初中英语语法专练：一般现在时代替将来时

　　时光状语从句，前提句中，从句用一般现在时代替将来时的初中英语语法专练的语法点：

　　When, while, before, after, till, once, as soon as, so long as, by the time, if, in case (that), unless, even if, whether, the moment, the minute, the day, the year, immediately 内容来自

　　He is going to visit her aunt the day he arrives in Beijing. 他一到北京，就去看他姨妈。

　　典型初中英语语法专练例题

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　　(1)He said he________me a present unless I_______ in doing the experiment. CopyRight .com

　　A. had not given; had not succeeded　　B. would not give; succeed

　　C. will not give; succeed　　　　　　 D. would not give; will succeed. CopyRight .com

　　答案B. 在时间，条件或让步主语从句中一般不用将来时。本题有He said，故为过去式。主句用将来时，故选B. 此处用个别从前式代替了从前将来时。

　　(2) 表示当初已安排好的未来事项，行程等活动的初中英语语法专练例句：

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　　The museum opens at ten tomorrow.　博物馆明天将来10点开门。(实际上每天如此。)