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 這個(gè)森林里老虎的數(shù)量是十年前的三倍.

解答 答案:what it was.
分析句子的結(jié)構(gòu)可知,本題是考查倍數(shù)的表達(dá)方式,根據(jù)第二句的句式特點(diǎn)可知答案為what it was.

點(diǎn)評(píng) 本句重點(diǎn)在于倍數(shù)的表達(dá):
1."…times+形容詞/副詞的比較級(jí)+than …"
例如:Line AB is three times longer than line CD.線段 AB 是(線段) CD 的三倍長(zhǎng).
2."…times+as+形容詞/副詞的原級(jí)+as …"
例如:This table is three times as long as that one.這張桌子是那張桌子的三倍長(zhǎng).
3."…times+the+名詞(如:size,height,weight,length,width 等)+of …"
例如:The earth is 49 times the size of the moon.地球的體積是月球的 49 倍.
4.倍數(shù)+what從句.如:
The production is now three times what it was ten years ago.現(xiàn)在的產(chǎn)量是十年前的三倍.

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