中考英语复习资料语法基础复习专题
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初中英语中考复习资料(超全语法、词组、句型、作文及知识点大全)es is very good.[误]May I borrow two radioes?[正]May I borrow two radios?[析]以o结尾的名词大都是用加es来表示其复数形式,但如果o前面是一个元音字母或外来语时则只加s就可以了。
这样的词有zoo-zoos,piano-pianos.[误]This is a Mary''s dictionary.[正]This is Mary''s dictionary.[析]如名词前有指示代词this, that, these those,及其他修饰词our,some, every, which, 或所有格时,则不要再加冠词。
[误]There are much people in the garden.[正]There are many people in the garden.[析]可数名词前应用many, few, a few, a lot of 来修饰,而people是可数名词,而且是复数名词,如:The people are planting trees here.[误]I want a few water.[正]I want a little water.[析]不可数名词前可以用a little, little, a lot of, some来修饰,但不可用many,few来修饰。
[误]Thank you very much. Your family is very kind to me.[正]Thank you very much. Your family are very kind to me.[误]Tom''s and Mary''s family are waiting for us.[正]Tom''s and Mary''s families are waiting for us.[误]I''m sorry. I have to go. Tom''s families are waiting for me.[正]I''m sorry. I have to go. Tom''s family are waiting for me.[析]集合名词如果指某个集合的整体,则应视为单数,如指某个集合体中的个体则应视为复数。
中考英语语法总复习(精华版)Ⅰ词类。
专有名词:表示人名、月份、日期、地名等。
如China, John, London, the USA, Harbin .个体名词:表示单个的人或事物。
如boat, chair, desk, apple .集体名词:表示一群人或一些事物的总称。
如family, people, class, police . 可数名词普通名词物质名词:表示无法分为个体的物质。
如water, air, tea, sea, money, cotton .抽象名词:表示抽象概念的词。
如health, help, work, friendship . 不可数名词 2.名词的数。
可数名词有单复数,不可数名词没有单复数。
3.名词的格:名词有三个格:主格(作主语)、宾格(作宾语)、和所有格。
其中只有名词的所有格有形式变化。
(二)冠词1.定冠词-the .○1特指某(些)人或某(些)事物。
The students are very good.○2说话人与听话人都知道的人或事物。
Where is the toilet ?○3重复提到上文的人或事物。
I have a cat , the cat is white and black .○4表示世界上独一无二的事物。
The moon moves around the earth .○5形容词最高级和序数词前和表示方位的名词前。
I am the oldest . He is the first to school . I live in the south .○6乐器的名称前常用定冠词-the 。
I like playing the piano / violin .○7和某些形容词连用,使形容词名词化,代表某一类人。
We should help the poor .○8放在某些专有名词前。
We will go to visit the Great Wall next week . the people’s Republic of China .○9放在姓氏的复数形式前,表示全家人或夫妇两人。
中考英语语法专题复习(含答案)一、单项选择题1. — __________ you ever ________ to Australia?— Yes, I have been there twice.A. Do; goB. Have; goneC. Did; goD. Will; go- 答案:B2. — Could you please tell me ________ ?— Sure. The library is just around the corner.A. how can I get to the libraryB. how I can get to the libraryC. how get to the library I canD. how can get I to the library- 答案:B3. My father is a doctor. He ________ from Shanghai University of Traditional Chinese Medicine in 1998.A. graduatedB. have graduatedC. was graduatingD. has been graduated- 答案:A二、完成对话根据对话内容,从方框中选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。
A: Hi, Linda. I heard you went to the theater last night. How wasthe play?B: Oh, it was fantastic! The actors were really talented and the story was captivating.A: That sounds great. What was the play about?B: It was a love story set in 19th-century England. The main characters were a wealthy young woman and a poor but passionate writer.A: That sounds interesting. __________B: Of course. The ending was quite unexpected. The heroine chose love over money and followed her heart in the end.A: That's a beautiful message. __________B: Absolutely. It made me really appreciate the power of love and the importance of staying true to oneself.A: I should definitely go see it then. Thanks for sharing your experience, Linda!选项:A. Did you enjoy the music?B. Was the acting good?C. Did the play have a happy ending?D. Who was the main actress?E. Were there any interesting twists in the plot?- 答案:C E三、改错题请找出下列各句中的语法错误并改正。
史上最全的中考英语语法必考知识点大全
一、时态
1.一般现在时:叙述现在地基本情况及习惯性动作,主动形式表示现在状态或现在客观存在的事实。
2.一般过去时:表示过去其中一时间发生的动作和存在的状态。
3.现在完成时:表示从过去其中一时间开始,一直延续到现在的动作或状态。
4.现在进行时:表示此刻正在发生的动作或存在的状态。
5.一般将来时:表示将来其中一时刻或其中一段时间内发生的动作或存在的状态。
6.过去将来时:表示过去时预计或计划将来要发生的动作或存在的状态。
7.状语从句中的时态:
(1)主句是一般现在时,从句一般用一般现在时;
(2)主句是一般过去时,从句一般用一般过去时;
(3)主句是一般将来时,从句一般用一般将来时;
(4)主句是现在完成时,从句一般用过去将来时。
二、句法结构
1.主谓一致:谓语动词表达的动作所发生的时间和主语之间是一致的关系。
2.主语从句:即用疑问词引导的从句,其主语在句中充当整个句子或者句子成分的主语。
3.主谓宾:即主语、谓语动词和宾语三部分的句子结构。
4.定语从句:即用关联词引导的附加句,其作用是对主句中的一些名词或代词进行补充说明。
5.宾语从句:即用从属连词引导的从句,其作用是把从句的内容作为宾语放在动词后面。
初中英语语法-15个专题汇总(带习题和答案)目录专题一名词 (2)专题二数词、冠词 (9)专题三介词、连词 (15)专题四代词 (22)专题五形容词、副词 (31)专题六动词的分类 (39)专题七情态动词、系动词 (46)专题八动词时态 (53)专题九被动语态 (60)专题十非谓语动词 (66)专题十一简单句、并列句 (76)专题十二祈使句、感叹句 (84)专题一三宾语从句 (91)专题一四定语从句 (99)专题一五状语从句 (106)专题一名词1.名词的数1.概述: 名词按其表示的事物的性质分为可数名词和不可数名词。
2.可数名词及其单复数:可数名词有单复数变化,其前通常用不定冠词和数词来修饰,还可用many, few, a few, some, any, plenty of, lots of, a number of 等修饰。
构成名词复数形式的方法分为规则法和不规则法两种。
1)复数的规则构成法:绝大多数英语中的名词复数都是在单数名词后加上词尾-s或-es构成的。
具体规则如下图:a.单复同形的:Chinese-Chinese, Japanese-Japanese, deer-deer, sheep-sheep,fish-fish(表示鱼的数量)b. 熟记下列词的复数变化:man-men, woman-women, policeman-policemen, foot-feet, tooth-teeth, mouse-mice, child-childrenc. 以man, woman做定语构成的复合名词,变复数时要全变:a man teacher-two men teachers; 其他情况一般只变主体名词而作定语的名词不变:a girl student-two girl students3. 不可数名词:不可数名词没有单复数。
如:water, meat, air等。
在表示数量时,通常用以下方法。
中考英语精品复习语法基础(汇编4篇)(实用版)编制人:______审核人:______审批人:______编制单位:______编制时间:__年__月__日序言下载提示:该文档是本店铺精心编制而成的,希望大家下载后,能够帮助大家解决实际问题。
文档下载后可定制修改,请根据实际需要进行调整和使用,谢谢!并且,本店铺为大家提供各种类型的实用资料,如工作总结、述职报告、心得体会、工作计划、演讲稿、教案大全、作文大全、合同范文、活动方案、其他资料等等,想了解不同资料格式和写法,敬请关注!Download tips: This document is carefully compiled by this editor.I hope that after you download it, it can help you solve practical problems. The document can be customized and modified after downloading, please adjust and use it according to actual needs, thank you!And, this store provides various types of practical materials for everyone, such as work summaries, job reports, insights, work plans, speeches, lesson plans, essays, contract samples, activity plans, and other materials. If you want to learn about different data formats and writing methods, please pay attention!中考英语精品复习语法基础(汇编4篇)2024年中考英语精品复习语法基础篇1XX年中考英语精品复习语法基础非谓语动词指的是在句中起名词,形容词或副词作用的动词形式,而不是作谓语的动词形式。
考纲重点语法必背一、考纲重点语法总结(一)一.词类(Parts of Speech)名词英文名称The Noun(缩写为n.)表示人或事物的名称例词boy,clock,book等冠词英文名称The Article(缩写为art.)用在名词前帮助说明名词所指的人和或事物。
例词a(an),the代词英文名称The Pronoun(缩写为pron)用来代替名词、形容词或是数词例词we,that,his,what形容词英文名称The Adjective(缩写为adj.)用以修饰名词,表示人或事物的特征例词old,red,fine,good.数词英文名称The Numeral(缩写为num.)表示数量或是顺序。
例词one,thirteen first动词英文名称The Verb(缩写为v.)表示动作或状态。
例词sit,go,be(am,is,are)副词英文名称The Adverb(缩写为adv.)修饰动词、形容词或其他副词。
例词not too,here,very介词英文单词The Preposition(缩写为prep.)表示名词、代词等和句中其他词的关系。
例词in,on,of,to,under.连词英文单词The Conjunction(缩写为conj.)用来连接词与词、短语与短语或句与句。
例词and,or,but.感叹词英文单词The Interjection(缩写为interj.)表示说话时的喜悦、惊讶等情感。
例词oh,hello,hi,er.二.名词(Nouns)1.总的说来,名词分专有名词和普通名词两类。
专有名词:表示具体的人,事物,地点或机构的专有名称。
Lucy China中国Asia亚洲Beijing北京。
专有名词的第一个字母要大写。
普通名词:表示某些人,某类事物,某种物质或抽象概念的名称。
例如:teacher老师tea茶reform改革普通名词又可进一步分为四类1)个体名称:表示单个的人和事物。
中考英语重点语法复习被动语态一、基础知识一、各时态被动语态的谓语结构二、含情态动词被动语态的谓语结构Can/must/should/may/might...+be+p.p.二、分知识点例题【例1】.Wuchazi Bridge ________ as an Internet-famous place in Chengdu.A.regards B.is regarded C.is regarding【例2】.Our sports meeting _______ until the end of July.A.puts off B.will put off C.will be put off【例3】.Earth Day ______ in 1970 for the first time, and the Day now includes events in more than 190 countries and regions (地区).A.celebrated B.was celebrated C.is celebrated D.has been celebrated【例4】.When I was young, I ________ by my grandparents.A.look after B.looked after C.am looked after D.was looked after【例5】.A number of volunteers will ________ for the 2022 Beijing Winter Olympic Games. A.be needed B.are needed C.are needing D.be needing【例6】.—Tom is always careless with his schoolwork.Could you help him?—No problem!I think he _______ to think twice before starting.A.should be told B.shouldn't be told C.should tell三、巩固训练1.As soon as books ________, the volunteers posted them to the students in Hope Primary School. A.are raised B.were raised C.raised D.have raised2.—Did you notice the students ________ a few why questions in Mr. Zhang’s class?— Yes, I think he wanted to train their abilities of deep thinking.A.are asked B.must be asked C.have been asked D.were asked3.The play Teahouse ________ by the famous Chinese writer Lao She.A.wrote B.was writing C.was written4.Now waste from daily life in the city of Shanghai ________ to be separated into four different groups.A.is requiring B.is required C.was required D.required5.— Why have I never seen this kind of 5G mobile phone?— Because it ___________ by Huawei last week.A.was produced B.would produce C.have produced D.was producing 6.—Sir, I have trouble doing the voluntary work for the 20th Games of Jiangsu Province in Taizhou. —Don’t worry. A lot of support ________ soon.A.is offered B.will be offered C.was offered D.were offered7.The blender________ for making a banana milk shake just now.A.will be used B.was used C.is used8.—How clean your bike is! —Thank you. It ________ very often.A.is washed B.washes C.was washing D.washed9.It is reported that the new robot ________ by a middle school student three years ago. A.invented B.invents C.was invented D.is invented10.—China is getting stronger and stronger. —Yes. So Chinese________ by more and more foreigners.A.learn B.learned C.is learned D.was learned11.Where we should go ________ next Friday.A.is decided B.was decided C.will be decided D.has been decided12.With the development of China, Chinese __________ by more and more people in the world. A.speaks B.is spoken C.speak D.is speaking13.Our school library ________ with plants, lovely desks and chairs, so I feel relaxed while studying or reading there.A.decorates B.decorated C.is decorated D.was decorating14.If the rivers __________, farmers can’t use the water for their crops.A.polluted B.were polluted C.are polluting D.are polluted15.In the year of 2020, each of us ________ by the people like Zhong Nanshan and Li Lanjuan who taught us how to fight against the difficulties in life with a strong will.A.were greatly encouraged B.greatly encouragesC.greatly encouraged D.was greatly encouraged16.China Panda Train from Chengdu to Zunyi _________ to use on March 28, 202l.A.is put B.was put C.will be put D.putsst year Huai'an Flyover(高架) _________. Now it brings much convenience to people. A.finished B.finishes C.is finishing D.was finished18.Many comic books ______ into cartoons in the past 40 years.A.make B.are made C.have make D.have been made19.—I hate sweeping the floor.—Why not buy a sweeping robot? It ________ widely nowadays.A.use B.is used C.was used D.used20.So far this year, many new houses ________ in Wenchuan with the help of the government. A.build B.are built C.will build D.have been built21.These great books ________ by people all over the world today.A.were read B.read C.are read22.How delicious the cake is! It_____________ by my grandmother this morning.A.made B.is made C.was made23.That machine is broken. It ________ tomorrow.A.repaired B.was repaired C.will repair D.will be repaired24.To celebrate the 100th birthday of the Communist Party of China, a speech competition________ in our school last week.A.hold B.held C.is held D.was held25.Fishing _________ in order to protect the ecosystem of Hanjiang River.A.allows B.is allowed C.isn’t allowed D.won’t allow26.A 3-kilometer-long bridge ________ in our hometown three years ago.A.has built B.is built C.was built27.—Can you go out with me tonight?—Sorry, my mother won’t allow me to go out unless my homework __________.A.will be finished B.was finished C.finishes D.is finished28.The Monkey King is a traditional Chinese cartoon hero. Today, he ________ by people of all ages.A.will love B.was loved C.is loved D.will be loved29.In the big earthquake of Gansu, people ______ to the safe places by the army.A.take B.took C.were taken30.In our English class, many chances ________ to students to show themselves.A.offer B.are offered C.offered D.are offering31.Our plan to have a graduation ceremony_____in the next class meeting.A.was discussed B.will discuss C.is discussed D.will be discussed32.As the most exciting and traditional way to shop, street markets __________here and there in China these days.A.find B.found C.are found D.were found33.—Our school sports meeting ___________ next week. Which sport will you take part in? —The long jump and the high jump. I'm good at jumping.A.holds B.held C.was held D.will be held34.—What’s wrong with Dale? — He ___________ with others in his class just now. He’s not happy about that.A.is compared B.was compared C.compares D.compared35.I think e-books will _______more than paper books in the future.A.use B.be used C.used36.— Do we have to read anything next week, Mr Wu?— Sure, You ________ to read Black Beauty from pages 58 to 85.A.were expected B.will expect C.are expecting D.are expected37.— Lily, cars are increasing very fast nowadays.— Actually, lots of convenience (方便) ________ for us.A.provided B.provided C.is provided38.—The last Beidou GEO-3 ______ into space successfully on June 23, 2020.—As Chinese, we feel proud of it.A.sends B.sent C.is sent D.was sent39.—Mr. Wang is very famous in our school.—That's for sure. He ________ by reporters tomorrow.A.interviews B.interviewed C.is interviewed D.will be interviewed40.Our sports meeting _______ until the end of July.A.puts off B.will put off C.will be put off41.Now teenagers ________ to do voluntary work for their local commodities.A.are encouraged B.were encouraged C.have encouraged D.are encouraging 42.—_________ the Communist Party of China (中国共产党) founded in 1921?—Yes, and it’s her 100th birthday this year.A.Is B.Was C.Has D.Have43.—Every year, millions of plastic bottles ________ away, polluting the land and waterways. —That’s terrible. We should protect our environment.A.threw B.are thrown C.have thrown D.were thrown44.Rainbows ________ when sunlight passes through small drops of water in the sky. A.produce B.produced C.are produced D.were produced45.—Will you go to Lisa's housewarming party next Sunday? —Well, if I________, I will go on time.A.invite B.will invite C.am invited D.will be invited46.“I’m still working because I’m still capable and hope to guide more young people,” said Wu Mengchao when he _______.A.is interviewed B.is interviewing C.was interviewed D.was interviewing47.Today, many winter Olympic sports ________ even by children.A.enjoyed B.enjoy C.were enjoyed D.are enjoyed48.—What do you know about the earthquake happened in the morning? —The wounded people ________ to the hospital in time.A.are brought B.were brought C.will be brought49.—Students begin to pay more attention to subjects of art education.—That’s true. They ________ in senior high school entrance examination.A.are tested B.were tested C.will be tested50.Chinese tea is very popular, and it ________ to many different parts of the world.A.is sent B.sends C.has sent51.A lot of teenagers think as they are older and wiser, they ________ to make their own decisions.A.should allow B.shouldn’t allow C.should be allowed D.shouldn’t be allowed 52.No matter how many difficulties we have, I believe all the problems can ________ in the end. A.solve B.be solved C.answer D.be answered53.—What do you think of the games on the internet?— I think they _________ for students during the weekdays.A.should be closed B.are closed C.closed D.were closed54.Some people think trees ________ on Tree Planting Day only.A.should plant B.should be plant C.shouldn’t be planted D.should be planting 55.Some people think trees________on Tree Planting Day only.A.should plant B.should be plant C.should be planted56.—What can we do to protect our environment, Laura?—To make our city more beautiful, rubbish _______ into the river.A.needn’t be thrown B.mustn’t be thrown C.can’t throw D.may not throw 57.The young tree ________ well when it is planted.A.mustn’t watered B.should be watered C.must water D.should water58.We’ll have a birthday party for the child. A pet dog ______ to him as a gift.A.may give B.may be given C.must give D.must be given59.More dinosaur fossils(化石), including footprints, bones or eggs, could ________ in the future. A.discover B.be discovered C.have discovered D.be discovering60.These days, Health Code should ________ before entering public places.A.show B.be shown C.be showing【参考答案】【例1】B 【例2】C 【例3】B 【例4】D 【例5】A 【例6】A巩固练习1.B2.D3.C4.B5.A6.B7.B8.A9.C 10.C11.C 12.B 13.C 14.D 15.D 16.B 17.D 18.D 19.B 20.D21.C 22.C 23.D 24.D 25.C 26.C 27.D 28.C 29.C 30.B31.D 32.C 33.D 34.B 35.B 36.D 37.C 38.D 39.D 40.C41.A 42.B 43.B 44.C 45.C 46.C 47.D 48.B 49.C 50.A51.C 52.B 53.A 54.C 55.C 56.B 57.B 58.B 59.B 60. B。
中考英语复习资料大全1. 语法篇- 动词时态:包括一般现在时、一般过去时、一般将来时等常用时态的概念和使用方法。
- 名词的单复数:研究名词的复数形式,以及一些特殊的名词变化规则。
- 代词的使用:介绍一些常见的代词及其在句子中的作用和用法。
- 形容词和副词:了解形容词和副词在句子中的修饰作用,以及它们的比较级和最高级形式。
- 介词和连词:介绍常用的介词和连词,以及它们在句子中的连接作用。
- 句子结构:研究句子的基本结构,包括主谓结构、主谓宾结构等。
- 特殊句型:介绍一些常见的特殊句型,如祈使句、感叹句、条件句等。
2. 阅读篇- 短文理解:练阅读并理解一些简短的英语文章,提高阅读速度和理解能力。
- 阅读技巧:研究一些阅读技巧,如快速扫读、略读、推测词义等,提高阅读效率。
- 阅读训练:进行大量的阅读训练,积累词汇量,提高阅读水平。
- 阅读理解题:做一些阅读理解题,锻炼对文章内容的综合理解和筛选能力。
3. 写作篇- 书面表达:研究书面表达的常用句型和写作技巧,练写作短文和作文。
- 话题写作:练根据不同话题进行写作,提高表达能力。
- 写作训练:进行写作训练,积累词汇和句型,提高写作水平。
- 作文评析:分析优秀作文和典型错误,研究写作技巧和改错能力。
4. 听力篇- 听力技巧:研究一些听力技巧,如预测选项、听懂关键信息等,提高听力效果。
- 听力训练:进行大量的听力训练,提高听力理解和反应能力。
- 听力材料:找一些中考听力材料进行听写和模拟考试,熟悉考试形式和题型。
以上是中考英语复习资料的大致范围,希望对你的备考有所帮助。
祝你取得优异的成绩!。
冲击2010年中考英语精品复习资料语法基础-8动词不定式是一种非谓语动词的形式非谓语动词指的是在句中起名词,形容词或副词作用的动词形式,而不是作谓语的动词形式。
动词的非谓语形式分为动名词,分词,动词不定式。
Climbing mountain is a good exercise. (Climbing..., 动名词起名词作用)爬山是一项好运动。
Do you know the man wearing a white shirt. (wearing ... 分词起形容词作用)你认识那个穿白衬衣的人吗?He gets up early to catch the first bus. (to catch .... 不定式起副词作用)他早早起床是为了赶上第一班汽车。
谓语动词和非谓语动词的区别:1) 谓语动词在句中可单独作谓语,而非谓语动词不能单独作谓语。
Miss Mary teaches us English.玛丽教我们英语。
(teaches 动词作谓语)Mr.Victor came to our classroom to have a talk with us last week.维克托先生上周来到了我们教室和我们谈话。
(to have a talk.... 不定式作状语)2) 谓语动词受主语的人称和数的限制,而非谓语动词形式没有这种限制。
Larke likes the pop music.拉克喜欢流行音乐。
(动词用单数第三人称形式)Larke has nothing to do today.拉克今天没什么事要做。
(do 用原形)非谓语动词的特征:1 如果非谓语动词是及物动词,后面须跟宾语。
Studying English is my favorite.学习英语是我的爱好。
(studying 后跟宾语)To help him is my duty.帮助他是我的责任。
(help 后跟宾语)2 非谓语动词可以带有自己的状语或逻辑主语。
Working under such a condition is terrible.在这样的环境下工作太可怕了。
(under such a condition 是working 的状语)It's too difficult for him to master English in such a short time.他在这么短的时间内掌握英语太难了。
(for him 作不定式的逻辑主语)3 非谓语动词仍有语态和时态的变化。
I am sorry to have kept you waiting long.对不起让你久等了。
(to have kept...是不定式的完成形式)Seen from the mountain, the city looks much more beautiful.从山上看,这座城市美丽多了。
(Seen from...是分词的被动形式)4 非谓语动词在句中可以当成名词或者形容词来使用。
Our coming made him happy.我们的到来使他很高兴。
(coming 起名词作用)There are two big swimming pools here.这儿有两个大型游泳池。
(swimming 起形容词作用)非谓语动词的形式变化:不定式主动被动一般to write to be written进行to be writing/完成to have written to have been written完成进行to have been writing/现在分词主动被动一般writing being written完成having written having been written过去分词一般written动名词主动被动一般writing being written完成having written having been written动词不定式:动词不定式是由to + 动词原形构成,在句中起名词,形容词和副词的作用,可以担任除谓语以外的其它任何成分。
1 动词不定式作主语:To mast a language is not an easy thing.掌握一门语言不是一件容易的事情。
To teach English is my favorite.教英语是我的爱好。
It's my pleasure to help you.很乐意帮助你。
动词不定式作主语时可以放在后面,而用it 作形式主语放在原主语的位置上。
It's very kind of you to have given us much help.你给了我们那么多的帮助真是太好了。
It's necessary to find the witness.有必要找到目击者。
2 动词不定式作宾语:某些及物动词可以用动词不定式作宾语,这些动词有decide, begin, help, begin, want, wish, like, forget, learn, ask.What I wish is to learn English well.我所希望的是把英语学好。
I like to help others if I can.如果有可能的话,我喜欢帮助别人。
3 动词不定式作宾语补语。
We expect you to be with us.我们希望你和我们在一起。
Please ask him to come here quickly.请叫他快过来。
4 动词不定式作表语:What I should do is to finish the task soon.我应该做的是赶快完成任务。
The most urgent thing is to find the boy immediately.当务之急是马上去找孩子。
5 动词不定式作定语:There are many ways to solve the problem.有许多方法能解决这个问题。
I have something important to tell you.我有重要的事情要告诉你。
6 不定式作状语:We went to the hospital to see our teacher.我们去医院看了我们的老师。
She is making a test to get a kind of usefulmedicine from a Tibet flower.她在做试验,从一种西藏花中提取某种有用的药物。
动词不定式的否定形式:not + to + 动词原形The teacher told us not to swim in that river.老师告诉我们不要在那条河里游泳。
It's unfair not to tell us.没告诉我们真是不公平。
带疑问词的不定式:疑问词who, what,which,when, where, how, why 可以加在不定式的前面,构成不定式短语,使含义更加具体。
Where to go is not known yet.去什么地方还不知道。
I don't know when to begin.我不知道什么时间开始。
Can you tell me where to get the battery.你能告诉我哪儿能买到电池吗?Do you know how to get to the station.你知道怎样去车站吗?带逻辑主语的不定式:动词不定式可以带有自己的逻辑主语,构成方法是:for + 逻辑主语+ 不定式。
注意:逻辑主语用宾格形式,for 本身无实际意义,它只表明后面的主语从逻辑上分析是不定式的主语。
It's necessary for us to help each other.我们互相帮忙是必要的。
There are much work for me to finish,有许多工作要我去完成。
动词不定式的时态:动词不定式一般时:表示动作和句中谓语动词的动作同时发生或之后发生。
I helped him put the things into the car.我帮助他把东西放进了汽车。
I want to see you again.我想再见到你。
Would you like to have a rest.你愿意休息一下吗?动词不定式完成时:表示动作在句中谓语动词的动作之前发生。
We are sorry to have kept you waiting so long.对不起,我们让你久等了。
They seems to have known the answers.他们好像知道了答案。
动词不定式进行时:表示动作同句中谓语动词的动作同时发生,强调动作正在进行。
They seem to be working hard.他们好像在努力工作。
动词不定式的被动形式:表示不定式动词同所修饰的名词是被动关系。
He is the man to be examined.他是受检查的人。
There are much work to be done.有好多工作要做。