科学安排、合理利用，在这有限的时间内中等以上的学生成绩就会有明显的提高，部分学生成绩还会出现质的飞跃。为了复习工作能够科学有效，为了做好中考复习工作全面迎接中考，下文为各位考生准备了中考英语重点考点。

Since 用来说明动作起始时间，for用来说明动作延续时间长度。例如：

I have lived here for more than twenty years.我住在这儿二十多年了。

I have lived here since I was born. 我从出生起就住在这儿了。

注意：并非有for 作为时间状语的句子都用现在完成时。

I worked here for more than twenty years. (我现在已不在这里工作。)

I have worked here for many years.(现在我仍在这里工作。)

注意：用句型转换的方法，很容易排除非延续动词在有for/since结构的完成时中的误用。

1)(对) Tom has studied Russian for three years. = Tom began to study Russian three years ago, and is still studying it now.

2)(错) Harry has got married for six years. = Harry began to get married six years ago, and is still getting married now.

显然，第二句不对，它应改为 Harry got married six years ago. 或 Harry has been married for six years.

希望为大家提供的中考英语重点考点的内容，能够对大家有用，更多相关内容，请及时关注!

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