初中英语_一般现在时_过去时_现在进行时_讲解

现在进行时一，现在进行时的构成现在进行时由be+v-ing构成。be应为助动词，它应与主语的人称和数保持一致。动词后加－ing的规则1.直接加-ing2以-e结尾一般应去掉e再加ingwritehopecarehavesaveproducebreathewritinghopingcaringhavingsavingproducingbreathing3.重读闭音节加一辅音结尾的，最后一个字母需重复runstopplansitcontrolbegincutswimrunningstoppingplanningsittingcontrollingbeginningcuttingswimming4特殊die—dying，tie—tying，lie—lyinggettingputtingshoppinggetputshop二，基本用法肯定句式：主语+be(am,is,are)+现在分词+其它.否定句式：主语+be(am,is,are)+not+现在分词+其它１说话时正在进行的动作我们正在等你Wearewaitingforyou.Theyareplayingbasketballnow.现在他们正在打篮球Listen！SheissinginganEnglishsong.听，她正在唱英语歌。２现阶段正在进行而说话时不一定在进行的动作Weareworkinginafactorythesedays.这几天我们在一家工厂工作他在写另一部小说Heiswritinganothernovelnowatthepresentatthemomenttoday，thisweekthesedays一般疑问句：Be(am,is,are)+主语+现在分词+其它？特殊疑问句：疑问词+be(am,is,are)+主语+现在分词+其它？Aretheyplayingbasketballnow?Wherearetheyplayingbasketballnow?3.现在进行时与alwaysusuallycontinuallyforever等副词连用时带有感情色彩二，基本用法Youarealwayschangingyourmind.你老是改变主意。Theboyisforeveraskingquestions.那个男孩老是问问题。Sheisconstantlyworryingaboutherson'shealth.她不停地为她儿子的健康担心着一般现在时构成1.be动词：主语+be(am,is,are)+其它。如：Iamaboy.我是一个男孩。2.行为动词：主语+行为动词(+其它)。如WestudyEnglish.我们学习英语1如果主语是名词复数和第一人称I、we，谓语动词不用变化，仍然用动词原型表示一动词的变化规则我们通常7:30上学去Weusuallygotoschoolat7:30Myparentsgivetenyuantomysistereveryweek.我父母每星期给我妹妹十元钱。2如果主语是单数名词第三人称单数和不可数名词，谓语动词要变化一动词的变化规则（1）．一般情况下，直接加-s（2）．以s.x.sh.ch.o结尾，加-es（3）．以“辅音字母+y”结尾，变y为i,再加-es写出下列动词的第三人称单数talk______forget______hope______stop______perform______play______say______buy______worry______fly______study_______like_______make______take______love_______recite_______become_______come_______drive_______shine_______write_______hike______give______see______stop______shop_______plan______get_______sit_______let_______cut_______run_______forget_______begin_______wash_____watch_______finish______teach_____fish_______reach_______go_______do_____（4）.特殊变化的词be(是)-am,is,arehave(有)-hashave,二基本用法1.表示事物或人物的特征、状态。如：Theskyisblue.天空是蓝色的。3)陈述客观事实、客观真理。顾名思义，客观的情况是没有时间概念的；也不会在意动作进行的状态。例如：Thesunrisesintheeast.日出东方。Theearthgoesaroundthesun.地球绕着太阳转。Tenminustwoiseight.十减二等于八。Lighttravelsfasterthansound.光的速度比声音的速度快。TheUnitedStatesliesbythewestcoastofthePacificOcean.美国位于太平洋西岸。2.表示经常性或习惯性的动作。如：Igetupatsixeveryday.我每天六点起床。常用的时间词语always,usually,often,sometimes，twiceaweek,•4)根据英文语法规定，当主句的谓语动词是一般将来时，那么时间或条件状语从句的谓语动词只能用一般现在时来表示将来要发生的动作。例如：•I'lltellhimthenewswhenhecomesback.他回来时，我将告诉他这个消息。•Ifyoutakethejob,theywilltalkwithyouingreaterdetails.•如果你接受这份工作，他们将和你谈谈细节。•用于一般现在时的副词，除了上面提到的一些表示频率的以外，常见的还有：now,today,nowadays等等。他是工人HeisaworkerHeisnotaworkerIsheaworker?1.be动词：主语+be+其它(肯）主语+be+not+其它（否）Be+主语+其它？他们放学后踢足球theyplaybasketballafterschooltheydon’tplaybasketballafterschoolDotheyplaybasketballafterschool？2行为动词：主语+行为动词(+其它)主语+don't(doesn't)+动词原形(+其它)Do(Does)+主语+动词原形+其它肯定式疑问式否定式否定疑问式Iwork.Doyouwork?Idonotwork.Don'tyouwork?Youwork.Doyouwork?Youdonotwork.Don'tyouwork?Wework.Doyouwork?Wedonotwork.Don'tyouwork?Theywork.Dotheywork?Theydonotwork.Don'ttheywork?He(She,It)works.Doeshe(she,it)work?He(She,It)doesnotwork.Doesn'the(sheit)work?二、用括号内动词的适当形式填空。1.Heoften________(have)dinnerathome.2.DanielandTommy_______(be)inClassOne.3.We_______(notwatch)TVonMonday.4.Nick_______(notgo)tothezooonSunday.5.______they________(like)theWorldCup?6.What_______theyoften_______(do)onSaturdays?7._______yourparents_______(read)newspaperseveryday?8.Thegirl_______(teach)usEnglishonSundays.9.SheandI________(take)awalktogethereveryevening.10.There________(be)somewaterinthebottle.11.Mike_______(like)cooking.13.Myaunt_______(look)afterherbabycarefully.14.Youalways_______(do)yourhomeworkwell.15.I_______(be)ill.I'mstayinginbed.16.She_______(go)toschoolfromMondaytoFriday.17.LiuTao_______(do)notlikePE.18.Thechildoften_______(watch)TVintheevening.19.SuHaiandSuYang_______(have)eightlessonsthisterm.20.－Whatday_______(be)ittoday?－It'sSaturday.21Weoften___________(play)intheplayground.22.He_________(get)upatsixo'clock.1has2are3doesn'twatch4doesn'tgo5Dolike6dodo7Doread8teaches9take10is11likes13look/islooking14do15am16goes17does18watches19have20is21play22gets•19.SuHaiandSuYang_______(have)eightlessonsthisterm.•20.－Whatday_______(be)ittoday?－It'sSaturday.•21Weoften___________(play)intheplayground.•22.He_________(get)upatsixo'clock.•23.________you__________(brush)yourteetheverymorning?•24.What________(do)heusually________(do)afterschool?•25.Danny____________(study)English,Chinese,math,scienceandartatschool.•26.Mikesometimes__________(go)totheparkwithhissister.•27.Ateightatnight,she____________(watch)TVwithherparents.•28.________Mike_________(read)Englisheveryday?•29.Howmanylessons_________yourclassmate_________(have)onMonday?•30.Whattime_________hismother_________(do)thehousework?1.DanielwatchesTVeveryevening.(改为否定)_________________________2.Idomyhomeworkeveryday.(改为一般疑问句，并作否定回答)________________________________________________________3.Shelikesmilk.(改为一般疑问句，并作肯定回答)___________________________4.Amylikesplayingcomputergames.(改为一般疑问句，并作否定回答)___________________________________________________5.Wegotoschooleverymorning.(改为否定句)____________________________6.HespeaksEn