七年级英语三种时态的用法以及辨析使用(课堂PPT).ppt

七年级三种时态的用法及辨析使用一般现在时的用法1.例如：Iamfifteen.Heis12.Sheisathome.Where’stheschoolbag?Ihavethreeping-pangballs2.如often,sometimes,always,everyday,onceaweek,onSaturdays等连用。例如：Igotoschoolat7:30everyday.“Where’stheschoolbag?”Tomalwaysasks.一般现在的用法Idon’tplaysports---IonlywatchthemonTV.----HowoftendoeshesurftheInternet?----HesurfstheInternettwiceaweek.3.表示主语具备的性格和能力等，例如：TheyknowEnglish.Sheisalwaysreadytohelpothers.Billlikesbeef,buthedoesn’tlikechicken.一般现在时的用法4.表示客观真理、科学事实、格言警句及其他不受时间限制的客观存在。例如：Ourphysicsteachersaidthatlighttravelsmuchfasterthansound.Threeplusfiveiseight.ShanghailiesintheeastofChina.5.在时间、条件状语从句中，用现在时表示将来的动作，从句的谓语动词用一般现在时。例如：ShewillemailyouassoonasshegetstoBeijing.Ifyoucomethisafternoon,wewillhaveameeting.巩固练习1.—Whatdoyouthinkofthemilk?—Oh,it(taste)good.2.Ifyou(notbe)carefulenoughintheexam,youwillnotgetagoodgrade.3.Inspring,sheoften(fly)kitesintheRedStarPark.4.Thiscafé(serve)afternoonteafromthreetofiveeverydayinEngland.5.----Whoisplayingthatpiano?----Mysister,whenshe______time.A.haveB.hasC.ishavingD.hashad一般过去时的用法MyfatherworkedinShanghailastyear.Hegotupat6:30yesterday.Theywereoverthereamomentago.Iwasnot(＝wasn't)hereyesterday.--Wheredidyougoonvacation?--Iwenttothemountains.一般过去时的用法Ioftenwenttoschoolonfoot.Healwayswenttoworkbybuslastyear.WhenIwasachild,Ioftenswamintheriver.Hesaidhewouldn’tgoifitrained.Hesaidhewouldletmeknowwhenhegottheinformation.一般过去时的用法Heputdowntheheavybox，tookoutthekeys，andopenedthedoor.Theymovedthechairstothetable，satdownandbegantohavesupper.巩固练习之句型转换1.Wehadsomedeliciousfoodthismorning.（改为一般疑问句)_____________________________________?2.Samwasalittleboyatthattime.（变为否定句）Sam____________________alittleboyatthattime.3.Hisfriendswereinthelibraryjustnow.（对划线部分提问）____________________hisfriendsjustnow?4.Weretheyveryhappyyesterday?（作否定回答）No,____________________.5.WasyourbrotherborninChongqing?（作肯定回答）Yes,____________________.巩固练习之能力提升1.—Howoldwereyouwhenyou（start）learningEnglish?—Tenyearsold.2.—Icalledyouyesterdayevening,butyouwerenotin.—Sorry,I________inth