一般現(xiàn)在時(shí)ppt講解.ppt

I am a teacher.,I have many students.,Yesterday, I had 4 lessons.,I always helps my students to solve problem.,以上的句子都是一般現(xiàn)在時(shí)嗎？它們有什么特征？,1、I am a teacher. 2、He is a student. 3、You are a boy. 4、I can swim.,一般現(xiàn)在時(shí) （肯定句）,哪些主語(yǔ)是第三人稱(chēng)單數(shù)?,主語(yǔ)為第三人稱(chēng)單數(shù)，動(dòng)詞要按規(guī)則加上s或es，,一、he, she, it是第三人稱(chēng)單數(shù)。,He likes watching TV. 他喜歡看電視。 She has lunch at twelve. 她十二點(diǎn)吃午餐。 It looks like a cat. 它看起來(lái)像只貓。,二、單個(gè)人名、地名或稱(chēng)呼作主語(yǔ)；是第三人稱(chēng)單數(shù)。,Han Mei looks like her mother. 韓梅看起來(lái)像她的母親 Beijing is in China. 北京在中國(guó)。 Uncle Wang often makes cakes. 王叔叔經(jīng)常做蛋糕。,A panda is a shy animal. 熊貓是害羞的動(dòng)物。 This book is yellow. 這本書(shū)是黃色的。 That car is red. 那輛小汽車(chē)是紅色的。 The cat is black. 這只貓是黑色的。,三、單數(shù)可數(shù)名詞或“this / that / the+單數(shù)可數(shù)名詞“作主語(yǔ)時(shí)，是第三人稱(chēng)單數(shù)。,動(dòng)詞+s的變化規(guī)則 1一般情況下，直接加-s， 如：stop-stops, come-comes 2 以s. x. sh. ch. o結(jié)尾，加-es，如：do-does, watch-watches, go-goes 3以“輔音字母+y”結(jié)尾，變y為i, 再加-es， 如：study-studies,一般現(xiàn)在時(shí) （否定句）,1、I am a teacher.否：I am not a teacher. 2、He is a student.否： He is not a student. 3、You are a boy.否： You are not a boy. 4、I can swim.否： I can not（cant) swim.,否定句在be動(dòng)詞和情態(tài)動(dòng)詞后加not,一般現(xiàn)在時(shí) （否定句）,無(wú)be動(dòng)詞或情態(tài)動(dòng)詞時(shí) 主語(yǔ)第三人稱(chēng)單數(shù) 動(dòng)詞前加does not (doesnt) 主語(yǔ)是非單三 動(dòng)詞前加 do not（dont),一般現(xiàn)在時(shí) （否定句）,1、I to school by bus. 否： I to school by bus. 2、He to school by bus. 否：He to school by bus.,go,dont go,goes,doesnt go,用一般現(xiàn)在時(shí)態(tài)描述下your good friend Mike,一般現(xiàn)在時(shí) （疑問(wèn)句）,有be動(dòng)詞或情態(tài)動(dòng)詞時(shí) be動(dòng)詞或情態(tài)動(dòng)詞can提前，首字母變?yōu)榇髮?xiě)；some 變any,一般現(xiàn)在時(shí) （一般疑問(wèn)句）,He is a student. You are a boy. Is he a student？ Are you a boy？ I can swim. I am a teacher. Can you swim？ Are you a teacher？,一般現(xiàn)在時(shí) （一般疑問(wèn)句）,1、I to school by bus. 疑問(wèn)句： you to school by bus. 2、He to school by bus. 疑問(wèn)句： he to school by bus.,Does,go,goes,go,go,Do,特殊疑問(wèn)句,時(shí)間：when 地點(diǎn)：where 人：who 物：what 狀態(tài)：how 年齡：how old 價(jià)錢(qián)：how much 數(shù)量：how many,特殊疑問(wèn)句,有be動(dòng)詞或情態(tài)動(dòng)詞: 疑問(wèn)詞+be or 情態(tài)動(dòng)詞+主語(yǔ)+其它,特殊疑問(wèn)句,She can speak English. What can she speak？ He is ten. How old is he？ He is at home. Where is he ？ Its 3 dollars. How much is it?,特殊疑問(wèn)句,沒(méi)有be動(dòng)詞或情態(tài)動(dòng)詞： 疑問(wèn)詞+do（does）+主語(yǔ)+動(dòng)詞原形+其它,特殊疑問(wèn)句（時(shí)間）,He goes to school at seven. When does he go to school？,單數(shù)第三人稱(chēng)：,非單數(shù)第三人稱(chēng)：,I go to school at six. When do you go to school？,特殊疑問(wèn)句（地點(diǎn)）,He has lunch at school. Where does he have lunch？,單數(shù)第三人稱(chēng)：,非單數(shù)第三人稱(chēng)：,Children have lunch at school. Where do children have lunch？,特殊疑問(wèn)句（狀態(tài)）,He go