2020年12月英语四级真题答案(第3套)
Directions: For this part, you are allowed 30 minutes to write on the topic Changes in the Way of Communication. You should write at least 120 words but no more than 180 words.
Section A
Section B
Section C
Section A
Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.
The things people make, and the way they make them, determine how cities grow and decline, and influence how empires rise and fall. So, any disruption to the world's factories . And that disruption is surely coming. Factories are being digitised, filled with new sensors and new computers to make them quicker, more , and more efficient.
Robots are breaking free from the cages that surround them, learning new skills and new ways of working. And 3D printers have long a world where you can make anything, anywhere, from a computerised design. That vision is closer to reality. These forces will lead to cleaner factories, producing better goods at lower prices, personalised to our individual needs and desires. Humans will be many of the dirty, repetitive, and dangerous jobs that have long been a of factory life.
Greater efficiency means fewer people can do the same work. Yet factory bosses in many developed countries are worried about a lack of skilled human workers—and see and robots as a solution. But economist Helena Leurent says this period of rapid change in manufacturing is a opportunity to make the world a better place. "Manufacturing is the one system where you have got the biggest source of innovation, the biggest source of economic growth, and the biggest source of great jobs in the past. You can see it changing. That's an opportunity to that system differently, and if we can, it will have tremendous significance. "
Section B
Directions: In this section. you are going to read a passage with ten statements attached to it. Each statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the questions by marking the corresponding letter on Answer Sheet 2.
The History of the Lunch Box
Section C
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C), and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
Passage One
A growing number of U. S. bike riders are attracted to electric bikes for convenience, health benefits and their fun factor. Although ebikes first appeared in the 90s, cheaper options and longer-lasting batteries are breathing new life into the concept.
Established bike companies and startups are embracing ebikes to meet demand. About 34 million ebikes were sold worldwide last year, according to data from eCycleElectric Consultants. Most were sold in Europe and China, where the bikes already have exploded in popularity. Recently, the U. S. market has grown to 263,000 bikes, a 25% gain from the prior year.
The industry is benefiting from improved batteries as suppliers over the years developed technology for laptops, smartphones and electric cars. In 2004, the price of batteries used on ebikes fell, spurring European sales.
But lower cost options are emerging, too. This month, three U. S. bike-share companies, Motivate, LimeBike and Spin, announced electric bicycles will be added to their fleets. New York-based Jump Bikes is already operating an electric bikeshare in Washington, D. C., and is launching in San Francisco Thursday. Rides cost $ 2 for 30 minutes.
The system works like existing dockless bike-share systems, where riders unlock bikes through a smartphone app. "This is the beginning of a long-term shift away from regular pedal (踏板) to electric bikes," said Jump Bikes CEO Ryan Rzepecki. "When people first jump on an ebike, their face lights up. It's exciting and joyful in a way that you don't get from a regular bike. "
Two years ago, CEO Chris Cocalis of Pivot Cycles, which sells high-end mountain bikes, found that U. S. bike shops weren't interested in stocking ebikes. Some retailers warned Cocalis that they'd drop the brand if it came out with an electric bike.
Now that sales are taking off, the vast majority of bike dealers are asking Cocalis when he'll make an ebike available. "There's a tremendous opportunity to get a generation of people for whom suffering isn't their thing," Cocalis said. "Ebike riders get the enjoyable part of cycling without the massive suffering of climbing huge hills. "
Passage Two
The terms "global warming" and "climate change" are used by many, seemingly interchangeably. But do they really mean the same thing?
Scientists shaped the history of the terms while attempting to accurately describe how humans continue to alter the planet. Later, political strategists adopted the terms to influence public opinion. In 1975, geochemist Wallace Broecker introduced the term "climate change" in an article published by Science. In 1979, a National Academy of Sciences report used the term "global warming" to define increases in the Earth's average surface temperature, while "climate change" more broadly referred to the numerous effects of this increase, such as sea-level rise and ocean acidification (酸化).
During the following decades, some industrialists and politicians launched a campaign to sow doubt in the minds of the American public about the ability of fossil-fuel use, deforestation and other human activities to influence the planet's climate.
Word use played a critical role in developing that doubt. For example, the language and polls expert Frank Luntz wrote a memo encouraging the use of "climate change" because the phrase sounded less scary than "global warming," reported the Guardian.
However, Luntz's recommendation wasn't necessary. A Google Ngram Viewer chart shows that by 1993 climate change was already more commonly used in books than global warming. By the end of the next decade both words were used more frequently, and climate change was used nearly twice as often as global warming.
NASA used the term "climate change" because it more accurately reflects the wide range of changes to the planet caused by increasing amounts of greenhouse gases in the atmosphere.
The debate isn't new. A century ago, chemist Svante Arrhenius started one of the first debates over the potential for humans to influence the planet's climate. Arrhenius calculated the capability of carbon dioxide to trap heat in the Earth's atmosphere, but other chemists disagreed. Some argued that humans weren't producing enough greenhouse gases, while others claimed the effects would be tiny. Now, of course, we know that whatever you call it, human behavior is warming the planet, with grave consequences ahead.
Directions: For this part, you are allowed 30 minutes to translate a passage from Chinese into English. You should write your answer on Answer Sheet 2.
本页为2020年12月英语四级真题(第3套)答案,支持隐藏答案自查。
写作题目:Changes in the Way of Communication
翻译题干节选:鱼是春节前夕餐桌上不可或缺的一道菜,因为汉语中"鱼"字的发音与"余"字的发音相同。正由于这个象征性的意义,春节期间鱼也作为礼物送给亲戚朋友。鱼的象征意义据说源于…