高中英语 Unit21《Human Biology》精美课件 北师大版选修7

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Unit21HumanBiology1.circulatevi.循环→circulationn.循环;传播,发行量2.digestvt.消化→digestionn.消化3.toleratevt.容忍→tolerancen.忍受,忍耐力;宽容→tolerantadj.宽容的;容忍的4.fundamentaladj.根本的,基本的→fundamentallyadv.根本上;基本上5.compulsoryadj.强制性的,义务的→(反义词)voluntaryadj.自愿的;志愿的6.opposevt.反对→oppositeadj.相反的,反对的→oppositionn.反方,对立面7.contradictvt.与(其他事物)相矛盾→contradictionn.矛盾的说法;反驳→contradictoryadj.矛盾的;抵触的8.violatevt.违反,违背→violationn.违反;侵害9.treatvt.款待→treatmentn.治疗10.storagen.储存→storevi.储存,存放11.prohibitvt.禁止→prohibitionn.禁止;禁令12.thoroughadj.彻底的;细致的→(形近词)throughprep.穿过,通过13.systematicadj.系统化的→systemn.系统14.fortunen.大笔钱财;巨款→fortunateadj.幸运的→(反义词)unfortunateadj.不幸的15.concernn.担心,担忧→concernv.关心,涉及,有关→concernedadj.担心的,关心的,相关的→concerningprep.关于,有关●重点短语1.sincethen从那时起2.slowdown减慢3.comeacross遇到4.beknownas以……闻名5.beyondone‘slimits超出……的极限,打破极限6.invain徒然,白费力气7.atrandom随便地,随意地8.ratherthan而不是9.atallcosts不管多大代价,无论如何10.treatas看作,认为11.sweepthrough席卷12.straightaway立刻,马上13.wipeout彻底毁灭14.upto达到15.stopsth.initstracks终止,消灭16.robsb.ofsth.抢劫某人某物17.atanyrate无论如何;至少18.caterfor为……提供服务,满足……要求●重点句型1....theSpanishFluisbelievedtohavebeenthemostacuteepidemicinhistory.……西班牙流感被认为是历史上最严重的流行性传染病。2....WehavetohavefaiththattherewillbesolutionsintimetostopaBirdFluepidemicinitstracks.……我们必须坚信迟早有消灭禽流感的方法。3.Whenhewenttothedoctorthatday,hecouldnothaveknownwhatwasabouttohappentohim.当那天他去看病时,他一定不知道什么事将会发生在他身上。4.ItseemsarealpitythatthousandsofpeoplewhocouldhavebenefitedfromTraditionalChineseMedicinemissedoutbecauseofignorance.很遗憾,由于无知,成千上万的人们错过了用传统中医治疗的机会。●高考范文(2008·上海)你班将组队参加学校组织的集体舞比赛(groupdancingcompetition),班长希望大家积极参加。对此谈谈你的想法。你的文章必须包括以下内容:·你是否会参加比赛·你作出该决定的具体理由__________________________________________________________________________________________[范文]Asisknowntousall,therewillbeagroupdancingcompetitioninourschoolnextmonth.Ofcourse,ourclasswillnotmissit.Ourmonitorcalledonallofustotakeanactivepartinit.Personallythinking,agroupdanceisquiteagoodformofentertainmentaswellasexercise,whichbringsusnotonlymentalbenefitsbutphysicalones.Besides,dancingagroupdancecallsforteamwork,oneofthequalitieswewillneedforourfuturecareers.Thirdly,bypractisingit,ourclassmatescandevelopabetterrelationshipbetweeneachother,helpingeachotherandencouragingeachother.Lastbutnottheleast,thisisagoodchanceforustowinhonorforourclass.Forallthereasonsabove,Ihavedecidedtojoininit.Iwanttoprovetobeanhonortotheclass.考点探究Ⅰ.重点词汇过关1.abusevt.&n.滥用;虐待;辱骂abuseone'sauthority/position/power滥用职权/权力abuseachild虐待小孩anabuseofposition职权的滥用anabuseofdrugs药物的滥用atermofabuse骂人的话①Don‘tabuseyourprivilege.不要滥用你的特权。②Thefarmeroftenabusedhiswife.这位农夫经常虐待他的妻子。③Youshouldn’tabuseyoureyes.你不应该过度使用你的眼睛。④Idon‘tunderstandwhyIshouldputupwiththiskindofabusefromher.我不明白我为什么要忍受她这样辱骂我。即学即练Somegovernmentleaders______theirauthorityandpositiontogetillegalprofitsforthemselves.A.employB.takeC.abuseD.overlook解析:句意为“一些政府领导滥用职权,非法牟利”。abuse在句中意为“滥用”;employ雇用;take拿;overlook忽略。答案:C2.seek(sought,sought)vt.&vi.寻找;探索;追求seek(after/for)sth.寻找某物seektodosth.(=try/attempttodosth.)试图/企图做某事①Heisseeking_(=asking_for)ajob.他正在找工作。②Theboysought_advice_fromhisteacher.这个男孩向他的老师请教。③Heisthemanwhoisalwaysseeking_after_truth.他是个始终追求真理的人。④Theyare_seeking_tomisleadus.他们试图误导我们。即学即练Intheearly1920s,thousandsofpeoplewenttoAustraliato______theirfortune.A.seekB.takeC.developD.undertake解析:seekone'sfortune固定搭配,意为“发财,碰运气”。答案:A3.opposevt.反对opposedadj.相反的,对立的opposeAagainst/toB把A与B相对照或相比opposeoneselfto反对Sb.beopposedtosth./doingsth.某人反对某事asopposedto与……相对;与……成对比①Mostcitizensopposedthebill.许多市民反对这项议案。②Yourevidenceopposesthefact.你的证据与事实相背。③I‘m_strongly_opposed_toyoursuggestion.我坚决反对你的建议。即学即练完成句子Iwilloppose________________(改变这个法规)。changingthelaw4.privilegedadj.荣幸的privilegen.特权;特别待遇;vt.给予……特权enjoyprivileges享受特权grantsb.theprivilegeofdoingsth.给予某人做某事的特权privilegesb.fromatax免某人的税①Heenjoysdiplomaticprivileges.他享有外交特权。②Ifeel_privileged_toserveonthecommittee.我很荣幸成为委员会的一员。③Itisa_great_privilegetoknowyou.认识你真是莫大的荣幸。④Insomecountries,thepresidentcanprivilegesomebodyfromcapitalpunishment.在有些国家里,总统可以特赦一些人免于死刑。即学即练Ladiesandgentlemen,Ihavethegreatprivilege______introducingourspeakerfortonight.A.inB.ofC.aboutD.on解析:havetheprivilegeofdoing很荣幸地做某事。句意为:女士们、先生们,我很荣幸向大家介绍今晚的发言人。答案:B5.postponevt.推迟;延期postponesth.(tosth.)推迟某事物;使某事物推迟bepostponedforanhour推迟1个小时postponedoingsth.推迟做某事postponesth.until/to/for...推迟;耽搁;使延期①Themeetingis_postponed_untilnextweek.会议延迟到下星期举行。②Theydecidedtopostponethetrip,owingtothechangeoftheweather.由于天气变化,他们决定延期起程。辨析:postpone/delay/putoff三个词或词组后都不可以跟不定式。(1)postpone是正式用语,语义较强,指有意识地延至将来某一特定时间,在多数情况下,后面说明何时进行。ThemeetinghasbeenpostponedtoFriday.会议推迟到星期五举行。(2)delay指暂时阻挠或阻挡,稍后可再继续进行,后跟耽搁的原因。Thesteamerwasdelayedbybadweather.汽轮因天气不佳而延期。(3)putoff与postpone大致同义,但较口语化。Let‘sputthisofftillsomeothertime.我们还是把这搁一搁,以后再说吧。即学即练完成句子Let'spostpone_________________(做出决定)untilwehavemoreinformation.makingadecision6.prohibitvt.禁止;阻止prohibitionn.禁止;阻止prohibit...fromdoingsth.禁止……做某事prohibitsmoking禁止吸烟①Smokinginthisrailwaycarriageis_strictly_prohibited.本列车车厢严格禁止吸烟。②Weare_prohibited_fromdrinkingalcoholduringworkinghours.工作时间内我们不得喝酒。③Thepriceprohibite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