英语：unit4sectionlearningaboutlanguage精品课件（新人教版必修3）.ppt

Section Ⅱ Learning about Language; As a result of this event, a great dust cloud formed in the sky blocking out the sunlight.因为这一事件，一大团尘埃在空中 形成，挡住了阳光。 1．block out 挡住(光线) 典例 That wall blocks out all the light.那堵墙把光线都遮住了。;that a comet crashed into the earth long ago and caused;主语从句;一、由连接代词和连接副词引导的主语从句;注意：what 引导主语从句时，主句谓语动词与表语保持数;二、由从属连词引导的主语从句;三、it 作形式主语代替主语从句的情况;2．It＋be＋过去分词＋that 从句 It is believed that... 人们相信……;4．It＋不及物动词＋that 从句; 一、用适当的引导词填空 1._______ you dont like him is none of my business. 2._______ he said at the meeting astonished everybody present. 3._______ the earth is becoming warm has different answers in different groups. 4.____________ well go camping tomorrow depends on the weather.; Whoever;4.________________ (我们如何去那里) is a question. 5.__________________________ (你刚才告诉我的) is really ;6._________________________ (他什么时候出国) is being