The baby is just one day old and has not yet left hospital. She is quiet but alert (警觉). Twenty centimeters from her face researchers have placed a white card with two black spots on it. She stares at it carefully. A researcher removes the card and replaces it by another, this time with the spots differently spaced. As the cards change from one to the other, her gaze(凝视) starts to lose its focus—until a third, with three black spots, is presented. Her gaze returns: she looks at it for twice as long as she did at the previous card. Can she tell that the number two is different from three, just 24 hours after coming into the world?
Or do newborns simply prefer more to fewer? The same experiment, but with three spots shown before two, shows the same return of interest when the number of spots changes. Perhaps it is just the newness? When slightly older babies were shown cards with pictures of objects (a comb, a key, an orange and so on), changing the number of objects had an effect separate from changing the objects themselves. Could it be the pattern that two things make, as opposed to three? Not again. Babies paid more attention to squares moving randomly on a screen when their number changed from two to three, or three to two. The effect even crosses between senses. Babies who were repeatedly shown two spots became more excited when they then heard three drumbeats than when they heard just two; likewise(同样地) when the researchers started with drumbeats and moved to spots.The experiment described in Paragraph 1 is related to the baby's________.
| A．sense of hearing | B．sense of sight |
| C．sense of touch | D．sense of smell |
Babies are sensitive to the change in ________.
| A．the size of cards |
| B．the colour of pictures |
| C．the shape of patterns |
| D．the number of objects |
Why did the researchers test the babies with drumbeats?
| A．To reduce the difficulty of the experiment. |
| B．To see how babies recognize sounds. |
| C．To carry their experiment further. |
| D．To keep the babies' interest. |
Where does this text probably come from?
| A．Science fiction. | B．Children's literature. |
| C．An advertisement. | D．A science report. |
Bicycle Safety
Operation Always ride your bike in a safe, controlled manner on campus(校园). Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.
Theft Prevention
Always securely lock your bicycle to a bicycle rack---even if you are only away for a minute. Register your bike with the University Department of Public Safety. It’s fast, easy, and free. Registration permanently records your serial number, which is useful in the possible recovery of the bike stolen.
Equipment
Brakes
Make sure that they are in good working order and adjusted properly.
Helmet
A necessity, make sure your helmet meets current safety standards and fit properly.
Lights
Always have a front headlight---visible at least 500 feet in front of the bike. A taillight is a good idea.
Rules of the Road
Riding on Campus
As a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15mph, unless otherwise posted. Always give the right of ways to walkers. If you are involved in an accident, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.
Bicycle Parking
Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycle parking, and parking in such posts can result in a fine.
If Things Go Wrong
If you break the rules, you will be fined. Besides violating rules while riding bicycles on campus, you could be fined for:
No bicycle registration---------------------------------------------------$25
Bicycle parking banned--------------------------------------------------$30
Blocking path with bicycle ---------------------------------------------$40
Violation of bicycle equipment requirement -------------------------$35Registration of your bicycle may help you _____________.
| A．find your stolen bicycle | B．get your serial number |
| C．receive free repair services | D．settle conflicts with walkers |
When you ride a bicycle on the campus, ___________.
| A．ride on posted bicycle paths and sidewalks |
| B．cycle at a speed of over 15 mph |
| C．put the walkers’ right of way first |
| D．call the police before leaving in a case of accident |
If you lock your bicycle to a tree on the campus, you could be fined _ ________.
| A．$25 | B．$30 | C．$35 | D．$40 |
What is the passage mainly about?
| A．A guide for safe bicycling on campus. |
| B．Directions for bicycle tour on campus. |
| C．Regulations of bicycle race on campus. |
| D．Rules for riding motor vehicles on campus. |
As any homemaker who has tried to keep order at the dinner table knows，there is far more to a family meal than food. Sociologist(社会心理学家)Michael Lewis has been studying 50 families to find out just how much more.
Lewis and his co－workers carried out their study by videotaping(录像) the families while they ate ordinary meals in their own homes. They found that parents with small families talk actively with each other and their children. But as the number of children gets larger，conversation gives way to the parents’ efforts to control(控制)the loud noise they make. That can have an important effect on the children. “In general the more question－asking the parents do，the higher the children’s IQ scores.”
Lewis says，“And the more children there are，the less question－asking there is.”
The study also provides an explanation for why middle children often seem to have a harder time in life than their siblings(兄弟姐妹)．Lewis found that in families with three or four children，dinner conversation is likely to center on the oldest child，who has the most to talk about，and the youngest，who needs the most attention. “Middle children are invisible(看不见的)，”says Lewis.“ When you see someone get up from the table and walk around during dinner，chances are it’s the middle child.” There is，however，one thing that stops all conversations and prevents anyone from having attention：“When the TV is on，” Lewis says，“ dinner is a non－event.”The writer’s purpose in writing the text is to ________.
| A．show the relationship between parents and children |
| B．teach parents ways to keep order at the dinner table |
| C．report on the findings of a study |
| D．give information about family problems |
Parents with large families ask fewer questions at dinner because ________.
| A．they are busy serving food to their children |
| B．they are busy keeping order at the dinner table |
| C．they have to pay more attention to younger children |
| D．they are tired out having prepared food for the whole family |
By saying “Middle children are invisible” in Paragraph 3，Lewis means that middle children ________.
| A．have to help their parents to serve dinner |
| B．get the least attention from the family |
| C．are often kept away from the dinner table |
| D．find it hard to keep up with other children |
Which of the following statements would the writer agree to?
| A．It is important to have the right food for children. |
| B．It is a good idea to have the TV on during dinner. |
| C．Parents should talk to each of their children often. |
| D．Elder children should help the younger ones at dinner. |
Travelling can be a way to gain life experiences，especially during Spring Break—a week long school vacation in the United States. But what if you’re a student and don’t have enough money for a trip? Don’t worry. Here are some useful suggestions.
Save：This probably is the most important preparation for travelling. Cut expenses to fatten_your_wallet so you will have more choices about where to go and how to get there.
Plan ahead：Don’t wait until the last minute to plan your trip. Tickets may cost more when bought on short notice. Giving yourself several months to get ready can mean security and savings.
Do your homework：No matter where you go，research the places you will visit. Decide what to see. Travel books will provide information on the cheapest hotels and restaurants.
Plan sensibly：Write down what you expect to spend for food and hotels. Stick to your plan or you may not have enough money to cover everything.
Travel in groups：Find someone who is interested in visiting the same place. By travelling with others you can share costs and experiences.
Work as you go：Need more money to support your trip? Look for work in the places you visit.
Go off the beaten path：Tourist cities may be expensive. You may want to rethink your trip and go to a lesser－known area. Smaller towns can have many interesting activities and sights.
Pack necessary things：The most important things to take are not always clothes. Remember medicine in case you get sick and snacks in case you cannot find a cheap restaurant.
Use the Internet：The Net can help to save money. Some useful websites include www.Travelocity.com，www. bargains－lowestfare.com and www.economictravel.com.
By planning sensibly，even students can enjoy the travel. Your travel experiences will be remembered for a lifetime.This passage is about ________.
| A．how to get life experiences |
| B．how to travel with enough money |
| C．how to make your travel interesting |
| D．how to plan your travel |
The underlined words “fatten your wallet” probably means ________.
| A．make your wallet larger | B．put some fat in your wallet |
| C．save some money | D．put some choices in your wallet |
During your trip，________.
| A．you need more shoes than clothes |
| B．you can gain valuable life experiences |
| C．you shouldn’t look for work all the way |
| D．you should forget to do your homework |
Suppose you were a student without enough money. If you’d like to travel，you’d better do the following things EXCEPT ________.
| A．doing your homework before traveling |
| B．traveling with others |
| C．going to a place that is not so famous |
| D．taking some medicine and food in case |
The purpose of this passage is________.
| A．to encourage the students to have a trip |
| B．to give some advice on travelling |
| C．to introduce some websites about travelling |
| D．to teach the students how to save money during their trip |
Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail(桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.Hundreds of years ago, Sir Francis Bacon found _______.
| A．the temperature of warm water drops faster than that of cold water |
| B．warm water is heavier than cold water |
| C．warm water has the same temperature as cold water |
| D．warm water is not as useful as cold water |
What Sir Francis Bacon said was right, but people didn't believe him until _______.
| A．late in the 19th century | B．early in the 20th century |
| C．three years ago | D．late in the 20th century |
Leave a pail with warm water and another pail with cold water in the same low temperature, you’ll find that _______.
| A．cold water freezes first |
| B．warm water turns into ice before cold water |
| C．warm water and cold water freeze at the same time |
| D．much of cold water is changed into air. |
Why does warm water freeze first in the same freezing weather?
| A．Because some of the warm water turns to vapor, the amount(数量) becomes less than that of cold water. |
| B．Because warm water is lighter than cold water. |
| C．Because the temperature of warm water is lower than that of cold water. |
| D．Because cold water freezes with more difficulty than warm water. |
Thanksgiving Day is special holiday in the United States and Canada. Families and friends gather to eat and give thanks for their blessing.
Thanksgiving Day is really a harvest festival. This is why it is celebrated in late fall, after the crops are in. But one of the first thanksgivings in America had nothing to do with a good harvest. On December 4, 1619, the Pilgrims from England landed near what is now Charles City, Virginia. They knelt down and thanked God for their safe journey across the Atlantic.
The first New England Thanksgiving did celebrate a rich harvest. The Pilgrims landed at what is now Plymouth, Massachusetts, in 1620. They had a difficult time and the first winter was cruel. Many of the Pilgrims died. But the next year, they had a good harvest. So Governor Bradford declared a three-day feast（盛宴）. The Pilgrims invited Indian friends to join them for their special feast. Everyone brought food.
In time, other colonies（殖民地）began to celebrate a day of thanksgiving. But it took years before there was a national Thanksgiving Day. During the Civil War, Sarah Josepha Hale persuaded Abraham Lincoln to do something about it. He proclaimed（宣布）the last Thursday of November 1863 as a day of thanksgiving. Today, Americans celebrate this happy harvest festival on the fourth Thursday in November. Canadians celebrate Thanksgiving Day in much the same way as their American neighbors. But the Canadian thanks-giving Day falls on the second Monday in October.Thanksgiving Day is celebrated .
| A．in spring | B．summer | C．in autumn | D．in winter |
The first to celebrate thanksgiving were .
| A．some people from England | B．the American Indians |
| C．Sarah Josepha Hale | D．Governor Bradford |
The passage mainly tells us .
A. how Thanksgiving Day is celebrated in the U. S. A.
B. how Thanksgiving Day came into being and the different ways it is celebrated
C. that Thanksgiving Day is in fact a harvest holiday
D. how the way to celebrate Thanksgiving Day changed with the time and places