关于twice的用法

happyglf126

 白勇语法里twice的用法:

twice as ... as...

twice+the+n

twice+what从句

zjpopo

Up!

cathy198810

求助：这题是新东方小兰上关于 twice & double 的题目:
According to surveys by the National Institute on Drug Abuse, about 20 percent of young adult used cocaine in 1970, doubling those reported in the 1977 survey.
A. doubling those reported in 1977 survey
B. to double the number the 1977 survey reported
C. twice those the 1977 survey reported
D. twice as much as those reported in the 1977 survey
E. twice the number reported in the 1977 survey

答案是选E. 但是这里twice 是用作副词吗？那如果换成double 用法应该是怎么样的？
求助于各位牛牛～

balabaladou7

以下是引用cathy198810在2009-2-16 13:37:00的发言：
求助：这题是新东方小兰上关于 twice & double 的题目:
According to surveys by the National Institute on Drug Abuse, about 20 percent of young adult used cocaine in 1970, doubling those reported in the 1977 survey.
A. doubling those reported in 1977 survey
B. to double the number the 1977 survey reported
C. twice those the 1977 survey reported
D. twice as much as those reported in the 1977 survey
E. twice the number reported in the 1977 survey

答案是选E. 但是这里twice 是用作副词吗？那如果换成double 用法应该是怎么样的？
求助于各位牛牛～

这里的用法是twice+n

如果换成double，则是doubling the number reported in the 1977 survey

michellejoy

学习完大牛们的讨论，感觉还是要注意比较对象的代词指代，those，it能否正确指代前面的内容

songlovegt

再来一个例子

GWD TN 9-14 or GWD-12-14

In 1914 a total of 469,000 cars and trucks were produced in the United States, but in 1929 almost twice the numbers of tucks alone came off the assembly lines.

A.     the numbers of tucks alone

B.     that number of trucks alone

C.     the number of trucks by themselves

D.     as many trucks themselves

E.     as many trucks by themselves

答案是B

songlovegt

(Longman)

twice / twaɪs /
1
two times
He was questioned by police twice yesterday.
twice a day/week/year etc (=two times in the same day, week etc)
    
Letters were delivered twice a week only.None of our dinner menus are exactly the same twice over .
2
two times more, bigger, better etc than something else
twice as many/much (as something)
    
They employ 90 people, twice as many as last year.

twice as high/big/large etc (as something)
    
Interest rates are twice as high as those of our competitors.

twice the size/number/rate/amount etc
    
an area twice the size of Britain

songlovegt

GWD-27-Q7

Providing
initial evidence that airport are a larger source of pollution than
they were once believed to be, environmentalists in Chicago report that the total amount of pollutant emitted annually by vehicles at O’Hare International Airport is twice as much as that which is being emitted annually by all motor vehicles in the Chicago metropolitan area.

 

1. as much as that which is being emitted annually by all
2. as much annually as is emitted by the
3. as much compared to what is annually emitted by all
4. that emitted annually by all
5. that emitted annually compared to the

参考答案

jhtcherry

以下是引用songlovegt在2009-3-31 23:12:00的发言：
再来一个例子

GWD TN 9-14 or GWD-12-14

In 1914 a total of 469,000 cars and trucks were produced in the United States, but in 1929 almost twice the numbers of tucks alone came off the assembly lines.

A.     the numbers of tucks alone

B.     that number of trucks alone

C.     the number of trucks by themselves

D.     as many trucks themselves

E.     as many trucks by themselves

答案是B

为啥一定要用B的that而不用A的the？（如果A选项中tucks只是误拼错了的话）
alone比by themselves好~？ 请解释一下呢 =n_n=

其次我还找到一道这样的题，用上面的twice的用法好像还是不怎么好解释。。请大家指教：

GWD4-Q4

A new hair-growing 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
     

答案是C。three times that？

GWD4-Q4

A new hair-growing 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
     

答案是C。three times that？

[此贴子已经被作者于2009-4-5 14:09:02编辑过]

songlovegt

为啥一定要用B的that而不用A的the？
如果用 the number 只有一个指代
    469,000 但这里包括了 cars, 所以为了区别，用 that