请教一道OG19的题目

日常奇缘700 · 发表于 2018-11-4 13:39:55

Travelers from Earth to Mars would have to endure low levels of gravity for long periods of time, avoiding large doses of radiation, plus contending with the chemically reactive Martian soil, and perhaps even ward off contamination by Martian life-forms.

AMars would have to endure low levels of gravity for long periods of time, avoiding large doses of radiation, plus contending 分析该选项
BMars would have to endure low levels of gravity for long periods of time, avoid large doses of radiation, contend 分析该选项
CMars, having to endure low levels of gravity for long periods of time, would also have to avoid large doses of radiation, plus contending 分析该选项
DMars, having to endure low levels of gravity for long periods of time, avoid large doses of radiation, plus contend 分析该选项
EMars, who would have to endure low levels of gravity for long periods of time avoid large doses of radiation, contend with
答案是B
主要是对OG上的解释不太理解
DE的解释上This is not a valid sentence since it lacks an independent clause,
求大腿解释！谢谢

几许VV · 发表于 2018-11-4 14:20:46

就是没谓语的意思，只有Travelers和它的modifiers

日常奇缘700 · 发表于 2018-11-4 14:48:17

几许VV 发表于 2018-11-4 14:20
就是没谓语的意思，只有Travelers和它的modifiers

D后面的avoid不是谓语吗

几许VV · 发表于 2018-11-4 15:41:49

endure, avoid, contend, ward 并列跟在having后面，一起做traveler的修饰。

另外用having做修饰本来就不优，而且D里的plus非常莫名其妙，最后一个动作前面加and就行了

几许VV · 发表于 2018-11-4 15:43:23

你非要把avoid理解成谓语也可以，但是这样的话endure, avoid, contend, ward四个本应并列的动词就被拆开了，还是错的

fuckoffand · 发表于 2018-11-4 16:31:18

D 选项的having...那一串是modifier，去掉以后变成，travellers from earth to mars avoid large dose of..., plus contend...plus用法和and一样，要链接两个独立的句子， e.g. she hates medicines, plus she doesn't want to go to hospital.

E选项是中间的modifier有问题，who would have to endure low levels of gravity for long periods of time avoid large doses of radiation，同时存在两个working verbs，错

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