We all know something about Thomas Edison. He was a great American   21  .He was in school for only a short time.  22 , he had to leave the school and   23  himself at home and learned a lot. When Edison grew up, he had his own lab. He worked hard and hardly   24  to have a rest.
One day a friend of his brought a young man into his lab. He   25  the young man to Edison. He said the young man had studied in a famous university in Germany and had a lot of   26  of physics and maths. Edison was glad to work with a man like him and   27  him as a helper. A few weeks later, the young   28  about Edison’s past. He began to look down on him. Edison   29  about it, but he said   30  .
Once the young man came into the lab while Edison   31  an important experiment. He stood near the table   32  he didn’t help him. Edison stopped   33  out a bottle and said, “Go to calculate (计算)its volume(容积)and tell me the   34  in two hours.”
At first the young man thought it easy to do it. Soon he   35  it difficult. Two hours later Edison went into his office and saw a lot of paper and books on his desk. Of course he couldn’t compute the volume in the time   36  .
“Why not pour some   37  into the bottle?” said Edison. “Then you’ll   38  calculate its volume!” Having heard this, the young man’s   39  turned red, and he knew Edison was really   40 than him!

A traveller was staying in an Egyptian village. One day, she held up her camera to take pictures of the children. Suddenly the young ones began to shout at her. The traveller's face turned red and she apologized to the head for what she was doing, and told him she had forgotten that people in some places believed a person would lose his soul(灵魂) if his picture was taken. She explained to him the operation of a camera for a long time. Several times the head tried to say something, but he couldn't. When she believed that the head didn't fear any longer, the traveller then let him speak. With a smile, he said, "The children were trying to tell you that you forgot to take off the lens(镜头) cap!"
【小题1】The children shouted when the traveller was taking pictures of them because _______.

Paragraph 1
Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vegetables of all kinds. (2) citrus(柑桔) fruits and tomatoes; (3) potatoes and other fruits and vegetables; (4) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal(谷类), rice is also in this kind of food; (7) butter, or something like butter.
Paragraph 2
People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw(生的) or cooked, canned or frozen. It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night. The important thing is what you eat every day.
Paragraph 3
There are two problems, then, in feeding the large number of people on earth. The first is to find some ways to feed the world’s population so that no one is hungry.
The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy.
【小题1】According to the scientists, which of the following groups of food is the healthiest for your lunch?

There is one word that is on the lips of Americans, day and night: “Sorry.”
One time as I was walking on the street, a young man ran by hurriedly, brushing against my handbag. Even as he continued on his way, he turned back and said “sorry” to me. Even in a rush, he didn’t forget to apologize. One day, after I bought a mango, the salesman was giving me the change, but I wasn’t ready for it and a coin dropped to the ground. “I’m sorry,” he said while bending down to pick it up. I was puzzled—why would he apologize when it is my fault?
Another time, I stepped on a man’s foot in an escalator, at the same time, we both said “sorry”. I thought it interesting, was it really necessary for him to apologize? Later on, an American friend explained to me that according to the American mentality, the escalators a public place, and everyone should be able to stand in it. After someone occupies a position in the elevator, making it difficult for someone else to find a place to stand, isn’t it necessary to express an apology?
If you go to the movies and the tickets happen to be sold out, the ticket seller will say: “Sorry, the tickets are sold out.” Whenever one of your hopes goes unfulfilled, an American will say “sorry” as a sign of sympathy.
During my stay in America, I often came across situations in which I was supposed to say “sorry”. Gradually, I realized that when friction（摩擦）appears in daily life, Americans don’t care much about who is wrong; If someone is troubled, a “sorry” is always necessary. When this happens, even if the other person is hurt, the “sorry” cools tempers and human kindness is shown. Perhaps this is why I never saw anyone quarreling on the buses, subways or streets of America.
【小题1】How many examples are given to show that Americans like to say “sorry”?

A new study by a Penn State College of Medicine research team found that honey is a better and safer treatment for children than cough medicines.   
Ian Paul, the study’s lead researcher, was motivated to test honey because treating coughs in children has recently become a sticky subject. Coughing is the body’s way of clearing irritated (受刺激的) airways to help you breathe. But too much coughing can irritate your lungs and throat even more. It can also make it tough to get the sleep your body needs to heal. Hoping to ease the suffering of their children, parents often give them cough medicines.  
But there have never been any good studies showing that they work. Cough and cold medicines may also cause serious side effects. Hundreds of kids die in the hospital each year after receiving too much cough medicine by mistake. Last October, the US Food and Drug Administration suggested that parents should not give cough medicines to children under 6.
In order to search for a different solution, Paul designed a study that involved 105 kids who were sick with coughs and other cold conditions. At bedtime, the kids took buckwheat (荞麦) honey, honey-flavored (蜂蜜味的) DM (one of the most common ingredients in cough medicines), or no treatment. Parents and kids in the no-
-treatment group knew they weren’t getting anything, but the other two groups weren’t told which treatment they were getting.
The surveys showed that kids who swallowed about 2 teaspoons of buckwheat honey before bedtime coughed less and slept better than kids in the other groups. “When parents want something for their kids to take,” Paul says, “honey seems like the best option”.
But what gives honey its healing power? Substances called antioxidants (抗氧化剂) may be part of the answer. All honey contains antioxidants that protect our cells from damage. Studies show that antioxidant levels in the body rise after someone swallows honey.
68. Which of the following can be the best title for this passage?
A. No cough medicines to children    
B. Sweet solution to kids’ coughing
C. Best treatment for your cold   
D. Cough medicines don’t work  
69. We can learn from Paragraph 2 that coughing ______.
A. sometimes does good to people 
B. can cure lung and throat diseases
C. is more harmful to children  
D. helps improve children’s diet   
70. During Paul’s experiment, the kids who received treatment ______.
A. seemed much worse than before 
B. knew they weren’t getting anything 
C. coughed less and slept better
D. had no idea what they swallowed