内容综合unit 6课件grammar.pptx

七年级上册英语教学课件系列

Unit6FoodandlifestylesGrammar

countableuncountable……apple orange cup plateegg dish pork saltbeef bread cake hamburgercabbage Coke bowl juiceshelfmeat milk rice tomatosugarCanyouhelpthemfindtherightfamily?Countableanduncountablenouns

singular(单数）plural(复数)Mostnouns+scake→cakesNounsendinginaconsonant+y-y+iesstory→storiesNounsendingins,sh,ch,orx+esbus→buseswish→wisheswatch→watchesbox→boxes

singular(单数）plural(复数)Nounsendingino+sor+esphoto→photospotato→potatoestomato→tomatoesNounsendinginforfe-forfe+veshalf→halvesknife→knivesSomeothernounsman→menwoman→womenfoot→feettooth→teethchild→childrensheep→sheep

可数名词:(1)定义:是可以计数的名词(2)可数名词前可以用a,an限定,表示一个……(3)可数名词前可以用one,two,three…限定。(4)可数名词有复数形式。可数名词和不可数名词Grammar

名词特点词尾加法词尾读音方法例词一般情况加-s1.-s在清辅音后读[s]2.-s在浊辅音后读[z]3.-s在元音后读[z]4.以音素[s,z,]结尾的,读[iz]desksapplestreesoranges以-s,-x,-sh,-ch结尾的加-es-es读[iz]boxeswatches以f或fe结尾的改f或fe为v再加-es-ves读[vz]kniveswives可数名词复数形式的构成(1)

名词特点词尾加法词尾读音方法例词以辅音字母加y结尾的改y为i再加-es-ies读[iz]familiesdictionaries以元音字母加y结尾的加-s-s读[z]boyskeys以o结尾的有生命的事物加-es-es读[z]tomatoespotatoes无生命的事物加-s-s读[z]photosradios可数名词复数形式的构成(2)

A)构成方法及读音规则1)一般情况加–s：map-maps??boy-boys??girl-girls??pen-pens??bag-bags??car-cars清辅音后读浊辅音和元音后读2)以s,sh,ch,x等结尾加–es,如：bus-buses??watch-watches??box-boxes??brush-brushes?可数名词复数形式变化

3)以辅音字母+y结尾,变y为i再加es,如：baby---babies??city-cities??country-countries但以y结尾的专有名词，或元音字母+y结尾的名词变复数时，直接加s变复数。如：?monkey---monkeys??holiday---holidays

4)以o结尾的名词，变复数时：A.加s,如:photo—photospiano—pianosradio—radioszoo—zoos；B.加es,如:potato—potatoestomato—tomatoes

5)以f或fe结尾的名词变复数时：改f,fev加-es，如：half—halvesknife