Unit5WorkingtheLandLearningAboutLanguage课件高二英语人教版选择性

Unit5LearningAboutLanguage1.Understandthekeyvocabularyinthetextandlearnhowtousethevocabularycorrectly.2.LearntounderstandtheuseofsubjectclausesincontextbyintroducingYuanLongping.主语从句引导词从属连词(不作成分）连接代词（作成分）连接副词（作状语）what,who,whom,whose,which,wh+everthat,whether(不能用if),when,where,how,why复合句中用作主语的从句叫主语从句，它属于名词性从句的一种。Whatmakesmeangryisherattitude.Whatweneedismoretime.WhichbookIshallchoosehasn’tbeendecided.Whoeverbreaksthelawwillbepunished.Itwasunclearwhattheywoulddo.连接代词连接词在从句中功能what,who,whom,wh+ever作主语、宾语等which,whose,作定语名词性从句主语从句：在复合句中充当主语成分的句子Thathefinishedwritingthecompositioninsuchashorttimesurprisedusall.他在很短的时间内写完作文让我们都很惊讶。（主语从句位于主句谓语动词之前）同位语从句：在复合句中充当同位语成分的句子，对前面的抽象名词进行解释说明宾语从句：在复合句中担任宾语成分的句子叫宾语从句表语从句：在复合句中，担任表语成分的句子Thequestioniswhenhecanarriveatthehotel.问题是，他什么时候可以到达酒店。（表语从句位于主句的be动词之后）Thegirlsweresurprisedatthefact

thatoceanshipscansailuptheGreatLakes.巨大的海轮可以开到五大湖，这让女孩们感到吃惊。Hetold

thathewouldgotothecollegethenextyear.他说他下一年上大学。（位于主句谓语动词动词、介词等词性后面）DiscoveringUsefulStructures：SubjectClausesDiscoveringUsefulStructures：SubjectClauses类别例词说明从属连词that,whether两者在从句中均不作成分，只起连接作用；that无实义，whether表示“是否”。连接代词who,what,which,whoever,whatever…在从句中作主语、宾语、表语、定语等成分。连接副词when,where,how,why…在从句中作时间、地点、方式、原因状语等成分。DiscoveringUsefulStructures：SubjectClauses【练习1】——用whether,that,whoever填空①________shebecameanartistmayhavebeenduetoherfather'sinfluence.②________wewillholdapartyintheopenairtomorrowdependsontheweather.③Everyyear,________makesthemostbeautifulkitewillwinaprizeintheKiteFestival.ThatWhetherwhoever主语从句中连接词的选择技巧(1)根据连接词在从句中所作的语法成分。(2)根据连接词在从句中的意义。DiscoveringUsefulStructures：SubjectClauses句型说明It＋系动词＋形容词＋主语从句常用于此句型的形容词有important,(un)likely，possible,necessary,natural,wrong等。It＋系动词＋名词＋主语从句常用于此句型的名词有fact，idea，honour，question，pity等。It＋系动词＋过去分词＋主语从句常用于此句型的过去分词，有known，proved，said，decided，suggested，thought等。It＋不及物动词＋主语从句常用于此句型的动词有appear，happen，seem，occur，matter等。

2．it作形式主语为保持句子平衡，常把主语从句后置，而用形式主语it代替。it作形式主语时常用于以下句型(见左表)【例句】It'spossiblethathehasbeentoBeijing.他有可能去过北京。It'sapitythatyoudidn'tattendthemeeting.你没参加这次会议太可惜了。Itseemsthatitisgoingtorain.看起来好像要下雨。Itisimportantthatheshouldknowaboutthis.他应该知道此事是重要的。Itissuggestedthatthemeetingbeputoff.有人建议会议延期召开。DiscoveringUsefulStructures：SubjectClauses【练习2】——完成句子①很可惜你不能来参加我的生日聚会。

_________thatyoucan’tattendmybirthdayparty.②有人建议这位老人到乡村休息一下。

____________thattheoldmanshouldgotothecountrysidetohavearest.③在我看来你好像不赞成这个计划。

____________thatyoudisagreewiththeplan.ItseemstomeIt'sapityIt'ssuggested【点津】(1)在“It＋be＋过去分词＋主语从句”结构中，过去分词若为suggested/ordered/required/advised等，主语从句中的谓语用(should)do。(2)在“It＋be＋形容词＋主语从句”结构中，若形容词important/necessary/strange等，主语从句中的谓语用(should)do。DiscoveringUsefulStructures：SubjectClauses二、主语从句中应注意的问题1．从句要用陈述语序Howhesucceededisstillapuzzle.他是如何成功的仍然是个谜。2．主谓一致(1)从句作主语时，主句的谓语一般用单数形式。Wherehewillgetajobaftergraduationhaspuzzledhimmuch.毕业后到哪儿找一份工作使他很困惑。(2)如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句时，谓语动词用单数。Whentheywillstartandwheretheywillgohavenotbeendecidedyet.他们将在什么时候动身以及要去哪里还没定下来。Whenandwheretheywillholdthemeetingisnotclear.他们何时何地召开会议还不清楚。1.WhatYuanLongpingreallycaredaboutwasnotmoneyorcelebrity.➞2.ThatYuanLongpinghadrealisedhisdreamofseawaterricesurprisedthewholeworld.➞3.ItsurprisedthewholeworldthatYuanLongpinghadrealisedhisdreamofdevelopingseawaterrice.➞DiscoveringUsefulStructures：SubjectClausesSubjectSubjectSubjectDiscoveringUsefulStructures：SubjectClausesA.WhatworriesmanypeopleB.ThatthelifestyleisslowerandhealthierC.HowwecanfindasuitablesolutiontoproducesufficientfoodD.WhenthesewheatfarmerswilljointhispilotexperimentE.Itamazedallofusthat1.

remainsanunansweredquestion.2.

isanimportanttopicforustoresearch.3.

isthatthesechemicalsmayevencausecancer.4.

thesevegetablescanevenbeplantedwithoutanysoilthroughthisnewtechnology.5.

isthereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.A.WhatworriesmanypeopleB.ThatthelifestyleisslowerandhealthierC.HowwecanfindasuitablesolutiontoproducesufficientfoodD.WhenthesewheatfarmerswilljointhispilotexperimentE.ItamazedallofusthatDCAEB1.

________remainsanunansweredquestion.2.

________isanimportanttopicforustoresearch.3.

________

isthatthesechemicalsmayevencausecancer.4.

________thesevegetablescanevenbeplantedwithoutanysoilthroughthisnewtechnology.5.

________isthereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.A.WhatworriesmanypeopleB.ThatthelifestyleisslowerandhealthierC.HowwecanfindasuitablesolutiontoproducesufficientfoodwhilekeepingtheenvironmentsafeD.WhenthesewheatfarmerswilljointhispilotexperimentE.ItamazedallofusthatEABCD1这些小麦农户什么时候会加入预试验仍然不得而知。2如何能够找到一个合适的解决办法，在保证环境安全的同时，生产足够的粮食，是一个需要我们研究的重要课题。3令很多人担心的是，这些化学制品甚至可能导致癌症。4令我们所有人惊讶的是，通过这种新技术，可以无土栽培这些蔬菜。5有些人更喜欢住在乡下而非城市的原因是前者生活节奏更慢、生活方式更健康。3ReadthepassageandunderlineallthesubjectclausesthanempiresdiscusswhetherthesentenceswiththesubjectclausescanbePARAPHRASED.【课堂作业】Ⅰ.单句语法填空1．Itisoftenthecase_______anythingispossibleforthosewhohangontohope.2．Yoursupportisimportanttoourwork._______youcandohelps.3．_______LiBai,agreatChinesepoet,wasbornisknowntothepublic,butsomewon'tacceptit.4．_______weunderstandthingshasalottodowithwhatwefeel.5．Exactly_______thepotatowasintroducedintoEuropeisuncertain,butitwasprobablyaround1565.6．_______thedelayedflightwilltakeoffdependsmuchontheweather.7．Ithink_______impressesmeabouthispaintingisthecoloursheuses.thatWhateverWhereHowwhenWhenwhat【课堂作业】Ⅱ.完成句子1．按照命令，操场建设要在下周完成。Itisorderedthattheconstructionofthesportsground

．2．她正买的是一些杂志。

．很明显刚刚有人来拜访过他。Itisclear

．4．这个地区的争执(dispute)何时结束让很多人困惑。

puzzlesmanypeople.5．她没有出席婚礼宴会的原因是她头痛。

isthatshehadaheadache.thatsomebodycametovisithimjustnowWhatsheisbuyingnowWhyshedidn'tattendtheweddingpartyWhenthedisputeinthisareawillstop1.urban与rural相对2.extensionextend(选必四Unit3)—extensionex-(out出)+tens(tostretch伸展)+-ion(名词后缀)→延伸3.chemical同源词：chemistry,chemist4.flavourflavour是英式英语，flavor是美式英语5.nutrition&nutritional&nutritiousnutrition：nutrit(feed滋养)+-ion词族：nutrition,nutritious,nutritional6.povertypoor—poverty7.organic词块：organicfood词族：organ,

organic,

organise,organisati