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 . 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. |
4 . When other nine-year-old kids were playing games, she was working at a petrol station. When other teens were studying or going out, she fought to find a place to sleep on the street. But she beat these terrible setbacks（挫折） to win a highly competitive scholarship and gain entry （录入）into Harvard University. And her amazing story has inspired a movie, “Homeless to Harvard: The Liz Murray Story”.
Liz Murray, a 22-year-old American girl, has been writing a real-life story of willpower and determination. Liz grew up with two drug-addicted parents. There was never enough food or warm clothes in the house. Liz was the only member of the family who had a job. Her mother had AIDS and died when Liz was just l5 years old. The effect of that loss became a turning point in her life. Connecting the environment in which she had grown up with how her mother had died. She decided to do something about it.
Liz went back to school. She threw herself into her studies, never telling her teachers that she was homeless. At night, she lived on the streets. “What drove me to live on had something to do with understanding, and by understanding that there was a whole other way of being. I had only experienced a small part of the society,” she wrote in her book Breaking Night.
She admitted that she used envy （妒忌）to drive herself on. She used the benefits that come easily to others, such as a safe living environment, to encourage herself that “next to nothing could hold me down”. She finished high school in just two years and won a full scholarship to study at Harvard University. But Liz decided to leave her top university a couple of months earlier this year in order to take care of her father, who has also developed AIDS. “I love my parents so much. They are drug addicts. But I never forget that they love me all the time. ”
Liz wants moviegoers（常看电影的人） to come away with the idea that changing your life is “as simple as making a decision”.
1. In which order did the following things happen to Liz?
a. Her mother died of AIDS.
b. She got admitted into Harvad.
c. She worked at a petrol station.
d. The movie about her life was put on.
e. She had trouble finding a place to sleep.
| A．c, a, e, b, d | B．a, b, c, e, d |
| C．c, d, b, a, e | D．b, e, a, d, c |
| A．Envy and encouragement. |
| B．Willpower and determination. |
| C．Decisions and understanding |
| D．Love and respect for her parents. |
| A．She had little experience of social life. |
| B．She could hardly understand the society. |
| C．She would do something for her own life. |
| D．She needed to travel more around the world. |
| A．Why Liz loved her parents so much. |
| B．How Liz made efforts to change her life. |
| C．What a hard time Liz had in her childhood. |
| D．How Liz managed to enter Harvard University. |
Dr. Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain.
Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he operated on them. He made the monkeys' blood go through a machine. The machine cooled the blood. Then the machine sent the blood back to the monkeys' brains. When the brain' s temperature was 10°C, Dr. White stopped the blood to the brain. After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them.
1. The biggest difficulty in operating on the damaged brain is that _______.
| A．the time is too short for doctors |
| B．the patients are often too nervous |
| C．the damage is extremely hard to fix |
| D．the blood-cooling machine might break down |
| A．taking the blood out of the brain |
| B．trying the operation on monkeys first |
| C．lowering the brain' s temperature |
| D．having the blood go through a machine |
a. send the cooled blood back to the brain
b. stop the blood to the brain
c. have the blood cooled down
d. operate on the brain
| A．a,b,c,d | B．c,a,b,d |
| C．c, b, d, a | D．b, c, d, a |
| A．can last as long as 30 minutes |
| B．can keep the brain's blood warm |
| C．can keep the patient's brain healthy |
| D．can help monkeys do different jobs |
