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1、mouse-miceman-menchild-childrendeer-d eer 鹿-es老鼠男人孩子小学英语可数名词变复数形式的规则1一般情况，在词尾加-s.desk-desks书桌girl-girls女孩boy-boyspen-pens2以-s,-x,-ch,-sh结尾的词，在词尾加-esbus-busesbox-boxesbrush-brusheswatch-watch3以辅首字母加-y结尾的词，变y为i,加-esbaby-babies婴儿family-families家庭4以-f或-fe结尾的词，变f或fe为v,再加-esknife-knives刀leaf-leaves树叶5 以辅音
2、字母加-o结尾的词，一般情况下，在词尾加tomato-tomatoes西红柿potato-potatoes马铃薯6 可数名词变为复数形式的不规则变化如下：foot-feet脚goose-geese鹅ox-oxen公牛woman-women女人Chinese-Chinese中国人1sheep-sheep绵羊fish-fish鱼同步练习题把单数变成复数：boxpencilwatchstardoorwindowbagbowlbookdogcatflower-treechairpeoplegirlmanwomanpolicemanpolicewomantoothgoosedoctorteacherch
3、ildstudenteyeearphotomappicturedesklifeleafhalfshelfwolfbirdpandalionfishdeersheepcandyfamilybabytoycarbuscupbottlelakehillwallstampChinesefestivalmountainfloornoodlefruitdumplingapplepearvegetablegrapebananacherrywatermelonorangeoxfootarmlegnecklacegamecomputermousedishtomatopotatoonioncabbagekites
4、hipchopstick_spoonclothpantshirthatcapsweatersockgiftpresentlanternsisterbrotherlight_keymonkeytigerrabbitsnakeanimalfrogtoadshoeknifefanglassrosebrushbearson_uncleaunteraserplane口诀：单数句子变，变化规则要记住。名词代词要变化，am,is要变are。this,that变成啥，these,those来替它。he,she,it要变啥，全部变they不用怕。I要变we莫落下，名词后面把s/es加。名前冠词去掉它，其余成分原
5、样加。具体注意下面的六要素：1 .单数主格人称代词要变成相应的复数主格人称代词，即Ifwe;youfyou;she,he,itthey。如：Sheisagirl.fTheyaregirls.2 .am,is要变为are。如：Imastudent.fWearestudents.3 .不定冠词a,an要去掉。如：Heisaboy.fTheyareboys.4 .普通单数名词要变为复数形式。如：Itisacat.fTheyarecats.5 .指示代词this,that要变为these,those。如：Thisisabook.fThesearebooks.6.man,woman作定语修饰可数名词时，
6、要在数上与被修饰名词保持一致。但其他名词修饰名词表示性质时，不作变化。如：Heisamandoctor.Theyaremendoctors.Thisisanappletree.fTheyareappletrees.单复数相互转换，每空一词（含缩写）。1. Thewomanisanurse.改为复数句）The.2. Therearesomeoldcars.改为单数句）Thereold.3. Hehasanewbook.做为复数句）new.4. Aretheseyourchicks?（改为单数句）your?5. Isthereasheepintheplayground?改为复数句）thereintheplayground?6.7.
