人教版七年级上册《英语》动词用法小结ppt课件.pptx

1、 表示动作或状态的词叫作动词。动词是英语中重要且复杂的成分。涉及到动词的人称和数，时态、语态等 表示动作的动词，如：throw 投掷 walk 行走 dance 跳舞 sing 唱歌 表示状态的动词，如：be 是 have 有 smile 笑 cry 哭 sleep 睡觉什么是动词？按照动词的词义和动词在句子中所起的作用来划分，动词可分为四类：动词的种类实义动词实义动词系动词系动词助动词助动词情态动词情态动词及物动词及物动词不及物动词不及物动词 系动词也叫连系动词，不能单独作谓语，必须和名词、形容词等一起使用，作句子的谓语。其中be(是)是最基本的系动词。如：I am in China.我在中

2、国。Tom is very tall and strong.Tom又高又壮。Are you ready?Lets go.你准备好了吗？我们走吧系动词I(我)用am,you(你)用are,is连着he(他)she(她)it(它)单数名词用is,复数名词全用areisareisisisisareareis系动词中除了be，常用的系动词还有look（看起来）、sound（听起来）、feel（感觉到）、taste（尝起来）、smell（闻起来）等。这些系动词的特点是：系动词系动词+形形容词容词 二、请找出下列句中的系动词和所跟的形容词The boy looks very happy.这个男孩看起来很高

3、兴。The music sounds beautiful.这音乐听起来很美妙。The silk feels very smooth.丝绸摸起来很光滑。The dish smells good.这盘菜闻起来很香。She helps me。She can help me.She cant help me.（二）情态动词表示说话人的语气或情态。情态动词词义不完全，不能单独作谓语，只能与动词原形一起构成谓语。情态动词有shall,should,will,would,can,could,may,might,must,dare,need,ought to 等。三、用所给词的适当形式填空。1.They ca

4、n _(come)here at 6:00.2.They must _(call/calls)the police.3.-Can you speak English?-Yes,I_.4.She can _(play/plays)ecallcanplay直接变化（1）一般动词在词尾加一般动词在词尾加-s,help helps，swim swims（2）以字母以字母s,x,ch,sh 结尾的动词加结尾的动词加-es,watch watches teach teaches，以以o结尾的动词也加结尾的动词也加es，读/z/。go goes do does（3）以以辅音辅音字母加字母加y结尾的动词，结尾

5、的动词，fly flies carry carries 特殊特殊：have has do does 五、写出下列动词的第三人称单数形式写出下列动词的第三人称单数形式 play _ make _ have_ pass_ watch _ sell_study _ buy_playsmakeshaspasseswatchessellsstudiesbuys 不同于be动词和情态动词，含实义动词的句子变 否定句需借助于助动词：dont/doesnt+动词原形 一般疑问句：Do/Does+主语+动词原形+其他？Yes/No,主语+dont/doesnt（1）We have black eyes.We d

6、ont have black eyes.Do you have black eyes?（2）She comes from China.She doesnt come from China.Does she come from China?六、请将下列句子变为否定句和疑问句：1.We have many friends.否定句：We dont have many friends.一般疑问句：Do you have many friends?2.They watch TV at 7 in the evening.否定句：They dont watch TV at 7 in the evening.

7、一般疑问句：Do they watch TV at 7 in the evening?3.Jenny buys some cards from that store.否定句：Jenny doesnt buy any cards from that store.一般疑问句：Does Jenny buy any cards from that store?4.The girl has lunch at school.否定句：The girl doesnt have lunch at school.一般疑问句：Does the girl have lunch at school?七、本块习题七、本块

8、习题:用所给词的正确形式填空用所给词的正确形式填空 1、I _(have)a soccer ball.2、She _(have)two ping-pong balls.3、He _(play)sports every day.4、We _(speak)English.5、Tom _(call)Jim every day.6、My daughter _(like)apples.7、His friend_ （know）English.8、The girl _ (study)English sometimes.9、The boy often _ （watch）TV.10、Her uncle _(go

9、)home on footplayshashavespeakcallslikesknowsstudieswatchesgoes动词的变形（动词的变形（V原形，三单，原形，三单，V-ing,to do,）这是同学们学习的一个难点。一般情况下动词的变形由主语的人称和数（比如三单），或者语法、固定搭配来决定。需要同学们能找到依据并且不断积累。总结我们初一上学期学过的知识中，以下情况使用：总结我们初一上学期学过的知识中，以下情况使用：1.动词原形：动词原形：(1)祈使句用祈使句用V原：原：Please spell it.(2)情态动词情态动词 can,must或助动词或助动词 do,does+V原原

10、(3)let sb.do sth.2.使用使用V-ing 的情况：的情况：（1）介词）介词+doing (what/how about,think about,thank you for doing)(2)like/finish/be busy+doing 3.使用不定式使用不定式 to do 的情况：的情况：(1).want/need(sb.)to do sth.(2).like to to (3).help sb.(to)do sth.（to 可以省略）可以省略）(4).teach/ask sb.to do sth.3.使用不定式使用不定式 to do 的情况：的情况：(1).want/n

11、eed(sb.)to do sth.(2).like to to (3).help sb.(to)do sth.（to 可以省略）可以省略）(4).teach/ask sb.to do sth.(5)Its time(for sb.)to do sth.(6).It takes sb.sometime to do sth.（创新班）（创新班）八、请用下列单词的适当形式填空 1.Alicia and Jerry _(do)homework after school.2.They _(go)to work on Saturdays.3.He usually _(come)to school ear

12、ly.4._Jim and Tom _(like)hamburgers?5.My grandfather _(play)sports in the park.6.Miss Li _(teach)English in our school.dogocomesDoplaysteacheslike 7.Who helps you _(look)after（照顾）your daughter at home?8.Thank you for_(help)me-Youre welcome.9.My mother needs_(buy)a sweater.10.What about _(go)to the s

13、hop?11.Bob likes _(watch)TV.12.My teacher always asks us _(do)homework on time.13.Lets _(play)tennis after class.-That sounds good.14.I dont want _(be)fat.（to）lookhelpingto buygoingto watch/watching to doplayto be 15.After I finish _(do)my homework,I go shopping.16.Bobs birthday is next week,Lets think about _(buy)some fruit for him.17.She _(like)fish,but she _(not like)meat.18.Mr Green wants _(buy)a new watch.19.His friend _(like,play)computer games.20.We can _(sing)English songs.buyingdoinglikesdoesnt liketo buylikes playingsing