内容正文:
2026最新三年级下册(译林版三起)句型转换专项练习
含详细解析及易错提醒
一、(肯定句 → 否定句)
1. ★ This is a rubber.
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2. ★★ They are pigs.
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3. ★★★ I can see a tiger in the zoo.
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二、(改为一般疑问句,并作肯定回答)
4. ★ That is a blue bird.
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肯定答:________________________________
5. ★★ You have a green pencil case.
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肯定答:________________________________
6. ★★★ The monkey can climb the tree.
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肯定答:________________________________
7. ★★ Emma likes peaches.
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肯定答:________________________________
三、(对划线部分提问)
8. ★ It is a ruler.
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9. ★★ I like bananas.
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10. ★★ The apple is on the desk.
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11. ★★★ There are five ducks on the farm.
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12. ★★★ Wang Jun is cleaning the blackboard.
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13. ★★ The orange is orange.
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四、(单数句变复数句)
14. ★ This is a peach.
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15. ★★ That is a big elephant.
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16. ★★★ The child is playing with a yellow ball.
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五、(改为一般疑问句,并作否定回答)
17. ★ Lucas has a new book.
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否定答:________________________________
18. ★★ These are sheep.
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否定答:________________________________
19. ★★★ Noah can swim in the pool.
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否定答:________________________________
20. ★★ Liu Yi likes mangoes.
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否定答:________________________________
21. ★★★ The dog is running now.
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否定答:________________________________
解析与学生常见错误提醒
1. 参考答案:This is not a rubber. / This isn't a rubber.
解析:含有be动词(is)的句子,变否定句直接在be动词后加not。
学生常见错误提醒:错误地写成“This not is a rubber.”(语序错误)或“This don't a rubber.”(误用助动词)。
2. 参考答案:They are not pigs. / They aren't pigs.
解析:含有be动词(are)的句子,变否定句直接在be动词后加not。
学生常见错误提醒:将“are not”错误地缩写为“are'nt”。
3. 参考答案:I cannot see a tiger in the zoo. / I can't see a tiger in the zoo.
解析:含有情态动词can的句子,变否定句直接在can后加not,可缩写为can't。
学生常见错误提醒:写成“I can not to see...”(多加了to)或“I no can see...”(语序和用词错误)。
4. 参考答案:问句:Is that a blue bird?
肯定答:Yes, it is.
解析:含有be动词(is)的陈述句变一般疑问句,将be动词(is)提前至句首。
学生常见错误提醒:忘记将be动词提前,或答语不简练(如“Yes, that is.”)。
5. 参考答案:问句:Do you have a green pencil case?
肯定答:Yes, I do.
解析:主语是第二人称(You),谓语是实义动词(have),变一般疑问句在句首加助动词Do。
学生常见错误提醒:错误地加助动词Are(如“Are you have...”),或答语用“Yes, I have.”。
6. 参考答案:问句:Can the monkey climb the tree?
肯定答:Yes, it can.
解析:含有情态动词can的陈述句变一般疑问句,将can提前至句首。主语the monkey用it指代。
学生常见错误提醒:错误地加助动词Does(如“Does the monkey can...”)。
7. 参考答案:问句:Does Emma like peaches?
肯定答:Yes, she does.
解析:主语是第三人称单数(Emma),谓语是实义动词(likes),变一般疑问句在句首加助动词Does,并将likes还原为like。
学生常见错误提醒:忘记将动词还原(如“Does Emma likes peaches?”),或答语用“Yes, she likes.”。
8. 参考答案:What is it?
解析:对物品(a ruler)提问,用疑问词What。句子是be动词is,疑问句中is提前。
学生常见错误提醒:用How提问,或将be动词遗漏(如“What it is?”)。
9. 参考答案:What do you like?
解析:对物品(bananas)提问,用疑问词What。主语是I,疑问句中变为you,时态是一般现在时,用助动词do。
学生常见错误提醒:用How提问,或忘记使用助动词do,或未将I变为you(如“What you like?”)。
10. 参考答案:Where is the apple?
解析:对地点(on the desk)提问,用疑问词Where。句子是be动词is,疑问句中is提前。
学生常见错误提醒:用What提问,或将be动词遗漏(如“Where the apple is?”)。
11. 参考答案:How many ducks are there on the farm?
解析:对可数名词的数量(five ducks)提问,用疑问词How many。句子是There be结构,保持不变。
学生常见错误提醒:用What提问,或将be动词遗漏(如“How many ducks there are?”)。
12. 参考答案:Who is cleaning the blackboard?
解析:对人物(Wang Jun)提问,用疑问词Who。句子是含有be动词(is)的陈述句,疑问句中is提前。
学生常见错误提醒:用What提问,或将be动词遗漏(如“Who cleaning the blackboard?”)。
13. 参考答案:What colour is the orange?
解析:对颜色(orange)提问,用疑问词What colour。句子是be动词is,疑问句中is提前。
学生常见错误提醒:用What提问,或将be动词遗漏(如“What colour the orange is?”)。
14. 参考答案:These are peaches.
解析:This is a peach. 改为复数句,指示代词this变为these,be动词is变为are,名词peach加s。
学生常见错误提醒:忘记改变指示代词和be动词,或名词复数形式错误(如:peachs)。
15. 参考答案:Those are big elephants.
解析:That is a big elephant. 改为复数句,指示代词that变为those,be动词is变为are,不定冠词a去掉,名词elephant加s,形容词big保持不变。
学生常见错误提醒:忘记改变指示代词和be动词,或名词复数形式错误。
16. 参考答案:The children are playing with yellow balls.
解析:The child is playing with a yellow ball. 改为复数句,名词child变为children(不规则变化),be动词is变为are,不定冠词a去掉,名词ball加s,形容词yellow保持不变。
学生常见错误提醒:名词复数形式错误(如:childs, ballses),或忘记将be动词改为are。
17. 参考答案:问句:Does Lucas have a new book?
否定答:No, he doesn't.
解析:主语是第三人称单数(Lucas),谓语是实义动词(has),变一般疑问句在句首加助动词Does,并将has还原为have。
学生常见错误提醒:忘记将动词has还原为原形have(如“Does Lucas has a new book?”),或答语中动词未还原(如“No, he has.”)。
18. 参考答案:问句:Are these sheep?
否定答:No, they aren't.
解析:含有be动词(are)的陈述句变一般疑问句,将be动词(are)提前至句首。主语these指代复数,回答时代词用they。
学生常见错误提醒:忘记将be动词提前(如“These are sheep?”),或答语中主谓不一致(如“No, these aren't.” 不简练)。
19. 参考答案:问句:Can Noah swim in the pool?
否定答:No, he can't.
解析:含有情态动词can的陈述句变一般疑问句,将can提前至句首。主语Noah是男性,回答时代词用he。
学生常见错误提醒:错误地加助动词Does(如“Does Noah can swim in the pool?”)。
20. 参考答案:问句:Does Liu Yi like mangoes?
否定答:No, he doesn't.
解析:主语是第三人称单数(Liu Yi),谓语是实义动词(likes),变一般疑问句在句首加助动词Does,并将likes还原为like。
学生常见错误提醒:忘记将动词likes还原为原形like(如“Does Liu Yi likes mangoes?”),或答语中动词未还原(如“No, he likes.”)。
21. 参考答案:问句:Is the dog running now?
否定答:No, it isn't.
解析:含有be动词(is)的现在进行时陈述句变一般疑问句,将be动词(is)提前至句首。主语the dog用it指代。
学生常见错误提醒:忘记将be动词提前(如“The dog is running now?”),或答语中主谓不一致(如“No, the dog isn't.” 不简练)。
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