2min/10min三單是指第三人稱(chēng)單數(shù)“三”是指第三人稱(chēng)人稱(chēng)分為:第一人稱(chēng)I/we第二人稱(chēng)：you/you第三人稱(chēng)：he/she/it/they“單”是指單數(shù)，數(shù)量為“一”什么是“三單”？2min/10min何時(shí)用“三單”？在一般現(xiàn)在時(shí)中，當(dāng)主語(yǔ)是第三人稱(chēng)單數(shù)時(shí)，謂語(yǔ)動(dòng)詞用“三單”。如何判斷主語(yǔ)是不是“三單”？滿足“三非”：

非你，非我，非復(fù)數(shù)，即為“三單”1min/14mins“三單”如何變形？①一般情況：在詞尾加-s:write→writes，like→likes，get→gets②￠-s.-x.-ch,-sh.-o結(jié)尾的單詞在詞尾加-es：pass→passes,wash→washes,fix→fixes,go→goes,teach→teaches,do→does③以輔音字母+y結(jié)尾的單詞,變y為i再加es;以元音字母+y結(jié)尾：直接加-s：carry→carries,study→studies,worry→worries,stay→stays,play→plays,buy→buys④特殊情況：have→hasbe→is1min/14mins如何判斷主語(yǔ)為“三單”？

①人稱(chēng)代詞he.she.it作主語(yǔ)：HelikeswatchingTV.Shehaslunchattwelve．Itlookslikeacat.

②單個(gè)人名、地名或稱(chēng)呼作主語(yǔ)：HanMeilookslikehermother.

BeijingisinChina.UncleWangoftenmakescakes.③單數(shù)名詞或"thisV/-that/the/形容詞性物主代詞＋單數(shù)可數(shù)名詞"作主語(yǔ)：Ahorseisausefulanimal.Thisbookisyours.Mycarisred.ThecatisLucy's.1min/14mins如何判斷主語(yǔ)為“三單”？

④不定代詞someone,somebody,nobody,everything,something等及指示代詞this,that作主語(yǔ)時(shí)：Thereissomethingwrongwiththewatch.Everyoneishere.Thisisapen.Thatisaneraser.⑤不可數(shù)名詞作主語(yǔ)：Themilkisintheglass.Thebreadisverysmall.⑥當(dāng)數(shù)字或字母作主語(yǔ)：“6”isaluckynumber.“M”isaletter.練一練用所給動(dòng)詞的適當(dāng)形式填空：He__________TVeveryevening.(watch)Hisuncleusually___________toworkbybus.(go)Hisparentsalways__________toparkonfoot.(go)Tomandhisclassmatesoften_______footballafterschool.(play)Yourshoes_______underthebed.(be)watchesgoesgoplayare練一練6.______hereand______byme.(come,stand)7.Lethim________(play)basketball.8.Everyone________(know)whathereallylike.9.Thatgirl_________(call)mee