Global warming happens when greenhouse gases trap heat and light from the sun in the earths atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows，but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out. As a result，the temperature rises.
Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on. Without it，the earth would be freezing，or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it，so people，plants，and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the each can get unusually warmer, and many plants，animals．and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat,and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually,people，plants，and animals would all die of hunger．
People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now,more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming,kids call do just as much. By the example given in Paragraph l, the author wants to__________.
| A．explain how global warming happens. |
| B．show his feeling in a car in hot summer. |
| C．tell us cars are causes of greenhouse gases. |
| D．say that I there are greenhouse gases in every car. |
The underlined wordit in Paragraph 2 refers to__________.
| A．light | B．greenhouse effect |
| C．temperature | D．heat |
What is the effect of atmosphere?
| A．It only traps the heat of the sun. |
| B．It does great harm to humans. |
| C．It makes the earth neither too hot nor too cold. |
| D．It prevents all the light from the sun shining on the earth. |
What is the main idea of the third paragraph?
| A．lf there is greenhouse effect,all the plants will die |
| B．Human beings are likely to disappear from the earth |
| C．Crops can ′t take in the heat lf there is greenhouse effect |
| D．Although greenhouse effect is necessary,too much of it will cause us to die. |
What will the author most probably discuss in the paragraph that follows?
| A．What kids can do to help stop global warming. |
| B．Who should be responsible for the environmental problems. |
| C．What global warming is doing to the environment. |
| D．Why cars and buses pollute the air a lot. |
One day an ant was drinking at a small stream and fell in. She made desperate(adj.拼死的) efforts to reach the side, but made no progress at all. The poor ant almost exhausted(adj.精疲力竭的) was still bravely doing her best when a dove saw her. Moved with pity, the bird threw her a blade of grass, which supported her like a raft, and thus the ant reached the bank again. While she was resting and drying herself in the grass, she heard a man come near. He was walking along barefooted with a gun in his hand. As soon as he saw the dove, he wished to kill it. He would certainly have done so, but the ant bit him in the foot just as he raised his gun to fire. He stopped to see what had bit him, and the dove immediately flew away. It was an animal much weaker and smaller than herself that had saved her life.The ant could not reach the side though _______.
| A．she cried for help | B．she asked the dove to save her |
| C．she tried very hard | D．she could smell well |
The dove saved the ant because _______.
| A．she was the ant's friend |
| B．she took pity on the poor ant |
| C．the ant was almost exhausted |
| D．the ant had been struggled in the water for a long time |
The ant succeeded in getting on the bank with the help of _______.
| A．a leaf | B．a piece of wood |
| C．a blade of grass | D．a raft |
Just as the man shot at the dove, _______.
| A．the dove immediately flew away |
| B．the dove hid himself in the grass |
| C．the ant told the dove to leave at once |
| D．he felt something biting him in the foot |
In writing the story, the writer wants to show _______.
| A．how clever the ant was |
| B．how kind the dove was |
| C．how the ant and the dove helped each other |
| D．we often need help from others, therefore we should help others as much as we can |
Once when I was facing a decision that involved high risk, I went to a friend. He looked at me for a moment, and then wrote a sentence containing the best advice I’ve ever had: Be bold and brave — and mighty (强大的) forces will come to your aid.
Those words made me see clearly that when I had fallen short in the past, it was seldom because I had tried and failed. It was usually because I had let fear of failure stop me from trying at all. On the other hand, whenever I had plunged into deep water, forced by courage or circumstance, I had always been able to swim until I got my feet on the ground again.
Boldness means a decision to bite off more than you can eat. And there is nothing mysterious about the mighty forces. They are potential powers we possess: energy, skill, sound judgment, creative ideas — even physical strength greater than most of us realize.
Admittedly, those mighty forces are spiritual ones. But they are more important than physical ones. A college classmate of mine, Tim, was an excellent football player, even though he weighed much less than the average player. “In one game I suddenly found myself confronting a huge player, who had nothing but me between him and our goal line,” said Tim. “I was so frightened that I closed my eyes and desperately threw myself at that guy like a bullet（子弹） — and stopped him cold.”
Boldness — a willingness to extend yourself to the extreme—is not one that can be acquired overnight. But it can be taught to children and developed in adults. Confidence builds up. Surely, there will be setbacks (挫折) and disappointments in life; boldness in itself is no guarantee of success. But the person who tries to do something and fails is a lot better off than the person who tries to do nothing and succeeds.
So, always try to live a little bit beyond your abilities—and you’ll find your abilities are greater than you ever dreamed.Why was the author sometimes unable to reach his goal in the past?
| A．He faced huge risks. |
| B．He lacked mighty forces. |
| C．Fear prevented him from trying. |
| D．Failure blocked his way to success. |
What is the implied meaning of the underlined part?
| A．Swallow more than you can digest. |
| B．Act slightly above your abilities. |
| C．Develop more mysterious powers. |
| D．Learn to make creative decisions. |
What was especially important for Tim’s successful defense in the football game?
| A．His physical strength. |
| B．His basic skill. |
| C．His real fear. |
| D．His spiritual force. |
What is the author’s purpose in writing this passage?
| A．To encourage people to be courageous. |
| B．To advise people to build up physical power. |
| C．To tell people the ways to guarantee success. |
| D．To recommend people to develop more abilities. |
Food serves as a form of communication in two fundamental ways. Sharing bread or other foods is a common human tradition that can promote unity and trust. Food can also have a specific meaning, and play a significant role in a family or culture's celebrations or traditions. The foods we eat—and when and how we eat them—are often unique to a particular culture or may even differ between rural (农村的) and urban areas within one country.
Sharing bread, whether during a special occasion (时刻) or at the family dinner table, is a common symbol of togetherness. Many cultures also celebrate birthdays and marriages with cakes that are cut and shared among the guests. Early forms of cake were simply a kind of bread, so this tradition hits its roots in the custom of sharing bread.
Food also plays an important role in many New Year celebrations. In the southern United States, pieces of corn bread represent blocks of gold for prosperity (兴旺) in the New Year. In Greece, people share a special cake called vasilopita. A coin is put into the cake, which signifies (预示) success in the New Year for the person who receives it.
Many cultures have ceremonies to celebrate the birth of a child, and food can play a significant role. In China, when a baby is one month old, families name and welcome their child in a celebration that includes giving red-colored eggs to guests. In many cultures, round foods such as grapes, bread, and moon cakes are eaten at welcome celebrations to represent family unity.
Nutrition is necessary for life, so it is not surprising that food is such an important part of different cultures around the world.According to the passage, sharing bread______.
| A．indicates a lack of food |
| B．can help to develop unity |
| C．is a custom unique to rural areas |
| D．has its roots in birthday celebrations |
What does the coin in vasilopita signify for its receiver in the New Year?
| A．Trust. | B．Success. |
| C．Health. | D．Togetherness. |
The author explains the role of food in celebrations by______.
| A．using examples | B．making comparisons |
| C．analyzing causes | D．describing processes |
What is the passage mainly about?
| A．The custom of sharing food. |
| B．The specific meaning of food. |
| C．The role of food in ceremonies. |
| D．The importance of food in culture. |
Dear Santa Claus,
My name is Amy. I am 17 years old. I have a problem at school. Can you help me, Santa? Kids laugh at me because of the way I walk and run and talk. I have cerebral palsy. I just want one day when no one laughs at me or makes fun of me.
Love, Amy
At radio station WJLT in Fort Wayne, Indiana, letters poured in for the Christmas Wish Content. When Amy’s letter arrived at the radio station, Manager Lee Tobin read it carefully. He thought it wound be good for the people in Fort Wayne to hear about this special girl and her unusual wish. Mr. Tobin called up the local newspaper.
The next day, a picture of Amy and her letter to Santa made the front page of the “News Sentinel”. The story spread quickly. All across the country, newspapers and radio and television stations reported the story of the girl in Fort Wayne, Indiana, who asked for such a simple, yet remarkable Christmas gift—just one day without teasing.
Suddenly the postman was a regular at the Hagadorn house. Envelopes of all sizes addressed to Amy arrived daily from children and adults all across the nation. They came filled with holiday greetings and words of encouragement. Some of the writers had disabilities; some had been teased as children. Each writer had a special message for Amy. Through the cards and letters from strangers, Amy saw a world full of people who truly cared about each other.
Many people thanked Amy for being brave enough to speak up. Others encouraged her to ignore teasing and to hold her head high.
Amy did get her wish of a special day without teasing at South Wayne High School. Teachers and students talked together about how bad teasing can make others feel.
That year, the Fort Wayne mayor officially declared December 21st as Amy Jo Hagadorn Day throughout the city. The mayor explained that by daring to make such a simple wish, Amy taught a universal lesson. “Everyone,” he said, “wants to and should be treated with respect, dignity and warmth.”Amy’s letter showed that______.
| A．she wanted to win Christmas Wish Contest |
| B．she is more independent than before |
| C．she is often ignored in and out of class |
| D．her schoolmates can’t understand her disability |
We may infer from Amy’s story that_____.
| A．the disabled hate those who laugh at them |
| B．the news media played a key role in helping Amy |
| C．Amy will still be made fun of by her classmates |
| D．there are few disabled people in Amy’s country |
The mayor officially declared Amy Jo Hagadorn Day _______.
| A．to tell how bad teasing can make others feel |
| B．to encourage people to hold their heads high |
| C．to explain how brave Amy was by making her wish |
| D．to call on the public to treat everyone properly |
At thirteen, I was diagnosed（诊所） with kind of attention disorder. It made school difficult for me. When everyone else in the class was focusing on tasks, I could not.
In my first literature class, Mrs.Smith asked us to read a story and then write on it, all within 45 minutes. I raised my hand right away and said,”Mrs.Smith, you see, the doctor said I have attention problems. I might not be able to do it.”
She glanced down at me through her glasses, “you are no different from your classmates, young man.”
I tried, but I didn’t finish the reading when the bell rang. I had to take it home.
In the quietness of my bedroom, the story suddenly all became clear to me. It was about a blind person, Louis Braille. He lived in a time when the blind couldn’t get much education. But Louis didn’t give up. Instead, he invented a reading system of raised dots（点）, which opened up a whole new world of knowledge to the blind.
Wasn’t I the “blind” in my class, being made to learn like the “sighted” students? My thoughts spilled out and my pen started to dance. I completed the task within 40 minutes. Indeed, I was no different from others; I just needed a quieter place. If Louis could find his way out of his problems, why should I ever give up?
I didn’t expect anything when I handled in my paper to Mrs.Smith, so it was quite a surprise when it came back to me the next day- with an ”A” on it. At the bottom of the paper were these words:”See what you can do when you keep trying?”The author didn’t finish the reading in class because.
| A．He was new to the class |
| B．He was tried of literature |
| C．He had an attention disorder |
| D．He wanted to take the task home |
What do we know about Louis Braille from the passage?
| A．He had good sight |
| B．He made a great invention. |
| C．He gave up reading |
| D．He learned a lot from school |
What was Mrs.Smith’s attitude to the author at the end of the story?
| A．Angry | B．Impatient |
| C．Sympathetic | D．Encouraging |
What is the main idea of the passage?
| A．The disabled should be treated with respect. |
| B．A teacher can open up a new world to students. |
| C．One can find his way out of difficulties with efforts. |
| D．Everyone needs a hand when faced with challenges. |