人教版（2019）选择性必修 第一册Unit 5 Working the Land Discovering Useful Structures 课件

SubjectClause

主语从句Step1学习理解

活动一:识别主语从句(Part1,P53)

LookatthecomplexsentencesbelowandstatetheFunctionsofthenounclausesitacised.Thenfindsimilarcomplexsentencesfromthetext.1.WhatYuanLongpingreallycaredaboutwasnotmoneyorcelebrity.2.ThatYuanLongpinghadrealisedhisdreamofseawaterricesurprisedthewholeworld.3.ItsurprisedthewholeworldthatYuanLongpinghadrealisedhisdreamofdevelopingseawaterrice.Suggestedanswers:

1.subject

2.subject3.subject1.However,whatconcernedhimmostwasthatfarmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.

2.Howthiscouldbedonewasachallengingquestionatthetime.However,whetheritwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.3.WhatimpressespeoplemostaboutYuanLongpingishisongoingabilitytofulfilhisdreams.活动二：补全句子Matchthesentenceparts,andthentranslatethecompletedsentencesintoChinese.Payattentiontohowthe

subjectsareintroduceddifferentlv.A.WhatworriesmanypeopleB.ThatthelifestyleisslowerandhealthierC.Howwecanfindasuitablesolutiontoproduce

sufficientfoodwhilekeepingtheenvironmentsafeD.Whenthesewheatfarmerswilljointhispilot

experimentE.Itamazedallofusthat1.

remainsanunansweredquestion.2.

isanimportanttopicforustoresearch.3.

isthatthesechemicalsmayevencause

cancer4.

thesevegetablescanevenbeplanted

withoutanysoilthroughthisnewtechnology.5.

isthereasonwhysomepeoplepreferto

liveinthecountryratherthaninthecity.Suggestedanswers:1.D这些小麦农户什么时候会加入预试验仍然不得而知。解析:当主语从句中句子成分完整，询问“时间”时，主语从白用when引导。2.C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。解析：主语从句中句子成分完整，询问“方式”时,主语从句用how引导。3.A令很多人担心的是，这些化学制品甚至可能导致癌症。解析：主语从句中缺少主语，表示“什么”用what引。4.E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。解析：it为形式主语,that引导的从句是句子真正的5.B主语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。解析：主语从句结构完整且描述的是事实，所以用that引导。活动三，强化训练Readthepassageandunderlineallthesubjectclauses.

Theninpairs,discusswhetherthesentenceswithsubject

clausescanbeparaphrased.Grandmahasbeencomplainingaboutthe

vegetablessoldinthesupermarket,whichhavebeen

Brownusingchemicalfertilisers.Toher,thatthey

lookbeautifulontheoutsideisobvious.However,

whatsheisunhappyaboutisthelowernutritional

valueandreducedflavour.Nowthatbothofmy

grandparentshaveretiredfromtheirjobsinthecity,

howtheyaregoingtospendtheirretirementisan

importantdecisionforthem.Whethertheycanlivea

healthylifeisthefirstthingtheyareconsidering.So

theyhavemadeuptheirmindstomovetothe

countryside,wheretheycanliveagreenlife.Suggestedanswers:1....,thattheylookbeautifulontheoutsideisobvious..,itisobviousthattheylookbeautifulontheoutside.2.However,whatsheisunhappyaboutisthelower

nutritionalvalueandreducedflavour.(Can'tbe

paraphrased)3..,howtheyaregoingtospendtheirretirementis

animportantdecisionforthem.>...,itisanimportantdecisionforthemhowthey

aregoingtospendtheirretirement.4.Whethertheycanliveahealthylifeisthefirst

thingtheyareconsidering.

>Itisthefirstthingtheyareconsideringwhethertheycanliveahealthylife.小结：主语从句常用it作形式主语，常见句型有：1.It十be十形容词十主语从句.(obvious,clear,

certain,uncertain,true,natural,strange,likely..)2.It十be十名词十主语从句.(apity,afact,amystery,

ashame,anhonour,aquestion,commonknowledge...)3.It十be十过去分词十主语从句.announced,

believed,expected,hoped,decided,

reported,said,

shown,wellknown,proved...）（此结构中的主语从句不可提前）4.It十不及物动词十主语从句．(seem,appear,

happened..）（此结构中的主语从句不可提前）Step2迁移创新

活动四：情境应用WhatqualitiesdoyouthinkmakeapersonlikeYuan

Longpingsosuccessful?Workingroups.Haveadiscussionandprepareapresentation.Thefollowingpointsand

expressionsmayhelpyou.•his/herdeterminationtotacklethecrisisof...•his/herintenseefforttoovercome..•his/herdreamtodevelop..•his/herloveandcarefor..•he/shesucceededin...•he/shenevergaveup..•he/sheisdevotedto...Whatimpressesmemostisthat...Whatmakeshim/heragreat.…isthat.Itisimportantthat.Whether.dependson..That……ishis/hermostimportantquality.Suggestedanswer:

Helloeveryone!TodayI’mgladtoshareyouagreat

pioneerinagriculture-YuanLonging.Itisknown

tousallthatYuanLongingalwaysconsidershimself

afarmer.Actually,heisfamousasthe“fatherof

hybridrice”bothinChinaandAbroad.

Whatimpressesmemostisthatherefusedhisparents’suggestiontostudyscienceormedicineinacollegeand

wenttoreceiveaneducationatSouthwestAgricultural.ThatCollegeinChongqing.Whatmakeshimagreatscientistishisdeterminationtotacklethecrisisofthepoorharvestsandstarvationoffarmers.Itisimportantthathehadadreamtodevelophighoutputricehybridrice.Whetherhisdreamwouldbeaccomplisheddependedonhisintenseefforttoovercomeallthedifficultiesduringtheresearch.Itexcitedthewholeworldthathesucceededinfindingthesolutiontoboostingyieldinthefield.Thathisloveandcareforhispeoplemakeshim