Unit9Lesson1ToCloneorNottoClone课件-高中英语北师大版选择性

LESSON1TOCLONEORNOTTOCLONEUNIT9HUMANBIOLOGYLEARNINGOBJECTIVESToreadandtalkaboutcloning;Tonoticeanddiscusshowawriterorganiseswriting;Toanalyseawriter'sintentionsandopinions;Tocomparepersonalopinionswiththeideasofothers;Toreadforspecificinformationtounderstandwordsincontext;Torecallandsummariseinformation;Tolearnandpractiseusingverbsintheperfecttense.KEYPOINTSANDDIFFICULTPOINTSToanswerthecomprehensionquestions;Tounderstandanddiscusscloning;Toanalyseawriter'sintentionsandopinions;Tolearnwordsandexpressionsincontext;Tostrugglewithcomplicatedsentencestructures;Tothinkcriticallyandexpressopinionsfreely.LEADINGINWhatdoyouknowabouttheperfectHehadbeenmentioningyournametome.Assoonaswegottothestation,thetrainhadleft.Theexperimenthasbeendonesuccessfully.Wehavebeenseeingquitealotofeachotherrecently.Bytheendoflastmonth,wehadreviewedfourbooks.Hehasbeensayingthatforyears.Georgehasmetthatgentlemanonseveraloccasions.IhadbeenlookingforitfordaysbeforeIfoundit.FOCUSONLANGUAGE:THEPERFECTIdentifythetenseofthesentencesandwritethenumberinthecorrectcolumns.1.Naturalcloninghasbeengoingonforgenerations.2.Gardenershavebeenusingaformofcloningwhentheytakeacuttingfromaplant...3.Foryears,therehadbeenattemptstocloneanimals.4.Cloningprimateshasprovedtobe"muchharder"thancloningotherspecies.5.Dr.SunQiangsaidtheyhadbeenwhollydevotedtotheresearch...6.Dr.SunQiangsaidtheyhadbeentakingcareofmorethan1,000monkeys24hoursaday,7daysaweek...FOCUSONLANGUAGE:THEPERFECTIdentifythetenseofthesentencesandwritethenumberinthecorrectcolumns.PresentperfectPresentperfectcontinuousPastperfectPastperfectcontinuous41,23,56have/hasdonehave/hasbeendoinghaddonehadbeendoingFOCUSONLANGUAGE:THEPERFECTCompletethepassagewiththeproperformofthewordsinbrackets.OnThursday,theInstituteofNeuroscienceannouncedit1._____________(clone)twomonkeysusingnon-reproductivecells.Itisreportedthatresearchersallaroundtheworld2.__________________________(conduct)testsonanimals,suchasmiceanddogs,formanyyearsbutcouldn’tfindawaytoclonemonkeys.Thenewsofthesuccessfulcloning3.hadclonedhavebeenconductingFOCUSONLANGUAGE:THEPERFECTCompletethepassagewiththeproperformofthewordsinbrackets._________________(attract)attentionfromaroundtheworld.However,cloningprimates4._____________________(alsoraise)ethicalconcerns.Forexample,somepeople5.___________________________(discuss)issuesconcerninghowcloneswillbetreatedinsociety.hasattractedhavealsoraisedhavebeendiscussingGRAMMAR完成时一、现在完成时1.构成：have/has+过去分词2.用法：（1）过去的动作或状态持续到现在已经完成，对现在造成的影响。常用的时间状语有：lately；recently；sofar；bynow；upto/tillnow；inthelast/pastfewdays/years等GRAMMAR完成时一、现在完成时Progresshasbeensofarverygoodandwearesurethattheworkwillbefinishedontime.到目前为止，工作进展得很顺利，我们确信工作一定会按时完成。Thejournalisthaswritten50reportsinthepasttwoyears.这位记者在过去两年里写了50篇报道。GRAMMAR完成时一、现在完成时（2）从过去开始一直持续到现在的动作或状态，可能还会继续进行下去。常用的时间状语有：since+时间点；for+时间段。Hisfirstnovelhasreceivedgoodreviewssinceitcameoutlastmonth.他的第一部小说自上个月出版以来获得了好评。Thelibrarianhasworkedinthislibraryfornearlytwentyyears.这位图书管理员在这个图书馆工作了将近二十年。GRAMMAR完成时一、现在完成时（3）瞬间动词可以用于现在完成时，但在肯定句中不能与表示一段时间的状语连用。在否定句中，瞬间动词可以与表示一段时间的状语连用。常用的瞬间动词有：go，come，arrive，leave，begin，borrow，buy，die，fall，stop，start，kill，close，graduate，join，finish，lose等。GRAMMAR完成时一、现在完成时（3）若瞬间动词要接表示一段时间的状语，需要做一些相应的变换，如：buy→have买；borrow→keep借；finish→beover结束；leave→beaway离开；close→beclosed关闭；open→beopen打开；come/go/become→be来/去/变得；成为

fallasleep→beasleep睡觉；fallill→beill生病puton→have/wear穿；marry→bemarried结婚jointhearmy→beasoldier/beinthearmy参军GRAMMAR完成时一、现在完成时（3）若瞬间动词要接表示一段时间的状语，需要做一些相应的变换。“他已经参军三年了”可以用以下方式表达：Hejoinedthearmythreeyearsago.Itis/hasbeenthreeyearssincehejoinedthearmy.Hehasbeenasoldierforthreeyears.Hehasbeeninthearmyforthreeyears.GRAMMAR完成时二、过去完成时1.构成：had+过去分词2.用法：（1）在过去某一时间或过去某一事件之前已经发生并完成的

动作，即“过去的过去”。WhenIhurriedtothestationtoseethespecialistoff,thetrainhadalreadyleft.当我匆忙赶到车站为专家送行时，火车已经开走了。GRAMMAR完成时二、过去完成时（2）表示一个动作或状态从过去某一时间之前已经开始，一直持续到过去这一时刻，并也可能继续下去。常用的时间状语有：bythen；bythetime；bythattime；before；bytheendof；untilthen；bythetime+一般过去时的从句等。GRAMMAR完成时二、过去完成时Theworkerhadworkedintheworkshopforthreehoursbeforehismachinebrokedown.机器损坏之前这个工人已经在车间里工作了三个小时。BythetimeJackreturnedhomefromEngland,hissonhadgraduatedfromcollege.杰克从英国回到家时，他的儿子已大学毕业。GRAMMAR完成时二、过去完成时（3）intend，mean，hope，want，plan，suppose，expect，think等动词的过去完成时，可表示过去未曾实现的愿望或想法等。Ihadintendedtovisityouyesterday,butIhadanunexpectedvisitor.我本来打算昨天去看你的，但来了一个不速之客。（实际上没去）

GRAMMAR完成时三、现在完成进行时1.构成：have/hasbeen+现在分词2.用法：（1）现在完成进行时有时所表示的动作并不是一直在不停地进行，而是在断断续续地重复。Ihavebeenringingyouseveraltimesintwodays.这两天内我给你打过几次。GRAMMAR完成时三、现在完成进行时（2）表示从过去某一时刻开始，一直持续到现在的动作。这一动作可能刚完成，也可能仍在进行。常用的时间状语有：allthismorning；thismonth；recently；thesefewdays；allnight；since等。Thelibrarianhasbeenworkinginthelibraryeverynightoverthelastthreemonths.在过去的三个月里，那位图书管理员每天晚上都在图书馆工作。GRAMMAR完成时四、过去完成进行时1.构成：hadbeen+现在分词2.用法：（1）表示过去的过去反复进行的动作。Hehadbeenmentioningyournametome.他过去多次向我提到你的名字。GRAMMAR完成时四、过去完成进行时（2）动作从过去的过去开始一直延续到过去某个时间点。在过去某个时间点时，这个动作可能刚刚停止，也可能仍然在进行。Theyhadonlybeenwaitingforthebusafewminuteswhenitcame.他们只等了几分钟公共汽车就来了。LANGUAGEPOINTS1.Anotherexampleofnaturalcloningisidenticaltwins...identicaladj.完全相同的，非常相似的搭配:beidenticalto/with与……完全相同 beidenticalin在……方面极其相似arowofidenticalhouses完全一样的一排房子

Herdressisalmostidenticaltomine.她的连衣裙和我的几乎一模一样。

Thesisterswereidenticalinappearanceandcharacter.这对姐妹在相貌和性格上极其相似。LANGUAGEPOINTS2.Thiscouldhelpsaveresearchtime,reducethenumberofanimalsrequiredfortesting,producemoreaccurateresults,andleadtomoreeectivetreatments.accurateadj.准确的，精确的搭配: beaccuratein在……方面准确 tobeaccurate精确地说Broadcastnewswasaccurateandreliablebutdeadlydull.新闻广播准确、可靠，但极其枯燥。Journalistsarenotalwaysaccurateinwhattheywrite.新闻工作者的报道并非总是准确的。LANGUAGEPOINTS3.Whilesomepeoplebelieveitiscrucialforscienticadvancement...crucialadj.至关重要的，关键性的搭配: becrucialto/for...对……至关重要 becrucialthat...……是至关重要的Talent,diligenceandwholedevotionareallcrucialtocareersuccess.才能、勤奋和全身心投入对于事业的成功都是至关重要的。Youngpeopleplayacrucialroleinworkingforpeace.年轻人在争取和平的事业中发挥着至关重要的作用。LANGUAGEPOINTS4.Theybelieveitisboundtoleadtocloningofotherspecies...boundadj.很有可能，肯定会搭配: beboundtodo一定会，必定会；有义务做，有责任做 beboundfor前往……的Ifyoukeeponworkinghardlikethis,chancesareboundtofavouryou.如果你继续这么努力工作的话，机会一定会垂青你的。Iamboundtosayyourabsencefromthemeetingisunwise.我必须告诉你，你缺席会议是不明智的。LANGUAGEPOINTS5.Howitisused,whetheritisablessingoracursetomankind,dependsonmankindandnotontheinstrument.whether...or...不管……还是……引导让步状语从句，强调任意选择，此时不能把whether替换为if。Whetheryouareafarmeroraspecialist,youbothshouldobeytherules.无论你是农民还是专家，你都应该遵守规则。Whetherthey’llhaveapicnicornotdependsontheweather.他们是否去野餐要看天气。LANGUAGEPOINTS6.Theywerethefirst-everprimates...tohavebeencloned!动词不定式作定语

当被修饰词前有序数词（first，second等）、最高级或thenext，theonly，thevery等修饰时，常用不定式作定语。Thejournalistwasthefirstpersontogettothescenewheretheaccidenthappened.那位记者是第一个到达事故现场的人。Heistheonlyonetogetabachelor’sdegreeinhisfamily.他是家中唯一取得学士学位的人。

Shewasthefirstwomantobeappointedtotheboard.她是第一位被任命进入董事会的女性。LANGUAGEPOINTS7.Researchersinsistthatthescienceofcloningshouldbefurtherexploredandadvanced.insist后接that从句，表示“坚持，坚决要求”时，从句用虚拟语

气，即从句谓语用“should+动词原形”，should可以省略。OurEnglishteacherinsiststhatwe(should)speakEnglishinandoutofclass.英语老师坚持要我们在课堂内外都讲英语。Heinsiststhatstudents(should)dosomeexerciseforatleasthalfanhoureveryday.他要求学生们每天至少锻炼半小时。PRACTICE1.Tomygreatjoy,IgotachancetotakeaphotowithAndyaftertheconcert,whichI________________________________(lookforwardto)foryears.2.China____________(see)asharpincreaseinthenumberofagedpeopleoverthepastdecade.3.Housingprices________________________(increase)sinceafewyearsago.Therefore,it’stimethatthecentralgovernmenttooksomemeasurestobringthemundercontrol.hadbeenlookingforwardtohasseenhavebeenincreasingPRACTICE4.Whenmyparentsfirstcametothecity,theyoftenwenttoneighborsforatalk,justasthey_____________(do)inthecountryside.5.GoodHeavens!Youarehere,Mary!Yourparentstoldmethismorningthattheywereworriedaboutyouandthey______________________