谢谢marie MM.
再请教:
2. Responding to the public’s fascination with----and sometimes undue alarm over-possible threats from asteroids, a scale developed by astronomers rates the likelihood that a particular asteroid or comet may collide with Earth.
B. a scale that astronomers have developed rates how likely it is for a particular asteroid or comet to
C. astronomers have developed a scale to rate how likely a particular asteroid or comet will be to ----develop a scale to rate ...好象rate的逻辑主语是astronomers,逻辑上不对。
D. astronomers have developed a scale for rating the likelihood that a particular asteroid or comet will ----develop a scale for rating ....用for doing sth解释说明a scale的目的,也没有逻辑主语的问题。
E. astronomers have developed a scale that rates the likelihood of a particular asteroid or comet that may
我还是觉得要选D,而不是C。
3. In 1981 children in the United States spent an average of slightly less than two and a half hours a week doing household chores; by 1997 they have spent nearly six hours a week. 选A的话they指代前面的children,感觉说的是同一群children,我觉得逻辑上不对呀。
B. chores; by 1997 that figure had grown to nearly six hours a week
C. chores, whereas nearly six hours a week were spent in 1997
D. chores, compared with a figure of nearly six hours a week in 1997
E. chores, that figure growing to nearly six hours a week in 1997
[此贴子已经被作者于2004-7-26 11:32:25编辑过] |