一般现在时:
1、表示经常发生或是反复发生的动作或存在的状态:常和always, usually, often, sometimes, every day, every week等时间状语连用。
例:She visits her parents every day. 她每天去看她的父母。
2、表示普遍的、永恒的真理。由于是众所周知的客观事实,所以一般不用时间状语。
例:The moon goes round the earth. 月亮围绕地球转。
例:Summer follows spring. 春天之后是夏天。
3、一般现在时常可表示按规定、时间表、计划或安排要发生的事情,通常都有一个表示未 来时间的状语……
例:The show begins at seven and ends at ten. 表演起点开始,十点结束。
另外在时间或条件从句中,一般只能用一般现在时表示将来的动作
例:Turn off the lights before you leave. 走前关灯。
4、在少数情况下,已发生的动作也可以用一般现在时来表示,但只限于少量动词,如hear, say, tell等。
例:I hear you're moving. 听说你要搬家了。
They tell me it's a fascinating film. 他们告诉我这是一部迷人的影片。
往年试题:
例(1)"When are you going to visit your uncle in Chicago?"
"As soon as ______ our work for tomorrow."
A. we're complete B. we'd complete C. we'll complete D. we complete
答案:D
例(2)They will go home for winter vocation as soon as they ________their exams.
A. have finished B. finish C. finished D. was finishing
答案:B
例(3)When the mixture ______, it will give off a powerful force.
A. will heat B. will be heated C. is heated D. has heated
答案:C