it做形式宾语的用法.ppt

1.It 用作形式宾语 当不定式（短语）、动名词（短语）或从句在句子中作宾语时，为保持平衡，避免句式结构的混乱，常用it作形式宾语，而将真正的宾语放在句尾。此时it只起引导作用，无意义。 完成句子 （1） They ________________（发觉……难）? to finish their work in two days. （2） We ________________（认为……是我们的职责） to clean our classroom every day. （3） It is important _______（对她来说） to come?to the party. 1.The fact that she was foreign made ____difficult for her to get a job in that country . A. So B. much C. that D. it 2. The doctor thought ____would be good for me to have a holiday . A. this B .that C . one D . It 3. I don’t think _______ possible to master a foreign language without much memory work. A. this B. that C. its D. it 4.It 作形式宾语的特殊用法 1. 某些表示“喜、怒、哀、乐”的动词，如like, enjoy, love, hate, dislike, appreciate等 后往往不能直接接宾语从句；必须先由it担任形式宾语,再接从句. 2.某些含有介词的动词短语如see to, depend on, answer for, rely on, insist on, look to, stick to 等结构中往往不能直接接宾语从句；必须先由it担任形式宾语,再接从句. I like _______ in the autumn when the weather is clear and bright. A. this B. that C. it D. one 2. I hate __when people talk with their mouths full. A. it B. that C. these D. them * * * * * * * * The use of “it” as?a form of an object He found it difficult to stop smoking. I think it best that you should do more exercise. She thought it no good worrying about him. It作形式宾语 代替不定式短语,从句或动词-ing。 S + v + it+ adj. n (for sb) to do sth.. 从句 doing sth + … … find possible S+ think + it + necessary +( for sb. ) to do sth./that-clause feel important … … Sentence patterns: 形式宾语 … a rule 2. S+ V + it + one’s duty + ( for sb. ) to do sth. /that-clause an honour … 3. S + V + it + no good + doing sth. no use found it difficult think it our duty for he