*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,Unit4 Grammar 名词性从句之主语从句,Ma Dan dan,2023-4-15,1,标,展,示,目,2,1.了解并把握主语从句的相关概念,2.完成与主语从句相关的练习,3.重点：It 做形式主语的各种句式及虚拟语气的使用。,4.难点：引导主语从句的连接词的使用。,目标展示,3,身,导,入,热,4,找出以下各句的相像之处,What he did is surprising.,2.That we go swimming every day does us a lot of good.,3.When we”ll finish translating the book depends on the time.,4.Whoever makes mistakes must correct them.,热身导入,5,主,学,习,自,主,6,Turn to page 53 in your workbook and see note 1，2.,学习任务：,1.了解主语从句的定义,2.把握引导主语从句的连接词的用法。,自主学习,7,定义：,用作主语的从句叫主语从句，它是名词性从句之一。,引导主语从句的连接词,有：,连词,that,whether；,连接代词,who,what,和,which；,连接副词,when,where,how,和,why.,自主学习,8,Continue to look at note 3.,1.连词that，whether在主语从句中做成分吗？,2.连词if 能引导主语从句吗？,3.,连接代词who,what和which在主语从句中能做什么成分？,4.,连接副词,when,where,how和why,在主语从句中能做什么成分？,自主学习,9,if可以引导主语从句,但不能用于句首,而应当放在句尾,用it做形式主语.,“whether“与“If“做“是否”讲引导名词从句,区分如下:If,1.不能用在句首,2.不能引导主,表,同从句,3.可以引导宾语从句,但不用在介词之后,自主学习,学问小结,10,连接代词，也称疑问代词。一共九个,包括：,who,whom,whose,what,which,whoever,whomever,whatever，whichever,代词相当于名词，因此，连接代词在主语从句中可做主宾表同。,自主学习,学问小结,11,作,探,究,合,12,1.他们是否卖掉这所房子还没有打算。,_they will sell the house is not yet decided.,这里能用if代替whether吗？为什么？,if可以引导主语从句,但不能用于句首,而应,放在句尾,用it做形式主语.,汉译英,合作探究,13,2.但凡这里说的话都应当保密。,_ was said here must be kept secret.,3.凡犯了错误的人都必需改正。,_ makes mistakes must correct them.,问题：,1.whenever/wherever能引导主语从句吗？,合作探究,14,4.教师今日说的话是特别正确的。,_the teacher said today was quite right.,5.他们急需帮助，这是特别明显的。,_ they are badly in need of help is quite clear.,汉译英,合作探究,15,引导主语从句时，什么状况下用that，什么状况下用what？,小提示：,由连词that引起的主语从句,这类句子在大多数状况下会放到整个句子的后部去，而用代词it作形式主语。,合作探究,16,主,学,习,自,主,17,Continue to look at note 4,1)It is+adj./n.+从句,It is a pity/shame that.圆满的是,It is possible that.很可能,It is unlikely that.不行能,2)It+不及物动词+从句,It seems/appears that.似乎,It happened that.碰巧,自主学习,18,3)It+be+过去分词+从句,It is said that.据说,It is known to all that.,众所周知,It is reported that.据报道,It is believed that.,据信;人们信任,It is suggested that.有人建议,自主学习,19,Continue to look at 5,特殊强调:用于It is+important/natural/necessary/impossible/或表示建议要求命令的词的过去分词+that.句型中,主语从句应使用虚拟语气,谓语动词用“should+动词原形”的形式。,自主学习,20,馈,练,习,反,21,1._ he said at the meeting astonished everybody present.,2._ the 2023 Olympic Games will be held in Beijing is not known yet.,3._ well go camping tomorrow depends on the weather.,4._ leaves the room last ought to turn off the lights.,What,Whether,Whether,Whoever,反馈练习,22,6._ is a fact that English is being accepted as an international language.,7.It worried her a bit _ her hair was turning grey.,8.The Foreign Minister said,“_ is our hope that the two sides will work towards peace.”9.After Yang Liwei succeeded in circling the earth,_ our,astronauts,desire to do is walking in space.,It,that,It,what,反馈练习,23,击,高,考,直,24,1.The other day,my brother drove his car down the street at _ I thought was a dangerous speed.(2023 上海 春 38),A.as B.which C.what D.that,解析:I thought 是插入语,可以把它去掉不考虑.what 引导宾语从句,在从句中作主语.宾语从句作at的宾语.,直击高考,25,2._ in the regulations that you should not tell other people the password of your email account.2023 上海-38,A.What is required B.What requires C.It is required D.It requires,解析:“It is required that”是一个固定句式，it作形式主语,that引导的从句为真正的主语。,直击高考,26,3._ the 2023 Olympic Games will be held in Beijing is not known yet.高考真题,A.Whenever B.If C.Whether D.That,答案是C。“2023年奥林匹克运动会是否在北京进展还不知道。”,直击高考,27,4._ he said at the meeting astonished everybody,present,.高考真题,A.What B.That C.Which D.Whether,答案是A。“他在会上的发言使到会的每一个人都感到惊异”what 表示“(所说的话)”,相当于The words(that+/which)he said at the meeting,直击高考,28,5._ he has become a rich man,is known to all,in our town.高考真题,A.Because B.That C./D.What,答案是B。“他变成了富翁,这是我们镇上下班人人皆知的事。”依据句意,须用that 引导的主语从句。that 在从句中不担当任何成分,只起连接作用.,That引导主语从句的时候不行省略。,直击高考,29,堂,小,结,noodles,课,30,Sum up the key points by yourselves.,课堂小结,31,置,作,业,布,32,Homework,1.Find out as many subject clause as possible in your text book.,2.Finish all the exercise in your work book.,布置作业,33,