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I.动词的时态:
1. 动词的时态一共有16种,以ask为例,将其各种时态的构成形式列表如下:
现在时 | 过去时 | 将来时 | 过去将来时 | |
一般 | ask / asks | asked | shall/will ask | should/would ask |
进行 | am/is/are asking | was/were asking | shall/will be asking | should/would be asking |
完成 | have/has asked | had asked | shall/will have asked | should/would have asked |
完成进行 | have/has been asking | had been asking | shall/will have been asking | should/would have been asking |
2. 现在完成时与一般过去时的区别:
1) 现在完成时表示过去发生的动作或存在的状况,但和现在有联系,强调的是对现在造成的影响或结果,它不能同表示过去的时间状语连用,汉译英时可加“已经”等词。简言之,利用过去,说明现在。如:
I have already read the novel written by the world-famous writer. (已经看过,且了解这本书的内容)
2) 一般过去时只表示过去发生的动作或状态,和现在无关,它可和表示过去的时间状语连用,汉译英时可加“过”,“了”等词。简言之,仅谈过去,不关现在。如:
I read the novel last month. (只说明上个月看了,不涉及现在是否记住)
I lived in Beijing for ten years.(只说明在北京住过十年,与现在无关)
3. 现在完成时与现在完成进行时的区别:
两者都可以表示“从过去开始一直持续到现在”,在含义上如着重表示动作的结果时,多用现在完成时,如着重表示动作一直在进行,即动作的延续性时,则多用现在完成进行时。一般不能用于进行时的动词也不能用于现在完成进行时。
I have read that book.我读过那本书了。
I have been reading that book all the morning. 我早上一直在读那本书。
4. 一般将来时的表达方式:
将来时 | 用法 | 例句 | |
1 | will/shall+动词原形 | 表示将来发生的动作或存在的状态 | My sister will be ten next year. |
2 | be going to+动词原形 | 含有“打算,计划,即将”做某事,或表示很有可能要发生某事 | It’s going to clear up. |
3 | be + doing 进行时表示将来 | go, come, start, move, leave, arrive等词可用进行时表示按计划即将发生的动作 | He is moving to the south. |
4 | be about to + 动词原形 | 表示安排或计划中的马上就要发生的动作,后面一般不跟时间状语 | I was about to leave when the bell rang. |
5 | be to + 动词原形 | 表示按计划进行或征求对方意见 | We’re to meet at the school gate at noon. |
6 | 一般现在时表示将来 | 时刻表上或日程安排上早就定好的事情,可用一般现在时表示将来 | The meeting starts at five o’clock. |
II. 动词的被动语态:
常用被动语态 | 构成 | 常用被动语态 | 构成 | ||
1 | 一般现在时 | am/is/are asked | 6 | 过去进行时 | was/were being asked |
2 | 一般过去时 | was/were asked | 7 | 现在完成时 | have/has been asked |
3 | 一般将来时 | shall/will be asked | 8 | 过去完成时 | had been asked |
4 | 过去将来时 | should/would be asked | 9 | 将来完成时 | will/would have been asked |
5 | 现在进行时 | am/is/are being asked | 10 | 含有情态动词的 | can/must/may be asked |
注 意 事 项 | 被动语态的否定式是在第一个助动词或情态动词后加not,短语动词的被动态不可漏掉其中介副词。固定结构be | ||||
汉语有一类句子不出现主语,在英语中一般可用被动结构表示。如: | |||||
下面主动形式常表示被动意义:如: | |||||
下面词或短语没有被动态: |