地球上有生命吗

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1、Unit1IsThereLifeOntheEarth?地球上有生命吗？I.WordStudyandWordBuilding1.humorousa.humorn.humoristn.good-humoreda.asenseofhumorinagoodhumor:情绪好outofhumor:情绪不好2.satelliten.卫星，人造卫星aman-madesatelliteanartificialsatelliteacommunicationsatellite3.signal:(n.)信号；暗号e.g.Thecommandermadeasignalwi

2、thhishandforhissoldierstomoveon.Allvehiclesmuststopwhenthetrafficsignalturnsred.(v.)sendasignalorsignalsto向…发出信号e.g.SailorssignalSOSbyflags.Thechairmansignaledsilencetosomeoftheaudiencewhowerebusytalking.4.feasibility(n.)可行性e.g.Afeasibilitystudyisrequiredbeforethebankagreestof

3、inanceaproject.Althoughmanypeopledoubtedthefeasibilityoftheexperiment,hewasdeterminedtogoon.5.conference(n.)meeting(formalusage)会议e.g.Ms.Hardinleftofficeearlytodaybecauseshehadtoattendaparent-teacherconferenceatherson’sschool.Note:beinconference:haveaconferencewith:与…协商(谈判)6.a

4、tmosphere(n.)(1)大气；空气e.g.Astronautsmustcarryanoxygentankbecausethereislittleornoatmosphereinouterspace.Somephysicistsareinterestedinthestudyofchangesintheatmosphere.atmospherica.大气的(2)气氛；氛围;环境e.g.Withthemusicplaying,ourapartmenttakesonapeacefulatmosphere.WealllikeMarybecauses

5、hecanalwayscreatealivelyatmospherewherevershestays.7.originally(ad.)formerly起初，原来e.g.ThehousewasoriginallyoccupiedbyaSpanishcouple.Theseplaneswereoriginallydesignedforfiveyears’service.originn.起源，源头originala.最初的，原先的，原始的；独创的，新颖的；原作品的，原创作者的考题：Thisisthe____pianoonwhichthecomposer

6、createdsomeofhisgreatestworks.a.trueb.originalc.reald.genuine8.hazard(n.)danger危害；公害e.g.Smokingisahazardtohealth.IwillclimbMt.Blancatallhazards.9.pollute(v.)污染pollutionn.pollutantn.污染物e.g.Farmerscannolongerwashclothesinvillagepondsbecausetheyareallpolluted.Plasticlunchboxessho

7、uldbebannedbecausetheypollutetheenvironment.10.type(n.)类型，种类e.g.Doyouknowyourbloodtype?ThistypeofanimalonlyexistsinAustralia.(v.)useatypewriter打字typewritern.typistn.e.g.Couldyoutypethisletterforme,Ms.Nevertire?11.fund(1)资金；基金e.g.Heronlyjobnowistorunthecharityfundherfamilyhasse

8、tup.TheprimarytaskofauniversitypresidentintheUSAistoraisefund