初中英语人教版八年级上册Unit 2 Section A 1a-1c.ppt

一般现在时定义：1,表示经常性的事情，经常性的动作或一般性事实习惯性,永久性的动作或存在的状态2,表示客观真理，科学原理，自然现象，等客观事实或格言，谚语等。时间状语：often经常，usually通常，always总是，everyday(year,month.)，sometimes有时，once(twice,threetimes)aday只有在第三人称单数用动词的“三单变化”，其他用动词的原形。,第三人称单数变化：（1）直接在动词词尾加-s.ask-askswork-worksget-getsstay-stays（2）以字母s,x,ch,sh或o结尾的动词，在词尾直接加-es.watch-watcheswish-wishesfix-fixesdo-doesgo-goespass-passes（3）以“辅音字母加-y”结尾的动词，要先变y为i再加-es.try-triesstudy-studiescry-criesfly-flies2.不规则变化：have-has,Howoftendoyouexercise?,Unit2,Whatdoyouusuallydoonweekends?,Iusually,dohomework,playfootball,watchTV,gofishing,Whatdoyouusuallydoonweekends?,Iusually,usethecomputer,exercise,goshopping,dosomecleaning,read,always,Tony,MyFriendsActivities,A：WhatdoesTonydoonweekends？B：Healwaysdoeshishomework.,always,Bill,A：WhatdoesBilldoonweekends？B：HealwayswatchesTV.,usually,Bob,A：WhatdoesBobdoonweekends？B：Heusuallyplaysbasketball/exercises.,often,Gina,A：WhatdoesGinadoonweekends？B：Sheoftendoessomereading.,sometimes,A：WhatdoesTeddoonweekends？B：HesometimeswatchesTV.,hardlyever,A：WhatdoesMarydoonweekends？B：Shehardlyeverhelpswithhousework.Shehardlyeverdoeshousework.,Mary,Nancy,hardlyever,A：WhatdoesNancydoonweekends？B：Shehardlyevergoestothebeach.,A：WhatdoesTomdoonweekends？B：Hehardlyevergoesshopping.,Tom,hardlyever,never,May,A：WhatdoesMaydoonweekends？B：Sheneverexercises.,always_,usually_,often_,sometimes_,hardlyever_,never_,总是,通常,经常,有时,几乎不,从不,频率词,100%,always,usually,often,sometimes,hardlyever,80%,never,0%,60%,20%,5%,提示：频率副词在句中的位置是：实义动词之前,be动词或助动词之后。,never,hardlyever,sometimes,often,usually,always,Whatdoeshe/shedoonweekends?,He/She.,e.g.Shealwaysdancesonweekends.,Pairwork,1a,Lookatthepictures.Makealistofdifferentweekendactivities.,1._2._3._4._5._,goshopping=shop,dosomereading=read,exercise,watchTV,helpwithhousework,Listenandwritetheactivitiesfromthepictureaboveonthelinesbelow.always(100%)_usually_often_sometimes_hardlyever_never(0%)_,exercise,helpwithhousework,watchTV,goshopping,watchTV,goshopping,1b,read,Sun.MonTues.Wed.Thurs.Fri.Sat.,read,read,read,read,read,read,read,Ilikereading.,Shereadsbookseveryday.,Shealways(总是)readsbooks.,一周7次seventimesaweek,Sun.Mon.Tues.Wed.Thurs.Fri.Sat.,Ilikeskateboarding.,go,go,go,go,go,Heusually(通常)goesskateboarding.,Hegoesskateboardingfivetimes(次数)aweek.,Sun.Mon.Tues.Wed.Thurs.Fri.Sat.,TV,TV,TV,TV,Heoften(常常)watchesTV.,HewatchesTVfourtimesaweek.,IlikewatchingTV.,Ilikedoingexercise.,Sun.Mon.Tues.Wed.Thurs.Fri.Sat.,do,do,Hesometimes(有时)doesexercise.,Hedoe