1、1第五、六讲初中英语语法知识梳理动词动词是表示动作(study, find, swim 等)或状态(be, like, feel 等)的词。动词具有人称、数量、时态、语态和语态变化。知识梳理:提纲挈领,抓住重点和难点!动词分类:动词有助动词、情态动词、联系动词和行为动词四类。一)助动词助动词没有任何含义,不能单独做谓语,只能和行为动词一起构成谓语,帮助行为动词组成各种时态、语态、语气以及疑问或否定形式。常见的助动词有 be, do, does, did, have, will, shall 等。具体用法如下:1、助动词 be 的用法如下:1)构成各种进行时态。如:It was raining
2、all day yesterday.昨天整天下雨。2)构成被动语态。如:The meeting was held yesterday afternoon.会议是昨天下午举行的。3)与不定式连用表示按照计划、预先安排或规定要发生的动作。如:They are to see an English film this evening.他们今天晚上看英语电影。2、助动词 do 的用法如下:1)构成疑问式或否定式。如:Does he think so?I didnt say anything about the result.2)在动词前加上 do, does, did 表示强调,意为“的确,确实 ”。如
3、:They do study hard.She does love him.He did want to help the old man.3、have: 助动词 have 的过去式是 had。have 和 had 均可与动词过去分词一起构成完成时态。如:He has lived here for three years.As soon as the sun had set they returned.4、shall, should: 助动词 shall 只用于第一人称的将来时态;助动词 should 是 shall 的过去式,构成过去将来时。如:I shall send ten letter
4、s to my good friend.She wanted to know if I should go to the palace.二)情态动词情态动词本身有一定含义,但不能单独作谓语,要和行为动词一起构成谓语。它们也能表明句子的否定、疑问或时态上的区别。常见的情态动词有:can, may, must, need, should 等。表示能力表示能力一般用 can, could。如:Rose can speak now, but she couldnt a week ago.be able to 也表示能力,它和 can 的区别如下:1)表示做事的能力,两者可通用。但 can 只能用于一般
5、现在时和一般过去时。be able to 可用于任何时态。如:2She could / was able to eat four pieces of bread when she was young.They will be able to finish the drawing soon.2) 表示过去经过努力而成功的某一次动作,只能用 was/were able to, 但在否定句中可互换。如:She was weak, but was able to finish the task last night.can (could) 在疑问句中与第二人称连用时,表示征求对方意见或提出请求,表示委
6、婉语气。虽然 could 是 can 的过去式,但是 could 只是表示比 can 语气更加委婉客气,没有时间上的差别。如:-Could you lend me your pen?-Yes, I can.表示许可表示许可一般用 may/might, can/could, 而且常可互换。Might, could 语气比较委婉。要特别注意:回答以 might, could 开头的疑问句只能用 may, can 给予直截了当的回答。-Might/Could I borrow your book?-Yes, you may/can.表示必需、必要must 和 have to 都有“必须” ,一般情况
7、下可互换。如:You must / have to finish the work但他们有如下区别:1)must 表示说话人的主观看法;have to 表示客观需要。如:I must have a talk with him.He has to give up smoking because of badly cough.2) 否定式 mustnt 表示禁止,意为“不准,不可以做”;dont have to 意为“不必” 。如:You mustnt hit her.You dont have to explain it to me if you dislike the job.注:表示推测的情
8、态动词有表示“一定”的 must, 表示“很有可能”的 should, ought to 和表示“可能”的 can, could, may, might。具体用法如下:must 表示较有把握的推测,只用于肯定句,不能用语否定句或疑问句。用法如下:1)对目前动作的推测,用 must+动词原形。如:You must lose in the mountain.2) 对目前状态的推测,用 must + be + 表语。如:You speak for 4 hours, you must be thirsty.在肯定句中,表示对现在或将来把握不大的推测用 may (might) +动词原形,might 比
9、 may 的可能性更小;对过去把握不大的推测用 may (might) have+ 过去分词。如:The package might come tomorrow.They may have killed the enemies.3、在疑问句中,对现在表示推测用 can (could) +动词原形,对过去表示怀疑则用 can (could) have+过去分词;在否定句中,对现在表示推测用 cant+动词原形,对过去表示推测用 cant (couldnt) have+过去分词。如:It cant be John. He has gone to UK.4、need 的双重身份need 既可作情态动
10、词又可作实意动词,它们的用法不同,如不注意区分,就容易用错。三)系动词连词动词的种类联系动词含有一定意义,它们要与其后做表语的形容词、名词或介词(短语)一起构成合成谓语。系动词按意义可分为三类,而且有自己的特定用法。31、按意义联系动词有:be, appear, seem, keep, remain, continue, stay, prove 等,如:Jim appears very old.、表示感觉的联系动词有 look, feel, smell, sound, taste 等。如:It smells bad.3、表示转变的联系动词有 become, fall, get, go, gro
11、w, turn 等。如:She becomes more beautiful than three years ago.四)行为动词行为动词又称实义动词,它们都含有实在的意义,表示动作或状态,可在句中独立作谓语。行为动词又分为及物动词和不及物动词。、及物动词及物动词后一定要跟宾语,意思才能完整。如:My mother told me she wanted to buy some books for me.2、不及物动词不及物动词意义完整,不需带宾语,但如果有些不及物动词非要带宾语时,必须先加介词后加宾语。如:He only worried about his daughter.二、动词的时态动
12、词的时态有很多。初中阶段主要掌握八种:一般现在时、一般过去时、现在进行时、过去进行时、一般将来时、过去将来时、现在完成时、过去完成时。1一般现在时1)一般现在时态的构成:主语是 I, we, you, they 和名词复数时作谓语的行为动词用原形。主语是 he, she , it 和名词单数时,作谓语的行为动词的词尾变化如下:一般情况 s以 s, x, ch, sh 或 o 结尾 es以辅音y 结尾 去 y 变 ies2)一般现在时态的肯定句、否定句和疑问句形式(以 be 和 like 为例):主 语 肯 定 式 否 定 式 疑 问 式第一、二人称和第三人称复数以及名词复数I am a stu
13、dent.We/You/ They are students.He/ She is a student.I / We/ You/ They/ like music.Many people like music.I am not a student.We/You/ They are not students.He/ She is not a student.I / We/ You/ They/ dont like music.Many people dont like music.Are you a student.Are you/ they students?Is he/ she a stud
14、ent?Do you/ they like music?Do many people like music?3)一般现在时态的用法:现阶段经常性,习惯性的动作 。例如:I get up at six every morning. He plays tennis once a week.现在的状态 例如:My mother is a teacher. She teaches English in a school.客观真理 例如:The earth goes around the sun.44)常用于一般现在时态的时间状语:often usually sometimes always every
15、 day never in the morning 等。一般现在时一般现在时基本用法介绍 一般现在时的功能:1.表示事物或人物的特征、状态。如:天空是蓝色的。_ 你是一位学生._2.表示经常性或习惯性的动作。如:我每天六点起床._我们每天读英语._3.表示客观现实。如:地球绕着太阳转。_ 一般现在时的构成 1. be 动词:主语+be(am,is,are)+其它。如: 我是一个男孩。_ 这是我的书包。_ 2.行为动词:主语+行为动词(+其它) 。如:我们学习英语._ 我每天步行上学。_当主语为第三人称单数(he, she, it)时,要在动词后加“-s“或“-es“ 。 如:玛丽喜欢汉语 _
16、她说英语。_一般现在时的变化: 1. be 动词的变化。 否定句:主语+ be + not +其它。如:他不是工人。_ 我们不是工人。_ 一般疑问句:Be +主语+ 其它。如:-Are you a student? - Is Li Ping a teacher?_ _特殊疑问句:疑问词+一般疑问句。如:我的自行车在哪里?Where is my bike ?这是什么?_ 你多大 _2.行为动词的变化。否定句:主语+ dont( doesnt ) +动词原形(+其它)。如: 我不喜欢面包。_ 他们不踢足球。_当主语为第三人称单数时,要用 doesnt 构成否定句。如:他不喜欢汉语。_ 她不踢足球。
17、_一般疑问句:Do( Does ) +主语+动词原形+ 其它。如:你常常踢足球吗?_ - Yes, I do. / No, I dont.当主语为第三人称单数时,要用 does 构成一般疑问句。如:她骑自行车上班吗?_ - Yes, she does. / No, she doesnt.特殊疑问句:疑问词+一般疑问句。如:你父亲是怎样上班的?_? 他坐公共汽车上班。_动词+s 的变化规则1一般情况下,直接加-s,如: cook-cooks, milk-milks2以 s. x. sh. ch. o 结尾,加-es,如:guess-guesses, wash-washes, watch-watc
18、hes, go-goes3以“辅音字母+y” 结尾,变 y 为 i, 再加-es,如:study-studies一般现在时用法专练:一、 写出下列动词的第三人称单数 drink_go_stay_make_look_have_5_pass_ carry _come_ watch_ plant_ fly _study_ brush_ do_ teach_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
19、. 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. M
20、ike _(like) cooking. 12. They _(have) the same hobby.13. My aunt _(look) after her baby carefully. 14. You always _(do) your homework well. 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.20. What day _(be) it today? Its Sa
21、turday.三、按照要求改写句子1. I do my homework every day.(改为一般疑问句,作否定回答)_2. Amy likes playing computer games.(改为一般疑问句,作否定回答)_3. We go to school every morning.(改为否定句)_4. He speaks English very well.(改为否定句)_5. I like taking photos in the park.(对划线部分提问)_6. John comes from Canada.(对划线部分提问)_四、改错(划出错误的地方,将正确的写在横线上
22、)1. Is your brother speak English? _ 2. Does he likes going fishing? _3. He like playing games after class. _ 4. Mr. Wu teachs us English. _5. She dont do her homework on Sundays. _2. 现在进行时1)现在进行时的构成:Am/is/ are+ v-ing 是现在进行时的构成形式v-ing 现在分词的构成:6一般情况 +ing以不发音字母 e 结尾的单词。去 e,加 ing +ing以辅音字母y 结尾的单词 去 e+i
23、ng以重读闭音节结尾的单词,末尾只有一个辅音字母时. 双写词尾字母+ing2) 现在进行时的肯定肯定句、否定句、疑问句形式:主 语 肯 定 式 否 定 式 疑 问 式第一、二人称和第三人称复数以及名词复数I am driving.He/She/It is working.We/You/They are doing something.I am not driving.He/She/It is not working.We/You/They are not doing anything.Are you driving?Is he/she/it working?Are you/they doing
24、 something?3)现在进行时的用法:1. 说话时正在进行或发生的动作(动作是在说话时正在进行) 。例如:She is having a bath now.2. 现阶段正在进行或发生的动作(但是动作并不是必须在说话时正在进行) 。例如:You are working hard today.Kate wants to work in Italy, so she is learning Italian.The population of the world is growing very fast.频度副词 always, forever 等词连用时, 表示某种强烈的感情。如:He is a
25、lways trying out new ideas. (表示欣赏,表扬)表示按计划即将发生的动作(仅限于 go, come, arrive, leave, start, fly, begin, stay 等动词) 。如:The party is beginning at 8:00 oclock.6) 常用于现在进行时态的时间状语: now 等。often usually sometimes always every day never in the morning 等。例题解析:举一反三,学的更轻松!1I dont think that its true. Shes always _ lie
26、s.A. tell B. tells C. telling D. told解析:always 在这里应现在进行时连用, 带有感情色彩, 表示讨厌。选 C.2. How _ you _ with the new job?A. do, do B. do, get along C. are, doing D. are, getting on解析:表示现阶段正在发生的动作,用现在进行时。选 D.3- Are these socks yours?- No. Mine _ outside on the clothes line.A. are hanging B. have hung C. hang D.
27、hung解析:hang 意为悬挂, hung 意为上吊、绞死,先排除答案 B、D 。根据前后句意可判断出现在的状态,应用现在进行时。应选 A.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_7read_have_sing_dance_put_see_begin_shop_ buy_ love_ live_ take_ come _ get_stop_ sit _二.填空:(用现在进行时态完成)1. She _ _ (walk) now. 2. They _ _ (sitt) on the chair. 3. Cindy
28、_ _ (watch) TV. 4. Joe _ _ (water) in the garden. 5. Look, Nick _ _ (come). 6. Listen, she _ _ ( sing). 7. Look, the girl _ _ (run). 8.My mother and my father _ _ (dance). 三.根据汉语意思填空:1.你要去哪儿啊? Where are you _? 2.Nick 正在爬攀登架. Nick _ (climb) the jungle gym.3.他们正在读书. They _ books now. 4. 爷爷正在吸烟. Grandp
29、a _(smoke).5.我在做作业. I _ (do) my homework. 6.我妈妈正在做饭.My mother _(cook).7.Jerry 在喝柠檬果汁. Jerry _ lemon juice. 8.他正在写信. He _ a letter.四.填入 be 动词的适当形式1.He _ drinking water. 2.The eagle _ flying in the sky. 3.Children _ playing in the playground. 4.They _ working now. 5.I _ going to the supermarket. 五、用所给
30、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 . 4. What _ you _ ( do ) now? 5. Look . They _( have) an English lesson . 6.They _(not ,water) the flowers now. 10._Helen_(wash )clothes? Yes ,she is .六、句型转换:1. They are doing housework .(分别改成一般疑问句和否定句 ) _2T
31、he students are cleaning the classroom . ( 改一般疑问句并作肯定和否定回答)_3Im playing football in the playground .(对划线部分进行提问) _4Tom is reading books in his room. (对划线部分进行提问) _七用动词的适当形式填空(现在进行时与一般现在时对比练习)She _ (go) to school at eight oclock. 2. Its six oclock. They are _ supper. (eat)He usually _ up at 6:00.(get )
32、 4. She _ (live) in Beijing.8They are _ (dig) a hole (洞). 6. My father _ (mend) his model(模型 ) plane these days.九.造句:1).she,the window,open,now.(用现在进行时连词成句.)_2).is,who,the window,cleaning?(连词成句)_3).She is closing the door now.(改成否定句)_4.)You are doing your homework.(用“I“作主语改写句子)_5).they,the tree,sing
33、,now,under.(用现在进行时连词成句.)_6).The Young Pioneers are helping the old woman.(改成一般疑问句)_十、用括号中动词的适当形式填空: 1. My parents _(watch )TV now. 2. What _ your mother _(do)now? 3. _ you _(listen)to music? Yes, I am. 4. Look, Miss Chen _ football.(play) 5. Tom and his sister _(wait)for you over there. 6. Now Class
34、 3 and Class 4_(have)a test. 3一般将来时1)一般将来时的构成:1. 助动词 will(shall)+动词原形 2. am / is / are +going to +动词原形 2)一般将来时的用法:1将要发生的动作。例如:I will leave for Beijing tomorrow.2将要存在的状态。例如:This time next year I will be in Japan. Where will you be?3打算要做的事。 例如:Are you going to watch the film on television tonight?3) 常
35、用于一般将来时的时间状语:tomorrow next week in 2008 等。 例题解析:举一反三,学的更轻松!1. I_ for Hong Kong on Saturday. Will you go to see me off at the airport?A. am leaving B. am left C. am going to leaving D. left解析:趋向动词 leave 可用现在进行时表将来。选 A。2.I_ to see grandma and help her with some housework every week.A. came B. am going
36、 come C. come D. will come解析:此题虽然有 every week, 但句意中表达的事将要去做的经常性动作。应该用一般将来时。因此选 D。3. We Chinese _ the Olympic Games in 2008.A. held B. shall holding C. are holding D. are going to hold解析:本题的时间状语是将来的时间, 所以选用一般将来时, A、D 都删去。shall 后面应跟动词原型,故应选 D.一、填空。1. 我打算明天和朋友去野炊。9I_ _ _ have a picnic with my friends t
37、omorrow. =I _ have a picnic with my friends tomorrow.2. 下个星期一你打算去干嘛? 我想去打篮球。What _ _ _ _ _ next Monday? I _ _ _ play basketball.= What _ you do next Monday? I _ play basketball.3. 你妈妈这个周末去购物吗?是,她要去买一些水果。_ your mother _ _ go shopping this _? Yes, she _. She _ _ _ buy some fruit.二、改句子。1. Nancy is goin
38、g to go camping(野营).(改否定) Nancy _ going to go camping.2. Ill go shopping this afternoon.(改否定)I _ go shopping this afternoon . 3. Im going to get up at 6:30 tomorrow.(改一般疑问句) _ _ _ to get up at 6:30 tomorrow?4. We will meet at the bus stop at 10:30.(改一般疑问句)_ _ meet at the bus stop at 10:30.5. She is
39、going to listen to music after school.(对划线部分提问) _ _ she _ _ _ after school?6. My father and mother are going to see a play the day after tomorrow.(同上)_ _ going to see a play the day after tomorrow.三、用所给词的适当形式填空。1. My brother _ (go) to Shanghai next week.2. What do you usually do at weekends? I usually _(watch) TV and _(catch) insects(昆虫)? 3. Mary _ (visit) her grandparents tomorrow.4. Liu Tao _ (fly) kites in the playground yesterday.5. My mother and I _(clean) our garden tomorrow.6.Where _ your parents _ (have) lunch tomorrow?7 .She _