IsBobswimming now? 题目和参考答案——青夏教育精英家教网—

7．IsBobswimming（swim） now？

分析 Bob现在在游泳吗？

解答答案是Is，swimming．
本题考查语境中选用所给词的恰当形式；由题干中的now判断句中需要现在进行时"am/is/are+doing"，Bob为第三人称单数，选用is；现在进行时的一般疑问句是将am/is/are 提到句首；故答案是Is，swimming．

点评本题是要求用所给动词的适当形式填空，解题时首先考虑句中需要的是谓语动词还是非谓语动词；其次，如果是谓语动词关注时态、语态和数的变化；如果是非谓语动词要联系非谓语的基本用法判断非谓语的形式．

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