My father lunch at home.but my mother ．( )A．doesn't have, hasB．haven't, haveC．don't have, haveD．doesn't have, does 题目和参考答案——青夏教育精英家教网—

题目内容

2．My father ________ lunch at home，but my mother ________．（　　）

	A．	doesn't have； has		B．	haven't； have
	C．	don't have； have		D．	doesn't have； does

分析我爸爸不在家吃午饭，但我妈妈在．

解答答案：D．考查否定句．句意"我爸爸不在家吃午饭，但我妈妈在．"．第一个空，主语是father单数，一般现在时态，含有实义动词，否定句在实义动词前加doesn't，实义动词用原形，因此B，C不正确．第二个空，用助动词does，代替has lunch at home．因此A不正确．答案是D．

点评考查否定句．通常是在be动词，情态动词后加not．一般现在时态，主语不是第三人称单数用don't，主语是第三人称单数用doesn't．一般过去时态用didn't．还有其它用法需要牢记．

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