more than结构的考点符合比较对象对等，且形式对称的原则，通常我们以than为分割点看前后比较的结构，也就是说than后面的结构在前面一定出现过，另外在GMAT语法比较中还经常出现as ...as的结构，所以本文就给大家介绍下GMAT语法as ...as 和more than 结构考点讲解。
GMAT语法大百科每日语法点：关于as ...as 和more than 结构的用法说明
1... times as ... as ...
結構︰倍數詞+as+形容詞/副詞+as…
說明︰此句型意為“是…的幾倍”。“兩倍”是 twice，而三倍以上的“倍”，通常用 times。
An ordinary subway train, approaching the station, can be twice as loud as the loudest jet.
平常的地下火車接近車站時，發出的聲音可能是最大聲的噴射機的兩倍。
2.more than ... as ... as
結構︰more than+倍數詞+as+形容詞/副詞+as
說明︰此句型意為“是…的幾倍還不止”。“兩倍”是 twice，而三倍以上的“倍”，通常用 times。
He is more than three times as rich as I. (=He is three times richer than I.)
他的財富是我的三倍還不止。
3... times ...er than ...
結構︰倍數詞+形容詞或副詞比較級+than…
說明︰此句型意為“比…大幾倍”。“兩倍”是 twice，而三倍以上的“倍”，通常用 times。
We now know that X-ray waves are 2,000 to 10,000 times shorter than light waves.
我們現在知道X光波比光波短二千到一萬倍。
4... times the/my N ...
結構︰…倍數詞+the(或所有格)+名詞
說明︰此句型意為“是…的幾倍”。<倍數詞>與<名詞>之間一定有 the 或<所有格>。有時可改為“<倍數詞>+as+<形容詞>”。三倍以上的“倍”，通常用“times”。而“more than+<倍數詞>+the(或<所有格>)+<名詞>”譯為“是…的幾倍還不止”。
It was over twice the distance of the earth from the sun.
那是地球到太陽的距離的兩倍多。
As it is with traditional pharmacies, on-line drugstores rely on prescriptions to be successful, since it is primarily prescriptions that attract the customers, who then also buy other health-related items.
(A) As it is with traditional pharmacies, on-line drugstores rely on prescriptions to be successful
(B) As with the case of traditional pharmacies, on-line drugstores rely on prescriptions to have
success
(C) As is the case with traditional pharmacies, prescriptions are the cornerstone of a successful
on-line drugstore
(D) As traditional pharmacies, so on-line drugstores rely on prescriptions to be successful
(E) Like traditional pharmacies, the cornerstone of a successful on-line drugstore is prescriptions
主系表结构的比较如果从句系动词与主句相同，其实系动词是可省可不省的。 此题关键是 be likely to do 是固定搭配，据此排除A
最后答案是C
》》点击了解GMAT语法比较题之more than结构
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