Unit 2 Saving the Earth
单元话题阅读理解练习
（2023·福建福州·福建省福州第十九中学校考一模）New Jersey Conservation
POSTER CONTEST 2023
“WE ALL NEED TREES”
Contest Sponsors:
The NJ Department of Agriculture, the NJ Association of Conservation Districts and your local Soil Conservation District
小词典：①conservation n.保护 ②illustrate v.说明 ③evaluate v.评估 ④category n.类别 ⑤soil n.土地 ⑥district n.行政区域 ⑦sponsor n.主办者 ⑧Department of Agriculture 农业部
1．What is the contest about ________
A．Trees. B．Air. C．Water. D．Food.
2．Who can enter the Conservation Poster Contest ________
A．Teachers. B．Students. C．Workers. D．Doctors.
3．The posters will be divided into ________ categories.
A．two B．three C．four D．five
4．If you win the first prize, you can get ________.
A．50 dollars B．100 dollars C．200 dollars D．250 dollars
5．Which of the following is TRUE ________
A．They will group the posters according to grade level.
B．They will group the posters according to the theme.
C．The NJ Department of Agriculture won’t take part in the event.
D．The local Soil Conservation District won’t join in the event.
（2023·福建泉州·统考三模）In China, each year we produce about 150 million tons of city waste according to a report. Where does the waste go People usually burn or bury (埋) it. On the other hand, we receive waste from some developed countries. We get useful materials from it. What about the useless part Still burned or buried. But is it a proper way
Waste pollutes the environment, harms people’s health and causes animals to die. It also gets in the way of green and sustainable development. We can’t make money at the cost of the environment. We should leave clean water and green mountains to our next generations (一代人).
China is getting really serious about waste now.
We are taking less waste from developed countries. From January 2018, China started to stop 24 kinds of waste coming into our country. And more laws and rules about dealing with waste have been made. Anyone who breaks the law will be punished.
China also tries to put waste into good use. One example is the waste electricity factories. They burn waste to make electricity in a green way. No harmful gases or water will get into the environment.
The Chinese government is encouraging people to do waste sorting. Cities like Shanghai, Chongqing and Beijing have their own sorting systems. More will join them soon. As President Xi Jinping said during a visit to Shanghai, waste sorting is a new fashion. More and more people are forming the habit of separating their waste.
6．The writer starts the passage by ________.
A．telling stories B．raising questions
C．giving suggestions D．comparing numbers
7．The underlined word “sustainable” in Paragraph 2 means “________” in Chinese.
A．可享受的 B．可持续的 C．可借鉴的 D．可复活的
8．From the passage, we know that ________.
A．the waste is useless
B．people won’t burn or bury waste any more
C．waste sorting starts to become popular in China
D．China stops getting any waste from developed countries
9．The structure of this passage may be ________.
A． B． C． D．
10．Which would be the best title for the passage
A．How to Deal With Waste B．How to Make Electricity
C．How to Do Waste Sorting D．How to Protect Environment
（2023·福建三明·统考一模）For most people, the simple, cheap and common bicycle is just a way of transportation. But the United Nations sees it as a useful tool to deal with climate change.
On March 15, the UN General Assembly passed a resolution(决议) suggesting bicycles as a tool for solving problems about climate change.
It calls on member countries to choose bicycles in public transportation systems. The more people choose bicycles instead of cars, the fewer greenhouse gas emissions(温室气体排放) will be produced. What’s more, it pays attention to bicycle-sharing services.
The resolution from the UN came at a time when climate change returned to the center of global(全球的) attention. On Feb. 28, the UN gave people a new report on climate change. It warns that the global average(平均的) temperature will rise by 1. 5℃ above pre-industrial(工业化前的) levels. More than 40 percent of the world’s population will be influenced by climate change.
The UN said transportation is the third-largest producer of carbon dioxide (CO2), a greenhouse gas that causes global warming. Choosing a bike over a car just once a day can reduce a person’s transportation carbon emissions by 67 percent according to a study from the University of Oxford.
The UN resolution could be seen as an acceptance of China’s 14 years’ hard work of bike sharing. More than 360 Chinese cities have bike-sharing systems that include nearly 20 million bicycles for an average of 47 million trips each day, said China’s Ministry of Transport. China’s bike-sharing systems can help reduce CO2 by 4. 8 million tons every year.
11．What’s the purpose of the UN passing the resolution about bicycles
A．To improve the quality of bicycles. B．To encourage people to ride a bike more often.
C．To produce more bicycles. D．To reduce the prices of bicycles.
12．The underlined word “It” in Paragraph 3 refers to “________”
A．The UN General Assembly B．The greenhouse gas
C．The bicycle D．The climate
13．What can we learn from the fourth paragraph
A．The world’s average temperature has risen by 1.5℃.
B．Riding a bike is the cheapest way to travel.
C．Transportation is the biggest cause of global warming.
D．The rising temperature will affect over 40 percent of humans.
14．What can we know about China’s bike sharing systems from the last paragraph
A．They need to improve the service in small cities.
B．They serve 47 million people per day.
C．They play an important part in protecting the environment.
D．They have reduced 4.8 million tons of CO2 so far.
15．What’s the passage mainly about
A．The importance of greenhouse gas emissions.
B．Bicycle-sharing systems and global warming
C．The UN calls on people to ride bicycles to fight against climate change.
D．China has made great progress in bike-sharing systems.
（2023·福建·统考中考真题）In the past nine years, Li Jin, who was born in Guangxi but raised in Sanya, has made great efforts to protect the waters of Sanya city in Hainan. He is now spreading the knowledge of environmental protection through new media platforms (媒体平台).
Around 2014, he began doing volunteer work to clear rubbish from the beaches and officially registered (注册) as a volunteer in May, 2017. Li Jin immediately took the lead in a cleanup activity on the Sanya River.
In April, 2021, he used his own money to set up a volunteer service center which has 1, 170 registered members who take part in activities without asking for payment. So far, he has spent about 3, 800 hours on volunteer activities in over 550 events. More than 2, 300 people have joined in with his encouragement. They’ve drawn the attention of both the adults (成年人) and the children to the importance of protecting the oceans and beaches. Since it was set up, his center has organized 51 beach-cleaning activities that have seen about 1, 800 people join in. In 2021, because of Li’s growing influence in environmental protection circles, the city government invited him to make a number of short videos, in which he uses simple words to explain how to protect the environment. Several of the videos have been watched millions of times.
“My volunteer work would be meaningless if I got paid. But the work itself is of great value. So I will continue doing the environmental protection work,” he said.
16．What is Li Jin trying hard to protect
A．The beaches in Guangxi. B．The waters of Sanya.
C．The wildlife on the Sanya River. D．The cities in Hainan.
17．How many people join Li Jin’s volunteer service center
A．550. B．1,170. C．1,800. D．2,300.
18．What can we know from paragraph 3
A．Millions of people join in Li Jin’s activities. B．Members in Li Jin’s service center get paid.
C．Most activities are organized for children. D．Some videos Li Jin made are a success.
19．Which of the following best describes Li Jin
A．Quiet and kind-hearted. B．Patient and humorous.
C．Strong-minded and selfless. D．Honest and easygoing.
20．What is the text mainly about
A．A hero praised for volunteer work. B．The leader in a cleanup activity.
C．The meaning of protecting water. D．A volunteer service center.
（2023·福建厦门·厦门外国语学校校考模拟预测）Today, it is very convenient to shop online. But what do you do with all the leftover (剩余的) cardboard boxes Here’re some ideas for reusing them.
Bird feeders
Use a pair of scissors to cut out a square or circle in front of a cardboard box. Put some bird food inside of it. Make a hole on each side of the box. Run a string (绳子) through these two holes and hang the box from a tree. The birds will be excited about the free meal!
Plastic bag holders
Put some plastic bags into a pile (叠). Then place the pile in a cardboard box. Cut a hole in the box so you can pull out one bag at a time when you need it.
Weed (杂草) killers
Are you tired of pulling weeds in your yard Place pieces of cardboard in areas where weeds grow. Then add some sand on top to cover these pieces. Cardboard can help prevent weeds from growing.
Artworks
You can use the boxes to make your own easels (画架), or even wall art. Cardboard can also be turned into beautiful party decorations. The possibilities are endless!
21．How many ways of reusing cardboard boxes are mentioned in the text
A．One. B．Two. C．Three. D．Four.
22．Which is the right order to make a bird feeder
①Run a string. ②Make a hole on each side. ③Cut out a square.
④Put some bird food inside.
A．①②③④ B．①③④② C．③④②① D．②③④①
23．Why should we out a hole in the box when making a plastic bag holder
A．To hang the box on the wall. B．To pull out one bag at a time.
C．To make a beautiful decoration. D．To put some plastic bags into it.
24．Which of the following is helpful to prevent weeds from growing
A． B． C． D．
25．In which section of the magazine can we read the text
A．Health. B．Art. C．DIY. D．Nature.
（2023·福建福州·福建省福州屏东中学校考模拟预测）Planting trees can cut down CO2 in the air, but just doing this isn’t enough to deal with climate change. Now one way discussed widely is carbon capture (碳捕获). It refers to the technology that can protect the earth against climate change by cutting down CO2 in the air.
Carbon capture technology is used to collect CO2 that is given off by factories. For example, it can be fitted to coal-burning power stations and factories to capture the CO2 before it is given off by factories. The captured CO2 can then be liquefied (液化) and stored underground. Besides, the technology can also be used to collect the CO2 that has already gone into the air.
Then how can we deal with the CO2 we capture Proper utilization is truly important. It can not only help create markets for this new technology, but also make it cheaper for companies to use. Nowadays, CO2 is used in greenhouses to grow vegetables. CO2 can even be used to make useful products, such as plastics, building materials, and paints.
Carbon capture is considered to be quite helpful. However, there are many problems on the way. There’s 50 billion tons of carbon going out to the air from cars and factories every year. But even a great number of carbon capture machines now can capture only a few dozens of tons of it. The thickness of CO2, in the open air is about 300 times less than that in the power stations or factories, making it much less efficient to capture CO2. Because of this, carbon capture machines are very expensive today. So, it’s hard to make a real difference in fighting climate change now. But it will be improved quickly and will become cheaper and more efficient. It is like the mobile phones which were expensive and difficult to use 20 years ago. But now mobile phones have been greatly improved.
26．What can carbon capture technology be used for
A．Helping protect trees. B．Cutting down CO2 in the air.
C．Studying the condition of the air. D．Checking signs of climate change.
27．What does Paragraph 2 mainly talk about
A．The ways in which the technology works.
B．The advantage of the technology.
C．Tho secrets behind the technology.
D．The development of the technology
28．What does the underlined word “utilization” refer to
A．Storing CO2. B．Collecting CO2. C．Using CO2. D．Producing CO2.
29．What can we know from the passage
A．The market for CO2 products is growing fast.
B．Carbon capture technology hasn’t been widely used.
C．The cost of fixing the carbon capture machines is high.
D．There is more CO2 in the open air than that in factories.
30．Why does the writer mention the example of mobile phones
A．To express the personal interest in mobile phones.
B．To show carbon capture technology will be improved.
C．To raise a new topic of how technology influences our life.
D．To advise readers to take an interest in the development of technology.
（2023·福建三明·统考模拟预测）①Zheng Huan has a deep love for nature. “Sunshine, air, water, plants and animals…They are the most important things on our planet. However, many people haven’t realized it,” Zheng said. “What’s worse, climate change is greatly affecting biodiversity（生物多样性）and our environment.”
②Zheng decided to make a change. She set up the Youth Leader Fund and began working with game companies and artists. Together they have made climate change a thing that can be seen, felt and dealt with.
③Zheng has been working on a game called Guardians of Earth. Players take pictures of different kinds of plants and animals to earn points in the game. “The game has changed my ideas about plants and animals. They have all become alive and meaningful to me,” one player said.
④Another project Zheng is helping with is on digital art works about climate change. She invited artists to create pieces based on a sci-fi novel AI 2041, which talked about how AI would affect the environment in the future. “Online paintings can reach more people in a shorter time,” Zheng said. “I want to increase people’s understanding of nature in beautiful and futuristic（未来派的）ways,” she added.
⑤Zheng’s work has got wide attention and praise. She hopes one day biodiversity and climate change will become old ideas—like something that is rooted in people’s hearts.
31．The underlined word “it” in the first paragraph refers to “________”.
A．air pollution B．the importance of our planet
C．climate change D．the importance of nature
32．Why did Zheng set up the Youth Leader Fund
A．To learn from artists. B．To get closer to nature.
C．To fight against climate change. D．To make more people get interested in nature.
33．What can we learn about the book AI 2041
A．It became popular in a very short time. B．It is about advantages of AI.
C．It was written by Zheng Huan. D．It is a sci-fi novel.
34．Which of the following best shows the structure of the passage
A． B． C． D．
35．You may find the passage in ________.
A．a popular online game B．an interesting novel
C．a magazine about nature D．a guidebook
（2022春·福建厦门·九年级厦门市湖里中学校考期中）Historically, most cars have run on gasoline (汽油), but that may change in the future: cars can also run on other liquid fuels (液体燃料) and electricity.
Gasoline is from oil. The energy in gasoline comes from hydrocarbons (碳氢化合物). Gasoline provides great power for cars. However, it causes environmental problems, like air pollution and temperature rise. So gasoline can’t be the best fuel.
Another choice is electricity. Electricity cars can be as efficient as cars using gasoline, and they produce less pollution. But electric cars themselves are more expensive. Good news is that the cost has been lower and there are more and more places for the cars to get electricity ever since 2010.
The other choices are other liquid fuels. Many of these can be stored in the same places as gasoline, and used in the same cars. They can also be friendly to the environment.
One way to make such fuels is to get CO2 from the air and put it in water. Through chemical reaction, hydrocarbons can be created. However, these fuels take up more space.
Another way is to make such fuels from plants which take in carbon from the air. These fuels are greener in use. But not all of them can be as efficient as gasoline.
For a fuel to be the best, people have to be able to afford it. Unluckily, almost every green technology is more expensive than that of using gasoline. Governments and car producers are doing everything they can to cut down the costs. In the end, the best fuel will be both affordable for car users and green for our planet.
36．Gasoline provides cars with ________.
A．great power B．fresh air C．clean water D．enough space
37．What does the underlined word “efficient” mean
A．环保的 B．节能的 C．昂贵的 D．效能好的
38．According to Paragraph 3, we can infer that electric cars ________.
A．produce less pollution B．will become more and more expensive
C．will become more popular D．are more efficient than those using gasoline
39．The structure of the passage may be ________.
A． B． C． D．
40．What would be the best title for the passage
A．How Do We Save Our Planet B．What Are the Fuels’ Difference
C．What Is the Best Fuel for Cars D．How Do We Make Fuels for Cars
参考答案：
1．A 2．B 3．C 4．C 5．A
【导语】本文是一则环保海报创作竞赛的广告，介绍了活动的时间、地点、奖励方案与活动内容等相关信息。
1．细节理解题。根据标题中的“WE ALL NEED TREES (我们都需要树)”可知，赛事与树相关。故选A。
2．细节理解题。根据左方框“Conservation Poster Contest is open to all students in grades 2-12 (环保海报创作竞赛对2—12年级的所有学生开放)”可知，赛事为学生而办。故选B。
3．细节理解题。根据“Posters are evaluated in one of four categories... (海报分四类进行评估……)”可知，共分四个组。故选C。
4．细节理解题。根据右下方框中“1st place $200 (一等奖，奖金200美元)”可知，若赢得一等奖，可获得奖金200美元。故选C。
5．细节理解题。根据左下栏最后一段“grouped according to grade level (按年级分组)”可知，选项A“他们将根据年级对海报进行分组”的说法正确。故选A。
6．B 7．B 8．C 9．A 10．A
【导语】本文主要讲述了中国每年要产生大量的垃圾，这危害着人们的健康和环境，因此中国开始采取一系列措施来处理垃圾。
6．细节理解题。根据第一段出现的三个问句“Where does the waste go ... What about the useless part ...But is it a proper way ”可知，本文是通过提出问题开始的，故选B。
7．词义猜测题。根据“We should leave clean water and green mountains to our next generations.(我们应该把青山绿水留给我们的下一代)”可推断，suitable在这里的意思是“可持续的”，也就是我们经常说的“可持续发展”，故选B。
8．细节理解题。根据“waste sorting is a new fashion(时尚). More and more people are forming the habit of separating their waste.”可知，垃圾分类在中国已经开始流行，故选C。
9．篇章结构题。文章第一段引出垃圾的问题；第二段主要讲了垃圾的危害；第三段概括指出中国目前正认真对待垃圾处理问题；第四、第五和第六段分别从三个方面阐述了中国在应对垃圾处理问题上的举措，所以选项A准确地呈现了文章的结构，故选A。
10．最佳标题题。本文主要讲述了中国每年要产生大量的垃圾，这危害着人们的健康和环境，因此中国开始采取一系列措施来处理垃圾，选项A“如何处理废物”符合文章主旨，故选A。
11．B 12．A 13．D 14．C 15．C
【导语】本文主要讲联合国号召大家骑自行车来应对气候变化。
11．细节理解题。根据“It calls on member countries to choose bicycles in public transportation systems.”可知是号召成员国选择自行车作为出行工具，即更多的使用自行车。故选B。
12．词义猜测题。根据“On March 15, the UN General Assembly passed a resolution(决议) suggesting bicycles as a tool for solving problems about climate change. It calls on member countries to choose bicycles in public transportation systems.”可知决议建议选择自行车作为工具来解决气候变化。故it指代“决议”。故选A。
13．细节理解题。根据“More than 40 percent of the world’s population will be influenced by climate change.”可知气候变化将会导致40%的世界人口受到影响。D选项正确。故选D。
14．细节理解题。根据“China’s bike-sharing systems can help reduce CO2 by 4. 8 million tons every year.”可知共享单车系统每年能够减少480万吨二氧化碳，说明在保护环境方面有很重要的作用。故选C。
15．主旨大意题。本文主要讲联合国号召大家骑自行车来应对气候变化。故选C。
16．B 17．B 18．D 19．C 20．A
【导语】本文讲述了李金用自己的行动来守护三亚河湖水生态环境的故事。
16．细节理解题。根据“Li Jin immediately took the lead in a cleanup activity on the Sanya River.”可知李金参与了三亚河湖清理工作，努力保护三亚河的水。故选B。
17．细节理解题。根据“In April, 2021, he used his own money to set up a volunteer service center which has 1, 170 registered members who take part in activities without asking for payment.”可知有1170名志愿者参与活动中。故选B。
18．细节理解题。根据“In 2021, because of Li’s growing influence in environmental protection circles, the city government invited him to make a number of short videos, in which he uses simple words to explain how to protect the environment. Several of the videos have been watched millions of times.(2021年，由于李在环保界的影响力越来越大，市政府邀请他制作了一些短视频，在视频中，他用简单的语言解释如何保护环境。其中一些视频已经被观看了数百万次。)”可知李金制作的视频是很成功的。故选D。
19．细节理解题。根据“So far, he has spent about 3, 800 hours on volunteer activities in over 550 events.”和“‘My volunteer work would be meaningless if I got paid. But the work itself is of great value. So I will continue doing the environmental protection work,’ he said.”可知截至目前为止，他花费了约3800个小时从事志愿者活动，且会继续坚持下去，由此可见他是意志坚强的人；这是志愿者服务，他也是一个无私的人。故选C。
20．主旨大意题。本文讲述了李金用自己的行动来守护三亚河湖水生态环境的故事，说明李金是一个因志愿者工作而受到赞扬的英雄。故选A。
21．D 22．C 23．B 24．D 25．C
【导语】本文主要介绍了一些再利用纸板箱的方法。
21．细节理解题。根据“Bird feeders”、“Plastic bag holders”、“Weed killers”和“Artworks”可知提到了再利用纸板箱的四种方法。故选D。
22．细节理解题。根据“Use a pair of scissors to cut out a square or circle in front of a cardboard box. Put some bird food inside of it. Make a hole on each side of the box. Run a string through these two holes and hang the box from a tree.”可知制作喂鸟器的顺序是：剪出一个正方形→在里面放一些鸟食→在两边各打一个洞→穿一根绳子。故选C。
23．细节理解题。根据“Cut a hole in the box so you can pull out one bag at a time when you need it.”可知我们在做塑料袋架的时候要在盒子上打个洞是为了一次取出一个袋子。故选B。
24．推理判断题。根据“Place pieces of cardboard in areas where weeds grow. Then add some sand on top to cover these pieces. Cardboard can help prevent weeds from growing.”可知在杂草生长的地方放一些硬纸板。然后在上面加一些沙子覆盖这些碎片。硬纸板有助于防止杂草生长。由此推出D项更符合这一描述。故选D。
25．推理判断题。本文主要介绍了一些再利用纸板箱的方法，可能在杂志的DIY板块读到。故选C。
26．B 27．A 28．C 29．B 30．B
【导语】本文主要介绍了碳捕获技术的用途和现存问题。
26．细节理解题。根据第一段中的“It refers to the technologies that can protect the earth against climate change by cutting down CO in the air”可知，碳捕获技术可以减少空气中的二氧化碳。故选B。
27．段落大意题。根据第二段“Carbon capture technology is used to collect CO2 that is given off by factories. ”可知碳捕集技术用于收集工厂排放的二氧化碳，该段主要介绍了碳捕获技术是如何发挥作用的。故选A。
28．词义猜测题。根据画线词前的“Then how can we deal with the CO2 we capture”及画线词后的“CO2, is used in greenhouses... CO2, can even be used to make useful products”可知那我们该如何处理二氧化碳，比如可用于制造有用的产品，可推知此处表示“正确地使用（捕获的二氧化碳）非常重要”。故选C。
29．推理判断题。根据最后一段的描述，特别是其中的“there are many problems on the way...making it much less efficient”可知途中存在许多问题，使其效率大大降低，以及“carbon capture machines are very expensive today. So, it’s hard to make a real difference in fighting climate change now”可知如今，碳捕集机非常昂贵。因此，现在很难在应对气候变化方面做出真正的影响，因此可推知，碳捕获技术尚未被广泛应用。故选B。
30．推理判断题。根据最后一段中的“But it will be improved quickly. .. now mobile phones have been greatly improved”可推知作者提到手机是为了说明碳捕获技术也将会像手机一样被不断地优化。故选B。
31．D 32．C 33．D 34．A 35．C
【导语】本文主要介绍了郑欢设立青年领袖基金并开展相关项目，让人们更了解自然界的生物多样性及气候变化等问题。
31．词句猜测题。根据“Zheng Huan has a deep love for nature. ‘Sunshine, air, water, plants and animals…They are the most important things on our planet. However, many people haven’t realized it,’ Zheng said.”可知，郑欢非常热爱大自然，她认为，阳光、空气、水、植物和动物等等，它们都是地球上最重要的东西，但许多人并没有意识到这一点。因此，代词it指代“大自然的重要性”。故选D。
32．推理判断题。根据“Together they have made climate change a thing that can be seen, felt and dealt with.”可知，他们共同使气候变化成为一件看得见、摸得着、能处理的事情。由此可知，她设立青年领袖基金是为了应对气候变化。故选C。
33．细节理解题。根据“She invited artists to create pieces based on a sci-fi novel AI 2041, which talked about how AI would affect the environment in the future.”可知，《人工智能2041》是一本科幻小说。故选D。
34．篇章结构题。纵观全文可知，文章第一段先引出人物郑欢，并介绍了她对大自然的看法，第二段介绍了她设立的青年领袖基金，第三段和第四段则分别介绍了她如何利用游戏和数字美术作品向人们更了解自然界的生物多样性及气候变化，第五段是对郑欢所做的工作给出的评价，因此选项A的篇章结构图最能展现文章的结构。故选A。
35．推理判断题。本文主要介绍了郑欢设立青年领袖基金并开展相关项目，让人们更了解自然界的生物多样性及气候变化等问题。因此这篇文章极有可能来自跟自然话题相关的杂志。故选C。
36．A 37．D 38．C 39．B 40．C
【导语】本文是一篇说明文，介绍了几种不同的可供汽车使用的“燃料”，即汽油、电和其他液体燃料。最后得出结论，环境友好型以及价格合适的“燃料”最合适汽车使用。
36．细节理解题。根据原文“Gasoline provides great power for cars”可知，汽油为汽车提供了巨大的动力。故选A。
37．词句猜测题。根据原文“Gasoline provides great power for cars”可知，汽油有着高效能，能为汽车提供巨大动力，故此处指的是电动汽车的效能与使用汽油的汽车一样高。故“efficient”有“效能好的”之意。故选D。
38．推理判断题。通读第三段，可得出的直接信息：电动汽车可以和用汽油的车一样效能好；电动汽车产生的污染少；价格比较贵。A选项可直接得出，与题意“推断出”不符合，可排除，根据最后一句“Good news is that the cost has been lower and there are more and more places for the cars to get electricity ever since 2010”可推断，电动汽车的价格将会下降，而且充电越来越方便，因此电动汽车将会越来越受欢迎。故选C。
39．篇章结构题。本文第一段为总结段，介绍车的三大动力来源：汽油、液体燃料和电；第二、三和四段分别介绍了汽油、电力以及其他液体燃料，第五和第六段是对液体燃料的展开介绍，第七段是总结段。故选B。
40．最佳标题。本文是一篇说明文，介绍了几种不同的可供汽车使用的“燃料”，即汽油、电和其他液体燃料。最后得出结论，环境友好型以及价格合适的“燃料”最合适汽车使用。故选C。
