一、形容词与副词的同级比较： 由"as(so)...as"引出，其否定式为"not so..."或"not as...as",考生还应注意下列含有"as"结构或短语的句子
(一)as such：表示上文所指明的事或人
He is a child,and must be treated as such. 他是个孩子，必须被当作孩子对待。
(二)as much：表示"与...同量"
Take as much as you like. 拿多少都行。
I would gladly have paid twice as much for it. 就是价格再贵一倍，我也会愿意把它买下的。
He as much as admitted the whole story. 他几乎全部承认了。
(三) as many：表示"与...一样多"
I found six mistakes in as many lines. 我在六行中发现了六个错。
二、表示"几倍于"的比较级：用twice (两倍)，four times (四倍)，ten times (十倍)加上as ... as 结构
- The fiveyear deal obligates ［A］ the country to buy nine million tons ［B］ of grain a year ［C］ ， three million more as ［D］ the old pact's minimum.
This one is four times as big as that one. 这个是那个的四倍大。(这个比那个大三倍。) / Our campus is three times as large as yours. 我们的校园比你们的大两倍。 / He has books twice as many as she does. 他的书比她多一倍。
三、"the same ＋名词＋as"表示同等比较
- The lens of a camera performs _____ the lens of the eye.
［A］ in the same function
［B］ the same function as
［C］ the function is the same as
［D］ and has the same function - The elimination of inflation would ensure that the amount of money used in repaying a loan would have _____ as the amount of money borrowed.
［A］ as the same value
［B］ the same value
［C］ value as the same
［D］ the value is the same
四、比较级前可用a little, a bit, slightly, a great deal, a lot,many, much等词语表示不定量，far, completely,still表示程度或更进一步
- There are now _____ methods for studying color vision in infants than there once were.
［A］ more sophisticated than
［B］ much more sophisticated
［C］ much sophisticated
［D］ sophisticated - The photographs of Mars taken by satellite are _____ than those taken from the Earth.
［A］ clearest
［B］ the clearest
［C］ much clearer
［D］ more clearer - Common porpoises(海豚) are usually not considered ［A］ migratory， although ［B］ some do move ［C］ to more warmer ［D］ waters in winter.
