A 表示动作现在正在发生或进行:
It is raining.
下雨了。
I am not wearing a coat as it isnt cold.
天气不冷,我没穿外衣。
Why are you sitting at my desk?
你为什么坐在我的桌前?
Whats the baby doing?
Hes tearing up a £5 note.
宝宝在干嘛?
他在撕一张面值五英镑的钞票。
B 表示现阶段正在进行的动作,但说话时该动作并不一定正在进行:
I am reading a play by Shaw.
我正在读一本由萧伯纳写的剧本。(这可以指说话的那一时刻,也可指更一般意义的现在。)
He is teaching French and learning Greek.
他在教法语,又在学希腊语。(在说话的那一时刻,他可能既不在教也不在学。)
如上述例句中一样,两个进行时态的动词为一个主语并由and连接在一起时,第二个动词前的助动词可以省略。这适用于所有的动词复合时态中:
She was knitting and listening to the radio.
她一边编织一边听收音机。
C 表示最近的将来已定的安排(这是用于表示眼前打算的最普通的说法):
Im meeting Peter tonight.He is taking me to the theatre.
今天晚上我要跟彼得会面。他要带我去看戏。
Are you doing anything tomorrow afternoon?
Yes,Im playing tennis with Ann。
你明天下午有事吗?
有,我要跟安打网球。
注意:一定要指出动作的时间,否则可能把现在与将来两种含义弄混。但come和go可以这样用而无需指出时间。
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