七年級上冊名詞單數(shù)變復(fù)數(shù)

七年級上冊名詞單數(shù)變復(fù)數(shù)第一頁，共27頁。名詞單數(shù)句子變復(fù)數(shù)句子第二頁，共27頁。Thisisanapple.Thatismysister.Theseareapples.Thosearemysisters.第三頁，共27頁。be動詞表示“是”，有三個(gè)：am,is,are.我（I）用am,你(you)用are,Is用于他(he)、她(she)、它(it),單數(shù)后跟is,復(fù)數(shù)人稱全部都用are.單數(shù)復(fù)數(shù)weyoutheythesethoseIyouhe/she/itthisthatamareisisisareareareareare第四頁，共27頁。Thisisanorange.Theseareoranges.Thatisapencil.Thosearepencils.第五頁，共27頁。

This

is

mygrandfather.Thisismygrandmother.

Theseare

mygrandparents.Thisismymother.Thisismyfather.

Thisismybrother.Thisismybrother,too.Theseare

myparents.

Theseare

mybrothers.第六頁，共27頁。把下列句子單數(shù)變成復(fù)數(shù)：1.Thisisabook.2.Thatisanorange.3.Thisismypencil.4.Thatisherquilt.5.Isthisyourwatch?6.Isthathisdictionary?7.Itismymap.8.That’shisring.Thesearebooks.Thoseareoranges.Thesearemypencils.Thoseareherquilts.Aretheseyourwatches?Arethosehisdictionaries?Theyaremaps.

Thosearehisrings.第七頁，共27頁。把下列句子變成復(fù)數(shù)。1.Thisismysister.2.Thisishercousin.3.Thatishisbrother.4.Thatismygrandparent.把下列句子變成單數(shù)。1Thesearemyfriends.2.Thosearehisparents.3.Thosearehersisters.4.TheseareLiLing’sbrothers.Thesearemysisters.Thesearehercousins.Thosearehisbrothers.Thosearemygrandparents.Thisismyfriend.Thatishisparent.Thatishersister.ThisisLiLing’sbrother.第八頁，共27頁。--Whatarethese?--What’sthis?--It’sapen.--Theyare

pens.第九頁，共27頁。--Whatarethose?--What’sthat?--It’sanEnglishbook.--Theyare

Englishbooks.第十頁，共27頁。backpackswatchesorangespens--What’rethese?--They’re….第十一頁，共27頁。mapscaseskeys--What’rethose?--They’re….第十二頁，共27頁。名詞單數(shù)變復(fù)數(shù)(一)規(guī)則變化:1.加s

2.加s,x,ch,sh結(jié)尾的名詞加es3.以輔音字母加y結(jié)尾的名詞,先改y為i,再加es(mothers,fathers,sisters,brothers)(buses,boxes,watches)(family--families

dictionary--dictionaries)區(qū)別

key–keysboy--boys第十三頁，共27頁。(二)不規(guī)則變化:4.單復(fù)數(shù)同形(不變):sheep(綿羊)deer(鹿)fish(魚)2.man,woman

men,women1.加es:potatoes(土豆)tomatoes(西紅柿)Chinese(中國人)Japanese(日本人)6.ooee：foot(腳)tooth(牙齒)goose(鵝)5.以f/fe結(jié)尾的,變f為v,再加eswife(妻子)knife(小刀)

shelf(架子)leaf(葉子)wolf(狼)3.child（孩子）children（男人，婦女）第十四頁，共27頁。名詞單數(shù)變復(fù)數(shù)后s/es的讀音1.在清輔音后讀/s/2.在元音和濁輔音后讀/z/3.在/s//z//∫////t//d/后讀/iz/4.在/t/后讀/ts/，在/d/后讀/dz/∫desksmapsbrotherspensclasses,watches,orangescats,friends

第十五頁，共27頁。pendeskkeyboxknifecardorangeboyfriendparentmotherfathersisterbrothersondaughtercousinfamilychildmanpencilcasesheepssssesknivessssssssssssfamilieschildrenmenssheep第十六頁，共27頁。句子單數(shù)變復(fù)數(shù)Thisisabook.Thatisaneraser.Itisaredapple.Iamaboy.He/Sheisateacher.What’sthis?Thesearebooks.Those

areerasers.Theyareredapples.Weareboys.Theyareteachers.What’re

these?第十七頁，共27頁。this–that–I–you–he/she/it–am/is–thesethoseweyoutheyare單數(shù)復(fù)數(shù)第十八頁，共27頁。一、寫出下列單詞的復(fù)數(shù)I--2.am--3.he–4.pencil--5.watch--6.dictionary--7.man--8.it--9.parent--10.boy–wearetheypencils

watchesdictionariesmen

theyparentsboys第十九頁，共27頁。二、句型轉(zhuǎn)換1.Thisismymother.1）變否定句2）變一般疑問句，并作肯定回答Thisisnotmymother.Isthisyourmother?Yes,it

/sheis.第二十頁，共27頁。2.Thatisacar.1）變否定句2）劃線提問3)變復(fù)數(shù)句Thatisnotacar.What’sthat?Thosearecars.第二十一頁，共27頁。3.That’sanEnglishdictionary.1）變否定句2）變一般疑問句，并作否定回答That’snotanEnglishdictionary.IsthatanEnglishdictionary?No,itisn’t.第二十二頁，共27頁。4.Herfamilyname’sSmith.5.Myjacketislightblue.6.is,that,brother,my,Dave組詞成句劃線提問劃線提問What’sherfamilyname?Whatcolorisyourjacket?Thatismybrother,Dave.第二十三頁，共27頁。句型轉(zhuǎn)換1.What’sthis?復(fù)數(shù)

What’rethese?2.He’saChineseboy.復(fù)數(shù)They’reChineseboys.第二十四頁，共27頁。

3.Thisisabike.