这是一种固定句型： To do sth /Doing sth is ...= It is ... to do sth. 用it作形式主语代替动作短语，是为了保持句子平衡。而动词开头时，既可以用ing形式，也可以用不定式
学习是一件愉快的事！ (*^__^*)
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动词不定式做主语时形式主语是什么
通俗地说，在口语中，形式主语是用it放在句首代替当主语的动词不定式，以避免头重脚轻，失去平衡：It is difficult to answer this question. 这是个很难回答的问题。=To answer your question is difficult.动词不定式的逻辑主语是执行这个不定式动作的人：It is difficult for me to answer this ques...
It is difficult to answer the question这句对吗??
It is difficult to answer the question 意思是"回答这个问题很困难",可能是问题本身困难,也可能是别的原因使问题难回答(如当事人不便回答).这是一个"it's"强调句型,强调difficult.正常语序是:to(I) answer the question is difficult.difficult在这里做表语.It is a difficult question to answer....
This question is very difficult to answer改为同义句
It's very difficult to answer this question.
...answer 同义句 I--- --- difficult to answer this question...
find it 我发现学英语很难it是形式宾语，to answer the question是真正宾语。
This question is very difficult to answer改为同义句
原句：This question is very difficult to answer.同义句：It's very difficult to answer this question.It's very difficult for us to answer this question.This question is too diffcult to answer.This question is so difficult that we can't answer it....
It is very difficult to answer the question这句话对不对
对的 回答这个题是非常困难的.希望能帮到你。我等着你采纳哟，不明还可以追问的，嘻嘻！
It is ___ to answer why so many people want to learn English.A.h...
【答案】：A 解析：从第二段第一行可推断出：很难回答为什么有这么多的人要学英语这个问题。
this question is too ___(hardly);I can't answer it.
hard 这个问题太难了我不能够回答它。hardly是副词，“几乎不”hard是形容词“困难的”，所以根据题意选“hard”。
It is ___ hard ___ me ___ ___ this question.
(too) hard (for) me (to) (answer) this question.这问题对于我太难了 去回答 第二种：It is (not) hard (for) me (to) (answer) this question.这问题对于我不难了 去回答 第三种：It is (enough) hard (for) me (to) (answer) this question. 这问题对于我足够难了 去回答 ...
it is difficult改为同义句
It is too difficult to finish all my homework in the evening
