SOS!语法大全问题整合

rainzyx23

做语法大全也有十几天了，每天坚持做两个SECTION，一个小时，然后再用一个小时整理总结。一直没有大块的时间上网，正好赶上清明节放假把我的一些问题，想不清楚的题目发到这。希望大家一起讨论，牛人帮忙解答。语法大全：
32.
Astudy commissioned by the Department of Agriculture showed that if calvesexercise and associated with other calves, they will require less medicationand gain weight quicker than do those raised in confinement.
(A) A.associated with other calves, they willrequire less medication and gain weight quicker than do
(B) B.associated with other calves, theyrequire less medication and gain weight quicker than
(C) C.associate with other calves, theyrequired less medication and will gain weight quicker than do
(D) D.associate with other calves, they haverequired less medication and will gain weight more quickly than do（E
(E) E.associate with other calves, theyrequire less medication and gain weight more quickly than  
答案是E.我不理解的地方里，难道THAN 后面不用加DO吗？


52.
Accordingto the Better Business Bureau, if you fail to advertise the highest price ina range of prices for a service or product as prominently as that of thelowest, itviolates the New York Consumer Protection Law.  
正确答案是C.failure to advertise the highest pricein a range of prices for a service or product as prominently as the lowest   这道题我选对了，但是请教一下怎么翻译。


 214.
Climaticshifts are so gradual as to be indistinguishable at first from ordinaryfluctuations in the weather.
(A) A.so gradual as to be indistinguishable
(B) B.so gradual they can beindistinguishable
(C) C.so gradual that they are unable to bedistinguished
(D) D.gradual enough not to bedistinguishable（A）
(E) E.gradual enough so that one cannotdistinguish them               答案是A，为什么不能选C呢？BE UNABLE TO DO为什么是错误表达呢？

 289.Executivesand federal officials say that the use of crack and cocaine is growing rapidlyamong workers, significantly compounding the effects of drug and alcoholabuse, which already are a cost to business of more than $100 billion ayear.
(A) A. significantly compounding the effectsof drug and alcohol abuse, which already are a cost to business of
(B) B.significantly compounding the effectsof drug and alcohol abuse, which already cost business
(C) C.significantly compounding the effectsof drug and alcohol abuse, already with business costs of
(D) D.significant in compounding the effectsof drug and alcohol abuse, and already costing business（B）
(E) E.significant in compounding the effectsof drug and alcohol abuse, and already costs business
  这题答案是B。我不知道的是COST的谁发出的，难道不是USE吗？

     291.Factoryoutlet stores, operated by manufacturers, are usually located miles fromdowntown and regional shopping centers so as not directly to be competitiveagainst department stores in the same trading area.
(A) A.so as not directly to be competitiveagainst
(B) B.in order for them not to have directcompetition with
(C) C.so that they do not compete directlywith
(D) D.in order that they are not directlycompetitive against（C）
(E) E.for the purpose of not competingdirectly with

答案是C,我选的是E，不知道为为什么不行。这里有FOR THE PURPOSE OF 表目的不行吗？


385。
In itsmost recent approach, the comet Crommelin passed the Earth at about the samedistance and in about the same position, some 25 degrees above the horizon,thatHalley’s comet will pass the next time it appears.
(A) A.that Halley’s comet will pass
(B) B.that Halley’s comet is to be passing
(C) C.as Halley’s comet
(D) D.as will Halley’s comet（D）
(E) E.as Halley’s comet will do                  答案是D，我选的是E。为什么不用加DO呢？