Unit 4 Wildlife Protection现在进行时被动语态学生版

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必修2UNit4 wild life protection完美版

必修2UNit4 wild life protection完美版

• 4、其他形式表示被动结构 "be +under/ in等介词+名词"结构可代替进行时 被动语态。例:
The city is under attack ( is being attacked ) at th e moment. 目前这个城市正受到进攻。
The bridge is under repair / construction
下面将唱一首民歌。 A party is being held tonight.
今晚将要举行一场晚会。 It is said that a plane is being flown by him t o America at eight next Sunday morning.
据说下周日早上八点他将开飞机去美国。
【正】 Xiao Wang, come here. You ar e wanted on the phone.
足球现在越来越流行了, 换句话说,它被越来越 多的人喜爱。
【误】 Football is becoming more and more p opular. In other words, it is being loved by more and more people. 【正】 Football is becoming more and more p opular. In other words, it is loved by m ore and more people.
Look! The children are being taken care of by their aunt. 瞧!孩子们现在正由姑母照看着。(指现在的情况)
Children are taken good care of at school. 孩子们在学校被照看得很好。(指通常的情况)

必修2 Unit4 Wildlife protection 语法-讲义

必修2 Unit4 Wildlife protection 语法-讲义

专题:必修2:Unit4 Wildlife protection 语法开篇语现在进行时现在进行时的定义现在进行时主要用于表示目前正在进行的动作,有时也可表示现阶段在进行的动作。

The teacher is giving us an English lesson.老师正在给我们上英语课。

The farmers are getting in their crops.农民们正在收割庄稼。

We are making preparations for the conference.我们一直在为会议作准备。

现在进行时的结构现在进行时由“am / is / are + 现在分词”构成。

I’m studying at Yu Cai Senior Middle school.我在育才中学读书。

He is writing on the desk. 他在课桌上写字。

They are talking about their visit to the Great Wall. 他们在谈论游长城的事情。

题一:I'll go to the library as soon as I finish what I________.A. was doingB. am doingC. have doneD. had been doing现在进行时可以表示说话时正在发生的动作,常和now,right now,at this moment等时间状语及动词look,listen等连用,这是现在进行时的“暂时性”特征。

I 'm sitting on a rock near the river with my friends.我和朋友们正坐在河边的石头上。

Mother is preparing supper in the kitchen.母亲在厨房做晚饭。

题二:Look at the students over there. What __________ ?A. do they doB. are they doingC. they are doingD. is he doing现在进行时可以表示目前一段时间内一直在发生的动作,但是说话时不一定在发生,常和these days ,this week,at present等时间状语连用,这是现在进行时的“阶段性”特征。

Book2 Unit4 Wildlife Protection grammar

Book2 Unit4 Wildlife Protection grammar

Unit 4 Wildlife ProtectionGrammar课内探究现在进行时被动语态形式为:is / are / am + being+过去分词1、表示现阶段正在进行的动作现在进行时被动语态也可表示目前这一阶段主语正在承受谓语动词的动作。

例: Rainforests are being cut and burned at such a speed that they will disappear fromthe earth in the near future.2、表示计划或安排现在进行时被动语态还可表示按计划、安排主语将要承受谓语动词的动作(仅限于少数及物动词)。

例:A folk song is being sung next.下面将唱一首民歌。

3、没有进行时的被动语态一些表示状态、心理活动、拥有、存在等的动词(和主动语态一样)一般不用进行时被动语态,常用一般现在时被动语态表示此时此刻或目前主语承受谓语动词的动作。

如: 小王,过来,有你的电话。

【误】Xiao Wang, come here. You are being wanted on the phone.【正】 Xiao Wang, come here. You are wanted on the phone.4、其他形式表示被动结构"be +under/ in等介词+名词"结构可代替进行时被动语态。

The city is under attack ( is being attacked ) at the moment.目前这个城市正受到进攻。

The bridge is under repair / construction(=is being repaired/ constructed).桥梁正在修理中/建筑中。

课后拓展单选1. ---Have you moved into the new house? ---Not yet, the room ______.A. is being paintedB. are paintingC. are paintedD. are being painting2. Look! The ship ______.A. is unloadingB. is being unloadedC. had unloadedD. is been unloaded3. The children ______ many times not to swim in the river.A. toldB. have toldC. have been toldD. are being told4. The new plan ______ now.A. is discussedB. is discussingC. is being discussedD. is going to discuss5. The whole city looks like a big construction site. Many new factories ______.A. have been builtB. are being builtC. are going to be builtD. are building6. A science lab ______ in our school at present.A. is being builtB. has builtC. is buildingD. will be built7. Since your car ______. You may use mine.A. is being repairedB. has been repairedC. is repairingD. is being repairing8. A new cinema ______ here. They hope to finish it next month.A. will be builtB. is builtC. has been builtD. is being built9. Look! The roads ______ now.A. are wideningB. are widenedC. are being widenedD. is to be widened10. --- The window is dirty.--- I know. It _____ for weeks.A. hasn’t cleanedB. didn’t cleanC. wasn’t cleanedD. hasn’t been cleaned11. —I don’t suppose the police know who did it.—Well, surprisingly they do. A man has been arrested and _____ now.A. has being questionedB. is questioningC. has questionedD. is being questioned12. The serious expression on his face suggests that an important matter _____ by him.A. is consideredB. is being consideredC. has been consideredD. was considered13. I don’t know what time it is now. My watch _____.A. is repairingB. has been repairedC. is being repairedD. has repaired14. Can’t you see your problem _____? Have some patience, please.A. is being discussedB. is discussedC. was being discussedD. will be discussed15.I like these English songs and they ______ many times on the radio.A. taughtB. have taughtC. are taughtD. have been taught16.–What’s that noise?-Oh , I forgot to tell you. The new machine_____.A. was testedB. will be testedC. is being testedD. has been tested17.The hotel wasn’t particularly good, but I____ in many worse hotels.A. was stayingB. stayedC. would stayD. had stayed18.No decision______ about any future appointment until all the candidates have been interviewed.A. will be madeB. is madeC. is being madeD. had been made19.In recent years many football clubs ______ as business to profit.A. have runB. have been runC. had been runD. will run20. He ____as a national hero for winning the first gold medal for his country in the Olympics.A. regardedB. was regardedC. has regardedD. had been regarded21. Teenagers ____ their health because thy play computer games too much.A. have damagedB. are damagingC. damagedD. will damage22. The telephone ______ , but by the time I got indoors, it stopped.A. had rungB. was ringingC. ringsD. had rung23.-Do you have any problems if you ____ this job?-Well , I’m thinking about the salary…A. offerB. will offerC. are offeredD. will be offered24. –Did you go to the show last night?- Yeah. Every boy and girl in the area ____invited.A. wereB. have beenC. has beenD. was25.Though we don’t know what was discussed , yet we can feel the topic _____.A. had changedB. will changeC. was changedD. has been changed26. The flowers were so lovely that they _____ in no time.A. soldB. had been soldC. were soldD. would tell27. – Have you handed in your schoolwork yet?-Yes, I have. I guess it _____ now.A. has gradedB. is gradedC. is being gradedD. is grading28. At the end of the meeting, it was announced that an agreement _____.A. has been reachedB. had been reachedC. has reachedD. had reached29. Although the causes of cancer ____, we do not yet have any practical way to prevent it.A. are being uncoveredB. have been uncoveringC. are uncoveringD. have uncovered30. The policeman’s attention was suddenly caught by a small box which ____ placed under the Minister’s car.A. has beenB. was beingC. had beenD. would be31. According to the art dealer, the painting ____ to go for at least a million dollars.A. is expectedB. expectsC. expectedD. is expecting.32. The wet weather will continue tomorrow , when a cold front ___ to arrive.A. is expectedB. is expectingC. expectsD. will be expected33. – Did you watch the basketball match yesterday?- Yes, I did. You know, my brother ____ in the match.A. is playingB. was playingC. has playedD. had played。

Unit 4 Wildlife protection 语法课 现在进行时的被动语态

Unit 4 Wildlife protection 语法课 现在进行时的被动语态
3.How ___is______the new teaching method _b_e_in_g__t_ri_e_d___(try) there?
4. These birds_a_re__b_e_in_g__pr_o_t_e_ct_e_d_(protect) well
there.
is
5. Mbeairnygisprsauicsheda good student that she
4. Scientists are studying the life of the panda at present. The life of the panda is being studied at present .
II. Read the sentences from the book, think about their predictive.
Unit 4 Wildlife Protection
语法课
Lead-in: make sentences
A reporter is interviewing Mary now.
A worker is repairing my car.
Scientist is studying the disease at present.
否定式 主语+__a_m__/ _is_/_a_r_e__n_o_t_b_e_i_n_g__d_o_ne…
一般疑 问式
Am/ is/ are﹢主语 ﹢__b_e__in__g_d__o_n_e__…______?
特殊疑 特殊疑问词+ am/ is/ are +主语+ 问式 ___b_e__in__g_d__o_n_e_______?

现在进行时的被动语态 教案

现在进行时的被动语态 教案

Unit 4 Wildlife ProtectionLearning about GrammarTeacher: Chen YumeiTeaching time: Mar 31th. 2013Teaching place: Class16 Grade 1No4 Middle SchoolTeaching contents: Wildlife ProtectionLearning about GrammarTeaching Tape: New lesson 一.知识目标1.Get students to know the structure of the present progressive passivevoice.2.Let students learn the usages of the present progressive passive voice. 二.能力目标Enable students to use the present progressive passive voice correctly. 三.情感目标Get students to become interested in grammar learning.四.教学重点Get students to master the structure and usages of the present progressive passive voice.五.教学难点Enable students to learn how to use the present progressive passive voice correctly.六.教学方法。

1. Task-based teaching method2. Cooperative learning.七.教学过程。

Step1. Grammar revision1.The structure of the passive voice.Be + Ved (注意:三变:宾语变主语,主语变宾语加By, 谓语由主动变被动。

人教版高中英语必修二Unit4WildlifeprotectionPartⅡ

人教版高中英语必修二Unit4WildlifeprotectionPartⅡ

Unit 4Wildlife protectionPart ⅡGrammar语法指南现在进行时的被动语态现在进行时的被动语态由“is/am/are+being+及物动词的过去分词”构成,表示“某事/某人正在被……”之意。

(1)将现在进行时的主动语态变为被动语态的关键是把be doing变为be being done。

→The students are cleaning the classroom now.学生们正在打扫教室。

→The classroom is being cleaned by the students now.教室正在被学生们打扫。

(2)现在进行时的被动语态注意要点①注意不可遗漏beingLook!The children are being taken care of by their aunt.瞧!孩子们正由他们的姑妈照看着。

②可与部分情态动词连用,表示对正在发生的事情的推测The problem may be being discussed.这个问题可能正在讨论中。

Listen!He must be being criticized by the teacher.听!他一定是在挨老师的批评。

③注意不可忽视“现阶段”现在进行时的被动语态也可表示现阶段正在进行的被动动作。

Many interesting experiments are being carried out these days.如今许多有趣的实验正在进行着。

(说话时,并不一定正在进行)④注意无进行时被动语态的动词一些表示状态、心理活动、拥有、存在等的动词,一般不用现在进行时的被动语态,而常用一般现在时的被动语态。

Xiao Wang,come here.You are wanted on the phone.小王,过来,有你的电话。

Football is becoming more and more popular.In other words,it is loved by more and more people.足球现在越来越流行了,换句话说,它被越来越多的人喜爱。

人教版高中英语必修2同步练习,补习资料:unit 4 Wildlife protection现在进行时态的被动语态及语法讲解

人教版高中英语必修2同步练习,补习资料:unit 4 Wildlife protection现在进行时态的被动语态及语法讲解

现在进行时态的被动语态概念引入1.The sports meeting is being held in our school.我校正在举行运动会2.Another bridge is being built over the Changjiang river长江正在修建另一座大桥3. The environment in that country is being polluted so badly that all the people can’t stand it.那个国家的环境正被严重地污染着,以至于所有的人都感到难以忍受。

4. That bridge is being built. I can’t stand the noise.那座桥正在被建,我受不了这噪音。

上述句子的谓语的时态都是现在进行时,语态都是被动语态,现在进行时的被动语态的形式是易错点,是这个单元要学习的内容。

知识讲解【被动语态的概念】被动语态的概念1. 英语中有两种语态:主动语态和被动语态。

2. 主动语态表示主语是动作的执行者例如:Many people speak Chinese.3. 被动语态表示主语是动作的承受者例如:上句可变为Chinese is spoken by many people.为什么要用被动语态?1.当关注的是事情本身而不是动作的执行者,或者根本不知道动作的执行者时。

如:The meeting was put off.My car has been moved.2.动作的执行者很明确时或强调承受者时。

The ceremony was reported in the news last night.If you break the school rules, you will be punished.3.当动作的执行者是“people”或“one” 时。

He is believed to have invented the computer.Advertisements are seen everywhere.4.修辞的需要,为了使句子更加简练、匀称现在进行时态的被动语态1. 基本构成:be+being+done (be代替is/ are/ am)My new house is being decorated. 我的新房子正在装修。

人教版高中英语必修二Unit 4 Grammar 现在进行时的被动语态

人教版高中英语必修二Unit 4 Grammar 现在进行时的被动语态

4. WWF hopes that more and more wild animals
_w_i_ll_b__e_p_r_o_t_ec_t_e_d_ (protect) in the future.
--- 一般将来时的被动语态
5. By the end of last year, some forests _h_a_d_b__ee_n__d_e_s_tr_o_y_e_d_(destroy) by local farmers.
--- 过去完成时的被动语态
6. The plant must _b_e_w__a_t_er_e_d_(water) every two
da基动语本态结结构构
一般现在时
am/is/are done
一般过去时
was/were done
一般将来时 过去将来时 现在完成时 过去完成时
shall/will be done would be done
have/has been done had been done
被动语态be字变,过去分词跟后面。
二. 现在进行时的被动语态。 1. 从课文中找出以下句子并补充完整。(Page26) 1) We _a_r_e_b__ei_n_g__k_il_le_d_ for the wool beneath
Unit 4 Wildlife Protection
Grammar
Step one: Revision of the Passive Voice 1. Every year over 29,000 antelopes _a_r_e_k_i_ll_e_d
(kill) in Tibet. --- 一般现在时的被动语态 2. In the past, the elephants _w_e_r_e_h_u__n_te_d

(新人教版)高中Unit4WildlifeProtectionSectionⅢGrammar—现在进行时的被动语态教案必修2

(新人教版)高中Unit4WildlifeProtectionSectionⅢGrammar—现在进行时的被动语态教案必修2

语法图解探究发现①It is reported that many a new house is being built at present in the disaster area.②The plan is not being discussed at the meeting now.③Is the house you bought last month being decorated now?④What is being done to the machine?[我的发现](1)以上例句中都用了现在进行时的被动语态,其谓语构成是:is+being+done。

(2)以上例句中第①句是现在进行时被动语态的肯定句式;第②句是否定句式;第③句是一般疑问句式;第④句是特殊疑问句式。

一、含义现在进行时的被动语态表示现在或现阶段正在进行或发生的被动动作,强调主语是动作的承受者。

二、结构1.肯定式:主语+am/is/are +being doneSome trees are being cut down in the park.公园里的一些树木正在被砍倒。

2.否定式:主语+am/is/are+not being doneIt is reported that the water in the lake is not being protected now.据报道,这个湖里的水现在没有得到保护。

3.一般疑问式:Am/Is/Are (not)+主语+being doneAre the babies being taken care of by this nurse?这些婴儿正由这个护士照看吗?4.特殊疑问式:特殊疑问词+am/is/are (not)+主语+being doneWho is being trained for the coming English speech contest?为了即将举行的英语演讲比赛,谁正接受训练?[即时演练1]句型转换They are building a modern school in his hometown.①A modern school is_being_built in his hometown.(改为被动语态)②A modern school isn't_being_built in his hometown.(把①句改为否定句)③Is_a_modern_school_being_built in his hometown?(把①句改为一般疑问句)④Where_is_a_modern_school_being_built?(对①句就in his hometown进行提问)三、用法1.表示说话时正在进行的被动动作。

[配套K12]2017-2018学年高中英语 Unit 4 Wildlife Protection

[配套K12]2017-2018学年高中英语 Unit 4 Wildlife Protection

Unit 4 Wildlife Protection Section Ⅲ Grammar-现在进行时的被动语态语法图解探究发现①It is reported that many a new house is being built at present in the disaster area.②The plan is not being discussed at the meeting now.③Is the house you bought last month being decorated now?④What is being done to the machine?[我的发现](1)以上例句中都用了现在进行时的被动语态,其谓语构成是:am/is/are+being+done。

(2)以上例句中第①句是现在进行时被动语态的肯定句式;第②句是否定句式;第③句是一般疑问句式;第④句是特殊疑问句式。

一、含义现在进行时的被动语态表示现在或现阶段正在进行或发生的被动动作,强调主语是动作的承受者。

二、结构1.肯定式:主语+am/is/are +being doneSome trees are being cut down in the park.公园里的一些树木正在被砍伐。

2.否定式:主语+am/is/are+ not being doneIt is reported that the water in the lake is not being protected now.据报道,这个湖里的水现在没有得到保护。

3.一般疑问式:Am/Is/Are (not)+主语+being doneAre the babies being taken care of by this nurse?这些婴儿正由这个护士照看吗?4.特殊疑问式:特殊疑问词+am/is/are(not)+主语+being doneWho is being trained for the coming English speech contest?为了即将举行的英语演讲比赛,谁正接受训练?[即时演练1] 句型转换They are building a modern school in his hometown.①A modern school is_being_built in his hometown.(改为被动语态)②A modern school isn't_being_built in his hometown.(把①句改为否定句)③Is_a_modern_school_being_built in his hometown?(把①句改为一般疑问句)④Where_is_a_modern_school_being_built?(对①句就in his hometown进行提问)三、用法1.表示说话时正在进行的被动动作。

必修二Unit4Wildlifeprotection--Grammar现在进行时的被动语态课件

必修二Unit4Wildlifeprotection--Grammar现在进行时的被动语态课件

3 The side effects of the new drug are being researched.
4 The request to buy a video for each classroom is being considered.
5 The project to make a new home for pandas is being developed.
Yangtze River. They __a_r_e_n_o_w__b_e_i_n_g__s_tu_d__ie(dnow
study) as their numbers decrease. Another is the
tiger in Northeast China, which is being
Summary: 现在进行时的被动语态
1. 构成: am/is/are (not) + being + V-过去分词 2. 意义: …正在被做.
1. A new library is being built now. 一座新图书馆正在被修建。
2. Some animals are not being protected well enough.
Who is studying the rhino?
The rhino is being studied by Peking
__U_n_i_ve_r_s_it_y_s_t_u_d_en_t_s___.
Who is protecting the African elephant?
The African elephant _is__b_ei_n_g__p_ro_t_e_c_te_d_ by
If I am bgeoinigntfoolalobwuesdy,blyigahtsetdrasntgreeer,t I should _____________________________.

Unit 4 Wildlife protection二 教学设计

Unit 4 Wildlife protection二 教学设计

Unit 4 Wildlife protection(二) 教学案本讲目标被动语态被动结构:be +v-ed现在进行时:am/is/are+ done过去进行时:was/were +done被动语态难点一. 无被动的词: 不及物动词、感官动词:happen,take place,break out,belong to …二. be made/seen/heard to do三. done,being done,to be done,having been done 表被动,非谓语四. 动词短语变被动,打包都变。

take care of—be taken care of以主代被1. 表示物质固有特性时,以主代被。

This kind of material cuts easily.2. Need/want/require+ doing 需要/想要被……The flowers need watering = to be watered.3. Be worth doing This book is worth reading.4. 修饰名词的不定式与句中另一名词或者代词也是主谓关系时。

I have a letter to post.I have a letter to be posted.5. 表语adj.后的动词不定式。

The question is easy to answer.题一:— Hi,Terry,can I use your computer for a while this afternoon?— Sorry. _____.A. It’s repairedB. It has been repairedC. It’s being repairedD. It had been repaired题二:—What was that noise last night?—Oh,I forgot to tell you. The new machine _____.A. is being testedB. would be testedC. was being testedD. had been tested题三:Mary _______ the song at a party.A. heard singB. was heard singC. heard to singD. was heard to sing题四:He has always insisted on his _____DR Turner instead of Mr. Turner.A. been calledB. calledC. having calledD. being called题五:Books of this kind _____well.A. sellB. sellsC. are soldD. is sold题六:Although the causes of cancer ____,we do not yet have any practical way to prevent it.A. are being uncoveredB. have been uncoveringC. are uncoveringD. have uncovered题七:—Why don’t you put the meat in the fridge?—It will ________ fresh for several days.A. be stayedB. stayC. be stayingD. have stayed题八:When the speaker entered the hall,all the listeners ___.A. had seatedB. were seatedC. seatedD. were seating题九:As we joined the big crowd I got ___ my friends.A. separated fromB. separatedC. lost fromD. lost能力提升与拓展题十:Bertie knew there was something in the wind. His mother had been sad in recent days,not sick,just strangely sad. The lion had just lain down beside him,his head warm on Bertie’s feet when Father cleared his throat and began,“You’ll soon be eight,Bertie. A boy needs a proper education. We’ve found the right place for you,a school near Salisbury in E ngland.”His heart filled with a terrible fear,all Bertie could think of was his white lion. “But the lion,” he cried,“What about the lion?”“I’m afraid there’s something else I have to tell you,” his father said. Looking across at Bertie’s mother,he took a deep breath. Then he told Bertie he had met a circus owner from France,who was over in Africa looking for lions to buy. He would come to their farm in a few days.“No!You can’t send him to a circus!” said Bertie. “People will come to see him. He’ll be shut up behind bars. I promised him he never would be. And they will laugh at him. He’d rather die. Any animal would!” But as he looked across the table at them,he knew their minds were quite made up.Bertie felt completely betrayed. He waited until he heard his father’s deep breathing next door. With his white lion at his heels,he crept downstairs in his pajamas,took down h is father’s rifle from the rack and stepped out into the night. He ran and ran till his legs could run no more. As the sun came up over the grassland,he climbed to the top of a hill and sat down,his arms round the lion’s neck. The time had come.“Be wild now,” he whispered. “You’ve got to be wild. Don’t ever come home. All my life I’ll think of you. I promise I will.” He buried his head in the lion’s neck.Then,Bertie clambered down the hill and walked away.When he looked back,the lion was still sitting there watching him;but then he stood up,yawned,stretched,and sprang down after him. Bertie shouted at him,but he kept coming. He threw sticks. He threw stones. Nothing worked.There was only one thing left to do. With tears filling his eyes and his mouth,he lifted the rifle to his shoulder and fired over the lion’s head.56. Bertie’s mother was sad probably because she ______.A. had been seriously ill recentlyB. had decided to send Bertie to schoolC. knew selling the lion would upset BertieD. knew Bertie would hate to go to England57. The underlined word “they” in Para. 4 probably refers to ______.A. some audienceB. other animalsC. Bertie’s parentsD. circus owners58. In the last paragraph,the boy lifted the rifle to ______.A. kill the lion out of fearB. threaten the lion back to the wildC. protect himself from the lionD. show his anger towards his father59. The passage intends to show that ______.A. animal-hunting is popular in AfricaB. parents are sometimes cruel to their childrenC. animals usually lead a miserable life in circusesD. people and animals can be faithful to each otherUnit 4 Wildlife protection(二)讲义参考答案本讲目标被动语态题一:C 题二:C 题三:D 题四:D 题五:B 题六:A 题七:B 题八:B 题九:A 能力提升与拓展题十:56. C 57. A 58. B 59. D。

2020年高中英语Unit4WildlifeProtectionSectionⅣGrammar

2020年高中英语Unit4WildlifeProtectionSectionⅣGrammar

Section ⅣGrammar & Writing第二板块单元写作建议信课时作业Ⅰ. 用现在进行时的被动语态改写句子1.The doctor is examining her.→She is being examined by the doctor.2.They are building a new library in our school.→A new library is being built in our school.3.The students are cleaning the classroom now.→The classroom is being cleaned now.4.They are not starting new nature parks in China.→New nature parks are not being started in China.5.Are they shipping a number of new trucks abroad?→Are a number of new trucks being shipped abroad?Ⅱ. 阅读理解Although onions taste delicious,watering eyes come with the process when you cut them up. Thankfully,Good Housekeeping has suggested some tips to prevent yourself from crying while you are trying to cut up an onion.According to the findings from the Institute,putting onions in a fridge 30 minutes before cutting can prevent the annoying hurt,as the cold stops tear­jerking (催泪的) gas from being produced.Another way to reduce the gas released by the onion is to put it in water for a while. Good Housekeeping recommends:“Cut the end off the onion and then put it straight into a bowl of water. The water will draw out the acid making your tears fewer when you cut it. ”When an onion grows,it mixes with sulfur(硫) in the soil to create a special mineral acid. When the onion is cut into pieces,it reacts and creates a gas. As it reaches your face,this annoying gas causes the eyes to produce tears.The root is where the gases are most concentrated,so it is recommended that this part of the onion be left on as you cut it to avoid uncomfortable eyes. Do this by cutting the vegetable in half down the middle,then cut off part of one side to create a flat surface. Then,place the onion with its flat surface down and cut it towards the root.Also,to reduce the gas's effect on your eyes,cut it next to a window or neara fan so the gas is blown away from your face. And take care to use a sharp knife;this will make it easier to move through the vegetable,causing fewer cells to be broken and less gas to be released as a result.【解题导语】本文是一篇说明文,主要介绍了避免切洋葱流泪的几个方法以及切开洋葱后流泪的原因。

Unit4WildlifeProtection现在进行时被动语态(学生版)(可编辑修改word版)

Unit4WildlifeProtection现在进行时被动语态(学生版)(可编辑修改word版)

现在进行时的被动语态 The passive voice of presentprogressive一.温故而知新1.用所给单词的适当形式填空1)The task is to (finish) in 10 minutes.2)If you break the rules, you will (punish).3)My bike (leave) at school, so I have to take the bus to school today.4)My computer (repair)already.归纳:这是U2,U3 我们学过的,(时态)的被动语态。

2.复习现在进行时的主动语态1) Tom and his father are hunting deer in the forest now.结构:, b e 应为助动词,它应与主语的人称和数保持一致。

2)用法:①表示现在( 指说话人说话时) 正在发生的事情。

如:They (play) basketball now.②表示现阶段正在进行的动作,说话时动作未必正在进行。

且此时有this week, these days 等时间状语,这时常用现在进行时,如: We (make) model planes these days.③已经确定或安排好的将来活动。

(常用于表示“位移”的动词:come, leave, arrive, fly 等)如:They (leave) for New York tomorrow. 明天他们将要动身前往纽约。

现在进行时的被动语态由+ + 构动词必须与主语在人称和数上保持一致。

常和时间状语:now, at this time, these days 等连用。

注意: 不可遗漏 being, 如果把 being 漏掉,就成为一般现在时的被动语态或系表结构。

Eg: Look, the children are being taken care of by their aunt. (现在的情况)Children are taken good care of at school. (通常的情况)练习:1.those TV sets these days? (check)这些天,那些电视机正在被检测吗?2.We are sorry to know that the endangered animalswell now. (没有被保护好)3.New functions to the cell phones these years.新的功能正在往手机上添加。

必修2 unit 4 Wildlife Protection 被动语态的构成和用法

必修2 unit 4 Wildlife Protection 被动语态的构成和用法

必修2Uint4被动语态的构成和用法[学案]主动语态指主语是谓语动作的使动方。

也就是说谓语的动作源自主语,而施加于宾语。

相反,被动语态中,主语是谓语动作的受动方,如果有宾语的,宾语往往是谓语动作的使动方。

在语法机构上,主动语态和被动语态的区别主要在于,主动语态直接使用动词原形作为谓语,然后再在该动词原形的基础上施加时态和其他语法;而被动语态则使用系词+动词的过去分词作为谓语,各种时态和其他语法也施加在系词上。

举例:主动:The snowslide killed him.被动:He was killed by the snowslide.意义均为:他死于雪崩。

英语中的被动语态使用得比汉语要多,要普遍,许多课本乃至实际应用中都常常涉及到这个问题。

一般说来,当强调动作承受者,不必说出执行者或含糊不清的执行者时,多用被动式。

须注意的是,许多地方与汉语不同。

注意那些汉语中没有"被……"的意思,英语却用被动态。

还要注意,英语的被动态往往由"by"引出,而有用介词"by"的短语往往又不是被动态,而是系表结构。

还有些待殊现象,如…known to man(人类......所知),on foot步行(美国人有时用by foot),in carraige(乘四轮马车)等等。

还有假主动,真被动的十几个常用词的用法,以及so heavy to carry而不用so heavy to be carried等习惯用法。

有关这类情况,做到心中有数对全面掌握被动态,准确无误地解答习题非常关键,被动态必须涉及的是动词的各种时态变化的问题。

英语的时态本来很复杂,怎样记住各自的被动形式呢? 首先要明确"将来进行无被动,现在完成进行同"。

这两种时态无被动形式。

另外,不及物动词带有同源宾语的动词,反身代词的动词和系动词都无被动形式。

即便如此,还有不定式,动名词,分词,以及它们的复合结构)的被动态,再加上情态动词,助动词以及它们的疑问式和否定式从中掺杂,真是令人头痛,眼花缭乱。

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现在进行时的被动语态The passive voice of present progressive 一.温故而知新
1. 用所给单词的适当形式填空
1) The task is to _________ ___________ (finish) in 10 minutes.
2) If you break the rules, you will ________ _____________ (punish).
3) My bike _______ ______ _______ (leave) at school, so I have to take the bus to school today.
4) My computer _______ ________ _________ (repair)already.
归纳:这是U2,U3我们学过的,(时态)的被动语态。

2. 复习现在进行时的主动语态
1) Tom and his father are hunting deer in the forest now.
结构:___________________, b e应为助动词,它应与主语的人称和数保持一致。

2)用法:
①表示现在( 指说话人说话时) 正在发生的事情。

如:They (play) basketball now.
②表示现阶段正在进行的动作,说话时动作未必正在进行。

且此时有this week, these days 等时间状语,这时常用现在进行时,如: We (make) model planes these days.
③已经确定或安排好的将来活动。

(常用于表示“位移”的动词:come, leave, arrive, fly 等)
如:They (leave) for New York tomorrow. 明天他们将要动身前往纽约。

归纳::现在进行时的被动语态由 + + 构成,助动词必须与主语在人称和数上保持一致。

常和时间状语:now, at this time, these days等连用。

注意: 不可遗漏being, 如果把being漏掉,就成为一般现在时的被动语态或系表结构。

Eg: Look, the children are being taken care of by their aunt. (现在的情况)
Children are taken good care of at school. (通常的情况)
练习:
1. those TV sets these days? (check)这些天,那些电
视机正在被检测吗?
2. We are sorry to know that the endangered animals ________ __________ _________ ____________well now. (没有被保护好)
3. New functions to the cell phones these years.新的功能正在往手
机上添加。

4. The report (正在被写) by one of the best students.
5. The report well .(写得好)
三.用法
1. 表示说话时刻正在进行的被动动作
She is being interviewed at this moment.
2. 表示现阶段正在进行的被动动作,但此动作不一定在此时此刻发生。

A new station is being built these days .
3.表示经常性的被动行为,常和always, often, constantly 等词连用。

(带有赞扬,讨厌等感情色彩)
He is always being praised by the teacher.
4. 有些“介词+名词”结构可表示现在进行时的被动意义。

记住下列短语:
on show被展出, in use使用中, under protection正在被保护,
under repair正在维修中, under discussion在讨论中, under research正在被研究,under consideration在考虑中, under development正在开发。

The problem is under discussion at the meeting now.
= The problem is being discussed at the meeting now.
练习:The telephone is in use. = The telephone 四.综合练习:
(一)用所给词的适当形式填空
1.Look,The car (repair)
2. A new film (show) in the theater now.
3. a computer center for the students these days? (build)
4. The problem is (discuss)at the meeting now.
5. Some animals (not protect)well enough these years.
(二)选择
1. Boys and girls ______ equally in India now.
A. are not being treated
B. has not been treated
C. will not be treated
D. are not treated
2. The patient ______ by the nurse at the moment.
A. is being taken care
B. is being taken care of
C. was taken care of
D. take care
3. The world_______ by man himself these years.
A. is being destroyed
B. are being destroyed
C. has been destroyed
D. will be destroyed
4. She is constantly by her mother.
A. blamed
B. being blamed
C. blaming
D. blame (三)翻译
1.我的自行车现在正在被修理。

2.这些天一所新学校正在建设中。

3.看,这任务还没被学生完成。

4.你的房子现在正在被粉刷吗?(paint)。

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