新世纪大学英语综合教程4课后答案解析

Unit11.Ifyouhadhadasparkofconsiderationforyourfamily,youwouldn'thavetakensomanystupidrisks.2.Duetothelackofanadequatelaborforce,evenwomaninthisvillagewerecompelledtoworkinthecoalmines.3.Wewentthroughlovelycountrysidewithgreatmountains,someofthembeautifulandgreenandwooded,whileothersbareandwild.4.Thecleanertookoffhiscoatandbegantoscrapetheashesfromthefurnacewithhisbarehands.5.Peopleinthatareaarealreadythreatenedwithenvironmentdestructionsince60%oftheforesttherehasbeendestroyed.6.Theautocompanyhasseenahugeincreaseintheoutputofprivatecarsthisyearduetotheimprovedworkingefficiency.7.Undersevereattackfromenemyaircraft,thetroopswereforcedtoretreatfromthefront.8.WhenIcameuptoagiraffelyingonthegrasses,Ifoundthatithadbeenkilledwithaspeartippedwithpoison.9.Hestayedeightdaysinanopenboatwithnofood,andhewasstillalive;hissurvivalwasamiracle.10.Survivalofthefittestisaneternaltruthofnature.11.Hisheartsankwhenhesawthefreshpileofmails,memosandtelephonemessagesonhisdesk.12.Themilitarygovermentrefusedtotransferpowertoademocraticallyelectedciviliangovernment.13.Inthatareanearlysixmillionpeopleareaffectedbythedroughtandthecivilwar,andthereisarealdangerofmassstarvation.14.Postalservicepersonnelwhoareseverelyirresponsiblepurposelydelaysendingmail,therebygivingrisetogreatlossofpublictrust.15.Withtheincreaseinthenumberofforeignfundedenterprises,variouskindsoffinancialdisputeshaveemerged.16.Theearthquakemaytriggerlandslidesthatcausegreatdamageandlossoflife.17.Deforestingandglobalwarmingthreatentoruinthecurrentandfuturestateofourenvironmen.18.Itwasreportedthatalmost7millionlitersconsumedduringthe16-daybeerfestivalingermanythatyear.19.Onabitterlycoldnight,theonlyshelterhecouldfindwasthehollowtrunkofagreattree.1.Shortafterthegoverment'snewpolicywasputintoeffect,theeconomyofourcountrybegantoshowsignsofrecovery.2.Weknowwellwhatdifficultieswehadtocopewithinbringingourworktoasuccessfulconclusion.3.Shelivesinfearofgettinginjuredandneverparticipatedinanyviolentsportsgames.4.Itlookslikethissnowwillstopthefoodsuppliesandweshallbehungryforatime,butwe'venochoicebuttotoughitout.5.Manytreesinthisareahavebeencutdowntomakeroomforbuildings,whichhasworsenedourlivingenvironment.6.Inordertoavoidpossibleinfectionbytheunknowviruses,researchersareprotectedfromheadtofootwithcaps,facemasksandwhitegowns.7.Despitethewarmwearhertheexplorerssearchedoutsomesnowonthenorthernslopeandboileditfordrinkingwater.8.Startingbare-handed,youhavebuiltupsomanysteelplants.thisisnothingshortofmiraculous!9.Asyetwehave'tfelttheneedforanyextrahands,butitsonlyamatteroftime.10.Whileonecannotchooseonesbirthplace,onecancertainlydecide,basedonwhatonehasexperienced,thebestplacetosettlein.11.Parentswhospendtimeandmonyteachingtheirchildrenmusic,cantakeheartfromanewcanadianstudy.whichshowsyoungchildrenwhotakemusiclessonshavebettermemoriesthantheirnonmusicalpeers.Unit21Sudiesshowthatifaworkingenvironmentispleasant,productivityincreases.2Privatespacetravelisarelativelynewphenomenon.It’sdifficultatthemomenttoassessitseffects.3Alllofusneedtobuildupralationshipswithothersunlesswechoosetoliveincompleteisolationfromtheoutsideworld.4Soncesendingherchildtothekindergarthen,shehasbeendelightedtoseeagradualchangeintheboyscharacter;heseemslessself-centerednow.5Asanactiveenvironmentalist,Davishasearnedareputationasanoutspokenopponentofanykindofnuclearwastedumpingatsea.6Quillswerethechiefwritingtoolfromthe6thcenturyuntiltheadventofsteelpensinthemid19thcentury.7Dpyouthinkitwilleverbepossibletoalterhumangeneticcodeinordertoproducetheperfecthumanbeing?8Intheendhersheercompetenceandprofessionalismwonuniversalrespectwithinandoutofthegovernment.9hispoliticalviewsareratherextreme;Ihatetodiscussanythingwithhim.10Thecheapperfumeyouseeonspecialofferinpetrolstationsoftensmellsnastyafteracoupleofhours.11Theconsumerboomofthe1980sledtoanexplsionofshoppingcentredevelopmentinbigcitiesaroundthecountry.12Youshouldnotuseyoursfaithfullyitstooformalforthiskindofpersonalletter.13.Accordingtoasurveryamong1000residents,garbagecollectionserviceinthecityisfarfromsatisfactory.14Thecostoffoodandclothinghascomedowninrecentyears.Similarly,fuelpriceshavefallenquiteconsiderably.15Thetechiclansareworkinghardtomodifythedesignofthenewcartomakeitmorecompetitiveintheoverseasmarket.16Inmychildhoodmemories,wewerelivingaroughbuthappylife,withnoluxuriestospeakof.1Thetworunnersreachedthefinishlinealmostatthesametime;whocameinfirstwasindistinguishabletothenakedeye.2Asaresultoftherecentfinancialcollapse,manypeoplearestruckwithworthlessinvestments.3Thesurveysuggeststhatmanycollegestudentsdon’tknowforcentainwhatkindofjobissuitableorthem.4Youcanaskhimagainifyoulike,butitwouldmakenodifferencehewillstillsaynotoyou.5Thedoctorexplainedthatonaveragepeoplewhodon’tsmokearehealthierthanthosewhodo.6.I’mfamiliarwiththeoperatingsysteminstallesonthecomputer,butwhenitcomestorepairingthemachineIdon’tknowathing.7Althoughpeasantsinsomeareasarebetteroffnow,thoseinmanyotherareasstillliveinpoverty.8Thenewstaffinsistesthatopportunitiesforpromotionshouldbebuiltintotheworkc