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中考语法考前专项练习，适合广大中学生用。 一、动词的时态和语态 1. 动词基本时态及其用法 (一) 一般现在时的特殊用法 1. 表示真理或经常性的动作。 The secretary said that she always leaves as soon as her boss goes home.(宾语从句说的是习惯) 2. 表示预先安排好，将要发生的事情。 The train leaves in half an hour. 3. 用于时间和条件状语从句中，一般现在时代替将来时。 I won’t go to his birthday party unless he invites me. (二)现在进行时的特殊用法 1. 表示将来计划要做的事情。 Professor Smith is entertaining his students this Sunday. 2. 现在进行时与always，constantly，forever等连用。表示意想不到或使人烦恼的事情。 She is always borrowing money and forgetting to pay you back. | 
