安徽广播电视大学理工英语2Unit7 形考成绩-单元自测7（预备知识：Unit 7；1分）答案

试卷总分:100得分:100一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。—Mary,ourteamwillplayagainsttheRocketnextweekend.I’msurewewillwin.—________________________Cheers！?Goodluck！?Congratulations！答案:B2.—Jack?andIwillcelebrateour?20th?weddinganniversarynextmonth.—Oh,________________________?cheerup!welldone!congratulations！答案:C3.—Congratulation！Youwontheprizeforbestphotography.—________________________Yes,it’strue.Thankyou.No,I?didn’tdoitverywell.答案:B4.Ourfactorywill?______twentymoreworkersnextmonth.takeoff?takeouttakeon答案:C5.—?IdrovetoShenzhen?fortheairshowlastweek.—?Isthat_____youhadafewdaysoff?whichthatwhy答案:C6.二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确为“T”，错误为“F”。NewMaterialCanCoolBuildingsResearchersatStanford?Universityhavedevelopedanewmaterialthatcanmoveheatoutofbuildingsandintospace.Thematerialcancoolbuildingsevenonhotdays.Thecoolingmaterialisaverythinsheetwithmanylayersthatcouldbeplacedonarooflikesolarpanels.However,?insteadofturningsunlightintoenergyassolarpanelsdo,thematerialturnsheatintoinfraredradiation.ShanhuiFanisanelectricalengineeringprofessoratStanford?University.Hesaysthatthepanelshavealayerofmaterialthatislikesand.Thepanelsalso?actlikeamirror.Theytakeheatoutofbuildingsandreflectthelightfromthesun.Boththeheatandsunlightaresent100kilometersintoouterspace.Thepanelsarecooltothetouch,eveninthesun.Researcherssaytheycanreducetheindoortemperaturetonearly5degreesCelsiusbelowthetemperatureoutside.Mr.Fansaysitislikehavingawindowintospace.Hesaystheheatissentdirectlyintospacewithoutwarmingtheair.?Buildingsindevelopingcountriesthatdonothaveelectricityorairconditioningcouldusethepanels.Inareaswhereoneisoff-grid,thereisasignificantpotentialbenefitforstoringmedicineorevenfood.?Inmanyofthesesituations,beingabletoreducethetemperatureisimportant.Andthiswouldprovideawaytodoit.TheStanfordresearchersdescribedtheirtechnologyinthesciencepublicationNature.Theysaythemainproblemiscreatingactualcoolingsystemsusingthehigh-techpanels.Itmaybepossibletodevelopacoolingspraytechnologyinthenextthreetofiveyearsthatcouldbeusedonexisting?solidstructures.?Thematerialcancoolbuildingsonly?oncold?days.Thematerialturnsheatintoinfraredradiation?becauseitisaverythicksheetwithmanylayersthatcouldbeplacedonarooflikesolarpanels.Theheatofthebuildings?andsunlightaresent100kilometersintoouterspace?bythepanels.Theoff-gridareasmayusethepanelstoreducethetemperatureofbuildingstostoremedicineorevenfood.A?coolingspra