Unit 5 The Value of Money Discovering Useful Structures 课时作业 -2025-2026学年高中英语人教版必修第三册

**基本信息** 高中英语必修三Unit 5第三课时同步练，以情态动词为核心，通过基础-进阶-综合三层设计，实现从单一语法点到主题语境应用的递进，培养语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|情态动词基本用法|单句填空（10题）聚焦can/may/must等核心词，语法与写作（4题）通过中英互译巩固基础表达| |进阶层|语篇中情态动词运用|原创语篇写作（10空）设置博物馆旅行情境，综合考查must/should/can等在真实语境中的准确使用| |综合应用层|主题语境综合能力|阅读理解、完形填空等题型围绕"价值"主题，融合情态动词理解与文化意识、思维品质培养|

2026-2027高中英语 必修三 课时作业 Unit 5　 THE VALUE OF MONEY Period Three　Discovering Useful Structures ●Ⅰ 单句填空(用适当的情态动词填空)(每小题1.5分,满分15分) 1.　　　　　　 I have a word with you? It won’t take long.   2.My sister met him at the cinema yesterday afternoon, so he 　　　　　　have attended your lecture at that time.   3.The new law states that people 　　　　　drive after drinking alcohol.   4.You 　　　　　　be Carol. You haven’t changed a bit after all these years.   5.It is strange that it 　　　　　　be so cold today in May.   6.Jim says we 　　　　　　stay in his house so long as we leave it clean and tidy.   7.I work not because I 　　　　　　work, but because I want to.   8.This is free service; you 　　　　　　not pay for it.   9.We 　　　　　　leave now or we’ll miss the train.   10.He promised that he 　　　　　　join us in the party, but he hasn’t turned up until now.   ●Ⅱ 语法与写作(每小题3分,满分12分) 1.You 　　　　　　　　　　　　　　　　at home. It all depends on yourself!   你可以和她一起去,也可以待在家里,这完全取决于你自己! 2.You 　　　　　　　　　　without breakfast for it’s bad for your health.   你最好不要不吃早餐就去学校,因为那对你的健康有害。 3.I 　　　　　　　　　　today because I am going out tomorrow.   我今天必须完成这篇论文,因为我明天要出去。 4.You have made the same mistake again and you 　　　　　　　　　　next time.   你又犯了同样的错误,下次你应该更加小心。 ●Ⅲ 语篇写作[原创](每小题3分,满分30分) Our class will go on a museum trip next week. We 1.　　　　　　 (必须到达学校) by 8 am, so I 2.　　　　　　(不得不把闹钟设早点). The teacher says we 3.　　　　　　(应该带一个笔记本) to take notes. Before leaving, we 4.　　　　　　 (应该检查我们的包) to make sure we haven’t forgotten anything important. During the tour, we 5.　　　　　　(可以跟着导游) or explore alone, but we 6.　　　　　　(禁止脱离队伍).  Besides, we 7.　　　　　　(可能参观科学实验室)on the second floor if time allows. My friend Lily and I 8.　　　　　　(可以准备一些问题)about ancient history. We could also share interesting facts we find with each other. After lunch, we may buy souvenirs in the gift shop. To make the trip more meaningful, we 9.　　　　　　(应该写下我们的感受和想法) in a journal. Trips like this 10.　　　　　　(能够帮助我们学习)outside the classroom and broaden our horizons!  ●Ⅳ 阅读理解(每小题2.5分,满分10分) Imagine this: you’re at a movie theatre food stand loading up on snacks. You have a choice of a small, medium or large soda. The small is $3.50 and the large is $5.50. It’s a tough decision: the small size may not last you through the whole movie, but $5.50 for some sugary drink seems unreasonable. But there’s a third option (选择), a medium soda for $5.25. The medium might be just right for you, but the large only costs a quarter more. If you’re like the majority of people, you end up buying the large. If you’re wondering who would purchase the medium soda, the answer is almost no one. Actually, there’s a good chance that the marketing department purposely priced the medium soda as a decoy (诱饵), making you more likely to buy the large soda rather than the small. I have written about this unique human nature previously with my friend Dan Ariely, who, after noticing pricing for subscription (订阅) to The Economist, studied this phenomenon extensively. The digital subscription was $59, the print subscription was $125, and the print plus digital subscription was also $125. No one in their right mind would buy the print subscription when you could get the digital subscription as well for the same price, so why was it even an option? Ariely ran an experiment and found that when only the two “real” choices were offered, more people chose the less-expensive digital subscription. However, the bad option increased people’s likelihood of selecting the expensive print plus digital option. Brain scientists call this effect “asymmetric dominance” and it means that people are attracted to the option that is closest to an obviously inferior (较差的) option. Marketing professors call it the decoy effect, which is certainly easier to remember. It works because of the way our brain assigns value when making choices. Value is rarely absolute; rather, we decide an object’s value relative to other choices. If more options are introduced, the value equation (方程) changes. (　)1.Why do the shops give the third option—the medium soda? A.To offer people more choices. B.To give people the right size of soda. C.To help people save some money. D.To earn more money. (　)2.What do we learn from Dan Ariely’s experiment? A.The Economist’s print edition turns out to sell best. B.More readers choose the digital over the print edition. C.Lower-priced goods attract more customers. D.The Economist’s promotional strategy works. (　)3.From which website would you most probably find this text? A.Https://www.lifestyle.com/health. B.Https://www.science.com/local. C.Https://www.consumers.com/money. D.Https://www.education.com/science. (　)4.How do we often assess the value of a product according to the text? A.By considering its usefulness. B.By comparing it with other choices. C.By examining its former value. D.By taking its low quality into account. ●Ⅴ 阅读七选五(每小题2.5分,满分12.5分) The less you spend, the more you save. It sounds simple in theory, but in practice, it’s much more complicated. Spending is built into our daily habits, which sometimes can get us addicted to buying stuff. 1.　　　　 It’s kind of like a crash diet, but in a good way!  2.　　　  Despite the name, a no-spend challenge doesn’t mean you sit on your hands and spend no money whatsoever. After all, you don’t want to fall behind on your bills, and there are some necessities you simply can’t do without. The basic premise (前提) of a no-spend challenge is to cut out non-essential spending for a certain amount of time. It could be for a week, a month or even an entire year. What can you spend money on during a no-spend challenge? If you need to purchase something during your no-spend challenge, it should be something that’s necessary and you absolutely can’t do without. So groceries, yes. Candy bar in the checkout line, no. Also, no new iPhone, even if you’ve been dreaming about an upgrade. No new shoes, even if they’re on a huge sale. This is not the time to make excuses for buying stuff you don’t really need. 3.　　　　 The goal of this challenge isn’t to make life harder for yourself by cutting out spending on essential expenses.   The financial benefits of a no-spend challenge. 4.　　　　 You can use the extra money you normally would have spent to build up your emergency fund. Or you might want to put the money towards other financial goals, like saving for a new car or an upcoming vacation. While no-spend challenges are designed to be temporary, you can always extend your challenge. 5.　　　　  A.Decide acceptable purchases. B.What is a no-spend challenge? C.There should be no quick-fix approach. D.When will you start your no-spend challenge? E.Why not treat it as more of a lifestyle change? F.Sometimes the best way is to go on a spending freeze. G.A no-spend challenge can be a boost to your financial situation. ●Ⅵ 语法填空(每小题1.5分,满分15分) Called “the water tower of China”, Qinghai Province is home 1.　　　　　　 the Sanjiangyuan area, where the three major rivers—the Yangtze River, the Yellow River and the Lancang River—originate.  Twenty-five percent of the total water volume of the Yangtze River, 49 percent of the Yellow River 2.　　　　　　 15 percent of the Lancang River come from this significant region. Sanjiangyuan area plays 3.　　　　　 crucial role in maintaining water supply for a vast area. Its 4.　　　　　　 (important) can’t be overstated as it is like the lifeblood of many ecosystems around.  5.　　　　　　 (locate) in the southwest of Qinghai Province, Sanjiangyuan National Park was built at the source of three rivers. It is a remarkable project that 6.　　　　　　 (witness) remarkable changes over the years, 7.　　　　　　 (cover) a total area of 123,100 square kilometres. Since the trial of Sanjiangyuan National Park, water preservation has increased steadily. The local government has made great efforts to protect it. 8.　  (fortunate), these efforts have paid off. Grassland coverage has expanded and grass production has gone up by a large margin compared to 10 years ago. The park itself attracts numerous tourists every year, who come to admire 9.　　　　　 (it) unique natural beauty. And we should all do our part 10.　　　　　　 (protect) such a precious area for future generations.  ●Ⅶ 完形填空(每小题1分,满分15分) Max’s 21st birthday was approaching, and his mother Andrea expected the usual request for a check or a party. But this year, Max surprised her. “Instead of a gift for me, 　1　any check you will give me to help someone in need.” Touched by his selflessness, Andrea planned to turn his birthday into a celebration of kindness.  She passed a video camera to Max’s brother Charlie. Then she took 21 $10 bills out of her 　2　 account and bought 21 apples at the supermarket. When they 　3　 a man, who was 　4　, Andrea told him, “Today is my son Max’s 21st birthday, and he asked me to give a gift to someone to help him 　5　.” She 　6　 the man a $10 bill and an apple. The man smiled into the camera and 　7　, “Happy birthday, Max!” Soon, they 　8　 their gifts to men and women waiting in 　9　 at a soup kitchen. In a unified chorus, they wished Max, “Happy birthday!” At a pizza parlour, Andrea 　10　 $50 and told the owners to feed the 　11　. “Happy birthday, Max!” they said sincerely. With the 　12　 $10 bill and apple, they knocked at their neighbour’s door. An elderly lady lived alone, and unable to 　13　 her laughter or her tears, she faced the camera 　14　, “Happy birthday, Max!”  That evening, Max watched the 　15　 of strangers celebrating his birthday and vowed to make birthdays a time not just to receive, but to give.  (　)1.A.promote 　　　B.serve C.donate D.accept (　)2.A.home B.campus C.kitchen D.bank (　)3.A.spotted B.recognized C.sheltered D.witnessed (　)4.A.mean B.cautious C.homeless D.generous (　)5.A.count B.celebrate C.survive D.congratulate (　)6.A.headed B.transferred C.handed D.delivered (　)7.A.assured B.sighed C.announced D.wrote (　)8.A.gave away B.got across C.handed in D.broke down (　)9.A.style B.shape C.vain D.line (　)10.A.fetched B.left C.combined D.took (　)11.A.nervous B.disappointed C.curious D.hungry (　)12.A.limitless B.casual C.common D.remaining (　)13.A.contain B.judge C.explain D.interrupt (　)14.A.definitely B.eventually C.incredibly D.remotely (　)15.A.video B.website C.diary D.blog Period Three　Discovering Useful Structures Ⅰ.1.Can/May　2.couldn’t　3.mustn’t　4.must 5.should　6.can　7.have to　8.need　9.had better　10.would Ⅱ.1.can/may either go with her or stay 2.had better not go to school 3.must finish this essay 4.should be more careful Ⅲ.1.must arrive at school　2.have to set my alarm early 3.should bring a notebook　4.ought to/should check our bags　5.can follow the guide　6.mustn’t leave the group　7.might visit the science lab　8.could prepare some questions　9.should write down our feelings and thoughts　10.can help us learn Ⅳ. 【文章大意】 本文是一篇说明文。本文阐述的是一种诱饵效应:当我们在做出选择时,受大脑分配价值方式的影响,在有更多选择的时候,我们会被最接近劣势的选项所吸引。 1.D　推理判断题。根据第二段“Actually, there’s a good chance that the marketing department purposely priced the medium soda as a decoy (诱饵), making you more likely to buy the large soda rather than the small.”可知,商店提供中杯苏打水是为了引导消费者购买更高利润的大杯苏打水,也就是为了赚更多的钱,故选D。 2.D　推理判断题。根据第三段的“Ariely ran an experiment and found that when only the two ‘real’ choices were offered, more people chose the less-expensive digital subscription. However, the bad option increased people’s likelihood of selecting the expensive print plus digital option.”可知,实验结果表明,这种促销方式见效了。故选D。 3.C　推理判断题。根据文章首段讲述的消费者在面对消费选择时的最终选择结果,以及Dan Ariely所做的实验和最后一段中的“Marketing professors call it the decoy effect, which is certainly easier to remember.”可知,文章所涉及的信息都与消费者的消费选择和市场营销策略有关系,由此可推断,文章很有可能出现在与消费者相关的网站上,因此可能在消费者和金钱网站上看到这篇文章。故选C。 4.B　细节理解题。根据倒数第二段中的“However, the bad option increased people’s likelihood of selecting the expensive print plus digital option.”和最后一段中的“Value is rarely absolute; rather, we decide an object’s value relative to other choices. If more options are introduced, the value equation (方程) changes.”(价值很少是绝对的;相反,我们确定一件物品的价值时会对比其他的选择。如果引入更多选项,则价值方程会发生变化。)可知,我们通常通过与其他选择进行比较来评估产品的价值。 故选B。 Ⅴ.【文章大意】 本文是一篇说明文。文章主要介绍了如何通过不花钱的挑战来省钱。 1.F　根据上文“The less you spend, the more you save. It sounds simple in theory, but in practice, it’s much more complicated. Spending is built into our daily habits, which sometimes can get us addicted to buying stuff.”以及下文“It’s kind of like a crash diet, but in a good way!”可知,上文提到了存钱实际上复杂得多,因为花钱是习惯,由此推测本句主要说明了省钱的另一种方式。F选项“有时候最好的办法是冻结开支。”符合语境,承上启下,故选F。 2.B　根据本段内容“Despite the name, a no-spend challenge doesn’t mean you sit on your hands and spend no money whatsoever. After all, you don’t want to fall behind on your bills, and there are some necessities you simply can’t do without. The basic premise (前提) of a no-spend challenge is to cut out non-essential spending for a certain amount of time. It could be for a week, a month or even an entire year.”可知,本段主要解释了什么是“不花钱挑战”,即“不花钱挑战”的定义。B选项“什么是不花钱挑战?”符合语境,故选B。 3.A　根据上文可知,上文主要说明了基本的开支是可以接受的,但是额外的开支不可以。A选项“决定可接受的采购。”符合语境,故选A。 4.G　根据下文“You can use the extra money you normally would have spent to build up your emergency fund.”可知,下文提到了节约下来的钱可以建立应急基金,由此推测不花钱挑战带来了经济状况的改善。G选项“不花钱挑战可以改善你的财务状况。”符合语境,故选G。 5.E　根据上文“While no-spend challenges are designed to be temporary, you can always extend your challenge.”可知,上文建议延长该挑战的时间,由此推测此处建议采取这种生活方式来省钱。E选项“为什么不把它看作是生活方式的改变呢?”符合语境,故选E。 Ⅵ.【文章大意】 本文是一篇说明文。文章主要介绍了青海省三江源地区——长江、黄河和澜沧江三大河流的发源地,其被誉为 “中国的水塔”。文章详细阐释了三江源地区在维系大面积水资源供应中的重要作用,并介绍了三江源国家公园的建设背景、面积规模、保护成效及其对游客的吸引力。 1.to　考查固定搭配。be home to为固定短语,意为“……的所在地”。故填to。 2.and　考查连词。空前twenty-five percent of the total water volume of the Yangtze River, 49 percent of the Yellow River和空后15 percent of the Lancang River之间为并列关系,用and连接。故填and。 3.a　考查冠词。空处修饰名词role,表示泛指,用不定冠词修饰,空后crucial的起始音为辅音音素。故填a。 4.importance　考查名词。空处作主语,用名词形式importance,意为“重要性”,不可数。故填importance。 5.Located　考查非谓语动词。此处为非谓语动词作状语;主语Sanjiangyuan National Park和动词locate之间为逻辑上的被动关系,应用过去分词形式;出现在句首,首字母大写。故填Located。 6.has witnessed　考查动词时态、语态和主谓一致。根据over the years可知,从句时态为现在完成时;主语that指代先行词project,为单数,和动词witness之间为主动关系。故填has witnessed。 7.covering　考查非谓语动词。此处为非谓语动词作状语;project和动词cover之间为主动关系,用现在分词形式。故填covering。 8.Fortunately　考查副词。空处修饰整个句子,用副词fortunately作状语意为“幸运的是”,出现在句首,首字母大写。故填Fortunately。 9.its　考查代词。空处修饰名词beauty,用形容词性物主代词。故填its。 10.to protect　考查非谓语动词。空处作目的状语,用动词不定式形式。故填to protect。 Ⅶ.【文章大意】 本文是一篇记叙文。Max 临近 21 岁生日时,没有像往常一样索要支票或举办派对,而是让妈妈将钱捐赠给有需要的人。妈妈深受触动,取现购买苹果后,带着孩子给无家可归者、救济站排队的人送钱和苹果,在披萨店留下钱款给饥饿的人,并拜访了独居老妇。当晚,Max 观看了记录视频,决心让生日不仅成为收获的时刻,更成为给予的契机。 1.C　根据后文“…any check you will give me to help someone in need.”可知,此处指把支票捐赠出来帮助他人。故选C。 promote促进; serve服务; donate捐赠;accept接受。 2.D　根据上文“Then she took 21 $10 bills out of her…”可知,此处指去银行账户里取钱出来。故选D。 home家;campus校园;kitchen厨房;bank银行。 3.A　根据后文a man可知,此处指看到一个男人。故选A。 spot看到;recognize认可; shelter庇护;witness目击。 4.C　根据上文“…help someone in need.”可知,要帮助需要帮助的人,所以最有可能是无家可归的男人。故选C。mean刻薄的;cautious谨慎的; homeless无家可归的;generous慷慨的。 5.B　根据上文“…is my son Max’s 21st birthday, and he asked me to give a gift to someone to help him…”可知,Max让妈妈送礼物给别人来一起庆祝他的生日。故选B。count计算;celebrate庆祝;survive幸存; congratulate祝贺。 6.C　根据后文the man a $10 bill and an apple可知,此处指递给那个人钞票和苹果。故选C。head前往;transfer转移;hand递给;deliver递送。 7.C　根据后文“…‘Happy birthday, Max!’”可知,得到帮助的男人微笑着对着镜头宣布:“生日快乐,Max!”故选C。 assure使确信; sigh叹息;announce宣布;write写。 8.A　根据上文“…help someone in need.”以及后文their gifts to men and women可知,此处指把礼物送给他人。故选A。 give away赠送;get across使理解; hand in提交; break down出故障。 9.D　根据上文their gifts to men and women waiting in可知,在救济站人们应该是排队等待,此处为短语in line,意为“排队”。故选D。 style风格;shape形状; vain徒劳的; line队伍。 10.B　根据后文“…$50 and told the owners to feed the…”可知,Andrea留下50美元让披萨店老板给他人提供食物。故选B。fetch取来;leave留下; combine结合;take带走。 11.D　根据上文“At a pizza parlour…”以及他们是在做善事可知,在披萨店应该是给饥饿的人提供食物。故选D。nervous紧张的;disappointed失望的; curious好奇的; hungry饥饿的。 12.D　此处表示剩下的10美元钞票和苹果。故选D。 limitless无限制的;casual随便的; common共同的;remaining剩下的。 13.A　根据后文her laughter or her tears可知,这位独居的老妇人无法控制自己的笑声和眼泪。故选A。contain控制,包含; judge判断; explain解释;interrupt打断。 14.B　根据上文“…her laughter or her tears, she faced the camera…”可知,老太太又哭又笑,最终面对镜头祝Max生日快乐。故选B。definitely肯定; eventually最后;incredibly难以置信地;remotely遥远地。 15.A　根据上文“She passed a video camera to Max’s brother Charlie.”可知,此处指看了录制的视频。故选A。video视频;website网站;diary日记; blog博客。 1 学科网（北京）股份有限公司 $