英语高考倍数表达练习(高中英语倍数表达法详解)
倍数表达法是历届高考的热点。当我们要表达甲是乙的几倍时,通常可使用以下句型:
1. 倍数 as 形容词或副词的原级 as 其它。这种结构又常演变成下列两类:
①倍数 as many 可数名词复数 as;
②倍数 as much 不可数名词 as。如:
There are seven times as many people as I expected.
是我预料的人数的七倍。
There is five times as much coffee in this glass as in that one.
这个杯子里的咖啡是那个杯子里的五倍。
2. 倍数 形容词(或副词)的比较级 than 其它。如:
The hall is five times bigger than our classroom.
这个大厅的面积比我们教师大五倍。
3. 计量名词 of 名词 be 倍数 that of 其它。如:
The size of the newly broadened square is four times that of the previous one.
新扩建的广场为以前的四倍大。
4. 倍数 what从句。如:
The production is now three times what it was ten years ago.
现在的产量是十年前的三倍。
5. 倍数 more 名词 than 其它。如:
There are nine times more books in his bag than in yours.
他书包里的书比你书包里的书多九倍。
6. 其它表达。如:
She's twice/double my age.
她的年龄是我的两倍。
The average income of the staff has been increased by 50 percent compared with last year.
与去年相比,该单位职工的收入已增加了50%。
He runs faster than me by three times.
他跑得比我快三倍。
【考查方向】
1)倍数在句中的位置一般放在第一个as前面或比较级前面或名词前面。
2)用times表示倍数时,一般只限于表示包括基数在内的三倍或三倍以上的数。表示两倍可以用twice或double,一倍用once.
【重点归纳】
除了我们初中所学的形容词的比较级的用法,本模块我们主要归纳几种句式结
(一)含倍数的比较句型
1. 倍数 as 形容词原级 as…。如:
This bridge is three times as long as that one.
His room is twice as big as mine;in other words,mine is only half as big as his.
【特别提醒】
“as…as”中间加入名词的句式:
●倍数 as 形容词 a/an 可数名词单数 as…
●倍数 as 形容词 可数名词复数/不可数名词 as…。如:
Last year my brother twice as big a new house as mine.
He has collected more than three times as many stamps as I (have).
I spent twice as much time on my studies as you did.
【难点点拨】
该结构的省略:通常省略形容词后面的名词及比较的部分。如:
I have to transfer(转乘)buses so I spend twice as much (money as others)for the bus every day.
2. 倍数 形容词比较级 than…。如:
This street is four times shorter than that one.
Fear of danger is ten thousand times more terrifying than danger itself.
【特别提醒】
倍数 形容词比较级 名词 than…。如:
He earns five times more money now than he did ten years ago.
There are three times more books in our library than in yours.
3. 另外,请注意下面两种说法:
(1) 倍数 what从句。如:
The length of the road is four times what it was three years ago.
(2) 倍数 that of 被比较对象。如:
Airmail charges almost twice or three times that of a normal mail.
(二)其它句式
1. "比较级 and 比较级"表示"越来越…"。如:
Things are getting better and better every day.
Our country is becoming more and more beautiful.
2. "the 比较级…,the 比较级…"表示“越…,就越…”。如:
The more you have, the more you want.
The more a man knows, the less he knows he knows.
【知识扩展】
在形容词比较级前可以加a little, a bit, a lot, no, any, much, far, even,still等副词组表示程度的加深。如:
The result is much better than we expected.
Actually, health is far more important than wealth.
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