B
It is natural that children are curious about the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.
　　As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their mothers. They become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things that people have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career (生涯、职业) in science.
　　Scientists spend their lives trying to find out about the world．Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e. g. physics, chemistry .
　　These scientists have already discovered a lot about our world．For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump (泵) that pumps blood to all parts of the body. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too . So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.
　　Of course, scientists cannot answer all of our questions. If we ask, “Why does the ocean water taste salty” scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask , “What happens to the salt in the ocean? The ocean does not get saltier every year.” Scientists are not sure about the answer to this question.
　　We know a lot about our world, but there are still many answers that we do not have, and we are curious.
45．According to the passage, which of the following statements is true?
　  A．People are curious in the same way.
　  B．People in different countries are interested in different things.
　  C．Men and women are curious about different things.
　  D．People of different ages are interested in different things
46．Scientists who work with the biological sciences study____.
A．the earth , the oceans and the sky          B．man-made things
C．plants and animals                               D．ocean water
47．When you run, your muscles need ____.
A．more nutrition and oxygen    B．more signals    C．more salt   D．water
48．A rock cracks _____.
A．in wet regions                                     B．in dry regions
C．at very high or very low temperatures               D．when salty water falls in

此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右边的横线上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正：

该行多一个词：把多余的词用斜线(划掉，并在该行右边横线上写出该词，并也用斜线(划掉。

该行缺一个词：在缺词处加一个漏词符号(∧)，并在该行右边横线上写出该加的词。

该行错一个词：在错的词下划一横线，并在该行右边横线上写出改正后的词。

注意：原行没有错的不要改。

      　Isabella is one of my best friends. She had taught                66.　　　　

us English when I attended training course two                             67.　　　　

years before. Isabella always made good preparations                       68.　　　　

for the lessons, she tried her best to make her                                   69.　　　　

classes lively. I used to being poor in English，                           70.　　　　

especially in written English. But now, I'm able                            71.　　　　

to write English letters and reports correct.                                72.　　　　

I still remember how she helped me for my English                        73.　　　　

patiently. Teachers’ Day is approached. I'm going to                       74.　　　　

send to her a card and give her my best wishes.                            75.　　　　

    Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu may make a difference in how long the misery lasts.
The American Lung Association (ALA) has issued new guidelines on combating colds and the flu(流感), and one of the keys is being able to quickly tell the two apart. That’s because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come.
The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses - flu A, B and C. There is no cure for either illness , but the flu can be prevented by the flu vaccine, which is, for most people, the best way to fight the flu, according to the ALA. But if the flu does strike, quick action can help. Although the flu and common cold have many similarities , there are some obvious signs to look for.
Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms.
The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms.
Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome(综合症) ，a rare but serious condition of the liver and central nervous system.
There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one.
　
【小题1】 According to the author, knowing the cause of the misery will help ________.

第二节：完型填空(共20小题，每小题1.5分，满分30分)
Recently I was invited to a friend’s house for supper—and had a meal I have never had before.
All the friends invited were a little 　36　. It’s not that Ben is unsociable, or a bad cook, but it’s just that he never　37　more than he has to. So how come he was inviting us round for a meal? Had he bought something　38　 for his friends? He greeted us at the door and showed us into his dining room where a　39　table was waiting for us. “Nothing but the　40　 for my friends! ” said Ben. We all sat down and looked　41　at each other—what was he 　42　?
Ben returned with four bowls of hot soup. “It’s a　43　of carrots, potatoes and tomatoes, ”said Ben. The next　44　was also a little strange　45　we didn’t quite know what it was again. “It’s just another mixture of vegetables. ”
As we ate we chatted and finally the　46　turned back to what we were eating. “Was there a recipe(菜谱) for this, ”asked Marina, “or did you　47　it up? ”Ben put his fork down. “What I cooked　48　what I could find. ”Marina was surprised. “But you can find anything in supermarkets these days. ”“But there’s　49　choice in what you can find　50　supermarkets, ” he replied.
　51　that we had all finished the food, Ben decided to tell the truth. He had read recently that supermarkets usually　52　away 5 percent of their food every day. So Ben decided to look inside his local supermarket bins. There he found food that was slightly out of　53　, boxes of thrown-away vegetables and fruit.
So Ben had　54　 provided a decent meal for his friends, and made us aware of the fact that there are many poor people who need the food, but the amount of food thrown away is enough to 　55　millions of people.
36.A. excited      B. disappointed  C. surprised   D. delighted
37.A. takes        B. spends       C. uses       D. does
38.A. cheap        B. special       C. practical    D. usual
39.A. new         B. separate      C. booked     D. laid
40.A. freshest      B. most         C. best        D. least
41.A. nervously     B. carefully      C. sadly      D. happily
42.A. in for         B. up to         C. away from   D. out of
43.A. mixture       B. liquid         C. matter      D. dish
44.A. course      B. food            C. soup       D. salad
45.A. in that      B. on condition that  C. in case that   D. so that
46.A. dinner      B. idea            C. food        D. subject
47.A. pick        B. look            C. make       D. take
48.A. referred     B. depended on     C. lay in       D. resulted from
49.A. less         B. more           C. some       D. any
50.A. within       B. beyond         C. inside      D. outside
51.A. Feeling      B. Seeing          C. Realizing   D. Thinking
52.A. store        B. move           C. throw      D. hide
53.A. order        B. place           C. season     D. date
54.A. successfully   B. possibly        C. hardly     D. hopefully
55.A. enrich        B. please          C. affect     D. Feed