymuch. ? 32.　　　　　　　　,Iheardababycryinginthenext

22、room. ? 33.Ifyoudon't　　　　　　　　,youwillfallbehindothers. ? 34.Marywantstobeateacherwhenshe　　　　　　　　　　.? 35.Lindadoesherhomework　　　　　　　　Jim.? Ⅴ.根據所給漢語和句子意思,用英語補全句子 36.Inorderto　　　　　　　　(撲滅)thebigfire,hehadtorushintothehouse.? 37.　　　　　　　　(多么漂亮)caritis!Whendidyoubuyit?? 38.[2018·連云港二模]Afterthelonghi

23、king,everyoneis　　　　　　　(太虛弱不能走更遠).? 39.Lilysits　　　　　　　　(在……旁邊)Fangfang.? 40.Ilookedforwardto　　　　　　　　(收到……的來信)allofyou.? 參考答案 Ⅰ.1.B　2.A 3.B　something用于肯定句或表示請求的疑問句中,anything用于疑問句或否定句中。形容詞修飾不定代詞要位于不定代詞之后。故選B。 4.D　lookat意為“看”;lookinto意為“調查”;lookthrough意為“瀏覽”;lookafter意為“照顧,照料”。根據后半句“因為她的父母在另一個城市

24、工作”可知,這個女孩不得不“照顧”她奶奶。故選D。 5.C 6.C　decidetodosth意為“決定做某事”。故選C。 7.B　may意為“可以”,表示肯定許可;can意為“能;能夠”,表示能力;must意為“一定;必須”;should意為“應該”。因為“眼睛里有攝像頭”,所以具備“看”的能力。故選B。 8.B 9.B　根據語境可知,“做面包”的動作發(fā)生在過去,應用一般過去時。故選B。 10.A Ⅱ.11—15　CCABC　16—20　BDBDC　21—25　ABABD Ⅲ.[主旨大意] 本文是一篇科普說明文。文章講述了歐洲科學家研究了作為哺乳動物,蝙蝠壽命長的原因。同時還

25、列舉了幾種不同蝙蝠壽命長的原因。 26.C　信息還原題。根據第三段中的“Scientistsbelievethisshorteningprocesscausescellstobreakdown.”可知,這個縮短的流程會引起細胞破損,會對壽命造成影響,故選C。 27.B　細節(jié)理解題。根據倒數第二段中的“Thescientists􀆳findingssuggestthatthesebats􀆳cellshavetheabilitytokeepandrepairtheirtelomeres.”可知,這些蝙蝠長壽的原因是它們的細胞能保持和修復它們的端粒,故選B。

26、28.A　細節(jié)理解題。根據倒數第二段中的“Basedonitsbodysize,abatlikethegreatermouse-earedbatwouldbeexpectedtolivefouryears.”可知,此處that指代fouryears,故選A。 29.C　主旨大意題。本文主要講述的是科學家研究蝙蝠長壽的原因,故選C。 Ⅳ.30.beafraidof　31.heardfrom　32.Suddenly 33.doyourbest　34.growsup　35.ascarefullyas Ⅴ.36.putout　37.Whatabeautiful 38.tooweaktogo/walkanyfurther　39.nextto 40.hearingfrom 6