高中英语：Book3 Unit4 subject clause课件人教版必修3.ppt

m3u4discoveringusefulstructures nounclauseassubject主语从句 welcometoourclass yuanqingseniorhighschool 2 3 4 5 6 7 yuanqingismynewworkingplace 1 allofyouareverykindandpolitetome teachingenglishhereishardwork whatilikemostisthatyouarequiteactiveandlivelyinmyclass whatimpressesmemostisthatalltheteachersherearekindandhard working itisobviousthatmanyofyouwanttoimproveyourenglish howicanhelpyoulearnenglishbetterisstillaquestiontome 2 3 4 5 6 7 yuanqingismynewschool 1 allofyouareverykindandpolitetome teachingenglishhereishardwork whatilikemostisthatyouarequiteactiveandlivelyinmyclass whatimpressesmemostisthatalltheteachersherearekindandhard working itisobviousthatmanyofyouwanttoimproveyourenglish howicanhelpyoulearnenglishbetterisstillaquestiontome 2 3 4 5 6 7 yuanqingismynewschool 1 allofyouareverykindandpolitetome teachingenglishhereishardwork whatilikemostisthatyouarequiteactiveandlivelyinmyclass whatimpressesmemostisthatalltheteachersherearekindandhard working itisobviousthatmanyofyouwanttoimproveyourenglish howicanhelpyoulearnenglishbetterisstillaquestiontome 1 wasuncertainuntilbetween4 5and3 8billionyearsago 2 itwasnotclear 3 isthatastheearthcooleddown waterbegantoappearonitssurface 4 itwasnotimmediatelyobvious 5 isthatthecontinuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas 6 stillremainamystery 7 willdependonwhetherthisproblemcanbesolved discoveringusefulstructure whatisevenmoreimportant whethertheshapewouldlastornot whatitwastobecome thatwaterwastobefundamentaltothedevelopmentoflife whatmanyscientistsbelieve whytheysuddenlydisappeared whetherlifewillcontinueontheearthformillionsofyearstocome line7 line6 line13 line18 line21 line41 line50 1 主语从句引导词 其中 用 而不是if引导主语从句2 一般来说主语从句都是放在 但有时为了使句子保持平衡 避免 头重脚轻 常用作形式主语 从而把 放在后面 whatwediscoveraboutthestructure what where when which whether how that whether 句首 it 主语从句 theearthbeganisnotknowntohumans mostscientistsbelieveaboutthebeginningoftheearthisthe bigbang theory theearthisbecomingwarmisagoodtopicforresearch thereislifeonotherplanetsiswhatscientistswanttofindout plutoisnolongerconsideredaplanetinoursolarsystemsurprisedus whether that why what how what how why how whether that itsurprisedusthatplutoisnolongerconsideredaplanetinoursolarsystem conclusion that引导主语从句只起连接作用 不担任句子成分 theearthisasolidglobe that isknowntousall itisknowntousallthattheearthisasolidball use it torewritetwosentences howlifebeganontheearthhasbeenlearnedinthetext ithasbeenlearnedinthetexthowlifebeganontheearth example 1 theformationoftheearthisstillunknownhowtheearthformedisstillunknown writesentencesindifferentways subjectclause 2 thedisappearanceofdinosaurspuzzedmanyscientists puzzedmanyscientists 3 humans acitivitieshascausedglobalwarming hascausedglobalwarming 4 manyscientists worryisthattheearthisbecominghotterandhotter isthattheearthisbecominghotterandhotter writesentencesindifferentways howdinosaursdisappeared whathumanshavedone whatmanyscientistsworryabout describetheproblemsbyusingthefollowingexpressionsitisapitythat itupsetsusalotthat itworriesusalotthat whatwehumansaredoingnowisthat whatmakesusworriedisthat problems problems itisapitythathumanbeingsarecuttingdowntoomanytrees whatmakesusworriedisthatweareputtingtoomuchcarbondioxidetotheair itupsetsusalotthatmanywildanimalsarebeingkilledsothattheyareindangerofdyingout whatmakesusworriedisthatwearedoinggreatharmtoourworld 棵树还差3705146棵树 1294854 温室效应 气候异常冰川融化 海面升高动植物减少 开花期提前 应对气候变化 减少二氧化碳排放 需要我们从身边做起 从今天开始你也可以参与其中 joinusnow 低碳族low carbontribe low carbonlifestylefashionable 棵树还差3705146棵树 1294854 areyoualow carbonlifestylesupporter turnoffthelightthemomentyouleave 棵树还差3705146棵树 1294854 usehandkerchiefinteadoffacialtissue areyoualow carbonlifestylesupporter 棵树还差3705146棵树 1294854 drivelessifpossible areyoualow carbonlifestylesupporter 棵树还差3705146棵树 1294854 areyoualow carbonlifestylesupporter reade booksifpossible 棵树还差3705146棵树 1294854 低碳族low carbontribe low carbonlifestylefashionable 感谢您的参与 今天您减排了2406 1克二氧化碳相当于种植了0 13148棵树来吸收相应的二氧化碳目前互联网森林已种下1 295 088棵树 groupwork suggestionsonlow carbonlifestyle takeactionsnow usefulexpressionswhatwe dliketosuggestisthat whatwewanttosayisthat whatwecandois itissuggestedthat groupwork suggestionsonlow carbonlifestyle whatwesavetodayisforyourchildrenandyourchildren schildrentomorrow whatwedotodaymaycreateabetterworldtomorrow whetherourearthwillbeabetterhometomorrowdependsonhowwellwecanprotectit it ssuggestedthatweshouldprotectourworldasmuchaswecan writing writeashourpassageaboutwhatyoucandotolivealow carbonlifesgyle useatleast3sentenceswithnounclauseassubject homework visitwebsite errors 1 heissaidthathehasboughtanewcar 2 thatyousaidlastnightfrightenedhimmuch 3 theamericancivilwarbrokeoutin1861isknowntomanyofus 4 iftheywillcometothepartyisunknown alberteinstein beforeeinstein scientists beliefwasthatlighttraveledthroughspaceinastraightline butafteryeasofresearch einsteinsuggestedthatlightcomingfromthestarswasbentasitpassedthesun einstein ssuggestionwassonew itwassaid only3peopleintheworldcouldunderstanditatthattime hecouldprovehisideastootherscientistswasaproblem butitdidnotupseteinstein man