标题: OG11-103 [打印本页]
作者: XIAOXIANGXI 时间: 2006-11-15 07:19 标题: OG11-103
103. The development of a new jumbo rocket that is expected to carry the United States into its next phase of space exploration will be able to deliver a heavier load of instruments into orbit than the space shuttle and at a lower cost. （A） The development of a new jumbo rocket that is expected to carry the United States into its next phase of space exploration will be able to deliver a heavier load of instruments into orbit than the space shuttle and at a lower cost. （B） The development of a new jumbo rocket is expected to carry the United States into its next phase of space exploration and be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle. （C） The new development of a jumbo rocket， which is expected to carry the United States into its next phase of space exploration， will be able to deliver a heavier load of instruments into orbit at a lower cost than the space shuttle. （D） A newly developed jumbo rocket， which is expected to carry the United States into its next phase of space exploration， will be able to deliver a heavier load of instruments into orbit than the space shuttle can， and at a lower cost. （E） A newly developed jumbo rocket， which is expected to carry the United States into its next phase of space exploration， will be able to deliver a heavier load of instruments into orbit than the space shuttle and to cost less.
为什么E不对？to cost less和to deliver平行不对么？
作者: dabiaoxun 时间: 2006-11-16 06:48
比较不对称，这里是A newly developed jumbo rocket can deliver得东西和shuttle can deliver得东西。 to cost和to deliver不平行，逻辑意思不对，不能说rocket be able to cost/也就是说不能说roket有能力cost。这里需要注意be able to 得用法.
作者: XIAOXIANGXI 时间: 2006-11-16 19:59
be able to == can?
作者: dengxy80 时间: 2006-11-18 07:22
be able to有主观的意思，就是说，我认为我可以，我认为我具有这个能力，能不能做取决于我（主语）。 Can是可以，表示功能性的意思。 据个例子， I am able to run 1000 miles an hour. The machine can reach moon within 10 hours. 这里说无论怎么样，机器具有这个速度。但是没准我今天心情好我就跑了1000，明天就跑了200。如果两个词放在一起，大部分情况选can
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