英语选修8unit5重点单词

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1、Unit51.identifyvt.〜sb./sth.assb./sth.确认，证明某人/某物系某人/某物她认出那个男子就是袭击她的人。Thepolicearetryingtoidentifythedeadbody.Scientistshaveidentifiedthegenethatcausesabnormalgrowth,identificationn.鉴别；身份证明identificationcard身份证identityn.身份；特征identicaladj.完全相同的，一样的2.alternativeadj.（作定语）供选择的，可代替的Werecommendusingalterna

2、tivesourcesoffuelsuchascharcoal（木炭）.Asthereislessandlesscoalandoil,scientistsareexploringnewwaysofmakinguseofalternativeenergy,suchassunlight,windandwaterforpowerandfuel.n.可能的选择；替代物Minibuseswithseatsfor12passengersofferanalternativetoexpensivetaxisandcrowdedpublictransport.I'msorry,there'snoalterna

3、tivebuttosellthecar.别无选择只好做havenoalternativebuttodo=havenochoicebuttodo=havenothingtodobutdo除了放弃那个计划，我别无选择Ihavenoalternativebuttogiveuptheplan.=Ihavenochoicebuttogiveuptheplan.=Ihavenothingtodobutgiveuptheplan.3.Reviewthewords：starve；accurate1)Theygotlostinthedesertand(starve)todeath.2)Sheisstarvin

4、gtryingtoloseweight.3)Bytheyear2025,noonewilldieof(starve)becausetherewillbefoodforeveryone.4)Heisgettingbackthisafternoon,tobe(accurate),atfouro'clock.5)It'simpossibletopredicttheweather(accurate).6)(accurate)ismostimportantintranslation.1.Interrupt®vt.vi.打断(讲话或讲话人)，打扰Iwishyouwouldn'tinterruptmeal

5、lthetime.Sorrytointerruptyou,butIhavesomethingurgenttotellyou.②vt.使…暂时停止；中断Thewarinterruptedthetradebetweenthetwocountries.MystudieswereinterruptedbytheCulturalRevolution.Willyoustop(interrupt)mewhenI'mtalking?Heburstintotheroom,myteaching.2.acuteadj.①敏锐的;聪明的，机敏的Dogshaveanacutesenseofsmell.Hisheari

6、ngissothathecanevenhearapindrop.②剧烈的；强烈的acutepainacuteembarrassmentThereisanacuteshortageofwaterandfood.③急，性白勺SARSstandsforsevereacuterespiratorysyndrome.acutepneumonia急性肺炎1.assumevt.假定；（想当然地）认为Ididn5tseeyourcar,soIassumedyou'dgoneout.IassumedshewasAmericanbutshewasactuallyCanadian.Let'sjustassumet

7、hestatementtobetrue.It'sgenerallyassumedthatstressiscausedbytoomuchwork.assuming分词可以充当连词使用二supposing或suppose意为“假如；假设”Assumingit「ainstomorrow,whatshallwedo?Assumingwehavewonalottery,howshallweusethemoney?Wer