七年级仁爱版句型转换专项练习

1七年级上册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→watchches;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;baby→babies;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：waterThere’ssomewaterinthebottle.foodMyfavouritefoodisnoodles.⑵不可数名词如表数量，常和abottleof,aglassof等名词词组连用。如表示复数，只把量词改为复数。例：abottleofwater一瓶水,twoglassesofwater两杯桔子汁，threecupsoftea三杯茶，apieceofpaper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2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：negroesandheroeseattomatoesandpotatoes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-photospiano-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3Ⅰ.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.Heislookingafterthebaby.____________________________2.It’sabigheavybox.__________________________________3.Thispictureisnice.____________________________________4.Sheisabeautifulwoman._______________________________5.I’magoodchild.___________________________________6.That’sadeliciouspeach._________________________________Ⅲ.将下列句子改为单数句子：1.Theseareredcoats.________________________________________2.Who’retheboys?They’remystudents.____________________________3.They’rewomenworkershere._____________________________________4.Aretheyplayingbasketballnow?Yes,theyare____________________5.Whatarethey?Theyarebuses.________________________________6.Thosearebeautifulflowers._____________________________________7.Wehavemanyoldpictures.____________________________________Ⅳ.划出下列单词中的不可数名词:meatshirtfoodknifesnowwatericeteaorangecapcarfarmerearbreadmilknoodleseraserclothes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.Iamthirteenyearsold.2.Heistwelveyearsold.3.She’sfourteenyearsold.4.IaminClassFive,GradeSeven________________________.45.JaneisinGradeEight.6.TheyareinClassEleven.________________________._________________________7.SheisfromCanada.8.TheyarefromChina.________________________.__________________________9.I’mfromEngland.10.Thisisaneraser.________________.______________________.11.Thisisabook.12.Thatisanoldbook.（二）把下列句子改为一般疑问句，并做肯定，否定回答。1．Iamthirteenyearsold.________________________________________________2.Heistwelveyearsold._________________________________________________3.She’sfourteenyearsold.________________________________________________4.IaminClassFive,GradeSeven._________________________________________________5.JaneisinGradeEight.__________________________________________________6.TheyareinClassEleven.__________________________________________________7.SheisfromCanada._________________________________________________8.TheyarefromChina.__________________________________________________9.I’mfromEngland.__________________________________________________10.Thisisaneraser.__________________________________________________11.Thisisabook.__________________________________________________512.Thatisanoldbook.__________________________________________________13.Thesearerulers._________________________________________________14.Thosearecakes__________________________________________________15.It’sanorange.___________________________________________________16.Theyareeggs._________________________________________________（三）根据画线部分提问：1．Iamthirteenyearsold.2.Heistwelveyearsold.___________________________________________3.She’sfourteenyearsold.4.IaminClassFive,GradeSeven._____________________________________________5.JaneisinGradeEight.6.TheyareinClassEleven._______________________________________________7.SheisfromCanada.8.TheyarefromChina._____________________________________________9.I’mfromEngland.10.Thisisaneraser.________________________________________（四）把下列句子单数改为复数，复数改为单数：1．Thisisa