【課件】Unit 5 Discovering Useful Structures 課件 高中英語人教版選擇性必修第一冊

S1U5DiscoveringUsefulStructuresSubjectClausesⅠ.學習理解Lookatthecomplexsentencesbelowandstatethefunctionsofthenounclausesitalicized.Thenfindsimilarcomplexsentencesfromthetext.

WhatYuanLongpingreallycaredaboutwasnotmoneyorcelebrity.

ThatYuanLongpinghadrealizedhisdreamofseawaterricesurprisedthewholeworld.ItsurprisedthewholeworldthatYuanLongping

hadrealisedhisdreamofdevelopingseawaterrice.SubjectSubjectSubjectPara2.However,whatconcernedhimmostwasthatfarmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.Para3.HowthiscouldbedonewasachallengingquestionatthetimeHowever,whetheritwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.Para6.WhatimpressespeoplemostaboutYuanLongpingishisongoingabilitytofulfillhisdreams.Ⅱ.應用實踐Matchthesentenceparts,andthentranslatethecompletedsentencesintoChinese.Payattentiontohowthesubjectsareintroduceddifferently.WhatworriesmanypeopleThatthelifestyleisslowerandhealthierHowwecanfindasuitablesolutiontoproducesufficientfoodwhilekeepingtheenvironmentsafeWhenthesewheatfarmerswilljointhispilotexperimentItamazedallofusthat________remainsanunansweredquestion.________isanimportanttopicforustoresearch.________isthatthesechemicalsmayevencausecancer.________thesevegetablescanevenbeplantedwithoutanysoilthroughthisnewtechnology.________isthereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.DCAEBⅡ.應用實踐TranslatethecompletedsentencesintoChinese.Payattentiontohowthesubjectsareintroduceddifferently.When

thesewheatfarmerswilljointhispilotexperimentremainsanunansweredquestion.How

wecanfindasuitablesolutiontoproducesufficientfoodwhilekeepingtheenvironmentsafeisanimportanttopicforustoresearch.What

worriesmanypeopleisthatthesechemicalsmayevencausecancer.Itamazedallofusthat

thesevegetablescanevenbeplantedwithoutanysoilthroughthisnewtechnology.That

thelifestyleisslowerandhealthieristhereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.從句中成分完整，詢問“時間”——when從句中成分完整，詢問“方式”——how從句中缺少主語，表示“什么”——whatIt為形式主語，that引導的從句是句子真正的主語從句中結構完整且描述的是事實——thatⅡ.應用實踐主語從句的連接詞及其句法功能1.連接詞that和whether/if（1）that在從句中不充當任何成分，本身無任何意義，只起連接作用，但不可省略（2）whether/if在從句中不充當任何成分，其連接作用，意為“是否”，不可省略即時演練——完成句子

（1）她能來演講使我們很驚訝。_____________________________________________________________（2）她喜不喜歡這個顏色都沒關系。_____________________________________________________________Ⅱ.應用實踐主語從句的連接詞及其句法功能2.連接代詞who\whom\whose\what\which\whichever\whoever\whomever\whatever連接代詞引導主語從句，在從句中作主語、賓語、表語或定語3.連接副詞when\where\how\why連接副詞引導主語從句并在從句中作狀語即時演練——完成句子

______Johnwaslatefortheclasshasbeenunexplained.解題步驟：（1）分析句子成分，明確名詞性從句在句中的功能。（主語？賓語？表語？）（2）明確名詞性從句所表達的意義。（3）明確名詞性從句中所需要的成分及意義。（4）確定名詞性從句的連接詞。Ⅱ.應用實踐主語從句的連接詞及其句法功能即時演練——完成句子

(1)______theEnglishspeechcontestwillbeheldhasnotyetbeendecided.A.WhereB.WhenC.WhetherD.AlloftheaboveE.Noneoftheabove(2)_______wantstowintheelectionwillfacelotsofdifficulties.A.WhoB.Whoever(3)_______partofthecountryhewilltraveltoneedsdiscussing.A.WhichB.Whose(4)_______movedmemostdeeplywasthedeeplovebetweentheboyandhisparents.A.WhoB.WhatC.WhenD.WhereⅡ.應用實踐Readthepassageandunderlineallthesubjectclauses.Theninpairs,discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Grandmahasbeencomplainingaboutthevegetablessoldinthesupermarket,whichhavebeengrownusingchemicalfertilisers.Toher,thattheylookbeautifulontheoutsideisobvious.However,whatsheisunhappyaboutisthelowernutritionalvalueandreducedflavour.Nowthatbothofmygrandpparentshaveretiredfromtheirjobsinthecity,howtheyaregoingtospendtheirretirementisanimportantdecisionforthem.Whethertheycanliveahealthylifeisthefirstthingtheyareconsidering.Sotheyhavemadeuptheirmindstomovetothecountryside,wheretheycanliveagreenlife.Ⅱ.應用實踐Discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Grandmahasbeencomplainingaboutthevegetablessoldinthesupermarket,whichhavebeengrownusingchemicalfertilisers.Toher,thattheylookbeautifulontheoutsideisobvious.However,whatsheisunhappyaboutisthelowernutritionalvalueandreducedflavour.Nowthatbothofmygrandpparentshaveretiredfromtheirjobsinthecity,howtheyaregoingtospendtheirretirementisanimportantdecisionforthem.Whethertheycanliveahealthylifeisthefirstthingtheyareconsidering.Sotheyhavemadeuptheirmindstomovetothecountryside,wheretheycanliveagreenlife.Ⅱ.應用實踐Discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Toher,thattheylookbeautifulontheoutsideisobvious.However,whatsheisunhappyaboutisthelowernutritionalvalueandreducedflavour.Howtheyaregoingtospendtheirretirementisanimportantdecisionforthem.Whethertheycanliveahealthylifeisthefirstthingtheyareconsidering.Ⅱ.應用實踐主語從句常用it作形式主語，常見句型有：1.It+be+adj.+主語從句.（obvious\clear\(un)certain\true\natural\strange\likely...）

2.It+be+名詞詞組+主語從句.（nowonder\anhonour\apity\a(no)surprise）3.It+be+過去分詞+主語從句.（said\suggested\reported\thought\expected\proved...）4.It+be+不及物動詞+主語從句.（happen\seem\appear\remain...）5.It+be+及物動詞+賓語+主語從句.Ⅱ.應用實踐注意：1.主語從句中謂語為(should)do...

a.若adj.為

：important\necessary\strange等b.若過去分詞為：suggested\ordered\required\advised等

譯：有人建議會議延期召開。__________________________________2.從句要用陳述語氣

a.Whatwewilldonextshouldbedecided.b.Whatwillwedonextshouldbedecided.Ⅱ.應用實踐3.主謂一致：

（1）

從句作主語時，主句的謂語一般用第三人稱單數(shù);e.g.Whatsurprisedmemost______(be)thatthemaninragswasamillionaire.

（2）若what引導主語從句且主句為主系表結構，主句謂語動詞與表語的數(shù)保持一致。e.g.Whattheschoolneedsmost______(be)books.

Ⅱ.應用實踐3.主謂一致：

（3）

如果由and連接兩個或兩個以上的主語從句作主語，謂語動詞用復數(shù)。e.g.Whenwilltheyleaveandwherewilltheygo_____(have)noty