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1.W:Istherescuecrewstilllookingforsurvivorsoftheplanecrash?M:Yes,theyhavebeensearchingtheareaforhours,buttheyhaven'tfoundanybodyelse.Theywillkeepsearchinguntilnightfalls.Q:Whatdowelearnfromtheconversation?2.M:Howmanystudentspassedthefinalphysicsexaminyourclass?W:Forty,butstillasmanyas20percentoftheclassfailed,quitedisappointing,isn'tit?Q:Whatdoesthewomanthinkoftheexam?3.W:Lotsofpeopleenjoydancing,doyou?M:Believeitornot,thatisthelastthingIwanttodo.Q:Whatdoesthemanmean?4.W:Jane,Iamhavingdifficultywithallthetheoreticstuffwearegettinginourcomputercourse.M:Oh,thatpartIunderstand.WhatIcan'tfigureoutishowtomakeitworkinourprogram.Q:Whatistheman'sproblem?5.W:DidyouseeMarysomewherearound?M:Yes,sheisinthecampusbank,applyingforthestudent'sloan.Q:WhatwasMarydoing?6.W:Thespaceshuttleistakingofftomorrow.M:Iknow,thisisanotherroutinemission.Itisfirstflightwithfouryearsago.Q:Whataretheytalkingabout?7.M:Whenarewesupposedtosubmitourprojectproposals,Jane?W:Theyareduebytheendoftheweek.We'veonlytwodaysleft.We'lljusthavetohurry.Q:Whatdoesthewomanmean?8.W:WhenIgoonadiet,Ieatonlyfruit,andthattakesoffweightquickly.M:IprefertoeatwhateverIwant,andthenrunregularlytoloseweight.Q:Howdoesthemancontrolhisweight?9.W:John,canyoutellmewhatinthebookinterestedyoumost?M:No,well,nothingspecific,butIlikeitoverall.Q;Whatdidthemanthinkofthebook?10.W:HowdoyoulikethecarIjustbought?M:Well,itseemstorunwell,butIthinkitneedsanewpaintjob.Q:Whatdoesthemanthinkofthecar?Passage1¡¡¡¡Nilrikmanandothersofthehalfwayresearchgrouphavedonesomeresearchintothedifferencesbetweenaverageandgoodnegotiators.Theyfoundnegotiatorswiththegoodtraitrecordandstudiedtheminaction.Theycomparedthemwithanothergroupofaveragenegotiatorsandfoundthattherewasnodifferenceinthetimethatthetwogroupsspentonplanningtheirstrategy.However,thereweresomesignificantdifferencesonotherpoints.Theaveragenegotiatorsthoughtintermsofthepresent,butthegoodnegotiatorstookalong-timereview.Theymadelotsofsuggestionsandconsideredtwicethenumberofthealternatives.Theaveragenegotiatorssettheirobjectivesassinglepoints.Wehopetogettwodollars,forexample.Thegoodnegotiatorssettheirobjectivesintermsofrange,whichtheymightformulateasWehopetogettwodollars,butifwegetonedollarandfifty,itwillbeallright..Theaveragenegotiatorstriedtopersuadebygivinglotsofreasons.Theyusealotofdifferentarguments.Thegoodnegotiatorsdidn'tgivemanyreasons.Theyjustrepeatedthesameones.Theyalsodidmoresummarizingandreviewing,checkingtheywereunderstoodcorrectly.11.Whatdogoodnegotiatorsandaveragenegotiatorshaveincommon?12.Accordingtothespeaker,whatwouldgoodnegotiatorsdo?13.Accordingtothespeaker,whatdoestheaveragenegotiatorusuallydo?Passage2¡¡¡¡Tomostofussharksarethemostdangerousfishintheseaandtheyattackhumans.However,accordingtoDoctorClark,whohasstudiedthebehaviorofsharksfortwelveyears,humansarenotnormallyontheshark'smenu.Whatdosharksfeedon,mainlyfishandotherseaanimals?DoctorClarkalsofoundthatsharksdon'teatasmuchfoodaspeoplethink.Forinstance,anine-year-oldsharkonlyneedstwopoundoffoodadaytokeephealthy.Butshesays,sharkssometimesstarveandatothertimestheyfillthemselveswithwhattheyhavekilled.Aroundtheworld,thereareonlyaboutonehundredsharkattacksonhumanseachyear,tenofwhichprovedfatal.Butconsiderthis,intheUSalone,aboutthreemillionpeoplearebittenbydogseachyear.Ofthese,thirtypeopledie.Ifsharksbiteyou,saysDoctorClark,thereasonisusuallybecauseofthemistakeyounaturalfood.Forexample,sayyouwentunderwater-fishingandsawashark,youcouldbeintrouble.Thesharkmightgofortheinjuredfishyouhadattackedandtakeabiteofyouatthesametime.Ifyougointoashark'sterritoryandthreatenit,itmighttrytobiteyou.That'sbecausesharksareterritorialandtendtoguardtheirterritory.Likedogs,theyprotecttheareatheythinkistheirown.14.Whatdoesthepassagesayabouttheeatingbehaviorofsharks?15.Whenmightasharkattachhumans?16.Whatdowelearnfromthepassageaboutsharks?Passage3¡¡¡¡SciencefictionwritershaveoftenimaginedhumansgoingtoliveontheMars.Butthesedays,scientistsaretakingtheideaseriously.Ithasagreatdealtorecommendit,sinceitmightsolvetheproblemofovercrowdingontheearth.Butobviously,itwouldnotbeworthmakingtheeffortunlesspeoplecouldlivetherenaturally.Iftheatmospherewerelikethatoftheearth,thismightbepossible.Butinfactitismostlycarbonoxidite.Apartfromthat,thereareotherproblemstobeovercome.Forexample,thetemperaturewouldhavetoberaisedfrom6degreesbelowzeroto15degreesaboveit.ScientistswhostudyMarshavelaiddowntheprogramthattheycanfollow.Tobeginwith,theywillhavetofindoutwhetherlifehaseverexistedontheplanetofMarsinthepast.Secondlytheywillhavetomakeareliablemapofitssurface.Andfinally,theywillhavetomakealistofthegases.Aboveall,theywillhavetodiscoverhowmuchnitrogenitpossesses.Sincenitrogenisfourfifthsoftheairwebreathe,theyaresurprisingoptimisticaboutraisingthetemperatureonMarsandbelieveitcouldbedowninhundredyears.Itwilltakeabitlonger,though,totransformtheatmospheresothathumanbeingscouldlivethere.Scientistsestimatethiswilltakeonehundredthousandyears.17.WhyarescientistsinterestedinMars?18.WhatistheoneofthethingsthatmustbedoneifamancanliveonMars?1