高中英语 Unit 4 Breaking boundaries教学 知识细解码教师用书 外研版选择性必修第二册-外研版高二选择性必修第二册英语教案VIP免费

Unit4Breakingboundaries1．assistv．帮助，协助→assistancen．帮助；协助→assistantn．助手；助理2．specialadj.特殊的；特别的→specialistn．专家3．infectv．感染→infectionn．感染，传染→infectiousadj.传染性的→disinfectvt.给……杀菌；为……消毒4．devotevt.献身于→devotionn．奉献→devotedadj.献身的；热爱的5．twinadj.双胞胎的→twinsn．双胞胎devotionn．挚爱；关爱；关照；奉献；忠诚；专心；热心①Hisdevotiontohiswifeandfamilyistouching.挚爱，关爱②Herdevotiontothejobleftherwithverylittlefreetime.忠诚；专心③Asasoldier，heshowedselflessdevotiontoduty.奉献WordsandPhrasesassistvt.&vi.帮助，协助(教材P38)Itassistspeoplebasedonneed,regardlessofwhichcountrytheyarefrom.它根据需要帮助人们，不管他们来自哪个国家。[例1]We'lldoallwecantoassistyou.我们要尽量帮助你。[例2]Anyonewillingtoassistcancontactthisnumber.凡愿协助者可拨此号码联系。[造句]我们正寻找愿意协助该团体工作的人。Wearelookingforpeoplewhowouldbewillingtoassistinthegroup'swork.[知识拓展](1)assist(sb.)in(doing)sth.帮助(某人)(做)某事assistsb.withsth.帮助某人做某事assistsb.todosth.帮助某人做某事(2)assistantadj.副的；助理的n.助手；店员assistancen.帮助，援助[即学即练]单句语法填空①Twomenareassistingthepolicein/withtheirenquiries.②Wewillassistyouinfinding(find)somewheretolive.③BillassistedhisfriendMiketoestablish(establish)anewcompany.④Chinawillcontinuetoincreaseitsassistance(assist)toAfricainbothquantityandquality.[小片段填空]Theshopassistantrushedoutoftheshoptoassisttheoldladywithherluggage.Withhisassistance,theoldladycrossedtheroad.(assist)vitaladj.极其重要的，必不可少的(教材P38)Butitisvitalnottotakeanychances.但重要的是不要冒险。[例1]Goodfinancialaccountsarevitaltothesuccessofanyenterprise.妥善的财务账目对任何公司的成功都是极其重要的。[例2]Thepoliceplayavitalroleinoursociety.警察在我们的社会中起着极其重要的作用。[造句]现在，我们接着往下讨论今天的重要事宜。Nowwemoveonanddiscussthevitalbusinessoftheday.[知识拓展]bevitalto/for对……极其重要；必不可少Itisvitalthat...……极其重要(that从句中谓语用shoulddo形式)ofvitalimportance至关重要[即学即练]单句语法填空①Thequickrecognitionofdiseaseisvitalforeffectivetreatment.②Itisvitalthatweshouldbekept(keep)informedofalldevelopments.③Itiswithoutdoubtthatthedevelopmentofscienceandtechnologyisofvitalimportance(important)tohumanadvancement.atrisk处在危险中(教材P38)IknewIwasputtingmylifeatrisk...我知道我在冒生命危险……[例1]Thecrisiscouldwellplacetherelationshipatrisk.这场危机可能会使这一关系有破裂的危险。[例2]Iftheyhavethevirustheyareputtingpatientsatrisk.如果他们有这种病毒，就会将病人置于危险境地。[造句]当一种新型流感感染了一个人，那么所有人都有危险。Whenanewfluinfectsonehumanbeing,allareatrisk.[知识拓展](1)riskdoing...冒险做……riskone'shealth/life以健康做赌注/冒着生命危险(2)attheriskof(doing)...可能导致(不快等)，冒(做)……的危险atallrisks无论如何run/takearisk/risks冒险run/taketheriskof(doing)...冒(做)……的危险[即学即练]单句语法填空①Whichteamismorewillingtotakerisks(risk)?②Hegotwellpreparedforthejobinterview,forhecouldn'trisklosing(lose)suchagoodchance.③Hewasdeterminedtodoitevenattheriskofbeinglaughed(laugh)at.(教材P38)MymissionwastorelieveEmma,aCanadianspecialistininfectiousdiseasesattheendofherposting.我的任务是在加拿大传染病专家艾玛任职结束后接替她。(1)specialistn．专家，专业工作者[例1]Peckham,himselfacancerspecialist,iswellawareofthewidevariationsinmedicalpractice.佩卡姆本人就是个癌症专家...