1、时态大比拼时态大比拼时态大比拼时态时态重点掌握重点掌握 在英语中，在英语中，不同时间不同时间发生的动作发生的动作或存在的状态或存在的状态要用不同的动词形式要用不同的动词形式来来表现。表现。每种时态的概念、标志词、每种时态的概念、标志词、结构、句式变化、以及某些时态结构、句式变化、以及某些时态间的相互区别间的相互区别判断下列时间词是属于哪种时态判断下列时间词是属于哪种时态一般过去时现在进行时 last night now Look!yesterday Listen!two years ago in 1897 时态时态现在进行时：现在进行时：一般过去时：一般过去时：现在正在现在正在进行进行的动作的
2、动作 过去过去某个时间或时间段发某个时间或时间段发生的动作或存在的状态。生的动作或存在的状态。各种时态常用的标志词现在进行时：一般过去时:now,Look!Listen!at this time Its 8:00am.Dont talk!last night,last,two days ago,ago,in 1999,in+过去过去的年份的年份,just now=a moment ago,yesterday,yesterday morning 现在分词现在分词（V-ing)的构成：的构成：过去式过去式的构成：的构成：直接加直接加 以以e 结尾结尾重读辅元辅，重读辅元辅，直接加直接加 以以e结尾
3、结尾 重读辅元辅，重读辅元辅，以以“辅音辅音+y”结尾结尾 -ing去去e加加-ing 双写尾字母加双写尾字母加-ing-ed只加只加d双写尾字母再加双写尾字母再加-ed变变y 为为i 再加再加-ed have-look-begin-use-shop-get-dance-study-现在分词过去式need-stop-hope-play-try-plan-visit-like-having looking beginning using shopping getting dancing studying needed stopped hoped played tried planned visi
4、ted liked用所给动词的适当形式填空。用所给动词的适当形式填空。1.Listen!Mary _ (sing).2.A young man _(run)on the playground now.3.My mother _(watch)TV play every day.4.Old Bush _(visit)China again last month.5.I _(play)sports three times a day.6.Look!Lucy and Lily _(read)books.7.There _(is)a football match yesterday afternoon.
5、8.Our class _(go)to the zoo three days ago.is singing is running watches visited play are reading was went I usually wash my clothes in the afternoon.(用now改写)I am washing my clothes now.(用last weekend改写)I washed my clothes last weekend.时态大比拼时态大比拼时态大比拼时态大比拼 Look！Tom is cleaning his room.（用on weekends
6、 改写）Tom cleans his room on weekends.（用two hours ago改写）Tom cleaned his room two hours ago.She got up at seven oclock yesterday.（用 now改写）She is getting up now.（用 every day改写）She gets up at seven oclock every day.时态大比拼时态大比拼 1.She is cleaning the room.变成否定句：She isnt cleaning the room.变成一般疑问句：Is she clea
7、ning the room?2.He went to the zoo last week.变成否定句：He didnt go to the zoo last week.变成一般疑问句：Did he go to the zoo last week?句型变化句型变化 1.He is a teacher.2.They are having classes.3.I usually take the bus to work.4.He comes from China.5.Jane played the guitar last night.He isnt a teacher.Is he a teacher
8、?They arent having classes.Are they having classes?I dont usually take the bus to work.Do you usually take the bus to work?He doesnt come from China.Does he come from China?Jane didnt play the guitar last night.Did Jane play the guitar last night?句型变化操练句型变化操练改一般疑问句的方法：改否定句的方法：首先看有无be动词，如果有，将be提到句首并大写，句末打问号.如果没有be动词，看原句的动词形式来决定借用助动词do/does/did,并且行为动词要还原。V-原形V-s/esV-ed(过去式)+动词原形?以此类推首先看有无be动词，如果有，在be 动词后面加not.如果没有be 动词，看原句的动词形式来决定借用助动词do/does/did,并在后面加not,并且行为动词要还原。主语+dont/doesnt/didnt+动词原形DoDoesDid
