按要求完成句子【1】Students can run and talk loudly in the hallways.(改为否定句)Students ____ run ____ talk loudly in the hallways.【2】Maria has to practice the piano on Sundays.(改为一般疑问句)____ Maria ____ ____ practice the piano on Sundays?【3】You can't eat in the classroom.(改为否定祈使句)____ ____ in the classroom.【4】You must look after your sister.(改为同义句)You ____ ____ look after your sister.【5】They have to clean_the_classroom every day.(对画线部分提问)____ ____ they have to ____ every day?
答案:【答案】【1】 can't or 【2】 Does have to 【3】 Don't eat 【4】 have to 【5】 What do do 【解析】【1】句意:学生们可以在走廊里跑来跑去大声说话。原句含有情态动词,情态可做助动词,其否定式为can't;肯定句连词用and,否定句的连词用or;故答案为can't;or。【2】句意:玛丽亚星期天必须练习钢琴。原句是一般现在时单三形式,所以,改为一般疑问句,助动词用does,does之后动词要恢复原形;故答案为Does;have; to。【3】句意:你不能在教室里吃东西。原句是情态动词的否定式,表示“不许做某事”,改为祈使句的否定句,表示“禁止做某事”,以“don’t+动词原形”开头;故答案为Don't;eat。【4】句意:你必须照顾你妹妹。表达“某件事必须或必须要做时”,使用“must”和“have to”; must是情态动词动词,意为“必须”,have to意为“不得不”,有行为动词的具有时态和人称的变化;句子是一般现在时,主语是第二人称,故答案为have;to。【5】句意:他们每天得打扫教室。画线部分clean the classroom是句子的谓语动词,由此判断疑问词用what…do…;原句是一般现在时,主语they是复数形式,所以助动词用do;故答案为What;do;do。解答小题1要注意肯定句连词用and,改为否定句,连词要用or;小题2要注意一般现在时主语是单三,助动词用does,does后面动词要恢复原形。