The limits of a person’s intelligence，generally speaking，are fixed at birth，but_
题型：不详难度：来源：
The limits of a person’s intelligence，generally speaking，are fixed at birth，but________he reaches these limits will depend on his environment.(2012·安徽，27)| A．where | B．whether | | C．that | D．why |
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答案
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解析
B
解析 句意为：一个人的智力极限，通常来说，出生时就已经定型了。但他是否能够达到这些极限则取决于他所处的环境。根据depend on可知，主语从句含有不确定因素，可排除C项。where表示地点；why表示原因，用于此处不合适；而使用whether表示“是否”，与题意吻合。 |
举一反三
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________ caused the accident is still a complete mystery.| A．What | B．That | C．How | D．Where |
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It makes little difference to me ________we go or stay.| A．whether | B．where | C．that | D．how |
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