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标题: 问两道prep上的题，谢谢大家了！ [打印本页]

作者: 笨西笨 时间: 2009-12-10 23:12
标题: 问两道prep上的题，谢谢大家了！
less than 35 years after the release of African honeybees outside Sao Paulo, Brazil, their descendants, popularly known as killer bees, had migrated as far north as southern Texas.
A. Less than 35 years after the release of African honeybees outside Sao Paulo,Brazil,
B.In less than 35 years since releasing African honeybees outside Sao Paulo,Brazil,
C.In less than the 35 years since African honeybees had been released outside Sao Paulo,Brazil,
D.It took less than 35 years from the release of African honeybees outside Sao Paulo,Brazil,when
E.It took less than the 35 years afterthe time that African honeybees were released outside Sao Paulo,Brazil,and then

答案：A

1.a中的less前不用加介词么？2.b中since后面是不是只能加从句而不能是短语？3.我觉得选a主句中的过去完成时没有对应的过去时啊？

A new hair-growth drug is being sold for three times the price, per milligram, as the drug's maker charges for another product with the same active ingredient.
A.as
B.than
c.that
D.of what
E.at which

答案：C

不是有一个句型是A is three time the size/... of B,那D为什么不行呢？

作者: cynthia627 时间: 2009-12-11 00:25
the size of the market charges? 这个有点奇怪啊！这里本身很简单。就是插入语省略，that直接修饰price~ 你看，怎么也要选最优最简洁啊~

作者: yhwut 时间: 2009-12-11 03:10
后面那道题你说的对A is three time the size/... of B
但这种结果要求A，B比较对象是一样的。D选项由于多了个What
使原题变成new drug和price of another drug的对比，就不平行了

前面那道题，我认为，如果加了介词，前面那句就成了一个介词短语作状语，使得主句中的their无指代。
而且过去完成时是必要的，因为，A bees released这个时间点向后35年并不是今天的时间点，所以在这35年里属于过去的一个过去时间段

作者: 笨西笨 时间: 2009-12-11 19:54
恩，谢谢，我理解了，我觉得你说的很对！

作者: zscsl 时间: 2009-12-11 20:05

后面那道题你说的对A is three time the size/... of B
但这种结果要求A，B比较对象是一样的。D选项由于多了个What
使原题变成new drug和price of another drug的对比，就不平行了

前面那道题，我认为，如果加了介词，前面那句就成了一个介词短语作状语，使得主句中的their无指代。
而且过去完成时是必要的，因为，A bees released这个时间点向后35年并不是今天的时间点，所以在这35年里属于过去的一个过去时间段

-- by 会员 yhwut (2009/12/11 3:10:00)

我可能想法有点奇怪哈，我觉得

前面那道题目，如果加介词，主句要倒装吧。。

后面那个。。定语从根据因为price 是先行词，做后面charge的宾语。。，加of是什么哟。。。就不对头了。。而且what也不能引导定语从句。。。

作者: kakadinho 时间: 2013-10-2 09:12
第一题的时间不用再加介词的，单独一个XX years肯定不行，但是有after...这个对时间做了精确的辅助说明就可以了。
体会一下：
1. Three years later, I became a lawyer.
2. Five years ago, she married me.
3. The war happened 100 years before the Suya King was born.

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