高三年级英语语法知识点VIP免费

下载后可任意编辑高三年级英语语法知识点高三年级英语语法知识点1.定义：用作主语的从句叫做主语从句。2.构成：关联词+简单句3.引导主语从句的关联词有三类：(1)从属连词that。如：Thattheywereintruthsisterswasclearfromthefacialresemblancebetweenthem.很明显，她们确是亲姐妹，她们的脸型很相似。(2)从属连词whether。如：Whetherhe’llcomehereisn’tclear.他是否会来这里还不清楚。(3)连接代词who,whom,whose,what,which,whoever,whatever,whichever连接副词where,when,how,why。如：Whatshedidisnotyetknown.她干了什么尚不清楚。Howthishappenedisnotcleartoanyone.这事怎样发生的，谁也不清楚。Whoevercomesiswelcome.不论谁来都欢迎。Whereveryouareismyhome----myonlyhome.你所在的任下载后可任意编辑何地方就是我的家----我的家。解释：1.主语从句能用it作形式上的主语。常以it作形式主语的句型有：A.It+be+形容词(obvious,true,natural,surprising,good,wonderful,funny,possible,likely,certain,probable,etc.)+that从句如：Itiscertainthatshewilldowellinherexam.毫无疑问她考试成绩会很好。Itisprobablethathetoldhereverything.很可能他把一切都告诉她了。B.It+be+名词词组(nowonder,anhonour,agoodthing,apity,nosurprise,etc.)+that从句。如：It’sapitythatwecan’tgo.很遗憾我们不能去。It’snosurprisethatourteamshouldhavewonthegame.我们没赢这场竞赛真意外。C.It+be+过去分词(said,reported,thought,expected,decided,announced,arranged,etc.)+that从句。如：ItissaidthatMr.GreenhasarrivedinBeijing.据说格下载后可任意编辑林先生已经到了北京。ItisreportedthatChinahassentanotherman-madeearthsatelliteintoorbit.据报道中国又成功地发射了一颗人造地球卫星。D.It+seem,happen等不及物动词及短语+that从句。如：ItseemsthatAliceisnotcomingtothepartyatall.Alice似乎不来参加晚会。IthappenedthatIwasoutthatday.碰巧我那天外出了。E.It+doesn’tmatter(makesnodifference,etc.)+连接代词或连接副词引起的主语从句。如：Itdoesn’tmatterwhethershewillcomeornot.她是否来这无关紧要。Itmakesnodifferencewhereweshallhavethemeeting.我们在哪里开会毫无区别。F.当that引导的主语从句出现在疑问句中时，要以it作形式主语，而把主语从句后置。如：Isittruethatthescientistwillgiveusalecturenextweek?下周那位科学家将给我们作报告是真的吗?Doesitmattermuchthattheywillnotcometomorrow?他们明天不来很要紧吗?G.当主语从句出现在感叹句中时，要以it作形式主语，而把主语从句后置。如：下载后可任意编辑Howstrangeitisthatthechildrenaresoquiet!孩子们这么宁静真奇怪!2.注意连接代词whoever,whatever,whichever等引导主语从句的含义Whoevercomeswillbewelcome.(whoever=thepersonwho)来的人将受到欢迎。Whateverhedidwasright.(whatever=thethingthat)他所做的事情是正确的。Whicheverofyoucomesinwillreceiveaprize.(whichever=anyoneofyouwho)你们当中不论哪个进来将会得到奖高三年级英语语法知识点underage未成年，未达到规定年龄Hewasrejectedbythearmybecausehewasunderage.他因尚未成年而被拒绝参军。Youshouldn’tsellcigarettestoteenagerswhoareunderage.你不应该把香烟卖给没未成年的青少年。underarrest被捕Youareunderarrestinthenameofthelaw.你被依法逮捕了。Hewassoonput[placed]underarrest.他不久就被逮捕了。下载后可任意编辑underattack遭受攻击Thecompanyhascomeunderfierceattackforitsdecisiontoclosethefactory.因为决定要关闭工厂，公司受到猛烈攻击。underconsideration在考虑中;在讨论中Thequestionisnowunderconsideration.这个问题正在考虑中。TheplanisunderconsiderationbytheMinistryofEducation.教育部正在讨论这个方案。underconstruction在建造中Thenewrailwayisunderconstruction.新铁路正在修建当中。Thebridgeisunderconstruction.这座桥正在建造中。Therearetwonewhotelsnearhereunderconstruction.附...