【英语】2019届一轮复习人教版必修4Unit2Workingtheland单元学案设计（25页）

【英语】2019届一轮复习人教版必修4Unit2Workingtheland单元学案设计（25页）

‎2019届一轮复习人教版必修4Unit 2Working the land单元学案设计 ‎【课前预习】‎ Ⅰ.情景默写 ‎1.The resistance to vaccine has continued for decades(十年)，and it is driven by a real but very small risk.(2017·北京卷)‎ ‎2.These animals consumed large amounts of vegetation(植被)，which reduced(减少)plant diversity in the park.(2017·全国卷Ⅲ)‎ ‎3.Famous experts are often invited to CCTV to comment(评论)on international situations.‎ ‎4.How I regret(后悔) making the stupid mistake and wasting so much of our time!‎ ‎5.Don’t walk around without a sunhat when you travel in Sanya，or you will get sunburnt(晒黑的).‎ ‎6.These birds are rare and therefore(因此) protected by law.‎ ‎7.Information about nutrition(营养) is now provided on the back of most food products.‎ ‎8.Social status is largely determined by the occupation(职业) of the main ‎ breadwinner.‎ ‎9.It is important for you to skim(略读) through the text.‎ ‎10.She is struggling(奋斗) to support a family on a very low income.‎ ‎11.The condition prevents the blood from circulating(循环) freely.‎ ‎12.The focus(焦点) of public health is prevention and protection rather than treatment.‎ ‎13.He is thinking of expanding(扩展) his business.‎ ‎14.I always underline(画底线标出) the words I don’t understand so that I can look them up in the dictionary later.‎ ‎15.Bacteria(细菌) are very small living things，some of which cause illness or disease.‎ ‎16.Thanks__to(幸亏)these new treatments，people with high blood pressure can live a long and active life.‎ ‎17.To be mentally healthy，you need to build__up(逐渐增强)good relationships with each other.‎ ‎18.This kind of discussion will lead__to(导致)still greater differences between the two parties.‎ ‎19.We should learn to keep ourselves free__from/of(使……免受)love of money and be content with what we have.‎ ‎20.We asked all our customers if they were__satisfied__with(对……感到满意)the service they had received.‎ ‎21.We cannot really learn anything until we rid ourselves of(使……摆脱)being too proud.‎ ‎22.If you are going to follow someone，focus__on(集中注意力于)their talent，instead of their bad character or unacceptable behaviors.‎ Ⅱ.词性转换 ‎1.Women have gained the freedom(free) to decide whether to marry or not.‎ ‎2.Owing to the great hunger，a great number of hungry children died.(hunger)‎ ‎3.Madam Curie discovered Radium，and many scientists were surprised at her discovery at that time.(discover)‎ ‎4.Our school offers good equipment and you will be well equipped with knowledge and skills for your future job.(equip)‎ ‎5.The girl was confused by his confusing words and she was at a loss what to do next.(confuse)‎ ‎1.句型公式：so代替前面句子 这项产品是否赚钱，如果是，赚多少？‎ Do we make money on this product? If__so，how much?‎ ‎2.句型公式：make＋it＋形容词＋不定式 他的梦想是奥运会将使得各个国家和人民和平共处。‎ His dream was that the Olympic Games would make__it__possible__for__countries and__people__to__live peacefully side by side.‎ ‎3.句型公式：倍数表达法 这房间是那房间的两倍大。‎ The room is__twice__as__big__as that one.‎ ‎4.句型公式：would rather do...‎ 有些人宁愿骑自行车，因为骑自行车没有乘坐公共汽车的麻烦。‎ Some people would__rather__ride__bikes as bike riding has none of the troubles of taking buses.‎ ‎5.句型公式：现在分词短语作结果状语 另一方面，我将帮着建立英语角，提供给我们学生一个练习英语口语的平台。(天津卷·满分作文)‎ On the other hand，I will help set up the English corner，‎ providing__us__students a__platform__to__practice__our__oral__English.‎ 第一板块 重点单词 ‎1.struggle vt.& vi.& n.斗争；拼搏；努力；挣扎 高考必刷题练透 单句语法填空/单句改错/微写作 ‎①Having__struggled(struggle) for months to find a job，Dina finally succeeded.‎ ‎②We have to struggle against/with all kinds of difficulties from home and abroad.‎ ‎③Despite his terrible injuries，he wouldn’t give up the struggle for life.‎ ‎④Bravely，Mary struggled to her foot，and fought against the wind and rain.foot→feet ‎⑤He was seriously injured and made his way in the forest with struggle.struggle前加a ‎⑥海伦·凯勒19个月时变得又聋又瞎，但她从不放弃并努力过积极的生活。‎ Helen Keller became deaf and blind when she was 19 months old，but she__never gave__up__and__struggled__to__lead__an__active__life.‎ 状元笔记全记牢 ‎(1)struggle for　为……而斗争 struggle with/against sb/sth 与……作斗争 struggle to do sth 努力做某事 struggle to one’s feet 挣扎着站起来 ‎(2)with a struggle 费劲地 ‎【联想】‎ ‎①rise to one’s feet 起立 ‎②jump/leap to one’s feet 跳起来 ‎③set foot in/on 进入，踏上 ‎2.equip vt.& vi.装备；配备 高考必刷题练透 单句语法填空/单句改错/微写作 ‎①It is often said that human beings are naturally equipped ‎ to__speak(speak).‎ ‎②Having equipped himself with necessary knowledge and skills，the young man went to the job market with much confidence.‎ ‎③Our laboratory is distinguished for its equipments from America.‎ equipments→equipment ‎④为了使脚干燥舒服，这种新鞋配备了微型风扇。‎ To__keep__the__feet__dry__and__comfortable，this__new__kind__of shoes__is__equipped__with__a__micro－fan.(湖南卷)‎ 状元笔记全记牢 ‎(1) equip sb/sth with sth用……装备某物；让某人具备(知识、技能等)‎ equip sb/sth to do sth 使……有条件做某事 ‎(2)be equipped with 装备/具备……‎ well poorly equipped 设备精良的/差的 ‎(3)equipment n. 设备 a piece of equipment 一件设备 ‎【点津】‎ ‎(1)equip 的过去式和过去分词均为equipped；‎ ‎(2)equipment 为不可数名词。‎ ‎3.regret v.可惜；后悔；遗憾；惋惜 n.遗憾；抱歉 高考必刷题练透 单句语法填空/单句改错/微写作 ‎①I regret to__tell(tell) you that I can’t travel to Beijing together with you.‎ ‎②To my regret，we have no much time left to discuss the problem.‎ ‎③Jerry did not regret give the comment but felt that he could have expressed it differently.give→giving ‎④只要我们尽力而为，就没有必要为失败感到遗憾。(湖南卷)‎ As__long__as__we__try__our__best，there’s__no__need__feeling__regret for__these__failures.‎ 状元笔记全记牢 ‎ (1)regret后悔做了某事 regret to say/tell/inform...that...　遗憾地说/告知……‎ regret that... 遗憾……‎ ‎(2)with great/deep regret 很遗憾 feel regret for 为……感到遗憾 to one’s regret 让某人感到遗憾的是 ‎4.focus vt.集中注意力；聚焦 n.焦点；关注点 高考必刷题练透 单句语法填空/微写作 ‎①Most of us are more focused on our tasks in the morning than we are later in the day.(2016·全国卷Ⅱ)‎ ‎②With the attention focused (focus) on the task，they had no time to take part in the party.‎ ‎③这表明当今社会的一个普遍现象：孩子是家庭的中心，承载着(shoulder)父母的希望。(福建卷)‎ It shows a common phenomenon nowadays that children__are__the__focus__of families，shouldering__the__hope__of__their__parents.‎ ‎④如果发现那些材料有趣，我们的注意力会长时间集中在它们身上。(四川卷)‎ If we find those materials interesting，‎ we’ll__focus__our__attention__on__them for long.‎ 状元笔记全记牢 ‎(1)focus on　集中于……‎ focus one’s attention/eyes/energy on 集中注意力/目光/精力于……‎ ‎(2)the focus of attention/concern 注意力/关注的焦点 ‎【联想】‎ 表示“集中注意力/精力于……”的短语还有：‎ ‎①pay attention to sth　②fix one’s attention on sth ‎③concentrate one’s attention on sth 第二板块 核心短语 ‎1.build up逐渐增强；增强……的体质；建立；创办；开发；聚集；积累 高考必刷题练透 ‎(1)写出下列句中build up的含义 ‎①As we all know，bears build up fat stores throughout the summer.积累 ‎②His confidence is building up as he has gained more and more experience in teaching.逐渐增强 ‎③Taking exercise helps us build up our body and keep a clear mind.增强……的体质 ‎④It’s said that she’s built up a very successful business.建立；创办 ‎(2)选用up短语填空/微写作 ‎⑤It didn’t take me long to pick__up the basic knowledge of the language.‎ ‎⑥Many retired people take__up gardening as a hobby.‎ ‎⑦它们对于增强我们的体质、丰富我们的学校生活有很大的帮助。(江西卷)‎ They_are_really_helpful_to_build_up_our_body_and_enrich_our_school_life.‎ 状元笔记全记牢 pick up　捡起；(无意中)学会；接收；搭载 take up 拿起；开始；从事 hang up 挂起来；挂断电话 dress up 穿上盛装；打扮 make up 虚构；弥补；组成 show up 出现；露面 bring up 抚养；教养 break up 分裂；打碎 ‎2.lead to导致；造成(后果)；通向……‎ 高考必刷题练透 单句语法填空/单句改错/微写作 ‎①Questioning can lead to searching (search) for an answer.(2015·湖北卷)‎ ‎②I will divide the students into groups and lead them to__practice (practice) speaking English.‎ ‎③He decided to lead new life after the unusual experience.lead后加a ‎④With the boy lead the way，we had no difficulty in finding the destination.lead→leading ‎⑤众所周知，条条大路通罗马。‎ As__we__all__know，all__roads__lead__to__Rome.‎ 状元笔记全记牢 ‎ (1)lead to中的to为介词，后接名词、代词或动名词。‎ ‎(2)lead sb to do sth使某人做某事 lead/live a...life过……样的生活 lead the way引路；带路 lead sb to/into...带领某人进入……‎ ‎【联想】‎ 表示“导致，造成”的其他短语还有：result in，bring about等。‎ 第三板块 经典句式 ‎1.If__so，what did you do to grow them？如果是这样的话，你怎样来种植这些植物？‎ 高考必刷题练透 单句改错/完成句子/微写作 ‎①Will you be free this Sunday？If not，let’s go camping. not→so ‎②I think there’s a train at midday. If so，you’ll have to wait till 12：30.so→not ‎③If__possible(如果有可能)，try and go to bed and wake up at the same time every day.‎ ‎④—Have you been to the Great Wall?‎ ‎—Perhaps not in my memory.If__ever(如果有过)，it might have been during my early childhood.‎ ‎⑤你赞同我推迟我们去云南的旅行吗？如果赞同，请尽快写信告诉我。‎ ‎(北京卷)‎ Do you agree that I will put our visit to Yunnan off? If__so，write__back__to__tell me__about__it__as__soon__as__possible.‎ 状元笔记全记牢 ‎(1)if so意为“如果这样的话”，是if引导的条件状语从句的省略形式，表示肯定意义；如果表示否定意义，则用if not。‎ ‎(2)含if的省略结构还有：‎ if ever　如果有过/发生过的话 if any 如果有的话 if possible 如果有可能 if necessary 如果有必要 ‎2.He would much rather keep time for his hobbies.他宁愿把时间花在自己的爱好上。‎ 高考必刷题练透 单句语法填空/单句改错 ‎①I would rather you had__finished (finish) your homework yesterday.‎ ‎②She would rather you came(come) tomorrow than today.‎ ‎③What a pity! We would rather have__followed (follow) our teacher’s advice yesterday.‎ ‎④Would you rather stayed at home or go out to have a picnic with us？stayed→stay 状元笔记全记牢 ‎(1)would rather (not) do sth宁愿(不)做……‎ ‎(2) ‎(3)would rather＋从句 ‎(4)would rather have done本来想……而未实现 Ⅰ.课文语法填空 Dr. Yuan was born in Beijing in 1930.1.Since he graduated from Southwest Agriculture College in 1953，he has devoted his life to 2.finding (find) ways to grow more and more rice.As a young man，he saw the great need 3.for increasing the rice output.At that time，hunger was 4.a serious problem in many parts of the country.Dr. Yuan searched for a way 5.to__increase (increase) rice harvests without expanding the area of fields.In 1950，Chinese farmers could only produce fifty million ‎ tons of rice.Last year，however，nearly two hundred million tons of rice 6.was__produced (produce).These 7.increased (increase) harvests mean 8.that 22% of the world’s people are fed from just 7% of the farmland in China.Dr. Yuan is now circulating his knowledge in India，Vietnam and other less developed countries to increase their rice harvests.Thanks to his research，the UN is trying to rid the world 9.of hunger.10.Using (use) his hybrid rice farmers are producing harvests twice as large as before.‎ Ⅱ.课文短文改错 Although he is one of China’s most famous scientists，but Yuan Longping considers himself a farmer，for he work the land to do his research.Indeed，his sunburnt face and arms and his slim，strong body are just like those of millions of Chinese farmers，for whom he has struggled the past five decades.Dr Yuan Longping grows that is called super hybrid rices.In 1974，he became a first agricultural pioneer in the world to grow rice that has a highly output.This special strain of rice makes that possible to produce one－third more of the crop in the same fields.Now more than 60% of the rice producing in China each year is of this hybrid strain.‎ 答案 Although he is one of China’s most famous scientists， Yuan Longping considers himself a farmer，for he the land to do his ‎ research.Indeed，his sunburnt face and arms and his slim，strong body are just like those of millions of Chinese farmers，for whom he has struggled the past five decades.Dr Yuan Longping grows is called super hybrid .In 1974，he became first agricultural pioneer in the world to grow rice that has a output.This special strain of rice makes possible to produce one－third more of the crop in the same fields.Now more than 60% of the rice in China each year is this hybrid strain.‎ Ⅲ.单元要点微写作 请根据下面提示，对非洲的大体情况作简单评论。‎ ‎1.现状：‎ ‎①同干旱等的自然灾害作斗争；‎ ‎②缺少足够的设备；‎ ‎③作物的产量减少。‎ ‎2.措施：‎ ‎①集中精力学习发达国家的先进技术；‎ ‎②逐步增强食物供给。‎ 注意：1.词数：60左右；‎ ‎2.尽量使用本单元的知识点；‎ ‎3.可适当增加细节。‎ ‎【参考范文】‎ I would like to make simple comments on the situation of Africa.As you know，most of people there struggle against natural disasters，like drought.What’s worse，to our regret，they lack enough equipment；as a result，the crop output is greatly reduced.Happily，they plan to focus on learning advanced technology from developed countries，and build up the food supply.I believe，all these measures will lead to much progress in their life.‎ Ⅰ.阅读理解 A Hidden London：the city’s lesser known delights Dulwich Picture Gallery As much an excuse to enjoy the village charms of Dulwich Village as to admire some delicate European masterworks，this gallery is a ‎ southeast London charmer，which was founded in 1811.Join a free guided tour to the permanent collection (3 pm Saturday and Sunday)，catch the latest temporary exhibition and admire the lovely garden (open 1：30 pm to 3：30 pm Tuesdays).‎ Where：Gallery Rd SE21 7AD Train：West Dulwich Temple Church Featuring in the novel The Da Vinci Code and dating back to the late 12th century，this is one of London’s oldest and holiest medieval(中世纪的)treasures.Built by the Knights Templar，the church is divided into the Round—which contains the statues of crusading knights，who tried to recover the Holy Land from the Muslims in the Middle Ages—and the Chancel，where the priests (牧师) and singers performing in church services sit.‎ Where：Temple EC4Y 7DE Underground：Temple or Blackfriars Chelsea Physic Garden Endlessly satisfying the green－fingered，the plain curious or those eager to discover botanical interests in central London，this delightful walled garden was founded by the Apothecaries’ Society in the 17th century and is one of the oldest botanical gardens in London.‎ Where：66 Royal Hospital Rd SW3 4HS Underground：Sloane Square Estorick Collection of Modern Italian Art Built between 1953 and 1958，the Estorick is Britain’s only gallery devoted to Italian art.It draws together a fascinating collection of Futurist masterpieces from Umberto Boccioni.Giacomo Balla，Carlo Carra and others，who emphasized the importance of modern things，especially technology and machines.‎ Where：39a Canonbury Sq N1 2AN Underground：Highbury & Islington ‎【语篇导读】　本文是应用文。文章介绍了四处鲜为人知的伦敦景点。‎ ‎1.When can you follow a free guide to visit Dulwich Picture Gallery?‎ A.3 pm on Sunday.‎ B.3：30 pm on Tuesday.‎ C.1：30 pm on Tuesday.‎ D.1：30 pm on Saturday.‎ 答案　A　[细节理解题。根据第一部分中的Join a free guided tour to the permanent collection (3 pm Saturday and Sunday)可知，每周六、日的下午3点可以跟着免费导游参观达利奇美术馆。]‎ ‎2.Where should you go if you have an interest in plants?‎ A.Gallery Rd SE21 7AD.‎ B.Temple EC4Y 7DE.‎ C.66 Royal Hospital Rd SW3 4HS.‎ D.39a Canonbury Sq N1 2AN.‎ 答案　C　[细节理解题。根据第三部分中的green－fingered，botanical interests，delightful walled garden及one of the oldest botanical gardens可知，如果对植物感兴趣的话应该去切尔西草药园，其地址为66 Royal Hospital Rd SW3 4HS。]‎ ‎3.If you want to enjoy Italian art，you may get off at ________.‎ ‎　　　　　　　　　　　　　　　　　　　‎ A.West Dulwich B.Blackfriars C.Sloane Square D.Highbury 答案　D　[细节理解题。根据最后一部分中的the Estorick is Britain’s only gallery devoted to Italian art可知，如果对意大利艺术感兴趣的话应该去艾斯托力克现代意大利艺术馆，乘坐地铁在Highbury或Islington下车。]‎ Ⅱ.七选五 The Advantages of Hobbies Hobbies provide entertainment and a chance to continuously learn something new and develop a skill set.__1__‎ Hobbies are praised as a key to stress reduction.Becoming lost in the mental concentration or physical action which you are deeply interested in helps you shift focus from the parts of life that are stressful.__2__And in turn you are more peaceful when working on other work.‎ ‎__3__Many people set goals with their hobbies that provide them satisfaction when these goals have been achieved.These goals can be simple，like improving a golf score，writing a certain number of pages for a novel each day or seeing an entire collection of classic films.‎ Hobbies provide a sense of community when you meet other people ‎ who enjoy similar activities.__4__More populated cities typically have numerous clubs or groups for people to share their knowledge and enthusiasm about a particular hobby. Becoming a member of one of these organizations allows greater growth within your hobby，as well as a chance to make new friends.‎ Having a hobby can develop a talent that makes a person feel proud and satisfied.For example，a tennis hobby developed at a young age can lead to a career as a professional athlete one day.__5__For example，writer Vladimir Nabokov also collected butterflies，which allowed him to do better in his chosen fields because he used learned skills from one to improve the other.‎ A.There are a variety of hobbies.‎ B.Hobbies also provide a sense of achievement.‎ C.Some hobbies affect other aspects of your life.‎ D.Focusing on something enjoyable can calm the mind.‎ E.They also provide many other social and health benefits.‎ F.Having a hobby increases the chances to interact with like－minded people.‎ G.Some hobbies containing physical activities offer an enjoyable way to stay healthy.‎ ‎【语篇导读】　本文是一篇说明文，主要说明拥有兴趣爱好的益处。‎ ‎1.E　[上下文过渡句。本选项承接上一句来说明兴趣爱好有社交及健康方面的益处，为下文的展开做了铺垫，同时起到点明文章主旨的作用，所以选E。]‎ ‎2.D　[细节支撑句。本段的主题句为“Hobbies are praised as a key to stress reduction”。下文是为主题句服务的。结合上下文可知本选项接着上一句来说明专注于喜欢的事物可以让人心情平静，并为下一句说明心情平静的好处做了铺垫，所以选D。]‎ ‎3.B　[段落主旨句。根据空格后的内容可知，本段主要说明了兴趣爱好可以给人们提供一种成就感，所以选B。空格下一句中的satisfaction和achieved为解题关键。]‎ ‎4.F　[细节支撑句。本选项对主旨句展开说明，说明拥有某种爱好增加了和志趣相投的人交流互动的机会，所以此处选F。]‎ ‎5.C　[细节支撑句。空白前一句说到年轻时爱好网球有一天可能会成为职业网球运动员。由选项后面的举例可知一些兴趣爱好会影响到你生活的其他方面，所以选C。]‎ Ⅲ.完形填空 An old man went to live with his son，daughter－in－law，and 4－year－old grandson.The old man’s hands__1__，his eyesight was not clear，and his__2__unsteady(不稳定的).The family were__3__every ‎ night at the dinner table.But the elderly grandfather’s shaky hands and__4__sight made this rather difficult.Peas rolled off his spoon onto the floor.When he grasped the glass，__5__would often spill(洒落)onto the tablecloth.“We must do something about grandfather，” said the husband.‎ So the husband and wife set a small table in the corner.There，grandfather ate__6__ in the corner while the rest of the family enjoyed dinner at the dinner table.__7__grandfather had already broken a dish or two，his food was served in a__8__bowl.Sometimes，when the family__9__grandfather，he had a tear in his eye as he ate alone.__10__，the only words the couple had for him were sharp__11__when he dropped a fork or spilled food.The 4－year－old boy watched all this__12__.‎ One evening before supper，the father__13__his son playing with wood scraps(小块)on the floor.He asked the child sweetly ：“What are you making？” Just as__14__，the boy answered：“Oh，I am making a little__15__for you and mama to eat your food from when I grow up.”The 4－year－old boy smiled and went back to__16__on it.‎ The words__17__the parents so much that they were__18__.Then tears started to stream down their cheeks.__19__no word was spoken，both knew what they had to do.That evening，the husband took ‎ grandfather’s hand and__20__led him back to the family table.‎ ‎【语篇导读】　一位老人由于年迈，吃饭时总是洒落食物，甚至打破盘子，因此他的食物被放在了木碗中。4岁的孙子目睹了这一切并打算为爸爸妈妈也造个木碗。在得知孩子天真的想法后，爸爸妈妈幡然醒悟。‎ ‎1.A.wounded B.moved ‎ C.trembled D.dragged 答案　C　[A项“受伤”(刀、枪、剑伤等)；B项“移动”；C项“发抖”；D项“拖，拽”。]‎ ‎2.A.step B.feet ‎ C.speech D.body 答案　A　[老人因年迈脚步不稳，故选step(步伐，脚步)。feet脚；speech话语，演讲；body身体。]‎ ‎3.A.away B.together ‎ C.asleep D.apart 答案　B　[根据下文可知：老人被安置在一角落独自吃饭。故在那之前是家人一起吃，故选B。]‎ ‎4.A.losing B.failing ‎ C.disappearing D.rising 答案　B　[fail特指健康、视力衰弱、下降，故选B。]‎ ‎5.A.food B.pan ‎ C.milk D.dinner 答案　C　[根据设空前的词glass，我们可推知是牛奶洒了出来。]‎ ‎6.A.alone B.casually ‎ C.steadily D.bitterly 答案　A　[根据下文的“while the rest of the family enjoyed dinner at the dinner table”可知答案。]‎ ‎7.A.After B.Since ‎ C.While D.When 答案　B　[since既然，由于。该题易错选After，若选After，其后的时态应改为“broke”。]‎ ‎8.A.small B.safe ‎ C.big D.wooden 答案　D　[根据下文的“wood scraps”可知是wooden(木质的)。]‎ ‎9.A.glanced at B.stared at C.looked through D.looked after 答案　A　[glance at一瞥；stare at凝视；look through浏览；look after照看。选项A符合语境。]‎ ‎10.A.However B.Otherwise ‎ C.Still D.Rather 答案　C　[still尽管那样(in spite of that)，在语义上表递进关系。]‎ ‎11.A.comments B.quarrels C.warnings D.remark 答案　C　[comment评论；quarrel争吵；warning警告；remark言论。]‎ ‎12.A.in silence B.in advance C.in danger D.in charge 答案　A　[A项：沉默地；B项：提前；C项：处在危险中；D项：负责，掌管。]‎ ‎13.A.researched B.noticed C.searched D.explored 答案　B　[父亲留意到儿子在玩小木块，故选notice。]‎ ‎14.A.firmly B.suddenly ‎ C.cruelly D.sweetly 答案　D　[此处选sweetly是为了呼应上文的sweetly，意为儿子甜甜地答道。]‎ ‎15.A.bowl B.cup ‎ C.spoon D.pan 答案　A　[根据第8题后的“bowl”我们可选出答案。]‎ ‎16.A.worship B.work ‎ C.whisper D.weave 答案　B　[work on从事。worship崇拜；whisper低声说；weave编织。]‎ ‎17.A.impressed B.touched C.confused D.struck 答案　D　[struck (strike)触动，使人印象深刻。该题易错选touch，其意为“使感动”，相当于“move”。]‎ ‎18.A.speechless B.homeless C.fearless D.hopeless 答案　A　[这对父母触动极深以至于说不出话来。]‎ ‎19.A.Once B.Whether ‎ C.Though D.Unless 答案　C　[根据这句话的意思，可知前后是转折关系，故选Though。]‎ ‎20.A.gently B.happily ‎ C.fluently D.fortunately 答案　A　[根据语境可排除happily(开心地)。由于老人年迈，故是轻柔地将老人搀扶到餐桌旁。]‎