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

We tried so hard to make things better for our kids but we made them worse. For my naughty boys, I’d know better. I’d really like for them to know about hand-me-down clothes and home-made ice cream and leftover meatloaf. I really would.

My cherished boys, I hope you learn humility (谦逊) by surviving failure and that you learn to be honest even when no one is looking. I hope you get a black eye fighting for something you believe in. I hope you have to share a bedroom with your younger brother. And it is all right to draw a line down the middle of the room, but when he wants to crawl (爬) under the covers (被子) with you because he’s scared, I hope you’ll let him. And when you want to see a Disney movie and your kid brother wants to tag along, I hope you take him.

　　I hope you have to walk uphill with your friends and that you live in a town where you can do it safely. I hope you learn to dig in the dirt and read books, and when you learn to use computers, you also learn how to add and subtract (减) in your head.

May you skin your knee climbing a mountain, burn your hand on the stove and stick your tongue on a frozen flagpole (旗杆). I hope you get sick when someone blows smoke in your face. I don’t care if you try beer once, but I hope you won’t like it.

I sure hope you make time to sit on a porch with your grandpa or go fishing with your uncle.

I hope your father punishes you when you throw a baseball through a neighbor’s window, and that your mother hugs you and kisses you when you give her a plaster of pared mold (一个石膏模型) of your hand.

　 These things I wish for you—tough times and disappointment, hard work and happiness.

1.Who wrote the letter?

2.What does the author hope for the boys?

3.It can be inferred from the text that the boys _________________.

4. Why does the author write the letter?

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.

1.According to the passage, which of the following statements is true?

　 A．People of different ages are interested in different things

　 B．People in different countries are interested in different things.

　 C．Men and women are curious about different things.

　 D．People are curious in the same way.

2.Scientists who work with the biological sciences study____.

    A．the earth , the oceans and the sky   B．plants and animals

    C．man-made things              D．ocean water

3.When you run, your muscles need ____.

A．more nutrition and oxygen    B．more signals    C．more salt   D．water

4.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

5.People are always curious because ____.

A．they cannot explain many things     B．they know nothing about the world

C．they know little about the world                             D．they want to be scientists

Do you know what kind of things the young people are reading? More and more  36  and parents have noticed another kind of pollution, which comes from the printed papers  37  on streets.

　　These printed things 38  newspapers but have hardly anything to do with 39 . You can only find reading materials badly made up there---some are too strange for anyone to 40 ,  others are frightening stories of something  41  .However, many of the young readers are getting interested in such  42  reading, which  43  them what they should pay for their breakfast and brings them nightmares（噩梦）and immoral（邪恶）ideas in  44 .  Homework is left  45 ,  and daily games are lost.

　　These sellers shout on streets selling their papers well. The writers, publishers and printers,  46  they are, we never know,  are  47  their silent money.

The sheep-skinned wolf's story seems to have been forgotten once again .Why not 48  this kind of thing? Yes, both teachers and parents have asked each other for more strict control of the young readers.  49  ,the more you want to forbid it, the more they want to have a look at it.  50  you may even find  several children, driven by the curious natures,  51  one patched paper,  which has travelled from hand to hand.

　　It really does 52  to our society. It has already formed a sort of moral pollution. The  53  teachers and parents need more powerful support in their protection of the young generation. At the same time the young  54  need more interesting books to help them  55  those ugly papers.

A. teachers　　     B. writers　　  C. readers　　　   D. students

A. found　　　     B. sold　　　　C. printed　　　   D. put

A. depend on　     B. work out　　 C. look like　　   D. act as

A. it　　           B. them       C. children　　    D. young people

A. understand　     B. think　　　  C. believe　　    D. know

A. more important    B. still worse　 C. even better     D. very good

A. poisonous　　    B. wonderful　　C. interesting　   D. useful

A. takes　　　　    B. spends　　　 C. pays          D. costs

A. use　　　　      B. sight　　　　C. common　　   D. return

A. undone　　　     B. unknown　　C. much　　　　  D. less

A. who　　　　     B. what　　　　 C. whoever　　　 D. whatever

A. using　　　      B. making　     C. spending　　   D. wasting

A. stop　　　　     B. forbid        C. separate　　　  D. leave

A. Happily　　      B. Luckily       C. Unfortunately   D. Badly

A. Seldom　　　    B. Always       C. Hardly　　　  D. Sometimes

A. take　　　　     B. share         C. get　　       D. hold

A. harm　　　　    B. good         C. favor　　　　 D. wrong

A. worried　　　    B. puzzled       C. surprised　　  D. disappointed

A. writers　　　     B. teachers      C. parents　　　  D. readers

A. get off　　　     B. come into     C. break down　  D. get rid of

A three-year independent investigation into the September 11, 2001 attack on the Pentagon has yielded new eyewitness evidence which, according to the Southern California-based researchers who conducted the investigation conclusively (and unfortunately), establishes as a historical fact that the violence which took place in Arlington that day was not the result of a surprise attack by suicide hijackers, but rather a military black operation involving a carefully planned and skillfully executed deception."
A CNN Reporter at the scene states that there is no evidence that a 757 hit the Pentagon.
　  What hit the Pentagon? A Boeing 757 loaded with passengers and fuel right? Who was on Flight 757? According to the Flight Information there were No Arabs on it. That makes me wonder if Flight 757 actually existed at all.
　　From the pictures and the videos, people can find that there are several doubtful points that need to be taken into consideration, for example the marker line on the grass in the satellite and ground pictures, the different colors of the smoke, the hole which the plane impacted, and the standing pylons (架线塔).
　　Also, from the comparison of the different pictures, people can find some other strange points. For example, the gear (齿轮) is not the matching one. The wreckage of the plane is not the one from the American Airlines. The glass on the pavement of the pole is another doubtful point. The last thing that need considering is about the collapse. One of the gif video shows the plane impacting the Pentagon. The only problem with this video footage is that it has been altered (改变) and can not be fully trusted.
　　These crash photos and videos shown here clearly have been doctored (篡改) and don't even match the physics of what happened. So where is the real video? It leaves me many questions. Is this a missile? It is a real enigma.
【小题1】Where can you possibly read this article?