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九年级下册英语练习unit31学校:姓名班级考号
一、词汇运用顺畅）.
1.Kelly is a smartsecretary,who keepsthe officerunning
02.Its carelessof him to throwaway thoseimportant（文件）・（电池）
3.He boughttwo newon hisway homelast night.（不挂断）.
4.A telephoneoperator askedhimto（轮子）
5.The robotmove faston andknock mythings often.
二、完形填空阅读短文，从每小题所给的、、三个选项中，选出一个能填入空白处的最佳选项A BCOn thedark nightof May5th in the year1110,the moonslowly disappeared.6the starscould beclearlyseen,the mooncouldnt beseen untilnearly daytime.People7their worriesabout it,but nobodyknewwhat happened.For over900years,scientists havebeen tryingto8what causedthe strangeevent.However,almost9was able to comeup withany ideas.（火山）.Now scientistshave finallyfound the10—volcanoes Ithappened inJapansMount Asama,from thebeginning ofSeptember tothe endof Octoberin1108,which lasted（灰尘）nearly two11,As aresult,a lotof ashwas produced.It moved12towards the sky.At last,the ash13people seeingthe moon.But14did scientistsdiscover thisThey lookedat theice15Greenland andAntarctica.The huge（气候）ice was16to scientificstudies.It could17what theclimate waslike along periodof timeagoand whatwas in the airat thattime.Scientists noticedthat therewas morevolcanic ashin the18aroundMay5th,
1110.（树木年轮）Tree ringswere also19in gettingthe answer.The ringschanged withthe climatechange.Scientists wereable tosee that the year1109was acold andrainy yearand people20to getenoughfood.This supportedthe ideathat avolcano hadhappened.
6.A.Because B.Though C.Unless
7.A.expressed B.remained C.explained
8.A.find outB.give outC.clear out
9.A.nobody B,somebody C.anybody
10.A.purpose B.answer C.position
11.A.days B.weeks C.months
12.A.quietly B.certainly C.slowly
13.A.prevented B.suggested C.kept
14.A.how B.why C,where
15.A.through B.into C,from
16.A.useful B.dangerous C-strange
17.A.divide B.offer C.show
18.A.rain B.ice C.wind
19.A.meaningless B.helpful C.impossible
20.A.refused B,decided C.failed
三、阅读理解“I sawsomeone wholooked justlike you!”“You looklike afriend ofmine.”Youve probablyheard thatbefore.It mayseem obviousthat weall havea doppelganger-he orshe isntrelated tous butlooks likeus一somewhere in the world.But noone wasabletoprove ituntil now.According to a newstudy,doppelganger doexist,and theymay sharemore thanjust looks.Canadian artistFrancois Brunellehas beentaking photosof totalstrangers wholook alikesince
1999.Scientists inSpain studied32pairs ofBrunelles models.They comparedblack-and-white photosof the32pairs using3different kindsof facial（面部识别软件）.recognition softwareAll of the peoplealso tookDNA testsand answeredquestionsabout theirlives-for example,about theirdiet andwhether theyhad pets.Using allthe facialrecognition software,the scientistsfound that16of the32pairs wereverysimilar.After theystudied theDNA of the64people,they foundthat9of the16very similarpairs also（遗传变异）.had someofthesame DNA,with19,277shared geneticvariations（身体特征）They alsofound the16pairs sharedphysical characteristicssuch asweight andheight,as wellas habitsand behaviorlike smokingand education.It meansthatthe shared genesaffectnot onlylooks,but alsoliving habits.Manel Esteller,who wasa memberoftheresearch team,said,As thepopulation ofthe worldisso large,it isnatural thatthere will be strangerswith similarfaces andsimilar DNA.”
21.How doesthewriter startthe passageA.By givingexamples.B.By askingquestions.C.By showingthe results.
22.What isdoppelgangerA.A placeintheworld.B.A look-alike stranger.C.A friendof someone.他
23.What doesthe underlinedword“a ctin Paragraph8mean影响要求改变A.B.C.
24.We canlearn fromthe studythat.A.thesharedgenes onlyinfluence ourlooksB.Francois Brunelleisafamous AmericanartistC.Esteller thoughtthe resultwas believable
四、信息还原阅读下面短文，完成表格填空（理论）Recently,the20-minute parktheory isa hottopic onsocial media.This theorysuggeststhat a20-minute visittoa park canhelp peoplefeel better,according tothe InternationalJournal ofEnvironmentalHealth Research.Whether youexercise or simply takea walkinthepark,it canhelp you（使受益）relax.Actually,it isnature thatbenefits us.How doesnature havea goodinfluence onour bodyand mindStudies showthat whenwe areinnatural environments,our heartrate andblood pressurereduce.Also,being outdoors,seeing trees,hearing birdssongs,looking atthesky,and feelingin connection with naturehelp tolower peoplesstress,reduce anxietyand increasetheir confidence.What canwe doto connect with natureIn fact,nature isall aroundus.For example,we couldtakeup anew hobbyor activitythat allowsus tospend moretime outside,such asbird watching,gardening,orsimplygoing for a runor walkinthepark or the forest.Changing the way to school orworkcould alsomake adifference.We willcertainly benefiteven fromjust walkingtowork through a parkoraquieter areawith moretrees.Many peopleare makinga closeconnectionwithnature.Huang Bingbing,an officeworker inShenzhen,is oneof them.There aremany communityparks now.She isused tovisiting thesmall parknearher companyduring herweekday lunch breaks.On thatgrass field,I couldconnectwithlivingplants andanimals,allowing meto havea freshmind andforget aboutthe stressfrom workfor awhile,“Huang said.Lately the20minute parktheory hasenjoyed popularityonline.According toit,people can25,walk ordo otherthings ata parkfor20minutes torelax.Thats because26is goodfor bothbody andmind.To connectwith it,we justneed tospend moretime outsidelike inaparkortheforest.Besides,itwill be27helpful ifwe walkthroughaquieter placewith moretrees onthewaytoschoolor work.28thecommunity parkduring thelunchbreakis alsoa niceway.Maybe youwill forgetabout stressand yourmindwillbe29after yourstay.Have atry!。
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