Bedazzling (眼花缭乱) with their bright colors and eye-catching displays, fireworks light up our night skies during the holidays. However, these crowd-pleasers can have some damaging side effects.
Once a firework is set off, it only takes a couple of seconds before smoke, dust and harmful chemicals are let out into the atmosphere. The loud booming noises are caused by gunpowder. While the sounds may excite some people, they can be frightening to domestic and wild animals — as well as some humans.
The pretty colors you see are a result of more chemicals. Barium, added to make green, is known for its poisonous and radioactive qualities. Blue comes from copper compounds. Cadmium, lithium and lead — all found in fireworks — have been linked to diseases, such as allergies and skin rashes in both humans and animals. Acid rain has been linked to gases given off by fireworks, which sometimes go beyond the toxin(毒素) limits of the United States Clean Air Act.
Once all those chemicals come back down to the ground, they can cause problems too. Debris (碎片) from the fireworks falls to the ground, where animals can burn their paws or noses on piping hot pieces. Humans also are at risk of stepping on or picking up something sharp or hot. Meanwhile, debris that finds its way into waterways can damage animal habitats and water supply sources.
Instead of setting off fireworks, try to come up with some new ways for fun. Here are some ideas to get you started:
• Sky lanterns — a tradition that originated long ago in the most-populated Asian country.
• Party crackers — a favorite in the United Kingdom — give you noise and surprises without the mess of fireworks. You can make your own or buy eco-friendly crackers.
• Want noise excitement with less volume? Consider a fireworks sound recording beforehand or break out the party horns (号角) and blow up a storm!
46. The advantages of fireworks can be seen below EXCEPT that _____.
A. the special sounds of fireworks excite people
B. debris from fireworks can even find its way into water
C. the pretty and bright colors add to the beauty of night skies
D. fireworks are enjoyed as one of the crowd-pleasers
47. Which of the following is NOT true according to the passage?
A. Copper compounds are needed to make green in fireworks.
B. Chemicals in fireworks are both poisonous and dangerous.
C. Too much gases from fireworks can result in acid rain.
D. Chemicals in fireworks are harmful in the air and on the ground.
48. All the underlined words are probably _____________.
A. mineral materials B. tiny solids
C. chemical elements D. broken pieces
49. What is implied from the passage?
A. Gunpowder in fireworks makes loud booming noises.
B. It must be Indians who first started to hang sky lanterns.
C. Fireworks does less harm in the air than on the ground.
D. Fireworks can even break the balance of nature.
50. What can be concluded as the writer’s attitude towards fireworks?
A. It is not allowed to set off fireworks except during the holidays.
B. Fireworks should be banned and replaced by some other means.
C. Night is the best time to set off fireworks and see the pretty colors.
D. You cannot set off fireworks unless you come up with new ways.
Many psychologists in the early twentieth century believed that humans use only 10 percent of their brains, and even the great Albert Einstein once wrote that most people use only a small portion of the grey matter between their ears. It’s a theory that has often been put forward in television documentaries; magazines, advertisements and books over the past century.
But nearly all scientists now agree the 10 percent theory is completely unfounded. In fact, they question how this figure was ever arrived at in the first place and what areas of the brain are supposed to be unneeded. The theory supposes that if 90 percent of the brain were removed, a person would Still be able to function normally, while in reality it is known that damage to even a small area of the brain can result in extremely serious physical injury different activities and that many areas of the brain are used at the same time for some complex activities or thought processes.
Throughout the course of one day, most .areas of the brain are active at some time, even during sleep. The 10 percent theory suggests that certain areas o’ the brain are not used, but scans slow activities throughout the entire brain and not in any separate part. The final argument against the 10 percent theory is the fact that doctors carefully map the brain before removing brain cancers so that they don’t affect other essential areas.
From an evolutionary point of view, it’s highly unlikely butt our comparatively larger brains would have evolved from our ancestors if the extra areas were not needed. In fact, there is absolutely no evidence support the 10 percent theory.How did the 10 percent theory get such widespread popularity?
| A．It was promoted in various types of copular media. |
| B．Albert Einstein argued strongly in support. |
| C．It was proven in scientific research. |
| D．Few people could prove it wrong. |
The underlined word "unfounded" is chest in meaning to _________.
| A．undiscovered | B．unproven | C．unknown | D．unnecessary |
Which of the following is true according to the writer?
| A．We use less than 10% of our brains. |
| B．Most brain disorders affect the same part of the brain. |
| C．The brain is less active during times of sleep. |
| D．The 10 percent theory does not make evolutionary sense. |
What can we infer from the passage?
| A．People today use more of their brain than in the past. |
| B．Scientific opinion about the topic of brain use is equally divided. |
| C．Our understanding of the brain has changed greatly in the past decades. |
| D．Modern scientists have a complete picture of how the brain works. |
What is the main purpose of the passage?
| A．To present two sides of brain theory. |
| B．To criticize the 10 percent theory. |
| C．To explain how brain works. |
| D．To describe the history of brain research. |
The dirty, homeless man sat on the pavement, staring at the atones. He thought back more than twenty years to when he was a boy living in a small red brick house on this very street. He recalled the flower garden, the swing his dad made, and the bike he had saved up for months to buy.
The man shrugged impatiently, for the brightness of those pictures hurt him, and his memory travelled on another ten years. He had a job by then, plenty of friends and started to come home less. He did not really want to remember those years, nor the day when, because o’ debts, he had gone home planning to ask for money. He felt embarrassed, but he knew exactly where his dad kept the money. When his parents stepped out of the room, he took what he wanted and left.
That was the last time he had seen them. Ashamed, he went abroad, and his parents knew nothing about the years of wandering or time in prison. But locked in his cell he often thought of home. Once free, he would love to see his parents again, if they were still alive, and still wanted to see him.
When his prison time was up, he found -a job, but couldn’t settle. Something was drawing him home. He did not want to arrive penniless, so he hitchhiked most of the long journey back. But less than a mile from his destination he started to feel sick with doubt. Could they ever accept this man who had so bitterly disappointed them?
He spent most of that day sitting under a tree. That evening he posted a letter which, although short, had taken him hours to write. It ended with:
I know it is unreasonable of me to suppose you want to see me ... so it’s up to you. I’ll come early Thursday morning. If you want me home, hang a white handkerchief in the window of my old bedroom. If it’s there, I’ll come in; if not, I’ll wave good-bye and go.
And now it was Thursday morning and he was sitting on the pavement at the end of the street. Finally he got up and walked slowly toward the old house. He drew a long breath and looked.
His parents were taking no risks. ________________________________________________
_______________________________________________________________________________
The man threw his head back, gave a cry of relief and ran straight through the open front door. Why did the man shrug impatiently (paragraph 2) while he was thinking of his childhood?
| A．The thoughts made him angry. |
| B．He felt he had wasted time. |
| C．He was anxious to go home. |
| D．The sweet memory caused him much pain. |
Why did it take him hours to write the letter?
| A．He doubted if his parents still lived in that house. |
| B．He had much news to tell his parents. |
| C．He felt ashamed to ask for forgiveness. |
| D．He was longing to return home and felt excited. |
In what order did the following events take place?
a. He took the money from his parents.
b. He bought a bicycle with his savings.
c. He was sentenced to prison.
d. He wrote the letter home.
e. He sat on the pavement.
f. He hitchhiked back home.
| A．b, a, c, d, e, f | B．b, a, c, f, d, e |
| C．a, c, b, d, f, a | D．a, d, b, c, e, f |
Which of the following best fits into paragraph 8 ?
| A．Every inch of the house was covered in white. Sheets, pillowcases and table clothes had been placed on every window and door, making it look like a snow house. |
| B．The house before him was just as he remembered: the red bricks, the brown door and nothing else. |
| C．A colourful blanket was over the front door. On it, in large letters, was written, "Welcome home, son |
| D．A police car was parked in the drive way, and two officers stood at the front door. |
The best title of the passage is _______.
| A．Sweet Memory | B．White Handkerchief |
| C．Abandoned Son | D．Leaving Home |
When movie star Scarlett Johansson was photographed naming in Los Angeles recently, she attracted a lot of attention; for the 27-year-old actress was wearing Vibram FiveFingers, so called because they look more like gloves than shoes, with a space for each toe.
Strange though they may look, these so-called barefoot shoes, which reproduce the effect of barefoot running but with less pain, are just one brand in a range of minimalist footwear. These super-thin sports shoes are causing a stir in the world of running and fitness. Why? Because some experts believe they could make you a better, more efficient runner and that traditional trainers could be doing you more harm than good.
"Wearing a shoe that has lots of cushioning and support affects the way your body naturally moves and studies suggest that this carries a higher risk of injury," explains Matt Wallden, an athlete performance expert. "But with barefoot shoes, the foot can actually feel the firmness and shape of the ground, which allows your body to respond effectively.’"
But before you rush out to invest in minimalist footwear, be careful. These kinds of shoes are not meant for everyone, or at least not straight away.
"Ordinary sports shoes with support are good for beginners whose bodies are not used to the impact of running," explains Patrick Davoren, former Olympic athlete. "It you are not in great condition, then running in minimalist footwear may cause injuries and will turn a lot of people off exercise and running.
If you are currently injured, and figures show that in any given year 65% of all runners are, it can be tempting to try anything that promises to get you back on the road, trail, or beach. But barefoot running is not a method of treating injury nor is it a magical way of suddenly turning you into a great athlete.
Even if you’re used to running, when you start using minimalist shoes you should build up your distance gradually. Start_off’by doing just 10% of what you’d normally run and increase the distance by no more than 10% every week. And a word of warning - you may never have soft feet againThe Vibram FiveFingers are shoes ______.
| A．specifically designed for women |
| B．that have lots of cushion inside |
| C．safest for people who enjoy sports |
| D．that are much thinner than normal sports shoes |
The underlined word "they" in paragraph 2 refers to ________.
| A．experts | B．feet | C．shoes | D．runners |
According to Matt Wallden, the new shoes ________.
| A．make feet more sensitive to the running surface |
| B．will produce immediate improvements |
| C．force your body to move less naturally |
| D．increase the chances of getting hurt |
The author suggests that new users of Vibram FiveFingers should ________.
| A．run in the shoes every day at top speed |
| B．begin with a shorter running distance than normal |
| C．occasionally run barefooted to harden their feet |
| D．make sure they are already very fit before using them |
Where would you probably read this article?
| A．A travel book. | B．A movie website. |
| C．A sports magazine. | D．A science journal. |
Beatrix Potter was a great English writer and artist, best known for her children’s books featuring animal characters such as in the children’s classic -- The Tale of Peter Rabbit.
Beatrix was born into a rich London-based family where she was tutored by very strict private teachers and so spent her youth isolated from other youngsters.
During her youth she had a lot of pets and spent vacations in Scotland and also the Lake District. It was at the Lake District that she developed a love of wildlife. She studied the area’s natural wonders carefully and painted them continuously. But her old-fashioned, Manchester-born parents discouraged her intellectual improvement, thinking it inappropriate for a young lady. However, her study and watercolour paintings of wild mushrooms made her widely respected within the field of biology.
In her 30’s, Beatrix Potter wrote the remarkably successful kid’s book, The Tale of Pew Rabbit. Close to that time she became secretly engaged to her publisher Norman Warne. This caused a great disagreement with her parents, who did not approve of Beatrix getting married to somebody of lower social status. Sadly, Warne died before the marriage ceremony.
Ultimately Beatrix Potter began writing and also illustrating (绘图) kid’s books full-time. Using profits from her books, Beatrix grew to become economically independent of her parents and was eventually in a position to buy Hill Top Farm in the Lake District. She extended the property with additional purchases of neighbouring land over time. In her 40’s, Bestrix married William Heelis, a local lawyer. She ended up becoming a sheep breeder and farmer while continuing to publish as well as illustrate books for children. In all she authored 23 publications.
Beatrix died on December 22, 1943, and left the majority of her property to the National Trust. Her books carry on selling well globally, in many different languages. Her stories have been retold in numerous formats including a ballet, movies, and cartoons.
Such is her reputation, and that of the characters from her publications, that many Beatrix Potter statues have been created. These tiny Beatrix Potter statues which include pretty much all the actual characters in her publications have become highly valued by art collects and fans of her literature throughout the world. What can we learn about Beatrix Potter’s early life?
| A．She learned drawing skills from her tutors. |
| B．She was very sociable and outgoing. |
| C．She was greatly inspired by the beauty of nature. |
| D．She was encouraged to think creatively and independently. |
Why did Beatrix Potter’s parents oppose the idea of her marriage to Norman Warne?
| A．They did not believe she was mature enough to get married. |
| B．They thought Warne was only interested in Beatrix Potter’s wealth. |
| C．They believed that the couple’s characters were mismatched. |
| D．They considered Warne to be too common for their daughter. |
According to the passage, which part of the UK did Beatrix Potter love most?
| A．Manchester. | B．Scotland. | C．The Lake District. | D．London. |
In which of the following areas did Beatrix Potter show an interest during her life?
| A．Writing, biology, farming. |
| B．Drawing, nature, ballet. |
| C．Movies, farming, drawing. |
| D．Writing, mushrooms, travel. |
What is the function of the last two paragraphs of the passage?
| A．To describe the consequences of Beatrix Potter’s death. |
| B．To present the lasting cultural influence of Beatrix Potter and her works.. |
| C．To show the changes in attitude towards Beatrix Potter’s works over the past years. |
| D．To criticize the commercialization of Beatrix Potter’s characters since her death. |
Some plants get so hungry they eat flies, spiders, and even small frogs. What’s more amazing is that these plants occur naturally (in special environment) in every state. In fact, they’re found on every continent except Antarctica.
You’ve probably seen a Venus’ flytrap. It’s often sold in museum gift stores, department stores, and even supermarkets. A small plant, it grows 6 to 8 inches tall in a container. At the end of its stalks（茎）are specially modified leaves that act like traps. Inside each trap is a lining of tiny trigger(触发) hairs. When an insect lands on them, the trap suddenly shut. Over the course of a week or so, the plant feeds on its catch.
The Venus’ flytrap is just one of more than 500 species of meat-eating plants, says Barry Meyers-Rice, the editor of the International Carnivorous Plant Society’s Newsletter. Note: Despite any science –fiction stories you might have read, no meat-eating plant does any danger to humans.
Dr. Meyers-Rice says a plant is meat-eating, only if it does all four of the following: “attract, kill, digest, and absorb” some forms of insects, including flies, butterflies, and moths. Meat-eating plants look and act like other green plants ---well, most of the time.
All green plants make sugar through a process called photosynthesis(光合作用). Plants use the sugar to make food. What makes “meat-eating” plants different is their bug-catching leaves. They need insects for one reason: nitrogen(氮). Nitrogen is a nutrient that they can’t obtain any other way. Why almost all green plants on our planet get nitrogen from the soil “Meat-eating” plants can’t. They live in places where nutrients are hard or almost impossible to get from the soil because of its acidity(酸度). So they’ve come to rely on getting nitrogen from insects and small animals. In fact, nutrient-rich soil is poisonous to “meat-eating” plants. Never fertilize(施肥)them! But don’t worry, either, if they never seem to catch any insects. They can survive, but they’ll grow very slowly.According to the passage, carnivorous plants.
| A．only grow in wild field | B．are rare to see |
| C．are as common as flies | D．cannot grow on Antarctica |
Venus’ flytrap preys on insects by .
| A．its numerous long stalks | B．a container where it grows |
| C．its insect-catching leaves | D．the lining of tiny trigger hairs |
We can conclude from the third paragraph that_____.
| A．carnivorous plants are dangerous |
| B．carnivorous plants are fictional |
| C．carnivorous plants occasionally eat books |
| D．carnivorous plants are harmless to humans |
In the eyes of the author, which of the following statements is TRUE?
| A．Carnivorous plants cannot grow in acid soil. |
| B．Carnivorous plants can grow in nutrient-poor soil. |
| C．Carnivorous plants will die if they cannot catch any insects |
| D．Carnivorous plants can get nitrogen from nutrient-rich soil. |