七年级英语语法：可数名词和不可数名词.docx

七年级英语语法：可数名词和不可数名词1、一般情况下，加s;读音规则：清读/s/,浊、元/z/eg：book→books;desk→desks;pen→pens;car→carss遇t读[ts]，遇d读[dz]eg：friend→friends;cat→cats;以s、x、ch、sh结尾的名词，加-es;读音规则：读[iz];eg：bus→buses;box→boxes;watch→watches;dish→dishes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]。eg：library---libraries;baby→babies;注意：元音字母加y结尾的单词直接加s;eg：toy→toys;boy→boys;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];eg：knife→knives;leaf→leaves;以-o结尾的名词，有的加s，有的加es读音规则：读[z]。初中阶段只有4个单词要加-es，其余都加-s;口诀：“黑人英雄爱吃土豆西红柿”eg：tomato→tomatoes西红柿;potato→potatoes土豆;hero→heroes英雄;Negro—Negroes其余eg：zoo→zoos;photo→photos;可数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eeg：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eg：sheep→sheep绵羊;fish→fish鱼;deer→deer鹿;不规则变化：child→children孩子;mouse→mice老鼠;German→Germans德国人;某国人的复数有三种类型：口诀:中日不变，英法变，其它在后加sChinese,Japanese单数复数同形，不需加s;Englishman,Frenchman,复数要把man变为men;其他各国人直接加s。如：Americans,Australian名词变复数练习题一、写出下列名词的复数形式1、orange2、class3、text4、monkey5、piano6、child7、shelf8、bed9、country10、family11、toy12、foot13、Japanese14、radio15、photo16、sheep17、tomato18、fox19、woman20、knife二、选择填空1.Theycomefromdifferent______A.countryB.countriesC.acountryD.countrys2.Howmany______doyouseeinthepicture?A.tomatosB.tomatoesC.tomatoD.thetomato3.Theyare______.A.womanteachersB.womenteachersC.womenteacherD.womanteacher4.Wouldyoulike_______,please?A.twoglassofwaterB.twoglassesofwaterC.twoglassofwatersD.twoglassesofwaters5.Mostof______livein_______.A.Germans,GermanB.German,GermenC.Germen,GermanyD.Germans,Germany6.Therearesome______inthese_______.A.knifes…pencil-boxesB.knives…pencils-boxC.knives…pencil-boxD.knives…pencils-boxes7.______like______byair.A.Greens,travellingB.TheGreen,travelingC.TheGreens,travelD.TheGreens,traveling8..Howmany_____dotheyhave??A.pictureB.picturesC.apicture9.Thereisno______intheplate.A.applesB.orangesC.riceD.eggs10._______aregoodforourhealth.A.TomatosB.TomatoesC.Tomato11.______and______arenotfriends.A.Foxs…wolfsB.Foxes…wolfsC.Foxes…wolves12.Thesearethe______ofournational______.A.photos…heroesB.ph