An allergy is a strong reaction to a substance. Many things can cause allergies. The most common cause is pollen (花粉), which is usually produced by trees in the spring, grasses in the summer and weeds in the fall, as part of their reproductive process.

Other causes include organisms, chemicals, plants and dead skin particles from dogs and cats can also cause allergic reactions. So can insect stings and some food.

The most common kind of allergic reactions is itchy (痒的) , watery eyes and a blocked or watery nose. Allergies can also cause red, itchy skin. Some reactions can be life-threatening, for example, when breathing passages become blocked.

It is not always easy to avoid allergies. Drugs may offer an effective treatment. Another treatment used in some cases is called immunotherapy. A patient is injected with small amounts of the allergy-causing substance. The idea is that larger and larger amounts are given over time until the patient develops resistance in his body.

In the United States, experts estimate that up to 8% of young children have food allergies. Every year these allergies cause about 30,000 cases with severe reactions that require immediate treatment. It can result in breathing trouble and in some cases death. It is said that about 100 to 200 people will die. It is said that most of the reactions are caused by peanuts and tree nuts like walnuts.

People can also be allergic to medicines. The American Academy of Allergy, Asthma and Immunology says about 10％ of bad reactions to commonly used medicines are allergic. In other words, a person’s immune system overreacts and produces an allergic reaction. The most common reactions include skin rashes, itching, breathing problems and swelling in areas such as the face.

67. Allergies seldom occur in winter because ________.

　 A. plants don’t usually flower in cold weather

　 B. people usually wear thick clothes

　 C. pollen is active below freezing point

　 D. the weather is too cold for viruses

68. What will happen if one’s breathing passages get blocked?

　 A. It is nothing serious.               B. One’s life is at risk.

C. One has to be sent to hospital.           D. One is sure to breathe easily.

69. According to immunotherapy, the patient is supposed to________.

　 A. take some medicines to produce antibodies

　 B. have immediate operations

　 C. be given the allergy-causing substance until the patient develops resistance

　 D. be exposed to enough allergy-causing substances

70. The best title would be _______.

　 A. The ABCs of Allergies             B. The Cause of Allergies

　 C. The Treatment of Allergies          D. The Prevention of Allergies

  

 

　　Are some people born clever, and others born stupid? Or is intelligence developed by our environment and our experiences? Strangely enough, the answer to both these questions is yes. To some extent our intelligence is given us at birth, and no amount of special education can make a genius out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person's intelligence are fixed at birth, but whether or not he reaches those limits will depend on his environment. This view, now held by most experts, can be supported in a number of ways.

　　It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random(随机地) from the population,it is likely that their degrees of intelligence will be completely different. If on the other hand we take two identical (完全相同的) twins they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth.

　　Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing, and this indicates that environment as well as birth playsa part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all, are likely to have similar degrees of intelligence.

 

1.Which of these sentences best describes the writer’s point in Para. 1?

　　A. To some extent, intelligence is given at birth.

　　B. Intelligence is developed by the environment.

　　C. Some people are born clever and others born stupid.

　　D. Intelligence is fixed at birth, but is developed by the environment.

 

2. It is suggested in this passage that_______.

　　A. unrelated people are not likely to have different intelligence

　　B. close relations usually have similar intelligence

　　C. the closer the blood relationship between people, the more different they are likely

　 　　to be in intelligence

　　D. people who live in close contact with each other are not likely to have similar degrees

　 　　of intelligence

 

3. In Para. 1, the word "surroundings" means_______.

　　A. intelligence 　　　　　B. life

　　C. environments 　　　　　D. housing

4.The best title for this article would be_______.

　　A. On Intelligence

　　B. What Intelligence Means

　　C. We are Born with Intelligence

　　D. Environment Plays a Part in Developing Intelligence

 

 

China’s second manned（人造的） space flight will be done by two astronauts（宇航员） over five days in 2005. “Shenzhou-VI will be sent into space sometime in 2005,” said Zuo Saichun, a spokesperson of the China Aerospace Science and Technology (CAST). “The spacecraft（宇宙飞船） will make new breakthroughs（突破性进展） in China’s manned space technology.”
Unlike Shenzhou-V, a little more than a year ago (in October, 2003), the next flight will see two astronauts fly in space for five days. Their capsule (太空舱) is designed to be capable（能够）of orbiting（绕轨道运行） for a whole week, the spokesperson said. “For the first time, astronauts will enter and live in the orbital module（舱） of the spacecraft to do scientific experiments,” said a statement from CAST. CAST did not say what those experiments will be.
In Shenzhou-VI, scientists have changed the spacecraft’s configuration (构形) to reduce its weight, and tried to improve the performance of on-board equipment. They have also worked to make sure of the energy supply of the spacecraft and further improve its safety. So far, scientists have worked out ways to solve problems on environmental control and life support. Shenzhou-VI will be sent into orbit atop（在……顶上） a Long March 2F rocket.
Meanwhile, a model of the Chang’e-1 satellite is expected to be sent to orbit the moon in two years. The satellite, part of the three-stage programme, would be followed by the landing of an unmanned vehicle on the moon in the second stage by 2010 and collecting samples（样品） of lunar soil by 2020 in the final stage, according to Sun Laiyan, director of the China National Space Administration.
【小题1】. Which of the following about Shenzhou-VI is NOT true?
　　  

A．It will be sent into space in 2005.

B．It is capable of orbiting for two weeks.

C．It will be sent into orbit atop a Long March 2F rocket.

D．It will be sent into space with two astronauts.

【小题2】. According to the passage, the following problems should be solved before Shenzhou-VI is sent into space EXCEPT ______.
　　  

A．environmental control

B．energy supply

C．life support

D．lunar soil collecting

【小题3】. Which of the following does NOT belong to the three-stage programme?
　　  

A．Shenzhou-VI’s being sent into space.

B．A model of the Chang’e-1 satellite will be sent to orbit the moon.

C．The landing of an unmanned vehicle on the moon.

D．Collecting samples of lunar soil.

【小题4】. The passage mainly tells us ______.
　　  

A．some problems need solving before Shenzhou-VI is sent into space

B．Shenzhou-VI will be sent into space in 2005

C．what China’s space programme is

D．how China’s three-stage programme is carried out

　　Are some people born clever, and others born stupid? Or is intelligence developed by our environment and our experiences? Strangely enough, the answer to both these questions is yes. To some extent our intelligence is given us at birth, and no amount of special education can make a genius out of a child born with low intelligence. On the other hand, a child who lives in a boring environment will develop his intelligence less than one who lives in rich and varied surroundings. Thus the limits of a person's intelligence are fixed at birth, but whether or not he reaches those limits will depend on his environment. This view, now held by most experts, can be supported in a number of ways.

　　It is easy to show that intelligence is to some extent something we are born with. The closer the blood relationship between two people, the closer they are likely to be in intelligence. Thus if we take two unrelated people at random(随机地) from the population,it is likely that their degrees of intelligence will be completely different. If on the other hand we take two identical (完全相同的) twins they will very likely be as intelligent as each other. Relations like brothers and sisters, parents and children, usually have similar intelligence, and this clearly suggests that intelligence depends on birth.

　　Imagine now that we take two identical twins and put them in different environments. We might send one, for example, to a university and the other to a factory where the work is boring. We would soon find differences in intelligence developing, and this indicates that environment as well as birth playsa part. This conclusion is also suggested by the fact that people who live in close contact with each other, but who are not related at all, are likely to have similar degrees of intelligence.

Which of these sentences best describes the writer’s point in Para. 1?

　　A. To some extent, intelligence is given at birth.

　　B. Intelligence is developed by the environment.

　　C. Some people are born clever and others born stupid.

　　D. Intelligence is fixed at birth, but is developed by the environment.

It is suggested in this passage that_______.

　　A. unrelated people are not likely to have different intelligence

　　B. close relations usually have similar intelligence

　　C. the closer the blood relationship between people, the more different they are likely

　 　　to be in intelligence

　　D. people who live in close contact with each other are not likely to have similar degrees

　 　　of intelligence

In Para. 1, the word "surroundings" means_______.

　　A. intelligence 　　　　　B. life

　　C. environments 　　　　　D. housing

The best title for this article would be_______.

　　A. On Intelligence

　　B. What Intelligence Means

　　C. We are Born with Intelligence

　　D. Environment Plays a Part in Developing Intelligence

— Would you lend me ________ paper to write ________ paper?

　　　　— Sorry, I haven’t any.

　　A. any; some　　　　　　　　　　 B. any; a

　　C. a; some　　　　　　　　　　　 D. some; a