行为动词一般现在时课件

,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,行为动词（一般现在时）,1,行为动词（一般现在时）1,一、什么是行为动词,行为动词指除动词,be,和,have,以外，一切可以单独作谓语的动词。动词,be,和动词,have,一般表示状态，而行为动词大都用来表示动作，如,work,，,study,，,swim,等。,2,一、什么是行为动词行为动词指除动词be和have以外，一切可,二、行为动词一般现在时的构成,行为动词一般现在时须用动词原形表示，但当主语是第三人称单数时，词尾须加,-s,或,-es,，其构成方法与名词复数构成方法相同，现以动词,work,为例：,I,You,（你）,He,She,It,We,You,（你们）,They,work.,works.,work.,3,二、行为动词一般现在时的构成行为动词一般现在时须用动词原形表,三、行为动词一般现在时的基本用法,1,）表示现在经常发生或习惯性的动作或状态：,I usually walk to school.,They work here.,My grandfather watches TV every evening.,He goes to school by bus.,2,）表示客观事实或普遍真理：,The sun rises in the east.,The earth moves round the sun.,Two plus two makes four.,4,三、行为动词一般现在时的基本用法1）表示现在经常发生或习惯性,3,）表示主语的特征、性格、能力等：,She sings well.,John and I love sports.,We work hard.,They all like me.,注意：英语中的人称代词有主格和宾格之分。主格人称代词在句中作主语；宾格人称代词作动词或介词宾语。一般现在时还常用在下列句子中：,Here comes the bus.,Here he comes.,There goes the bell.,5,3）表示主语的特征、性格、能力等：5,四、行为动词一般现在时第三人称,单数形式的构成,行为动词一般现在时的第三人称单数形式的构成,方法和名词复数的构成方法完全一样。,1,）一般在动词原形后加,s,：,work,works,run,runs,live,lives,6,四、行为动词一般现在时第三人称行为动词一般现在时的第三人称单,2,）以,s,x, sh, ch,结尾的动词加,es,：,finish,finishes,teach,teaches,watch,watches,guess,guesses,fix,fixes,mix,mixes,7,2）以s, x, sh, ch结尾的动词加es：finis,4,）如词末为,o,，,o,前为辅音字母，加,es,：,go,goes,do,does,3,）以辅音字母加,y,结尾的动词变,y,为,i,再加,es,：,carry,carries,fly,flies,但,play,plays,的,y,之前是元音字母，只加,s,。,8,4）如词末为o，o前为辅音字母，加 es：go g,五、常与一般现在时搭配使用的时间状语,1,）表示时间频度的词语：,always,usually,often,sometimes,hardly,never,9,五、常与一般现在时搭配使用的时间状语1）表示时间频度的词语：,2,）与,every,一起用的状语词组：,every,day,week,month,spring,year,Monday,every other day (=every two days),every three hours,once every two months,3,）其他,in,the morning,the afternoon,the evening,twice a week,10,2）与every一起用的状语词组：everydayevery,第,5,讲 行为动词,要点,6,一般现在时的否定式,一般现在时的否定式是在动词原形前加助动词,do not (dont ),；,主语是第三人称单数时在动词原形前加助动词,does not (doesn,t),，其结构为：,1,）主语,+ don,t+,动词原形,They,don,t,work here.,I,don,t,go to school on Sundays.,2,）主语,(,第三人称单数,)+ doesn,t+,动词原形,She,doesn,t,like sports.,The boy,doesn,t,study hard.,11,第5 讲 行为动词要点6 一般现在时的否定式11,第,5,讲 行为动词,*,如句中用了,never,（从不），,hardly,（很少、几乎不）等词来表示否定意义，就不能再使用助动词,don,t,或,doesn,t ,试比较：,I,don,t,know you.,I,hardly,know you.,I don,t hardly know you.,(F),12,第5 讲 行为动词*如句中用了never（从不），hardl,第,5,讲 行为动词,一般现在时用,never , hardly,表示否定意义时，如主语为第三人称单数，行为动词要加,-s,或,-es,。试比较：,He,never,get,s,up early.,He,hardly,get,s,up early.,He,doesn,t get,up early on Sundays.,The girl,hardly,go,es,to school by bus.,The girl,doesn,t,go,to school by bus.,另外，为了加强否定意义可在否定句中加,at all,如,I,don,t,like the book,at all,.,13,第5 讲 行为动词一般现在时用never , hardly,第,5,讲 行为动词,要点,7,行为动词一般现在时的疑问式和回答,一般现在时的疑问式在句首加助动词,do,主语为第三人称单数时在句首加,does,其结构是：,Do +,主语,+,动词原形,?,They live near our school.,Do,they live near our school?,The students like learning English.,Do,the students like learning English?,14,第5 讲 行为动词要点7 行为动词一般现在时的疑问式和回答1,第,5,讲 行为动词,2)Does +,主语（第三人称单数）,+,动词原形,?,He watch,es,TV every evening.,Does,he watch TV every evening?,My father teach,es,Chinese.,Does,your father teach Chinese?,简略回答用助动词,do/does,和,don,t/doesn,t,代替行为动词,.,Do you often go shopping with your mother?,-Yes, I,do,. / -No, I,don,t,.,Does his mother work in that factory?,-Yes,she,does,. / -No,she,doesn,t,.(,回答时须用人称代词,),15,第5 讲 行为动词2)Does + 主语（第三人称单数）+,第,5,讲 行为动词,要点,8,用作助动词的,do,与用作行为动词的,do,在英语中，,do,既是一个助动词，又是一个行为动词。,1)do,用作行为动词一般表示,“,做,”,、,“,干,”,等意思，,We,do,morning exercises every day.,Jack often,does,some washing on Sundays.,She never,does,her homework in the evening.,2)do,用作助动词主要用来帮助构成疑问句、否定句或用于替代等。,Do,you drive to work every day ?(,帮助构成疑问句,),He,doesn,t,work on Sundays.(,帮助构成否定句,),Does,he like the job?,Yes, he,does,.(,用于替代,),16,第5 讲 行为动词要点8 用作助动词的do与用作行为动词的d,第,5,讲 行为动词,*,区别,do,在以下句子中的不同功能,Do,you,do,your lessons every day?,The students,don,t,do,their homework on Saturdays.,17,第5 讲 行为动词*区别do在以下句子中的不同功能17,写出下列动词在句中的适当形式：,1,）,We _ (love) sports.,2,）,She _ (sing) well.,3,）,Tom and John _ (watch) TV every evening.,4,）,My son _ (go) to school by bike.,5,）,Their teacher usually _ (walk) to school.,6,）,Five plus two _ (make) seven.,7,）,They all _ (like) him.,8,）,The sun _ (fall) in the west.,Practice,love,sings,watch,goes,walks,makes,like,falls,18,写出下列动词在句中的适当形式：1）We _,4,）,His father and mother like watching TV.,5,）,She does her homework in the evening.,6,）,The students do morning exercises every day.,将下列句子改为否定句和疑问句：,1,）,They work in a factory.,2,）,Mary likes sports.,3,）,The boys go to school on foot.,19,4）His father and mother like w,