七年级英语语法：一般现在时-课件.ppt

1、一般现在时一般现在时动词：1.be动词动词(is,am,are)2.情态动词（情态动词（3.行为动词（行为动词（run,speak,call,say.）、概念：、概念：1.一般现在时可表示现在的状态。一般现在时可表示现在的状态。2.表示经常的或习惯性的动作。表示经常的或习惯性的动作。3.表示主语具备的性格和能力。表示主语具备的性格和能力。1、肯定式、肯定式1)主语主语+be(am/is/are)+表语表语 I am a student.It/She/He is a teacher.You/They are classmates.2)主语主语+情态动词（情态动词（can,must,may,nee

2、d,shall）I can speak English.She must go to school.、构成形式、构成形式:3)They call me Tom.4)He runs very fast.注意：在一般现在时态的肯定句中，当主语是第注意：在一般现在时态的肯定句中，当主语是第三人称单数（三人称单数（she,he,it），行为动词要加），行为动词要加-s或者或者-es2.一般现在时态的否定和疑问式(1)Be动词She is a student.变否定：She _a student.变一般疑问句：_ _a student?肯定否定回答：Yes,_./No,_.isntIs sheshe i

3、sshe isnt（2）.情态动词e.g.She can speak Chinese.变否定：She _Chinese.变一般疑问：_she _ Chinese?肯定否定回答：Yes,she _.No,she _.cant speakCanspeakcancant(3)行为动词 e.g.I run very fast.变否定句：I _very fast.变一般疑问：_ you _very fast?肯定否定回答：Yes,I_./No,I _.e.g.She likes Maths.变否定句：She _Maths.变一般疑问：_ she _ Maths?肯定否定回答：Yes,she _.No,s

4、he _.dont runDorundodontdoesnt likeDoeslikedoesdoesnt注意：在一般现在时态中，当谓语动词是行注意：在一般现在时态中，当谓语动词是行为动词的时候，变否定和一般疑问句时，要为动词的时候，变否定和一般疑问句时，要借助助动词借助助动词dodo和和doesdoes帮忙。当主语是第三人帮忙。当主语是第三人称单数称单数(she,he,it)(she,he,it)的时候用的时候用doesdoes，其他，其他人称用人称用dodo.借助助动词借助助动词dodo和和doesdoes以后，动词以后，动词要用动词原形。要用动词原形。、一般现在时态的用法：、表示目前或现

5、在存在的状态或特征.e.g.She is often late.、表示客观存在及普遍真理。e.g.The earth is round.、表示现在经常和习惯性发生的动作，常与 sometimes,often,usually,always,everyday 等时间状语连用。、就单词的正确形式填空1.He _ (look)tired.2.The earth_ (go)round the sun.3._ (may)I have your pen?4.Practice _ (make)perfect.5.They usually_(come)to school earlier.6.Class_ (be

6、gin)at eight every morning.looksgoesMaymakescomebegins一、写出下列动词第三人称单数的变化写出下列动词第三人称单数的变化形式。形式。be have comego stay teach write take study watch fly playishascomesgoesstaysteacheswritestakesstudieswatchesfliesplays二、将下列句子变成否定式和一般疑问句 1Her name is Li Ling.2We go to school at night.3My brother works in a f

7、actory.Her name _ We _Myisntdont goDogodoesnt workDoesworkShe can play basketball.She _basketball._ she _ basketball?cant playCanplay三、单项选择 1.The Browns_a nice car and Browns brother _ a nice jeep.A.have,have B.has,has C.have,has D.has,have2.If their house_not like ours,what_ it look like?A.is,is B.is,does C.does,does D.does,is3.The little child_ not even know that the moon _ around the earth.A.do,move B.do,moves C.does,moves D.did,moved Thank You Good bye!