Question

观察下列句子，归纳出画线部分的句型结构。

1．This special strain of rice makes it possible to produce one-third more of the crop in the same fields．

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2．Using his hybrid rice farmers are producing harvest twice as large as before．

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Answer 1

答案：
解析：

　　1．make it＋adj．＋to do…“使做某事成为……”。

　　2．倍数比较。