题目内容
Why ______ your brother often _______ the museum ?
A. do , visit B. do, visits C. does, visit
C
【解析】
试题分析:句意:你的哥哥为什么经常参观这家博物馆? 在一般现在时态中,谓语动词若为行为动词,其一般疑问句要借助于do和does来构成,同时行为动词变为原形。本句中主语your brother是单数第三人称,故助动词用does,选C。
考点:主谓一致
点评:一般现在时态中,当主语是单数第三人称时,谓语动词用单数形式,其他人称,谓语动词用原形。若谓语动词若为行为动词,其否定式和疑问句要借助于助动词do和does来构成,并且将行为动词还原为动词原形。当主语是单数第三人称时,助动词用does。
John is a famous writer now. Bob said he was not a good student ___41_____ he was young. He was often late for____42___ and didn’t like doing his homework. Sometimes, he ______43____ in class while the teacher was teaching. He didn’t understand much, ____44____but he always thought he understood everything. One day the teacher _____45___ the students a question, “When Jack was ten years old, _____46____ brother Ben was twenty. Jack is fifteen now and _____47___ is his brother Ben? John said, “That’s easy. Ben is twice as old as Jack, so he is thirty now.”
Another time, the ____48_____ in a science class asked, “When it thunders(打雷), _______49___ do we always see the light before we hear the sound?”
“But, Miss,” said John quickly, “don’t you ___50_____ our eyes are in front of our ears?”
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