练习册

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    过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作.常和表过去的时间状语连用.如: I was doing my homework at this time yesterday.昨天的这个时候我正在做作业. They were waiting for you yesterday.他们昨天一直在等你. 过去进行时的构成: 肯定形式:主语+was/were+V-ing 否定形式:主语+was not /were not +V-ing 疑问形式:Was/Were+主语+V-ing. 基本用法:1.过去进行时表示过去某一段时间或某一时刻正在进行的动作.常与之连用的时间状语有.at that time/moment, (at) this time yesterday (last night/Sunday/week-), at+点钟+yesterday .when sb. did sth等时间状语从句.如: What were you doing at 7p.m. yesterday?昨天晚上七点你在干什么? I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽是在三年前.当时她在一家无线电商店工作. I was cooking when she knocked at the door.她敲门时我正在做饭. 【查看更多】

     

    题目列表(包括答案和解析)

    姚明在某段时间内进行定点投篮训练，其成绩如下表：
    投篮次数
    		10
    		100
    		10000
    投中次数
    		9
    		89
    		9012
    试估计姚明在这段时间内定点投篮投中的概率是       （精确到0.1）.

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    书面表达：

    　　每个人都有自己的梦想，而不同的时期可能会有不同的梦想，人人都在为实现自己的梦想而奋斗，你也不例外．请根据要求并参考下面的提示，以“My Dreams”为题写一篇70~100个单词的英语短文．

    　　要求：①必须告诉大家你为实现梦想做了些什么(in the past)正在做什么(now)并且打算怎么做(in the future)，即要在文中用上一般过去时、现在进行时（现在完成时）与一般将来时等．

    　　②提示词没有先后顺序，也可以根据你自己的实际情况，酌情增添或删减．

    　　③文中不得出现真实姓名、校名以及能够透露出你个人身份的相关信息．

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    按给出的要求变换下列句子，要求每空限填一词。
    1. She has a nice watch. (改为复数形式)
        ________ have some ________.
    2. Nat went to a movie yesterday. (对划线部分提问)
        ________ did Nat ________ yesterday?
    3. Jack did his homework last night. (变为否定句)
        Jack ________ ________ his homework last night.
    4. Jim has breakfast at six in the morning. (改为现在进行时)
        Jim ________ ________ breakfast now.
    5. They often go to the beautiful beach. (用last year改为一般过去时)
        They ________ ________ to the beautiful beach last year.

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    按给出的要求转换下列句子，每空限填一词。
    1. I have a pain in my head. (改为同义句)
        I have _________ _________.
    2.You'd better go home at once. (改为否定句)
        You'd _________ _________ go home at one.
    3. I used to swim in the river near my home. (改为一般疑问句)
       _________ you_________ to swim in the river near your home?
    4. The pictures are very beautiful. (改为感叹句)
        ________ _________ the pictures are!
    5. Seth played on the computer last Sunday. (改为过去进行时)
        Seth _________ _________ on the computer at 8:00 last Sunday.

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