高三英语一轮复习【知识精讲+拓展提升+迁移训练】主语从句课件

语法专题课程第

2

讲Janeisgoodatplayingthepiano.Shewentoutinahurry.Toseeistobelieve.Smokingisbadforhealth.Whathehassaidistrue.Itissaidthattheyhavebrokenup.名词代词不定式动名词从句it主语是句子说明的人或事物，一般放在在句子中充当主语的从句就是主语从句，通常放在主句

之前或由

代替，而本身放在

。3.主语从句结构：

或

总结：句首谓语动词形式主语it句尾引导词＋句子形式主语＋谓语＋引导词＋句子主语从句的语序

主语从句的连接词主谓一致形式主语结构Whethershewillpasstheexamisuncertain.

总结：主语从句的语序为

_________，whether可以引导主语从句，放在句首，但if不能。陈述句语序Thathewillpasstheexamiscertain.总结：that

在从句中无实际意义，但不能省略。Thatwhethershewillpasstheexamisnotimportant.总结：从句中连词不能重叠使用。Whatheneedsismoremoney.Whatsheneedsaremoreclothes.What引导的主语从句，由表语决定谓语动词的单复数形式。Thattheearthmovesaroundthesunisknowntoall.Itisknowntoallthat主语从句为了避免头重脚轻的现象，用it做形式主语。形式主语常用句型

Itbe+名词

＋that从句Itisapitythat…很遗憾…Itisafactthat…事实是…

Itbe+过去分词

＋that从句Itissaidthat…据说…Itisknownthat…众所周知…

Itbe+形容词

＋that从句Itisobviousthat…显然…Itisimportantthat…重要的是…我们雨天要穿雨靴是常识。Itiscommonknowledgethatwewearrainshoesonrainydays.我最喜欢的是他的发型。WhatIlikemostishishairstyle.是否它是我的双胞胎兄弟仍然是个问题。Whetherheismytwinbrotherremainsamystery.Whatlimitsmyimaginationispoverty.Whatdrivesthedevelopmentofsocietyarelipsticks.WhyIamsodarkistoprotectyouinsecret.Whatmadetheteacherangryisthathealwaysmakeanexcuseforhisnotfinishinghomework.Whetherwomenarehappydependsonwhethertheyboughtwhattheywant.WhyIhavetroublelosingweightisthatIhavetoomuchinmymind.做点练习抖擞一下精神！！！Itdidn’tmatterthatIwouldwinthe

matchornot.Thatheislookingforisadictionary.Manypeoplecanquicklygethelpfromadoctorsincetheyareill.Ifyoucanpassthetestisuptoyou.

whetherWhatif/whenWhether5.Ifwewillholdthepartyintheopenairdepends

ontheweather.6.IliveinBeijing,wherehasalonghistory.7.Westilldon’tknowifornottheyhavearrivedat

Shanghaibyplane.8.Itisthetallesttowerwhichcanbeseenfaraway.Whetherwhichwhetherthat9.Thepersonaboutwhowejusttalkedismymaths

teacher.10.Yesterdaywewerehavingourdinnerwhilethe

telephonerang.11.But,therearestillsomecountrieswherepeople

havenotenoughtofeedon.12.Itissaid,hehasleftforGermany.whomwhenHoweverAs13.Idoubtthatheisaspy.14.Idon’tdoubtwhetheryouhavetoldthetruth.15.Hehasnomoneyandhehasmuchknowledge.whetherthatbut主语从句在写作中的运用众所周知，去年12月8号九寨沟发生了严重的地震。Itiswellknownthat…Asweallknow,…Whatisknowntousallisthat

…ItiswellknownthatabigearthquakestruckJiuzhaigouon8thDecemberlastyear.地震发生的原因是大陆运动。TsunamihitsJiuzhaigouThereasonwhy…isthat...Thereasonwhyithappenedisthatthecontinentsaremoving.最使我吃惊的是很多景点沦为了废墟。What…mostisthat...Whatsurprisedmemostwasthatalargenumberofscenicspotslayinruins.Conclusion1.定义：在句中充当主语的从句叫做主语从句2.关联词：that,which,whether,if,who,whom,

whose,whoever,whomever,whatever,

when,where,why,how…原则：____________________________“缺什么补什么

”缺什么补什么原则缺主语，指人，用who;指物用what缺宾语，指人，用who／whom;指物用what缺状语，用when,where,why,how缺定语，用what／which什么都不缺用that或whether（是否