高二新人教版英语选修8课件 UNIT 5 MEETING YOUR ANCESTORS 第4课时 USING LANGUAGE.ppt

1、Unit 5 Meeting your ancestors人教版英语Unit 5 Meeting your ancestors人教版英语Unit 5 Meeting your ancestors人教版英语.词汇：根据提示写出相应单词。1 _(n.)意 义；意 思；重 要 性；重 要 意 义_(adj.)重大的；重要的2_(adv.)以方式；不知怎么地3_(vt.)吐出(唾液、食物等)；(vi.)吐痰4_(vt.)删；删除5_(n.)(刮、抓、划的)痕迹；搔；挠；(vt.)搔；抓；擦伤；刮坏Unit 5 Meeting your ancestors人教版英语6_(n.)幼儿园7_(adj.)放射

2、性的；有辐射能的8 _(n.)分 割；划 分；分 配；分 界 线_(vt.)分开；分成；分配9_(vi.&vt.)鼓掌欢迎10_(vi.&vt.)加速；促进11_(vt.)逮捕；吸引；(n.)逮捕；拘留12_(adj.)有技巧的；熟练的_(n.)技能；熟练_(adv.)Unit 5 Meeting your ancestors人教版英语答案：1.significance;significant2.somehow3.spit4.delete5.scratch6.kindergarten7.radioactive8.division;divide9.applaud10.accelerate11.a

3、rrest12.skilful/skillful；skill；skilfully/skillfullyUnit 5 Meeting your ancestors人教版英语.短语：1due_ 由于；因为2on_of 代表3refer_查阅；参考；谈到4take_to do sth.轮流做某事5fed up_ 受够了；饱受；厌烦6be worried_担心；烦恼7_only 但愿；要是就好了8look_ 向前看；为将来打算9now_then 时而；不时地10date_ 追溯到Unit 5 Meeting your ancestors人教版英语答案：1.to2.behalf3.to4.turns5.

4、with6.about7.if8.ahead9.and10.back/fromUnit 5 Meeting your ancestors人教版英语Unit 5 Meeting your ancestors人教版英语1applaud(v.)1)鼓掌Everyone applauded when the play ended.演出结束时，大家都热烈鼓掌。The crowd applauded(him/the performance)for five minutes.群众(为他/演出)鼓掌五分钟。2)sb./sth.(for sth.)称赞；赞许；赞赏We applauded him for his

5、 bravery.我们称赞他的勇敢。We all applaud you for your decision.我们一致赞成你的决定。Unit 5 Meeting your ancestors人教版英语【知识拓展】1)cheer 欢呼；喝彩The crowd cheered as the teams entered the field.球队入场时观众们为之欢呼。2)clap 鼓掌、拍手(表示赞许或欣赏)The audience clapped(her/her speech)enthusiastically.听众热情地(为她/为她的讲话)鼓起掌来。Unit 5 Meeting your ances

6、tors人教版英语【知识运用】(1)Having visited two schools in China recently,I cant help but_the ideal of education upheld by the headmasters.AapplaudBto applaudCcheer Dto cheerUnit 5 Meeting your ancestors人教版英语答案：A 本题题意：最近在中国参观了两所学校，校长办校的理念让人暗自喝彩。applaud表示“称赞；赞许；赞赏”；此外，sb can not help but do sth.|sb.can not help

7、(doing)sth.表示“某人忍不住(或无法抑制)做某事”。Unit 5 Meeting your ancestors人教版英语(2)She_her hands in delight.Aapplauded BclappedCcheered Dhit答案：B本题题意：她高兴地拍起手来。clap ones hands表示“拍手；击掌”。Unit 5 Meeting your ancestors人教版英语2accelerate(v.)1)(使)加速，加快The bad weather accelerated our departure.糟糕的天气促使我们早日离开。Exposure to the s

8、un can accelerate the aging process.暴露在日光下会加速老化过程。Unit 5 Meeting your ancestors人教版英语2)(交通工具或人)加速；加快The car accelerated as it overtook me.那辆汽车一加速就超越了我。The leader is losing ground as the rest of the runners accelerate.领先者在其余赛跑者加速时就逐渐失去了优势。Unit 5 Meeting your ancestors人教版英语【知识拓展】acceleration U&sing.(in

9、 sth.)加速；加快You know,Gail is very good at acceleration after 20 meters.你知道吧，盖尔非常擅长20米后加速跑。The acceleration is positive if the speed is increased,negative if speed is decreased.速度增加的加速度为正加速度，速度减少的加速度为负加速度。Unit 5 Meeting your ancestors人教版英语【词语辨析】accelerate,quicken,hurry,rush,speed这些动词均含“加快，使加快”之意。1)acc

10、elerate着重指频率或速率运转加快。The driver stepped on the gas and accelerated the car.司机加大了油门，让汽车加速行驶。2)quicken普通用词，指增加速度、速率。We quickened our steps.我们加快了脚步。Unit 5 Meeting your ancestors人教版英语3)hurry指赶紧或匆忙地做某事或催促别人做某事，隐含草率或混乱的意味。A good meal should never be hurried.美食不应狼吞虎咽。4)rush含义与hurry相近，但显得更仓促更慌乱。Ambulances ru

11、shed the injured to hospital.救护车把受伤的人火速送到了医院。5)speed侧重实际的快速行动。He sped down the street.他沿那条街快步走去。Unit 5 Meeting your ancestors人教版英语【知识运用】(1)His interest was_by an article he had read.Aaccelerated BquickenedChurried Dsped答案：B本题题意：他读了一篇文章便兴趣大增了。quicken表示“(使某事物)变得更活跃，更加活泼”。Unit 5 Meeting your ancestors人

12、教版英语(2)This work needs care;it mustnt be_.Aaccelerated BquickenedChurried Dsped答案：C本题题意：这活儿需要细心，催不得。hurry sth.(along/up)表示“使某事加快；催促某事物”。Unit 5 Meeting your ancestors人教版英语(3)Water went_through the lock gates.Aaccelerating BquickeningCrushing Dadapting答案：C本题题意：水流经水闸时十分湍急。rush表示“(使某人或某物)急速去或来”。Unit 5 M

13、eeting your ancestors人教版英语(4)This medicine will help_her recovery.Arush BquickenChurry Dspeed答案：D本题题意：这药能加快她康复。speed表示“使(某事物)快速移动或行进”。(5)He_her car and passed the bus in front.Aaccelerated BexploredCrushed Dhurried答案：A本题题意：他加快车速超过了前面的公共汽车。accelerate 表示“(使)加速，加快”。Unit 5 Meeting your ancestors人教版英语3ar

14、resta)v.1)吸引(注意)The bright colors of the flowers arrested Susans attention/eye.花的艳丽色彩引起苏珊的注意。2)sb.(for sth.)逮捕；拘留The policeman arrested the thief.警察逮捕了那个小偷。Unit 5 Meeting your ancestors人教版英语3)阻止；中止Nothing can arrest his studying English.什么也不能阻止他学习英语。b)n.1)C&U逮捕；拘留The police made an arrest last night

15、.昨晚警察逮捕了一个人。2)停止；中止The patient died after suffering a cardiac arrest.病人患心搏停止而死亡(心脏停止跳动)。Unit 5 Meeting your ancestors人教版英语【知识拓展】1)be/place sb/put sb under被逮捕；被拘留；成为囚犯I am placing you under arrest for attempted burglary.我按企图盗窃罪逮捕你。2)arrest sb.for.因而逮捕某人You could get arrested for doing that.你干那种事可能要遭逮

16、捕。Unit 5 Meeting your ancestors人教版英语【词语辨析】arrest,capture,catch,seize,trap这些动词均有“抓住，捕捉”之意。1)arrest指根据法律或命令进行逮捕并予以监禁或拘留。After the match three youths were arrested.比赛过后有三个青年被捕。Unit 5 Meeting your ancestors人教版英语2)capture指通过武力或计谋等，战胜抵抗而捉住敌人或动物。The police have not captured the murderer yet.警方还没有捕获那个凶手。3)c

17、atch普通用词，指捉住跑动或隐藏中的人或动物，一般指活捉。The policeman caught the thief.警察逮住了小偷。4)seize侧重指以突然、有力地动作迅速抓住或捉住。He seized her hand and shook it heartily.他拉住她的手高兴地握着。Unit 5 Meeting your ancestors人教版英语5)trap多指诱捕。I was trapped into telling the police all I knew.我中计了，把所知道的一切全都告诉了警方。Unit 5 Meeting your ancestors人教版英语【知识

18、运用】(1)I_a boy stealing apples from the garden.Aarrested BcapturedCcaught Dtrapped答案：C本题题意：我撞见一个男孩儿正偷园里的苹果。catch sb doing sth表示“发现或发觉某人正做某事”。Unit 5 Meeting your ancestors人教版英语(2)The title of the essay_my attention.Aarrested BseizedCstruck Dtrapped答案：A本题题意：那篇文章的题目吸引了我的注意力。arrest表示“吸引(注意)”。Unit 5 Meeti

19、ng your ancestors人教版英语(3)The animals are_in nets and sold to local zoos.Aarrested BcapturedCcaught Dtrapped答案：B本题题意：那些动物用网捕获后被卖到当地的动物园。capture表示“俘虏；俘获；捕获”。Unit 5 Meeting your ancestors人教版英语(4)He_the bag and ran off with it.Aarrested BseizedCcaught Dtrapped答案：B本题题意：他把那个包抢跑了。seize表示“抓住，捉住(某物);攫取”。Unit

20、 5 Meeting your ancestors人教版英语(5)The lift broke down and we were_inside.Aarrested BseizedCcaught Dtrapped答案：D本题题意：电梯出故障了，我们被困在里面出不来。trap表示“使(某人)陷入困境”。Unit 5 Meeting your ancestors人教版英语4relief(n.)1)U&sing.(不快过后的)宽慰，轻松；解脱Its a great relief to find you here.见到你在这儿也就放心了。“What a relief！”she said,as she t

21、ook her tight shoes off.她把夹脚的鞋脱下时说：“可松快了！”Unit 5 Meeting your ancestors人教版英语2)U(from/of sth.)(焦虑、痛苦等)减轻，消除，缓和The drug gives some relief from pain.这种药可以减轻一些痛苦。The doctors were working for the relief of her suffering.医生正在为解除他的病痛而工作。Unit 5 Meeting your ancestors人教版英语【知识拓展】to ones relief令某人庆幸的是To my gre

22、at relief/Much to my relief,I wasnt late.我最庆幸的是没有迟到。To our great relief,our jet plane came to land in safety though one of its engines had broken down.使我们大大松了一口气的是，尽管我们乘坐的喷气式飞机的一个引擎出了故障，但它还是安全着陆了。Unit 5 Meeting your ancestors人教版英语【知识运用】(1)(2010山东33)Those who suffer from headache will find they get_f

23、rom this medicine.Arelief Bsafety Cdefense Dshelter答案：A本题题意：那些遭受头痛折磨的人将会发现这种药物能使头痛症状得到缓解。relief表示“(焦虑，痛苦等的)减轻，消除，缓和”。Unit 5 Meeting your ancestors人教版英语(2)Hearing the news,he breathed a sigh of_.Arelief BbriefCbelief Ddelivery答案：A本题题意：一听到这个消息，他如释重负地松了口气。relief表示“(不快过后的)宽慰，轻松；解脱”。Unit 5 Meeting your a

24、ncestors人教版英语(3)He arose and made a_speech.Arelief BbriefCbelief Ddelivery答案：B本题题意：他站起身来作了一个简短的演讲。brief表示“时间短暂的；简短的”。Unit 5 Meeting your ancestors人教版英语Unit 5 Meeting your ancestors人教版英语1look ahead1)(to sth.)展望未来；为将来着想Have you looked ahead to what youll be doing in five years time?你是否想过五年后你要做些什么？We m

25、ust look ahead before we make a decision.我们作出决定之前必须想得远一点。Unit 5 Meeting your ancestors人教版英语2)向前看Look ahead in the distance,and you can see the lights of the village.你往远处看，便可以看见村庄里的灯光。Look ahead.What can you see on the top of the hill?向前看。你看见山顶上有什么东西吗？Unit 5 Meeting your ancestors人教版英语【知识拓展】1)look af

26、ter(1)(to take care of)照顾Whos going to look after the children while youre away?你不在时谁来照料小孩？(2)(to be responsible for)对负责Im looking after his affairs while hes in hospital.他住院时由我处理他的事物。Unit 5 Meeting your ancestors人教版英语2)look at(1)看；瞧She looked at me and smiled.她看了看我，笑了。(2)(仔细)查看，检查I havent had time

27、to look at/read the papers yet.我还没来得及看这些论文。(3)(用某种方式)看待；考虑Looked at from that point of view,his decision is easier to understand.从那个角度来看，更容易理解他的决定。Unit 5 Meeting your ancestors人教版英语3)look for(1)寻找；搜索Where have you been?Weve been looking for you?你上哪儿去了？我们一直在找你。(2)期望；期待；盼望Look for a change of weather

28、in March.希望三月天气会变。4)look on/upon.as.把看作；把视为Shes looked on as the leading authority on the subject.她被视为这门学科的主要权威。Unit 5 Meeting your ancestors人教版英语5)look out(表示警告，尤指有危险)小心；当心；留神If you dont look out,you may fall on the ice.如果不小心的话，你会在冰上摔倒的。6)look out for(1)当心；提防；留心防备You should look out for pickpockets

29、.你应当提防扒手。(2)留心寻觅Ill look out for you at the conference.我会在开会时来找你。Unit 5 Meeting your ancestors人教版英语7)look forward to(高兴地)盼望；期待Im looking forward to the weekend.我盼望着周末呢。8)be just looking(在商店里表示不想购买某物)只是看一看Can I help you?Im just looking,thank you.“请问你要买什么？”“谢谢，我只是看看”。Unit 5 Meeting your ancestors人教版英语

30、【知识运用】(1)(2004湖南22)_for the glass!Its OK.Im wearing shoes.ALook out BWalk outCGo out DSet out 答案：A本题题意：“小心玻璃！”“没关系，我穿着鞋子”。look out(表示警告，尤指有危险)“当心，小心”；例如：Look out！Theres a car coming！当心！有车来了！Unit 5 Meeting your ancestors人教版英语(2)_this book and tell me what you think of it.ALook through BLook onCLook i

31、nto DLook up 答案：A本题题意：看看这本书，告诉我你的看法。look through sth表示“快速察看；浏览”。Unit 5 Meeting your ancestors人教版英语(3)I look_and before me rise the fantastic towers of New York,a city that seems to have stepped from the pages of a fairy story.Aup BthroughCround Dahead答案：D本题题意：我展望前头，纽约的高楼大厦在我前面升起，似乎是从童话故事的篇章中出现的一座城市。

32、look ahead 表示“向前看”。Unit 5 Meeting your ancestors人教版英语2date back(to.)|date from.追溯到；始于；自至今Its a tradition that dates back at least a thousand years.这一传统至少可以追溯到一千年前。Her problems date back to her childhood.她的这些问题小时候就有了。The town dates back to Roman times.这座城镇建于古罗马时代。The strike was the latest stage in a

33、dispute which dated from 1990.这次罢工是自1990年以来纠纷的最新阶段。Unit 5 Meeting your ancestors人教版英语【知识运用】(1)(2010沈阳市高三二模)He visited the Effel Tower,which_to 1889,during his stay in France last summer.Adated backBdates backChas dated backDhas been dated back Unit 5 Meeting your ancestors人教版英语答案：B本题题意：去年夏天在法国逗留期间，他

34、参观了埃菲尔铁塔。这座塔的历史可以追溯到1889年。date back to表示“追溯到；始于；自至今”，通常用于一般时态，排除选项C，D。此外，陈述一个现在存在的客观事实，采用一般现在时。Unit 5 Meeting your ancestors人教版英语(2)Our present ideas about the motion of Bodies_Galileo and Newton.Aare dated back to Bdate back toCbring back to Dare brought back toUnit 5 Meeting your ancestors人教版英语答案：

35、B本题题意：我们目前关于物体运动的观念来自于伽利略和牛顿。date back(to.)|date from表示“追溯到；始于；自至今”，为不及物性短语动词，不能用于被动语态和进行时态。Unit 5 Meeting your ancestors人教版英语(3)It is a beautiful vase_about 1715.Ato date from Bdated fromCdating from Ddates from答案：C本题题意：这个漂亮的花瓶大约在1715 年就有了。本题考查现在分词短语“dating from about 1715”在句中担任后置定语，相当于定语从句which/th

36、at dates from about 1715.Unit 5 Meeting your ancestors人教版英语Unit 5 Meeting your ancestors人教版英语If only it could be just like last year!要是能像去年那样就好了！【知识剖析】if only常常用来表达强烈的愿望或遗憾，因此，主要用在虚拟语气中，用以表达强烈的愿望或非真实条件。常被译为“但愿”、“要是该多好啊”等。其用法归纳如下：Unit 5 Meeting your ancestors人教版英语1)用以表示对现时或未来的愿望：If only I were rich.但

37、愿我很富。If only I could swim.要是我会游泳该多好。If only I knew her name.我要是知道她的名字就好了。If only they would tell me what theyve decided.但愿他们能把决定告诉我。Unit 5 Meeting your ancestors人教版英语2)用以表示与过去事实相反的愿望：If only hed remembered to buy some fruit.他当时要是记得买些水果来该多好。If only I had gone by taxi.假若我是乘计程车去的就好了。If only she could h

38、ave lived a little longer.要是她能活得再长一些，那该多好啊！Unit 5 Meeting your ancestors人教版英语【知识拓展】only if的用法：only if 引导条件状语从句，表示“只有(才)；只有在的时候；唯一的条件是”，与if引起的一般条件句相比，它有一种增强主句语势的作用。例如：Only if the case is urgent should you call out the doctor in the middle of the night.只有患者情况紧急时，你才可以在半夜叫医生看病。I told him he would succee

39、d only if he tried hard.我告诉他，只有努力才能成功。Unit 5 Meeting your ancestors人教版英语Only if I get a job will I have enough money to go to school.我只有找到了工作才能有足够的钱上学。Only if the red light comes on is there any danger to employees.只要红灯一亮，就表示有危及职工的险情。Unit 5 Meeting your ancestors人教版英语【知识运用】(1)(2008江苏32)_you eat the

40、correct foods _be able to keep fit and stay healthy.AOnly if.will you BOnly if.you willCUnless.will you DUnless.you will答案：A本题题意：只要你饮食恰当，你就能持久地保持身体健康。only if表示“只要；只有”，用于句首，后接从句，主句部分采用部分倒装结构。Unit 5 Meeting your ancestors人教版英语(2)(2000上 海 36)If only he_quietly as the doctor instructed,he would not suff

41、er so much now.Alies Blay Chad lain Dshould lie答案：C本题题意：假如他听从医生的叮嘱，躺着静养就好了，他现在就不会吃那么多苦头了。用以表示与过去事实相反的愿望，if only所引导的句子采用过去完成时。Unit 5 Meeting your ancestors人教版英语(3)(2003上海春40)Look at the trouble I am in!If only I _ your advice.AfollowedBwould followChad followed Dshould follow答案：C本题题意：看我有多倒霉！要是我听从你的建议

42、该有多好。用以表示与过去事实相反的愿望，if only所引导的句子采用过去完成时。Unit 5 Meeting your ancestors人教版英语(4)_a teacher has given permission is a student allowed to enter this room.AEven if BIf only COnly if DOnce答案：C本题题意：只有得到教师的允许，学生才可以进这间屋。only if 表示“只有”，引导条件状语从句，主句的谓语部分采用了部分倒装语序。Unit 5 Meeting your ancestors人教版英语(5)If only they _me what theyve decided.AtoldBwill tellCwould tell Dtell答案：C本题题意：但愿他们能把决定告诉我。if only表示“只要；要是就好了，但愿”，用以表示对现在或未来的愿望，谓语部分采用“would/should/might/could不带to的不定式”。如果用以表示与过去事实相反的愿望，谓语动词部分则采用过去完成时。例如：If only hed remembered to buy some fruit.他当时要是记得买些水果来该多好。Unit 5 Meeting your ancestors人教版英语