Period4主语从句.ppt

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,*,Period 4 grammar,Revision,His books _ open on the desk when I went in.,向某人解释某事,迫使某人做某事,靠近；接近,感到高兴,/,振奋,爆发,在阴凉处,给某人拍照,既然；由于,向前走,掉到地上,12.,许多，大量,13.,熟悉,掌握,理解,explain,sth,.to,sb,.,force,sb,.to do,sth,.,get/be close to,cheer up;cheer,sb,.up,break out,in the shade,take photos of,sb,.,now that,step forward,fall to the ground,masses of,get the hang of,1.Ice is in a _ state.,2.Our earth is a _.,3.He stepped into the _ of the moon.,4.Flies _ diseases.,5.He observed stars through a _.,6.Wood can _ on water.,7.Water is a compound of _ and hydrogen.,8.Her new novel will be _ next month.,9.He invented a new _ of teaching English.,10.Your _ is requested at the meeting.,A tree has fallen across the road.,You are a student.,To find your way can be a problem.,Smoking is bad for you.,What she said is not yet known.,That we shall be late is certain.,It is certain that we shall be late.,主语从句（,Noun Clauses as the Subject,）,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,用法：,1),由,what,等代词引导的主语从句：,老师今天说的话是十分正确的What,the teacher said today was quite right.,2),由连词,that,引导的主语从句：,他们急需帮助，这是十分明显的That,they are badly in need of help is quite clear.,=It is quite clear that they are badly in need of help.,真遗憾他犯了如此愚蠢的错误,.,It is a pity that he made such a foolish mistake.,3),由,whether,引导的主语从句他们是否卖掉这所房子还没有决定Whether they will sell the house is not yet decided.,他是否要来还不知道,.,Whether he will come or not is not known.,4),由连接代词或连接副词引导的主语从句。

我们所需的是更多的时间,.,What we need is more time.,他什么时候动身去美国还未决定,.,When he will leave for the USA is not yet decided.,还不清楚他为什么没有通过物理考试,.,Why he failed the physics exam wasnt clear.,5)whatever,whoever,引导主语从句这里说的话都应当保密Whatever was said here must be kept secret.,凡犯了错误的人都必须改正Whoever makes mistakes must correct them.,注意,:,上述例句中的主语从句都是放在句首,但有时为了使句子结构平衡,避免,“,头重脚轻,”,常用,it,作形式主语,而把从句放在后面这样就构成了下面一些常用句型,:,1)It is+adj./n.+,从句,It is a pity/shame that.,遗憾的是,It is possible that.,很可能,It is unlikely that.,不可能,2)It+,不及物动词,+,从句,It seems/appears that.,似乎,It happened that.,碰巧,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,;,人们相信,It is suggested that.,有人建议,It must be pointed out that.,必须指出,It has been proved that.,已证明,.,1._ you dont like him is none of my business.,2._ he said at the meeting astonished everybody present.,3._ the 2000 Olympic Games will be held in Beijing is not known yet.,4._ well go camping tomorrow depends on the weather.,5._ leaves the room last ought to turn off the lights.,That,What,Whether,Whether,Whoever,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,1._ you need is more rest.,2._will go makes no difference.,3._kind of food is best is still not certain.,4._she was absent from class is unknown.,5._leaves last should lock the door.,6._ well go for an outing or not depends on the weather.,7._ and where well hold the meeting has not been decided yet.,8._ shell spend this weekend is unknown.,9.It is necessary _ we should hold a class meeting this week.,10._ he finished the work alone in two hours is,inknown,to us.,What,Who,Which,Why,Whoever,Whether,When,Where,that,How,Now that we have finished the design,the company,in its turn,will do the construction.,The fire did not cause too much damage,because the firefighters arrived in time.,The spaceship was pulled close to the satellite by its strong,gravity.,5).,用于,It is important/natural/necessary/impossible 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,should,有时有感情色彩。