快要考试了,哪位朋友能再指导一下double和twice的用法

RT,因为总是被选项中的这两个搞得很混乱,希望高人指教

谢谢!

我也错好多次，现在已经不去分辨了，因为遇到的都是more than double(选这个就行了）

twice则记住twice as much as 和twice the price of（of改为as永远错）

我也错好多次，现在已经不去分辨了，因为遇到的都是more than double(选这个就行了）

twice则记住twice as much as 和twice the price of（of改为as永远错）

longman:

twice: adverb, predeterminer  
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
double adj. v. n. adv. predeterminer
adj
twice as big, twice as much, or twice as many as usual
a double whisky The city was enclosed by walls of double thickness.
predeterminer
twice as big, twice as much, or twice as many
double the amount/number/size etc
We'll need double this amount for eight people.The value of the house is double what it was.

double 可以做倍数 也可以做动词

1.倍数  double rhe number/as big as/biger than

2.动词 the number is doubled/the number more than dobules

倍数的表示方法有

1，倍数+名词  twice the number/rate

2, 倍数+as...as  (as必须成对出现)

3. 倍数+比较级

double=twice