一、名词2.以下词为常为不可数名词，他们的复数形式就是他们本身。Water(水)milk(牛奶)tea(茶)rice(米饭)orange（橙汁）juice（果汁）bread（面包）写出下列各词的复数I_________this___________that___________watch_______child_______photo________diary_________day________foot________book_______dress______________tooth_______sheep______box_______strawberry_____________thief_______man______woman_______paper_______juice_______water________milk________rice__________tea_____名词单复数（1）名词可以分为可数名词和不可数名词，不可数名词没有单复数，一律看作单数。（2）可数名词的单数前什么时候用a，什么时候用an？答：以元音音标（或音素）开头的用an。以辅音音标（或音素）开头的用a。注意：我们看的是音标（或音素），而不是元音字母。一、选择a或an或不填（用/表示）penbagapplebigapplebananaorangeorangesorangepen③单复同形的名词有：chinese中国人Japanese日本人sheep绵羊deer鹿fish鱼注意：fish①当一条鱼讲时，单复数同形，如threefish.②当各种各样的鱼讲时，即强调鱼的种类时，要加es.,如：allkinds[kaindz]offishes.各种各样的鱼③当鱼肉讲时，不可数。5．不规则名词复数：1.Ihavetwo_____(knife)2.Therearemany_____here.(box)3.Therearemany_____ontheroad.(bus)4.Afew_____aredrawingonthewall.(boy)5.The_____areplayingfootballnow.(child)二、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、army17、tomato18、fox20、knife22、sheep<二>、选择填空1、Thereonthewall.Theyareverybeautiful.A.arephotoesB.arephotosC.isaphotoD.isphotos2.ThiskindofcarmadeinShanghai.A.isB.areC.wereD.has3.Therearefourandtwointhegroup.A.Japanese,GermenBJapaneses,GermenC.Japanese,GermanC.Japanese,Germans4.That’aartbook.A.anB.aC.theDare5.Theboyshavegotalready.A.twobreadB.twobreadsC.twopiecesofbreadD.twopieceofbread6.Theoldmanwants.A.sixboxesofapplesB.sixboxesofappleC.sixboxofapplesD.sixboxsofapples7.Theresomeintheriver.A.is,fishB.are,fishsC.is,fishsD.are,fish8.Theretwointhebox.A.iswatchB.arewatchesC.arewatchD.iswatches9.Weshouldcleantwiceaday.A.ourtoothB.ourtoothsC.teethD.ourteeth10.The_____meetingroomisnearthereadingroom.A.teacherB.teacher’sC.teachers’D.teachers11.InBritain_____areallpaintedred.A.letterboxesB.lettersboxesC.letterboxD.lettersbox2）.填入所给名词的正确形式1.Ihavetwo_____(knife)2.Therearemany_____here.(box