时态
Snip20180721_20.png现在完成时态与情态动词的结合
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can/could/may/might/must have done 表示推测
someone must have opened the cage(笼子). The lion couldn't have escaped on its own
肯定有人打开了笼子,否则狮子不会自己逃走的。 -
could/might/ought to/should have done : 表示与过去事实相反(主要考点)
In my view,the accident could/might have been prevented;
-> In relity , the accident was not prevented;
used to do/be used to doing/ be used to do区分
- used to do : 过去常常做某事(暗含了现在不再这样做了)
- be used to doing :习惯于做某事[be accustomed to doing ]
- be used to do : (被动语态)被用来做....
被动语态
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被动语态的构成:be + done(+ by sth./sb.————动作的发出者)
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被动语态与时态相结合
- 被动语态的将来时: will be done
- 被动语态的现在完成时: have been done
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理解: .... 被 ....
The 29th Olympic Games was held[hold的过去分词] in Beijing in the year of 2008(by Chinese people).
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语态的特殊用法(写作加分)
- 静态动词往往采用主动表被动
静态动词即表示静止状态的动词,如:have(有),own(拥有),belong(属于),exist(存在),hold(容纳),stand(站立)
例:山上有座庙 A temple stands on the hill.
2.“感官动词+a.” : 主动表被动
look(看起来),smell(闻起来),sound(听起来),feel(感觉起来),taste(尝起来)
例: this proposal(提议) sounds very attractive.
寺庙/和提议都不能主动发生,所以采用静态动词进行主动表被动
vi和vt的区别
- vi 不及物动词 后面不能带宾语
He died.
- vt 及物动词 后面直接接宾语
Someone hit me.
英语的基本句型主要有五种
1、主语—系—表
2、主语—谓(vi.)
3、主语—谓—宾
4、主语—谓—宾—宾
5、主语-谓—宾—补语
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