每周一练：一般将来时

一般将来时结构+用法① “will/ shall + 动词原形”构成将来时，表示将要发生的动作或将要存在的状态。shall 仅用于第一人称 I/we 作主语，而 will 则用于各种人称。常用于将来时的时间状语有：next time, tomorrow, this afternoon, before long，in the future, soon, the day after tomorrow.例：I shall visit my teacher when I go to Beijing.② “be going to + 动词原形”，表示打算、计划、安排做某事。例：We are going to hold a sports meet next weekend. ③ begin, leave, arrive, start, finish, meet, return 等动词的一般现在时，表示按计划或安排将要发生的事。（时刻表）例：Flight 55 leaves at six p.m.④ leave, go, come, stay, do, take, have 等动词的现在进行时，表示按计划或准备要做某事。例：She is leaving early tomorrow morning. 明天她很早就出发。⑤ “be to + 动词原形”，表示即将发生某事、安排做某事或要求做某事。例：The meeting is to take place at 8:00 tomorrow.⑥ “be about + to+动词原形”，表示即将发生某事，不与具体的将来时间状语连用例：Hurry up! The train for Shanghai is about to start.注意：1. shall/will do 和 be going to do 的区别shall/will do 表示一种趋势或习惯性动作，或预言将要发生的事，或表示临时性打算等。Fish will die without water.(趋势)He will sit there doing nothing for hours.（习惯动作）We haven’t seen each other for a long time. Shall we have a dinner tonight?（临时性的打算）be going to do 表示提前计划、安排好的事情，或者表示有迹象发生We are going to have a meeting at 8:00 tomorrow.（计划、安排）Look at these clouds! It’s going to rain.（迹象发生事情）2. 一般现在时表将来和现在进行时表将来的区别一般现在时表示计划、安排将要发生事情的时候主语通常为物（火车、飞机等—时刻表，有具体的时刻）The train leaves Beijing at 7:00.现在进行时表示计划、安排将要发生事情的时候主语通常为人。They are having a meeting tonight.练一练1. 观察下列例句，将序号填入对应用法之后的空白栏中① If you are going to do it, you had better...