Unit2語(yǔ)法知識(shí)課件仁愛(ài)版七年級(jí)英語(yǔ)上冊(cè)

Unit2LookingDifferent---語(yǔ)法知識(shí)精講動(dòng)原和三單

---動(dòng)詞原形和動(dòng)詞第三人稱單數(shù)形式Ioftenplayfootball.Wegohomeonfoot.Youhaveapetdog.Helovespigs.Sheusuallyplaysgamesathome.Itdoesn’teatpotatoes.TheyalwayswatchTVathome.動(dòng)詞v（verb.)---表動(dòng)作Ioftenplayfootball.Wegohomeonfoot.Youhaveapetdog.TheyalwayswatchTVathome.CandyandJudyloveyou.V原

（動(dòng)詞原型）1.主語(yǔ)是第一，二人稱，復(fù)數(shù)人稱I,You,We,They,

兩個(gè)以上的人物做主語(yǔ)。用法Helovespigs.Sheusuallyplaysgamesathome.Ithastwobigeyes.Tomlikesbananas.

三單---（動(dòng)詞的第三人單數(shù)形式）

主語(yǔ)是第三人稱He,She,It,

單個(gè)人物做主語(yǔ)。實(shí)義動(dòng)詞變第三人稱單數(shù)的規(guī)則適用于一般現(xiàn)在時(shí)用動(dòng)詞的適當(dāng)形式填空1.Ioften_______(go)toschoolonfoot.2.Heusually________(work)athome.3.Amy_______(want)toplaygames.4.We_______(have)someapples.5.Mikealways_________(watch)TVonSunday.goworkswantshavewatches句型轉(zhuǎn)換--需添加助動(dòng)詞完成轉(zhuǎn)換Ilikesinging.Idon’tlikesinging.Doyoulikesinging?Yes,Ido.No,Idon’t.Hehasasmallnose.Hedoesn’thaveasmallnose.Doeshehaveasmallnose?Yes,hedoes.No,hedoesn’t.否定句一般疑問(wèn)句助動(dòng)詞

幫助動(dòng)詞的詞，本身沒(méi)有實(shí)際意義dodon’tdoesdoesn’tdiddidn’t過(guò)去式幫助動(dòng)詞1.動(dòng)詞變否定don’thavelongnoses.2.動(dòng)詞變疑問(wèn)句Mikegoestotheparkbybus.DoesMikegototheparkbybus?HowdoesMikegotothepark?助動(dòng)詞后面的動(dòng)詞永遠(yuǎn)是原形句型轉(zhuǎn)換1.Sheloveseatingcakes.否定句:_________________________________________一般疑問(wèn)句：____________________________________2.Wehavelunchatschool.一般疑問(wèn)句：______________________________________肯定回答：________________________________________Shedoesn’tloveeatcakes.Doessheloveeatingcakes?Doyouhavelunchatschool?Yes,wedo.表示所屬關(guān)系物主代詞名詞所有格形容詞性物主代詞名詞性物主代詞有生命無(wú)生命第一人稱第二人稱第三人稱單數(shù)復(fù)數(shù)單數(shù)復(fù)數(shù)單數(shù)復(fù)數(shù)形容詞性物主代詞名詞性物主代詞myouryouryourhisheritstheirmineoursyoursyourshishersitstheirsWhosecandiesarethey?Theyaremycandies.Theyaremine.mine=mycandies.Whosehatisit?Itisherhat.Itishers.her=herhat.名詞性物主代詞=形容詞性物主代詞+名詞Thisisherbanana.

Thebananaishers.Thesearetheirpears.

Thesepearsaretheirs.形代后有名詞名代后無(wú)名詞Exercises用所給代詞的正確形式填空。

1.Theyare______(she)brothers.

2.Thatis_______(I)sister.

3.Thisbookis_______(he)

4.Tom,thisdogis______(my)

hismyhermine名詞所有格①用于人或其他表示有生命的名詞后②of表示所屬關(guān)系，用于沒(méi)有生命的物體如：amapofChina；

aphotoofmyfamily①用于人或其他表示有生命的名詞后：?

單數(shù)或不以s結(jié)尾的復(fù)數(shù)+’s如：Jane’sbook；Women’sDay?

以s結(jié)尾的復(fù)數(shù)+’

如：Teachers’Day?