摘要: until 意为“直到--时 .引导时间状语从句时.表示主句的动作发生在从句的动作之前.当主句的谓语动词是持续性动词时.主句常用肯定形式,当主句的谓语动词是非持续性动词时.从句常用否定形式, not... until... 意为“直到--才-- .这时的until可以用before 来替换.例如: I'll stay here until you come back. 我会呆在这里.直到你回来.(stay表示的动作可以持续) He didn't go to bed until he finished his homework.他直到做完作业才睡觉.(go to bed 表示的动作不能持续)

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阅读理解。
    Never try to work when you are very hungry. If you want to do your homework right after school, you
may want to eat something before getting to work. ①Always do your homework before you get too tired.
Don't wait till very late in the evening, or your homework will seem much harder than it really is. If you
have more than an hour's work, you should give yourself ②a break after an hour. On the other hand, ③you
should work at least half an hour at a time without stopping.

    Don't put it off (推迟) until the last minute. If you put off doing your homework, you will have it on your
mind, and you won't enjoy your free time so much. If you put it off until the end of a week or until right
before a test, you will have too much to do. A little each night, enough to keep up with (跟上) what is
happening each day in school, will take the fear out of tests and keep you on top of it.
    ④每天在同一个时间做作业. This will help you make it a habit. It will make part of your daily work
easier to do, and it will make your free time more enjoyable as well.
1. 改写①句且句意不变。________ you get too tired, you should ________ doing your homework.
2. ②处的a break意为 __________。 
    A. a sleep 
    B. a rest
    C. an idea
    D. a moment
3. 请将短文的③句翻译成中文。
    ______________________________________________________________
4. 请将短文的④句翻译成英文。
    ______________________________________________________________
5. According to the passage, when you have homework to do, you should _______. (可选多个答案).
    A. not put off doing your homework
    B. do your homework at the same time every day
    C. eat something to keep yourself not hungry
    D. have a short break after working for half an hour
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