Unit4AtthefarmPartBLet'slearnDrawandsay（课件）四年级英语下学期（人教PEP版）

Unit4AtthefarmPartBLet'slearn&DrawandsayLet’ssingRoleplayTherearealotofanimalsatthefarm.Whatcanyousee?Icansee…Whatisthis?Itisahen.Whatarethese?Theyarehens.Whatisthat?Itisahorse.Whatarethose?Theyarehorses.It’sblackandwhite.Itisbig.Wedrinkitsmilk.Whatisit?Canyouguess?Itisacow.cowThesecowsaresocute.No,itisn’t.Yes,itisnotacow.Itisasheep.Isitacow?sheepThesesheeparewhite.sheep的复数形式为sheep，注意该单词的单数和复数同形。可数名词单数变复数变化规则(一)b.以s,sh,ch,x等结尾的词加“es”，

如:bus→buses,

box→boxes  一般名词复数是在名词后面加上“s”，

如:pen→pens,book→booksLanguagepointd.以元音字母＋y结尾的名词变复数时，直接加s变复数，如:toy→toysc.以辅音字母＋y结尾的词，

变y为i加es，

如:candy→candies可数名词单数变复数变化规则(二)f.以o结尾的名词变复数，如表示“有生命”的名词时，在词尾加“es”,如:tomato→tomatoes    e.以o结尾的名词变复数，如表示“无

生命”的名词时，在词尾加“s”,

如:photo→photos,zoo→zoosLanguagepointh.单复数同形的名词要牢记，

如:sheep,deer,fishg.以f或fe结尾的名词变复数时

通常是去掉f或fe，加ves，

如：knife→knives提示：以o结尾且表示“有生命”的名词巧记如下：

英雄、黑人爱吃西红柿、土豆和芒果。hero→heroesnegro→negroestomato→tomatoespotato→potatoesmango→mangoes写出下列名词的复数形式。1.cow_______2.hen_______3.carrot_______4.sheep_______5.horse_______6.book_______7.potato_______8.tomato_______9.fish_______ReadandwritecowshenscarrotssheephorsesbookspotatoestomatoesfishListenandimitate.

2.Readthedialogueandthewords.3.Roleplay.Thesearesheep.sheepWow!They’resocute!cowshenshorsesWhat’sMissing?catshenshorsescowssheepdogsmonkeysducksAskandanswerWhatisthis/that?Itisa…Whatarethese/those?Theyare…DrawyourdreamfarmTalkaboutyourdreamfarmThisismyfarm.It’sbig.Arethese/those…?Yes,theyare./No,theyaren’t,theyare…GoodtoknowmoreTherearealotofEnglishidiomsaboutanimals.Let’shavealook.1.countsheep（数羊以求入睡）2.ablacksheep（害群之马；有辱家族的人）3.eatlikeahorse（吃的很多）4.berainingcatsanddogs（下倾盆大雨）5.killtwobirdswithonestone（一石二鸟；一箭双雕）6.achicken-or-eggproblem（因果难定的问题）Readandmatchsheep