Period3GrammerFocus-3cUnit2Thisismysister.GrammarFocus语法焦点ThisismyfriendJane.That’smygrandfather.Thesearemybrothers.Thosearemyparents.Who’sshe?She’smysister.Who’she?He’smybrother.Who’rethey?They’remygrandparents.That’s=thatiswho’re=whoarewho’s=whoisthey’re=theyare单数复数可数名词如何变化？规则变化不规则变化1.一般情况下，直接在词尾加-s构成复数形式。carbackpackcarsbackpacksbookbooks1.box2.以s,x,ch,sh等结尾的名词，在词尾加-es构成复数形式。boxesclassclasseswatchwatchesbrushbrushessxshch2.3.以“辅音字母+y”结尾的名词，应改y为i，再加-es。familyfamiliescomediescomedy(喜剧)yyld3.4.以“元音字母+y”结尾的名词，直接在词尾加-s构成复数形式。boyboysdaydaysoayy4.Sumup:1.一般情况下,直接在名词词尾加-s.2.以s,x,sh,ch结尾的名词,在词尾加-es.3.以辅音字母加y结尾的名词，要变y为i再加-es.4.以“元音字母+y”结尾的名词，直接在词尾加-s.给下列可数名词加复数．bird--card--lady--orange--ruler--friend--boy--watch--girl--case--cat--tree--key--bed--family-party--cup--birdsladiesorangesrulerscatsboysgirlscaseswatchestreeskeysbedsfriendsfamiliescardspartiescupsthis–that–he/she/it–am/is–thesethosetheyare单数复数指示代词人称代词系动词句型转换1.What’sthis?复数What’rethese?2.He’saChineseboy.复数They’reChineseboys.3.Thisisabike.复数句Thesearebikes.指示代词系动词可数名词注意：单数句子转变为复数句子，指示代词、人称代词、系动词、可数名词都要变化为复数形式。二、句型转换1.Thisismymother.1）变否定句2）变一般疑问句，并作肯定或否定回答Thisisnotmymother.Isthisyourmother?Yes,itis./No,itisn’t.2.Thatisacar.1）变否定句2）划线提问3)变复数句Thatisnotacar.What’sthat?Thosearecars.3aCompletetheconversationandpracticeitwithyourpartner.A:That________myfamily.That’smymother.B:__________he?A:__________myfather.B:Who’s___________?A:She’s___________sister.B:And__________they?A:_______________mygrandparents.isWho’sHe’sshemywho’reThey’re3bLookatthepicture.Makesentenceswiththewordsinthethreeboxes.thisthatthesethosemyyourfathermothergrandfathergrandmotherparentsgrandparentsbrothersisterIs/are3cBringsomefamilyphotostoclass.Taketurnstoaskandanswerquestionsaboutthephotos.Thankyou!
