高中英語(yǔ)倍數(shù)表達(dá)詳解
2020-09-04 19:37:27網(wǎng)絡(luò)整理
1. 倍數(shù)+as+形容詞或副詞的原級(jí)+as+其它。
這種結(jié)構(gòu)又常演變成下列兩類：
①倍數(shù)+as+many+可數(shù)名詞復(fù)數(shù)+as;
�、诒稊�(shù)+as+much+不可數(shù)名詞+as。如：
There are seven times as many people as I expected.
是我預(yù)料的人數(shù)的七倍。
There is five times as much coffee in this glass as in that one.
這個(gè)杯子里的咖啡是那個(gè)杯子里的五倍。
2. 倍數(shù)+形容詞（或副詞）的比較級(jí)+ than+其它。如：
The hall is five times bigger than our classroom.
這個(gè)大廳的面積比我們教師大五倍。
3. 計(jì)量名詞+of+名詞+be+倍數(shù)+that+of+其它。如：
The size of the newly broadened square is four times that of the previous one.
新擴(kuò)建的廣場(chǎng)為以前的四倍大。
4. 倍數(shù)+what從句。如：
The production is now three times what it was ten years ago.
現(xiàn)在的產(chǎn)量是十年前的三倍。
5. 倍數(shù)+more+名詞+than+其它。如：
There are nine times more books in his bag than in yours.
他書(shū)包里的書(shū)比你書(shū)包里的書(shū)多九倍。
6. 其它表達(dá)。如：
She's twice/double my age.
她的年齡是我的兩倍。
The average income of the staff has been increased by 50 percent compared with last year.
與去年相比，該單位職工的收入已增加了50%。
He runs faster than me by three times.
他跑得比我快三倍。
【考查方向】
1）倍數(shù)在句中的位置一般放在第一個(gè)as前面或比較級(jí)前面或名詞前面。
2）用times表示倍數(shù)時(shí)，一般只限于表示包括基數(shù)在內(nèi)的三倍或三倍以上的數(shù)。表示兩倍可以用twice或double,一倍用once.
【重點(diǎn)歸納】
除了我們初中所學(xué)的形容詞的比較級(jí)的用法，本模塊我們主要?dú)w納幾種句式結(jié)
（一）含倍數(shù)的比較句型
1. 倍數(shù)+as+形容詞原級(jí)+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.
【特別提醒】
“as…as”中間加入名詞的句式：
●倍數(shù)+as+形容詞+a/an+可數(shù)名詞單數(shù)+as…
●倍數(shù)+as+形容詞+可數(shù)名詞復(fù)數(shù)/不可數(shù)名詞+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.
【難點(diǎn)點(diǎn)撥】
該結(jié)構(gòu)的省略：通常省略形容詞后面的名詞及比較的部分。如：
I have to transfer(轉(zhuǎn)乘）buses so I spend twice as much (money as others)for the bus every day.
2. 倍數(shù)+形容詞比較級(jí)+than…。如：
This street is four times shorter than that one.
Fear of danger is ten thousand times more terrifying than danger itself.
【特別提醒】
倍數(shù)+形容詞比較級(jí)+名詞+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，請(qǐng)注意下面兩種說(shuō)法：
(1) 倍數(shù)+what從句。如：
The length of the road is four times what it was three years ago.
(2) 倍數(shù)+that of+被比較對(duì)象。如：
Airmail charges almost twice or three times that of a normal mail.
�。ǘ┢渌涫�
1. "比較級(jí)+and+比較級(jí)"表示"越來(lái)越…"。如：
Things are getting better and better every day.
Our country is becoming more and more beautiful.
2. "the+比較級(jí)…，the+比較級(jí)…"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.
【知識(shí)擴(kuò)展】
在形容詞比較級(jí)前可以加a little, a bit, a lot, no, any, much, far, even,still等副詞組表示程度的加深。如：
The result is much better than we expected.
Actually, health is far more important than wealth.
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