1Similar to rising interest rates, consumer and producer prices have been rising.
(A) Similar to rising interest rates, consumer and producer prices have been rising.
(B) Consumer and producer prices have been rising, as have interest rates.
(C) As interest rates are rising, so have consumer and producer prices.
(D) Consumer and producer prices have been rising, like interest rates do.
(E) Consumer and producer prices, as interest rates, have been rising.
答案是b，为什么？A可不可以呢？
2Because natural gas is composed mostly of methane，a simple hydrocarbon, vehicles powered by naturalgas emit less of certain pollutants than the burning of gasoline or diesel fuel。 (A) less of certain pollutants than the burning of gasoline or diesel fuel (B) fewer of certain pollutants than burning gasoline or diesel fuel do (C) less of certain pollutants than gasoline or diesel fuel (D) fewer of certain pollutants than does burning gasoline or diesel fuel (E) less of certain pollutants than those burning gasoline or diesel fuel 答案是E，pollutants的话我认为应该是用fewer，还有为什么后面还要+个of?
2Because natural gas is composed mostly of methane，a simple hydrocarbon, vehicles powered by naturalgas emit less of certain pollutants than the burning of gasoline or diesel fuel。
(A) less of certain pollutants than the burning of gasoline or diesel fuel
(B) fewer of certain pollutants than burning gasoline or diesel fuel do
(C) less of certain pollutants than gasoline or diesel fuel
(D) fewer of certain pollutants than does burning gasoline or diesel fuel
(E) less of certain pollutants than those burning gasoline or diesel fuel
答案是E，pollutants的话我认为应该是用fewer，还有为什么后面还要+个of?
3The demand for airplane mechanics is expected to grow about ten percent a year in the next decade,largely because new federal rules calling for major modifications to older planes and because the air-lines are adding hundreds of new jets.
(A) new federal rules calling for major modifica-
tions to older planes
(B) new federal rules, which call for major modifi-
cations to older planes
(C) new federal rules call for major modifications
to older planes
(D) major modifications to older planes called for
by new federal rules
(E) major modifications to older planes are called
for according to new federal rules
答案是C，想问下B当中加个which会使句子出现什么不同？
1.如果你是新东方上过课的话应该知道，similar to是不可以放句首的，这个句首的概念包括句子的句首以及分居的句首，比如“，similar to”这种用法也是错的。
2.我不知道为什么，因为跟解题无关
3.加了which以后第一个because后面将不是一个句子。一不符合because后面要加句子；二不符合and前后对称的原则
THX，非常好的回答
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