2020-2021学年新教材高中英语 课时作业23 Unit 5 Working the Land Discover Useful Structures（含解析）新人教版选择性必修第一册.doc

1、Unit 5 Working the Land.阅读理解Skyscrapers are the symbol of Urban life.City people are used to seeing tall buildings and apartments. Farms，on the other hand，are associated with rural(农村的)life.However，there are experts who think skyscrapers should become farms to meet the increasing food needs.By the m

2、iddle of this century, some scientists suggest，almost 80% of the earths population could live in cities. In addition，the population could increase to 9.1 billion people during that time yet the amount of land available for farming will be the same.If current farming practices dont change，we will nee

3、d an area of new land to produce enough food for the planet.Vertical farms, where urban farmers could grow crops in environmentally friendly skyscrapers, could be the solution. In spite of concerns over high costs, experts want to make it a reality and use these skyscrapers to grow crops.Vertical fa

4、rms would have many advantages, supporters say. Unlike traditional farming, vertical farming could be free of chemicals and diseases. Besides, crops would not suffer from problems like flooding. Finally，vertical farms would reduce the cost and negative effects of transporting food over long distance

5、s.Some argue that although crops growing in a tall glass building would get natural sunlight during the day，it wouldnt be enough. For this reason，vertical farms would need additional light sources(来源), such as artificial light.Another way of growing fresh food is to build urban farms on rooftops. Th

6、is more practical approach may be more achievable than the idea of farms in skyscrapers, researchers suggest. Experts agree that innovative(革新的)farming practices are needed to support the need for more food at affordable costs, both to the farmer and to the consumer，but the best ideas could be yet t

7、o come.本文属于说明文，为了解决日益增长的食物需求，专家介绍了两种在高楼大厦可以发展的农业，垂直农业和屋顶农场。1What primary problem could vertical farming settle?APoor state of rural life.BShortage of food supply.CHigh cost for transporting crops.DEnvironmental pollution by transitional farming.答案：B解析：推理判断题。根据第三段Vertical farms, where urban farmers c

8、ould grow crops in environmentally friendly skyscrapers, could be the solution.可知，发展垂直农业可能是解决食物紧缺的方法，故选B。2What is the advantage of vertical farming?AIt can produce organic food. BIt requires little care.CIt can benefit transport industry. DIt needs very low cost.答案：A解析：细节理解题。根据第四段Unlike traditional

9、farming, vertical farming could be free of chemicals and diseases.可知，垂直农业不受化学物品和病虫害的影响，故可以生产有机食品，故选A。3What is a big challenge to make vertical farming a reality?AFarmable land. BCrop diseases.CLight sources.DClimate conditions.答案：C解析：细节理解题。根据倒数第二段Some argue that although crops growing in a tall glas

10、s building would get natural sunlight during the day，it wouldnt be enough.可知，垂直农业最大的问题就是光线不够，需要额外的光源，故选C。4What can be the best title of the test?AFuture Food Needs BSymbol of Urban LifeCFarming on Rooftops DFarms of the Future答案：D解析：标题归纳题。为了解决日益增长的食物需求，专家介绍了两种在高楼大厦可以发展的农业，垂直农业和屋顶农场，故主要介绍未来的农业类型，故选D。

11、.七选五How to Pass Final ExamsIf youre a student, exams are an important part not only of any class, but also your final grade. Preparing throughout the semester is the most effective way to do well on your final exams. _1_However, there are things you can do to help you pass your exams.Attend class re

12、gularly. You cannot successfully pass a class or exams if you do not attend the class. This will allow you to hear important lectures and take notes. It also helps you understand your readings and assignments. _2_Teachers usually discuss what is on an exam during classes. If you arent in class, you

13、cant get this important information.Start studying early. _3_A month before the test date is a good time to begin your preparations. You can study simply by reviewing your notes for 2030 minutes a day. If you have questions, ask the teacher._4_ Practice exams are a highly effective way to study for

14、tests. They will help you relax and point out any weak areas you may have going in to the final exam date. If you test yourself just twice, you will remember 75%80% of the material two weeks later. With no practice tests, that figure is just 20%.Reduce your anxiety. You wouldnt have anxiety if you w

15、erent worried about passing your final exam. However, research shows that anxiety blocks your ability to focus, which can really put a damper (抑制)on your studying and test performance. _5_ADo a practice exam.BUnderstand how you can study best.CEvery individual learns differently.DMost exams are base

16、d on what happens in class.EIt is never too early to start studying for a final exam.FBasically, theres just no shortcut for knowing the material.GTry some relaxation techniques when youre feeling worried.本文属于说明文，主要描述了几个可以帮你通过期末考试的建议。1F解析：根据上文Preparing throughout the semester is the most effective w

17、ay to do well on your final exams.(准备整个学期是在期末考试中取得好成绩的最有效的方法。)可知要想取得好成绩是没有捷径的。故F选项符合语境。2D解析：根据下文Teachers usually discuss what is on an exam during classes. If you arent in class, you cant get this important information.(老师通常在课堂上讨论考试内容。如果你不上课，你就得不到这个重要的信息。)可知大多数考试都是基于课堂上发生的事情。故选D。3E解析：根据下文A month bef

18、ore the test date is a good time to begin your preparations.(考试前一个月是开始准备的好时候。)以及本段小标题Start studying early.(早点开始学习。)可知是强调为期末考试开始学习永远不嫌早。故选E。4A解析：根据下文Practice exams are a highly effective way to study for tests.(练习测验是一种非常有效的备考方法。)中practice exam可对应到A选项中Do a practice exam.(做一个练习测验)。故选A。5G解析：根据上文However,

19、 research shows that anxiety blocks your ability to focus, which can really put a damper (抑制) on your studying and test performance.(然而，研究表明，焦虑会阻碍你集中注意力，这真的会给你的学习和考试表现带来负面影响。)可知感到担忧时应该学会放松。故选G。.语法填空In much of Asia, especially the socalled “rice bowl” cultures of China, Japan, Korea, _1_ Vietnam, foo

20、d is usually eaten with chopsticks.Chopsticks are usually two long, thin pieces of wood or bamboo. They can also be made of plastic, animal bone or metal. Sometimes chopsticks are quite artistic. Truly elegant chopsticks might _2_ (make) of gold and silver with Chinese characters. Skilled workers al

21、so combine various hardwoods and metal _3_ (create) special designs.The Chinese have used chopsticks for five thousand years. People probably cooked their food in large pots, _4_ (use) twigs(树枝)to remove it. Over time, _5_ the population grew, people began cutting food into small pieces so it would

22、cook more quickly.Food in small pieces could be eaten easily with twigs which_6_(gradual) turned into chopsticks.Some people think that the great Chinese scholar Confucius，_7_ lived from roughly 551 to 479 BC, influenced the_8_ (develop) of chopsticks. Confucius believed knives would remind people o

23、f killings and _9_(be) too violent for use at the table.Chopsticks are not used everywhere in Asia. In India, for example, most people traditionally eat _10_ their hands.本文是说明文。文章主要从筷子使用的范围，制作筷子的方式和方法，筷子使用的历史及其发展等几方面来展开论述的。1and解析：考查并列连词。这里列举了一些亚洲的国家，它们是并列关系，故填and。2be_made解析：考查固定词组。句意：精美的筷子可能是由刻有汉字的金

24、或银制成的。be made of.由制成，情态动词后跟动词原形，故填be made。3to_create解析：考查不定式作目的状语。句意：技术娴熟的工人会把各种各样的硬质木材和金属结合起来，以创造出特殊风格的筷子。这里用不定式表目的，故填to create。4using解析：考查现在分词作伴随状语。句意：人们可能使用大锅煮食物，用树枝搅拌食物。use的逻辑主语是people，两者是主动关系，用现在分词表示伴随状况，故填using。5as/when解析：考查时间状语从句。句意：随着人口的增长，人们开始把食物切成小块，这样可以煮得快一点。这里是时间状语从句，用引导词as来引导，表示“随着”，符合语

25、境。when意为“当时候”，也符合语境，故填as/when。6gradually解析：考查副词。副词修饰动词或形容词，这里修饰动词短语turned into，故填gradually。7who解析：考查非限制性定语从句。句中有逗号，说明是非限制性定语从句，先行词是Confucius，定语从句缺少主语，且指人，故填who。8development解析：考查词性转换。the名词of.意为“的”，这里指“筷子的发展”，故填development。9were解析：考查时态。根据句意可知，这里指的是刀子因太暴力而不适合在餐桌上使用，believed后跟一个宾语从句，and连接了两个并列的谓语，主语knives是复数，根据时态和主谓一致的原则，这里应用were。10with解析：考查介词。句意：例如，在印度，大部分人还是用传统的吃饭方法用手拿。with表示具体工具的名词，表示“用”，故填with。