英语定从与同位区别 while的用法1.我上英语课时,老师说：在when,while,as等引导词引

英语定从与同位区别 while的用法1.我上英语课时,老师说：在when,while,as等引导词引

1,while一般是引导延续性动词的,至于你老师讲的,when比较常见些列如: I was doing my homework while my mother was washing.这表示我做作业和妈妈洗碗是同时进行的 2、你举的例子都是定语从句哦,因为后面的句子是起的修饰前面词的作用,具体来解释下：Life is a long race where we compete with others to go beyond ourselves生命是一个很长的竞赛,在这个竞赛里我们和那些与我们结伴前行的人进行比赛,如果改成简单句就会是：Life is a long race. we compete with others to go beyond ourselves in the race.所以你看出where的作用了把,当然你也可以说成Life is a long race in which we compete with others to go beyond ourselves.下一句：I still remember the day when I first came to Beijing. 我仍然能记得我第一次去北京是哪一天.如果改成简单句就会是：I still remember the day. I first came to Beijing on that day.当然你也可以说成I still remember the day on which I first came to Beijing.所以这不是同位语从句

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