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题库 / OG2021-SC-858
By skimming along the top of the atmosphere, a proposed new style of aircraft could fly between most points on Earth in under two hours, according to its proponents.
By skimming along the top of the atmosphere, a proposed new style of aircraft could fly between most points on Earth in under two hours, according to its proponents.
By skimming along the top of the atmosphere, proponents of a proposed new style of aircraft say it could fly between most points on Earth in under two hours.
A proposed new style of aircraft could fly between most points on Earth in under two hours, according to its proponents, with it skimming along the top of the atmosphere.
A proposed new style of aircraft, say its proponents, could fly between most points on Earth in under two hours because of its skimming along the top of the atmosphere.
According to its proponents, skimming along the top of the atmosphere makes it possible that a proposed new style of aircraft could fly between most points on Earth in under two hours.
考察知识点：
（1）动作和主语一致性原则。skimming是由aircraft完成的，后半句的主语只能是aircarft，不能是proponents -- 排除选项2
（2）区分by, with, because of，依次表示方式（如何实现），伴随（2件事同时发生），因果（因为skimming所以。。。），显然此处表示方式更恰当 -- 排除选项3&4
（3）according to sb vs. says sb的差异。后者常用逗号引用说话的内容，前者不需要 -- 排除选项4
（4）make it possible for sb to do sth -- 排除选项5
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