27. 1998 saw several new ventures promoting online distance learning both at the college and graduate level, but also faculty members in large numbers began questioning whether the computer screen was an adequate replacement for the classroom.
A. 1998 saw several new ventures promoting online distance learning both at the college and graduate level, but also faculty members in large numbers began
B. In 1998 several new ventures were promoting online distance learning for both college-and for graduate-level courses, but it was also a year for a large number of faculty members who began
C. With several new ventures promoting online distance learning both for college and graduate courses in 1998, it was also a year when a large number of faculty members had begun
D. Although 1998 saw several new ventures promoting online distance learning for both college- and graduate-level courses, it was also a year when a large number of faculty members began
E. Several new ventures were promoting online distance learning in 1998, at both the college level as well as the graduate, but it was also a year for faculty members to begin in large numbers
提供者kissxkiss备注：这道题，感觉考的是句子平行和指代，因为有三个选项把1990放在FIRST SENTENCE的末尾——in 1990, it was also a year。
→参考观点+Prep Notes补充：果然是Prep！通过both and的不平行问题，可直接排除其他四个选项。A中but also未有与之对应的not only，B中it指代有问题，逻辑上指代1998，但是形式上却指代new ventures矛盾。C中with改变句子重心，同时had begun也没有与之呼应的时间词汇，没有必要。E中for … to … 结构不如when直接引导从句清晰。
28. 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.
A. a scale developed by astronomers rates the likelihood that a particular asteroid or comet may
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
D. astronomers have developed a scale for rating the likelihood that a particular asteroid or comet will
E. astronomers have developed a scale that rates the likelihood of a particular asteroid or comet that may
感谢kissxkiss提供的GWD原题：GWD-26-Q17。科学家弄了个scale to rate how likely 彗星撞地球，我按GWD选的。
→参考观点：responding的主语为人，故排除A+B，D的for doing不如to do简洁，E改主干，C虽然看上去别扭，但是实际上是likely前置带来的阅读困难，放回去则成了“how a particular asteroid and comet will be likely to …”就舒服多啦。
楼主我已经擅自先斩后奏,为了方便即将考试的同学, 我擅自先把这些题目贴上狗了才想起找你确认. 希望有肯定的答复哈
-- by 会员 zliycdr (2010/6/10 2:48:34)
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