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导学案Unit1Science andScientists Period3Discovering usefulstructures习目标
1.To furthergrasp thestructural featuresof predicative clauses andtheir ideographicfunctions.
2.To strengthenthe abilityof usingpredicativeclausesin context
3.To promotethe abilityof textanalysis andlogical reasoningcompetence.学习过程-从课本P2・p3课文中找到所有含有表语从句的句子,并划出其中的表语从句keys:1One theory was thatbad aircaused thedisease.2Another theorywas thatcholera wascaused byan infectionfrom germsin foodor water.3The truthwas that the waterfrom theBroad Streethad been infected by waste.-表语从句知识竞赛填空在复合句中作的从句,叫作表语从句它位于主句的之后,对主语进行解释、说明,使主语的内容具体化表语;系动词;引导词用法例句My beliefis________________I willsucceedby workinghard.我的信念是通过努力我会成功that在从句中___________The mostpleasant thingof therainy seasonis从that、成分,that没有实际意义,_________________one canbe entirelyfree属whether不口」省略;whether意为连不能用if fromdust.雨季最令人愉快的事情是完全没词有灰尘不作;“是否”The problemis_______________we canfindthem there.问题是我们能否在那里找到他们that;that;whetherbecause说明主语所表示的事件He hasheart disease.That is发生的原因,意为___________he has been smokingtoo much.他___________“因为”有心脏病那是因为他抽烟太多because从句表示的情况发生的可It seemsas if he______________know the能性较小时常用answer.他好像不知道答案as if/thoughdidnt虚拟语气You canbe_______________you wantto be.whoever、你可以成为你想做的任何人在从句中作主语、宾语、连接whomever、whoses Tomis nolonger__________he usedto be.表语、定语等代词whatever、汤姆不冉是过去的那个他了whichever等whoever;whatThis is_____________I dontagree withyou.这就是我不同意你的地方The questionis____________we canget inwhen、where连接s在从句中作状语,表示时touch withhim.问题是我们怎样才能和他联系副词why、how等间、地点、原因、方式等上That is________________I gotwet through.所以我才被淋湿了注意事项lthat与what的区别that引导表语从句时,是连词,在从句中不作成分;what是连接________________,引导表语从句时,在从句中作O代词;主语、宾语、表语或定语My opinionis we should communicatewith parentsfrequently.我的意见是我们应该经常和父母沟通what;that2because与why的区别because引导表语从句时强调,why引导表语从句时强调原因;结果She often comes late.Thats shehas a baby to take care of.她经常迟到那是因为她有一个孩子要照顾She hasababytotakecareof.Thats sheoftencomeslate.她有一个孩子要照顾那就是她经常迟到的原因because;why[点睛]名词reason作主语时,后面的表语从句表示原因时要用that引导,而不用because3虚拟o语气用于表语从句
①在表示建议、劝告、命令等含义的名词后的表语从句中,谓语动词用,should可以省略u should+动词原形”My suggestionis thata discussionabout thismatter insteadof justlayingit aside.我的建议是我们应当讨论一下这件事,而不应该只是把它放在一边The doctorsadvice ismore exercise.医生的建议是我们应该多做运动weshouldhave;that weshould take
②as if/as though引导的表语从句如果是事实,就用语气;如果与事实不符,就用用一般过去时表示现在,过去进行时表示现在进行,过去完成时表示过去,could/would/might+动词原形表示将来陈述;虚拟语气Tom likesto talkbig as ifhean importantperson.汤姆喜欢说大话,好像他是一个重要人物似的Dark cloudsare gathering.It looksas if.乌云正在聚集看起来好像要下雨了与事实相符were;its goingto rain.三单句语法填空
1.The reasonfor yourmistake isthat youlack confidencein yourself.
2.The doubt is whohas gotaway withthe document.
3.She*sbeenleading throughthe race,but itnow looksas ifshes tiring.
4.The bestmoment for the footballstar was when hescored thewinning goal.
5.Tom leftimmediately.Thats becausehe onlyhad10minutes toget tohis nextjob!
6.What Toinsparents reallydoubtiswhether hewill recoverfrom theserious diseasesoon.
7.Every year,whoever makesthe mostbeautiful kitewill wina prizein theKite Festival.
8.What yourfather wantsto knowis howyou aregetting onwith yourstudies.
9.My parentsare verykind tome andalways letme dowhat Ithink Ishould do.
10.You aresaying thateveryone shouldbe equal,and thisis whereI disagree.四:使用文章中的信息和表语从句回答下列问题
1.What wasit thatJohn Snowshowed tothe worldWhatJohn Snowshowed tothe worldwas.
2.What wasSnows discovery in two particular streets in LondonSnowsdiscoveryintwoparticularstreetsinLondon was that
3.What wasSnow determinedto findout duringthe1854outbreak of cholera inLondonWhat Snowwas determinedto findout waswhy
4.What werethe exact places Snow marked on the mapTheexactplacesSnowmarkedonthemap werewhere
5.What wasthe findingthat SnowannouncedSnows findingwasthat____________________________keys:l.how choleracould beovercome.
2.the choleraoutbreak wasso severethat morethan500people diedin ten days
3.the outbreakofcholerahad causedover500deaths withintendays
4.all thosewho diedhad lived/all thedead peoplehad lived
5.the waterpump wasto blameforthespread ofcholera/the pumpwater carriedcholera germs/waterfrom theBroad Streetpump hadbeeninfectedbywaste五语境填空David istalking toMaria abouttheir scientificresearch project.First completeDavids linesA-E,using thewordsin thebox.Then putDavids linesin thecorrect orderand practicethe conversation.•A:Absolutely!You maynot believeit,but thatwas happenedattheinitialstage ofour groupsresearch ondeveloping avaccine formalaria.•B:Yes,it is.And itseemed allthe theories were useful,but thefact waswe couldntpersuade oneanotherthat onetheorywasbetter thananother.•C:Exactly Theproblem wasnot aboutall ourtheorieswereequally good,butin decidingtheory todepend upon.•D:We realizedthat whatwe caredabout wasnot aspectwe neededto developa theoryin,but ratherwecan reducethe costof avaccine withoutreducing itseffect!•E:Youre right.At last,we becamefocused onthe keyissue,which waswe hadtoCary outthe researchin thefirst place.keys:what;asif;that;whether;which/what/whose;which/what/;how;whyDavid istalking toMaria abouttheir scientificresearch project.First completeDavid*s linesA-E,using thewordsin thebox.Then putDavids linesin thecorrect orderand practicethe conversation.•Maria:This mixof theoryand datais oneof thekey characteristicsof whatwe callscience.•David:•Maria:With yourtheoretical framework•David:______________•Maria:Deciding ona theoryis definitelyof criticalimportance.•David:______________•Maria Thiswaswhenyou shouldhave calmeddown andgot downto doingsome soldwork.•David:______________•Maria:So whathappened inthe end•David:______________keys:ACBED。