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选修8Unit5Meetingyourancestors●重点单词1．alternativen.可能的选择adj.供选择的；其他的2．starvationn．挨饿；饿死→starvevi.挨饿；饿死3．accuracyn．精确；准确→accurateadj.准确的；精确的4．interruptvt.&vi.打断……讲话；打岔；暂时中断或中止5．assumevt.假定；设想→assumptionn.假定；设想6．sharpenvi.&vt.(使)锋利;尖锐;清晰→sharpenern.磨具；削具7．messyadj.凌乱的；脏的→messn．凌乱，脏8．botanyn．植物学→botanicaladj.植物学的9．analysisn．分析→analysespl.→analysevt.分析→analystn．分析者，化验员10．categoryn．种类；类别；范畴11．significancen．意义；意思；重要性，重要意义12．deletevt.删；删除13．somehowadv.以……方式；不知怎么地14．academyn．学院；学会；学术团体；院校15．applaudvi.&vt.鼓掌欢迎；赞赏→applausen．鼓掌16．acceleratevi.&vt.加速；促进17．arrestvt.逮捕；吸引n．逮捕；拘留18．dizzyadj.晕眩的；昏乱的；使人发晕或困惑的●重点短语1．regardlessof不管；不顾2．atmost至多；最多3．cutup切碎4．fedupwith受够了；饱受；厌烦5．lookahead向前看；为将来打算6．dateback追溯到……Ⅰ.词汇短语过关1．alternativeadj.选其一的；替代的n.(两者或两者以上)选择；二选其一；可供选择的东西；替代物havenoalternativebuttodosth.别无选择只好做……[即学即练]alternativeenergy_____________We_____________buttogoon.除了继续下去，我们别无选择。可替代能源havenoalternative2．interruptvi.打岔vt.暂时中断或中止interruptionn.中断，打断interruptsb.打断某人的讲话或正在做的事withoutinterruption不间断地[即学即练](1)Trafficwasinterruptedbyadensefog.(2)Itisnotpolitetointerruptwhenothersaretalking.中断打断Hisspeechwasconstantlyinterruptedbyapplause.3．assumev.假定；设想assumptionn.假定，假设(1)Thescientistsassumethattherearenoanimalsonthemoon.(2)_____________(that)itrains,whatshallwedo?假如下雨的话，我们怎么办？(3)Scientistsbelievethathumancloningisjustamatteroftime,buttheassumptionthathumancloneshavealreadybeenbornhasn’tbeenprovedyet.________Assuming假想，设想设想[即境活用]1)We_______________youunderstoodthesituation.我们认为你了解形势。2)Weallcangooutforapicnicthisafternoon－________thattheothersagree.A．toassumeB．assumedC．assumeD．assumingassumedthatD4messyadj.___________________n.杂乱，脏乱，脏东西；不整洁或乱七八糟的事常用结构：1.inamess__________2.messesof=lotsof__________凌乱的脏的杂乱，乱成一团许多，大量的8．cutup切碎；割碎;使伤心，使难过根据语境猜词义Alicecutupthemeatandbegantocookit.[拓展]根据句意填入cut相关的短语意思(1)Yourarticleistoolong—pleasecutitdownto1,000words._______________(2)IwishMariewouldstopcuttinginourconversationallthetime.(3)Ourwatersupplyhasbeencutoff._______________(4)Intheoperation,thedoctorcutoutapieceofmusclefrommyleg.____________切碎删节，消减插嘴切断，断绝切下，取下regardlessof不顾，不管根据语境感悟其用法,翻译下面句子。(1)Wewillpersevereregardless_ofpastfailures._______________(2)Theycontinuedtoworkregardlessofthefactthatitwasraininghard._______________[拓展]inspite[spaɪt]of/despite[dɪ'spaɪt]尽管…仍，虽然,后加名词或代词，不能直接跟从句though/although“虽然；尽管”，引导让步状语从句[翻译]他说干就干了，没有考虑后果。（regardlessof）______________________________________________________________________________尽管下雨，我还是出去了。(inspiteof)_______________________________________尽管以前失败过，我们仍要坚持下去。尽管下着大雨，他们仍继续工作。Hewentaheadanddidit,regardlessoftheconsequences.Iwentoutinspiteoftherain.7.befedupwith受够了，厌烦根据语境猜词义1).I’mfedupwithwaitingforhertotelephone._______________2).What’sthematter?Youlookprettyfedup.[翻译]我极其厌倦了你的愚蠢评价。受够了,厌烦厌烦Iamgettingfedupwithyourstupidcomments/remarks.8.datebackto追溯到[拓展]datebackto＝datefrom因追溯是从现在算起指向过去，所以这个短语常用一般现在时。常为主动语态。[即境活用]这座教堂的历史可追溯到13世纪。___________________________________________________________Everydayanumberoftouriststakepicturesinfrontofthetower，which________asearlyas800yearsago.A．datesbacktoB．isdatedbackC．datesbackfromD．wascallatThechurchdatesbacktothe13thcentury.A[当堂检查]Itisreportedthattheagentwas_______forcarryingafalsepassport.A．arrestedB．accusedC．chargedD．suspectedTranslation1市内交通被暴风雪所阻断。2假如明天下雨的话我们该怎么办(assuming)3我除了接受该项提议(proposal)之外，别无选择。（alternative）4他们决定采取措施加快经济增长的速度。（accelerate）ATrafficinthecitywasinterruptedbyasnowstorm.Assumingitrainstomorrow,whatshallwedo?Ihavenoalternativebuttotakethisproposal.Theydecidedtotakesomemeasurestoacceleratetherateofeconomicgrowth.