题目内容
19．Jim has finished his work in his mother's home．（改为一般疑问句）Has Jim finished his work in his mother's home？．分析 吉姆已经在他妈妈家里完成了作业．
吉姆已经在他妈妈家里完成作业了吗？
解答 答案：Has Jim finished his work in his mother's home？
这是一个现在完成时的句子，句子中的has是助动词，含有现在完成时的句子变一般疑问句时，把have/has提前就可以，故答案应为Has Jim finished his work in his mother's home？
点评 含有be动词/情态动词/助动词的陈述句变一般疑问句，通常把be动词/情态动词/助动词提到主语前面
如果句子的谓语动词是行为动词，变一般疑问句需要借助于助动词do，does或did来构成，句型为：Do/Does/Did+主语+动词原形+其他．
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