状语从句“四要点”

学习了状语从句，大家在理解和运用时应注意以下几点：

一、时间状语从句（由when,before, after等连词引导）及条件状语从句（由if,unless等连词引导）中的谓语动

词，须用一般现在时代替一般将来时。例如：

1.如果明天不下雨，我们就去参观长城。

[误]If it won’t be rain tomorrow, we’ll go to visit the Great Wall.

[正] If it doesn’t rain tomorrow, we’ll go to visit the Great Wall.

2.我一到北京就给你写信。

[误]I will write to you as soon as I will get to Beijing.

[正] I will write to you as soon as I get to Beijing.

二、从属连词because(因为)与并列连词so (所以)不能同时出现在一个句子中，只能用其中之一。例如：

1.因为她病了，所以没有来上学。

[误]Because she was ill, so she didn’t come to school.

[正] Because she was ill, she didn’t come to school.

[正] She was ill, so she didn’t come to school.

2.因为本学期我是新老师，所以不知道你们大家的名字。

[误]Because I’m your new teacher this term, so I don’t know all your names.

[正]Because I’m your new teacher this term, I don’t know all your names.

[正]I’m your new teacher this term, so I don’t know all your names.

温馨提示：类似的用法还有though(虽然)与but(但是)也不能同时出现在一个句子中。例如：

虽然他很用功，但他考试成绩还是不好。

[误]Though he studied very hard, but he didn’t get good marks in the exam.

[正] Though he studied very hard, he didn’t get good marks in the exam.

三、由than引导的比较状语从句所表示的范围不能把主句所表示的比较对象也包括进去。例如：

玛丽比班上其他同学都高。

[误]Mary is taller than any student in her class.

[误] Mary is taller than any other students in her class.

[正] Mary is taller than any other student in her class.

四、由of引导的比较范围与句子的主语包含在同一个概念范围内；而in则用于另一概念范围。例如：

他在班里年龄最小。

[误]He is the youngest of his class.

[正] He is the youngest in his class.

你想准确运用上述状语从句的四要点吗？那就请记住下面的顺口溜：

时间／条件从句，将来时态切忌；

连词“因为”“所以”，不能用在一起；

两者之间相比，范围各自独立；

三者以上相比，of短语含主语。