小学英语时态讲解及练习.doc

小学英语时态讲解及练习一般现在时态及第三人称单数第三人称单数问题一般现在时中，当主语是第三人称单数时，即常在动词原形后加-s或-es。第三人称单数变化，现归纳总结如下：1.人称代词he, she, it是第三人称单数。如：He likes watching TV.他喜欢看电视。She has lunch at twelve.她十二点吃午餐。It looks like a cat.它看起来像只猫。2.单个人名、地名或称呼作主语；用第三人称单数。如：Han Mei looks like her mother.韩梅看起来像她的母亲。Beijing is in China.北京在中国。Uncle Wang often makes cakes.王叔叔经常做蛋糕。3.单数可数名词或this / that / the/ a +单数可数名词作主语时，是第三人称单数。如：A horse is a useful animal.马是有用的动物。 This book is yours.这本书是你的。That car is red.那辆小汽车是红色的。 The cat is Lucys.这只猫是露茜的。4.不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，第三人称单数。Everyone is here.大家到齐了。 There is something wrong with the watch.这块手表有毛病。This is a pen.这是一支钢笔。 That is an eraser.那是一块橡皮擦。5.不可数名词作主语时为第三人称单数。如： The milk is in the glass. The bread is very small.6.当数字或字母作主语时，看作第三人称单数。如： 6 is a lucky number.6 I is a letter.发音规则动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同，请认真观察。1、大多数动词在词尾加“S”在清辅音后发音为s，在浊辅音及元音后发音为 z。如：stopstops s ; makemakes sreadreads z ; playplays z2、以辅音字母加“y”结尾的，要先将“y”变为“i”，然后在加“es”读iz 如：flyflies z； carrycarries zstudystudies z; worryworries3、以“s, x, ch, sh”结尾的，在词尾加“es”，发音为iz 如：teachteaches iz; watchwatches iz4、以“o”结尾的动词，加“es”，读z 如： gogoes z dodoes z注：下面几个动词变为单数时，原词的元音部分的发音发生了较大的变化，请注意记忆。 如：1、do du:does dz2、say seisays sez以不发音字母“e”结尾的开音节词，如果尾音是s，z时，加“s”后字母“e”发音， 与所加“s”一起读做iz。 如：closecloses iz作业I.写出第三人称单数：wash_ match _guess_ study_ finish_ go_ snow_ carry_II.用所给动词的适当形式填空：1. He_ TV every evening. (watch)2. We always _ to school on foot. (go)3. Tom, with his classmates, often _ football after school. (play)4. Your shoes _ under the bed. (be)5. _ here and _ by me. (come, stand)6. His uncle usually _ to work by bus. (go)7. I always _ up at six in the morning.(get)8. John _ like his father. (look)III.完成句子根据所给中文意思，在空白处填入适当词语完成句子。每空一词，请直接在答题纸上完成，不要在此页上作答。1该吃晚饭了。its time to _ _.2你想来点儿面包吗?would you _ some _ ?3安娜太小，还不能上学。ann is _ young _ go to school.4约翰跑得和我一样快。john runs _ fast _ me.5布莱克太太经常在英语上帮助我们。mrs. black often _ us _ our english .6老师让我们每天说英语。the teacher tells us _ _ english every day.7为什么不让孩子们做他们喜欢的事情?_ _ let the children do what they like?（答案：二、1. watches 2. go 3. plays 4. are 5. come, stand 6. goes 7. get, got8. looks三、1. its time to have supper. 2. would you like some bread?3. ann is too young to go to school. 4. john runs as fast as me.5. mrs. black often helps us with our english.6. the teacher tells us to speak english every day.7. why not let the children do what they like? ） 一般现在时态一、一般现在时的用法:1、表示经常或者反复发生的动作. 如: 我每天吃午饭. I have lunch every day.2、还表示现在存在的一种状态. 如：我姐姐是一位老师My sister is a teacher.3、客观真理，客观存在，科学事实。例如：The earth moves around the sun.地球绕着太阳转。二、一般现在时态经常与often（经常）sometimes（有时）always（总是）usually（通常）等频率词连用，也经常与every day（每天）, every week（每周）, every month（每月）, every term（每学期）, every year（每年）, once a week （一周一次），twice a year（一年两次）等表示时间的词连用。三、第三人称单数问题一般现在时中，当主语是第三人称单数时，即常在动词原形后加-s或-es。四、一般现在时分类：一般现在时态分为be 动词的一般现在时。1） be动词包括am，is，are. 中文为是， 这三个词的用法要随着主语的变化而变化。 am 用于第一人称单数（I）; is 用于第三人称单数（he，she，it）; are 用于第一人称复数（we），第二人称单数和复数(you), 第三人称复数（they）。 可以记住以下顺口溜： am管 我， is管，她，它，他， are管大家。一般疑问句和否定句：把be 动词am，is，are 放在句首,回答时也要使用be动词；变为否定句时,把表示否定的not 放在 am is are 的后面, 其中可以简写为：is not- isnt ；are not- arent；am not 没有简写形式。注意：如果are not, is not放在句尾时，不能使用简写，必须写出整个单词。. Am I a teacher? Yes, I am. (No, I am not.) Are you his friend? Yes, you are. (No, you are not.)Is she a nurse? Yes, she is. (No, she is not.)否定句为：I am not a teacher. You are not his friend. She is not a nurse.2）实义动词的一般现在时如果句子的动词不是be 动词 am is are 而是其他实义动词, 疑问句和否定句要借助于助动词do或者 does， 也就是说be 动词和实义动词原形不能同时使用。 这里的 do，does 本身没有什么意义，只是帮助构成疑问句和否定句. 一般疑问句读时必须用降调.do和 does的使用要随着人称的变化而变化。请看下面两组句子，注意区分他们的共同点和不同点。I go to school every day. - I dont go to school every day.He goes to school every day. -He doesnt go to school every day.Do you go to school every day? -Does he go to school every day?Yes, I do. (No, I dont) -Yes, he does. (No, he doesnt)当主语是第三人称单数时，肯定句为：主语+动词的s形式+宾语否定句为：主语+助动词doesnt+动词原形+宾语疑问句为：Does+主语+动词原形+宾语肯定回答和否定回答也要使用助动词does.注：1）第三人称单数用了 does 后面就不用动词的s形式了,而用动词原形.2）变为疑问句,要在句首加do ; 变为否定句, 要在动词前面加do not, 可以简写为 dont.课堂练习一、把下列句子改成一般疑问句并做肯定、否定回答。1I usually get up at six oclock. ? Yes, . /No, .2. We usually write e-mails to each other on Saturday evening. ? / .3. They have the same hobby. ? ./ .4.Suhai and Su yang like listening to music after school. ? . / .5.Helen usually watches TV in the evening. ? . / .二、用词的适当形式填空。1.What time_ his father_(do) the work?2.He _(get) up at five oclock.3._ you _(brush) your teeth every morning.4.What _ ( do ) he usually _( do ) after school?5.Tom _ ( study ) English, Chinese, Maths, Science and Art at school.6. Kitty sometimes _(go) to the park with his sister.7.At eight at night, she _( watch ) TV with her parents.8. _ Mike_( read ) English every day?9.How many lessons_ your classmates_( have ) on Monday?10.We often_ ( play ) football in the playground.三选择() 1. _ you have a book?A. DoB. AreC. IsD. Have()2. They _ on a farm.A. workingB. is workC. workD. is worked() 3. Does Peter like to watch TV?_.A. Yes, he likeB. No, he doesntC. Yes, hed likeD. No, he likes()4. She doesnt _ her homework in the afternoon.A. doingB. to doC. doesD. do()5. How _ Mr. Brown _ to America?A. do,goB. is,goC. does,goD. does,goes()6. Wheres my camera? I_ it.A. am not findingB. am not seeingC. cant findD. cant look at()7. How _ he go to work?He _ to work by bike.A. does ;goB. do;goesC. do ;goD. does;goes()8. _ you usually late for school?No, _.A. Do ; I amB. Does ;notC. Are ; Im notD. Are ; I arent()9. _ she _ home at six every day?A. Is , leaveB. Does , leaveC. Is , leavesD. Does , left()10. Mr. Yang _ English this term.A. teaches ourB. teaches usC. teachs usD. teach our答案：二.1.does, do2. gets3. Do, brush4. does, do5. studies6. goes7. watches8. Does, read9. do, have10. play三.1-5 A C B D C6-10 C D C B B 现在进行时、动词的ing形式（附练习及答案）现在进行时动词的现在进行时由be的现在时形式“am/is/are+现在分词”构成，主要用于以下几方面。（1）用来表示现在正在进行或发生的动作。例如： What are you doing? We are playing basketball. 你们在干什么？我们在打篮球。（2）有时用来表示现阶段正在进行，而说话时不一定正在进行的动作。例如： Are they working hard this term? 这学期他们在努力学习吗？ We are picking apples on a farm these days? 这些天我们正在农场摘苹果。（3）表示即将发生的动作（如在最近按计划或安排好要进行的动作）。Come, go, leave, start, arrive等动词常与将来时间的状语连用表示这种意义。例如：They are going to Shanghai this Friday.他们这个星期主要去上海。Tom is coming here next week.汤姆下周要来这儿。（4）说明: 不是所有动词都能用现在进行时态的,如：see、like、want、know 等动词往往都不用进行时态现在进行时态的肯定、否定和疑问式及特殊疑问句1)现在进行时的肯定形式：主语+be(am/ is/are)+doing+其他成分I am singing . They are writing .2)现在进行时的否定形式:主语+be(am/ is/are)+not +doing+其他成分I am not singing . They arent writing .3）一般疑问句及回答：be(am/ is/are)+ 主语+doing+其他成分Am I singing ? Yes ,you are . / No ,you arent .Are they writing ? Yes ,they are . / No ,they arent .4)特殊疑问句及回答:特殊疑问词+be(am/ is/are)+主语+doing+其他成分What are you doing ? We are playing (要求就提问内容具体回答).缩写形式如下:I am-Im You are-Youre He is-Hes She is-ShesIt is-Its We are-Were They are-Theyre动词的ing形式的构成（1）一般在动词原形末尾加ing。例如：workworking, studystudying.（2）以不发音的字母e结尾的动词，先去掉e，再加ing。例如:havehaving, liveliving. （3）以重读闭音节结尾的动词，如结尾只有一个辅音字母，应先双写出这一字母，再加ing。例如：runrunning, stopstopping, forgetforgetting, beginbeginning.一、写出下列动词的ing形式walk jump watch lie playsingsmoke dance driverunswim sit tie read eat 二、用现在进行时完成下列句子:1. _you_(fly) a kite? Yes,_.2. _you_(sit) in the boat?3. _he_(talk) with me?4. We_(play) football now.5. What_you_(do)?6. I_(sing) an English song.7. What_he_(mend)?8. He_(mend) a car.9. These boys _ (play) tennis on the playground.10. My mother_ (cook) in the kitchen.三、选择1. Look. Lucy is_ a new bike today.A. jumping B. running C. riding D takeing2. The children _ football.A. is playing B. are playing C. play the D. play a3. They _TV in the evening. They do their homework.A. are watching B. cant watching C. dont watch D. dont watching4. Listen! She_ in the classroom.A. is singingB. sing C .to sing D. is sing5. _are you eating? Im eating _ meat.A. What,some B. Which,any C. Where,not D. What,a6. Is she _ something? A. eat B. eating C. eatting D. eats7. I cant catch up with the fashion,because the clothes style_ all the time.A. has changed B. is changed C. is changing D. changed8.Look! The children_ basketball on the playground.A. plays B. played C. is playing D. are playing9.Jack and Ketty_ in the lake. Lets join them,shall we?A. swim B. have swum C. swamD. are swimming10.Its six in the afternoon. The Greens_ lunch together.A. has B. are having C. have hadD. had had答案：一、1. Are ,flying,I am 2. Are sitting,3.Is,talking 4. are plying 5. are,doing 6.am singing