一般现在时与现在进行时——英语时态课件

1、1,英语时态,English Tense,2,英语常用八大时态,一般现在时；一般将来时； 一般过去时 现在进行时；过去进行时 过去将来时 现在完成时；过去完成时 注意： 时态是由谓语动词的形式来体现。,3,一、一般现在时态,一般现在时的基本用法,用法1: 表示经常发生的习惯性的动作或者存在的状态.,He often goes for a walk after supper.The boy usually gets to school early.He always works hand.,4,此用法常与一些表示动作频率的时间副词连用(副词放在be动词之后, 实义动词之前). 1.every 系类 （day ,week, month, year） 2.频度副词 always, usually, sometimes, often, never等. 3.循环时间 on Mondays 每周一； in the mornings 每天早上； on weekends每周末；on school days 上学期间,5,用法2:客观事实或普遍真理,The earth moves around the

2、sun.The sun rises in the east and sets in the west.Three plus seven is ten.,用法3:表示现在存在着的状态或主语常带有的特征或性格,The cake tastes really good. We are busy now. He is an easy-going person.,6,用法4:表示已经安排或计划好的，将来必定会发生的，或不易改变的动作或存在的状态，如根据飞机、火车、汽车时刻表而来的班次、车次时间等。,My plane takes off at 9:00 a.m.The train leaves at three this afternoon.,常用be, come, go, arrive, leave, start, begin, close, open, return, take off 等,7,用法5:在时间或条件状语从句中有时用一般现在时表示将来发生的动作.,主要用在条件状语Ill call you the moment I arrive in Xian.If it rains tomorro

3、w, well stop running on the playgroundIll give the book to him as soon as I see him.从句(if, unless)和时间状语从句(when, as soon as, before, after等）中, 表示将来动作.,主将从现,8,一般现在时动词的变化规则,动词的第三人称单数的变化方式基本上和名词复数的变化是一样的,be,am,are,is,可数名词单数；不可数名词；第三人称单数,复数；you,I,3、以辅音字母+y结尾的动词，把y改为i，再加es 如： fly （动词原形）flies（动词单三形式）study（动词原形）studies （动词单三形式）特殊变化 have-has,1、一般情况下，在动词后+s 如：look （动词原形）looks （动词单三形式）get （动词原形）gets （动词单三形式）,2、以s.x.ch, sh结尾的动词加es 如：teach （动词原形）teaches（动词单三形式）pass（动词原形）passes （动词单三形式）,9,写出下列动词的第三人称单数 talk_f

4、orget_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_have_,10,基本用法,动词为be动词时 肯定句 ： 主+be+ 否定句： 主+be+ not 疑问句: be+主+? （注意人称变化 一变二 I We 变成you is 变成are）,动词为实义动词时 肯定句： 主+V（原形）/Ves+ 否定句 主+dont/doesnt+V 疑问句 do/does +主+V（原形）+?,11,将以下句子改成否定句；疑问句,I am a student. She is a doctor. He reads books every day. They play basketball after school.,1

5、2,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 Mondays. 4. They _(have) the same hobby. 5. My aunt _(look) after her baby carefully. 6. You always _(do) your homework well. 7. I _(be) ill. Im staying in bed. 8. She _(go) to school from Monday to Friday.,has,are,dont watch,goes,do,looks,have,am,13,现在进行时的构成,be (am is are)+doing,14,现在进行时的用法,1.现在进行时表示正在进行的动作。 例：They are having an English lesson.他们正在上英语课。 2.现常与阶段正在进行而说话时不一定在进行的动作

6、，常与表示一段时间的副词连用（these days,this week等）例如：We are working on a farm these days.这几天来我们在农场工作,15,3.和always等频度副词连用，表示说话人的厌烦、气愤、赞许等情绪。 例如：Mary is always coming late.玛丽老是迟到。(生气） 4.表示将来的动作。（参看一般将来时的用法）,16,时间标志,1.时间状语： now ，right now 目前 此时 at the moment ， at present; It is _oclock;these days,this week 2 句首引起注意 Look, Listen! where? eg. Where is Lily? She is helping her mother in the kitchen . 祈使句 Eg Be quiet! The baby is sleeping.,17,动词后加ing的规则,1.直接加-ing,2以-e结尾 e不发音一般应去掉e再加ing,write hope care have,writing h

7、oping caring having,18,3.重读闭音节加一辅音结尾的，最后一个字母需重复 （最后三个字母 辅元辅组合）,run stop plan sit,running stopping planning sitting,4 特殊,diedying，tietying，lielying,travel（可双写也可不用）,19,现在进行时的句型结构,肯定句：1.I am doing. 2.You are doing. 3.He/She/It is doing. 4.We/You /They are doing. 否定句;1.I am not doing.2.You are not doing.3.He/She/It isnt doing.4.We/You/They arent doing.,20,4.一般疑问句:Are you doing.? Is he doing.? Are they doing.?,21,现在进行时专项练习： 一、写出下列动词的现在分词： play_run_swim_ make_go_like_ write_ski_read_ have_ sing _dance

8、_ put_see_buy_ love_live_take_come_ get_ stop_ sit _ begin_ shop_,22,二、用所给的动词的正确形式填空： 1.The boy _ ( draw)a picture now. 2. Listen !Some girls _ ( sing)in the classroom . 3. My mother _ ( cook )some nice food now. 4. What _ you _ ( do ) now? 5. Look . They _( have) an English lesson .,is drawing,are singing,is cooking,are,doing,are having,23,7.Look! The girls _(dance ) over there 8.What is our granddaughter doing? She _(listen ) to music. 9. Its 5 oclock now. We _(have)supper now 三、句型转换：1. They are doing housework . 一般疑问句：_ 否定句_ 2The students are cleaning the classroom .一般疑问句：_ 否定句： _ 3Im playing the football in the playground .(对划线部分进行提问)_,24,三、一般过去时态,一般过去时的基本用法,用法1: 表示过去时间所发生的动作或存在的状态.,He was late for school this morning.I bought this computer three years ago.I was tired last night, so I went to bed early.,此用法常与yesterday, three days ago, last night/week/month,in the past, just now=a moment ago连用,

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