重要时态复习一般现在时【定义】一般现在时表示现在经常反复发生的动作、存在的状态或习惯性的动作。
即描述我们日常生活中的衣食住行等活动。
【用法】(1 ) 在实际应用中，一般现在时常与以下时间状语联用：always, usually, often, sometimes, every week, once a week, on Sundays …(2 ) 没有时间状语，可以分以下四种类型：【结构】【第三人称单数变化规律】【练习】一、用所给词的适当形式填空。
（Be动词）2. __________(be) Tom and Sam in the same class?3. Your school life __________(be) very interesting.4. There __________(be) a pen, two rulers and some books on the desk.5. The boys __________(be) very friendly to me.1. My mom can __________(cook) food well.2. Must she __________(stay) at home now?3. What can the boy __________(do) for his parents?4. Tom can’t __________(sing) an English song.5. He may __________(perform) ballet at Kangkang’s birthday party.三、用所给词的适当形式填空。
（实义动词）2. Tom and I usually __________(go) to school by bike.3. Does Lin Tao __________(like) reading storybooks?4. What classes do you __________(have) today?5. How often does the girl __________(watch) TV?四、句型转换。
（Be动词）1. She is in a blue dress.2. I am from Qijiang.（变一般疑问句）__________ __________ from Qijiang?3. Are the storybooks very interesting?（否定回答）No, __________ __________.4. His parents are both workers.（变一般疑问句）__________ his parents __________ workers?5. There are some nice books on the shelf.（对划线部分提问）__________ __________ on the shelf?五、句型转换。
（情态动词）1. My mother may speak a little English.（变否定句）My mother __________ __________ speak a little English.2. We should be careful when we cross the street.（变一般疑问句）__________ __________ be careful when we cross the street?3. Must I finish my homework at once?（作肯定和否定回答）Yes, __________ __________. No, __________ __________.4. Tom can recite a Chinese poem.（对划线部分提问）What __________ Tom __________?六、句型转换。
（实义动词）1. They often play the piano loudly.（变否定句）They __________ often __________ the piano louldy.2. Jim learns English well.（变一般疑问）__________ Jim __________ English well?3. She likes Sichuan food very much.（对划线部分提问）What __________ she __________ very much?4. Do the boys usually play football after school?（作肯定回答）Yes, __________ __________.5. She usually does some cooking in the evening.（变否定句）She usually __________ __________ any cooking in the evening.一般过去时【定义】一般过去时表示过去某个时间发生过了的动作或存在过的状态。
即描述已经发生过了的事情。
【用法】A．be型这一类型由be动词（was和were）+名词、形容词、副词、代词、数词或介词短语等一起构成谓语，表示主语以前或过去的个性、特征或状态。
如：①(主语+be动词+名词)②（主语+be动词+形容词）③(主语+be动词+介词短语)④⑤B．情态动词型情态动词型句子的构成为如：① He could speak a little English last year. (could+speak)C．did型did其构成为。
②【结构】【规则动词过去式构成形式】【练习】2. When __________(be) you born?3. Maria __________(be) born in Cuba.4. The weather yesterday __________(be) very cold.5. They __________(be) very happy at Kangkang’s birthday party yesterday.2. __________(can) they dance the disco last year?3. I __________(can not) sleep well last night.4. What __________(can) you do just now?三、用所给词的适当形式填空。
（实义动词）1. I __________(like) reading books before. But now I don’t.2. She __________(watch) TV late yesterday evening.3. We __________(clean) up our classroom a moment ago.4. __________ they __________(have) any bread this morning?5. What __________ you __________(do) the day before yesterday?四、句型转换。
（Be动词）1. I was born in a small town.（变为一般疑问句）__________ you __________ in a small town?2. Sam was a little boy at that time.（变为否定句）Sam ________ ________ little boy at that time.3. His friends were in the library just now.（对划线部分提问）__________ __________ his friends just now?4. Were they very happy yesterday?（作否定回答）No, __________ __________.5. Was your brother born in Chongqing?（作肯定回答）Yes, __________ __________.1. I could sing English songs when I was five.（变一般疑问句）__________ you __________ English songs when you were five?2. The boy could ride a bike last year.（变否定句）The boy __________ __________ a bike last year.3. They could play a game yesterday.（对划线部分提问）What __________ they __________ yesterday?4. Could your friends cook food last Sunday?（作肯定回答）Yes, __________ __________.I __________ __________ to Sichuan with my friends during summer holidays.2. She recited a poem at Kangkang’s birthday party.（变一般疑问句）__________ she __________ a poem at Kangkang’s birthday party?3. They did their homework half an hour ago.（变否定句）They __________ __________ their homework half an hour ago.4. Tom sang a song beautifully yesterday.（对划线部分提问）What __________ Tom __________ yesterday?5. Jim took many pictures in winter holidays.（变一般疑问句）__________ Jim __________ many pictures in winter holidays?现在进行时【定义】现在（正在）进行时表示说话的瞬间正在进行或发生的事情。
【结构】主语+ be（am / is / are）+动词的-ing形式。