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题型:阅读理解 题类:常考题 难易度:普通

江苏省常州“教学研究合作联盟”2018-2019高二下学期英语期中考试试卷

阅读理解

    Metal-organic frameworks(MOFs) are compounds that are set to solve some tough challenges: producing water in the desert, removing greenhouse gases from the air and storing dangerous gases more safely.

    The Arizona desert is really dry. Anyone stuck in it without water would die from dehydration (脱水) within three days. Unless, that is, they had one of Omar Yaghi's next-generation water harvesters. Although daytime humidity(湿度)is only about 10 per cent, this rises to 40 per cent at night, which means there's enough water in the atmosphere to support life — if it can be transformed into liquid form.

    That's exactly what Yaghi's device does. It's a box about the size of a small microwave oven designed to suck the humidity from the air at night and turn it into drinking water the next day using only the heat of the sun as its power source. What makes it work is a special material called a metal-organic framework (MOF), which at normal temperatures attracts water molecules (分子) onto its surface of its internal pores(细孔). Warm it up and the water is released, each harvest producing one-third of a cup of pure drinking water.

    "With further improvements, a device, the size of a washing machine, could produce enough water for the basic needs of a household," says Yaghi, a chemist at the University of California. One-third of the world's population lacks safe drinking water; for them such a device could be a lifesaver.

    These crystalline cluster(结晶群)of metals, such as aluminum or magnesium, linked by organic molecules can be made into materials with an extremely high absorption ability, attracting specific molecules to their surface. In this way, MOFs cling to a variety of liquids and gases.

MOFs work thanks to their unique structure—large quantities of nanometer-sized internal spaces. In fact one MOF has so many pores that they would cover an area as large as six football fields. MOFs are also extremely stable light and have many different uses: their molecular structure can be varied to attract specific molecules, such as water, and their pores can be designed to best store them. Adding a small amount of heat or pressure causes the MOF to release what it is holding. More than 70,000 different MOFs have been produced to date for various applications.

(1)、Why is the Arizona desert mentioned in the second paragraph?
A、To introduce water harvesters. B、To stress the importance of water. C、To express the urgent need for water there. D、To show its serious condition.
(2)、What plays a vital role in water harvesters?
A、solar energy. B、water molecules. C、a small microwave oven D、metal-organic frameworks.
(3)、What does the underlined phrase "cling to" in paragraph 5 probably mean?
A、hold onto B、break down C、give off D、turn into
(4)、What will probably be covered in the following paragraphs?
A、The future of the MOF technology. B、Other uses of the MOF technology. C、The limitation of the MOF technology. D、The improvement of the MOF technology.
举一反三
阅读理解

    While the U.S. is still debating about getting rid of the penny, Sweden is rapidly moving towards abolishing (to end) currency altogether. Though this may sound radical (过激的), it is a natural evolution in this digital society.

    Sweden, which was the first European country to introduce banknotes in 1661, has just been working harder to convince its residents that digital payments are a safer alternative to carrying cash.

    Over the years, the idea has gained popularity with residents, especially the younger generation that is much more comfortable with technology. Today many banks don't even have ATMs and some have stopped handling cash altogether!

    Tickets to ride public buses in most Swedish cities can only be bought via cell phones. Numerous businesses are also moving towards accepting only digital payments. Even the homeless that sell street paper to make ends meet have to start accepting this mode of payment!

    But despite its growing popularity, some people don't like this radical idea. They include the homeless, elderly people as well as those living in rural areas who are still uncomfortable with mobile phones and computers. But the officials are confident that in the very near future, they will be able to convince everyone to move this safe and more cost-effective payment system.

    Sweden is not the only country trying to abolish paper currency and coins. The movement is rapidly gaining ground in Denmark and Finland as well. In 2014,Israel announced a three-step plan to go cashless and just last week the vendors (小贩) of a popular street in Sydney declared they would stop accepting currency from customers. Whether this phenomenon spreads remains to be seen. But one thing is for sure-With increasingly advanced payment systems being introduced every day, pulling out cash is rapidly becoming “uncool”.

阅读理解

    Stephen Hawking, the brilliant British theoretical physicist who published wildly popular books exploring the mysteries of the universe, has died, according to a family spokesman. He was 76.

    Considered by many to be the world's greatest living scientist, Hawking was also a cosmologist, astronomer, mathematician and author of numerous books including the landmark“A Brief History of Time,” which has sold more than 10 million copies.

    With fellow physicist Roger Penrose, Hawking combined Einstein's theory of relativity with quantum theory(量子理论) to suggest that space and time would begin with the Big Bang and end in black holes. He also discovered that black holes were not completely black but emit(释放) radiation and would likely eventually evaporate(蒸发) and disappear. “It will be difficult enough to avoid disasters on planet Earth in the next 100 years, let alone next thousand, or million. The human race shouldn't have all its eggs in one basket or on one plant. Let's hope we can avoid dropping the basket until we have spread the load.”

    Hawking suffered from ALS (amyotrophic latcral sclerosis), a disease which is usually fatal within a few years. He was diagnosed in 1963, when he was 21, and doctors initially gave him only a few years to live. The disease left Hawking wheelchair-bound and paralyzed. He was able to move only a few fingers on one hand and was completely dependent on others or on technology for everything—bathing, dressing, eating, even speech. “I have been lucky that my condition has progressed more slowly than is often the case. But it shows that one need not lose hope.” Dramatically, he even guest-starred in the “Star Trek”, “The Simpsons” and the 2014movie “The theory of Everything”.

    Hawking leaves behind three children and three grandchildren. “We are deeply saddened that our beloved father passed away today,” Hawking's children, Lucy, Robert and Tim, said in a statement. “He was a great scientist and an extraordinary man whose work and legacy will live on for many years. His courage and persistence with his brilliance and humor inspired people across the world. “We will miss him forever.”

阅读理解

    Dyslexia(失读症) is a learning disorder, it interferes with the ability to recognise words, and for some readers to understand what they have read.

    Experts say dyslexia affects about five to ten percent of the population of the United State. Researchers have long known that people with dyslexia write or read words and letters backwards in the wrong order.

    But a new study shows that people with dyslexia may have trouble redirecting(重新传入) their attention between senses, from seeing something to hearing something. The study suggests something that might help dyslexic people learn more quickly — play video games.

    Vanessa Harrar of Britain's University of Oxford led the study. She reported the findings in the journal Current Biology. The study suggests that dyslexic people may have trouble moving quickly from what they read to what they hear. Doctor Harrar calls this a "sluggish shifting of attention across the senses."

    "So, if you are trying to read something and then trying to listen to somebody who's reading aloud and you're trying to follow along with what they are reading -- they have to switch their attention from hearing what they are saying to looking at the piece of paper and back again. So we found they have quite sluggish shifting of attention across the senses," said Harrar.

    In the study, Doctor Harrar tested 17 people with dyslexia, and 19 others without reading problems. The volunteers were asked to push a button as quickly as possible when they heard a sound, saw a light or experienced both together. Doctor Harrar compared the speed of their reactions.

    She found that people with dyslexia were just as fast as the others when they saw only a picture or heard only a sound. But the dyslexics had a slower reaction time when they heard a sound and saw a picture at the same time.

    Doctor Harrar feels like playing action video games could help dyslexic people shift from seeing to hearing more quickly. She adds that images in video games force the eyes to move and focus quickly.

    "Video game types of things pop out of here and there, they move your eyes around the screen quite quickly in response to things quite quickly, and the more you play a video game the faster you get that kind of thing. So, the video game is really training the attention system to move quickly," said Harrar.

    The study also shows that dyslexic people have the most difficulty going between what they saw and what they heard, this may have an effect on how dyslexic children are taught how to read.

    When children learn the alphabet, they usually see the letter first and then hear the sound, or they see and hear the letter at the same time. The study shows that dyslexics might learn more quickly if they hear the sound of a letter or word first before seeing it.

Britain's Prime Minister Theresa May attended the opening ceremony of the 2018 “English is GREAT” activity, which aims to support and encourage more people across China to learn to speak English, during her visit to Wuhan University in Central China's Hubei Province, Jan 31.

    Started by the British Council, the UK's international organization for cultural relations and educational opportunities, this year-long activity sets out to improve fluency in spoken English in particular.

    Prize-winning online competition

    The activity also marked the start of an online competition, “My Favorite English Word”. You can join by simply posting your word of choice on China Daily.com. The most popular words will be included in a draw to win a variety of prizes, including Kindle, Polaroid camera and Bluetooth speaker. To participate, click here.

    English Teacher Award.

    The activity establishes an English Teacher Award to recognize excellence in teaching among Chinese non-native teachers of English. Nominations(提名) will be made by students and English teachers.

    In order to recognize more inspiring teachers, monthly prizes will be presented and the winner of the grand final award will be announced later in the year. The winner will have the opportunity to study in the UK for 4 weeks—supported by the International House London.

    Throughout the activity, the “English is GREAT” website will provide access to free online resources and all kinds of materials for English learners of all levels.

UK-Mandarin (Standard Chinese) Excellence Program

    The “English is GREAT” activity will reply to the UK-Mandarin Excellence Program, started in 2016, which aims to have 5,000 secondary school pupils in the UK fluent in Mandarin by 2020.


阅读理解

Real Simple

First Issue: 2000

Published: Monthly

Real Simple is a lifestyle title owned by Time, Inc. This magazine covers topics from decorating and dieting to childcare and product guides. Like many lifestyle magazines, Real Simple is written with women in mind, but that doesn't mean men can't get something out of it! This one is especially good for people who like to organize and simplify their lives. As the title implies, simple, authentic(真实的)living is the magazine's main theme.

Better Homes and Gardens

First Issue: 1922

Published: Monthly

Better Homes and Gardens is a household name when it comes to lifestyle magazines. It's been around since 1922, so the title has a long history of providing high quality, useful content. Decorating and gardening, as the title suggests, are common topics in the magazine, but it is also known for its excellent recipes.

Woman's Day

First Issue: 1937

Published: Monthly

If you're looking for a magazine that combines lifestyle and fashion content, Woman's Day might be a good choice. It has a readership of over 3 million women across the United States. Some of its unique characteristics include its focus on traditional values and its commitment to giving women realistic advice. Many magazines feature lifestyles that are out of reach for the majority of American families, but Woman's Day tries to give practical advice and suggestions that its real-world readers can put into practice.

Taste of Home

First Issue: 1993

Published:Bi-monthly

For people who want a magazine that's entirely about cooking, recipes, nutrition, and other food-related content, Taste of Home has been a popular choice all the time. It has an unusually rich history of giving its readers what they want. The magazine only started including advertisement in 2007, before which it was advertisement-free. Now the magazine is doing pretty well financially(财政上).

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