1、新知识预习探索名词性从句语法精讲.主语名词性从句在句子中起名词作用的句子叫名词性从句。它在复合句中能充当主语、宾语、介词宾语、表语、同位语等，因此根据它在句中不同的语法功能，名词性从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。【语境领悟】Whether hell come here isnt clear.他来不来这里不清楚。It is certain that we will be late.很显然，我们要迟到了。It is said that he had been to Beijing twice.据说他已经去过北京两次了。I think it necessary that w
2、e take plenty of boiled water every day.我认为每天喝开水是有必要的。The fact that some countries are still suffering from poverty is really a great problem to the world.有一些国家仍然贫困对世界来说真是一个大问题。Grandma pointed to the hospital and said,“Thats where I was born.”奶奶指着那所医院说：“那就是我出生的地方”。The problem is who he is.问题是他是谁。【知识
3、归纳】名词性从句的连词引导名词性从句的连接词可分为三类：从属连词：that，whether，if(用于宾语从句)；as if(用于表语从句)连接代词：what，whatever，who，whoever，whom，whose，which连接副词：when，where，how，why现将它们的意义、作用和功能比较如下：类别作用与意义句法功能that仅起连接作用，无任何词义在从句中不充当任何句子成分，一般不能省略，除了宾语从句外。if/whether起连接作用，意为“是否”，表明从句内容的不确定性。在从句中不充当任何句子成分，不能省略。连接代词：who，whom，whomever，whose,wha
4、t,which，whatever，whoever有其自身的词义充当从句的主语、宾语、表语等。连接副词：when，where，how，why有其自身的词义充当从句的状语。【语境领悟】That she was chosen made us very happy.她被选上了，我们很高兴。We heard the news that our team had won.我们听到消息说我们队赢了。【深化点拨】whether与if比较，只有whether的情况1引导宾语从句。whether/if都可引导动词后的宾语从句，常可以互换。但以下几种情况下，只能用whether：后面直接跟or not时：We di
5、dnt know whether or not she was ready.在介词之后：Im interested in whether youve finished the work.用if会引起歧义时：Please let me know whether you want to go.(如换成if则既可看作条件状语从句又可看作宾语从句)2(1)引导表语从句、同位语从句和让步状语从句时；(2)引导主语从句置于句首时；(3)后接动词不定式时；(4)作discuss 的宾语时。【语境领悟】Whether he will go there or not is not clear.(主语从句)他是否
6、会去那儿还不清楚。Can you tell me whether to go or to stay.(接不定式)你能告诉我是走还是留下来吗？Lets discuss whether Mary is fit for the position.(作discuss 的宾语)我们讨论一下玛丽是否适合这个岗位吧。新思维随堂自测.翻译句子1The scientist explained to us that the force of gravity would change three times on our journey._2What scientists think is that the Ear
7、th became different because of small plants growing in the water on its surface._3It is obvious to the students that they should get well prepared for their future._科学家向我们解释，在我们的航行中会有三次引力的改变。科学家们相信，由于微小的植物生长在地球表面的水里，所以地球变得不同。对学生来讲很明显的一点是他们应该为将来做好准备。4The last time we had great fun was when we were vi
8、siting the Water Park._5I have no impression how he went home,perhaps by bike._6我听到他被一所重点大学录取的消息。_上一次我们玩得很高兴是在我们参观水上公园的时候。他是怎样回家的，我没有印象，也许是骑自行车。I have heard the news that he was admitted into a key university.7这个消息是他被一所重点大学录取了。_8你听说他被一所重点大学录取了吗？_9据说他被一所重点大学录取了。_The news was that he was admitted into
9、 a key university.Have you heard that he was admitted into a key university?It is said that he was admitted into a key university.用合适的连词完成句子1A ship in harbor is safe,but thats not _ ships are built for.港口里的船是安全的，但是这不是建造船的目的。2I wonder_ Mary has kept her figure after all these years.我想知道玛丽这些年是如何保持她的身材
10、的。3.The exhibition tells us _ we should do something to stop air pollution.这个展览告诉我们为什么我们要采取措施来制止空气污染。4I truly believe_ beauty comes from within.我很相信美丽来自于内心。whathowwhythat5_ Li Bai,a great Chinese poet,was born is known to the public,but some wont accept it.中国伟大诗人李白的出生地大家都知道，但是一些人不接受。6_ we understand things has a lot to do with what we feel.我们如何理解事情与我们的感受有很大关系。7Reading her biography,I was lost in admiration for _ Doris Lessing had achieved in literature.读了多丽丝莱辛的传记，我非常钦佩她在文学上取得的成就。Where How what