Unit5WorkingtheLandDiscoverUsefulStructures课件高中英语人教版选择性-1

Unit5LanguagesAroundtheWorldDiscoveringUsefulStructuresBytheendoftheclass,learnerswillbebetterabletoIdentifysubjectclauses，chooseproperleadingwordsandarrangecorrectwordorderofsubjectclauses，andfollowtheruleofSubject-PredicateAgreement(主谓一致)whenusingsubjectclauses.UsesubjectclausestowriteaparagraphaboutProf.YuanLongping’sgoodqualitiesandgreatachievements.LearningObjectivescontents301Definition定义02Linking-words连接词03Specialusage注意事项04Exercises即时练习Part1主语从句定义1.YuanLongpingisoneofChina’smostfamousscientists.2.Hemadelargedonationstosupportagriculturalresearch.3.Todevelopthefirsthybridricecosthimalotoftime.4.Keepingallthepeopleawayfromhungerishislifelongpursuit.5.Whathereallycareaboutwasnotmoneyorcelebrity.结论：☞主语是句子说明的人或事物，一般放在______。☞一个句子来充当_______叫主语从句。句首主语What’sthesubject?主语从句的定义：在句中充当主语的从句叫做主语从句,有时为了避免头重脚轻，常用

it作形式主语。Part2主语从句连接词7ThatYuanLongpingcaredlittleforcelebrityormoneywastrue.Whetheritwaspossibletodevelopthehybridricewasindebate.Whowillsolvethesoilproblemisunknown.Whichoneisthebesttoexpandoutputisnotclear.WhenYuanwouldretiretoalifeofleisurewasnevermentioned.Wherethehybridricecanbeplantedisaquestion.WhyYuandevelopedseawaterricewastofeedmorepeople.Findthelinkingwordsofsubject-clause.找出主语从句有哪些不同的连接词81.That

IloveEnglishisreal.2.Thatyoucantravelaroundtheworldisamazing.3.Whetherhewillcomeisuncertain.4.Whethertheboycouldwinmademecurious.从属连词：that、whetherthat引导的主语从句:that位于句首

无意义，不充当任何成分，不可省略。“whether+陈述句”做主语，whether引导的主语从句放句首，不能用if。有意义，翻译成“是否”。91.Whattherefugeeshavegonethroughisbeyondourimagination.2.WhowouldgettheopportunitytotraveltoBeijingisunknown.3.Which

studentwouldbethevolunteerisnotclear.4.Whoeverbreaksthelawwillbepunished.连接代词：What/who/which/whoever连接代词what,who,whose,which,whoever,whatever,whichever

引导的主语从句。连接代词在从句中充当主语、宾语、定语等成分，有意义且不可省略。引导的主语从句。10Whenwewillleavehasn'tbeendecided.Howshekeepshealthyisasecret.Whyhecriesisnotclear.Wherethemeetingwillbeheldisnotknown.连接副词When/how/why/where连接副词when,where,why,how

引引导的主语从句。连接副词在从句中充当状语，有意义且不可省略。用it作形式主语的主语从句通常，因为主语从句较长，为了避免句子结构头重脚轻，我们常用it作形式主语，而把主语从句放在主句之后。要注意由what,whatever,whoever引导的主语从句一般不用形式主语。eg.1.Thathewillattendthemeetinghasexcitedallofus.Ithasexcitedallofusthathewillattendthemeeting.2.

Whetherhecomesornotdoesn'tmattertoomuch.

It

doesn'tmattertoomuchwhether/ifhecomesornot.3.

WhereIshouldgoonavacationishardtodecide.

Itishardtodecidewhere

Ishouldgoonavacation.12It作形式主语常见形式(1)It+be+形容词（obvious,true,surprising,wonderful,possible,likely,certain)+that从句(2)It+be+过去分词(said,reported,thought,expected,decided,announced,

suggested等)+that从句(3)It+be+名词词组(apity,ashame,goodnews,anhonor,

nowonder等)+that从句(4)It+动词/动词短语(seem,appear,happen,matter,turnout,occurto等)+that从句131.Itisnecessarythatwe(should)

havebreakfast.2.Itwassuggested

thatwe

(should)putoffthemeeting.◆Itisnecessary/important/strange/natural等+that(should)

do◆Itissuggested/requested/desired/ordered等+that

(should)do接虚拟语气的主语从句:It作形式主语常见形式1.很明显他输掉了比赛。2.据说学校下周讲举行运动会。3.能被邀请在这做演讲是一件荣幸的事。4.碰巧我昨天在路上碰到了我的班主任（ithappensthat...)Itisobviousthathelostthegame.Itissaidthattherewillbeasportsmeetinginourschool.ItisanhonorthatIaminvitedtogiveaspeechhere.IthappenedthatIcameacrossmyheadteacheryesterday.【即学即练】Part3主语从句注意事项16主谓一致原则1.WhereLiBai,agreatChinesepoet,wasborn_____(be)knowntopublic,butsomewon’tacceptit.(2015江苏卷)2.Whenthepersonwasmurderedandwhyhewasmurdered_____(be)stillunknownnow..3.It_____(be)stillnotexactlysuretoscientistshowgenesinfluenceaging,buttheybelievethattheydo.(2016四川卷)4.Whatheneeds_____(be)somebooks.5.Ifirsthavetoremovealltherottenparts,andsometimes,whatisleft____(be)notenoughformydesign.(2020河南天一大联考)isareareisisRule2:forms+主句谓语verb单个主从多个主从并列It作形式主语What引导主从单数复数单数表/宾语决定17语序原则1.HowmuchdidIpayfortheviolinisasecret.2.HowmuchIpaidfortheviolinisasecret.3.Itisn’tclearwhetherhewillcomeornot.4.Itisn’tclearwhetherwillhecomeornot.5.Wherewewillhaveapicnicshouldbediscussed.6.Wherewillwehaveapicnicshouldbediscussed.7.Howwegoforapicnicshouldbediscussed.8.Howdowegoforapicnicshouldbediscussed.√√××√√××主语从句的从句部分要用______语序

17陈述句what与that在引导主语从句时的区别1)_______yousaidyesterdayisright.2)_______sheisstillaliveisexciting.3)_______helostthebikeworriedhimalot.4)_______helostyesterdayishisbike.WhatThatThatWhatwhat既引导从句，又在从句中充当主语、宾语或表语，而that只引导从句，不在从句中充当成分。19主语从句和强调句的区分1.It

is

believedthatbeautycomesfromwithin.(2015北京卷)2.Itwasthetimesthatproducetheirheroes.3.Itwas

whenwewerereturninghomethatIrealizedwhatagoodfeelingitwastohavehelpedsomeoneintrouble.(2015湖南卷)4.Itisoftenthecasethatanythingispossibleforthosewhohangontohope.(2016江苏卷)主语从句强调句紧紧抓住强强强强强强强强强调句主语从句判断方法：去掉Itis/was…that之后，若句子结构仍然完整，则为强调句，itis…that中间的部分为被强调的部分；句子结构混乱不完整，则it为形式主语，真正的主语是由that引导的从句。Summary在句子中充当主语成分的从句叫做主语从句。主语从句的位置：①在谓语动词之前②在句末，前有形式宾语it主语从句的连接词：连接代词who,what,which,whom,whose连接副词when,where,how,why从属连词that,whether,if

Part4巩固练习Practice1.It

is

obvious

to

the

students__________they

should

get

well

prepared

for

the

future.2.__________surprised

him

most

was

that

he

had

received

many

gifts.3.We

all

think

highly

of

your

plan,

but

it

is

still

under

discussion__________we

should

carry

it

out

right

now.4.__________