Have you ever made a mistake while trying to print from a computer? That paper probably went right into the recycling bin. From there, it is taken to a waste-handling plant to be eventually broken down and remade. But what if you could simply erase your mistake and reuse that paper? It may become available, thanks to a new technology.
It's a new type of rewritable paper that can be used more than 100 times. Words and pictures remain visible on it for at least half a year. This is nearly the first rewritable paper. But the marks on those earlier versions tended to fade away in less than three months.
Luzhuo Chen led the group that made the new rewritable paper. His team was inspired by pens that contain erasable ink. That ink disappears when heated. To make its new rewritable paper, Chen's group switched the ink from the pen to the paper. They covered one side of regular paper with the ink used in those erasable pens. Using a heated pen or printer, they can now write or print on this paper. That warmth makes the ink disappear.
This is the opposite of how writing usually works, where ink is applied to paper. With the new system, the spots where you write become white instead of colored because that heat makes the ink covering the white paper disappear.
Qiang Zhao has a creative mind behind another type of rewritable paper. He thinks Chen's paper is simple and doesn't cost much to make, so it should be easy and fairly inexpensive to produce. However, the paper will need a lot of ink. In large doses（剂量），chemicals in the ink can be bad for the environment and people's health. Zhao would like scientists to develop a safer ink. Still, he thinks this paper will have wide applications.
1.Why does the author raise the questions in the first paragraph?
A.To prove the necessity of recycling paper.
B.To introduce the importance of rewritable paper.
C.To draw readers attention to the new technology.
D.To show the development of paper-making technology.
2.What's the advantage of the new rewritable paper over earlier versions?
A.It can be reused for a lot more times.
B.The costs of producing it are much lower.
C.It can be produced in a much easier way.
D.The contents on it can be more long-lasting.
3.Which of the following reflects Qiang Zhao's opinion on Chen's paper?
A.It still needs improving. B.It's somewhat impractical.
C.It does no harm to its users. D.It's worth promoting right away.
4.What can we know about Luzhuo Chen's new paper from the text?
A.It shows colored words or pictures.
B.It doesn't require ink to write on it.
C.It will replace ordinary writing paper soon.
D.It has no requirement on the writing tool.
Alcantara Boat Trip
This sailing trip begins on the reservoir of Alcantara, located in the northwest of Extremadura, near the border of Portugal and within the Tajo Natural Park—25,000 hectares of park which spreads across Spain and Portugal.
Price:￡23 per adult and ￡19 per child (2-11 years old)
Duration: 3.5 hours
Meeting point on the Alcantara reservoir
Historic Cáceres Walking Tour
The old town of Cáceres has one of the most impressive artistic and huge collections of buildings. One of the best preserved in Europe, this ancient walled city was declared a World Heritage Site by UNESCO in 1986. Walking around the historic centre you will discover ancient walls, palaces, squares and streets all still in good condition.
Price: ￡54 per person
Duration: 1.5 hours
Meeting point at Plaza Mayor
Departure at 11:00, 17:00 or 20:00 (summer only)
Trujillo Cultural Walking Tour
This guided walk visits the most outstanding monuments of Trujillo, a town in history, where its castle, palaces, towers and houses have a glorious past. You will discover the development of Trujillo's history, its people and its most beautiful spots. From the point of Trujill's castle you will be able to capture the best shots, which during the evening tour are bathed by the light of the sunset.
Price: ￡54 per person
Duration: 2 hours
Meeting point at Calle Tiendas
Departure at 11:30, 17:00, 18:00
Wildlife Tour in the Monfragüe Nat ional Park
Travelling in a 6-seater car, within the Monfragüe National Park, you will enter one of the best well-conserved Mediterranean forests in the world with a large variety of birds, deer and other animals.
Price: ￡46 per person
Duration: 3 hours
Departure at 10:00 (return at 16:00)
Meeting point in the town of Malpartida
1.How much should a couple with a 13-year-old kid pay for Alcantara Boat Trip?
A.￡19. B.￡46.
C.￡65. D.￡69.
2.What can we learn about the town of Cáceres?
A.It has the oldest walls in Europe. B.It has the most impressive buildings.
C.It attracts many visitors in winter. D.It has well- preserved old buildings.
3.Which touring activity lasts the longest time?
A.Alcantara Boat Trip. B.Historie Cáceres Walking Tour.
C.Trujillo Cultural Walking Tour. D.Wildlife Tour in the Monfragüe National Park.
假定你是李华，目前在英国某中学做交换生。该校风筝俱乐部在网上发布信息，欲寻找一位能教学生制作中国风筝的志愿者，你有意自荐。请给俱乐部负责人Adam写一封自荐信。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯。
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阅读下面短文，回答文后的5个问题，并把答案写在答题卡上。每题答案不多于15词。
2018 Human Development Report
HDI: Human Development Index(人类发展指数)
[1] Looking back over almost three decades (十年), human beings have made impressive progress. Across the world, people are living longer, are more educated and have greater living chances. The average lifespan(寿命) is seven years longer than it was in 1990, and more than 130 countries have improved their primary education.
[2] Although HDI values are rising, the rising rates differ greatly. South Asia was the fastest growing region over 1990–2017, at 45.3 percent, followed by East Asia and the Pacific at 41.8 percent. And the OECD(经济合作与发展组织) countries grew 14.0 percent. It shows gaps(差距) across regions are hopefully to be reduced.
[3] But HDI growth has also slowed in all regions, particularly in the last decade. Part of the reason lies in the 2008–2009 global food, financial and economic problems. But part is simply that as human progress advances, slower HDI growth is unavoidable. As more countries reach the upper limits of HDI, measures of the quality of human development become more central.
[4] Progress since 1990 has not always been steady(稳定的). Some countries suffered great losses or even setbacks due to wars, diseases or economic problems. For example, many countries in Eastern Europe and Central Asia saw their HDI values fall in the 1990s due to the fall of the Soviet Union(前苏联). Although faced with these challenges, countries in these regions recovered their losses and grew over the last two decades.
[5] In sum, there have been great advances in human development over the past few decades, especially in low human development countries since 1990. But some countries have suffered serious setbacks—sometimes paying the price of the gains of several decades. And the gaps in human development across countries, while narrowing, remain huge.
1.What’s the present situation of people according to 2018 Human Development Report?
2.The fact of different rising HDI rates gives us hope to ______.
3.Compared with the HDI growth, what is more important?
4.How do wars, diseases or economic problems affect human development?
5.Which paragraph is the topic paragraph?
阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式，并将答案写在答题卡上。
Every animal species has its own features. Some animals have the power to run 1. (fast) than sports cars, while others move very slowly.
But the slowest animal in the world is not the turtle, as we may think. It is the three-toed sloth(三趾树懒), 2.lives in the rainforests of South America.
Sloths can be 60 to 80 centimeters long and 3. (weigh) about eight kilograms. It takes them about one minute 4. (climb) only 1.8 to 2.4 meters. They sleep for more than 20 hours every day, staying in the trees most of the time. They come down from the trees to defecate (排便) just once a week. This is the most dangerous time for sloths , as they might 5. (attack) by their enemies, such as big cats.
Sloths may be slow climbers, but they are speedy 6. (swim). They can 7. (natural) float on the water. Since there are always floods in rainforests, the ability to swim is necessary to 8. (they) survival.
People might not be familiar with sloths before. It was because 9.the 2016 Disney film Zootopia that we began to be interested in this animal species. Its lovely image has left a deep 10. (impress) on almost every moviegoer.
请根据汉语意思及首字母将单词的完整形式写在答题卡上。
1.He said, “My mother seldom c ______ (抱怨) about daily cooking.”
2.An a ______ (辩论) is a discussion where a number of people put forward different opinions.
3.Tourism is the main source of i ______ (收入) in this area.
4.Diet and exercise are e ______ (同样地) important.
5.H ______ (诚实) is an important human quality.
6.Cartoon had existed for a long time in the a ______ (古代的) China.
7.We are proud to have been the first city to have r ______ (回收利用) our rubbish.
8.Not only is this the largest dam ever built, it is the largest c ______ (建设) project ever.
9.The law gives c ______ (公民) the right to vote.
10.The robbery o ______ (发生) in broad daylight, in a crowded street.
