初中英语一般现在时过去时现在进行时讲解.ppt

现在进行时,一，现在进行时的构成 现在进行时由be+v-ing构成。be应为助动词，它应与主语的人称和数保持一致。,动词后加ing的规则,1.直接加-ing,2以-e结尾一般应去掉e再加ing,write hope care have save produce breathe,writing hoping caring having saving producing breathing,3.重读闭音节加一辅音结尾的，最后一个字母需重复,run stop plan sit control begin cut swim,running stopping planning sitting controlling beginning cutting swimming,4 特殊,diedying，tietying，lielying,getting putting shopping,get put shop,二，基本用法,肯定句式：主语+be(am,is,are)+现在分词+其它.否定句式：主语+be(am,is,are)+not+现在分词+其它,说话时正在进行的动作,我们正在等你,We are waiting for you.,They are playing basketball now.,现在他们正在打篮球,Listen！She is singing an English song,.听，她正在唱英语歌。,现阶段正在进行而说话时不一定在进行的动作,We are working in a factory these days.,这几天我们在一家工厂工作,他在写另一部小说,He is writing another novel,nowat the presentat the momenttoday，this week these days,一般疑问句：Be(am,is,are)+主语+现在分词+其它？特殊疑问句：疑问词+be(am,is,are)+主语+现在分词+其它？,Are they playing basketball now?,Where are they playing basketball now?,3.现在进行时与always usually continually forever等副词连用时带有感情色彩,二，基本用法,You are always changing your mind.,你老是改变主意。,The boy is forever asking questions.,那个男孩老是问问题。,She is constantly worrying about her sons health.,她不停地为她儿子的健康担心着,一般现在时,构成1.be动词：主语+be(am,is,are)+其它。如：I am a boy.我是一个男孩。2.行为动词：主语+行为动词(+其它)。如 We study English.我们学习英语,1如果主语是名词复数和第一人称I、we，谓语动词不用变化，仍然用动词原型表示,一 动词的变化规则,我们通常7:30上学去,We usually go to school at 7:30,My parents give ten yuan to my sister every week.,我父母每星期给我妹妹十元钱。,2 如果主语是单数名词 第三人称单数 和 不可数名词，谓语动词要变化,一 动词的变化规则,（1）一般情况下，直接加-s（2）以s.x.sh.ch.o结尾，加-es（3）以“辅音字母+y”结尾，变y为i,再加-es,写出下列动词的第三人称单数 talk_forget_hope_stop_perform_play_say_buy_worry_fly_study_like_make_take_ love_recite_become_come_drive_shine_ write_hike_give_see_stop_shop_plan_get_sit_let_ cut_run_forget_begin_wash_watch_ finish_teach_fish_reach_go_do_,（4）.特殊变化的词 be(是)-am,is,are have(有)-has have,二 基本用法,1.表示事物或人物的特征、状态。如：The sky is blue.天空是蓝色的。,3)陈述客观事实、客观真理。顾名思义，客观的情况是没有时间概念的；也不会在意动作进行的状态。例如：The sun rises in the east.日出东方。The earth goes around the sun.地球绕着太阳转。Ten minus two is eight.十减二等于八。Light travels faster than sound.光的速度比声音的速度快。The United States lies by the west coast of the Pacific Ocean.美国位于太平洋西岸。,2.表示经常性或习惯性的动作。如：I get up at six every day.我每天六点起床。,常用的时间词语 always,usually,often,sometimes，twice a week,4)根据英文语法规定，当主句的谓语动词是一般将来时，那么时间或条件状语从句的谓语动词只能用一般现在时来表示将来要发生的动作。例如：Ill tell him the news when he comes back.他回来时，我将告诉他这个消息。If you take the job,they will talk with you in greater details.如果你接受这份工作，他们将和你谈谈细节。用于一般现在时的副词，除了上面提到的一些表示频率的以外，常见的还有：now,today,nowadays等等。,他是工人,He is a worker,He is not a worker,Is he a worker?,1.be动词：主语+be+其它(肯）主语+be+not+其它（否）Be+主语+其它？,他们放学后踢足球,they play basketball after school,they dont play basketball after school,Do they play basketball after school？,2 行为动词：主语+行为动词(+其它)主语+dont(doesnt)+动词原形(+其它)Do(Does)+主语+动词原形+其它,二、用括号内动词的适当形式填空。1.He often _(have)dinner at home.2.Daniel and Tommy _(be)in Class One.3.We _(not watch)TV on Monday.4.Nick _(not go)to the zoo on Sunday.5._ they _(like)the World Cup?6.What _they often _(do)on Saturdays?7._ your parents _(read)newspapers every day?8.The girl _(teach)us English on Sundays.9.She and I _(take)a walk together every evening.10.There _(be)some water in the bottle.11.Mike _(like)cooking.13.My aunt _(look)after her baby carefully.14.You always _(do)your homework well.15.I _(be)ill.Im staying in bed.16.She _(go)to school from Monday to Friday.17.Liu Tao _(do)not like PE.18.The child often _(watch)TV in the evening.19.Su Hai and Su Yang _(have)eight lessons this term.20.What day _(be)it today?Its Saturday.21 We often _(play)in the playground.22.He _(get)up at six oclock.,1 has 2 are,3 doesnt watch 4 doesnt go,5 Do like 6 do do,7 Do read8 teaches,9 take 10 is,11 likes 13 look/is looking,14 do15 am,16 goes 17 does 18 watches 19 have 20 is 21 play 22 gets,19.Su Hai and Su Yang _(have)eight lessons this term.20.What day _(be)it today?Its Saturday.21 We often _(play)in the playground.22.He _(get)up at six oclock.23._ you _(brush)your teeth every morning?24.What _(do)he usually _(do)after school?25.Danny _(study)English,Chinese,math,science and art at school.26.Mike sometimes _(go)to the park with his sister.27.At eight at night,she _(watch)TV with her parents.28._ Mike _(read)English every day?29.How many lessons _ your classmate _(have)on Monday?30.What time _ his mother _(do)the housework?,1.Daniel watches TV every evening.(改为否定)_2.I do my homework every day.(改为一般疑问句，并作否定回答)_3.She likes milk.(改为一般疑问句，并作肯定回答)_4.Amy likes playing computer games.(改为一般疑问句，并作否定回答)_5.We go to school every morning.(改为否定句)_6.He speaks English very well.(改为否定句)_7.I like taking photos in the park.(对划线部分提问)_8.John comes from Canada.(对划线部分提问)_,Daniel doesnt watch TV every evening,Do you do your homework every day?Yes.I do,Does she like milk,Does Amy like playing computer games Yes,she does,9.She is always a good student.(改为一般疑问句，作否定回答)_10.Simon and Daniel like going skating.(改为否定句)11.Do you often play football after school?(肯定回答)_12.I have many books.（改为否定句）_13.Gao Shans sister likes playing table tennis.（改为否定句）_14.She lives in a small town near New York.（改为一般疑问句）_15.I watch TV every day.（改为一般疑问句）_16.David has got a goal.（改为一般疑问句）_17.We have four lessons.（改为否定句）_,18.Nancy doesnt run fast.（改为肯定句）_19.My dog runs fast.否定句：_一般疑问句：_20.Mike has two letters for him.一般疑问句：_ 否定句：_21.I usually play football on Friday afternoon.否定句:_ 一般疑问句:_划线提问_22.Sun Yang usually washes some clothes on Saturday.否定句:_ 一般疑问句:_划线提问:_23.Mingming usually waters the flowers every day.否定句:_ 一般疑问句:_划线提问 _24.Tom does his homework at home.否定句:_ 一般疑问句:_划线提问_,四、改错,1.Is your brother speak English?_ 2.Does he likes going fishing?_3.He likes play games after class._ 4.Mr.Wu teachs us English._5.She dont do her homework on Sundays._,一般过去时,基本用法,1）在确定的过去时间里所发生的动作或存在的状态。Where did you go just now?刚才你上哪儿去了？,2）表示在过去一段时间内，经常性或习惯性的动作。When I was a child,I often played football in the street.我是个孩子的时候，常在马路上踢足球。,以动词be,work和there be为例，一般过去时的肯定式、否定式、疑问句和简略答语构成如下：,动词,肯定式,否定式,be,I/He/She/It wasWe/You/They were,work,I(You,He,She,It,We,You,They)worked,There be,There wasThere were,There was not(wasnt)There were not(werent),be,Was I(he,she,it)？Yes,I(he,she,it)was.No,I(he,she,it)wasnt.,Were we(you,they)？Yes,we(you,they)were.No,we(you,they)werent.,work,Did I(you,he,she,it,we,they)work?Yes,I(you,he,she,it,we,they)did.No,I(you,he,she,it,we,they)didnt.,There be,Was there a/any？Yes,there was.No,there wasnt.,Were there any？Yes,there were.No,there werent.,二。动词过去时的构成分规则,1.一般在动词末尾加-ed，如：pull-pulled,cook-cooked,2.辅+元+辅，且重读，应双写末尾的辅音字母，再加-ed，,beg drop fit plan regret stop prefer travel,begged dropped fitted planned regretted stopped preferred travelled,3.以“辅音字母+y”结尾的，变y为i，再加-ed,study-studied carry-carried Try-tried cry-cried,4不规则动词书中,Be动词am、is在一般过去时中变为was。（was not=wasnt）are在一般过去时中变为were。（were not=werent）,He was eleven years old last year,他去年11岁,Was he eleven years old last year?,He was not eleven years old last year,*句中没有be动词的一般过去时的句子*,Jim went home yesterday,Jim 昨天回家了,否定句：didnt+动词原形,Jim didnt go home yesterday,一般疑问句：在句首加did，动词变回原形,Did Jim go home yesterday?,请用正确动词形式填空,1.I_(have)an exciting party last weekend.2._she _(practice)her guitar yesterday?No,she didnt_.3.What _ Tom _(do)on Saturday evening?He _(watch)TV and_(read)an interesting book.4.They all _(go)to the mountains yesterday morning.5.She _(not visit)her aunt last weekend.She _(stay)at home and _(do)some cleaning.,had,Did,practice,did,do,watched,read,went,didnt visit,stayed,did,1 Frank read an interesting book about history.（一般疑问句）2.Hes cleaning his rooms.（划线提问）,变换句型,Did Frank read an interesting book about history?,Whats he doing?,5.Thomas spent RMB 10 on this book.（否定句）.6.My family went to the beach last week.（划线提问）7.I didnt have any friends.（一般疑问句）,Thomas didnt spend RMB 10 on this book,Where did your family go last week?,Didnt you have any friends?,8.I think she is Lilys sister.（否定句）9.Sally often does some reading in the morning.（否定句）,I dont think she is Lilys sister.,Sally doesnt often do some reading in the morning.,