人教版英語(yǔ)七年級(jí)上冊(cè)教案unit7單元語(yǔ)法精講精練?一、單元語(yǔ)法目標(biāo)1.掌握一般現(xiàn)在時(shí)的第三人稱單數(shù)形式（動(dòng)詞的變化規(guī)則）。2.學(xué)會(huì)使用一般現(xiàn)在時(shí)的第三人稱單數(shù)形式來(lái)描述客觀事實(shí)、習(xí)慣、愛(ài)好等。二、語(yǔ)法講解一般現(xiàn)在時(shí)的第三人稱單數(shù)形式1.定義：一般現(xiàn)在時(shí)表示經(jīng)常或習(xí)慣性的動(dòng)作，也可表示客觀事實(shí)或普遍真理。當(dāng)主語(yǔ)是第三人稱單數(shù)（he/she/it等）或單數(shù)名詞時(shí)，動(dòng)詞要用第三人稱單數(shù)形式。2.動(dòng)詞第三人稱單數(shù)形式的變化規(guī)則一般情況下，直接在動(dòng)詞原形后加s。例如：workworks，playplays，wantwants。以字母s,x,ch,sh結(jié)尾的動(dòng)詞，在詞尾加es。例如：passpasses，fixfixes，watchwatches，washwashes。以輔音字母+y結(jié)尾的動(dòng)詞，先把y變?yōu)閕，再加es。例如：studystudies，carrycarries，flyflies。以o結(jié)尾的動(dòng)詞，一般在詞尾加es。例如：gogoes，dodoes，tomatotomatoes，potatopotatoes。3.一般現(xiàn)在時(shí)第三人稱單數(shù)形式的肯定句結(jié)構(gòu)主語(yǔ)+動(dòng)詞第三人稱單數(shù)形式+其他。例如：Shelikesmusic.（她喜歡音樂(lè)。）Itlooksverybeautiful.（它看起來(lái)非常漂亮。）4.一般現(xiàn)在時(shí)第三人稱單數(shù)形式的否定句結(jié)構(gòu)主語(yǔ)+doesn't+動(dòng)詞原形+其他。例如：Hedoesn'tlikeapples.（他不喜歡蘋果。）Itdoesn'tlookgood.（它看起來(lái)不好。）5.一般現(xiàn)在時(shí)第三人稱單數(shù)形式的一般疑問(wèn)句結(jié)構(gòu)及回答一般疑問(wèn)句結(jié)構(gòu)：Does+主語(yǔ)+動(dòng)詞原形+其他？例如：Doesshelikereading?（她喜歡閱讀嗎？）肯定回答：Yes,主語(yǔ)+does.例如：Yes,shedoes.（是的，她喜歡。）否定回答：No,主語(yǔ)+doesn't.例如：No,shedoesn't.（不，她不喜歡。）用法示例1.描述客觀事實(shí)Theearthmovesaroundthesun.（地球繞著太陽(yáng)轉(zhuǎn)。）Waterboilsat100degreesCelsius.（水在100攝氏度時(shí)沸騰。）2.表達(dá)習(xí)慣或愛(ài)好Hegetsupat6:30everymorning.（他每天早上6:30起床。）Shelikesplayingbasketball.（她喜歡打籃球。）3.陳述現(xiàn)在的狀態(tài)Itlookslikerain.（看起來(lái)要下雨了。）Sheseemsveryhappytoday.（她今天看起來(lái)很開心。）三、語(yǔ)法練習(xí)一、寫出下列動(dòng)詞的第三人稱單數(shù)形式1.have________2.eat________3.run________4.swim________5.study________6.play________7.do________8.go________9.watch________10.wash________11.fly________12.carry________13.brush________14.teach________15.fix________答案：1.has2.eats3.runs4.swims5.studies6.plays7.does8.goes9.watches10.washes11.flies12.carries13.brushes14.teaches15.fixes二、用所給動(dòng)詞的適當(dāng)形式填空1.He________(like)readingbooks.2.She________(notgo)toschoolbybike.3.It________(look)verycute.4.Myfather________(work)inafactory.5.Tom________(do)hishomeworkeveryevening.6.Thegirl________(play)thepianowell.7.Lily________(notlike)vegetables.8.Thesun________(rise)intheeast.9.Mymother________(cook)breakfastforuseverymorning.10.They________(go)totheparkonweekends.答案：1.likes2.doesn'tgo3.looks4.works5.does6.plays7.doesn'tlike8.rises9.cooks10.go三、按要求改寫句子1.IlikeEnglish.（改為一般疑問(wèn)句）2.Shehaslunchatschool.（改為否定句）3.Theyplayfootballafterschool.（對(duì)劃線部分提問(wèn)）4.Hegoestobedat9:00.（對(duì)劃線部分提問(wèn)）5.MysisterwatchesTVeveryevening.（改為一般疑問(wèn)句并作肯定回答）答案：1.DoyoulikeEnglish?2.Shedoesn'thavelunchatschool.3.Whatdotheydoafterschool?4.Whattimedoeshegotobed?5.DoesyoursisterwatchTVeveryevening?Yes,shedoes.四、單項(xiàng)選擇1.She________anewdresseverymonth.A.buyB.buysC.isbuyingD.bought2.Mybrother________footballonSundays.A.playB.playsC.isplayingD.played3.It________verynice.A.lookB.looksC.islookingD.looked4.________helikeapples?A.DoB.DoesC.IsD.Are5.Mymother________dinnerat6:00everyday.A.cookB.cooksC.iscookingD.cooked答案：1.B2.B3.B4.B5.B五、根據(jù)漢語(yǔ)意思完成句子1.他每天步行去上學(xué)。He________________schoolonfooteveryday.2.她喜歡唱歌和跳舞。She________singinganddancing.3.我爸爸不喜歡看電視。Myfather________________watchingTV.4.它看起來(lái)像一只貓。It________________acat.5.他經(jīng)常在周末打籃球嗎？________heoften________basketballonweekends?答案：1.goesto2.likes3.doesn'tlike4.lookslike5.Does;play四、課堂總結(jié)1.回顧一般現(xiàn)在時(shí)第三人稱單數(shù)形式的變化規(guī)則，讓學(xué)生再次熟悉動(dòng)詞在不同情況下的變形。2.總結(jié)一般現(xiàn)在時(shí)第三人稱單數(shù)形式的肯定句、否定句和一般疑問(wèn)句的結(jié)構(gòu)及用法，通過(guò)課堂練習(xí)中的例句和學(xué)生的回答，強(qiáng)化學(xué)生對(duì)這些語(yǔ)法結(jié)構(gòu)的理解和運(yùn)用能力。3.強(qiáng)調(diào)一般現(xiàn)在時(shí)在描述客觀事實(shí)、習(xí)慣愛(ài)好等方面的重要性，鼓勵(lì)學(xué)生在日常生活中多運(yùn)用該時(shí)態(tài)進(jìn)行英語(yǔ)表達(dá)。五、課后作業(yè)1.用所給動(dòng)詞的適當(dāng)形式填空Myfriend________(go)toschoolbybus.He________(notlike)math.She________(read)bookseverynight.It________(take)meanhourtodomyhomework.They________(play)gamesafterclass.2.按要求改寫句子Iusuallygetupat7:00.（改為一般疑問(wèn)句）Hehasbreakfastathome.（改為否定句）Shelikesplayingtennis.（對(duì)劃線部分提問(wèn)）Theygotothemoviesonweekends.（對(duì)劃線部分提問(wèn)）Mys