Travel is exciting and summer is a busy period for holiday travel. Many people will travel great distances in airplanes, cars or other vehicles. Experts say people should know about other health problems that can strike when traveling by air.
One of these is a condition called hypoxia (缺氧癥). It results from a lack of oxygen to the brain. Experts say the body begins losing oxygen minutes after an airplane leaves the ground. The air pressure in a plane during flight is lower than at sea level. This makes it more difficult for the body to effectively use the same amount of oxygen as it would on the ground. Fewer oxygen molecules （分子） cross the tissues (組織) in the lungs and reach the bloodstream.
The result is a five to twenty percent drop in the amount of oxygen in the blood. This reduces the amount of oxygen that reaches the organs of the body.
One effect of this lack of oxygen to the brain is a headache. When this happens, the heart attempts to fix the situation by beating harder and faster. This can make the traveler feel tired.
These signs of hypoxia are not dangerous in a healthy person. But a drop in oxygen level can cause a health emergency in people with heart or lung problems. They might lose consciousness or even suffer a heart attack.
Experts say that smoking cigarettes and drinking alcoholic liquids also reduce the body’s ability to use oxygen. So they suggest that people not drink alcohol or smoke cigarettes either before or during a flight. They also say persons with heart or lung problems should seek advice from their doctors before flying.
小題1:The author writes the passage mainly to ___.
A．warn people in airplanes of possible dangers
B．offer some advice on avoiding health problems
C．explain the causes and effects of hypoxia
D．a(chǎn)dvise people not to smoke or drink alcohol
小題2:According to the passage, what leads to hypoxia?
A．The brain lacks enough oxygen.
B．The air pressure in a plane is too high
C．Our body needs less oxygen during takeoff.
D．The bloodstream contains no oxygen molecules.
小題3:The underlined part “fix the situation” means “___”.
A．use more oxygen it needs
B．increase the air pressure
C．reduce the amount of blood
D．bump more blood to the brain
小題4:Why should passengers not smoke or drink before flying?
A．They weaken the body’s ability to use oxygen.
B．Smoking may pollute the air inside the airplane.
C．Drinking alcohol may raise one’s blood pressure.
D．Drinking is forbidden at the airport.
小題5:Do you think which the following title is the best title for this passage?
A．Tralling
B．how to travel
C．some suggestions about on the plane while travelling
D．the causes and effects of hypoxia

小題1:C
小題2:A
小題3:D
小題4:A
小題5:D
文章講述的是關(guān)于坐飛機旅行時會出現(xiàn)的缺氧癥的原因和造成的后果。
小題1:推理判斷題，根據(jù)第一段的Experts say people should know about other health problems that can strike when traveling by air可知，文章是向讀者解釋缺氧癥的原因和后果。
小題2:事實細(xì)節(jié)題，根據(jù)第二段It results from a lack of oxygen to the brain可知，是由于大腦缺氧導(dǎo)致
小題3:推理判斷題，根據(jù)第三段內(nèi)容可知，解決這種情況指的是給大腦提供更多的血液。
小題4:事實細(xì)節(jié)題，根據(jù)最后一段Experts say that smoking cigarettes and drinking alcoholic liquids also reduce the body’s ability to use oxygen可知，
小題5:主旨大意題，文章講述的是關(guān)于坐飛機旅行時會出現(xiàn)的缺氧癥的原因和造成的后果
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科目：高中英語 來源：不詳 題型：閱讀理解

When the TV viewer turns on his set, what sort of programs does he have to choose from? You might think there would be more programs devoted to entertainment than to anything else, but that’s not the case. In most countries, fewer than 20% of broadcasting hours are devoted to entertainment. U.S. figures are high----34.8% , and the unloving Canadians are even higher with 44%. Except Canada and Italy, all countries give more broadcasting time to education than to either information (news , documentaries and so on) or entertainment programs. Of course, few educational broadcasts take place during peak viewing times. In Japan though , more than 60%of broadcasting time is taken up with education of one kind of anther----just another example of the businesslike Japanese philosophy. In the U.K., the figure is 56.4% . the Italians have fewer educational programs than anyone else. They don’t go in for entertainment either. Only about ten percent of viewing time is devoted to dramas and serials, quiz shows, music, sports etc. You will find more news information programs on Italian TV than anything else. That’s understandable in a country experiencing social and political changes. Italians rely on TV to tell them what’s going on---and events are happening almost too fast to follow. The percentage of time the U.S. devoted to news and documentary programs is much smaller. After education, most TV time is given to entertainment. Many of these programs are shown around the world.
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D．Expect TV to tell them the latest news about what is going on in their country
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科目：高中英語 來源：不詳 題型：閱讀理解

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B．More than 25 million
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B．suggest common Internet language
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A．Fathers can't possibly know it.
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C．Online game players may know it.
D．"Super Girl" shouldn't have used it.
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This kind of knowledge will show us the famous artist at work. It may also help to explain Mona Lisa’s smile, which has puzzled art lovers for centuries.
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A．the famous artist Leonardo da Vinci
B．a(chǎn)n American physicist’s discovery
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A．a(chǎn) famous artist B．a(chǎn) famous painting
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科目：高中英語 來源：不詳 題型：閱讀理解


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科目：高中英語 來源：不詳 題型：完形填空


You are mistaken if you think all Chinese people speak in the same way. Have you ever seen a person from Shanghai try talking to 1________ from Guangzhou? It is quite likely 2________ both of them may feel puzzled! The Chinese language, 3________ a whole, uses the same set of characters, but even the same characters can have 4________ pronunciations. That is 5_______ it is difficult for people to understand each other. Luckily, the widespread use of Putonghua in China has made a great contribution 6________ people’s communication, though people from different areas tend to speak with various accents.
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科目：高中英語 來源：不詳 題型：閱讀理解

Australia －a huge island continent that lies to the south of Asia．Australia－more than two hundred years old, a nation that is still growing．
Its big cities lie on the southeast coast, this is where most Australians live．Australians prefer to own their own houses, though some live in apartments．Australians are a suburban people．The suburbs surround the cities for many miles, and so efficient transport is of great importance．As the economy grows, so do its industries- a higher level of production, a wider range of products．
The Australian works hard, but he likes his leisure．The climate makes outdoor activities the most popular．
Canberra, the capital of Australia, is a planned modem city located inland．Australia is governed by a parliamentary democracy．The representatives of other countries have their embassies here．Australia wants to strengthen relations with her neighbors．
Australia is a strange land, a land of vast expanses- fertile valleys, snow fields and deserts- also a land with unique animal, many that can not be found on any other continent in the world today．
Much of the continent is dry, but man has utilized the land, made it productive, with its tools, with its technology．This is the driest continent of all, and water is a precious possession, more precious than all other natural resources．Large dams are built to collect the water, there to irrigate the fields of pastures and crops． But Australia is changing．The land of wool and wheat is now a land of large-scale industry and mining．The costs of developing the new mineral discoveries are enormous, but the rewards are great too．
Australia — a young and developing nation．Australia — a nation that wants to communicate with its neighbors．
小題1:Australia is an island located ______ of Asia and its big cities lie ____ of the coast．
A．to the south; on the southeast
B．to the north; on the southwest
C．to the east; on the northeast
D．to the east; on the southwest
小題2:We can infer from the passage that the Australian likes outdoor activities for the _____ climate．
A．dull and wet
B．fine and shiny
C．gloomy and rainy
D．wet and cold
小題3:____ is the most precious source in Australia．
A．Mineral resourceB．AnimalC．DesertD．Water
小題4:Which of the following statements about Australia is wrong?
A．Australians are a suburban people
B．Australia is governed by a parliamentary democracy．
C．Australia prefers to live in the downtown of big cities．
D．Wool and wheat used to be the main products of Australia．

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