一般现在时讲解课件

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,11/7/2009,#,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,*,动词时态练习题,一般现在时,一、定义：,一般现在时表示经常或习惯性,的动作，也可表示现在的状态或主语具备的性格和能力。,1)经常性、习惯性的动作或存在的状态。,e.g.I go to school on foot.,He is very busy now.,2),表示主语的特征、性格、能力、爱好等。,e.g.,He can swim.,I work hard.,I like watching TV.,3),表示客观真理,e.g.,There are seven days in a week.,The moon moves round the earth.,结构：,按正常语序，,主语+谓语+其它,有时为了起强调作用，时间状语也可提前.,二、用法,1,肯定句：,一般现在时中，没有,be,动词和情态动词，主语为第三人称单数（,she,he,it,）、单数可数名词、不可数名词的，动词要按规则加上,s,或,es,。,主语是复数可数名词的肯定句，动词用原形。,例：,She（He,It）likes fish.她（他，它）喜欢鱼。,（,主语为第三人称单数,）,The table has four legs.桌子有四条腿。,(,主语为单数可数名词,),Water boils at 100 degrees Celsius.水在100度沸腾。（,主语为不可数名词,）,They go to school every day.他们每天都去上学（,主语是复数可数名词的，动词用原形,）,2.,疑问句：,(1)一般现在时中，句中有be动词,(am,is,are)或情态动词(may,can,must,should)时，一般,疑问句将be动词或情态动词放在句,首。,由肯定句变为一般疑问句的步骤：,a.,把,be,动词（,am,is,are,）或情态动词,(may,can,must,should),提前。,b.,大写和小写的转换，句首的第一个字母要大写。,c.,句末要加问号。,肯定句：She is a student.,疑问句：Is she a student?,肯定句:He can swim.,疑问句：Can he swim?.,疑问句的回答：用什么问就用什么来回答。,-,Is she a student?,-,Yes,she is.,-,Can you swim?,-,Yes,I can.,(2)句中如果没有be动词(am,is,are)或情态动词(may,can,must,should)时，主语为第三人称单数,（she,he,it）、单数可数名词、不,可数名词的疑问句要用does 来提问。,即在句首加,does,，句子中原有动词用原形,例：,Does he like Chinese?,他喜欢汉语吗？,Yes,he does.,是的，他喜欢,(,汉语,),。,Does a dog eat meat?,狗吃肉吗？,No,it doesnt.,不，它不吃,(,肉,),。,(3)句中如果没有be动词(am,is,are)或情态动词(may,can,must,should)时，主语为复数可数名词的,疑问句要用do 来提问。,-,Do you like monkeys?,-,No,we dont.,-,Do students study Englsih?,-,Yes,they do.,3.否定句：,(1)句中有be动词(am,is,are)或,情态动词(may,can,must,should),时，否定句在be动词和情态动词后,加not,。,e.g.,I am not a teacher.,He can not fly.,(2)句中没有be动词(am,is,are)或情态动词(may,can,must,should时，主语为第三人称单数的否定句，,在动词原形前加does+not(doesnt)。,He doesnt like cats.,(3)句中没有be动词(am,is,are,)或情态动词(may,can,must,should)时，主语为复数可数名词的,否定句，,在动词原形前加do+not(dont)。,They dont go to school on Sundays.,第三人称单数,一、人称代词he,she,it是第三人称单数。,如：He likes watching TV.,She has lunch at twelve.,It looks like a cat.,二、单个人名、地名或称呼作主语；是第三人称单数。,如：,Han Mei looks like her mother.,Beijing is in China.,Uncle Wang often makes cakes.,三、单数可数名词或this/that/the+单数可数名词作主语时，是第三人称单数。,如：A horse is a useful animal.,This book is yours.,That car is red.,The cat is Lucys.,四、不定代词someone,somebody,nobody,everything,something等及指示代词this,that作主语时，是第三人称单数。,如：Everyone is here.,There is something wrong,with the watch.,This is a pen.,That is an eraser.,五、不可数名词作主语时为第三人称单数。,如：The milk is in the glass.,The bread is very small.,六、当数字或字母作主语时，看作第三人称单数。,如：6 is a lucky number.,I is a letter.,动词,+s,的变化规则,1一般情况下，直接加-s，,如：cook-cooks,milk-milks,2以s.x.sh.ch.o结尾，加-es，,如：guess-guesses,wash-washes,watch-watches,go-goes,3以“辅音字母+y”结尾，变y为i,再加-es，,如：study-studies,自我检测：,(一)、单选,1 Jenny _ in an office.Her parents _in a hospital.,A work;works,B works;work,C work;are working,D is working;work,2 One of the boys_ a black hat.,A have,B there is,C there are,D has,3 We will go shopping if it_ tomorrow.,A,.,dont rain,B,.,didnt rain,C,.,doesnt rain,D,.,isnt rain,4 He said the sun _in the east and _in the west.,A rose;set B rises;sets,C rises,set D rise;sets,5 Wang Mei _ music and often _ to music.,A like;listen,B likes;listens,C like;are listening,D liking;listen,6 Jenny_ English every evening.,A has study B studies C study D studied,(,二,),、填空,1 I can take Li Ming there when he _(come)to visit.,2 _your sister_(know)English?,3Her home_ _ _(,远离,)her school.,4The pot_(not look)like yours very much.,口诀：,见助动，用原形,does、has永不见,I,am,a pupil.,We,go,to school every day.,Nancy,teaches,us English.,She,was,thin then,but now she,is,a little fat.,I,cant swim,.But I,will learn,.,Look!My friends,are swimming,now.,一般现在时通常表示,经常发生的动作或存在的状态,Be,动词的一般现在时,1.,第一人称单数（,I,）,+am,2.,第三人称单数（,he/she/it,）,+is,3.,第二人称单数（,you,）,/,个人称复数,（,we/they/you,）,+are,I am,a doctor.,I,am,hungry.,She is a,kind teacher.,It is,cloudy today.,You are,a handsome boy.,They are,busy with their homework every day.,I,用,am,，,You,用,are,，,is,连着,he,she,it,（他她它）。,名词单数用,is,，名词复数都用,are,.,I am=Im,you are=youre,he is=hes,she is=shes,it is=its,we are=were,they are=theyre,实义动词的一般现在时,1.,第三人称单数（,he/she/it,）,+,动词第三人称单数现在式,2.,第一、二人称单数（,I/you,）,/,各人称复数,（,we/you/they,）,+,动词原形,Ann gets up at 8 oclock every morning.,She studies hard./She works hard.,We want to take a trip during the holidays.,You do a very good job in cooking.,They all run fast in the sports meeting.,一般现在时的基本用法,I leave home for school at 7 every day.,Bob always helps the old man.,It seldom rains in summer here.,We usually go home on foot.,They sometimes go swimming on Sundays.,表示经常性或习惯性的动作，,常与,always,often,usually,seldom,every day,sometimes,等连用。,e.g.,He can swim.,I work hard.,I like watching TV.,表示主语的特征、性格、能力、爱好等。,A bird flies with wings.,Beijing lies in the north of China.,The earth goes round the sun.,表示永恒不变的事实或真理,Pride goes before a fall.,Knowledge is power.,用在格言、谚语中,单选,()1.Big B,a cat,small b,a snail.,A is,，,are B are,，,is C is,，,is,()2.Mum is a big G,the bab