Unit2语法专项课件一般现在时沪教版英语七年级上册

教学课件沪教（牛津）英语七年级上册Unit2语法专项——一般现在时

全解精讲+分层练习

学习目标1.掌握一般现在时的三大核心用法，能区分不同场景的运用。2.熟练掌握肯定句、否定句、疑问句的正确结构。3.牢记动词第三人称单数（-s/-es）的变化规则。4.掌握频度副词/短语的用法及正确位置。5.能完成单选、句型转换、填空、情景对话等多样题型。6.能运用一般现在时描述习惯、事实和现在状态。一般现在时—核心定义一般现在时（Thesimplepresent）是英语基础时态。主要用于描述经常性、习惯性的动作或客观事实。也可用于描述现在的状态、能力或喜好。它不受具体时间限制，强调动作的规律性和稳定性。常与频度副词（always,usually）、频度短语（everyday）搭配。核心用法1—描述习惯性、经常性动作用于表达日常规律、反复发生的行为，有固定频率。常搭配频度副词（always,usually,often,sometimes）或频度短语。主语无论人称，动作都具有重复性和规律性。例句：Iwalktoschooleveryday.（我每天步行上学。）例句：Heusuallygetsupat7:45a.m.（他通常早上7:45起床。）核心用法2—描述客观事实、普遍真理用于表达不受时间、地点限制的客观事实或科学真理。这类句子的时态永远用一般现在时，不会随语境变化。主语多为单数名词（如theEarth）或不可数名词。例句：TheEarthgoesaroundtheSun.（地球绕着太阳转。）例句：Waterboilsat100degreesCelsius.（水在100摄氏度沸腾。）核心用法3—描述现在的状态或能力用于表达当前的状态、喜好、情感或具备的能力。动作不强调频率，只说明当前的情况。常与be动词、like,love,can等词搭配。例句：IlikeEnglishverymuch.（我非常喜欢英语。）例句：ShecanspeakEnglishwell.（她英语说得很好。）动词形式—肯定句结构（重点）肯定句分两种情况，核心区别在主语人称和动词形式。1.主语是I,you,we,they（第一、二人称及复数）：动词用原形。例句：Istartschoolat8:00a.m./Theyhavedinnerat7:00p.m.2.主语是he,she,it（第三人称单数）：动词变三单（+s/-es）。例句：Hestartsschoolat9:00a.m./Itrainsalotinsummer.动词第三人称单数—变化规则1大部分动词变三单，直接在词尾加-s。play→playswork→worksstart→startsread→readswalk→walksmeet→meets注意：动词结尾是清辅音，-s读/s/；浊辅音/元音，-s读/z/。例句：Heplaysfootballafterschool./Shereadsbookseverynight.动词第三人称单数—变化规则21.以s,x,ch,sh,o结尾的动词，词尾加-es。do→doesgo→goeswatch→watches2.以“辅音字母+y”结尾的动词，变y为i再加-es。study→studiesfly→fliesworry→worries例句：Hedoeshishomeworkeveryday./Shestudieshard.动词第三人称单数—不规则变化少数动词变三单是不规则的，需单独记忆，高频考点。have→has（最常用，务必牢记）例句：Hehasanewpen./Mymotherhasdinnerat6:30.注意：其他动词均遵循前面的规则，无额外不规则变化。动词形式—否定句结构否定句需借助助动词do/does，核心是“助动词+not+动词原形”。1.主语I,you,we,they：用donot（缩写为don’t）+动词原形。例句：Idon’twalktoschool./Theydon’teatoutoften.2.主语he,she,it：用doesnot（缩写为doesn’t）+动词原形。例句：Hedoesn’twalktoschool./Shedoesn’tlikecoffee.动词形式—疑问句结构疑问句同样借助助动词do/does，需将助动词提前。1.主语I,you,we,they：Do+主语+动词原形？例句：Doyouwalktoschool?/Dotheyhavedinnerat7:00?2.主语he,she,it：Does+主语+动词原形？例句：Doeshewalktoschool?/DoesshelikeEnglish?注意：疑问句中，does后面的动词必须用原形。频度副词—用法及位置（重点）常用频度副词（按频率从高到低）：always,usually,often,sometimes,seldom,never。核心位置：实义动词前，be动词/助动词后。例句：Heusuallygetsupat7:45a.m.（实义动词前）例句：Sheisoftenlateforschool.（be动词后）例句：Theydon’tofteneatout.（助动词后）频度短语—用法及位置常用频度短语：everyday,everyMonday,onceaweek,twiceamonth等。核心位置：通常放在句末，有时也可放在句首（强调频率）。例句：Jacktakespartinafter-schoolactivitieseveryMonday.（句末）例句：Everyday,Igotoschoolonfoot.（句首，加逗号）注意：频度短语不影响动词的形式变化。基础训练1—动词三单形式填空1.I________(walk)toschooleveryday.2.He________(get)upat7:45a.m.3.She________(meet)herfriendsat8:15a.m.4.It________(rain)alotinspring.5.They________(have)dinneraround7:00p.m.6.Mymother________(go)tothesupermarketeveryweek.walkgetsmeetsrainshavegoes基础训练2—否定句改写1.Iwalktoschool.

I________

walktoschool.2.Hegetsupat7:45a.m.

He__________getupat7:45a.m.3.Theyhavedinnerat7:00p.m.

They________

havedinnerat7:00p.m.4.ShelikesEnglish.

She______________likeEnglish.don’tdoesn’tdon’tdoesn’t基础训练3—疑问句改写1.Iwalktoschool.

____________youwalktoschool?2.Hegetsupat7:45a.m.

____________hegetupat7:45a.m.?3.Theyhavedinnerat7:00p.m.

____________theyhavedinnerat7:00p.m.?4.Shegoestobedearly.

____________shegotobedearly?DoDoesDoDoes单项选择11.Tomusually________upat7:30a.m.A.getB.getsC.gotD.getting2.We________toschoolonfooteveryday.A.goB.goesC.wentD.going3.________yourfathergotoworkbycar?A.DoB.DoesC.DidD.Doing4.Mymother________watchTVintheevening.Sheisbusy.A.don’tB.doesn’tC.isn’tD.aren’tBABB5.heEarth________aroundtheSun.A.goB.goesC.wentD.going6.He________eatsfastfood.It’sbadforhishealth.A.alwaysB.usuallyC.oftenD.never7.Howoften________youandyourfamilyeatout?A.doB.doesC.didD.doing8.She________oftengototheparkonweekends.A.don’tB.doesn’tC.isn’tD.aren’tBDAB句型转换（对划线部分提问）1.Jackgetsupat7:45a.m.

________________doesJack________up?2.Hemeetshisfriendsat8:15a.m.________________he________at8:15a.m.?3.heyhavedinneraround7:00p.m.________________they________dinner?4.Sheseldomeatsout.

________________________sheeatout?5.Iwalktoschool.（用he改写句子）He________toschool.6.Hedoeshishomeworkafterschool.

________________he________afterschool?WhattimegetWhatdoesdoWhendohaveHowoftendoeswalksWhatdoesdo完成句子1.杰克通常早上7:45起床。Jackusually________(get)upat7:45a.m.2.他经常在早上8:15会见他的朋友。Heoften________(meet)hisfriendsat8:15a.m.3.学校总是在早上9:00开始上课。Schoolalways________(start)at9:00a.m.4.我每天步行去上学。I________(walk)toschooleveryday.getsmeetsstartswalk5.他和他的父母通常在晚上7点左右吃晚饭。Heandhisparentsusually________(have)dinneraround7:00p.m.6.他们很少出去吃饭。Theyseldom________(eat)out.7.她从不晚睡。Shenever________(go)tobedlate.8.他每天放学后做作业。He________(do)hishomeworkafterschool.haveeatgoesdoes情景对话

A:Hi,Lily.1.________timedoyouusuallygetup?B:Iusuallygetupat7:30a.m.A:How2.________yougotoschool?B:Igotoschoolbybikewithmyclassmates.A:When3.________schoolstart?B:Itstartsat9:00a.m.A:What4.________youdoeveryMonday?B:Itakepartinthemusicclubafterschool.Whatdodoesdo情景对话2

A:Hi,Tom.How5.________doyoueatoutwithyourfamily?B:Seldom.Weusuallyhavedinnerathome.A:What6.________yourmotherdoeveryweekend?B:Sheusuallygoesshoppinginthesupermarketnearourhome.A:7.________youlikeEnglish?B:Yes,Ido.It’sveryinteresting.A:DoyouoftenreadEnglishbooks?B:Yes,I8.________readthemeveryevening.oftendoesDooften高频易错点总结（一）1.主语三单时，动词必须变三单，不能用原形。错误：Hegetuplate.正确：Hegetsuplate.2.否定句、疑问句中，助动词用does后，动词必须用原形。错误：Doeshegetsuplate?正确：Doeshegetuplate?3.频度副词位置错误，需放在实义动词前、be动词/助动词后。错误：Hegoesoft