【课件】Unit 5 Discovering Useful Structures 课件 高中英语人教版选择性必修第一册

S1U5DiscoveringUsefulStructuresSubjectClausesⅠ.学习理解Lookatthecomplexsentencesbelowandstatethefunctionsofthenounclausesitalicized.Thenfindsimilarcomplexsentencesfromthetext.

WhatYuanLongpingreallycaredaboutwasnotmoneyorcelebrity.

ThatYuanLongpinghadrealizedhisdreamofseawaterricesurprisedthewholeworld.ItsurprisedthewholeworldthatYuanLongping

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

thesewheatfarmerswilljointhispilotexperimentremainsanunansweredquestion.How

wecanfindasuitablesolutiontoproducesufficientfoodwhilekeepingtheenvironmentsafeisanimportanttopicforustoresearch.What

worriesmanypeopleisthatthesechemicalsmayevencausecancer.Itamazedallofusthat

thesevegetablescanevenbeplantedwithoutanysoilthroughthisnewtechnology.That

thelifestyleisslowerandhealthieristhereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.从句中成分完整，询问“时间”——when从句中成分完整，询问“方式”——how从句中缺少主语，表示“什么”——whatIt为形式主语，that引导的从句是句子真正的主语从句中结构完整且描述的是事实——thatⅡ.应用实践主语从句的连接词及其句法功能1.连接词that和whether/if（1）that在从句中不充当任何成分，本身无任何意义，只起连接作用，但不可省略（2）whether/if在从句中不充当任何成分，其连接作用，意为“是否”，不可省略即时演练——完成句子

（1）她能来演讲使我们很惊讶。_____________________________________________________________（2）她喜不喜欢这个颜色都没关系。_____________________________________________________________Ⅱ.应用实践主语从句的连接词及其句法功能2.连接代词who\whom\whose\what\which\whichever\whoever\whomever\whatever连接代词引导主语从句，在从句中作主语、宾语、表语或定语3.连接副词when\where\how\why连接副词引导主语从句并在从句中作状语即时演练——完成句子

______Johnwaslatefortheclasshasbeenunexplained.解题步骤：（1）分析句子成分，明确名词性从句在句中的功能。（主语？宾语？表语？）（2）明确名词性从句所表达的意义。（3）明确名词性从句中所需要的成分及意义。（4）确定名词性从句的连接词。Ⅱ.应用实践主语从句的连接词及其句法功能即时演练——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.应用实践Readthepassageandunderlineallthesubjectclauses.Theninpairs,discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Grandmahasbeencomplainingaboutthevegetablessoldinthesupermarket,whichhavebeengrownusingchemicalfertilisers.Toher,thattheylookbeautifulontheoutsideisobvious.However,whatsheisunhappyaboutisthelowernutritionalvalueandreducedflavour.Nowthatbothofmygrandpparentshaveretiredfromtheirjobsinthecity,howtheyaregoingtospendtheirretirementisanimportantdecisionforthem.Whethertheycanliveahealthylifeisthefirstthingtheyareconsidering.Sotheyhavemadeuptheirmindstomovetothecountryside,wheretheycanliveagreenlife.Ⅱ.应用实践Discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Grandmahasbeencomplainingaboutthevegetablessoldinthesupermarket,whichhavebeengrownusingchemicalfertilisers.Toher,thattheylookbeautifulontheoutsideisobvious.However,whatsheisunhappyaboutisthelowernutritionalvalueandreducedflavour.Nowthatbothofmygrandpparentshaveretiredfromtheirjobsinthecity,howtheyaregoingtospendtheirretirementisanimportantdecisionforthem.Whethertheycanliveahealthylifeisthefirstthingtheyareconsidering.Sotheyhavemadeuptheirmindstomovetothecountryside,wheretheycanliveagreenlife.Ⅱ.应用实践Discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Toher,thattheylookbeautifulontheoutsideisobvious.However,whatsheisunhappyaboutisthelowernutritionalvalueandreducedflavour.Howtheyaregoingtospendtheirretirementisanimportantdecisionforthem.Whethertheycanliveahealthylifeisthefirstthingtheyareconsidering.Ⅱ.应用实践主语从句常用it作形式主语，常见句型有：1.It+be+adj.+主语从句.（obvious\clear\(un)certain\true\natural\strange\likely...）

2.It+be+名词词组+主语从句.（nowonder\anhonour\apity\a(no)surprise）3.It+be+过去分词+主语从句.（said\suggested\reported\thought\expected\proved...）4.It+be+不及物动词+主语从句.（happen\seem\appear\remain...）5.It+be+及物动词+宾语+主语从句.Ⅱ.应用实践注意：1.主语从句中谓语为(should)do...

a.若adj.为

：important\necessary\strange等b.若过去分词为：suggested\ordered\required\advised等

译：有人建议会议延期召开。__________________________________2.从句要用陈述语气

a.Whatwewilldonextshouldbedecided.b.Whatwillwedonextshouldbedecided.Ⅱ.应用实践3.主谓一致：

（1）

从句作主语时，主句的谓语一般用第三人称单数;e.g.Whatsurprisedmemost______(be)thatthemaninragswasamillionaire.

（2）若what引导主语从句且主句为主系表结构，主句谓语动词与表语的数保持一致。e.g.Whattheschoolneedsmost______(be)books.

Ⅱ.应用实践3.主谓一致：

（3）

如果由and连接两个或两个以上的主语从句作主语，谓语动词用复数。e.g.Whenwilltheyleaveandwherewilltheygo_____(have)noty