Unit3isthisyoursister？SectionAGrammarFocus3c课件人教版七年级英语上册

SectionAGrammarFocus---3c

Unit3Isthisyourpencil?NametheminEnglish!dictionariesschoolbagpencilpencilboxNametheminEnglish!rulerspeneraserspencilsharpenersWho'stheowner?根据表情符号认领东西。Isthisyourschoolbag?Yes,itis.It’s

mine.myschoolbagIsthisyoureraser?No,itisn’t.It’shis.hiseraserhisIsthatyourpencil?No,itisn’t.It’shers.herpencilhersAretheseyourdictionaries?Yes,theyare.They’remine.mydictionariesAretheseyourbooks?No,theyaren’t.They’rehers.herbookshersArethoseyourpencilboxes?No,theyaren’t.They’rehis.hispencilboxeshisQuestionsAnswersIsthisyourpencil?Yes,itis.It’smine./No,itisn’t.It’shers.Isthishisgreenpen?Yes,itis./No,itisn’t.Thebluepenishis.Isthatyourschoolbag?Yes,itis./No,itisn’t.It’shis.Aretheseyourbooks?Yes,theyare./No,theyaren’t.They’rehers.Arethoseherkeys?Yes,theyare./No,theyaren’t.They’remine.GrammarFocusAttention!it’s＝itisisn’t＝isnotaren’t＝arenot语法精讲

一、物主代词物主代词是表示某物属于“谁的”的代词，分为形容词性物主代词和名词性物主代词两种。形容词性物主代词相当于形容词，置于名词之前做定语。如：hername,yourbirthday,theirfriends。名词性物主代词相当于名词，不能用于名词前。见下表：类别形容词性物主代词名词性物主代词汉语意思单数形式mymine我的youryours你的hishis他的herhers她的itsits它的复数形式ourours我们的youryours你们的theirtheirs他们的形容词性物主代词起形容词作用，在句中只能作定语,也就是说它后面必须跟一个名词。即：形容词性物主代词＋名词。形容词性物主代词前面不能加冠词a/an/the。Thisismybike.这是我的自行车。Hername’sMary.她的名字是玛丽。形容词性物主代词mine,yours,hers,his等是名词性物主代词，相当于“形容词性物主代词my/your/her/his＋名词”。名词性物主代词的用法：(1)名词性物主代词＝形容词性物主代词＋名词(2)名词性物主代词在句中作主语、宾语或表语。

名词性物主代词1.Hispenisgreen.Mineisblue.(作主语)

他的钢笔是绿色的，我的(钢笔)是蓝色的。2.Myeraserisinthepencilbox.Whatabout

yours？(作宾语)我的橡皮在铅笔盒里，你的呢？（=Hispenisgreen,mypenisblue.)(=Myeraserisinthepencilbox,whataboutyoureraser?)3.Thisismyruler,thatoneishers.(作表语)这是我的直尺，那把是她的。(=Thisismyruler,thatoneisherruler.)[口诀]物主代词分形、名，形式、用法各不同；形容词性先出场，我的my你的your；男的his女的her，它的its不加撇；我们的our他们的their，别忘记！物主代词形变名，多数词尾加“s”；my变mine须分明，his和its是本身；形跟名词，名不跟，用法牢记不会错！

口诀

有“名”则“形“，无“名”则“名”

意思是：后面是名词的话，前面就要用形容词性物主代词。后面没有名词的话，就用名词性物主代词。物主代词的注意事项练一练，填一填Thisismybook.

Thisbookismine.2.Thatishisdictionary.Thatdictionaryishis.3.Isthisherruler?Yes,it'shers.4.Thisisyourruler.It’snotmyruler.=Thisruleris

yours.It’snot

mine.这是你的尺子，不是我的尺子。5.Thosearen’t

hisbooks.They’re

herbooks.=Thosebooksaren’t

his.They’re

hers.那些不是他的书，是她的书。I6.Thesearemybooks.Whereare______?

A.their

B.theirs

C.my

7.MissLiinvited__havedinnerwithher.A.meandyouB.youandIC.youandme8.Whotaught_____Englishlastterm?A.themB.theirC.theyPairworkA:Isthisyourpen?

B:Yes,itis.It’smine.

A:Isthatyoureraser?

B:No,itisn’t.It’shis.hishismineminehersPairworkA:Aretheseyourpencilboxes?

B:Yes,theyare.They’remine.

A:Arethoseyourdictionaries?

B:No,theyaren’t.They’rehers.hisminehishers人称代词和物主代词类别人称代词主格人称代词宾格形容词性物主代词名词性物主代词单数形式Imemymineyouyouyouryourshehimhishissheherherhersitititsits复数形式weusouroursyouyouyouryourstheythemtheirtheirs辨析：人称代词和物主代词以I、me、my、mine为例词汇用法例句I主格代词，“我”只能作主语，永远大写。Iamateacher.me宾格代词，“我”，放在动词或介词后作宾语。Canyougowithme?Don'thitme.my形容词性物主代词，“我的”，后接名词作定语。MynameisEmma.mine名词性物主代词，后不接名词，相当于“my+名词”。Thisisyourbook,thatismine.Completethequestionsandanswerabouteachpicture.3aIs______yourbook?Yes,itis.No.it_______.Are_____mypencils?Yes,_____are.No,theyaren’t.Is______hisruler?Yes,it______.No,itisn’t.Are______herpens?Yes,theyare.No,they______.thisisn’tthesetheythatisthosearen’tYes,____.It’s_____.No,______.____Sally’s.Yes,________.They’re___.No,__________._______mine.3bitishersitisn’tItistheyarehistheyaren’tThey’reIsthisherruler?IsthatEric’sschoolbag?Arethesehispencils?ArethoseAnna’sbooks?Readthequestionsandanswersabouteachpicture.3c

…

...狗的名字__________________名词所有格1.表示无生命事物的所有关系，用“名词+of +名词”结构，表示前者属于后者。2.表示有生命事物的所有关系，在名词其后加 “’s”来表示所属关系，意为“…...的”。一般的单数名词在词尾直接加“’s”Tom’sbook汤姆的书

myuncle’scar

我叔叔的小汽车以-s结尾的复数名词在词尾加“’”thestudents’basketball学生们的篮球thenameofthedog一、单项选择1.－Isthisyourkey,Jenny?

－No.______isinmyschoolbag.A.His B.HersC.Mine

2.—Isthis_______book?—No,itisn’t________.A.theirs;theirB.hers;hisC.your;mine3.Thegreenpenisn’t____.It’s______.A.his;hisB.his;yoursC.yours;myCCBExercisesExerciseⅠ.写出下面单词的缩写形式1.itis

2.isnot

3.theyare

4.arenot

5.thisisnot

it’sisn’tthey’rearen’tthisisn’tⅡ.选词填空1.Is

(this,these,they)your

book?2.

(That,This,Those)books

are

not

mine.3.

(Is,Am,Are)these

your

rulers?4.Are

(that,those,he)her

pencils?5.—Are

those

(Anna,Tom’s,hers)photos?—No,they

aren’t.thisThoseArethoseTom’sFindtheowneroftheeraser.A:

Excuseme.Isthisyoureraser?B:No,itisn’t.

Ithink

it’s

her/his

eraser.A:Excuseme.Isthisyoureraser?C:No,itisn’t.

Ithink

it’s

her/his

eraser.A:Isthisyoureraser?D:Yes,itis.It’s

my

eraser.A:

Hereyouare.D:Thankyou.—What’sthisinEnglish?—It’sa/an…—Howdoyouspellit?—…—Isthisyour…—No,itisn’t.—Isthishis/her…—No,itisn’t.It’shis/her…Makeconversations

这是你的铅笔吗？

______yourpencil?是的。它是我的。

Yes,______.It’s_____.2.那是你的书包吗？

______yourschoolbag?

不是。它是他/她的。

No,______.It’s___/_____.3.这是他的绿色钢笔吗？

__this________pen?IsthismineIsthatitisn’thishers

itis

Ishisgreen一、完成句子。

不是。那只蓝色钢笔是鲍勃的。

No,_______.The________is____.4.这些是你的书吗？

__________yourbooks?

是的。/不是。

Yes,________./No,___________.5.那些是她的钥匙吗？

_________her_____?

不是。它们不是她的，是辛迪的。No._______not______.They___________.Arethesetheyaretheyaren’tArethosekeysThey’rebluepenBob'sitisn’thersareCindy's1.Thisishergreenjacket.(改为同义句)Thisgreenjacketis_____.2.Mypenisred.Whatcolorisyourpen?(改为同义句)Mypenisred.Whatcoloris________?3.Thisishisgreenjacket.(改为同义句)Thisgreenjacketis_____.4.Yourpenisred;mypenisred,too.(改为同义句)Yourpenisred;______isred,too.hersyourshismine

二、按要求改写句子。三、补全对话，每空限填一词。A:________me,Tom.Arethese_______pencils?B:No,______arenotmine.TheyareMary’s.A:Andisthisblackpen________,too?B:No,_____isn’t.It’sPeter’s.Hecan’tfind(找到)______pen.A:Whataboutthiseraser?Isit______?B:Yes,it’s__