七年級(jí)英語(yǔ)上冊(cè)-Unit-2-This-is-my-sister單元語(yǔ)法聚焦二省公開(kāi)課一等獎(jiǎng)新名師優(yōu)

[指示代詞和單數(shù)句與復(fù)數(shù)句轉(zhuǎn)換]單元語(yǔ)法聚焦二1/24教材典句

1．Thisismysister.這是我姐姐/妹妹。2．Thosearemyparents.那是我父母。3．Thesearemybrothers.這些是我弟兄們。4．ThisismyfriendJane.這是我朋友簡(jiǎn)。5．That'smygrandfather.那是我祖父。2/246．—Who'sshe？她是誰(shuí)？—She'smysister.她是我姐姐/妹妹。7．—Who'she？他是誰(shuí)？—He'smybrother.他是我哥哥/弟弟。8．—Who'rethey？他們是誰(shuí)？—They'remygrandparents.他們是我祖父母。3/24語(yǔ)法探究

1．指示代詞(1)定義：指示代詞是用來(lái)指示或標(biāo)識(shí)人或事物代詞。指示代詞表示“這個(gè)”、“那個(gè)”、“這些”、“那些”等含義。指示代詞有名詞和限定詞功效。常見(jiàn)指示代詞有________，________，________，________等。thisthatthese

those4/24(2)使用方法：①指示代詞可在句中作主語(yǔ)、賓語(yǔ)和定語(yǔ)。如：________isadesk.這是一張書(shū)桌。(作主語(yǔ))________boyismyfriend.這個(gè)男孩是我朋友。(作定語(yǔ))②this和these表示所指人或物距離說(shuō)話人比較近，而that和those表示所指人或物距離說(shuō)話人比較遠(yuǎn)。如：________isanorangeand________isanapple.這是一個(gè)橙子，那是一個(gè)蘋(píng)果。ThisTheseThisthat5/24③從數(shù)上來(lái)看，this和that指單數(shù)，these和those指復(fù)數(shù)。如：________ismymother.這是我媽媽。________aremyparents.這是我父母。④this和that用作電話用語(yǔ)時(shí)，this指自己，而that指對(duì)方。如：Hello,________isMary.Is________Xiaoli?你好！我是瑪麗。你是小麗嗎？ThisThesethisthat6/24⑤當(dāng)指示代詞在疑問(wèn)句中作主語(yǔ)時(shí)，其答句主語(yǔ)改變：this,that→it;these,those→they。如：—Is________abook？這是一本書(shū)嗎？—Yes,________is.是，它是?！狝re________yourfriends?那些是你朋友嗎？—Yes,________are.是，他們是。thisitthosethey7/242．單數(shù)句與復(fù)數(shù)句轉(zhuǎn)換(1)將單數(shù)句中指示代詞、人稱(chēng)代詞、名詞及be動(dòng)詞等變?yōu)閺?fù)數(shù)形式This/Thatisaruler.→These/________arerulers.SheisinChina.→TheyareinChina.I'maboy.→We________________．Thoseareboys8/24(2)將單數(shù)句中不定冠詞a,an去掉(一些固定搭配除外)。Itisanapple.→________________apples.Thatisapencil.→________________pencils.(3)單數(shù)句中形容詞、定冠詞、副詞、疑問(wèn)詞、介詞等保持不變。Thepenisred.→Thepensarered.Whatcoloristhejacket?→Whatcolorarethejackets?TheyareareThose9/24【注意】名詞作定語(yǔ)時(shí)，普通用單數(shù)形式，被修飾名詞變復(fù)數(shù)時(shí)，普通情況下，作定語(yǔ)用名詞不需要變?yōu)閺?fù)數(shù)形式，但由man或woman作定語(yǔ)修飾名詞變成復(fù)數(shù)時(shí)，兩部分皆要變?yōu)閺?fù)數(shù)形式。如：Thatisanorangequilt.→Thoseare________________．

orangequilts10/24Sheisawomandoctor.→Theyare________________．Hisfriendisamanteacher.→Hisfriendsare________________．

womendoctorsmenteachers11/24實(shí)戰(zhàn)演練

Ⅰ.寫(xiě)出以下單詞復(fù)數(shù)形式1．this________2．friend________3．name________4．is________5．family________thesefriendsnamesarefamilies12/246．that________7．key________8．boy________9．she________10．parent________

parentsthosekeysboysthey13/24Ⅱ.單項(xiàng)填空

(

)1.________myfriends.A．This'sB．That'sC．TheseareD．Theseis(

)2.Lookatthegirls!________aremysisters.A．ThoseB．TheseC．YouD．TheyC[解析]由后面“friends”可知用theseare。D[解析]代替前文提到復(fù)數(shù)名詞用they。14/24(

)3.This________mysisterandthose________myfriends.A．is;areB．a(chǎn)re;isC．a(chǎn)re;areD．is;is(

)4.Hello,Mary.________myfriends,JackandJim.A．ThisisB．ThatisC．TheseareD．ItisA[解析]考查be動(dòng)詞使用方法。this表示單數(shù)，用is;those表示復(fù)數(shù)，用are。C15/24(

)5.Are________her________？A．this;parentB．this;parentsC．these;parentD．these;parents(

)6.I'mlookingformykey,butIcan'tfind________．A．itB．oneC．thisD．thatDA16/24(

)7.—Isthisyourclassmate?—________.It'smybrother.A．Yes,itisB．Yes,heisC．No,itisn'tD．No,sheisn'tD[解析]指示代詞this在疑問(wèn)句中作主語(yǔ)時(shí)，其答句主語(yǔ)用it，故排除選項(xiàng)B和D。依據(jù)“It'smybrother.”可知選C。17/24(

)8.—Arethoseyourerasers?—________．A．Yes,itisB．No,itisn'tC．Yes,theseareD．No,theyaren'tD[解析]依據(jù)題干中those可排除選項(xiàng)A和B。回答these和those普通疑問(wèn)句時(shí)，應(yīng)用代詞they來(lái)作答，故選D。18/24Ⅲ.用指示代詞this,that,these或those填空1．—What's________overthere?—It'sabus.2．—Are________yourpencils?—No,theyaren't.Mypencilsarehere.3．—Are________yourrulers?—Yes,theyare.Iputthemhere.4．Hello.________isMary.Is________Jack?thatthosethattheseThis19/24Ⅳ.依據(jù)漢語(yǔ)意思完成句子1．他們是我父母。________________my________．2．那些是你朋友們嗎？_______________yourfriends?3．那些鑰匙是什么顏色？What________________those________？TheyareAre

parents

thosecolorarekeys20/244．她是我姐姐。________ismy________.5．“這是你弟弟嗎？”“是，他們是?！薄猒_______________your________？—Yes,________________.ShesisterArethesebrotherstheyare21/24Ⅴ.按要求完成以下各題1．Thisisaredjacket.(改為復(fù)數(shù)句)________________red________．2．Thoseareoranges.(改為單數(shù)句)________________________orange.3．Aretheseerasers？(作否定回答)No,________________．TheseareThat

jackets

isantheyaren't22/24

4．Theyaregirls.(改為單數(shù)句)________________________________．5．your,is,sister,Lily(連詞成句)__________________________________SheisagirlIsLilyyoursister23/24Ⅵ.依據(jù)漢語(yǔ)提醒完成短文Thisisa1.___________(照片)ofMr.Black's2.________(家庭).ThemaninthemiddleisMr.Black,the3.________(父親).Thewomanisthe4.________(母親).Theyhaveasonanda5.________(女兒).ThesonisbehindMr.Bl