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改错:When he worked as a journalist, he visited many countries

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/07/18 07:35:07
改错:When he worked as a journalist, he visited many countries. 为什么when改成while?
While he went to Hong Kong, he sang with Jackie Chan. 为什么把While改成when?
这里就是考察动作的延续与否和先后了
when可以接延续和非延续动作,但是while后面跟延续性动词
when从句的谓语动词可以在主句谓语动作之前、之后或同时发生;while和as从句的谓语动作必须是和主句谓语动作同时发生
(具体参见下面的参考资料)