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Meteor showers and individual streaks of light that flash across the sky every night are generated when tiny flecks of celestial detritus, often no larger than grains of sand or of pebbles, burn up speeding through the atmosphere.
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
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考点 平行 主谓一致 句法结构
when引导的定语从句中，只属于核心词是flecks,谓语动词用复数，排除E;
句子的谓语动词是burn,CD选项缺少谓语动词，排除；
grains of sand和pebbles平行，grains of pebbles用法错误，or后面不能有of，排除A
答案B
182529cowo
often no larger是个modifier，when引导的句子主干是flecks burn up while speeding，这里需要一个动词，而不是which引导的另一个modifier，否则句子不完整。当然which此处即使修饰，修饰的主体也不符合逻辑。
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2022-08-06 22:18:25
YvetteC
考察： 1. grains of sand or of pebbles, burn up speeding= grains of sand and 【grains of pebbles】❌ 2. which引导定语从句，定语从句=形容词从句，modify先行词+which紧挨着出现，但是这里which不是修饰sand是pebbles ❌ 3. tiny flecks作主语，主谓一致，复数
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2022-07-18 08:39:52
1359831vkgjh
首先从语义就能看出来后面的burn up和speed是在修饰流星和天体碎屑的，并不是沙砾和鹅卵石，所以which的全部错误；E主谓不一致，复数名词用单数；burn up和speeding是两个后置修饰中间要有连接词，while可以表示燃烧的时候加速这个情况，B正确
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2021-10-18 09:43:31
皮卡qiu
这里不知道sand 和pebbles是否平行（无法判断，都有对的可能性），也应该从后面入手， while是一定要的，否则句意不通
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2019-04-12 16:05:43
Kath1230
Meteor showers and individual streaks of light 【that flash across the sky every night】【 are generated】 when 【tiny flecks of celestial detritus】, often no larger than grains of sand or of pebbles, 【burn up】 speeding through the atmosphere. 先找句子主谓啊 when引导状语从句，肯定后面要有谓语啊 CD排除 前面主语是复数 所以要用burn E排除 or of pebbles和burn up speeding用法很奇怪 排除A
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2019-02-03 02:17:56
橙汁儿
请问一下大家 后半句的谓语动词为什么是复数啊？
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2018-04-23 17:01:36
默默回复橙汁儿
因为对应的主语是flecks
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2018-05-15 19:44:26
Johnny97
a错在grain不能用来修饰pebble，grain是微粒
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2017-11-12 20:22:29
默默回复Johnny97
grain of sand是沙子的颗粒，是沙粒，pebble是卵石，没有说卵石的颗粒的
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2018-04-19 02:13:47
默默回复Johnny97
pebble 与 grain of sand是一个属性
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2018-05-15 19:45:14
KerrLiu回复 默默
大神牛逼，几乎每道题都看得到你
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2018-10-29 23:42:23
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句子改错SC
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