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1.The children are listening to a CD. (...

 

1.The children are listening to a CD. (对画线部分提问)

______ ______ the children ______?

2.He plays the piano every Saturday. (now 改写句子)

He ______ ______ the piano now.

3.Is she talking to Tom? (作否定回答)

______, she ______.

4.His parents are talking with the teachers. (改为一般疑问句)

______ his parents ______ with the teachers?

5.Jacky and Tommy are cleaning the classroom. (改为否定句)

Jacky and Tommy ______ ______ cleaning the classroom.

 

1.What aredoing 2.isplaying 3.Noisn’t 4.Aretalking 5.arenot 【解析】 1.句意:孩子们正在听唱片。对动词词组listen to music提问选择疑问词What,就画线部分提问上下时态不能发生变化,应用进行时态来完成,故答案为What are doing。 2.句意:他每星期六弹钢琴。now是现在进行时态的标志,用now改写句子,也就是把原来的一般现在时态用进行时态替换,故答案为is playing。 点睛:在完成时态替换的句子中,不管原句是什么时态,首先要把原来的谓语动词恢复到原形,然后把动词套用到需要转换成的新时态中,本题原句的动词词组为play the piano,需要转化成的时态为现在进行时态,其构成为am/is/are+ doing,此句的主语为He,故答案为is playing。 3.句意:她在和汤姆说话吗?含有现在进行时态的一般疑问句在做出肯定,否定回答时,助动词is/are要保留,否定回答用No, is也应该用否定形式,故答案为No, isn’t。 4.句意:他的父母正在和老师谈话。现在进行时态的构成为助动词am/is/are+ doing,变一般疑问句时只把助动词提前即可,故答案为Are talking。 5.句意:杰克和汤米正在打扫教室。含有现在进行时态的句子变否定句时,只在助动词am/is/are后加not,其余不变。故答案为are not。
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