Whom can tell me English grammar?

来源:百度知道 编辑:UC知道 时间:2024/06/18 13:18:50
英语的各种时态``各种时态的重点语法掌握``急需``请帮忙`~~
有悬赏``

还是自己找本语法书看吧

You should say " Who can tell me English grammar?"
英语的时态是靠动词的变化和时间状语来表达的。英语中的时态共有十六种,但是常考的或较常用的只有8种,而且重点测试完成时态。 要掌握英语的时态和语态,必须掌握好英语中的助动词(do, be, have)和时间状语这两个核心问题。
1、一般现在时
主要用来表示人、事物的现在状况和特点;表示经常或习惯性的动作,句子中常有often, always, from time to time 等时间状语; 表示客观规律和永恒真理等。
He usually goes to work at 7 o’clock every morning.
She has a brother who lives in New York.
The earth goes around the sun.
Guangzhou is situated in the south of China.
考点一:表示永恒的真理,即使出现在过去的语境中,仍用一般现在时。如:
I learned that the earth goes around the sun when I was in primary school.
考点二:在时间和条件状语从句中,代替一般将来时;常用的引导词有:
时间:when, until, after, before, as soon as, once, the moment/the minute, the day; 条件:if, unless, provided.
If he accepts the job, he will get more money soon.
考点三:在make sure (certain), see to it, mind, care, matter +宾语从句, 从句用一般现在时代替一般将来时。
So long as he works hard, I don’