Unit5WorkingtheLandDiscoverUsefulStructures課件-高中英語人教版選擇性2

SubjectClause主語從句Unit5DiscoveringUsefulStructuresObservethefollowingsentencesanddiscoverSubjectClauses.1、WhatYuanLongpingreallycaredaboutwasnotmoneyorcelebrity.2、ThatYuanLongpinghadrealisedhisdreamofseawaterricesurprisedthewholeworld.3、ItsurprisedthewholeworldthatYuanLongpinghadrealisedhisdreamofdevelopingseawarerrice.Presentation5.Tofindyourwaycanbeaproblem.

4.Smokingisbadforyou.1.Jakeworkshard.2.Theyarestudents.

3.Theoldshouldberespected.What’sthesubject?（什么是主語和主語從句？）6.Whatshesaidisnotyetknown.結(jié)論：?主語是句子說明的人或事物，一般放在______。

?從句在主句中充當(dāng)

的從句叫做主語從句。主語從句是名詞性從句的一種,在復(fù)合句中作主語,相當(dāng)于名詞。主語從句的位置可以在句首,也可以用it作形式主語,主語從句放在后面。連接詞有從屬連詞，連接代詞和連接副詞句首主語從句的定義：主語用橫線劃出句子中的主語：Thatshesurvivedtheaccidentisamiracle.

她在事故中幸免于難簡直是個奇跡。Whethertheplanwillbecarriedoutisstill

unknown.=Itisstillunknownif/whethertheplanwill

becarriedout.這個計劃是否會實施還不知道。?that_____成分，___意義，____省略。?whether____成分，__意義，譯為_____。?從屬連詞引導(dǎo)主語從句只起引導(dǎo)作用，在主語從句中不充當(dāng)任何成分。?whether可置于句首和句中；if不可置于句首?？捎胕t作形式主語，if引導(dǎo)的從句后置作真正主語。不做是否無不能不做有1.從屬連詞：that、whether、ifWhowillgoisunknown.?who在主語從句中充當(dāng)_____,譯為___。Whatweneedismoretime.?what在主語從句中充當(dāng)_____,譯為____。WhichbookIshallchoosehasn'tbeendecided.?which在主語從句中充當(dāng)_______,譯為_______。Whoeverbreaksthelawwillbepunished.?whoever在主語從句中充當(dāng)_______,譯為_______。2.連接代詞:

who、whoever、whom、whose、what、whatever、which、whichever賓語什么主語誰主語無論誰定語哪一個Whenwewillleavehasn'tbeendecided.?when在從句中充當(dāng)_______,譯為______。Wherethemeetingwillbeheldisnotknown.?where在從句中充當(dāng)_______,譯為______。Whyhecriesisnotclear.?why在從句中充當(dāng)_______,譯為_______。Howshekeepshealthyisasecret.?how在從句中充當(dāng)_______,譯為_______。3.連接副詞：when、where、how、why狀語什么時候狀語哪里狀語為什么狀語怎樣1.Whetherthepatientwillbetaken

______unknown.單個從句做主語，大多數(shù)使用_______(單數(shù)？復(fù)數(shù)？)2.Whenandwherethepatientwillbetaken_____unknown.由兩個連接詞引導(dǎo)同一個主從，謂動使用____(單數(shù)？復(fù)數(shù)？)3.Whenthetaskcanbefinishedandwhether

hecanhavearest_____unknown.主語為and連接的兩個主從時，謂動使用____(單數(shù)？復(fù)數(shù)？)4.Whathewantsmost____stayingwithhisfamily.

Whattheyneed_______masks(口罩).what在主從中做賓語時，謂語的單復(fù)數(shù)取決它后面的表語。主語從句一律用_____語序，即主語在前，謂語在后。單數(shù)is單數(shù)is復(fù)數(shù)areisare陳述1.主謂一致2.主語從句的語序注意123從屬連詞(不作成分）連接代詞（作主,賓,表,定語）連接副詞（作狀語）what,who,whom,which,

whose,wh+everhow,when,where,whythat(無意義),whether（句首、中）/if（中）：是否Summary“缺什么補(bǔ)什么”原則缺主語，指人用____，指物用_____缺賓語，指人用________，指物用____缺時間狀語用______；地點狀語用______；原因狀語用_____；方式狀語用_____；定語用____________；什么都不缺用_______，缺“是否”_______whowhatwho/whomwhatwhenwherewhyhowwhich/whose主語從句的連接詞怎么選？thatwhether“缺什么補(bǔ)什么”是指從句與連詞之間的關(guān)系。Thatallcountriesworktogetherisimportant.

Itisimportantthatallcountriesworktogether.

主語從句為了避免頭重腳輕現(xiàn)象,用it做_______，而把從句放在后面充當(dāng)_________。真正的主語形式主語3.主語從句太長怎么辦？1.It+be+形容詞+主語從句

做......是......的形容詞clear,obvious,likely,probable,true…例：1.Itisnotclearwhetherhetoldalie.2.It+be+過去分詞+主語從句據(jù)......said,reported,believed,thought,announced…過去分詞例：1.Itissaidthattheyareidenticaltwins.

?此句型中的形容詞是important,necessary等時，從句應(yīng)使用虛擬語氣例：Itisimportantthatwe(should)learnEnglishwell.

?若過去分詞是suggested,ordered,required,advised,requested等表示建議、要求、命令等詞時，從句應(yīng)該使用虛擬語氣。例：Itissuggestedthatstudents(should)maketheirbedbythemselves.3.It+be+名詞+主語從句做......是......的名詞apity，anhonor，agoodidea，afact,a/nosurprise，nowonder......例：It

isapitythathemissedsuchaninterestingfilm,4.It+不及物動詞+主語從句seem,happen,appear,look,occur,turnout…不及物動詞例：It

happenedthattheywereoutthatday.碰巧那天他們不在家。

Itseemsthatitisgoingtorain.

看起來要下雨了。5.It+及物動詞+賓語+主語從句及物動詞worry,shock…例：Itshocksmethathefailedinthisexam.他沒通過考試，震驚到我了?！炯磿r演練】1.____isafactthatEnglish

isbeingacceptedasaninternationallanguage.2.Itisuncertain_______hecancometoJenny’sbirthdaypartyornot.3._______hemadeanimportantspeechatthemeetingwastrue.4._______isknowntousallthatAmericaisadevelopedcountry.5.Everyyear,_______makesthemostbeautifulkitewillwinaprizeintheKiteFestival.6.Yoursupportisimportanttoourwork.________youcandohelps.ItwhetherThatWhateverItwhoeverActivity2.MatchthesentencepartsandthentranslatethecompletedsentencesintoChinese.Payattentiontohowthesubjectsareintroduceddifferently._______remainsanunansweredquestion._______isanimportanttopicforustoresearch._______isthatthesechemicalsmayevencausecancer._______thesevegetablescanevenbeplantedwithoutanysoilthroughthisnewtechnology._______isthereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.WhatworriesmanypeopleThatthelifestyleisslowerandhealthier.Howwecanfindasuitablesolutiontoproducesufficientfoodwhilekeepingtheenvironmentsafe.Whenthesewheatfarmerswilljointhispilotexperiment.ItamazedallofusthatDCAEBActivity3Readthepassageandunderlineallthesubjectclauses.Theninpairs,discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Grandmahasbeencomplainingaboutthevegetablessoldinthesupermarket,whichhavebeengrownusingchemicalfertilisers.Toher,thattheylookbeautifulontheoutsideis

obvious.However,whatsheisunhappyabout

is

thelowernutritionalvalueandreducedflavour.Nowthatbothofmygrandparentshaveretiredfromtheirjobsinthecity,howtheyaregoingtospendtheirretirementis

animportantdecisionforthem.

Whethertheycanliveahealthylifeis

thefirstthingtheyareconsidering.Sotheyhavemadeuptheirmindstomovetothecountryside,wheretheycanliveagreenlife.Activity4WhatqualitiesdoyouthinkmakeapersonlikeYuanLongpingsosuccessful?Workingroups.