人教版高中英语必修二Unit4LearningaboutLanguage课件

1、高中英语课件（madeofdingshangtuwen）Unit 4Wildlife protectionLearning about Languagebite vt. & vi. 咬; 叮; 刺痛【语境领悟】*What should you do if you are being bitten by mosquitoes?如果你正在被蚊子叮咬, 你应该怎么做?*A poisonous snake bit him in the arm. 一条毒蛇咬了他的胳膊。*Once bitten, twice shy. 一朝被蛇咬, 十年怕井绳。*Barking dogs seldom bite. 爱叫的

2、狗很少咬人。【名师点津】(1)“咬某人的胳膊”表示为bite sb. in the arm, 即“bite+人+介词+the+部位”。(2)bite的过去式为bit; 过去分词为bitten。【即学活用】They _mosquitoes. 他们被蚊子叮得很厉害。The fierce shark _. 这条凶猛的鲨鱼咬住了他的腿。are badly bitten bybit him by the leg_twice, the postman refused to deliver our letters unless we chained our dog. A. Being bittenB. Bi

3、ttenC. Having bitten D. To be bitten【解析】选B。考查非谓语动词。句意: 邮递员因被狗咬了两次, 拒绝给我们送信, 除非我们把狗拴住。the postman和bite之间是被动关系, 过去分词表示完成了的动作。【要点拾遗】1. pick out 挑选; 分辨出【语境领悟】*Please pick out the most helpful piece of advice. 请挑选出最有帮助的一条建议。*He easily picked out his friend from the crowd. 他从人群中很容易地就认出了他的朋友。 【归纳拓展】pick up

4、拾起; 学到; 获得; 收听到; 搭载; 染上(疾病或坏习惯); 加速; 身体康复【即学活用】完成句子。She _from thousands of applicants for the job. 从数千申请人中挑选出她来做那份工作。(2014临汾高一检测)It was so dark in the cinema that I could hardly_my friend. A. turn outB. pick outC. pick upD. bring out【解析】选B。句意: 电影院里那么黑暗以致于我几乎不能辨认出我的朋友。pick out分辨出; turn out结果是; pick u

5、p拾起; bring out使出现, 使显明。was picked out2. After a while she saw some zebra with black and white lines going beneath their stomachs. 过了一会儿她看到了一些斑马, 它们身上有从上一直延伸到腹部的黑白相间的条纹。【句式分析】(1)这是一个含有with复合结构的简单句。句中的“with black and white lines going beneath their stomachs”作后置定语修饰“some zebra”。(2)with的复合结构为“with +宾语(n

6、. /pron. )+宾语补足语”。在句中with复合结构多数充当状语, 表示行为方式、伴随情况、时间、原因或条件。在句中也可以作定语。【名师点津】 图示with复合结构*He often sleeps with the windows open. 他经常开着窗睡觉。*The building looks more beautiful with all the lights on. 所有的灯都开着, 这楼显得更加漂亮。*The teacher went into the classroom with some books in his hand. 老师手里拿着几本书走进教室。*With the

7、 problem settled, he went home. 这个问题解决后他就回家了。*With you standing there, we cant work. 你站在那儿我们无法工作。*I cant go out with lots of homework to do. 因为有很多作业要做, 我不能出去。【即学活用】用with的复合结构完成句子。_, I finished the work in time. 有了汤姆的帮助, 我及时完成了这项工作。The thief was brought in _. 小偷双手被捆着带了进来。The guard stood at the gate _

8、. 卫兵手持枪站在门口。_, weve got more room. 约翰不在, 我们有了更多的地方。With Tom helping mewith his hands tiedwith a gun in his handsWith John away(2012辽宁高考)The old couple often take a walk after supper in the park with their pet dog_them. A. to followB. followingC. followedD. follows【解析】选B。考查with的复合结构。句意: 这对老夫妇经常在晚饭后带着

9、他们的宠物狗在公园里散步。在with的复合结构中, 宾语their pet dog与宾语补足语之间为主动关系, 故用following作宾语补足语。现在进行时的被动语态1. 现在进行时的被动语态的基本结构【语境领悟】*A new library is being built now. 一座新图书馆正在被修建。*Some animals are not being protected well enough. 有些动物没有受到足够好的保护。*Is the bridge being repaired now?现在那座桥在修吗?*What is being done on the new medic

10、ine?正在这种新药物上做什么?*How many bridges are being built in the town?在这个镇里在建的桥有多少?【知识归纳】肯定结构be(am/is/are)being done否定结构be(am/is/are)+ not + being done一般疑问结构be(am/is/are)+主语+ being done特殊疑问结构特殊疑问词+ be(am/is/are)+主语+ being done【思维延伸】主动语态变被动语态的原则“三变”: 原句主语变为by短语, 宾语变为主语, 谓语由主动变为被动; “三不变”: 原句意思不变, 原句时态不变, 原句主谓

11、宾以外成分不变。*They are building nine parks. Nine parks are being built. How many parks are being built?2. 现在进行时的被动语态的基本用法【语境领悟】*She is being examined by the doctor now. 现在她正在被医生检查。*The life of the panda is being studied at present. 现在正在研究大熊猫的生活环境。*Some rock music is being played by them next. 下面将由他们演奏一些摇

12、滚音乐。*Tom is always being praised by the teacher. 汤姆总是受到老师的表扬。【知识归纳】(1)表示正在进行或发生的被动动作, 常与now, look等词连用。(2)表示现阶段或目前这段时间正在进行的被动动作, 但这一被动动作在此时不一定正在发生。(3)表示按计划、安排主语将要承受某个动作。(4)表示一种经常性或习惯性的被动行为, 常与always, forever, continually, constantly等词连用, 往往带有赞扬、责备、厌烦及埋怨等感情色彩。【深化点拨】使用现在进行时的被动语态应注意的问题: (1)在现在进行时的被动语态中b

13、e(am/is/are)为第一助动词, being为第二助动词, 缺一不可, 且位置不可互换。*My computer is being repaired now. 我的电脑现在正在被修理。(强调正在被进行)(2)像take care of, look after, talk about, think of等动词与介词构成的短语用于现在进行时的被动语态时, 其中的介词不可省略。*Something is being talked about among those people. 在那些人中正谈论着某件事情。(3)“be(am/is/are)+ under/in+n. ”有时可相当于现在进行时

14、的被动语态。*The school is still under construction now. =The school is being built now. 学校现在正在建设中。*The new law is in use. =The new law is being used. 这项新法律正被使用。(4)有些动词进行时的主动形式就可以表示被动的意思, 常见的这些动词有: print, cook, fry, bake, burn, hang等。*The house is burning. 房子着火了。*The meat is cooking. 正在煮肉。(5)有些表“状态, 心理活动,

15、 情感”等的动词, 常用一般现在时的被动语态表示“正在进行”。*You are wanted on the phone. 有人打电话找你。*MP3 is becoming more and more popular. In other words, it is loved by more and more people. MP3越来越受欢迎, 换句话说, 它越来越受人们的喜爱。(2012四川高考)They are living with their parents for the moment because their own house_. A. is being rebuiltB. ha

16、s been rebuiltC. is rebuilt D. has rebuilt解题分析: 【活用】1. (2013北京高考)So what is the procedure?All the applicants_before a final decision is made by the authority. A. interviewB. are interviewingC. are interviewed D. are being interviewed【解析】选C。考查时态和语态。句意: 那么程序是什么呢?所有的申请人在官方做出最终决定之前都要被面试。由上下语境可知说话人在陈述一项规

17、定, 故用一般现在时, 且主语与interview之间是被动关系, 故选C。2. (2012重庆高考)Food supplies in the flood-stricken area_. We must act immediately before theres none left. A. have run out B. are running outC. have been run out D. are being run out【解析】选B。考查时态和语态。句意: 供应洪灾地区的食物快用完了。我们必须在用完之前立刻采取行动。run out是不及物动词词组, 不能用于被动语态, 排除C、D;

18、 由第二句中的before theres none left可知, run out是将要发生的动作, 应用将来时。have run out是现在完成时, 表示动作的完成; are running out是进行时, 可以表将来, 故选B。3. (2014嘉兴高一检测)Hi, Tony, can I use your computer for a while this afternoon?Sorry. _. A. Its repaired B. It has been repairedC. Its being repaired D. It had been repaired【解析】选C。考查动词的

19、时态和语态。句意: 嗨, Tony, 我今天下午能用会儿你的电脑吗?很抱歉。它正在被修理。结合句意可知, 为进行时态的被动语态, 故C项正确。【补偿训练】1. (2010上海高考)The church tower which_will be open to tourists soon. The work is almost finished. A. has restored B. has been restoredC. is restoring D. is being restored【解析】选D。考查动词的时态和语态。句意: 那个正在修复的教堂塔很快就会对游客开放。修复工作差不多完成了。根据

20、句意可知修复正在进行中, 故用现在进行时的被动语态。A, C都表示主动, B是现在完成时的被动语态, 故D项正确。2. (2010天津高考)Traditional folk arts of Tianjin like paper cutting _ at the culture show of the 2010 Shanghai World Expo. A. are exhibiting B. is exhibitingC. are being exhibited D. is being exhibited【解析】选C。考查现在进行时态的被动语态。句意: 像剪纸一样的天津民间传统艺术品正在201

21、0年上海世博会的文化展览中展出。根据句意可知“正在被展览”, 所以用现在进行时态的被动语态形式。3. (2010北京高考)In the spoken English of some areas in the US, the “r” sounds at the end of the words_. A. are dropped B. dropC. are being dropped D. have dropped【解析】选A。考查动词的时态和语态。句意: 在美国一些地区的口语里, 单词末尾的“r”音被省略。the “r” sounds与drop为被动关系, 且本句说的是一种现象, 用一般现在时,

22、 故A项正确。. 把下列句子变为被动语态1. They are painting our classroom. Our classroom _by them. 2. Many people are always asking him silly questions. He _silly questions by many people. 3. The old man is looking after the little dog. The little dog _by the old man. is being paintedis always being askedis being looked after4. Mary is writing a letter to her brother. A letter _by Mary to her brother. 5. They are interviewing him now. He _now. 6. They are planting trees on both sides of th