同步练习

　　1)The five year 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.

　　解析：D错。改为than.

　　2)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

　　解析：B对。本句的汉语意思是“照相机的镜头和眼睛的水晶体所起的作用相同”。

　　3)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

　　解析：B对。本句的汉语意思是“消除通货膨涨会保证还的钱与借时的钱同值”。

　　4)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

　　解析：B为正确答案。

　　5)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

　　解析：C为正确答案。

　　6)Common porpoises(海豚)are usually not considered [A] migratory，although [B] some do move [C] to more warmer [D] waters in winter.

　　解析：D错。改为warmer.

　　7)During observations made over a fifty year period， the power output of the Sun has than a few tenths of one percent.

　　[A] varied by no more [B] varied no more by

　　[C] not varied more by [D] more varied by not

　　解析：A为正确答案。

　　8)Few of the people who live on the cooperatives than they were as laborers.

　　[A] is well off financial

　　[B] financially well off

　　[C] are better off finanically

　　[D] financial better off

　　解析：C为正确答案。

　　9)He came all the way to China for promoting friendship for making money.

　　[A] other than [B] better than [C] more than [D] rather than

　　解析：D为正确答案。

　　10)He preferred to write the letter by hand .

　　[A] to typing it

　　[B] than type it

　　[C] to type it

　　[D] rather than type it

　　解析：D为正确答案。

　　11)The harder he tried，[A] the worst [B] he danced [C] before the large [D] audience.

　　解析：B错。改为worse.

　　12)The quicker a loan [A] is repaid [B] ，the least [C] it will [D] cost.

　　解析：C错。改为less.

　　13)Hot objects emit do cold objects .

　　[A] rays more than infrared(红外线) [B] rays are more infrared than

　　[C] more than infrared rays [D] more infrared rays than

　　解析：D对。本句中的比较级为形容词more(much 的比较级)，被比较的两个事物为“hot objects”和“cold objects”，在所释放(emit)的红外线(infrared rays)的量上，前者多于后者。其中more修饰infrared rays，它们不能被分开，故只有D在词序上正确。空白后面为倒装语序，其中的do代替动词emit，本句空白后也可用正常语序，即“cold objects do”。

　　14)Last year the country had [A] fewer imports as [B] did the year before last [C] due to [D] the energy crisis.

　　解析：B错。改为than.

　　15)Long Island，an [A] island that forms the [B] southeastern part of New York，has a [C] greater population than which [D] of forty two of thefifty states.

　　解析：D错。改为that，代替population.