9B U1语法 it的用法(上课用).ppt

;;;;3. 表示时间，日期，天气， 距离，温度等。;the Summer Palace 2. the lake 3. the lake 4. We could not row a boat there. 5. the 17-hole bridge The lions are all different from each other. 7. The person who called me.;有时并不指具体的东西，可指天气、时间、距离、日期等。;It is 22 February today. 2. It is 1,300kilometres 3. It was 5 a.m. 4. It was only 2℃. 5. it is very cold and dry in Beijing. It was a sunny day. It was at noon. It is not far ;;2.?one代替前面提到的同类事物中的一个。（单数、同类、不特指）该事物只能是可数名词,前面可以有冠词,也可以被this、that或形容词修饰,其后也可以有定语。? ;3.?that代替前面提到的同类事物中特指的一个。(those同理，指复数) 该事物既可以是可数名词也可以是不可数名词. I think the weather here in China is hotter than ______in America.? A.?some　B.?any C.?that D.?those? ;二，形式it---- it在句子中做 形式主语， 形式宾语;1. It is necessary to devote lots of time to studying. 2. It is known to everybody that the moon travels round the earth once every month.;1. It is + adj ( for/of sb. ) + to do sth.  important， necessary， natural ， impossible ， unusual ， easy ， hard ， difficult ， dangerous ， wise， silly， stupid，patient，impatient， careful,??crazy， bad ， lazy ， rude 等。 ;2. It is clear ( important， true， possible， certain....) that ..... 　 It’s + adj + that从句  很明显他高得像棵树。 It is very clear that he is tall like a tree. ;;形式宾语;The chairman thought ___ necessary to invite Mr. Obama to visit Peking. A. that B. it C. this D. him 我发现对我们来说独立完成这个任务很困难。 I find it hard for us to finish this task by ourselves. ;We think it our duty to clean our classroom every day. 　  He felt it important learning English well. 　  They found it difficult that they would finish their work in two days. ;it is easy 2. It is sunny; 3 it 4. It is said 5. It is fun 6. it 7.it comfortable 8.It is kind ;类似结构： 3. It is said (reported， learned， ?thought,?believed,? known hoped,?expected,?agreed,?accepted,?decided,?)? that ...  常译为“据说（据报道，据悉．．．）。 　　  据说明年我们城市将有一座桥被新建。 It is said that another bridge will be built next year in our city. ;补充：4. It is suggested ( or