七年級上冊外研版(2024)Unit1Anewstart語法知識&語法專練Unit1Anewstart語法知識精講本單元的核心語法項(xiàng)目是

動詞be（am,is,are）的一般現(xiàn)在時

和

人稱代詞（主格）。這是英語中最基礎(chǔ)也是最重要的語法點(diǎn)之一，務(wù)必掌握牢固。第一部分：語法講解1.動詞be(am,is,are)的基本用法動詞

be

是英語中最常用的系動詞，相當(dāng)于漢語中的“是”。它根據(jù)主語的人稱和數(shù)發(fā)生變化。人稱主語be動詞縮寫形式例句第一人稱單數(shù)I(我)amI'mIamastudent.(我是一名學(xué)生。)第三人稱單數(shù)He(他)/She(她)/It(它)/

單個人名/事物isHe's/She's/It'sSheismyteacher.(她是我的老師。)Beijingisabigcity.(北京是個大城市。)第二人稱及復(fù)數(shù)You(你/你們)/We(我們)/They(他們/她們/它們)areYou're/We're/They'reYouareinClassOne.(你在一班。)Wearefriends.(我們是朋友。)記憶口訣：我(I)用am，你(you)用are，is連著他(he)她(she)它(it)；單數(shù)is，復(fù)數(shù)are。2.動詞be的否定形式在am,is,are后面直接加not。Iamnot(I'mnot)fromLondon.Heisnot(isn't)tall.Theyarenot(aren't)students.3.動詞be的一般疑問句形式將am,is,are提到主語前面。Areyouanewstudent?—Yes,Iam./No,I'mnot.Issheyoursister?—Yes,sheis./No,sheisn't.Aretheyintheclassroom?—Yes,theyare./No,theyaren't.4.人稱代詞（主格）人稱代詞用來代替之前提到過的人或物，在句子中作主語。人稱單數(shù)復(fù)數(shù)第一人稱I(我)we(我們)第二人稱you(你)you(你們)第三人稱he(他),she(她),it(它)they(他們/她們/它們)第二部分：語法專練練習(xí)一：用am,is,are填空I________fromChina.She________mynewclassmate.Hername________Lucy.—________youtwelveyearsold?—Yes,I________.Myfather________adoctor.He________verybusy.We________inGradeSevennow.Thebooks________onthedesk.—________heyourEnglishteacher?—No,he________.He________ourmathsteacher.It________afinedaytoday.They________goodfriends.—How________you?—I________fine,thankyou.練習(xí)二：改為否定句Iamlate.→_____________________________SheisfromAmerica.→_____________________________3.Theyareinthelibrary.→_____________________________4.Itisanoldschool.→_____________________________5.Wearetired.→_____________________________練習(xí)三：改為一般疑問句，并作肯定和否定回答Heishappy.→Q:_____________________________?→A:Yes,_______________./No,_______________.Youareagoodstudent.→Q:_____________________________?→A:Yes,_______________./No,_______________.Thegirlsareintheplayground.→Q:_____________________________?→A:Yes,_______________./No,_______________.Myphoneisnew.→Q:_____________________________?→A:Yes,_______________./No,_______________.Iamright.→Q:_____________________________?→A:Yes,_______________./No,_______________.練習(xí)四：根據(jù)中文提示完成句子這是我的書包?！鶷his________myschoolbag.李老師很和藹?！鶰r.Li________verykind.他們不在這里?！鶷hey________________here.你是英國人嗎？→________________fromEngland?貓在桌子上嗎？不，不在?！猒_______thecatonthetable?—No,it________.第三部分：參考答案練習(xí)一：1.am2.is,is3.Are,am4.is,is5.are6.are7.Is,isn't,is8.is9.are10.are,am練習(xí)二：1.Iamnotlate.2.Sheisnot/isn'tfromAmerica.3.Theyarenot/aren'tinthelibrary.4.Itisnot/isn'tanoldschool.5.Wearenot/aren'ttired.練習(xí)三：1.Q:Ishehappy?A:Yes,heis./No,heisn't.2.Q:Areyouagoodstudent?A:Yes,Iam./No,I'mnot.3.Q:Arethegirlsintheplayground?A:Yes,theyare./No,theyaren't.4.Q:Isyourphonenew?A