题目内容
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Imagine this: you wake up each morning to find your sister lying beside you. To get dressed and tie your shoes, you use one hand and she uses another. You do everything out together, too, even sitting on the same chair at lunch and tiding on the same bicycle. That's what life is like for six-year-old Betty and Abby. Like most twins, the two girls look very much alike, but unlike most twins, Betty and Abby share parts of the same body. ins like Betty and Abby are rare. Only about 40 sets are born in the United States each year. Few survive as long as Betty and Abby. That's because twins often share vital organs, like a heart or brain. The shared organs are often badly shaped and may not be strong enough to support both twins. But Betty and Abby each has her own head, heart and stomach, which function normally. Because she has three or four lungs which provide plenty of oxygen for both twins. Most of their completely shared organs led below the waist. Betty and Abby live relatively normal lives, They attend a regular school, and each does her own schoolwork. They prefer to do some projects together, though, for example, to cut out paper dolls, one twin holds the paper, while the other uses the scissors. But sometimes, the girls don't want to do the same thing, for example, sometimes they want to play with different toys. What do they do then？ "We toss a coin", says Abby
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To diagnose influenza, the virus must be identified by using a microscope.
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Part Ⅱ Reading Comprehension (Skimming and Scanning)
Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1.
For questions 1～7, mark
Y (for YES ) if the statement agrees with the information given in the passage;
N (for NO ) if the statement contradicts the information given in the passage;
NG (for NOT GIVEN) if the information is not given in the passage.
For questions 8～10, complete the sentences With the information given in the passage.
Influenza
Influenza is caused by a virus transmitted from one person to another in droplets coughed or sneezed into the air. It is characterized by cold like symptoms plus chills, fever, headaches, muscle aches, and fatigue. Most people recover completely in about a week.
In addition to humans, influenza occurs in pigs, horses, and several other mammals (哺乳动物) as well as in certain wild and domesticated birds. At least some influenza viruses can jump from one species to another. For example, in late 1997 a strain of the influenza virus in chickens began to infect humans in Hong Kong, leading to a massive effect to remove the strain.
Many millions of people develop the flu each year. In most years less than 1 percent of those infected die. Nonetheless, this translates into large numbers. The United States Centers for Disease Control and Prevention (CDC) estimates that influenza causes more than 20,000 deaths in the United States each year; combined, influenza and pneumonia (肺炎)are among the nation's ten leading causes of death. During epidemics and pandemics, death rates soar. The influenza pandemic that occurred between 1918 and 1919--the worse on record--killed about 500,000 people in the United States and more than 20 million people worldwide.
Symptoms and diagnosis
Influenza is an acute disease with a rapid onset and obvious symptoms. After the influenza virus invades a person's body, an period of one or two days passes before symptoms appear. Classic symptoms include sore throat, dry cough, stuffed or runny no, se, chills, fever with temperatures as high as 39℃, aching muscles and joints, headache, loss of appetite, occasional nausea and vomiting, and fatigue. For most people flu symptoms begin to subside after two to three days and disappear in seven to ten days. However, coughing and fatigue may persist for two or more weeks.
Death from influenza itself is rare. But influenza can worsen underlying medical conditions, such as heart or lung disease. Invading influenza viruses produce inflammation (发炎) in the lining of the respiratory tract, damage that increases the risk that secondary infections will develop. Common complications include bronchitis, sinusitis, and bacterial pneumonia, occurring most frequently in the elderly, people on chemotherapy (化学疗法), and people with acquired immunodeficiency syndrome (AIDS) or another disease that compromises the immune system. If properly treated, these complications seldom are fatal.
Because influenza is so common and exhibits standard symptoms, doctors often diagnose the illness based on the season and whether flu cases have recently been reported in the area. TO prove a diagnosis of influenza in a patient, the virus must be isolated from the person's nasal or cough secretions or blood and identified under a microscope.
Treatment and prevention
There is no specific cure for influenza. Recommended treatment usually consists of bed rest and increased intake of fluids until fever and other symptoms lessen in severit
A．They go to a regular school.B．They attend a special school.C．They are taught by thei
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