题目内容
3、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. Tuvaluan people became rich overnight B. Signs of sinking have appeared on Tuvaiu C. The news came that the country would be drowned D. Tuvaluan people have suffered from serious diseases E. Desire to enjoy life has caused serious consequences F. Tuvaluan people are improving their living standards despite the rising sea |
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If you suddenly received a lot of money, how would you spend it? For the people of Tuvalu, a tiny state comprising nine islands in the South Pacific, something unusual happened. In 1999 Tuvalu, with its population of 11,000,was the third poorest state in the world. Later, Tuvalu received a domain name on the Internet —— the letters “.tv”. A communication company from California quickly offered to buy the domain name for $ 40 million. The islanders became very rich.
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At the same time the islanders received some very bad news. Due to global warming, and because the islands are only 3m above sea level, Tuvalu will probably become the first state in the world to disappear under the sea. According to scientific estimates, the islands will suffer severe floods within the next 15 - 20 years, and by the end of the century, the islands will have disappeared from sight altogether.
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You can already see signs of the rising sea on Tuvalu. Pools of seawater appear here and there, some beaches are swallowed by the waves, and the roots of trees are rotting by the ocean. The rains cause temporary floods.
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But despite these problems, the Tuvaluan had their new money. Paul Lindsay, a documentary film - maker, went all the way to Tuvalu, and came back with an incredible story. As the water rises, the Tuvaluan are using the money to develop the land that is soon to disappear. They are building new houses, planning nightclubs, restaurants and hotels, and new cars are driving around on new roads. "Just because we are sinking, it doesn't mean we don't want to raise our standards of living." Lindsay was told by Sam Teo, Tuvalu's minister for natural resources.
5. ___
Of the $ 40 million Tuvalu received through the Internet deal, $ 10 million was used to asphalt the islands' L9km of roads. Before 1999 there were four cars on the islands. The Tuvaluan used to walk or cycle everywhere. There was a flood of imported foods and goods and soon these had unexpected consequences. The Tuvaluan people now suffer from diseases such as obesity, high blood pressure and diabetes. Others discovered that it was too expensive for them to keep their cars. There is now a huge rubbish dump in the middle of this tropical paradise, covered with abandoned cars and other waste.
试题答案
3、ACBFE
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.
| A．Causes of overusing fluoride | B．Negative effects of fluoride |
| C．Safe use of fluoride | D．The expert’s background information |
| E．No need to worry about fluoride poisoning | |
| F．Solutions to improper use of fluoride | |
I have heard that fluoride can help stop dental decay, but I recently read that it is poisonous．Which of these is true? How can children use fluoride safely?
This question is answered by Dr Marcia M．Rich who practises general dentistry in Newholt．She is also a lecturer at the University and a writer for the monthly magazine Your Dentist Cares．
My answer to the first question is to stress that fluoride works well and is safe when users follow instructions．Young children have a tendency to swallow toothpaste, which is why they should only have a tiny amount of fluoride toothpaste on their toothbrush．If this simple measure is taken, parents can be confident that children will be protected against tooth decay, and come to no harm.
Almost all medicines have an adverse effect－or even be deadly－if they are not taken as directed．So you are right－fluoride can be poisonous if it is swallowed in very large quantities．It is for the reason that fluoride supplements can only be obtained on prescription from the doctor or dentist．Please be assured that fluoride overdoses are rare－in fact, I have never heard of any fatal incidents related to fluoride poisoning.
Scientific studies have shown that fluoride can help to prevent cavities as long as it is used correctly．If fluoride is abused, there is a risk of illness or even deaths in extreme cases．If a deadly amount of fluoride is taken, immediate first-aid could save a life．A person who has swallowed a large amount of fluoride will probably start vomiting．If not, the patient should be given milk or antacid and taken to the nearest hospital for emergency treatment.
Taking too much fluoride while teeth are growing can lead to a condition called dental fluorosis．The most likely cause is the swallowing of fluoride toothpastes by young children．It can also be caused by inappropriate use of fluoride drop or other fluoride supplements, for example when fluoride is already is already present in drinking water．
查看习题详情和答案>>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.
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o swallow toothpaste, which is why they should only have a tiny amount of fluoride toothpaste on their toothbrush．If this simple measure is taken, parents can be confident that children will be protected against tooth decay, and come to no harm.