时态与语态综合练习.doc

时态与语态综合练习三 体 时 一般 进行 完成 完成进行 现在 过去 将来 过去将来 一般现在时的用法 1) 用在以（if , unless, before, as soon as , when , once, the more….., the more….. )引导的时间和条件状语从句中表将来 I’ll participate in the game if it (not rain). I’ll let him know as soon as he (come). The more he studies hard, the more progress he (make). 有时为了强调动作的完成，有些动词也可用现在完成时。 Don’t get off the bus until it (stop). When you (finish) your homework, you can play for a while. 2)根据时刻表的安排将要发生的事件，日程一般不可变更，语气比较肯定，常用的动词有：arrive , leave, come, go , open, close, return, start, begin, end, stop等。 The trains arrives at 18:40. The shop opens at 8 a.m and closes at 11.pm. 3)以 here 或 there 开头的句子，说明正在发生的动作，谓语动词不用现在进行时，而用一般现在时。 Get it ready. Here (come) a bus. Look ! There (fly) a kite in the sky. 4) Make sure ,see to it that ， be sure , take care , make certain ,后接从句，常用一般现在时代替将来时。 Make sure all the windows (close) before you leave. Be sure you (finish) it today. See to it that the door (lock) before you go out. 一般将来时 1) be doing，表计划的将来，但语气不及一般现在时肯定，安排可以变更，常用动词有：go, come, leave, arrive等。 He (leave) for America on business next month. 2) be going to do，表示将来。 a.主语的打算、意图，即将做某事。 What you (do) tomorrow? b. 表示“预测”，说明有迹象要发生的事 Look at the dark clouds, there (be) a storm. 3) be to do表将来，按计划或正式安排将发生的事，或表示要求、命令做某事,在if引导的条件从句中，表示一种愿望。We (discuss) the report next Saturday. You (finish) the work by Friday. If you (succeed), you must work hard. 4) be about to do，意为马上做某事。　He (leave) for Beijing. 注意：be about to 不能与tomorrow, next week 等表示明确将来时的时间状语连用。 be going to / will?的区别： ▲ 用于条件句时，be going to表将来 , will表意愿 If you (make) a journey, youd better get ready for it as soon as possible. Now if you (take) off your clothes, we will fit the new clothes on you in front of the mirror. be to和be go