主语从句详解+试题+答案

从句的语序永远是陈述句!一、主语从句主语从句通常由连词that和whether、what连接代词或连接副词引导。1.what引导What’sdoneisdone.Whathesaysisnotimportant.事已成定局2.that引导Thatheisstillaliveisawonder.Thatweshallbelateiscertain.Thatshebecameanartistmayhavebeenduetoherfather’sinfluence.他还活着，真是奇迹。我们要晚了，这是确定无疑的。她成为画家可能是受她父亲的影响。3.whether引导Whetheritwilldousharmremainstobeseen.Whethertheywouldsupportuswasaproblem.是否对我们有害还要看一看4.连接副词引导Whenwearrivedoesn’tmatter.Howmanypeoplewearetoinviteisstillaquestion.WhereIspendmysummerisnobusinessofyours.什么时候到没有关系。我在哪里过暑假不关你事。二、形式主语有时为了考虑句子平衡，避免句子头重脚轻，通常在主语从句处使用形式主语it，而将真正的主语从句移至句末。It’sapitythathedidn’tcome.Itisimportantthatheshouldknowaboutthis.It’svitalthatwebepresent.Itisessentialthatameetingbeconvenedthisweek.Itwasaproblemwhethertheywouldsupportus.很遗憾他没来。我们出席是至关重要的。本周开一次会非常重要。☆如果句子是疑问句，则必须用带形式主语it的结构：Isittruethatheisthegirl’sfather?他是那女孩的父亲，是真的吗？Howisitthatyouarelateagain?你怎么又迟到了？☆形式主语的THAT可以省略哦1.we’llgocampingtomorrowdependsontheweather.A.IfB.WhetherC.ThatD.Where2.hesaidatthemeetingsurprisedeverybodypresent.A.WhatB.ThatC.ThefactD.Thematter3.wastoreturntoschool.A.ThatreallyinterestedhimB.WhatreallyinterestedhimC.WhichreallyinterestedhimD.Thatinteresthimreally4.makesmistakesmustcorrectthem.A.WhatB.ThatC.WhoeverD.Whatever5._______hemadeanimportantspeechatthemeetingwastrue.A.ThatB.WhyC.WhatD.How6.WhatIsayandthink___noneofyourbusiness.A.isB.areC.hasDhave7.Does_______matterifhecan'tfinishthejobontime?A.thisB.thatC.heD.it8._______isafactthatEnglishisbeingacceptedasaninternationallanguage.A.ThereB.ThisC.ThatD.It9._______whattheytoldmereallytrue?A.HasB.IsC.DoesD.Have9.Itisprettywellunderstood_______controlstheflowofcarbondioxideinandouttheatmospheretoday.A.thatB.whenC.whatD.how10._______fashiondiffersfromcountrytocountrymayreflecttheculturaldifferencesfromoneaspect.A.WhatB.ThatC.ThisD.Which11.Itisnecessarythatacollegestudent_______atleastaforeignlanguage.A.mastersB.shouldmasterC.masteredD.willmaster