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1、一般现在时态与一般过去时态的区别一.一般现在时的概念:1.(1)表示经常性或习惯性的动作或存在的状态。如:Ioftengotoschoolbybike.(2)表示客观事实或普遍真理。如:Theearthgoesaroundthesun.(3)在时间、条件等状语从句中,用现在时表示将来。如:Ifitraintomorrow,wewon’tgotothepark.WhenIgrowup,IwillgotoAmerica.(4)在某些以here,there开头的句子中用一般现在时表示正在发生的动作。如:Theregoesthebell.铃响了。2
2、.与一般现在时连用的时间状语(1)表示频度的副词always,often,usually,sometimes等。(2)onSundays,onMondayafternoon,everyday,inthemorning,everyyear等时间状语。(3)onceayear,twiceamonth,threetimesaweek之类的表示频率的词组。3.一般现在时的构成其主要用“系动词be”和“实义动词”表示,如果主语是第三人称单数则将动词原形变为第三人称单数形式。二.一般过去时的概念:1.(1)表示过去某时间发生的动作或存在的状态。如:Ig
3、otupatsixthismorning.Wevisitedthefactorylastweek.(2)表示过去的习惯或经常发生的动作。(过去常常做某事也可用usedtodosth来表示)如:WhenIwasinthecountryside,Ioftenswamintheriver.2.与一般过去时连用的时间状语lastnight,lastweek,yesterday,yesterdaymorning/afternoon/evening,someyearsago,in1995,inthepast,theotherday,atthattime
4、,justnow,aftertwodays等。3.一般过去时的构成类别构成方法例词读音规则一般情况加-edlook--lookedplay--playedstart--started清辅音后面读作/t/;浊辅音和元音后面读作/d/;/t/和/d/后面读作/id/。以e结尾的动词加-dlive-livedhope--hopeduse--used以重读闭音节结尾的动词,末尾只有一个辅音字母双写这个辅音字母,再加--edStop--stoppedPlan--planned以辅音字母加y结尾的动词变y为i,再加--edstudy--studiedc
5、arry--carriedworry--worried其主要用动词的过去式表示,并且过去式无人称和数的变化,即它不随主语变化。动词的过去式分为有规则变化和无规则变化两种情况。无规则动词的过去式:原形过去式原形过去式原形过去式am/iswasarewerebringbroughtbuyboughtcomecamecutcutbo/doesdiddrawdrewdrinkdrankdrivedroveeatatefeedfedfeelfeltFightfoughtfindfoundflyflewforgetforgotgetgotgowent三
6、.习题训练:1.Hedoesn’tfeelwelland_________(noteat)anyfoodthismoring.2.--When______you________(write)thispoem?--I_______(write)itlastyear.3.--What_______Bill_______(do)onSaturdayafternoon?--He_______(play)soccerand_________(read)aninterestingbook.4.He_________(notsee)mecomein,fo
7、rhe________(read)somethingwithgreatinterest.5.Who_______(dance)thebestinyourclass?6.Myfriend,Lucy,________(study)forthemathtestand_______(practice)Englishlastnight.7.Mr.Zhang_______(teach)usEnglishthreeyearsago.8.--Guesswhat!IsawSallyinLondon.---Really?I_______(think)shewa
8、sinNewYork.9.Ioften________(ride)abiketoschoolinthepast,butnowI______(take)abustoschool.1