题目内容
3．Li Lei realized __________ necessary for him to get up early to do some exercise for he found he was getting fatter and fatter．（ ）| A． | it | B． | that | C． | one | D． | this |
分析 李雷意识到对他来说早起锻炼很有必要，因为他发现自己正在变胖．
解答 答案：A
it作形式宾语，真正的宾语是不定式短语to get up early to do some exercise，一般说来，当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时，就应在宾语补足语前使用形式宾语，而将真正的宾语移至句末．所以 it 用作形式宾语的基本句型是：动词+形式宾语+宾语补足语+真正的宾语．故选A．
点评 本题考查形容宾语it的用法，先了解其用法及结构，再找到它所代替的真正的宾语．
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