题目内容

1．The tiger population in this forest is three times larger than that of ten years ago．
The tiger population in this forest has grown to three timeswhat it was ten years ago．

分析 这个森林里老虎的数量是十年前的三倍．

解答 答案：what it was．
分析句子的结构可知，本题是考查倍数的表达方式，根据第二句的句式特点可知答案为what it was．

点评 本句重点在于倍数的表达：
1．"…times+形容词/副词的比较级+than …"
例如：Line AB is three times longer than line CD．线段 AB 是（线段） CD 的三倍长．
2．"…times+as+形容词/副词的原级+as …"
例如：This table is three times as long as that one．这张桌子是那张桌子的三倍长．
3．"…times+the+名词（如：size，height，weight，length，width 等）+of …"
例如：The earth is 49 times the size of the moon．地球的体积是月球的 49 倍．
4．倍数+what从句．如：
The production is now three times what it was ten years ago．现在的产量是十年前的三倍．

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