Unit1ScienceandScientistsDiscoverUsefulStructures表語從句同位語從句課件高中英語人教版選擇性

ThePredicativeClauses選擇性必修二Unit1DiscoverusefulstructuresTeachingobjectives:1.Enablethestudentstomastertheusageofpredicativeinthisunit.2.Enablethestudentstousethepredicativepatternsflexibly.3.Trainthestudentstoapplysomeskillsbydoingtherelevantexercises.目錄CONTENTS1表語從句定義2表語從句引導詞3表語從句易錯點4鞏固練習表語從句定義11.Onetheorywasthatbadaircausedthedisease.2.Anothertheorywasthatcholerawascausedbyaninfectionfromgermsinfoodorwater.3.ThetruthwasthatthewaterfromtheBroadStreethadbeeninfectedbywaste.畫出下列句子中的表語從句總結(jié)：在復合句中作____________的從句，叫作表語從句。表語從句接在__________________之后，對主語進行解釋、說明，使主語的內(nèi)容具體化。表語be動詞或系動詞表語從句引導詞2Subordinatingconjunctions從屬連詞ConjunctionalPronouns連接代詞ConjunctionalAdverbs連接副詞what,who,whom,whose,which，whoever,whatever,whichever（強調(diào)無論是……）when,where,how,why

Leadingwords(引導詞)ofPredicativeclauses（不作成分）（作主、賓、表、定語）（均有各自意義）（作狀語，均有各自意義）表語從句引導詞that,whether，because，asif,asthough(無意義）(是否）(因為）(似乎，好像）that、whether(不能用if)1.Mybeliefis______________Iwillsucceedbyworkinghard.我的信念是通過努力我會成功。2.Themostpleasantthingoftherainyseasonis________onecanbeentirelyfreefromdust.雨季最令人愉快的事情是完全沒有灰塵。3.Theproblemis______________wecanfindthemthere.問題是我們能否在那里找到他們。whetherthatthat總結(jié)：that在從句中不充當成分，也沒有實際意義，且不可省略；whether也不能省略，意思為：是否。because1.Hehasheartdisease.Thatis___________hehasbeensmokingtoomuch.他有心臟病。那是因為他抽煙太多。2.Ididn'tphoneher,andthatwas_________________________________.我沒有給她打電話。那是因為我生她的氣了。總結(jié)：說明主語所表示的事件發(fā)生的原因，意為___________。因為becausebecauseIgotangrywithherasif,asthough總結(jié)：由asif,asthough引導表語從句，意為_______________.常接在look,appear,seem等系動詞后面。1.Itsoundsasifhecouldsolvetheproblem.聽上去他能解決問題。2.Itlooksasifitisgoingtorain.看上去天要下雨了。3.Theyoungmanwithlonghairlooksasifhewereagirl.那個留著長發(fā)的年輕人像一個女孩。似乎；好像注意：asif/asthough引導的表語從句如果是事實，就用陳述語氣；如果與事實不符，就用虛擬語氣。1.Itsoundsasifsomeoneisknockingatthedoor.(與事實相符)2.Tomlikestotalkbigasifhewereanimportantperson.

(對現(xiàn)在的虛擬，用一般過去時，be動詞用were)3.Heopenshismouthashewouldsaysomething.

(對將來的虛擬，用would/could/might+do)4.HetalkedaboutRomeasifhehadbeen

there.(對過去的虛擬，用haddone)which(ever)1.Thequestionis

.問題是哪個學生英語最好。2.Ireadaboutitinsomebookoranother,butwhatIdon'tknowis

.我在某本書里讀到過，但我不知道是哪一本書?？偨Y(jié)：which在引導表語從句時,常在句中充當______,表示：__________whichstudentisthebestatEnglishwhich(book)itis哪一個定語who(ever)、whom(ever)、whose、what(ever)1.Youcanbe__________youwanttobe.你可以成為你想做的任何人。2.Thequestionis____________causedtheaccident.問題是什么造成了這場事故。3.Themostimportantthingis____________responsibilityitis.最重要的就是它是誰的責任。4.Thisis__________myfatherhastaughtme--tobeanhonestman.這就是我父親教給我的--做一個誠實的人?？偨Y(jié)：who(ever)、whom(ever)、whose、what(ever)在從句中作__________、_____________、________、________。whoeverwhatwhosewhat主語賓語表語定語when、where、why、how1.Thisis____________Idon'tagreewithyou.這就是我不同意你的地方。2.Thequestionis__________wecangetintouchwithhim.問題是我們怎樣才能和他聯(lián)系上。3.Thatis_________Igotwetthrough.

那就是為什么我被淋濕了?？偨Y(jié)：when、where、why、how引導從句，在從句中作________，表示時間、地點、原因、方式。wherehowwhy狀語表語從句易錯點3(1)that與what的區(qū)別總結(jié)：that引導表語從句時，是連詞，在從句中不作成分；what是連接代詞，引導表語從句時，在從句中作主語、賓語或表語。1.Thefactis_____________wetendtomakemistakeswhenwearenervous.2.Thisis______________Iwanttosay.3.Thequestionis______________causedtheaccident.4.Thetroubleis_____________shehaslosthisaddress.thatwhatthatwhat(2)because與why的區(qū)別總結(jié)：because引導表語從句時強調(diào)原因，why引導表語從句時強調(diào)結(jié)果。whybecause注意：名詞reason作主語時，后面的表語從句表示原因時要用that引導，而不用because。(3)虛擬語氣用于表語從句在表示建議、勸告、命令等含義的名詞后的表語從句中，謂語動詞用should＋動詞原形should可以省略。1.Mysuggestionisthat________________________adiscussionaboutthismatterinsteadofjustlayingitaside.我的建議是我們應當討論一下這件事，而不應該只是把它放在一邊。2.Thedoctor'sadviceis___________________________moreexercise.醫(yī)生的建議是我們應該多做運動。we(should)havethatwe(should)take鞏固練習4asifthatwhatwhowhenhowwhywhosewhichwhether?A:Absolutely!Youmaynotbelieveit,butthatwas___________happenedattheinitialstageofourgroup'sresearchondevelopingavaccineformalaria.?B:Yes,itis.Anditseemed__________thetheorieswereuseful,butthefactwas_________wecouldn'tpersuadeoneanotherthatonetheorywasbetterthananother.whatasifthat?C:Exactly.Theproblemwasnotabout______________allourtheorieswereequallygood,butindeciding_______________________theorytodependupon.?D:Werealizedthatwhatwecaredaboutwasnot_______________aspectweneededtodevelopatheoryin,butrather_____wecanreducethecostofavaccinewithoutreducingitseffect!?E:You'reright.Atlast,webecamefocusedonthekeyissue,whichwas_________wehadtocarryouttheresearchinthefirstplace.whetherwhich/what/whosewhich/whathowwhy?Maria:Thismixoftheoryanddataisoneofthekeycharacteristicsofwhatwecallscience.?David:_________________?Maria:Withyourtheoreticalframework??David:__________________?Maria:Decidingonatheoryisdefinitelyofcriticalimportance.?David:_________________?MariaThiswaswhenyoushouldhavecalmeddownandgotdowntodoingsomesolidwork.?David:_________________?Maria:Sowhathappenedintheend??David:_________________BCEDA1.Thefactwas

.事實是他沒有做真正的努力。2.Thequestionis

.問題是這部電影是否值得看。3.

shehadknownMillieforyears.看起來好像她認識米莉已有好多年了。4.Myadviceis

asoftenaspossible.我的建議是你盡可能經(jīng)常地練習說英語。2.Completethesentences.thathedidn'treallytrywhetherthefilmisworthseeingItseemedasthough/ifthatyou(should)practisespeakingEnglish5.That's

.那就是我第一次遇見她的地方。6.Theproblemis

.問題是誰才真正適合做這份艱苦的工作。7.Thatis

.那就是我想讓你在這兒工作的原因。8.Iwaslateforschoolthismorning.

lastnight.今天早上我上學遲到了。那是因為我昨晚睡得太晚了。whereIfirstmetherwhoisreallyfitforthehardjobwhyIwantyoutoworkhereThat'sbecauseIstayeduptoolateEveryoneknew1.

Wendywas