人教版（2019）选择性必修第一册Unit 5 Working the Land 考点清单学案（含答案）
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Unit 5 Working the Land考点清单
学习目标整合
language competence To improve listening, speaking, reading and writing abilities; To learn and understand some new word and expressions; To study and master the structure and usage of subject clause; To learn the structure and language features of an argumentative essay.
cultural awareness To understand the life story and achievements of agricultural scientist Yuan Longping; To understand the significance of agricultural innovation to alleviate the world hunger problem; To cultivate the good habit of cherishing and saving the grain; To understand the spirit of innovation and dedication; To cultivate cultural awareness and enhance cultural confidence.
thinking quality To understand and analyze the structure of the passage; To infer the meaning of words and expressions in the passage; To identify and analyze the grammar rules of subject clause; To improve independent thinking and problem-solving skills; To improve critical thinking and creative thinking.
learning ability To master effective learning methods and develop good study habits; To improve independent learning, cooperative learning and inquiry-based learning abilities; To improve learning strategies, such as effective note-taking; To learn some communication strategies, such as clarification and paraphrasing; To enhance cooperation ability by working together with partners.
思维导图回顾知识
重难知识易混易错
主语从句
一、定义
主语从句是名词性从句的一种, 在复合句中作主语, 相当于名词。主语从句的位置可以在句首, 也可以用it作形式主语, 主语从句放在后面。
二、主语从句的引导词
1. 连词that、whether, 在主语从句中不充当任何成分, 只起连接作用, 不可省略, 其中that没有词义, whether表示“是否”, 但是不能换成if。
2. 连接代词what、who、which, 在主语从句中充当主语、宾语、表语, 不可省略。
3. 连接副词when、where、how、why, 在主语从句中作状语, 分别表示时间、地点、方式、原因等, 不可省略。
另外, wh-+ever, 如whoever、whatever、whichever等也可引导主语从句。在句中充当主语、宾语、表语等, 不可省略。
三、it作形式主语的主语从句
在主语从句中如果主语太长, 宾语或表语又太短, 为了避免头重脚轻, 保持句子平衡, 通常会采用it作形式主语, 真正的主语从句放在后面。
常见的使用it作形式主语的结构:
It is said/reported/believed/well known that. . .
It is a pity that. . .
It is probable that. . .
It happened that. . .
It is no wonder that. . . . . .
四、主语从句的语序时态问题
主语从句和其他名词性从句一样必须使用陈述语序, 尤其是当主语从句是疑问词引导的时候, 主语从句的语序仍须使用陈述语序。
Who/Whom he will go to Beijing with remains unknown.
他将和谁一起去北京还不知道。
主语从句的时态根据具体语境来确定, 尤其是当when引导主语从句的时候, 有些同学会和when时间状语从句混淆而误用现在时表将来。
When he will come back is still unclear.
他什么时候回来还不清楚。
五、主语从句的主谓一致
主语从句作主语相当于名词, 和非谓语动词的动词-ing形式或者不定式作主语一样看作单数, 句子谓语应该使用单数形式。
That you don’t like him is none of my business.
你不喜欢他不关我的事。
What the doctors really doubt is whether my mother will recover from the serious disease soon.
医生怀疑的是我的妈妈是否不久就能从这场重病中恢复过来。
练习：
1. Not only our country but also the rest of the countries_______ (be) greatly influenced by our tea-related customs.
2. Now, the country is still recovering from one of the worst economic _______ (crisis).
3. The heat is the _______ (character) weather of the summer in my hometown while in winter it is usually quite cold.
4. Although opposed _______ (intense) by many fishermen, the ban on fishing was enforced by the local government eventually.
5. After ice was discovered on Mars, some scientists made the _______ (assume) that living things might exist on it.
6. Gas and oil _____ (consume) always increases in cold weather.
7. The radio play was so _____ (convince) that many people thought aliens had landed on the earth.
8. It is amazing to us_______ ancient craftsmen were able to carve such a giant statue.
9. _____ did this will sooner or later be caught and punished.
10. ___________ surprised us most was that her works of art soon became famous and were on display in the British Museum.
答案：
1.答案:are
解析：考查主谓一致和时态。分析句子结构可知,此处Not only... but also…,连接两个并列成分作主语此时谓语动词要遵循"就近一致"原则,即要和 but also后的主语在人称和数上保持一致。but also 后的主语为"the rest of the countries",谓语动词应用复数;由语境可知,此处在叙述一般事实,应用一般现在时,故填 are。
2.答案：crises
解析：考查名词复数。根据空前的"one of the worst economic"可知,空处应用所给名词的复数形式。故填 crises。
3.答案：characteristic
解析：考查词形转换。句意:在我的家乡,高温是夏季的典型天气;而在冬天,天气通常相当寒冷。根据空前的 the 和空后的名词 weather并结合句意可知,空处应填形容词修饰 weather,意为"典型的,独特的",故填 characteristic。
4.答案： intensely
解析：考查词形转换。句意:尽管遭到许多渔民的强烈反对,这项禁渔令最终还是被当地政府强制执行了。分析句子结构可知,空处应用副词修饰动词,故填intensely。
5.答案：assumption
解析：考查词形转换。句意:在火星上发现冰后,一些科学家设想火星上可能有生物存在。根据空前的 the 并分析句子结构可知,空处应填名词,that 引导的同位语从句解释说明空处的内容;make an assumption意为"作出假设"。
6.答案：consumption
解析：考查名词。设空处在句中作主语,其前面的Gas和oil是名词作定语,所以应填名词,故填consumption。Gas and oil consumption意为“燃气和燃油的消耗量”。
7.答案：convincing
解析：考查形容词。设空处作表语,此处指“这个广播剧如此令人信服”,应用-ing结尾的形容词作表语,表示事物的性质或特征,故填convincing,意为“令人信服的”。
8.答案: that
解析：句意:令我们惊讶的是,古代的工匠能够雕刻出如此巨大的雕像。分析句子结构可知,本句中的It为形式主语,空处引导的从句为真正的主语,因为从句意义完整,不缺成分,故应填that。
9.答案：Whoever
解析：考查连接代词。分析句子结构可知, “_____ did this”是一个主语从句,设空处是该主语从句的引导词,此处指“无论谁做了这件事,迟早会被抓住并受到惩罚”,设空处表示“无论谁”,且单词位于句首,首字母应大写,故填Whoever。
10.答案：What
解析：句意:最让我们吃惊的是她的艺术作品很快就出名了,并在大英博物馆展出。所填的词引导主语从句并在从句中作主语，所以填what。
核心素养对接高考
一、阅读理解
The first great agricultural revolution happened about 12,000 years ago, when humans settled on farms. The second, also recognized as the British Agricultural Revolution, took place first in England in the 17th and early 18th centuries. The third was the "green revolution" beginning in the mid-20thcentury, in which advances in fertilization, mechanization, and irrigation dramatically increased global food production. The fourth is likely to come from informatization, as digital technology and big data help farmers make better decisions and step up crop production.
Michael Stern, president and chief executive officer of the Climate Corporation, said that the ability to gather detailed information about farmers' fields, combined with advances in weather forecasts, computing power, and artificial intelligence, will change farming from a business that often reacts to the past to one that uses real-time data and weather forecasts to make more accurate decisions for the season to come.
Over the course of a growing season, farmers make 40 to 50 key decisions that affect сгор performance. Recent trends that have swept other areas of society—such as cheap data storage and dramatic increases in computing power—have the potential to change the farm.
Stern offered the example of a farmer who delayed the regular fall fertilization of his fields after being informed of a coming storm. That decision reduced fertilizer runoff, kept fertilizer on the fields, and helped control the farmer's costs. As data is gathered season after season, computer models will help farmers optimize production
Remote sensing (遥感) is another way that modern technology can help farmers know what's going on in their fields. Many farmers drive around to monitor growth and watch for pests and diseases. But these surveys are typically random and don't cover more than 2 percent of a field. Remote sensing can provide accurate data that covers an entire field and provide specific recommendations based on the situation in the stricken area.
1. What may the fourth agricultural revolution help farmers do in the future
A. Deal with big data.
B. Grasp the computing ability.
C. Make reasonable decisions.
D. Develop business potentials.
2. Why did the author give an example in Paragraph 4 according to the text
A. To confirm the coming of a storm.
B. To explain the reason of fertilizer runoff.
C. To stress the importance of fertilization.
D. To show the use of computer models.
3. What is the author's attitude to the coming agricultural revolution
A. Opposed. B. Objective. C. Positive. D. Unclear.
二、七选五
In 2019,Gotham Greens opened its 9,300-square-metreBaltimore farm on the former site of Bethlehem Steel, which once was the largest steel-manufacturing plant in the world.①_______It aimed to repurpose unused rooftop spaces and abandoned factories for food production.
Urban populations are projected to increase by 2.5 billion by 2050. ②_______But despite the rise in city-based farms, there's still a lot we don't know about them, including the economic and environmental costs.
Florian Payen, an environmental scientist, and his colleagues looked at previous studies done in 53countries where crops were grown in different urban environments, including "grey" spaces such as rooftops, and by using different growing methods. They found that yields of urban crops were often the same as those from conventional farms. Just as importantly, they revealed the types of crops most commonly grown and the most effective growing methods. ③_______
It's known that one of the benefits of urban farming is a reduction in food miles. ④_______In one study, researchers analyzed the carbon footprint of different vegetables grown in greenhouses in Canada and that of the imported vegetables from the USA. They found that it was less carbon-intensive to import the crops because of the high energy input required to grow them locally in greenhouses," says Payen.
⑤_______Urban agriculture has the potential to enhance local ecosystems, attracting pollinators such as bees and birds that boost urban biodiversity while providing more green spaces to help keep cities cool and counter(抵消) the urban heat island effect.
A. But there are other benefits.
B. Urban agriculture can help feed our growing cities.
C. I's well worth investing in rooftop gardens or greenhouses.
D. The farm was one of the farms the company had set up in cities.
E. Urban agriculture in any given city can take lots of different forms.
F. However, urban-grown crops aren't a more environmentally friendly option.
G. Surprisingly, they found little difference in overall yields between indoor and outdoor spaces.
三、书面表达
最近你班在英语课上就"人类该不该把动物产品用于吃穿"这一话题展开了激烈的讨论。请你根据下表内容写一篇英语短文来介绍讨论的情况，同时阚明你的观点。
赞同 1. 动物产品可以提供各种营养物质； 2. 动物的毛皮制作的衣服更保暖、更耐穿。
反对 1. 动物和人是平等的； 2. 猎杀动物会影响生物多样性。
个人观点 ……
注意：
1. 写作词数应为80左右；
2. 可以适当增加细节，以使行文连贯。
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
答案以及解析
一、阅读理解
1.答案：C
解析：考查细节理解。根据第一段中的"The fourth is likely to come from informatization, as digital technology and big data help farmers make better decisions and step up crop production"可知,第四次农业革命可以帮助农民作出合理的决定,故选C。
2.答案：D
解析：考查推理判断。根据第二、第三段内容可知,计算机模型的应用能帮助农民作出更准确的决定,接着在第四段中 Stermn提供了一个例子,即一位农民在得知暴风雨即将来临后,推迟了他的农田的常规秋季施肥。这一决定减少了肥料流失,使肥料留在田里,帮助控制该农民的成本。由此可推知,作者用这个具体事例是为了展示计算机模型是如何帮助农民作出更准确的决定的,即计算机模型的应用。故选D项。
3.答案：C
解析：考查观点态度。根据第一段中的"The fourth is likely to come from informatization, as digital technology and big data help farmers make better decisions and step up crop production"以及下文的介绍可知,作者对即将到来的第四次农业革命持积极的态度。故选C项。
二、七选五
答案: DBCFA
解析：①联系上下文可知,空前提到了新开设的巴尔的摩农场,空后介绍了它的目的,故D项"这个农场是这个公司在城市建立的农场之一"符合语境。空后的It指代D项中的"The farm", D项中的"The farm"又指代空前的" Baltimore farm",故选D项。
②根据空前的"Urban populations are projected to increase by 2.5 billion by 2050"和空后的" But despite the rise in city-based farms"可知,空前提到城市人口预计增加,空后又提到了城市农场数量的增加,B项"城市农业可以帮助养活我们不断壮大的城市"符合语境。故选B项。
③空前提到环境科学家们研究发现,城市农作物的产量通常与传统农作物的相同,G项"令人惊讶的是,他们发现室内和室外空间的总产量几乎没有差异"符合题意,也是在讲他们的发现,承接上文。故选G项。
④空前提到城市农业的好处,空后又说明了其需要很高的能量输入,F项"然而,城市种植的农作物并不是一个更环保的选择"符俞语境,与空前形成转折,同时引出下文内容,故选F项。
⑤空后提到了城市农业带来的多个好处,故A项"但也有其他好处"适合放在句首,作为本段的主题句,且承接上段末尾提到的城市农业的弊端。故选A项。A项中的"other benefits"照应上一段段首的"one of the benefits"。
三、书面表达
答案：
Recently in our English class we had a discussion about whether we should use animal products for food and clothing. Opinions vary from person to person.
Some students are in favor of using animal products. In their opinion, meat provides a variety of nutrients that are difficult to obtain from vegetables and fruit. What's more, clothes made of fur are warmer and more durable. However, the others hold a different idea. They think that animals are equal to man. Besides, hunting animals is cruel and it may affect biodiversity.
As far as I'm concerned, we human beings shouldn't kill animals only for our needs. We should protect them and use animal products reasonably.
学习目标整合
language competence To improve listening, speaking, reading and writing abilities; To learn and understand some new word and expressions; To study and master the structure and usage of subject clause; To learn the structure and language features of an argumentative essay.
cultural awareness To understand the life story and achievements of agricultural scientist Yuan Longping; To understand the significance of agricultural innovation to alleviate the world hunger problem; To cultivate the good habit of cherishing and saving the grain; To understand the spirit of innovation and dedication; To cultivate cultural awareness and enhance cultural confidence.
thinking quality To understand and analyze the structure of the passage; To infer the meaning of words and expressions in the passage; To identify and analyze the grammar rules of subject clause; To improve independent thinking and problem-solving skills; To improve critical thinking and creative thinking.
learning ability To master effective learning methods and develop good study habits; To improve independent learning, cooperative learning and inquiry-based learning abilities; To improve learning strategies, such as effective note-taking; To learn some communication strategies, such as clarification and paraphrasing; To enhance cooperation ability by working together with partners.
思维导图回顾知识
重难知识易混易错
主语从句
一、定义
主语从句是名词性从句的一种, 在复合句中作主语, 相当于名词。主语从句的位置可以在句首, 也可以用it作形式主语, 主语从句放在后面。
二、主语从句的引导词
1. 连词that、whether, 在主语从句中不充当任何成分, 只起连接作用, 不可省略, 其中that没有词义, whether表示“是否”, 但是不能换成if。
2. 连接代词what、who、which, 在主语从句中充当主语、宾语、表语, 不可省略。
3. 连接副词when、where、how、why, 在主语从句中作状语, 分别表示时间、地点、方式、原因等, 不可省略。
另外, wh-+ever, 如whoever、whatever、whichever等也可引导主语从句。在句中充当主语、宾语、表语等, 不可省略。
三、it作形式主语的主语从句
在主语从句中如果主语太长, 宾语或表语又太短, 为了避免头重脚轻, 保持句子平衡, 通常会采用it作形式主语, 真正的主语从句放在后面。
常见的使用it作形式主语的结构:
It is said/reported/believed/well known that. . .
It is a pity that. . .
It is probable that. . .
It happened that. . .
It is no wonder that. . . . . .
四、主语从句的语序时态问题
主语从句和其他名词性从句一样必须使用陈述语序, 尤其是当主语从句是疑问词引导的时候, 主语从句的语序仍须使用陈述语序。
Who/Whom he will go to Beijing with remains unknown.
他将和谁一起去北京还不知道。
主语从句的时态根据具体语境来确定, 尤其是当when引导主语从句的时候, 有些同学会和when时间状语从句混淆而误用现在时表将来。
When he will come back is still unclear.
他什么时候回来还不清楚。
五、主语从句的主谓一致
主语从句作主语相当于名词, 和非谓语动词的动词-ing形式或者不定式作主语一样看作单数, 句子谓语应该使用单数形式。
That you don’t like him is none of my business.
你不喜欢他不关我的事。
What the doctors really doubt is whether my mother will recover from the serious disease soon.
医生怀疑的是我的妈妈是否不久就能从这场重病中恢复过来。
练习：
1. Not only our country but also the rest of the countries_______ (be) greatly influenced by our tea-related customs.
2. Now, the country is still recovering from one of the worst economic _______ (crisis).
3. The heat is the _______ (character) weather of the summer in my hometown while in winter it is usually quite cold.
4. Although opposed _______ (intense) by many fishermen, the ban on fishing was enforced by the local government eventually.
5. After ice was discovered on Mars, some scientists made the _______ (assume) that living things might exist on it.
6. Gas and oil _____ (consume) always increases in cold weather.
7. The radio play was so _____ (convince) that many people thought aliens had landed on the earth.
8. It is amazing to us_______ ancient craftsmen were able to carve such a giant statue.
9. _____ did this will sooner or later be caught and punished.
10. ___________ surprised us most was that her works of art soon became famous and were on display in the British Museum.
答案：
1.答案:are
解析：考查主谓一致和时态。分析句子结构可知,此处Not only... but also…,连接两个并列成分作主语此时谓语动词要遵循"就近一致"原则,即要和 but also后的主语在人称和数上保持一致。but also 后的主语为"the rest of the countries",谓语动词应用复数;由语境可知,此处在叙述一般事实,应用一般现在时,故填 are。
2.答案：crises
解析：考查名词复数。根据空前的"one of the worst economic"可知,空处应用所给名词的复数形式。故填 crises。
3.答案：characteristic
解析：考查词形转换。句意:在我的家乡,高温是夏季的典型天气;而在冬天,天气通常相当寒冷。根据空前的 the 和空后的名词 weather并结合句意可知,空处应填形容词修饰 weather,意为"典型的,独特的",故填 characteristic。
4.答案： intensely
解析：考查词形转换。句意:尽管遭到许多渔民的强烈反对,这项禁渔令最终还是被当地政府强制执行了。分析句子结构可知,空处应用副词修饰动词,故填intensely。
5.答案：assumption
解析：考查词形转换。句意:在火星上发现冰后,一些科学家设想火星上可能有生物存在。根据空前的 the 并分析句子结构可知,空处应填名词,that 引导的同位语从句解释说明空处的内容;make an assumption意为"作出假设"。
6.答案：consumption
解析：考查名词。设空处在句中作主语,其前面的Gas和oil是名词作定语,所以应填名词,故填consumption。Gas and oil consumption意为“燃气和燃油的消耗量”。
7.答案：convincing
解析：考查形容词。设空处作表语,此处指“这个广播剧如此令人信服”,应用-ing结尾的形容词作表语,表示事物的性质或特征,故填convincing,意为“令人信服的”。
8.答案: that
解析：句意:令我们惊讶的是,古代的工匠能够雕刻出如此巨大的雕像。分析句子结构可知,本句中的It为形式主语,空处引导的从句为真正的主语,因为从句意义完整,不缺成分,故应填that。
9.答案：Whoever
解析：考查连接代词。分析句子结构可知, “_____ did this”是一个主语从句,设空处是该主语从句的引导词,此处指“无论谁做了这件事,迟早会被抓住并受到惩罚”,设空处表示“无论谁”,且单词位于句首,首字母应大写,故填Whoever。
10.答案：What
解析：句意:最让我们吃惊的是她的艺术作品很快就出名了,并在大英博物馆展出。所填的词引导主语从句并在从句中作主语，所以填what。
核心素养对接高考
一、阅读理解
The first great agricultural revolution happened about 12,000 years ago, when humans settled on farms. The second, also recognized as the British Agricultural Revolution, took place first in England in the 17th and early 18th centuries. The third was the "green revolution" beginning in the mid-20thcentury, in which advances in fertilization, mechanization, and irrigation dramatically increased global food production. The fourth is likely to come from informatization, as digital technology and big data help farmers make better decisions and step up crop production.
Michael Stern, president and chief executive officer of the Climate Corporation, said that the ability to gather detailed information about farmers' fields, combined with advances in weather forecasts, computing power, and artificial intelligence, will change farming from a business that often reacts to the past to one that uses real-time data and weather forecasts to make more accurate decisions for the season to come.
Over the course of a growing season, farmers make 40 to 50 key decisions that affect сгор performance. Recent trends that have swept other areas of society—such as cheap data storage and dramatic increases in computing power—have the potential to change the farm.
Stern offered the example of a farmer who delayed the regular fall fertilization of his fields after being informed of a coming storm. That decision reduced fertilizer runoff, kept fertilizer on the fields, and helped control the farmer's costs. As data is gathered season after season, computer models will help farmers optimize production
Remote sensing (遥感) is another way that modern technology can help farmers know what's going on in their fields. Many farmers drive around to monitor growth and watch for pests and diseases. But these surveys are typically random and don't cover more than 2 percent of a field. Remote sensing can provide accurate data that covers an entire field and provide specific recommendations based on the situation in the stricken area.
1. What may the fourth agricultural revolution help farmers do in the future
A. Deal with big data.
B. Grasp the computing ability.
C. Make reasonable decisions.
D. Develop business potentials.
2. Why did the author give an example in Paragraph 4 according to the text
A. To confirm the coming of a storm.
B. To explain the reason of fertilizer runoff.
C. To stress the importance of fertilization.
D. To show the use of computer models.
3. What is the author's attitude to the coming agricultural revolution
A. Opposed. B. Objective. C. Positive. D. Unclear.
二、七选五
In 2019,Gotham Greens opened its 9,300-square-metreBaltimore farm on the former site of Bethlehem Steel, which once was the largest steel-manufacturing plant in the world.①_______It aimed to repurpose unused rooftop spaces and abandoned factories for food production.
Urban populations are projected to increase by 2.5 billion by 2050. ②_______But despite the rise in city-based farms, there's still a lot we don't know about them, including the economic and environmental costs.
Florian Payen, an environmental scientist, and his colleagues looked at previous studies done in 53countries where crops were grown in different urban environments, including "grey" spaces such as rooftops, and by using different growing methods. They found that yields of urban crops were often the same as those from conventional farms. Just as importantly, they revealed the types of crops most commonly grown and the most effective growing methods. ③_______
It's known that one of the benefits of urban farming is a reduction in food miles. ④_______In one study, researchers analyzed the carbon footprint of different vegetables grown in greenhouses in Canada and that of the imported vegetables from the USA. They found that it was less carbon-intensive to import the crops because of the high energy input required to grow them locally in greenhouses," says Payen.
⑤_______Urban agriculture has the potential to enhance local ecosystems, attracting pollinators such as bees and birds that boost urban biodiversity while providing more green spaces to help keep cities cool and counter(抵消) the urban heat island effect.
A. But there are other benefits.
B. Urban agriculture can help feed our growing cities.
C. I's well worth investing in rooftop gardens or greenhouses.
D. The farm was one of the farms the company had set up in cities.
E. Urban agriculture in any given city can take lots of different forms.
F. However, urban-grown crops aren't a more environmentally friendly option.
G. Surprisingly, they found little difference in overall yields between indoor and outdoor spaces.
三、书面表达
最近你班在英语课上就"人类该不该把动物产品用于吃穿"这一话题展开了激烈的讨论。请你根据下表内容写一篇英语短文来介绍讨论的情况，同时阚明你的观点。
赞同 1. 动物产品可以提供各种营养物质； 2. 动物的毛皮制作的衣服更保暖、更耐穿。
反对 1. 动物和人是平等的； 2. 猎杀动物会影响生物多样性。
个人观点 ……
注意：
1. 写作词数应为80左右；
2. 可以适当增加细节，以使行文连贯。
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答案以及解析
一、阅读理解
1.答案：C
解析：考查细节理解。根据第一段中的"The fourth is likely to come from informatization, as digital technology and big data help farmers make better decisions and step up crop production"可知,第四次农业革命可以帮助农民作出合理的决定,故选C。
2.答案：D
解析：考查推理判断。根据第二、第三段内容可知,计算机模型的应用能帮助农民作出更准确的决定,接着在第四段中 Stermn提供了一个例子,即一位农民在得知暴风雨即将来临后,推迟了他的农田的常规秋季施肥。这一决定减少了肥料流失,使肥料留在田里,帮助控制该农民的成本。由此可推知,作者用这个具体事例是为了展示计算机模型是如何帮助农民作出更准确的决定的,即计算机模型的应用。故选D项。
3.答案：C
解析：考查观点态度。根据第一段中的"The fourth is likely to come from informatization, as digital technology and big data help farmers make better decisions and step up crop production"以及下文的介绍可知,作者对即将到来的第四次农业革命持积极的态度。故选C项。
二、七选五
答案: DBCFA
解析：①联系上下文可知,空前提到了新开设的巴尔的摩农场,空后介绍了它的目的,故D项"这个农场是这个公司在城市建立的农场之一"符合语境。空后的It指代D项中的"The farm", D项中的"The farm"又指代空前的" Baltimore farm",故选D项。
②根据空前的"Urban populations are projected to increase by 2.5 billion by 2050"和空后的" But despite the rise in city-based farms"可知,空前提到城市人口预计增加,空后又提到了城市农场数量的增加,B项"城市农业可以帮助养活我们不断壮大的城市"符合语境。故选B项。
③空前提到环境科学家们研究发现,城市农作物的产量通常与传统农作物的相同,G项"令人惊讶的是,他们发现室内和室外空间的总产量几乎没有差异"符合题意,也是在讲他们的发现,承接上文。故选G项。
④空前提到城市农业的好处,空后又说明了其需要很高的能量输入,F项"然而,城市种植的农作物并不是一个更环保的选择"符俞语境,与空前形成转折,同时引出下文内容,故选F项。
⑤空后提到了城市农业带来的多个好处,故A项"但也有其他好处"适合放在句首,作为本段的主题句,且承接上段末尾提到的城市农业的弊端。故选A项。A项中的"other benefits"照应上一段段首的"one of the benefits"。
三、书面表达
答案：
Recently in our English class we had a discussion about whether we should use animal products for food and clothing. Opinions vary from person to person.
Some students are in favor of using animal products. In their opinion, meat provides a variety of nutrients that are difficult to obtain from vegetables and fruit. What's more, clothes made of fur are warmer and more durable. However, the others hold a different idea. They think that animals are equal to man. Besides, hunting animals is cruel and it may affect biodiversity.
As far as I'm concerned, we human beings shouldn't kill animals only for our needs. We should protect them and use animal products reasonably.