Can you remember a morning when you’ve woken up to the ring of your alarm clock and wished you could stay in bed? You haven’t slept well, your hair is a mess. Worse, you can’t stop yawning. Yawning is universal to humans and many animals. Cats, dogs and fish yawn just like humans do! Yawning is an involuntary(无意识的,不自觉的) action during which you open your mouth and breathe deeply. The average duration of a yawn is about 6 seconds.
The purpose and cause of yawning are still a mystery. Scientists are not sure what causes a yawn. People yawn when they are tired or bored, but they also yawn when they aren’t. There are many ideas explaining why we yawn.
One idea is that yawning is a way for the body to become more alert by taking in more oxygen. A yawn increases the heart rate, forces carbon dioxide out of the lungs and blood stream, and brings oxygen to the brain. But one study showed that volunteers given a lot of oxygen did not yawn any less than before, while those given a lot of carbon dioxide did not yawn more.
Another idea is that early humans used yawning as a form of communication. If one decided it was time to sleep, they would tell the others by yawning and they would do it in return to show they agreed.
A third explanation comes from psychology professor Gordon Gallup of University at Albany in New York. He said that as people yawn, they cool off their brains. “Brains are like computers.” he said. “They only operate efficiently and effectively when they’re cool. Many things connected to yawning, like being tired, make the brain hot, and yawning can reduce the heat.”
Scientists have sent people into space, and created terrible nuclear weapons, but there are lots of seemingly simple things, such as why we yawn, or hiccup（打嗝）, that they can’t figure out. Next time you are in class in the morning, let out a big yawn and watch to see how many of your classmates yawn in response!What’s the purpose of the description of how bad you may feel when you’re woken up in the morning?
| A．To explain why humans yawn. |
| B．To explain how humans start yawning. |
| C．To lead into the topic of yawning. |
| D．To complain about being woken up by the clock. |
Which is not among the possible reasons for yawning mentioned in the passage?
| A．A way to show that you feel hot. |
| B．A way to get rid of carbon dioxide. |
| C．A way to cool off your brain. |
| D．A way to communicate. |
In which situation are you likely to yawn?
| A．When you feel frustrated. |
| B．The weather is hot. |
| C．Someone else yawns near you. |
| D．When you breathe in a lot of carbon dioxide. |
What can we learn from the passage?
| A．The real reason why humans and most animals yawn. |
| B．Hiccups are an involuntary human action similar to yawns. |
| C．The more an action can be studied, the easier it is to research. |
| D．Finding out why humans yawn should be easier than sending people into space. |
How to Beat On-line Credit-card Thieves
The Internet has led to a huge increase in credit-card fraud. Your card information could even be for sale in an illegal web site.
Web sites offering cheap services should be regarded with care. On-line shoppers who enter their credit-card information may never receive the goods they thought they bought.
The thieves then go shopping with your card number--- or sell the information over internet.
Computers hackers（黑客） have broken down security（安全） systems raising questions about the safety of cardholder information. Several months ago, 25,000 customers of CD Universe, and on-line music retailer（批发商）, were not lucky. Their name, addresses and credit-card numbers were posted on a web site after the retailer refused to pay US $157,828 to get back the information.
Credit-card firms are now fighting against on-line fraud. Master-card is working on plans for Web-only credit card, with a lower credit limit. The card could be used only for shopping on-line. However, there are a few simple steps you can take to keep from being cheated.
Ask about your credit-firm’s on-line rules. Under British law, cardholders are responsible for the first US $78 of any fraudulent spending.
And shop only at secure sites: Send your credit-card information only if the web site offers advanced secure system. If the security is in place, a letter will appear in the bottom right-hand corner of your screen. The web site address may also start the extra “s” stands for secure.
If you still have any doubt, give your credit-card information over the telephone.
Keep your password safe: Most on-line sites require a user name and password before placing an order. Treat your password with care. What do most people worry about the Internet according to this passage?
| A．fraud on the Internet | B．computer hackers |
| C．illegal web site | D．shopping on line |
How many pieces of advice does the passage give to you?
| A．1 | B．2 | C．3 | D．4 |
You are shopping on the web and you want to buy a TV set, what does this article suggest doing?
| A．You can go to the website and buy it without doubt. |
| B．Send your credit card information as soon as the web asks you to do so. |
| C．Give your credit card information over telephone if you have doubt. |
| D．Don’t pay money until your TV set is sent to you. |
Which of the following is TRUE according to the passage?
| A．Computer hackers sold the retailer’s information to a web site to get money. |
| B．A reliable website offers you an advanced secure system. |
| C．You can depend on the password to protect your information. |
| D．The on-line credit-card thieves stole your credit-card and paid with it. |
Casablanca, Sep. 24
A flood swept across the coastal plain about 100 miles southwest of here, killing hundreds of Moroccans in a market place yesterday morning.
Reports from the area said 218 bodies had been counted, and many of the people were missing.
The flood followed heavy rains, which filled the coastal plain and dry river beds and caused them to overflow. The flood, several feet high, hit the village of Khemis Nagua at midmorning yesterday as farmers from the surrounding area joined town people in an open market place. The roaring waters swept the villager’s living places, the market sheds （棚子），shoppers，cattle and farm tools for miles across the plain.
The flood was over almost as soon as it started, the reports said, as the water swept out to sea. Rescue workers quickly moved into the area from Safi, about 25 miles further south.You can learn from the text that ________.
| A．hundreds of people died in the flood |
| B．the flood lasted for several days |
| C．heavy rains followed the flood |
| D．the flood hit the village at midnight |
The report mainly tells the public about__________.
A. how the flood swept the coastal plain
B. the flood in fall
C why the terrible flood took place
D. a rescue attemptAccording to the text, which of the following maps may be correct?
（ KN="Khemis" Nagua, C=Casablanca S= Safi）
Our surroundings are being polluted faster than nature and man’s present efforts cannot prevent it. Time is bringing us more people, and more people will bring us more industry, more cars, larger cities, and the growing use of man-made materials.
What can explain and solve this problem? The fact is that pollution is caused by man—by his desire for a modern way of life. We make “increasing industrialization” our chief aim. So we are often ready to offer everything: clean air, pure water, good food, our health and the future of our children. There is a constant flow of people from the countryside into the cities, eager for the benefits of our modern society. But as our technological achievements have grown in the last twenty years, pollution has become a serious problem.
Isn’t it time we stopped to ask ourselves where we are going—and why? It makes one think of the story about the airline pilot who told his passengers over the loudspeaker, “I’ve some good news and some bad news. The good news is that we’re making rapid progress at 530 miles per hour. The bad news is that we’re lost and don’t know where we’re going.” The sad fact is that this becomes a true story when spoken of our modern society.Man cannot prevent the world from being polluted mainly because______.
| A．the population of the world is decreasing fast |
| B．people use too many man-made materials |
| C．we have more and more industry |
| D．we are producing more cars, trucks and buses |
According to the passage, what does man value most?
| A．Industry. | B．Health. |
| C．Clean air. | D．The future of the children. |
The story about the airline pilot tells us that ______.
| A．man knows where the society is going |
| B．people do not welcome the rapid development of modern society |
| C．man can do little about the problem of pollution |
| D．the writer is worried about the future of our society |
People crowd into the cities because ______.
| A．they want very much to find well-paid jobs |
| B．they are anxious to enjoy the achievements of our society |
| C．they have become tired of their homeland |
| D．they have a strong wish to become industrial workers |
Moral science is taught as a subject in most schools but with little effect. Perhaps part of the problem lies in the fact that morality is not a science, strictly speaking. It is too much of a social phenomenon, and also has too much of the personal and subjective things mixed within. Besides, morality itself changes with generations. So it is impossible to be defined in a textbook.
I remember sitting through forty minutes of moral lessons, which told stories about little children who never told lies and were rewarded for their goodness. It had little effect and left no impression on me, though.
If moral science has to be taught as a subject in schools, it needs a participatory(参与其中的) approach. When you tell a child about morals, you also have to deal with social norms（规范）and cultural differences. You have to explain that morality can be subjective, and be able to co-exist in society. You will probably have to refer to the morals of the present time.
The best way to tell a child how to live is to show him what is valued. If a child likes his friend, you have to make the child think about why. Once the child notices and recognizes goodness in others, he or she is likely to develop it as well.
In fact, children learn most of their morals by watching people around them. They absorb behavior patterns from teachers and older students. They watch to see what is rewarded and who is punished. They learn on the sports field and through social work. Moral science lessons should simply consist of letting them live and interact, and watch you support correct values and reward good behavior. Which is NOT the reason that moral science is taught in schools but with little effect?
| A．Morality doesn’t strictly belong to a science |
| B．Morality is more like a social phenomenon. |
| C．Different generations have different moral ideas. |
| D．Morality can’t be written down in textbooks. |
The author describes his own experience of having moral lessons in order to _____.
| A．explain telling lies is not moral for little children. |
| B．advise people should be rewarded for their goodness. |
| C．prove moral lessons in schools have little effect. |
| D．show he has no opinions about moral science. |
When you tell a child about morals, you should________.
| A．teach him to share personal moral ideas with others |
| B．tell him about social norms and cultural differences |
| C．explain that nobody can influence his moral ideas. |
| D．say that the present morals are likely to be changed. |
What is the last paragraph mainly about?
| A．The best way of teaching children about morals. |
| B．The value of teachers’ setting a good example |
| C．The influence of people’s behavior on morals. |
| D．The importance of rewarding good behavior. |
School Groups:$10.00 per person
One free teacher admission per 10 students.
Group rates apply to groups 15 or more.
Click HERE to make a reservation online today!
The Miami Planetarium(天文馆) opened its doors to the public on November 4, 1966 and has entertained and educated children of all ages about astronomy and the wonders of the night sky ever since. The planetarium houses a 65-foot diameter doomed projection screen with 231 seats.
At the heart of the Planetarium is a SPITZ “Space Transit Planetarium” star projector(放映机), which is capable of accurately reproducing the stars and planets as seen from anywhere on Earth at any time during the year. Shows daily except Thanksgiving and Christmas Day. Unlike any other in South Florida, the Planetarium is a unique setting for bringing the stars and planets indoors in animated live star shows and music filled laser light shows.
The Weintraub Observatory（天文台） houses two powerful telescopes. Observatory hours are from 8:00p.m. to 10:00p.m. Look through the telescope to view the planets, the four moons of Jupiter, the rings of Saturn and deep sky objects such as galaxies, nebulas and double stars.
Deposit: A $ 75 deposit must be received 10 days ahead of the visit date to guarantee your visit.
Cancellation Policy：The museum requires 48 hours advance notice prior to any cancellation or other changes to a reservation. Without prior notification the original total will be expected upon arrival.
Payment Policy: The balance of the admission fee is due upon arrival at the museum on your visit day.
Upon arrival: The leading teacher should check in at the box office with payment for the correct head count of students and teachers. Visitors should remain on the bus until a museum interpreter show you around the museum.
Museum Etiquette: We ask that all groups remain together and orderly. Teachers are asked to help maintain order with their groups. We reserve the right to refuse service to any group or individual not obeying the museum policies.
Bus procedures: The museum will provide parking for buses in our parking lot. Upon arrival, bus drivers will be directed by the museum staff to the appropriate places to park. It is recommended that buses remain on the spots throughout the group’s entire museum visit.
For more information & reservations call: (305)646-4222. In the Miami Planetarium, visitors can _________.
| A．look through the telescope to view the Mars at 11 p.m. |
| B．enjoy the roller coaster on the weekend. |
| C．watch animated live star shows on December 1 |
| D．watch animated live star shows on December 25 |
If twenty students are to visit the Miami Planetarium together with five teachers, how much will they have to pay for the admission fees in total?
| A．$280 | B．$250 | C．$150 | D．$200 |
To make sure that you can visit the Miami Planetarium on time, you must_____
| A．pay the total admission fees in advance. |
| B．pay some of the admission fees in advance. |
| C．rent the bus owned by the planetarium |
| D．book the visit five days before the visit date |
We can infer from the passage that _________.
| A．the Miami Planetarium has a history of over 60 years |
| B．the Miami Planetarium is very popular among moviegoers |
| C．the Miami planetarium is located in North Florida. |
| D．the Weintraub Observatory is not open to visitors during the day. |