题目内容
Read the following text and choose the most suitable heading from A-F for each paragraph．There is one extra heading which you do not need．
1．________
A blue hole is a flooded sea cave with a hole that opens up at the land's surface．These cave systems form in carbonate rock, often on islands．Some blue holes have very special rock formations and water chemistry．Far below sea level, they contain some of the harshest environments on Earth, with no oxygen and no light．Yet these areas are filled with life forms that have adapted to the extreme conditions．
2．________
Blue holes get their name from the color some have when seen from the air．The color is usually a reflection of the sky on the water．Blue holes are the result of erosion in which water breaks down rock．Rain falling thousands of years ago contained chemicals which slowly wore away at the limestone landmass．These holes later filled with sea water as the sea level changed．The rising and falling of sea levels and the mixture of salt and fresh water further wore away at these cave formations．
3．________
These flooded cave systems can be found in the ocean, or they can be found inland．Ocean caves are affected by tides, so they always have water movement．But blue holes on land are very still．They have several layers of water, chemicals, and bacteria．The top layer of fresh water comes from rainfall．This layer acts like a cap on top of the layered mixture, and keeps out oxygen from the atmosphere．The fresh water floats on a denser layer of saltwater．Underneath this is a layer of poisonous hydrogen sulfide, produced by bacteria living in the water．Underneath this layer is anoxic seawater－water that does not contain any oxygen．
4．________
Information gathered from these blue holes is helping scientists to increase their understanding of biology, archaeology and geology．But exploring these blue hole environments brings danger as well as discovery．Scientists are interested in these caves because oxygen-free conditions there are similar to those on Earth long ago, before oxygen existed on our planet．But there are many difficulties involved in diving into blue holes．
5．________
One reason blue holes have not been fully explored is that they can be extremely dangerous．There are many safety rules that divers must follow to help ensure their survival．First, divers must have training and experience to swim in these caves．Divers who explore a cave for the first time must establish a thin rope called a guideline．This line helps them to safely enter and exit the cave without getting lost．
解析：
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F C A B E |
特高级教师点拨系列答案Directions: Read the following text and choose the most suitable heading from A-F for each paragraph. There is one extra heading which you do not need.
| Learn how to relax The right amount of stress is a necessity Share your stress Take care of yourself E. Try physical activities F. Be a participant |
Stress comes from mental or emotional activity and physical activity. It is unique and personal to each of us. You need stress in your life. Without stress, life would be dull and unexciting. Stress adds flavour, challenge, and opportunity to life. Too much stress, however, can seriously affect your physical and mental peace. A major challenge in this stress-filled world of today is to make the stress in your life work for you instead of against you.
【小题2】 ____________
When you are nervous, angry, or upset, release the pressure through exercise or physical activities. Running, walking, playing tennis, or working in your garden are just some of the activities you might try. Physical exercise will relieve that “uptight” feeling, relax you, and turn the frowns (皱眉) into smiles. Remember, your body and your mind work together.
【小题3】____________
You are special. Get enough rest and eat well. If a problem is beyond your control and cannot be changed at the moment, don’t fight the situation. If you are irritable (急躁的) and tense from lack of sleep or if you are not eating correctly, you will have less ability to deal with stressful situations. If stress repeatedly keeps you from sleeping, you need a break from your daily routine to just relax and have fun, or you should ask your doctor for help. Be good to yourself.
【小题4】____________
One way to keep from getting aboard, sad, and lonely is to go where it’s all happening. Sitting alone can make you feel disappointed. Instead of feeling sorry for yourself, get involved. Offer your services in neighbourhood or volunteer organizations. Help yourself by helping other people. Get involved in the world and the people around you, and you’ll find they will be attracted to you. You will be on your way to make new friends and enjoy new activities.
【小题5】____________
The best way of avoiding stress is to relax. Unfortunately, many people try to relax at the same pace that they lead the rest of their lives. For a while, forget your worries about time, productivity, and “doing right”. You will find satisfaction in just being, without struggling hard. Find activities that give you pleasure and that are good for your mental and physical well-being. Read a good book or listen to beautiful music to create a sense of peace. Forget about always winning. Focus on relaxation, enjoyment, and health.
Section C
Directions: Read the following text and choose the most suitable heading from A-F for each paragraph. There is one extra heading which you do not need.
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A Preparation for taking a citizenship test B Citizenship tests in European countries C Cultural differences and conflicts D New US Citizenship Test E Different views on the new citizenship test F Goal of the new citizenship test |
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80. |
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Last week, a sample of the new US citizenship exam was released by the US Citizenship and Immigration Services（US-CIS）. It will be tried out in 10 cities early next year to replace the current test in 2008. Instead of asking how many stripes the US flag has, as the current test does, the new one asks why there are l3 stripes. Instead of having to name the branches of government, an applicant is asked to explain why there are three.
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81. |
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The newly released US citizenship exam has included more information and knowledge. People who take it need to know more about the adopted country and have a deeper insight into its culture and values. “The goal is to make it more meaningful.” explains Emilio Gonzalez, director of the US—CIS. Immigrants who pass it are expected to have a better “understanding and respect” for US civic values, Gonzalez says.
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82. |
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The US isn't the only country dealing with citizenship tests that aim to get a “shared commitment” from immigrants for their adopted country's “values”. In recent years, in addition to the usual requirement of language／work skills and economic status, several European countries have adopted citizenship tests. Britain introduced a new citizenship test last November. In March, a new Dutch law took effect requiring all would-be immigrants to take a citizenship test. It involved watching a video showing nude（裸体的）women bathing at beaches and gay（同性恋的）men kissing in public. The aim was to ensure that “newcomers will be comfortable with the country's liberal social mores（风俗）”.
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83. |
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Europe has been known for welcoming immigrants for decades. But, today, the fact is that some immigrants are kept apart from local citizens by culture and they become hostile (敌对的) to each other. Promoting unity has become a major concern for European countries, after the rioting in Muslim ghettoes（少数民族聚居区）in France and the killing of Dutch public figures by religious extremists.
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84. |
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Officials believe that a person's attachment to a country can be tested by his or her knowledge of the country. However, some critics say that the changes can do little to help people assimilate（同化）themselves. “Immigration is a culture war today. Is giving a new test the right way to lessen the accusations in that fight?” says Ali Noorani, of the Massachusetts Immigrant and Refugee Advocacy Coalition（难民辩护联盟）.