1 . The history of microbiology begins with Dutch cloth maker named Antoni van Leeuwenhoek, a man of no formal scientific education. In the late 1600s. Leeuwenhoek, inspired by the magnifying lenses（放大镜）he used to examine cloth, built some of the first-microscopes. He developed technique to improve the quality of tiny, rounded lenses, some of which could magnify an object up to 270 times. After removing some plaque from between his teeth and examining it under a lens, Leeuwenhoek found tiny twisting creatures, which he called “animalcules”.
His observations, which he reported to the Royal Society of London, are among the first descriptions of microbes（微生物）. Leeuwenhoek discovered an entire universe invisible to the human eye. He found different microbes in samples of pond water, rain water, and human blood. He gave the first description of red blood cells, observed plant tissue, examined muscle, and investigated the life cycle of insects.
Nearly two hundred years later, Leeuwenhock’s discovery of microbes helped French chemist and biologist Louis Pasteur to develop his “theory of disease”. This concept suggested that disease originates from tiny organisms attacking and weakening the body. Pasteur’s theory later helped doctors to fight infectious diseases including anthrax, diphtheria, polio, smallpox, tetanus, and typhoid. All these breakthroughs were the result of Leeuwenhoek’s original work. Leeuwenhoek did not foresee this legacy.
In a 1716 letter, he described his contribution to science this way: “My work, which I’ve done for a long time, was not pursued in order to gain the praise I now enjoy, but chiefly from a strong desire for knowledge, which I notice resides in me more than in most other men. And therefore; whenever I found out anything remarkable, I have thought it my duty to put down my discovery on paper, so that the scientific community might be informed thereof.”
1. Which of the following best describes Leeuwenhoek?| A．trained researcher with an interest in microbiology |
| B．A curious amateur who made pioneer studies of microbes |
| C．A talented scientist interested in finding a cure for disease |
| D．A bored cloth maker who accidentally made a major discovery |
| A．the discovery of microbes |
| B．Pasteur’s theory of disease |
| C．Leeuwenhoek’s contribution |
| D．the origin of the tiny organism |
| A．He admitted that many of his discoveries happened by chance. |
| B．He considered his work to be central to later medical breakthroughs. |
| C．He was greatly concerned with improving people’s living conditions. |
| D．He believed the sharing of knowledge was a key to scientific progress |
a. Magnifying lenses were built.
b. The “theory of disease” was put forward
c. Microbes were discovered in samples of waters.
d. Leeuwenhoek’s first microscopes were successfully developed.
e. Leeuwenhoek explained his thoughts upon his own contribution.
| A．a-d-c-e-b | B．d-a-c-e-b | C．a-c-d-b-e | D．d-a-e-b-c |
2 . Bricks are one of the oldest known building materials, dating back thousands of years. But researchers at Washington University in St. Louis have found a new use for bricks: as energy storage units. A team of engineers and chemists have found a way to transform an ordinary house brick into a pseudo-battery — allowing it to conduct and store electricity. The bricks are powerful enough to illuminate（点亮）an LED light bulb and cost only about $ 3 to make.
“I love the idea of adding value to things that are inexpensive, things that are affordable, things that we kind of take for granted, ”said Julio D’Arcy, an assistant professor of chemistry at Washington University and one of the researchers on this project.
The brick battery relies on the reddish pigment（色素）known as iron oxide, or rust, that gives red bricks their color. The scientists pumped the bricks with several gases that react with iron oxide to produce a network of plastic fibers. These microscopic fibers coat the empty spaces inside the bricks — and conduct electricity.
“What we’re trying to do is: we’re trying to make specialized plastics that are only used on the nano（纳米）scale — where we use very little of the plastic, and we can actually insert that plastic inside construction materials. ” The study is in the journal Nature Communications.
In the future, D’Arcy says, a brick wall could potentially serve a double purpose: providing structural support and storing electricity generated from renewable energy sources, such as solar panels.
The technology is still at least a few years away from being ready for the commercial market. And right now the energy storage capacity of the bricks is still pretty low — about 1 percent of a lithium battery. But the team is now testing ways to improve brick performance — because it looks like you can teach an old brick new tricks.
1. What appeals to Julio D’Arcy listing bricks as their subjects?| A．Their low expense. | B．Their common existence. |
| C．Their additional value. | D．Their internal composition. |
| A．Pump the brick with gases. |
| B．Color the brick red. |
| C．Produce microscopic fibers. |
| D．Cover its inner vacancy with microscopic fibers. |
| A．Construction materials possessing low energy storage capacity. |
| B．Construction materials generating renewable energy resources. |
| C．Construction materials used for electricity storage. |
| D．Construction materials with built-in common plastic. |
| A．Skeptical. | B．Objective. |
| C．Conservative. | D．Controversial. |
3 . My father, who was always drunk and angry, beat me more and more every day. He always locked the door when he went away and kept the key in his pocket. One day I found an old saw (锯子) that he hid in the roof. When I was alone in the house, I started to make a hole on the floor under the big table.
The next day my father said, "Huck, go to the river and catch some fish for breakfast. Quickly! And don't try anything. Remember, I’m watching you!"
While I was fishing by the river, I saw an empty boat nearby.
"A boat!" I thought, happily, "This is my chance to escape. I'll hide the boat near some trees and use it tonight!"
When my father went to town that afternoon, I got my saw and started to work on the hole. It was late afternoon when I finished making the hole.
"I did a good job, "I thought, looking at the hole. "Now I'll get my father's gun. I have a plan. "
I looked outside the window and there was nobody there. I quickly escaped through the hole. Then I ran into the woods to hunt a wild pig. Luckily, I found one. I shot it and took it back to the house and let the pig's blood fall on the wooden floor of the house. Then I pulled some of my hair out and put it on my father's ax (斧子)with some of the pig's blood.
I took the pig's body outside and put it in a big bag with some rocks, and threw it into the river.
"This way people will think ▲ !" I thought. "They'll come and look for my body in the river." This idea made me smile.
I waited until it was dark and got into the boat and went to Jackson's Island. I knew about Jackson's Island because Tom, Ben, Joe and I had a lot of fun adventures there.
(Adapted from The Adventures of Huckleberry Finn by Mark Twain）
1. What's the correct order of the following?①Huck hid a boat. ②Huck found a saw. ③Huck went fishing. ④Huck killed a wild pig.
| A．①④②③ | B．③②①④ | C．②①③④ | D．②③①④ |
| A．my father went away and I'm sad | B．the pig's blood is mine and I'm dead |
| C．I killed the wild pig and I'm brave | D．my friends helped me and I'm lucky |
| A．meet his friends | B．look for the treasure |
| C．take an adventure | D．escape from his father |
| A．Brave and clever. | B．Funny and helpful. |
| C．Lazy and careless. | D．Boring and stupid. |
4 . Zoos have been around for centuries — and they’ve changed a lot over the years. In the Middle Ages, wealthy people kept animals in their gardens. Public animal parks appeared in European cities in the late 1700s and early 1800s. The Philadelphia Zoo, the first in the United States, opened in 1874.
Until a few decades (十年) ago, most zoos were organized by creatures — monkeys in one area, cats in another, birds somewhere else, just like museum collections. In recent years, zoos have instead begun grouping animals that would normally interact (互相作用) in the wild. Moreover, instead of closing animals behind bars, designers are creating landscapes like the environments in which these creatures would naturally be found. Nearby signs provide information about the animals and their habitats in parts of the world where they normally live.
The Denver Zoo’s new Predator Ridge exhibit, for example, aims to teach visitors about Africa. Eight acres of land provide homes for 14 animal species, including lions, porcupines, cranes, and wild dogs. Plants from the region grow alongside African-like landform. Ten-foot-tall mounds (土墩) give lions a place from which to survey their surroundings, just as they would do in the wild.
Landscape design makes visitors to the Denver Zoo’s Predator Ridge exhibit feel like they’re really in Africa.
Animals in Predator Ridge can’t actually be mixed with one another, for safety reasons. But hidden deep channels and other smart features allow visitors to see all the animals at once. Different species can see each other too.
1. What is the passage mainly about?| A．The safety problem of zoos. |
| B．The living habits of zoo animals. |
| C．Changes of zoos over the time. |
| D．Protection of zoo animals. |
a. Different species were kept in a group.
b. Zoos were organized by species.
c. Natural environments were created in zoos.
d. Animals were kept in people’s gardens.
| A．b; d; c; a | B．d; a; c; b | C．b; d; a; c | D．d; b; a; c |
| A．protect the safety of visitors |
| B．create a natural environment for lions |
| C．separate lions from other animals |
| D．offer visitors a better view of lions |
| A．the Denver Zoo | B．the Predator Ridge exhibit |
| C．Africa | D．the ten-foot-tall mounds |
| A．the earliest zoos were probably rich people’s gardens |
| B．the Philadelphia Zoo is the first zoo in the world |
| C．the new Predator Ridge exhibit is held in Africa |
| D．more animals will be kept in zoos in the future |
5 . If you ever find yourself trapped in the wilderness without food, you'll have to figure out how to feed yourself. Many plants in the wild are edible, but many are also poisonous. So it is necessary to learn how to determine whether the plants you find can be eaten safely.
Avoid using this method without careful planning. Some plants can be deadly, and even if you follow these guidelines perfectly, there is always a chance that a plant will make you seriously ill. Prepare yourself for wilderness outings by learning about the local plants, and carry a guidebook to help you identify plants. Even if you are unprepared and cannot find food you know to be safe, remember that, depending on your activity level, the human body can go for days without food, and you’re better off being hungry than being poisoned.
Testing the plant in your mouth is dangerous, so go forward very slowly and carefully. First, hold a small portion of the prepared plant part against your lip for 3 minutes. Do not put the plant in your mouth. If you notice any burning, tingling (刺痛), or other reactions, discontinue testing. Second, place another small portion of the plant part on your tongue. Hold the plant on your tongue without chewing for 15 minutes. Discontinue testing if you notice any reaction. Third, chew the plant and hold it in your mouth for 15 minutes. Chew the plant well, and do not swallow. Discontinue testing if you notice any reaction. Fourth, swallow the small portion of the plant. Wait 8 hours. Do not eat or drink anything during this period except purified water. If you feel sick, immediately throw up what you eat and drink plenty of water. If activated charcoal (活性炭) is available, take that with the water.
1. What’s the meaning of the underlined world “edible” in paragraph 1?| A．Suitable for using as food. | B．Widely spread. |
| C．Existing in large quantities. | D．Not widely known. |
| A．Planning is unnecessary when using the method. |
| B．Not all plants in the wild can serve as food generally. |
| C．Suffering hunger can be more dangerous than testing plants. |
| D．Following the method perfectly can ensure safety. |
① wait and see ② chew it in the mouth③ put it on the tongue④ put it against lips ⑤ swallow it
| A．③④②①⑤ | B．④③②①⑤ | C．③④②⑤① | D．④③②⑤① |
| A．A student’s diary. |
| B．A science report. |
| C．A guide book for camping. |
| D．A doctor’ s notebook. |
Ken Roberts, the man who found the rabbit, had been looking for it nearly two years. Although he had been searching in the wrong area most of the time, he found it by logic, not by luck. His success came from the fact that he had gained an important clue at the start. He had realized that the words “One of Six to Eight” under the first picture in the book connected the rabbit in some way to Katherine of Aragon, the first of Henry VIII’s six wives. Even here, however, Williams had succeeded in misleading him. Ken knew that Katherine of Aragon had died at Kimbolton in Cambrideshire in 1536 and thought that Williams had buried the rabbit there. He had been digging there for over a year before he came up with a new idea. He found out that Kit Williams had spent his childhood near Ampthill, in Bedfordshire, and thought that he must have buried the rabbit in a place he knew well, but he still could not see the connection with Katherine of Aragon, until one day he came across two stone crosses in Ampthill Park and learnt that they had been built in her honor in 1773.
Even then his search had not come to an end. It was only after he had spent several nights digging around the cross that he decided to write to Kit Williams to find out if he was wasting his time there. Williams encouraged him to continue, and on February 24th 1982, he found the treasure. It was worth £3000 in the beginning, but the excitement it had caused since its burial made it much more valuable.
1. The underlined word “them” in paragraph 1 means .| A．readers of Masquerade | B．treasure hunts |
| C．Henry VIII’s six wives | D．red herrings |
| A．Two stone crosses in Ampthill | B．Stevenson’s Treasure Island |
| C．Williams’ hometown. | D．Katherine of Aragon |
| A．to tell about what happened in 1773. | B．to serve as a road sign in Ampthill Park. |
| C．to show respect for Henry VIII’s first wife. | D．to inform people where the gold rabbit was. |
a. Henry VIII’s six wives b. Katherine’s burial place at Kimbolton
c. Williams’ childhood in Ampthill d. Katherine of Aragon
e. stone crosses in Ampthill Park
| A．a-b-c-e-d | B．d-b-c-e-a | C．b-a-e-c-d | D．a-d-b-c-e |
7 . There has been a lot of publicity (宣传) recently surrounding 5G, the next generation of wireless technology for the world. But what is this technology and how might it change our lives?
What is 5G?
5G stands for fifth generation, meaning the next step in the progression of technology to replace the current 4G system. 4G was the replacement for 3G, which came after 2G, and so on. These systems are wireless computer networks. Earlier “G” systems were designed to improve mobile communication operations. Each new technology brought major improvements in speed and greatly increased network capacity. The new 5G system promises more of the same. It is expected to permit more users to do more things-at a faster rate. Higher internet speeds and larger network capacity should result in better performance for device users connected to 5G. However, technology experts say there is a major way that 5G is different than the earlier systems. It will move well beyond mobile network technology to affect many more devices and industries than other “G” versions.
When will it be available?
Before we can all use 5G, wireless companies and phone makers will have to complete and deploy (部署) a whole new system. New phones and communication equipment must be built. American wireless companies have been preparing for the new system for some time. They have been creating new network equipment and buying broadcasting space to carry 5G signals. They have built news G antennas(天线)to serve American cities and towns. Wireless providers will invest at least $275 billion n 5G-related networks in the United States, the industry group CTIA reported. The first U.S, launch of 5G is expected to happen sometime this year. Industry experts expect it will take a few more year to go nationwide. It will take even longer to reach rural areas. China is expected to launch 5G sometime in 2020, while European nations are likely to build their systems more slowly over time.
1. Which system is widely used nowadays?| A．5G. | B．2G. | C．3G | D．4G. |
| A．It will allow more users to do more things. | B．The internet speed will be much higher. |
| C．The users will spend much less money on it. | D．It will affect more devices and industries |
| A．5G system has nothing to do with phone makers. |
| B．There is much work to do before 5G comes into use. |
| C．New phones will be much smarter than those used now. |
| D．4G system will be stopped as soon as 5G comes into use. |
| A．USA→China→European nations. | B．China→USA→European nations. |
| C．USA→European nations→China. | D．European nations→China→USA. |
8 . By the mid-1920s, Pablo Picasso, one of the most influential artists of the 20th century. had been one of the most celebrated men .In 1957, when Pablo Picasso was in his seventh decade, he joked that x-ray technology might one day reveal a lost work underneath one of his early paintings. Today, that prediction became reality although the technology involved goes far beyond x-rays.
Using hyper-modern tools to peer into one of his Blue Period paintings, researchers have not only shown a hidden piece of art history in astonishing new detail, they have revealed a striking amount of insight into Picasso's creative process and style.
The investigation focused on"La Miséreuse accroupie, "or" Crouching Woman, "painted in 1902 and currently owned by the Art Gallery. The painting, an oil on canvas (画布) piece drawing a crouching (蜷坐的) woman who wears a long coat, shows Picasso’s typical Blue Period colors: grey, green, blue and white. It shows that the innovative modernist was inspired by the lines of an underlying landscape painted by an unknown artist.
The analysis also exposes several changes to the woman described in the painting,many of which Picasso ultimately abandoned. Researchers released their findings on Saturday’s press conference of the American Association for the Advancement of Science in Austin, Texas. “We think now it's a landscape painted by someone enrolled at the fine arts academy in Barcelona, someone in Picasso’s orbit but not in his close circle, ”says Kenneth Brummel, assistant curator of modern art for the Art Gallery of Ontario.
As to why Picasso would have “recycled” another artist’s canvas(油画布), reasons could range from economic necessity, as a young artist still establishing himself, to deep inspiration driven by the lines of the image already laid down there. Picasso often re-used canvases for this reason."
“He didn't shave off the canvas or put a preparatory layer over it,” Brummel says.“ Picasso saw this landscape, found inspiration, and decided he was going to paint it immediately."
1. According to the text ,the most likely process of Picasso's painting?①Picasso reused another artist's canvas.
②Inspired by a landscape painting, Picasso decided to paint one too.
③Picasso painted a woman on the landscape painting.
④Not happy with the landscape, Picasso covered it totally.
⑤Picasso made changes to the woman
| A．②③④ | B．④②③ |
| C．①③⑤ | D．②①④ |
| A．He reused it because he hated wasting anything. |
| B．He hid his own paintings beneath the landscape. |
| C．He took the advantage of it and created a new one. |
| D．He kept it to himself with the permission of its owner. |
| A．People often celebrated Picasso’s success. |
| B．Picasso was not well-off when he started his career. |
| C．Picasso became successful overnight. |
| D．Picasso was good at imitating other artists’ works. |
| A．Picasso's predication turned out to be joke. |
| B．High technology uncovered art mysteries. |
| C．Seeing is not always believing. |
| D．Lost Artwork Found Under Famous Picasso Painting. |
9 . Ieoh Ming Pei, one of the last great modernist architects, has died aged 102.Although he worked mostly in the United States, Pei will always be remembered for a European project: his redevelopment of the Louvre Museum in Paris in the 1980s.
Pei was the first foreign architect to work on the Louvre in its long history, and initially his designs were fiercely opposed.But in the end, the French — and everyone else — were won over.His glass pyramid outside the Louvre, completed in 1989, is now one of Paris' most famous landmarks.
Pei was born in China in 1917 into a wealthy family.His father was a banker.His artistic mother—a calligrapher and musician—had the greater influence on him.Despite not speaking English, he moved to the US at the age of 18 to study at Pennsylvania, MIT and Harvard.He worked as a research scientist for the US government during World War Two, and went on to work as an architect, founding his own firm in 1955.He carried on working well into old age, creating one of his most famous masterpieces—the Museum of Islamic Art in Doha, Qatar—in his 80s.
He has designed buildings, hotels, schools and other structures across North America, Asia and Europe.His other work includes Dallas City Hall and Japan's Miho Museum.His style was influenced by his love of Islamic architecture.His favoured building materials were glass and steel, with a combination of concrete.
He won a variety of awards and prizes for his buildings, including the AIA Gold Medal, the Praemium Imperiale for Architecture.In 1983 Pei was given the fifth Pritzker Architecture Prize for giving the 20th century some of its most beautiful interior spaces and exterior forms.He used his $100,000 prize money to start a scholarship fund for Chinese students to study architecture in America.In person, Pei was always neatly dressed, good-tempered, charming and unusually modest.
1. What do we know about Pei and his work on the Louvre Museum?| A．The French approved of his designs at first. |
| B．Pei was the only foreign expert employed by the Louvre. |
| C．Pei made use of glass in his designs. |
| D．Pei retired after completing the work. |
①He received the Pritzker Architecture Prize.
②He founded his own firm.
③He created the Museum of Islamic Art.
④He worked as a research scientist.
| A．①③②④ | B．④①②③ |
| C．④②①③ | D．①④③② |
| A．Productive and humorous. | B．Generous and modest. |
| C．Determined and outgoing. | D．Attractive and responsible. |
| A．Louvre Pyramid Architect Dies Aged 102 | B．Prizes Awarded to Pei |
| C．Landmarks Created by Pei | D．A Famous Architect Passed Away |
10 . One advantage of the Internet is shopping conveniently online for clothes; one disadvantage of the Internet is also shopping conveniently online for clothes.
“Nothing fits,” said Lam Yuk Wong, a senior in electrical and computer engineering at Rice University. “Everyone says this. They order clothes and they don’t fit. People get very unhappy.”
Wong and her design partner, Xuaner “Cecilia” Zhang, are Team White Mirror, creators of what they call a “virtual (虚拟) fitting room”. Their goal is simple and consumer-friendly: to let online clothing shoppers have a perfect fit and a perfect look when shopping every time.
Both women are from China, Wong from Hong Kong and Zhang from Beijing. They both order most of their clothing online. They got the idea from their own experience as consumers and from listening to the complaints of friends and relatives. “They say, ‘The color is wrong’ or ‘I got the right size but it still does not fit.’ We want to make it like you’re in the store trying on the clothes,” Zhang said.
Using a Kinect developed by Microsoft for use with its Xbox 360 video game player,
Zhang scans Wong and turns her image into, in effect, a virtual model, keeping Wong’s dimensions (尺寸), and even her skin and hair color. “We put the clothes on the shopper’s 3-D body models and show how they look when they are dressed,” Wong said. So far, Wong and Zhang have adapted the software to show dresses and shirts, and they are now working on shorts.
Asked if she thought men as well as women might be interested in using their virtual fitting room, Wong said, “I think their wives will care about this, so it will also be important to men.”
1. Why is shopping conveniently online for clothes a disadvantage?| A．Clothes bought online may not fit. |
| B．Students may easily get addicted to it. |
| C．It attracts more online clothing shoppers. |
| D．It causes shoppers to waste too much money. |
| A．the Xbox 360 video game player | B．a program at their university |
| C．some shop-owners’ complaints | D．their shopping experiences |
| A．scanning—trying on clothes—getting images |
| B．trying on clothes—getting models—scanning |
| C．scanning—getting models—trying on clothes |
| D．trying on clothes—getting images—scanning |
| A．It is perfectly developed. |
| B．It will have its market share. |
| C．It is limited to women shoppers. |
| D．It is like a kind of video game player. |
