北大2015年春季《大学英语1》第4组作业答案

北大15年春《大学英语1》在线作业四高分答案1.-Isitpossibleforyoutoworklatetonight?-_______A.A.Ilikeit.B.B.I'lldothat.C.C.I'dloveto.D.D.Ithinkso.答：D2.-MayItakeyourordernow?-_________A.A.No,I'mintroublenow.B.B.Yes,wetakeorders.C.C.Yes,I'dlikeadishofchicken.D.D.No,Idon'thaveanorder.答：C3.--Shallwesituphereonthegrassordowntherenearthewater?--________A.A.I'dratherstayhereifyoudon'tmind.B.B.Sorry,Idon'tlikeneither.C.C.Certainly,whynot?D.D.Yes,welikethesetwoplaces.答：A4.-WhatcanIdoforyou,madam?-______________A.A.Thankyou.B.B.Youcan'thelpme.C.C.Iwanttobuyacamera.D.D.I'mgladtohearthat.答：C5.-Whydidn’tyoucometomybirthdaypartyyesterday?-________A.A.Excuseme,myfriendsentmeaflower.B.B.Fine,Inevergotobirthdayparties.C.C.Ha…ha,Ilikeswimming.D.D.Sorry,butmywifehadacaraccident.答：D6.-Thankyouforinvitingme.-_______A.A.Ireallyhadahappytime.B.B.Oh,it'stoolate.C.C.Thankyouforcoming.D.D.Oh,soslowly?答：C7.--Howdoyoudo?Gladtomeetyou.--_________A.A.Fine.Howareyou?B.B.Howdoyoudo?Gladtomeetyou,too.C.C.Howareyou?Thankyou!D.D.Nice.Howareyou?答：B8.--Hi,isMarythere,please?--_____A.A.Holdon.I'llgether.B.B.No,sheisn'there.C.C.Yes,sheliveshere.D.D.Yes,whatdoyouwant?答：A9.-MayIborrowyourumbrellaforamoment?--______________.A.A.No,youcan'tdoitB.B.Sorry,butyoumaynotC.C.Well,IamafraidIamgoingtouseitmyselfD.D.Ofcoursenot.I'mgoingtoneeditmyself答：C10.-_____________-Verywell,thankyou.Andyou?A.A.Goodnight.B.B.Howdoyoudo？C.C.HowdoyoulikeChinese？D.D.Howareyou？答：D11.IgaveGraceapresentbutshegavemenothing________.A.A.inreturnB.B.inturnC.C.inadvanceD.D.inshort答：A12.Ididn’tknowwhattodo,butthenanideasuddenly________tome.A.A.appearedB.B.happenedC.C.occurredD.D.emerged答：C13.Theexplorerssailedontheoceanfortwoweeksand________foundthemysteriousland.A.A.generallyB.B.eventuallyC.C.extremelyD.D.gradually答：B14.Heaskedthewaiter________thebill.A.A.onB.B.ofC.C.forD.D.after答：C15.Thisboyisabletorepeatfrommemory______200shortpoems.A.A.uptoB.B.uptillC.C.astoD.D.asfar答：A16.ItissaidthatthebesttimetovisitthecityisJuneorJuly,________theSouthAmericanwintercoolsthecity.A.A.whereB.B.whichC.C.onwhichD.D.when答：D17.Iamnotusedtospeaking________public.A.A.inB.B.atC.C.onD.D.to答：A18.Idon’tknow_______todealwithsuchmatter.A.A.whatB.B.howC.C.whichD.D./答：B19.Neverbefore_______seesuchaterriblecaraccidentontheroad!A.A.IhaveB.B.haveIC.C.IdidD.D.didI答：D20.Tom,whatdidyoudowithmydocuments?Ihaveneverseensucha_____anddisorder!A.A.massB.B.messC.C.guessD.D.bus答：B21.Whatmakesapersonascientist?Doeshehavewaysortoolsoflearningthataredifferentfromthoseofothers?Theansweris“no”.Itisnotthetoolsascientistusesbuthowheusesthesetoolsthatmakeshimascientist.Youwillprobablyagreethatknowinghowtouseapowerisimportanttoacarpenter.Youwillprobablyagree,too,thatknowinghowtoinvestigate,howtodiscoverinformation,isimportanttoeveryone.Thescientist,however,goesonestepfurther,hemustbesurethathehasareasonableanswertohisquestionsandthathisanswercanbeconfirmedbyotherpersons.Healsoworkstofittheanswershegetstomanyquestionsintoalargesetofideasabouthowtheworldworks.Thescientist’sknowledgemustbeexact.Thereisnoroomforhalfrightorrightjusthalfthetime.Hemustbeasnearlyrightastheconditionspermit.Whatworksunderonesetofconditionsatonetimemustworkunderthesameconditionsatothertimes.Iftheconditionsaredifferent,anychangesthescientistobservesinademonstrationmustbeexplainedbythechangesintheconditions.Thisisonereasonthatinvestigationsareimportantinscience.AlbertEinstein,whodevelopedtheTheoryofRelativity,arrivedatthistheorythroughmathematics.Theaccuracyofhismathematicswaslatertestedthroughinvestigations,andEinstein’sideaswereshowntobecorrect.Ascientistusesmanytoolsformeasurements.Thenthemeasurementsareusedtomakemathematicalcalculationsthatmaytesthisinvestigations.Whatmakesascientistaccordingtothepassage?________单选题A.A.Thetoolsheuses.B.B.Thewayheuseshistools.C.C.Hiswaysoflearning.D.D.Thevarioustoolsheuses.答：BTheunderlinedpartinthepassageshows_______.单选题A.A.theimportanceofinformationB.B.theimportanceofthinkingC.C.thedifferencebetweenscientistsandordinarypeopleD.D.thedifferencebetweencarpentersandpeoplewithotherjobs答：CAsoundscientifictheoryshouldbeonethat_________.单选题A.A.worksnotonlyunderonesetofconditionsatonetime,butalsounderthesameconditionsatothertimesB.B.doesnotallowanychangesevenunderdifferentconditionsC.C.canbeusedformanypurposesD.D.leavesnoroomforimprovement答：ATheauthorquotesthecaseofAlbertEinsteintoillustrate__________.单选题A.A.thatmeasurementsarekeystosuccessinscienceB.B.thataccuracyofmathematicsC.C.thatinvestigationsareimportantinscienceD.D.thatthemathematicalcalculationsmaytesthisinvestigations答：CWhatisthemainideaofthepassage?________单选题A.A.Thetheoryofrelativity.B.B.Exactnessisthecoreofscience.C.C.Scientistsaredifferentfromordinarypeople.D.D.Exactnessandwaysofusingtoolsarethekeystothemakingofascientist.答：D22.Thewordhorsepower（马力）wasfirstusedtwohundredyearsago.JamesWatthadmadethefirstwidelyusedsteam（蒸气）engine.Hehadnowayoftellingpeopleexactlyhowpowerfulitwas,foratthattimetherewerenounitsformeasuring（测量）power.Wattdecidedtofindouthowmuchworkonestronghorsecoulddoinoneminute.Hec