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While they remove carbon dioxide from the air, conserve soil and water, and house thousands of species, forests also supply potentially valuable pharmaceuticals, and, as sources of building material and firewood, that provide employment for millions worldwide.
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分析B选项
分析C选项
分析D选项
分析E选项
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句子结构: While they remove…, conserve…, and house…, forests also supply…, and,…, provide…
句中的as成分作为插入语修饰forests.
原句的意思为:森林一方面处理空气中的二氧化碳,保护水土并为上千种生物提供住处,另一方面提供了有潜在价值的药材并且,作为建筑材料和柴火的来源,为全球提供了上百万的工作岗位
(A) and that结构没有平行对象
(B) 去掉as后,后半句变为forest also supply… , and sources… are providers…意思变为:森林也提供了有潜在价值的药材,并且建筑材料和柴火的来源成为了全球上百万岗位的提供者. 改变了原句意思
(C) and, as sources of building…结构没有动词,跟also supply不平行
(D) 语法上sources of…和pharmaceuticals并列,改变了原句的意思
(E) 正确, forsts also supply…and provide…结构平行
499685skw
“as sources of building material and firewood”其实是一条插入语。
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2022-10-04 17:26:33
KEVIN PJ
forest 之间 provide 就好了，与前面supply平行，选e
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2022-06-22 16:38:44
168222e
that前面不能加逗号吧
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2021-06-10 18:30:33
284452gzyr
理解到底是哪几个动词平行
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2020-09-27 17:17:15
忐忑的小草
语意很重要，两件事情是并列的关系，不存在因果关系或解释关系
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2020-01-05 19:12:30
847716opn
D supply和provide不并列
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2019-10-04 20:54:09
丝瓜瓤
D不该加逗号吧
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2019-09-19 15:29:10
Lingnie
supply , and provide ","去哪里啦！
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2018-11-09 02:03:41
dtctyc回复Lingnie
, as sources of building material and firewood, provide。逗号在as之前，as....是修饰provide的状语
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2019-05-03 14:28:34
光辉女郎
拍手称快 并列 平行 supply 和privide平行
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2018-08-20 20:56:09
ninielisa
难道提供药材的时候就没有provide employment了吗
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2018-01-11 10:16:51
默默回复ninielisa
逗号之间为插入语
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2018-05-06 06:26:19
nicko回复ninielisa
应该也提供了吧，但是感觉 for providing 有点wordy 直接用providing 做伴随伴随状语多好
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2018-07-04 09:17:09
Gigi62500
划线部分本身就是可能有问题的，怎么确定 as是一定要有的？ 我的问题是： forests also supply potentially valuable pharmaceuticals and sources 这种选项为什么可以认为平行
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2017-12-05 20:58:49
Johnny97
当开头看到it they这种代词，但并没有出现可能的被代指名词时，可以看下一个分句的主语是什么
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2017-10-21 15:29:28
杀鸡大业
While they remove carbon dioxide from the air, conserve soil and water, and house thousands of species, forests also supply potentially valuable pharmaceuticals, and, as sources of building material and firewood, that provide employment for millions worldwide. E pharmaceuticals and, as sources of building material and firewood, provide 找主谓宾：S—森林，V supply and provide，O—一大坨 as是作为的意思，理解句意，关注平行。
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2017-10-08 09:30:24
Anna_lee
note：语义一致和平行
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2016-06-02 15:43:30
笑笑笑55
感谢楼上的解析
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2016-05-20 10:32:19
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句子改错SC
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