Now watch me, I switch on the current and stand back. 虽然now是进行时的标志,但表示正在进行的动作的客观状况,用一般现在时。
2. 一般现在时:通常用于表示现在时间的动作或状态
一般现在时表将来 1)以下动词come, go, arrive, leave, start, begin, return的一般现在时表
She will come to see you tomorrow. Flowers will die without water.(倾向性) I think she will be all right now.(推测性) She will come and work in this factory each day. How are you going to spend your weekend?(计划)
2)经常或习惯性的动作、能力,常和时间状语always, usually, sometimes, often等词连用。
I never drive in winter. He always goes to work by car.
3)表示格言警句: Pride goes before a fall. 骄兵必败
2)一般现在时用于说明事实;而现在进行时表示说话人的思想活动,带有感情 色彩(如厌烦、不满、赞赏等)。这时,现在进行时往往与always, continually, constantly, forever等表示“经常”的状语连用。 The boy always comes late. The boy is always coming late.
had done
have/has done
will/shall have done