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1、 在英语中，不同时间发生的动作 或存在的状态要用不同的动词形式来 表现。每种时态的概念、信息词、 结构、句式变化、以及某些时态 间的相互区别重点掌握时态Tense时态现在进行时：一般现在时：一般过去时：现在正在进行的动作 经常或习惯性的动 作或存在的状态。过去某个时间或时间段发 生的动作或存在的状态。(The Present Continuous Tense)(The Simple Present Tense)(The Simple Past Tense)各时态常用的信息词现在进行时 ：一般现在时 :一般过去时 :now , Look! Listen! at this time Where i
2、s ? Dont talk! Its 8:00am.always , usually, often, sometimes ,seldom, never, every day, every ,three times a daylast night, last, two days ago, ago,in 1999, in +过去的年份,just now =a moment ago, yesterday, yesterday morning 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
3、/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现在分词的构成：动词第三人称单数的构成：过去式的构成 ：直接加-ing.重读辅元辅，双写尾字母加-ing.以e 结尾去e加-ing .直接加-s.以s, x, ch, sh, o结尾加-es.以“辅音+y “结尾变y 为i再加-es.直接加-ed.以e结尾只加d
4、.重读辅元辅，双写尾字母再加-ed.以“辅音+y”结尾变y 为i 再加-ed.对对比 时态时态动词动词 形式否定句一般问问句现现在进进 行时时一般现现 在时时一般过过 去时时表格对比学习be+v-ing (现在分词 ）在be 后 加上not Be提到 句首V -原形 V-三人单在行为v.前借用 do ,does后加not ，行为动词还原Do,Does 提到句首 ，行为动 词还原V-ed (过去式 ）在行为v.前借 用did后加not ，行为动词还 原Did 提到句 首，行为 动词还原判断时态形式： 1. He always likes playing the piano.( )2. We ar
5、e having an English classes now.( )3. They often go home late.( )4. Lucy danced the disco at the party last night.( )5. I liked go to the zoo when I was young.( )6. My teacher is friendly to us.( )7. Look! They are playing football.( )8. She was born in 1990.( )9. I lost much money last night.（ ）A.现
6、在进行时B.一般现在时C.一般过去时ABCABBCCChave -look -begin-use-shop-get-dance-study-现在分词第三人称单数过去式study-finish-have-go-do-play-watch-give-need-stop-hope-play-try-plan-visit-like-having lookingbeginningusing shopping getting dancing studying studiesfinishes has goes does plays watchesgives neededstoppedhoped played
7、 tried planned visited liked1. He is a teacher.2. Kangkang comes from China.3. I usually take the bus to work.4.They are having classes.5.Jane played the guitar last night.先（一般疑问句）再（否定句）Is he a teacher?He isnt a teacher.Does Kangkang come from China?Kangkang doesnt come from China.Do you usually tak
8、e the bus to work?I dont usually take the bus to work.Are they having classes?They arent having classes.Did Jane play the guitar last night?Jane didnt play the guitar last night.句型变化操练用所给动词的适当形式填空。1. Listen! Mary _ ( sing) now.2. A young man _ (run) on the playground now.3. My mother _(watch) TV pla
9、y 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.8. Our class _( go) to the zoo three days ago.is singingis runningwatchesvisitedplayare readingwaswent常用时间常与一般过去时态连用
10、的时间有：yesterdayyesterday morning (afternoon, evening)last night (week, month, year)two days ago, a week ago, three years agoin 1990, (in 1998)判断下列信息词是属于哪种时态last night now every day Look!yesterdayoftenListen!two years ago alwaysin 1897three times a week一般现在时一般过去时现在进行时PRACTISE改写句子：1、Lucy did her homewo
11、rk at home.（改否定句）Lucy _ _ her homework at home.2、He found some meat in the fridge.（变一般疑问句)_ he _ _ meat in the fridge?3、She stayed there for a week.（对划线部分提问）_ _ _ she _ there?4、There was some orange in the cup.（变一般疑问句)_ there _ orange in the cup? didnt doDid find anyHow long did stayWas any Thats gr
12、eat过去式的不规则变化blow -buy -can -come- do -eat -fall -find -forget -get -give- go -have- know- learn -make -meet -read -run -say -see -send- sit -take- think- will -tell -begin -teach -catch -blew bought could came did ate fell found forgot got gave went had knew learnt made met read ran saidsaw sent sat took thought would told began taught caught
