Do you know when basketball ?( )A．is inventedB．was inventedC．has inventedD．had invented 题目和参考答案——青夏教育精英家教网—

题目内容

11．Do you know when basketball ？（　　）

A．

is invented

B．

was invented

C．

has invented

D．

had invented

分析你知道篮球是什么时候发明的吗？

解答答案：B．
首先根据语境推测句意是"你知道篮球是什么时候发明的吗？"，由于句子表述的是发生在过去的事情，判断句子中的谓语动词用一般过去时，主语 basketball 是动作invent 的承受者，所以用被动语态，一般过去时被动语态的构成是：主语+was/were+动词的过去分词，故选B．

点评本题考查时态和语态．每个时态都有标志词，熟记这些标志词是做题的关键．在没有时间状语的情况下可以根据语境来对时态做出判断．判断语态的关键则是观察主语是谓语动词的执行者还是承受者．

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