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.
Every year many students went to the college bookstore to purchase the different textbooks that they need for their classes. Little do these students realize that, in doing so, they are throwing good money away. It may sound unbelievable but textbooks, in some cases, actually cost as much as, if not more than, college fees.
Many people think that college bookstores are the most convenient source for textbooks. Titles are usually kept and students may purchase new textbooks or choose to buy second-hand books and save money. But the money saved by purchasing second-hand textbooks from college bookstores is small compared to the amount they could save by shopping online.
More and more online booksellers have begun selling textbooks at heavily discounted prices. Online second-hand bookstores are another source for college books as they keep a large number of textbooks, which means sizable savings for students. Students should avoid purchasing their textbooks at the first store that they surf online since there are so many ‘unreal’ booksellers on the Net. Price isn't the only factor to consider when making an online purchase. Students should also consider shopping costs and delivery time when making their decision.
Online auctions(拍卖) are another option for students seeking a bargain. This option, however, has its pros and cons. A plus is that students can get incredibly cheap books. One problem is that while online bookstores have a system in place that ensure you receive your order within a reasonable amount of time, with an auction purchase, however, you must depend on the auction seller's timetable.
One way that students can really save is by getting books for free. Project Gutenberg is one resource that English majors will find invaluable. Here students can legally download a huge collection of classic novels. In the past students needing help with their studies would often have to spend a lot of money buying expensive study guides. Today that is no longer the case. Cash-strapped students can now visit the website SparkNotes for free downloadable study guides as well as classics. Which of the following is the best title of this passage?
| A．Learning to Save on Textbooks | B．Why Buy Textbooks |
| C．Online Shopping | D．Tips for Buying Secondhand Textbooks |
Which of the following is NOT mentioned as a source to obtain textbooks ?
| A．College bookstores. | B．Online used bookstores. |
| C．Online auctions. | D．Second-hand bookstore centres. |
The underlined expression “pros and cons” (paragraph 4) is closest in meaning to __________.
| A．professionals and conservatives | B．joy and sadness |
| C．advantages and disadvantages | D．processes and conditions |
According to the passage, Project Gutenberg is probably __________.
| A．a government project aimed at helping English majors |
| B．a project to help poor students get free learning materials |
| C．a website for English majors to get the guides from language experts |
| D．a website for students to get free sources for English learning |
From the passage, we can learn that__________.
| A．the cost of textbooks in college is low compared to the amount spent on tuition |
| B．online auctions are perfect for students seeking text books |
| C．students should visit many websites before buying their books |
| D．students should consider shopping costs and delivery time above all else when making their buying decision |
Mark and his brother Jason both were looking at the shining new computer enviously. Jason was determined not to go against their father’s wishes but Mark was more adventurous than his brother. He loves experimenting and his aim was to become a scientist like his father.
“Dad will be really mad if he finds out you’ve been playing with his new computer” Jason said, “He told us not to touch it.”
“He won’t find out,” Mark said, “I’ll just have a quick look and shut it down.”
Mark had been scolded before for touching his father’s equipment. But his curiosity was difficult to control and this new computer really puzzled him.
It was a strange-looking machine — one his dad had brought home from the laboratory where he worked. “It’s an experimental model,” his father had explained, so don’t touch it under any circumstances.” But his father’s warning only served to make Mark more curious. Without any further thought, Mark turned on the power switch. The computer burst into life and seconds later, the screen turned into colours, shifting and changing, and then two big white words appeared in the centre of the screen: “SPACE TRANSPORTER.”
“Yes!” Mark cried excitedly, “It’s a computer game. I knew it! Dad’s only been pretending to work. He’s really been playing games instead!” A new message appeared on the screen:
“ENTER NAMES
VOYAGE １
VOYAGE ２
Mark’s finger flew across the keyboard as he typed in both of their names.
“INPUT ACCEPTED.
START TRANSPORT PROGRAM.
AUTO-RETRIEVE INITIATED(自动回收程序已启动).”
The screen turn even brighter and a noise suddenly rose in volume.
“I think we’d better shut it off, Mark,” Jason yelled out in terror, reaching for the power switch. A beam(光束) of dazzling white light burst out of the computer screen, wrapping the boys in its glow(光芒)，until they themselves seemed to be glowing. Then it died down just as suddenly as it had burst into life. And the boys were no longer there. On the screen, the letters changed：
“TRANSPORT SUCCESSFUL．
DESTINATION: MARS.
RETRIEVE DATE: 2025Why did Mark touch the computer against his father’s warning?
| A．He wanted to take a voyage. | B．He wanted to practice his skills. |
| C．He was so much attracted by it. | D．He was eager to do an experiment. |
Where did the boy’s father most likely work?
| A．In an electronic factory. | B．In a computer company. |
| C．In a scientific research center. | D．In an information processing center. |
Mark thought “SPACE TRANSPORTER” on the screen was the name of ________.
| A．a computer game | B．a company website |
| C．a software producer | D．an astronomy program |
Why did Jason want to shut off the computer?
| A．He was afraid of being scolded. |
| B．He didn’t like the loud noise and light. |
| C．He didn’t want to play games. |
| D．He was afraid something dangerous might happen. |
What happened to the boys at the end of the story?
| A．They were blown into the air. |
| B．They were sent to another planet. |
| C．They were hidden in the strong light. |
| D．They were carried away to another country. |
Everyone has got two personalities(个性)—one shown to the world and the other secret and real. You don't show your secret personality when you are awake because you can control your behavior, but when you are asleep, your sleeping position shows the real you. In a normal night, of course, people frequently change their position. The important position is the one that you go to sleep in.
If you go to sleep on your back, you are a very open person. You normally trust people and you are easily influenced by fashion or new ideas. You don't like to upset people, so you never express your real feeling. You are quiet, shy and you aren’t very confident.
If you sleep on your stomach, you are a rather secretive person. You worry a lot and you are always easily upset. You're very stubborn(顽固的), but you aren’t very ambitious(有野心的). You usually live for today, not tomorrow. This means that you enjoy having a good time.
If you sleep curled(卷曲) up, you are probably a very nervous person. You have a low opinion of yourself, so you are often defensive. You are shy and you don't normally like meeting people. You prefer to be on your own. You are easily hurt.
If you sleep on your side, you have usually got a well-balanced(通情达理的) personality. You know your strengths and weaknesses. You are usually careful. You have a confident personality. You sometimes feel anxious, but you don't often get depressed(沮丧的). You always say what you think even if it annoys people.What would be the best title for the passage?
| A．Two personalities. |
| B．Proper sleeping positions. |
| C．Sleeping positions and personalities. |
| D．Ways to tell your real personalities. |
According to the text, you naturally show your secret personality when_____.
| A．you are awake |
| B．you are asleep |
| C．you can't control your behaviour |
| D．you change your sleeping position |
Tom is used to sleeping on his side. Which of the following can NOT describe him?
| A．Well-balanced. | B．Careful. |
| C．Selfish. | D．Anxious sometimes. |
If you are shy and often defensive, you are used to sleeping____.
| A．on your back | B．curled up |
| C．on your stomach | D．on your side |
Obama Still Smokes in Secret
US President Barack Obama has just made life more difficult for cigarette makers．He has just signed a law that will set tough new rules for the tobacco industry．The new law gives the US Food and Drug Administration the power to strictly limit the making and marketing of tobacco products．
At a White House signing ceremony Monday, Obama said that he was among the nearly 90% of smokers who took up the habit before their 18 th birthday．
Obama, who has publicly struggled to give up smoking, said he still hadn’t completely kicked the habit．Every now and then he still smokes in secret．
“As a former smoker I struggle with it all the time．Do I still smoke sometimes? Yes．Am I a daily smoker, a constant smoker? No．” Obama said at a news conference．
“I don' t do it in front of my lads．I don’t do it in front of my family．I would say that I am 95% cured, but there are times when I mess up, " he said．
"Once you go down this path, it' s something you continually struggle with, which is exactly why the law is so important．The new law is not about me, it' s about the next generation of kids coming up．What we don ' t want is kids going down that path," he said．
Nearly 20% of Americans smoke and tobacco use kills about 440,000 people a year in the United States due to cancer, heart disease, and other serious diseases．The new law makes life difficult for ．
| A．Obama | B．tobacco industry |
| C．White House | D．US Food and Drug Administration |
What do we know about Obama?
| A．He no longer smokes． |
| B．He still smokes as usual． |
| C．He began to smoke at eighteen． |
| D．He is trying hard to give up smoking． |
According to the passage, Obama is most concerned about ．
| A．children | B．officials | C．his family | D．businessmen |
The Body Temperature
The temperature of your body should be always just the same, no matter whether the weather is hot or cold. That is why the doctor uses his thermometer （温度计）when your are sick.
The body keeps the same temperature all the time ,because it balances the heat it produces and it gives off. It is always burning up food and , producing heat. It can produce heat faster when it needs to give off heat than when it becomes too warm. Let’s see how this happen.
The heat of your body is given off mainly through the skin. When you are cold, your skin is tight and shows “good flesh”. When you get chilly, you must dance around to keep warm or else you will shiver. Then your muscles begin to work, burn up fuel, and produce more heat. It is not pleasant to shiver, so you usually prefer to warm up by exercise, or put on more clothes to keep heat in.
When you are warm, the skin is loose and soft. It is so supplied with blood that heat is given off rapidly. If you get too warm, you begin to sweat ,and more body heat is used in evaporating the moisture（水蒸气） from your skin. You wear less clothing, too, in warm weather or warm room, so that warm can be given off freely. You feel less like exercising because your body is warm already, and the extra heat produced by exercise makes you uncomfortable.
You can see from the way you feel differently in different kinds of weather. In summer, when it is warm, you feel tired and lazy. You do not care to work or play, but enjoy lying and doing nothing. When you get out of doors in winter, the cold air makes you feel lively. You want to play.Which is another title suitable of the passage?
| A．The Patients’ Temperature |
| B．The Body Temperature Should Always Be the Same |
| C．The Body Temperature |
| D．The Temperature and Your Skin |
How does the body keep the same temperature all the time?
| A．It is always producing heat from food. |
| B．It gives off the heat produced in it. |
| C．It balances the heat it gets and loses. |
| D．It stops producing heat when necessary. |
When one feels chilly, which of the following will he do?
| A．His skin becomes tight in order to keep warm. |
| B．He does exercises to make his muscle produce more heat. |
| C．He puts on more clothes to keep heat in. |
| D．He keeps shivering to produce more heat. |
When in summer, people prefer to_____.
| A．work | B．play | C．do exercise | D．relax and do nothing |
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