2017-2018学年高中英语北师大版选修七习题Unit20课下能力提升（六）

Unit20课下能力提升(六)Ⅰ.根据首字母或汉语意思写出单词1．Whenhearingthefirealarm,theaudiencerushedtothenearestemergencye________．2．Poorthoughtheyare,thewomenstilld________alotofmoneytotheRedCrosseveryyear.3．Hepromisesmethathecan________(治愈)mebutIstilldoubthim.4.Farawayfromeachother,thetwosisters________(通信)everyweek.5．His________(坦率的)remarksmadehimaneasytargetfortheotherside.Ⅱ.单句语法填空1．I________(e)toseeyouwhenI________(run)intomybestfriend,Tom.2．________(look)outofthewindow,Isawsomestudentsplayingthere.3．Hewentoutandleftthebaby________(sleep)inbed.4．Withoutsolarradiation,animalsandplants________(die)．Ⅲ.选词填空bededicatedto,rangefrom,turnto,figureout,correspondwith,wrestlewith1．Themonument____________thememoryofthesoldierswhohaddiedthere.2．OrdinarypeoplesuchasyouandIhave____________thesepuzzlesoverthecenturies.3．Singlejourneyadultfaresusually____________D|S4toD|S13pertripdependingondistancestravelled.4．Thechildoften____________hismotherforfort.5．Ihave____________aforeignfriendandwewritetoeachotheronceamonth.6．Haveyou____________what'swrongwithyourcar?Ⅳ.课文缩写语法填空PIONEERSOFSCIENCEIfyouhadtochoosethesinglemostimportantdiscoveryofthe20thcentury,1.________havearealdilemmaonyourhands.Injust100years,theworldchangedpletely.Medicaladvancesranged1.________discoveringthecausesofdiseasesundermicroscopestosurgicalproceduresreplacingdiseasedorganswith2.________(donate)ones.3.________ibletosingleoutafew3.________(pioneer)ofthe20thcentury.Herearefiveofthem.Oneofthe20thcentury'spremierscientistswasAlbertEinstein.Inthesummerof1905,thisoutspokenyoungmanwasrockinghisone­year­oldbaby4.________hewassuddenlyinspired.“E＝mc2”wasborn.5．________(use)themosthigh­poweredtelescopeofthetime,hebeganthelong,slowprocessofexploringourgalaxy.EdwinHubblediscoveredsmallareasofmistwhichwere6.________factgalaxieslikeourownmillionsoflightyearsawayfromus.AlexanderFlemingsaw7.________bluemouldinthedisharoundwhichthebacteriahadbeendestroyed.Thisbluemouldwasinfactthenaturalformofpenicillin.DuringtheSecondWorldWar,whenFleming'sdiscoverywasfirsthelping8.________(cure)people,theUSNavywaslookingforwaysofimprovingtheaccuracyoftheirmissiles.Thenavyturned9.________Eckert,anengineer,andMauchly,aphysicist,towrestlewiththeproblemandproduceamachinewhichwastheworld'sfirstputertodothejob.10.________thebreakthroughsofthesepioneersinscienceandtechnology,whetherluckyorplanned,theworldasweknowittodaywouldhavebeenapletelydifferentplace.Ⅴ.阅读理解Accordingtoanewstudy,scientificbreakthroughsincreasinglyetoscientistswhoare45andolder.ResearchersfromOhioStateUniversityandNorth­westernUniversityexaminedtheageatwhichNobelPrizewinnersdidtheirprize­winningworkforawardsinphysics,chemistry,andmedicinebetween1901and2008.TheirstudyshowsthattheaverageageofscientistsmakingtheirNobelPrize­winningdiscoverieshasrisen.Thetrendwasveryobviousinallthesethreefields.InEinstein'sfield,theaverageageshiftedfrom36.9earlyinthe20thcenturyto50.3inrecentdecades.Inchemistry,theaverageageshiftedfrom36.1to46.3andinmedicinefrom37.6to45.0.“There'sthisfixedimageoftheyounggeniusdoingbreakthroughwork，”saidBruceWeinberg,co­authorofthestudy.“Butthat'snottheuniversalpattern,especiallytoday.”Sowhat'scausingtheshift?Weinbergandhisco­author,BenjaminJones,suggesttwolikelyfactors:changesinscientifictrainingstandardsandchangestothefoundationalknowledgewithinscientificdisciplines.InEinstein'sday,manyscientistsreceivedtheirhighestdegree(usuallyadoctor'sdegree)bytheageof25.Inallthreefieldsthatproportionhasdecreasedovertime,meaningthatmanyeventualNobelPrizewinnersarestartingtheircareerslater.Asthereismoreandmoreknowledge,scientistsmayneedlongertomasterthefundamentalsandfinallytomakeanewgreatcontributiontoafield,accordingtoWeinberg.Thesefindingsaremixednewsforscienceasawhole.Whilethestudymaycalmsomeworriesaboutouragingscientificworkforce,itstillindicatesaproblem．“Theresearchsuggeststhatittakeslongerandlongertomasterallthematerialneededtomakeittothescientificfrontier，”Weinbergsays.“Ifthat'sthecase,itmaymeanthatscientificprogresscouldslowdown.”Fortheyoung,ambitiousscientiststryingtoliveuptothefixedimageofgenius,Weinbergoffersthisadvice，“It'spossible,inprinciple,todogreatworkearlyinacareer,butIwouldtellyoungscientiststokeepgoing,eveniftheyhaven'thadabreakthroughyet.”1．Inwhichfieldwasthetrendmostobvious?A．Chemistry.B．Physics.C．Medicine.D．Biology.2．FromParagraph5,wecanlearnthat________．A．nowadaysitiseasiertoreceiveadoctor'sdegreeB．onlythosewhostarttheircareerslatercanwinaNoblePrizeC．thereislessscientifictrainingofferedtoyoungscientistsD．scientistsnowhavetomastermoreknowledgetomakeascientificbreakthrough3．Theunderlinedword“problem”inParagraph6referstothesituationthat________．A．thescientificresearchprogressmayslowdownB．adoctor'sdegreemaybelessvaluableC．thepresentscientifictrainingstandardsmaybetoohighD．theagingscientificworkforcemaymakenobreakthroughsinscience4．AccordingtowhatWeinbergsaidinthelastparagraph,youngscientistsshould________．A．bemorecarefulabouttheirworkB．bepatientwiththeirworkC．haveahighergoalD．starttheircareerasearlyaspossibleⅥ.任务型阅读Universitiesaroundthecountryaredoingeverythingtheycantobeegreencampuses.1.________，buttherearealsoitemsthateverystudentcandotocontributetoagreencampusandaneco­friendlylifestyle.Recycleeverything,especiallypaper!Theamountofpaperacollegestudentgoesthrougheveryyearisenormous.Thereareclassnotes,termpapers,studentnewspapers,graphsandpicturesprintedoutpluscountlessotherrandomitems.2.________，butthewayyouhandleallthepapercanreallyhelpcreateagreencampus.Lookforrecyclingboxesbydorms,restaurantsandclassrooms.Useyourprinterwisely.3．________.Thisisahugewaytosaveonpaper.Also,tosaveink,usethelowqualitysettingonfilesthatdon'tneedtolooktoonice.Lastly,thinkaboutwhatyou'reprintingout.Ifyoucanshowsomeonethewebsiteonascreen,doit.Youdon'tneedtoprintout.Limittheuseofpapernapkins(餐巾)．We'renottellingyoutoeatcleaner,butwe'retellingyounottooverdoit.Generally,alotoffastfoodiseatenbycollegestudents,whichmeansalotofnapkinsgetgrabbed(拿取)onthewayout.4.________．Walk,bike,andlimittheuseofyourcar.Mostcampuses,especiallythosethataretryingtobeeamoreeco­friendlycampus,haveprettygoodpublictransportation.5.________.Walkingorbikingwillhelpmakeyourcampusgreen.Ifyoumustdrive,trytofindotherswhoneedtoaswell,andcarpooltoreducepollution.A．LimittheamountyoutakeB．BuyasmanyrecycledgoodsaspossibleC．Weknowthatthesethingscan'tbeavoidedD．ThereareplentythingsthatuniversitieshavebeendoingE．Ontopofthat,almostalluniversitiesarepedestrian(行人)friendlyF．Therefore,carpoolinghasbeemoreandmorepopularthesedaysG．Teachersusuallydon'tmindiftheyreadpapersthatareprintedonbothsidesofthepaper答案：Ⅰ.1.exit2.donate3.cure4.correspon