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.

　　16）The grain of rye is longer [A] and slenderer [B] than [C] those of [D] wheat.

　　解析：D错。改为that.这里比较的“The grain”不是复数，不能用复数代词those.

　　17）The activities of the international marketing researcher are                 frequently much broader than .

　　[A] the domestic marketer has [B] the domestic marketer does

　　[C] those of the domestic marketer [D] that which has the domestic marketer

　　解析：C为正确答案。比较句中，连词than前后，即所比较的成分要一致，应该在同种事物间进行比较。本句所比较的是两种 activities ，故C正确，代词those 代替“the activities”。

　　18）The grape is              cultivated plants.

　　[A] one of the oldest [B] the oldest one

　　[C] one which the oldest [D] the one is the oldest of

　　解析：A对。“one of the oldest…”表示“（历史）最长的栽种植物之一”，C和D均不合语法，而B选项中的one多余。

　　19）             ，William Shakespeare is the most widely known.

　　[A] With all writers in English

　　[B] All writers in English

　　[C] All of the writers in English

　　[D] Of all writers in English

　　解析：D为正确答案。

　　20）The crane is                of the wading birds.

　　[A] the tallest

　　[B] the tallest that is

　　[C] which is the tallest

　　[D] which the tallest is

　　解析：A为正确答案。

　　21）The Appalachians Trail，extending [A] approximately 2，020 miles [B] from Maine to Georgia，is the longer [C] continuous [D] marked footpath in the world.

　　解析：C错。只有在两者相比较时才使用比较级，而本句出现了状语in the world，明显表示不止两者相比，故应改用最高级（the）longest .

　　22）La Paz，Bolivia is the higher [A] capital city in [B] the western hemisphere and [C] the second highest [D] in the world.

　　解析：A错。改为the highest.

　　23）The best way to control rats is                 by seeing that they have as .

　　[A] possibly little nourishment [B] nourishment possibly little

　　[C] little as possible nourishment [D] little nourishment as possible

　　解析：D 为正确答案，“as little nourishment as possible ”意为“尽可能少的养料”。

　　24）Earlier [A] or later，all lakes are influenced [B] by eutrophication，a process in which lake sediment（沉积物）lowers the depth [C] of the water and drains（除去）oxygen from it [D] .

　　解析：A错。改为sooner.

　　25）Alexander Graham Bell once told his family that he would rather                be remembered as a teacher of the deaf of the telephone.

　　[A] than inventing [B] than as the inventor

　　[C] the invention [D] as the inventor

　　解析：B为正确答案，两个短语“as a teacher of the deaf”和“ as the inventor of the telephone”相比。

　　26）Wool is characteristic on which to                 classify breeds of sheep.

　　[A] most obviously

　　[B] obvious the most

　　[C] the most obvious

　　[D] the most obvious that is

　　解析：C为正确答案。注意：空档后的“characteristic”是名词而不是形容词，所以不能填A。

　　27）The Democratic party has controlled [A] the most [B] of the elected positions at [C] state and local levels in South Carolina since [D] the Reconstruction.

　　解析：B错。改为most.

　　28）During [A] the seventeenth century the most [B] colonists were primarily concerned with [C] economics [D] and defense.

　　解析：B错。改为most.

　　29）Belgium，in the [A] 19th century，rapid [B] grew into [C] an industrial [D] country.

　　解析：A错。改为rapidly.

　　30）The Lost Colony in North Carolina mysterious [A] disappeared between [B] 1587 and 1590，when its [C] founder returned from a visit [D] to England.

　　解析：A错。改为mysteriously.

　　31）Many flatworms have of eyes             .

　　[A] more pairs than one

　　[B] more than one pair

　　[C] one more pair than

　　[D] one pair more than

　　解析：B为正确答案。

　　32）Of the two houses             the family prefers .

　　[A] the most isolated one

　　[B] the one isolated more

　　[C] the more isolated one

　　[D] the isolated one more

　　解析：C为正确答案。

　　33）Freezing is                    at present one of the of preserving meats and vegatables.

　　[A] most methods are important

　　[B] methods most important

　　[C] most important methods

　　[D] most are important methods

　　解析：C为正确答案。

　　34）The radio was of so [A] inferior quality that [B] I took it back [C] and asked for a better one [D] .

　　解析：A错。改为such.