GMAT语法比较题练习题2017

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one of the bloodiest battles of the Civil War, fought at Sharpsburg, Maryland, on September 17, 1862, four times as many Americans were killed as would later be killed on the beaches of Normandy during D-Day.

(A) Americans were killed as

(B) Americans were killed than

(C) Americans were killed than those who

(D) more Americans were killed as there

(E) more Americans were killed as those who

the key:A

比较考点：省略主语

shellyaaa:比较中，than 和 as 都可以兼做其后面比较部分的主语。(如果是主语和主语在比较的话) 所以都可以省略主语，直接接谓语。

the 1980’s the rate of increase of the minority population of the United States was nearly twice as fast as the 1970’s.

(A) twice as fast as

(B) twice as fast as it was in

(C) twice what it was in

(D) two times faster than that of

(E) two times greater than

the key: C

比较考点：倍数+名词的用法

rding to a panel of health officials, there has been a great deal of confusion in the medical profession about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to health.

(A) about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to

(B) with respect to obesity being a biological disorder posing serious health risks or if it is related more to appearance than

(C) over whether or not obesity is a biological disorder posing serious health risks or it is a condition more related to appearance than to

(D) about obesity and if it is a biological disorder posing serious health risks or a condition related to appearance more than to

(E) concerning whether obesity is a biological disorder posing serious health risks or it is a condition related to appearance more than

the key:A

rding to a recent study, the elderly in the United States are four times more likely to give regular financial aid to their children as to receive it from them.

(A) the elderly in the United States are four times more likely to give regular financial aid to their children as

(B) the elderly in the United States are four times as likely to give regular financial aid to their children as it is for them

(C) the elderly in the United States are four times more likely to give regular financial aid to their children than

(D) it is four times more likely for the elderly in the United States to give regular financial aid to their children than they are

(E) it is four times as likely that the elderly in the United States will give their children regular financial aid as they are

the key:C

4.A wildlife expert predicts that the reintroduction of the caribou into northern Minnesota would fail if the density of the timber wolf population in that region is more numerous than one wolf for every 39 square miles.

(A) would fail if the density of the timber wolf population in that region is more numerous than

(B) would fail provided the density of the timber wolf population in that region is more than

(C) should fail if the timber wolf density in that region was greater than

(D) will fail if the density of the timber wolf population in that region is greater than

(E) will fail if the timber wolf density in that region were more numerous than

the key:D