人教版高中英语必修二unit4单词讲解.ppt

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1、wordsandexpressionsinUnit41.dieout1)家族种族灭绝；eg:Thisspecieshasnearlydiedoutbecauseitshabitatisbeingdestroyed.2)习俗观念消失eg:Theoldcustomdiedoutmanyyearsago.拓展：dieaway声音风光等渐渐消失diedown情绪逐渐平息dieoff相继死亡草木先后枯死egThewinddiedawayatdusk.Thenoisehasdieddown.Manytreesaredyingoffforlackofwater.2lossn.损失遗失丧失losev

2、.sufferaagreatloss遭受重大损失ataloss不知所措eg:Thecompanysufferagreatlossasaresultofthatmistake.3huntvt/vi打猎猎取/搜寻huntforsth=searchforsth寻找某物gohunting去打猎eg:Weatherpermitting,we'llgohuntingthisSundaymorning.Sheisstillhuntforanewjob.4respondvi回答回应对...做出反应回信respondtoeg:Sherespondedbrieflytothequestions.n.re

3、sponseinresponseto对......回应makeaquickreaponseto对......作出快速反应eg:I'mwritinginresponsetoyourletter.5.reliefn(痛苦、忧虑）的减轻、消除v,relieve减轻缓解inrelief如释重负松了口气eg:Seeingthelostchildren,themotherwasinrelief.toone'srelief令某人感到欣慰的是eg:Toherrelief,hersonwasoutofdangerThosewhosufferfromheadachewillfindtheyget____

4、_fromthismedicine.A.reliefB.safetyC.defenseD.shelter【点拨】选A。题意：那些头痛的人会发现这种药物能减轻疼痛。relief符合题意。safety安全；defense防御，防护；shelter遮蔽，庇护。relieffromsth.减轻……e.g.Thedruggivessomerelieffrompain.这种药可以减轻一些痛苦。6.mercyn仁慈宽恕怜悯ask/begformercy请求宽恕showmercytosb=havemercyonsb同情，怜悯某人withoutmercy毫不留情地，残忍地atthemercyofsb任

5、由某人控制或摆布PeriodOnetoatonwithout7.certainadj1）某个，某些（仅做定语）Thelibraryisonlyopenatcertaintimesofday.2)确定的，一定=sureforcertain=forsure无疑地确定地becertaintodosth一定会做某事becertainof/aboutsth对某事有把握becertainthat确信……Itiscertainthat对....有把握certainlyadv.eg:Heiscertaintocome.=Itiscertainthathewillcome.I'mcertainofyo

6、urseccess.=I'mcertainthatyouwillsucceed.8.containvt.1)包含，容纳，装有egHowmuchwillthisbottlecontain?Fruitscontainmanyvitamins.2)抑制，控制，克制（强烈的情感）containoneself克制自己egTrytocontainyouranger.辨析：contain&include.contain指某物装在比其更大的物体内。include指某物为整体的一部分或一个要素。eg:Thejarcontainsolives.Themealincludessteak.注意，includ

7、ing为介词，included为形容词比较：Everyonelaughed,includingme(meincluded).8affectv侵袭感染1)影响=influnenceAsamatteroffact,youropinionwillnotaffectmydecision.2)感动=moveMostpeoplepresentatthemeetingweredeeplyaffectedbyhisspeech.effectnhaveaneffecton=