22.一般现在时的特殊用法 <例句> I am busy all day tomorrow. 我明天整天都忙。 <语法分析> 当be表示根据时间或事先安排肯定会出现的状态时,一般现在时可代替将来时态,在以下情况如在时间状语或条件状语从句中,在主句的谓语动词是将来时的定语从句和宾语从句中,在表示比较结构中的比较状语从句中,一般现在时可代替将来时态。在here和there引导的句中,常用一般现在时代替现在进行时态。 <触类旁通> (1) Tell him about that when he comes. 他来时把那件事请告诉他。 语法分析:在时间状语从句中,一般现在时可代替将来时态。 (2) I'll stay with you so long as there is a room free. 只要有空房,我就和你住一起。 语法分析:在条件状语从句中,一般现在时可代替将来时态。 (3) Look, here comes your sister. 看,你姐姐来了。 语法分析:在here引导的句子中,常用一般现在时代替现在进行时态。 (4) There goes the bell. 打铃了。 语法分析:在there引导的句中,常用一般现在时代替现在进行时态。 (5) The first person who opens that door will get a shock. 第一个开门的人会大吃一惊的。 语法分析:在主句的谓语动词是将来时的定语从句和宾语从中,will不可省略。 <巩固练习> (1) Her daughter won't go to bed until she ____[finish] her lesson. (2) I'll write to your mother if you _____[be] not here on time tomorrow. (3) They'll have an outing at the seaside if the weather _____[permit]. (4) If she won't arrive before eight, there _____[be] no point in ordering dinner for her. (5) If they are burned, they ____[give] off poisinous gases. (6) When _____ our school begin? (7) My brother's birthday _____ in three weeks' time. (8) It _____ Sunday tomorrow, you know. (9) There _____[go] the last bus. <参考答案> (1) finishes (2) are (3) permits (4) is (5) give (6) does (7) is (8) is (9) goes Tags:高中英语,语法,一般,在时,特殊 |
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