7AUnit1Grammar-(2)VIP专享VIP免费

Grammar一般现在时(SimplePresentTense)一般现在时的用法Sandyismyclassmate.★表示现在存在的状态。Iamateacher.Youarestudents.Simonoftenplaysfootballafterclass.★表示经常性、习惯性的动作。Catseatfish.★表示客观事实或普遍真理。当我们谈论以下几种情况时,用一般现在时：1.表示现在存在的状态;2.表示经常性、习惯性的动作;3.表示客观事实或普遍真理。一般现在时用法小结例句：1.Iamateacher.2.Youarestudents.3.Wearegoodfriends.4.Theyareonthefootballfield.5.SimonandSandyareclassmates.6.Heisapoliteandhelpfulboy.......“be”动词的一般现在时形式有三种：am,is,are。你能自己总结吗？人称tobe形式happy.IYou/We/TheyHe/She/Itamareis缩写形式：I’mYou’re/We’re/They’reHe’s/She’s/It’s用法口诀：“我(I)”用am,“你(you)”用are,“is用于“他(he)”、“她(she)”、“它(it)”,复数人称都用“are”。Exercises:1.I_______anEnglishteacher.2.We_______intheclassroom.3.Ourschool_______big.4.You______middleschoolstudents.5.Theseflowers_______overthere.6.Eddie_______adog.7.Yourbrother_______inClass2,Grade3.8.Yourclassmates______ontheplaygroundnow.areisareisamareisareIamateacher.Iamnotastudent.Ourschoolisbig.Ourschoolisnotsmall.Weareintheclassroom.wearenotinthepark.“be”动词的一般现在时的否定形式：am,is,are+not你能自己总结吗？人称tobe形式happy.IYou/We/TheyHe/She/Itamnotarenotisnot缩写形式：arenot=aren’tisnot=isn’tamnot没有缩写形式Exercises:（写出be动词的否定形式）1.I_______amiddleschoolstudent.2.You_______22yearsold.3.Thelittlegirl_______verytall.4.We______fromtheUSA.5.Theseboys_______yourclassmates.6.Eddie_______ane-dog.arenotarenotisnotamnotarenotisnotIhappy?you/we/theyhe/she/itAmAreIsYes,Iyou/we/theyhe/she/itamareisYes,Iyou/we/theyhe/she/itamnotarenotisnot例句:(一)一般疑问句及其肯定回答和否定回答1.AmIthefirst?Yes,youare.No,youaren’t.2.Areyougoodatswimming?Yes,Iam./Yes,weare.No,I’mnot./No,wearen’t.3.IsSimontall?Yes,heis.No,heisn’t.巩固练习将下列句子变成(1)一般疑问句并作肯定和否定回答;(2)变成否定句。Wearegoodfriends.(1)Areyougoodfriends?Yes,weare./No,wearen’t.(2)Wearen’tgoodfriends.SimonandSandyareclassmates.(1)AreSimonandSandyclassmates?Yes,theyare./No,theyaren’t.(2)SimonandSandyaren’tclassmates.Herhairislong.(1)Isherhairlong?Yes,itis./No,itisn’t.(2)Herhairisn’tlong.Homework