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标题: These 是否可以作为代词独立使用 prep 2-34 [打印本页]

作者: yuyue0277 时间: 2009-10-20 18:31
标题: These 是否可以作为代词独立使用 prep 2-34

Besides adding complementary flavors to many foods, hot sauces stimulate the release of endorphins in the brain, just as exercise does, and these have a pain-relieving effect like morphine's.

(A) hot sauces stimulate the release of endorphins in the brain, just as exercise does, and these have a pain-relieving effect like morphine's

(B) hot sauces stimulate the release of endorphins in the brain, like exercise, and they have a pain-relieving effect that is like morphine

(C) hot sauces and exercise both stimulate the release of endorphins in the brain, and they have a pain-relieving effect like morphine

(D) the release of endorphins in the brain is stimulated both by hot sauces and exercise, and they have a pain-relieving effect like morphine's

(E) the release of endorphins in the brain is stimulated by hot sauces, just as with exercise, and these have a pain-relieving effect like that of morphine

PREP的笔记里说‘THIS’不能做单独指代，但是这题他的复数形式‘these’ 就独立指代前面的 ‘endorphins’ 。这个指代的原则只限于单数形式？

作者: zhaoyiqing 时间: 2009-10-20 19:13

不可以 THIS THAT THESE THOSE都不能单独使用

作者: yuyue0277 时间: 2009-10-20 19:52

那上面这道题怎么解释？

作者: tq0a4bvc 时间: 2009-10-20 20:03
前文出现了就可以指代了，单独出现不可以~~

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