一道英语选择题acars do cause us some health problems ---in fact far

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/09/21 07:10:03

一道英语选择题a
cars do cause us some health problems ---in fact far more serious ---than mobile phones do.
a,one b,ones c,it d,those

选B
A 答案指代单数可数名词,可排除
C 答案指代单数可数或不可数名词,可排除
B D答案都可以用来指代可数名词的复数,但是：ones为泛指 ,即相当于这题的problems ,those 为特指, 相当于the +ones /the ＋名词,即相当于这题里的the problems.
1、这个句省略了好多东西,补全： cars do （确实）cause us some health problems ---in fact （cars curse us ）far more serious （problems ）---than mobile phones do.
2、把补全了的括号里的problems 用ones 代替,答案就出来了,实际上它在这里确实表示泛指,而不是特指的problems .
3、比较一下：The cars made in Japan are much cheaper than those made in Europe.(those 特指欧洲生产的cars,换成the cars也行）
望采纳,谢谢!

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