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标题: 求助prep官方软件上的一道题——貌似之前的讨论都不完善 [打印本页]

作者: crystal522 时间: 2012-4-15 22:38
标题: 求助prep官方软件上的一道题——貌似之前的讨论都不完善
Meteorshowersandindividulal streaks of light that flash across the sky every night are generated when tiny flecks of celestial detritus, often no longer than grains of sand or of pebbles, burn up speeding through thr atmosphere.
A. grains of sand or of pebbles, brun up speeding
B. grains of sand or pebbles, burn up while speeding
C. grains of sand or pebbles, which burn up while speeding
D. a grain of sand or pebbles, which burn up as it speeds
E. a grain of sand or pebble, burns up when it speeds
答案是B
想问一下BC，burn up while speeding是修饰什么呢？如果不是修饰pebbles的话，是不是应该加which呢？

lz语法超级弱，以前做题都靠语感，状语从句什么的都分不清，献丑了......

作者: lijiazhou 时间: 2012-4-15 22:47
burn up是主句的谓语，while speeding是状语从句的省略，符合主句主语和从句主语一致，且从句动词为系动词

Meteorshowersandindividulal streaks of light that flash across the sky every night are generated when tiny flecks of celestial detritus, often no longer than grains of sand or of pebbles, burn up speeding through thr atmosphere.
A. grains of sand or of pebbles, brun up speeding
B. grains of sand or pebbles, burn up while speeding
C. grains of sand or pebbles, which burn up while speeding
D. a grain of sand or pebbles, which burn up as it speeds
E. a grain of sand or pebble, burns up when it speeds
答案是B
想问一下BC，burn up while speeding是修饰什么呢？如果不是修饰pebbles的话，是不是应该加which呢？

lz语法超级弱，以前做题都靠语感，状语从句什么的都分不清，献丑了......

-- by 会员 crystal522 (2012/4/15 22:38:36)

作者: stevenvboy 时间: 2012-4-15 23:05
第一句不可能是C，第一which会造成指代不清，到底是修饰pebbles还是sand or pebbles，或是前面的detritus 此外，更糟糕的是，如果用了which，那这个when从句的结构就不完整了，貌似只有一个主语，谓语不见了。

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