七年级仁爱版句型转换专项练习

七年级上册Unit1名词变复数专项练习名词变复数规则变化及发音：1、绝大多数的可数名词在词尾加上s ；book→books；desk→desks；pen→pens；car→carss遇t读浊辅音[ts]，遇d读清辅音[dz]friend→friends; cat→cats;2.、以s、x、ch、sh结尾的单词，在该词末尾加上-es；读音规则：读[iz]；bus→buses; box→boxes; watch→watch ches; dish→dishes3、以辅音字母+y结尾的名词，要把y变为i，再加-es读音规则：读[z]。

fly→flies; b ab y→b abies;元音字母加y结尾的单词直接加s；eg：toy→toys；boy→boys；4、以-f或-fe结尾的名词，要将-f或-fe变为-v，再加es；读音规则：读[vz]；knife→knives；leaf→leaves；5、以-o结尾的名词，初级阶段只有三个单词要加-es，其余都加-s；读音规则：读[z]。

tomato→tomatoes西红柿; potato→potatoes土豆; hero→heroes英雄; Negro—Negroes 口诀：“黑人英雄喜欢吃土豆和西红柿”名词变复数不规则变化：1.单词内部发生变化：口诀“oo常常变ee，男人女人a变e”foot→feet脚；tooth→teeth牙齿；man→men男人；woman→women女人；2.单复数相同：“羊鱼小鹿无变化，单数复数是一家”sheep→sheep绵羊；fish→fish鱼；deer→deer鹿；3.不规则变化：child→children孩子；mouse→mice老鼠；German→Germans德国人；4“某国人”的复数有三种类型：（1）Chinese, Japanese单数复数同形，不需加s；（2）Englishman, Frenchman, Dutchman复数要把man 变为men；（3）其他各国人以–an, -ian收尾的均直接加s。

如：Americans, Australians,不可数名词：⒈不可数名词概念：不可以数的名词叫做不可数名词。

包括物质名词（表示无法分为个体的物质）和抽象名词（表示抽象概念的词）。

⒉不可数名词特点：⑴不可数名词没有复数形式，也不能与a, an及数词连用，常作单数看待。

例：water There’s some water in the bottle.food My favourite food is noodles.⑵不可数名词如表数量，常和a bottle of, a glass of等名词词组连用。

如表示复数，只把量词改为复数。

例：a bottle of water一瓶水, two glasses of water 两杯桔子汁，three cups of tea 三杯茶，a piece of paper一张纸⑶有些物质名词有时可数，有时不可数，要根据上下文决定，其意义也有所不同。

1．以O结尾的名词顺口溜规律：有生命的以o结尾的名词变复数时，词尾加es，凡无生命的以o结尾的名词变复数时，词尾加s。

口诀1：黑人和英雄们吃土豆和西红柿es其余全部加s解释：negroes and heroes eat tomatoes and potatoes口诀2：你在“zoo”里看见一根“bamboo”上面挂着一张“photo”所照的是一架“piano”上面放着一台“radio”解释：zoo-zoos, bamboo-bamboos, photo-photos piano-pianos, radio-radios.2.表示民族的名词顺口溜口诀：“中、日、瑞”友好是一致；“英、法”联盟a变e；其他一律加s 。

解释： Chinese，Japanese单复数同形；Englishman，Frenchman的复数为Englishmen，Frenchmen；其他像German，American，Australian等的复数形式是在后面加“s”。

3.以f、fe结尾的顺口溜规律：以f(e)结尾的名词变为复数时，改“f(e)”为“ve”再加“s”。

口诀：树叶半数自己黄，妻子拿刀去割粮；架后串出一匹狼，吓得窃贼逃命忙。

解释：wife（妻子）， knife（刀子），wolf（狼）thief（小偷），shelf（架子），life（生命）4.巧记不规则名词单变复口诀：大鹅老鼠齐步走男男女女龇龇牙解释：goose-geese; mouse-mice;foot-feet; tooth-teeth;man-men; woman-women;5.单复数形式一致的顺口溜口诀：一个中国人和一个日本人骑着一只羊和鹿去吃水煮鱼。

解释：Chinese, Japanese ,deer, sheep, fish练习Ⅰ. 写出下列单词的复数形式：fish- boy- watch- knife- leaf- wife- baby- family- man- woman- child- tooth-goose- mouse- sheep- peach- picture- Chinese- he- his- I- this- is- it- that- Ⅱ. 将下列句子改为复数句子:1. He is looking after the baby.____________________________2. It’s a big heavy box. __________________________________3. This picture is nice.____________________________________4. She is a beautiful woman._______________________________5. I’m a good child. ___________________________________6. That’s a delicious peach._________________________________Ⅲ. 将下列句子改为单数句子：1. These are red coats. ________________________________________2. Who’re the boys? They’re my students.____________________________3. They’re women workers here. _____________________________________4. Are they playing basketball now? Yes, they are____________________5. What are they? They are buses. ________________________________6. Those are beautiful flowers._____________________________________7. We have many old pictures.____________________________________Ⅳ. 划出下列单词中的不可数名词:meat shirt food knife snow water ice tea orange cap car farmer ear bread milk noodles eraser clothes七年级仁爱版句型转换专项练习：（一）把下列句子改为否定句。

1.I am thirteen years old.2. He is twelve years old.3. She’s fourteen years old.4. I am in Class Five, Grade Seven________________________ .5. Jane is in Grade Eight.6. They are in Class Eleven.________________________. _________________________ 7. She is from Canada. 8. They are from China.________________________. __________________________ 9. I’m from England. 10. This is an eraser.____________ ____. ______________________.11. This is a book. 12. That is an old book.（二）把下列句子改为一般疑问句，并做肯定，否定回答。

1．I am thirteen years old.__________________ _______________ _______________2. He is twelve years old.___________________ _______________ _______________ 3. She’s fourteen years old.__________________ ______________ ________________ 4. I am in Class Five, Grade Seven.___________________ ________________ ______________ 5. Jane is in Grade Eight.____________________ _____________ _________________ 6. They are in Class Eleven.____________________ ______________ ________________ 7. She is from Canada.___________________ _______________ _______________ 8. They are from China.____________________ _______________ _______________ 9. I’m from England.____________________ ______________ ________________ 10. This is an eraser.____________________ ______________ ________________ 11. This is a book.____________________ ______________ ________________12. That is an old book.____________________ ______________ ________________ 13. These are rulers.___________________ ______________ ________________ 14. Those are cakes____________________ _______________ _______________ 15. It’s an orange._____________________ ______________ ________________ 16. They are eggs.___________________ _______________ _______________ （三）根据画线部分提问：1．I am thirteen years old. 2. He is twelve years old._____________________ ______________________3. She’s f ourteen years old.4. I am in Class Five, Grade Seven. ______________________ _______________________5. Jane is in Grade Eight.6. They are in Class Eleven._____________________ __________________________ 7. She is from Canada. 8. They are from China._______________________ ______________________9. I’m from England. 10. This is an eraser.________________________________________ （四）把下列句子单数改为复数，复数改为单数：1．This is a bus. 2. That is a box.____________ ______ _____________________ 3. It is an orange. 4. These are English books. ___________________ ____________________5. Those are Chinese books.6. They are my pencils.___________________。