作业帮Dentists always ask question when it is impossible for you to answer.1.在这个it is impossible for you to answer的结构中的answe是不需要接宾语的,因为他的宾语就是前面的it2.这和it is difficult for us to learn English 是不
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Dentists always ask question when it is impossible for you to answer.1.在这个it is impossible for you to answer的结构中的answe是不需要接宾语的,因为他的宾语就是前面的it2.这和it is difficult for us to learn English 是不
Dentists always ask question when it is impossible for you to answer.
1.在这个it is impossible for you to answer的结构中的answe是不需要接宾语的,因为他的宾语就是前面的it
2.这和it is difficult for us to learn English 是不同的,这里的it 只是一个形式主语
请问上述的俩点是怎么看出来的?为什么一个是宾语,一个是形式主语?
Dentists always ask question when it is impossible for you to answer.1.在这个it is impossible for you to answer的结构中的answe是不需要接宾语的,因为他的宾语就是前面的it2.这和it is difficult for us to learn English 是不
如果这个it是形式主语,那真正的主语是动词不定式to answer it.,必须加上第二个it,因为answer是及物动词,后面必须跟上宾语,answer the question ,对吧?所以如果句子中it是形式主语,那这个句子应该是Dentists always ask question when it is impossible for you to answer it.
1， 第一句中it用作实义代词，指代前面的question
it可以代替天气、日期、时间、季节、距离等。
It's getting colder and colder.
It's October the twenty-third today.
It's seven minutes past ten in the morning.
It's spring. W...
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1， 第一句中it用作实义代词，指代前面的question
it可以代替天气、日期、时间、季节、距离等。
It's getting colder and colder.
It's October the twenty-third today.
It's seven minutes past ten in the morning.
It's spring. We can see leaves turning green.
It was winter. It was snowing hard.
2。it 用作形式主语，代替不定式、动名词和从句。
It takes time to learn something well.要学好东西需要时间。（形式主语，代替不定式）
It is no use learning without thinking.光学习不思考 是没有用的。（形式主语，代替动名词）
It is a pity that you didn't see the football game last night.可惜你没有看到昨晚那场足球赛。（形式主语，代替从句）
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