Unit 5 Working the land 单词讲练导学案-2024-2025学年高中英语人教版（2019）选择性必修第一册

2019人教版 英语 选择性必修一 unit 5 单词讲与练 重点词汇精讲精练 【详细版】根据实际需要进行二次编辑删减 陆续更新后续教材和单元，欢迎关注收藏 第一部分：讲 devote vt.把……献(给)；把……专用于；专心于 【教材原句】 Indeed, his slim but strong body is just like that of millions of Chinese farmers, to whom he has devoted his life. 事实上，他瘦弱但结实的身躯看起来和他为之奉献一生的千千万万的中国农民一样。 【派】devoted adj. 深爱的；忠诚的 devotion n. 关爱；奉献 【搭配归纳】 devote...to 把……用于；献身；致力；专心 devote oneself to 致力于；献身于 devote one’s life/time/energy to (doing) sth.把某人的生命/时间/精力献给…… be devoted to 专心于；致力于 【语境辨意】　 She devoted all her life to medical work for Chinese women and children. 她为中国的妇女和儿童医疗事业贡献了毕生精力。 We should devote everything we have. 我们应该奉献我们的一切。 He devoted a great sum of money to books. 他花了一大笔钱买书。 He devoted himself entirely/all his life to education. 他将一生奉献给了教育事业。 He could only devote two hours a day to the project, but his devotion to duty is worth respecting. 他一天只能在这个项目上花两个小时，但他忠于职守是值得尊敬的。 If you have a job, do devote yourself to it and finally you’ll succeed. 如果你有一份工作,务必全身心地投入,最终你会成功的。 Neighbors devoted their spare time to helping others rebuild homes. 邻居们把自己的空闲时间用于帮助他人重建家园。 Neighbors devoted their spare time to helping others rebuild homes. 邻居们把自己的空闲时间用于帮助他人重建家园。 He decided to devote the rest of his life to scientific investigation. 他决定把余生奉献给科学研究。 He always devotes his attention to helping (help) the homeless children.  Devoted (devote) to his research,he almost forgot everything about himself. We appreciated his devotion (devote) to the project. 【要点提示】以介词to结尾的常见动词短语: look forward to　　 　盼望; 期待 get down to 开始认真做某事 object to 反对 be opposed to 反对 be/get used/accustomed to 习惯于 stick to 坚持 lead to 导致; 引起 contribute to 导致; 有助于; 捐献 【同意短语】专心于，致力于 ①be lost in ②devote oneself to=be devoted to ③concentrate on ④be absorbed in ⑤focus on 【讲练通关】 单句语法填空 ①You will never gain success unless you are fully ________ (devote) to your work. ②I still remember what you have devoted to ________ (improve) my oral English and writing skills. ③We have learned a great deal from her ________ (devote) to her work and her willingness to help others. 句式升级 ④As the scientist is devoted to his research, he seldom goes to the cinema with his family. →________________________， he seldom goes to the cinema with his family.(用非谓语动词改写) Key：①devoted　②improving　③devotion　④Devoted to his research ①The old teacher ________ all his life to educating his ________ students and he was admired for his ________ to the education cause. (devote) ②________ to learning English for years, I think I am qualified for the job because I am capable of communication with foreigners in English fluently.(devote) ③He devoted all his spare time to ________ (help) his students with all their English. ④He made up his mind to devote all he had ________ (help) those poor children. Key： devoted　 devoted　devotion devoted　 helping to help shortage n.不足；缺少；短缺 short adj.不足的；缺少的；短缺的 ①a shortage of funds资金不足 ②fall short of sth.未达到；不符合 ③be short of缺乏，短缺 ④in short总之；简言之 convince vt.使相信;使确信;说服 【教材原句】Yuan was convinced that the answer could be found in the creation of hybrid rice. 袁隆平确信，从杂交水稻的创造中可以找到答案。 【派】convinced adj.坚信的;深信的;确信的 convincing adj.令人信服的 convincingly adv. 令人信服地；有说服力地 【搭配归纳】 convince sb.of sth.　　　使某人相信某事 convince sb. to do sth. 说服某人做某事 convince sb.that... 使某人相信…… be convinced of... 确信……；相信…… be convinced that... 确信…… 【语境辨意】 You'll need to convince them of your enthusiasm for the job. 你需要使他们相信你对这项工作有热情。 Robert's expression had obviously convinced her of his innocence. 罗伯特的表情显然使她相信他是清白的。 She needed to find a way to convince Michel he was wrong. 她需要想办法使米歇尔相信他错了。 We've been trying to convince him to give up the plan． 我们一直在试图说服他放弃那个计划。 What she said convinced me that I was mistaken. 她说的话让我相信我错了。 He convinced me of his honesty 他使我相信他是正直的。 I’ve been trying to convince Jean to come with me.我一直在设法说服琼跟我一起去。 Only by presenting facts and reasoning things out can we convince people. 【讲练通关】 ①My parents have always convinced me ________ (challenge) myself, for which I'm really grateful. ②There is now ________ (convince) evidence that smoking causes lung cancer. ③I am ________ (convince) that with our joint efforts we can undoubtedly get good results. ④It took a long time ____________ (convince) me of his honesty.  ⑤I think I can’t believe you,for you haven’t offered enough _________ (convince) evidence. ⑥We _______________ (convince) that the trouble is with the problem itself, not with us. 句式升级 ⑦I'm convinced that your advice will contribute to our good performance, so I sincerely hope you can help us. →_____________________________________________________， I sincerely hope you can help us.(用分词作状语升级句) Key：①to challenge　②convincing　③convinced　④to convince ⑤ convincing ⑥are convinced ⑦Convinced that your advice will contribute to our good performance ①He tried to convince me of the truth of the news, but he could not provide ________ proof. Therefore, it seemed that he did not speak ________.(convince) ②________ (convince) that the Belt and Road Initiative will benefit the China's economy, we are optimistic about the future of our country. ③Scientists are convinced ________ the positive effect of the laughter on physical and mental health. Key：convincing　 convincingly of The seller persuaded the man into buying the car in an utterly (convince) way. Most people are convinced　 　     the best way to build a great team is to gather a group of the most talented individuals. We (深信) we were doing the right thing. These results demonstrate (convince) that our campaign is working. KEY: convincing that were firmly convinced that convincingly attain vt.(通常经过努力)获得;得到 【教材原句】One characteristic of hybrids is that they usually attain a higher yield than conventional crops.杂交作物的一个特点是它们的产量通常比传统作物高。 【派】attainable 　adj.可到达的;可得到的;可实现的 attainment n.达到;获得 【搭配归纳】 attain one’s aim/goal 达到某人的目标 attain knowledge 获得知识 【语境辨意】 Devoted to his job, he finally attained his goal. 他专心致志于工作，终于实现目标。 Through great effort,Tom attained five “A” grades in the exams.  经过巨大努力,汤姆考试成绩得到五个“A”。 They finally attained their goals.  他们最终实现了他们的目标。 【讲练通关】 填空 ①It is known to us that India ________ (attain) independence in 1947. ②Those goals are both worthy and ________ (attain)． 微写作 ③不管别人说什么，只要不放弃你就一定能实现你的目标。 No matter what anyone says, you can ________________________________________． Key：①attained　②attainable　③attain your goals if you don't give up assumption n．假定；设定；(责任的)承担；(权利的)获得 assume vt. 假定；设想 【教材原句】The common assumption then was that it could not be done. 当时普遍假设这是不可能的。 【搭配归纳】 make an assumption 认为；假定 on the assumption that...假定…… assuming(that)... 假设/假定…… assume sb./sth. to be... 假定/假设某人/某物为…… It is assumed that... 人们认为…… 【语境辨意】 You must admit that your argument is based on a completely false assumption. 你必须承认你的论点建立在一个完全错误的假设上。 She's always making assumptions about how much money people have. 她总在猜别人有多少钱。 Your argument is based on a set of questionable assumptions. 你的论证建立在一套有问题的假设上。 It is generally assumed that too much work will cause stress. 一般认为，过重的工作会造成压力。 You assume him to be innocent before hearing the evidence against him. 在听到对他不利的证词之前，你假定他是无罪的。 In most cases a false assumption would lead to a problem for the project, since we usually tend to assume that things will go the way we want. 在大部分的情况下，错误的假定会导致项目发生问题，因为我们通常倾向于假定事情会如我们所希望般的发生。 It is universally assumed that global warming and climate change could cause even more disasters in the future. 【讲练通关】 单句语法填空 ①We are working ________ the assumption that everyone has the ability to tackle difficult problems. ②Many students are in favour of wearing the traditional Chinese clothes, ________ (assume) they can reflect Chinese culture. 一句多译 据我所知，很多人认为他是对的。 ③As far as I'm concerned, a great many people ________________________________．(assume) ④As far as I'm concerned, a great many people ________________________________. (assumption) Key： 5.①on　②assuming　③assumed that he was right　④made an assumption that he was right ①Don't ________ that you are a princess and stop living in ________ any more. (assume) ②________ is generally assumed that stress is caused by too much work. ③With the rapid development of the economy, China is assuming ________ greater role in the protection of the environment. ④We are working on the plan ________ the assumption that everyone invited will turn up. Key：assume　 assumptions　it a on overcome vt.(overcame, overcome)克服；解决；战胜 【教材原句】 Through intense effort, Yuan overcame enormous technical difficulties to develop the first hybrid rice that could be used for farming in 1974. 通过不懈的努力，袁隆平克服了巨大的技术困难，于1974年培育出了第一种可用于农业生产的杂交水稻。 【搭配归纳】 overcome the enemy 战胜敌人 overcome the difficulties 克服困难 be overcome by fear/despair/depression 被恐惧/失望/抑郁困扰 overcome one’s shortcomings克服某人的缺点 be overcome with grief 悲不自胜 be overcome with regret　　　后悔不已 be overcome with... 因……而受不了 【语境辨意】 The night before the test I was overcome by fear and despair. 考试前的晚上，恐惧和绝望让我内心很困扰。 Failures can help us learn and overcome fears.  失败可以帮助我们学习并克服恐惧。 Once this difficulty is overcome,other problems will be easy to solve.  一旦战胜这一困难, 其他问题就容易解决了。 In the final game Sweden easily overcame France. 在决赛中，瑞典队轻松战胜了法国队。 I would overcome any weakness, any despair, any fear. 我要克服所有的软弱、绝望和恐惧。 He overcame all kinds of difficulties and succeeded at last. 他克服了种种困难最终取得了成功。 【讲练通关】 单句语法填空 ①The learner of a second language has many obstacles ________ (overcome)． ②Relying on our own efforts, we ________ (overcome) all the difficulties so far. 应用文佳句 ③如果你想在学习上取得更大的进步，你仍有许多困难要克服。 If you want to make greater progress in your study, you will still ________________________． Key：①to overcome　②have overcome　③have many difficulties to overcome expand vt.&vi.扩大；增加　vt.扩展；发展(业务) 【派】expansion n.扩张；膨胀；扩展；扩大 【搭配归纳】 expand knowledge of foreign culture 扩大对外国文化的了解 expand/broaden one's view 开阔视野 expand ...into... 把……扩展/发展成…… expand into... 发展成/扩大成…… expand on sth. 细说(阐述)…… 【教材原句】 This hybrid enabled farmers to expand their output greatly. 这种杂交植物使农民能够大幅度增加他们的水稻产量。 【语境辨意】 I don't think we should expand our business in the current economic climate. 在目前的经济环境下，我认为我们不应该扩大业务。 The petals of many flowers expand in the sunshine. 许多花瓣在阳光下绽放。 The business has expanded greatly over the last year. 过去的一年里， 这家公司极大地增加了业务量。 Could you expand on this point, please? 请你把这一点详细说明一下，好吗？ 【讲练通关】 单句语法填空 ①Yuan Longping searched for a way to increase rice harvests without ________ (expand) the area of the fields. ②Given the necessary investment, this region is perfect for economic ________ (expand)． 微写作 ③令我高兴的是，通过旅行我开拓了视野。 To my delight, I have ________________________________． Key: ①expanding　②expansion　③expanded my view by travelling In order ________ my knowledge of Tianjin, such as its history, tradition and food, I spend every spare moment I have in the library. (expand) ②It's a fact that iron ________ when it is heated. (expand) ③________ (expand) your knowledge by reading more books is a wise choice. ④Could you expand ________ that point, please? Key： to expand expands expanding on estimate vt.估计;估价;估算 n.估计;估算 【语境辨意】 ①It is estimated that total cost of rebuilding homes in the country will continue to increase this year.  ②At a rough estimate,one third of the country’s water has been polluted.  ③We need to make an accurate estimate about the cost of travelling.  【搭配归纳】 estimate sth.at...　　　　估算某物为…… be estimated to do sth. 估计做某事 It is estimated (that)... 据估计…… at a rough estimate 粗略估计 make an accurate estimate 作出准确估计 【讲练通关】 1) It was difficult ______________(estimate) how many trees had been destroyed. 2) __________ is estimated that smoking causes 1,000,000 premature deaths every year. 3) Ocean plastic is estimated ___________(kill) millions of animals every year. Key：to estimate It to kill comprise vt.包括；包含；由……组成 【教材原句】 Today, it is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan's hybrid strains. 据估算，现在中国国内消费的大米有大约60%来自袁隆平的杂交水稻品种形成的作物。 【搭配归纳】 be comprised of＝be made up of 包括；由……组成=be composed of =consist of...由……组成 【语境辨意】 People aged 65 and over now comprise nearly 20% of the population. 65岁及以上的人占现在人口的近20%。 The committee is comprised of representatives from both public and private sectors. 委员会由政府和私人部门的双方代表组成。 Groups are comprised of two or more people. 小组由两人或两人以上组成。 The medical team is comprised of ten doctors and fifteen nurses. This year’s figures are comprised in the total.   救援队由8个士兵和2个医生组成。 The rescue team is composed of eight soldiers and two doctors. ＝ The rescue team consists of eight soldiers and two doctors. ＝The rescue team is made up of eight soldiers and two doctors. 【讲练通关】 一句多译 由专家和医务人员组成的医疗小组在地震后不久就抵达了现场。 ①________________________________ experts and medical staff arrived at the scene shortly after the earthquake. (comprise) ②________________________________ experts and medical staff arrived at the scene shortly after the earthquake. (make) ③________________________________ experts and medical staff arrived at the scene shortly after the earthquake. (consist) Key: ①A medical team comprised of　②A medical team made up of　③A medical team consisting of reality n.现实;实际情况;事实 real adj. 真实的 realise vt. 实现 【教材原句】 His latest vision for “seawater rice” has also become a reality, and potentially opened up nearly one million square kilometres of salty land in China for rice production. 他对“海水水稻”的最新设想也已成为现实，可能在中国开辟近100万平方公里的盐碱地用于水稻生产。 【语境辨意】 I can tell the difference between fantasy and reality. 我能分辨幻想和现实。 Although he is disabled, he refuses to face reality . With the development of VR,Mary’s dream has become a reality.  随着VR技术的发展,玛丽的梦想已经实现了。 【搭配归纳】 become a reality　　　　　　变成现实 in reality/fact 事实上;实际上 bring...back to reality 使……回到现实 face/accept reality 面对/接受现实 escape from reality 逃避现实 turn...into a reality/realities 实现 【同意表达】事实上，实际上 ①in reality ②in truth ③in fact ④in actual fact ⑤as a matter of fact ⑥actually 【讲练通关】 单句语法填空 ①We ought to work hard to turn Chinese Dream into a ________ (real)． ②He was sure that all his plans would ________ (realise)． 同义替换 ③He looked very confident and calm, but in fact he was extremely nervous. →He looked very confident and calm, but ________________________ he was extremely nervous. Key: ①reality　②be realised　③in reality/as a matter of fact care about 关心；在乎 【搭配归纳】 care for 照顾，照料 (＝ take care of) 喜好；愿意(用于否定句、疑问句) take care 当心；小心；注意 with care 仔细地；认真地 【教材原句】 What Yuan Longping really cared about was not money or celebrity. 袁隆平真正关心的不是金钱和名誉。 【语境辨意】 My teacher cares about me and prepares me for my future career. 我的老师关心我，为我将来的职业生涯做准备。 【讲练通关】 用care的相关短语填空 ①Wendy cares little ________ her salary, because she cares ________ the children and likes to stay with them. ②When traveling, you must ________ your health. 微写作 ③真正的朋友关心彼此的需要，并主动伸出援手。 True friends ______________________________ and help to solve problems. Key: ①about; for　②take care of　③care about each other's needs deep down 在内心深处；本质上；实际上 【语境辨意】 Deep down, Yuan Longping is still very much a farmer at heart. 在内心深处，袁隆平还是一个很有农民情怀的人。 【派】 → deeply adv. 很，非常；强烈地，深深地 → deepen vi.&vt. 加深,加深（理解） → depth n. 向下（或向里）的距离；深（度） 【搭配归纳】 in depth 全面；深入；详细 at a depth of... 在...的深处 in turn相应地;转而;依次;轮流 【教材原句】 This affects the crops grown on the land and, in turn, the animals and humans who digest them. 这影响到在土地上种植的作物，进而影响到消化它们的动物和人类。 【语境辨意】 The shop assistants had to have their days off by turns. They had to take turns to look(look) after the patients.  Theory is based on practice and in turn serves practice. 理论以实践为基础，反过来又为实践服务。 This affects the crops grown on the land and, in turn, the animals and humans who digest them. 这影响生长在土地上的农作物，转而又影响消化他们的动物和人类。 【搭配归纳】 by turns轮流地(表示“轮流地,交替地”,多用来强调某一时期反复发生的动作) take turns in doing/to do sth.　轮流做某事 It’s one’s turn to do sth. 轮到某人做某事 take one’s turn 轮到某人做 in one’s turn 轮到某人；接着 It turns/ turned out that… 结果是…… 【讲练通关】 语法填空 ①He spends too much time on maths, which ________ turn affects the progress of his other subjects. ②When it was my turn ________ (give) a speech, I was too excited to speak. ③When my mother was ill, my brother took turns ________ (take) care of her. 微写作 ④一方面，它不仅有助于强身健体，还相应地帮助我们更有效地学习。 For one thing, not only does it help to build up our health, but it also helps us _________________________． KEY: ①in　②to give　③to take　④to learn more effectively in turn ①It is our responsibility to take care of our sick mother ________ turns. ②When it was his turn ________ (deliver) his speech，he walked towards the platform，nervous and embarrassed. ③He spends too much time on maths，and this ________ turn affects the progress of the other subjects. ④At the meeting they took turns ________ (put) forward a number of suggestions aiming to promote the reform of education system. ⑤When it was ________ my turn，I was too excited to speak. Key：by to deliver in to put in digest vt.&vi.消化　vt.领会；领悟　n．文摘 【搭配归纳】 digest food 消化食物 digest the information 领会信息 a monthly news digest 每月新闻摘要 【语境辨意】 You should allow a little time after a meal for the food to digest. 饭后你应该留点时间让食物消化。 【讲练通关】 写出下列句中digest的词性和含义 You shouldn't go swimming until your food has had a chance to digest. ________ Digested rapidly by the body, sugar provides a quick energy source. ________ The magazine she gave me is Reader's Digest. ________ It took me a long time to digest the theory put forward at the meeting. ________ KEY: vi.消化　vt.消化　n.文摘　vt.领会；理解 essential adj.完全必要的；极其重要的 【教材原句】 They may look beautiful on the outside, but inside there is usually more water than essential minerals, and they often have less flavour as well. 它们可能外表看起来很漂亮，但里面通常有更多的水分，而不是基本的矿物质，而且它们通常也没有那么多的味道。 【搭配归纳】 be essential to 对……不可缺少的 It is essential for sb. to do sth. 对某人来说做某事是必要的 It is essential that...should do sth. 做某事是必不可少的 【语境辨意】 As far as I'm concerned, money is not essential to happiness. 就我个人而言，金钱对于幸福并非必不可少。 【讲练通关】 补全句子 ①有必要把这些申请表尽早寄回。 It is essential that these application forms ________________________________________． ②丰富多样的文化生活对这对夫妇而言是至关重要的。 A rich and varied cultural life ______________ this couple. Key：①(should) be sent back as early as possible　②is essential for alternative n．可供选择的事物　adj.可供替代的；非传统的 【教材原句】 As an alternative, some farmers have switched to organic farming, and many customers have turned to organic food when they shop at the local grocery. 作为一种选择，一些农民转向有机农业，许多顾客在当地杂货店购物时转向有机食品。 【搭配归纳】 have no alternative/choice but to do sth.别无选择只好做某事 there's no alternative...but to do sth.……别无选择只好做某事 have the alternative of doing sth.有做……的选择，可以做…… an alternative to... ……的替代品 【派】alternatively adv. 可供选择地 要不，或者 “别无选择只好做……”的其他表达形式： (1)have no choice but to do sth. (2)can't do sth.but do sth. (3)can do nothing but do sth. 【语境辨意】 If you don't like the school lunch, you have the alternative of bringing your own. 要是你不喜欢学校的午餐， 你可以自己带饭。 【讲练通关】 单句语法填空 ①In order to reduce pollution，we have no alternative but ________ (choose) some clean resources. ②The Internet also provides us with a cheap alternative to ________ (communicate) with others. 词汇升级 ③Faced with COVID-19, we have no choice but to stay at home to alleviate the serious situation. →Faced with COVID-19, we have no ________ but to stay at home to alleviate the serious situation. Key：①to choose　②communicating　③alternative ①The manager said that they had ________ alternative plan if the plan they had put forward was not accepted. ②The Internet also provides us with a cheap alternative to ________ (communicate) with others. ③It was so serious a matter that I had no alternative but ________ (call) the police. ④The agency will make travel arrangements for you.________ (alternative), you can organize your own transport. Key： an communicating　to call　Alternatively depth n．向下(或向里)的距离；深(度) 【教材原句】 Organic farmers also plant diverse crops that use different depths of soil to help keep it rich. 有机农场主种植多种作物，利用不同深度的土壤来帮助保持土壤肥沃。 【派】 adj. deep high wide long strong broad n. depth height width length strength v． deepen heighten widen lengthen strengthen broaden 【语境辨意】 We have expressed the depth of our gratitude to them. 我们向他们表达了深深的谢意。 【讲练通关】 单句语法填空 ①His ideas lack ________ (deep)． ②As far as I know, her lies hurt her father ________ (deep)． ③College students can gain social experience and ________ (broad) their horizons because of doing part-time jobs. KEY: 18.①depth　②deeply　③broaden keep...free of/from...使……免受(影响、伤害等) 【语境辨意】 ①We should keep the children free of/from drugs. ②She has kept up physical training for several years without interruption. ③In the years ahead,he reflected that he would need to stay alert and informed just to keep up with Celia mentally. 【搭配归纳】 keep up　　　　　　保持,使不低落 keep up with 赶上,不落后 keep out(of...) 不让……进入 keep off 离开;避开 第二部分：练 【词形变化】 1. ________ vt. 把…献(给)；把…专用于；专心于→_______ adj. 忠实的；深爱的→_______ n.忠诚 2. ________ vt. 使相信；使确信；说服→________ adj. 确信的；信服的→________ adj. 令人信服的 3. _________ n. 人物，角色；性格；特点→_________ n. 特征；特点；品质 adj.典型的；独特的 4. _________ n. 常规；惯例→_________adj. 传统的；习惯的 5. _________ vt.以为；假设→_________ n.假定；设定；(责任的)承担；(权利的)获得 6. _________ vt.&vi.扩大；增加vt.扩展；发展(业务)→_________ n.扩张 7. _________ vt. 消费；消耗→_________ n. 消费者→_________ n. 消耗；消耗量；消费 8. _______ adj.真实的→________ n. 现实；实际情况；事实→_______ adj.现实主义的；写实主义的 9. _________ n. 盐→_________ adj. 含盐的；咸的 10. _________ v.扩展，延伸→_________ n.扩建部分；扩大；电话分机 11. _________n.化学→_________ adj.与化学有关的；化学的n.化学制品；化学品 12. _________ n. 营养；滋养→_________adj.有营养的；营养丰富的→_________adj.营养(物)的   13. ________ adj.贫穷的→ _________ n.贫穷；穷困  14. _________ n. 矿，矿山→_________ n. 矿工→ _________n.矿物；矿物质 15. _________ adj.深的→_________ n.向下(或向里)的距离；深(度) 16. _________ adj. 整个的；完全的→_________ adv. 全部地；完整地；完全地  Key: 1.devote；devoted；devotion 2.convince；convinced；convincing 3.character；characteristic 4.convention；conventional 5.assume；assumption 6.expand；expansion 7.consume；consumer；consumption 8.real；reality；realistic 9.salt；salty 10.extend；extension 11.chemistry；chemical 12.nutrition；nutritious；nutritional 13. poor；poverty 14.mine；miner；mineral 15.deep；depth 16.entire；entirely 话题语篇串记 Food shortages have long been disturbing people in developing 39 (country).Yuan Long ping, he famine fighter once said, “My lifetime pursuit is to ensure all people stay away from 40 (starve). Since the 1980s, Yuan’s team has offered training courses in dozens of countries in Africa, the Americas and Asia, 41 (provide) a strong food source in areas with a high risk of famine. 42 (global), more than 820 million people were hungry in 2018, according to a UN report. And if hybrid rice is planted in half of the world’s paddy fields(稻田), the 43 (add) yield(产量) alone can feed another 500 million people, said Yuan. Yuan’s team 44 (keep) on making new breakthroughs over the past few years. Yuan’s team was invited to make a plantation of 45 saline-alkaline tolerant rice(海水稻) in experimental fields in Dubai in January 2018, 46 achieved a huge success. China’s export of saline-alkaline tolerant rice and its technique has been considered 47 a way to battle for the world’s food security. In 2019, Yuan was awarded the Medal of the Republic, the country’s 48 (high) honour, for his contribution to China’s food security and scientific development of agriculture, as well as increasing the world’s food output. 39. countries 40. starvation 41. providing 42. Globally 43. added 44. has kept 45. the 46. which 47. as 48. highest Our class is 1._______(comprise) of thirty students from the countryside.All of us envision ourselves 2._______(attain) respectful jobs in urban cities in the near future.The dream is rooted in our heart.We are greatly 3.             (convince) that being entirely devoted 4.___ our study can boost our confidence in tackling problems we come across. Certainly，5.____is essential that we shouldn’t yield to difficulties.The instant we can’t digest 6.____ the teacher says in class，we will be overcome with sorrow，but we have alternative methods to alleviate our frustration. 7.____ instance，we will buy nutritious foods in a grocery store to distract our attention，although we have a 8.______ (short) of money.On the 9.______ (assume) that we always have such an intense interest in study，we can definitely put our dreams into 10.             (real)，which in turn can enable us to live a better life that we have been looking forward to. Key:1.comprised 2.attaining 3.convinced 4.to 5.it 6.what 7.for 8.shortage 9.assumption 10.reality 【词汇综合练习】 1. She gladly gave up her part-time job to devote herself entirely _________ her art. 2. Her _________ (devote) to the job left her with very little free time.  3. After a _________ (convention) opening remarks, he made a brilliant speech. 4. We are working on the _________ (assume) that the conference will take place as planned. 5. The class is comprised mainly _________ Italian and French students. 6. Martin Luther King, Jr, campaigned for the _________ (extend) of civil rights to black people. 7. I had to admit that it was _________ (entire) my fault. 8. We felt at home with her and were impressed with the  _________ (deep) of her knowledge. 9. It _____ (estimate) that 1.3 billion people will use English as either a first or a second language by 2050. 10. .It is important to introduce children to healthy __________ (nutrition) foods from when they begin to eat solids.  Key: 1.to 2.devotion 3.conventional 4.assumption 5.of 6.extension 7.entirely 8.depth 9.is estimated 10.nutritious 学科网（北京）股份有限公司 $$