题目内容
Reduce, reuse, and recycle. This familiar environmentalist slogan tells us how to reduce the amount of rubbish that ends up in landfills and waterways. The concept is being used to deal with one possibly dangerous form of waste — electronic junk (电子垃圾), such as old computers, cell phones, and televisions. But this process for managing e-waste may be used in an unscrupulous way more often than not used, a recent report suggests.
“A lot of these materials are being sent to developing nations under the excuse of reuse — to bridge the digital divide,” said Richard Gutierrez, a policy researcher.
One of the problems is that no one proves whether these old machines work before they hit the seaways. Because of this, the report says, e-waste is a growing problem in Lagos, Nigeria, and elsewhere in the developing world. Much of the waste ends up being thrown away along rivers and roads. Often it’s picked apart by poor people, who may face dangerous exposure to poisonous chemicals in the equipment.
Businessmen also pay workers a little money to get back materials such as gold and copper. This low-tech recovery process could expose workers and the local environment to many dangerous materials used to build electronics. According to Gutierrez, this shadow economy exists because the excuse of recycling and reusing electronics gives businessmen “a green passport” to ship waste around the globe. “Developing nations must take upon some of the responsibility themselves,” Gutierrez said. But, he added, “A greater portion of this responsibility should fall on the exporting state.”
China, for example, has become a dumping place for large amounts of e-waste. The nation is beginning to take action to stop the flow of dangerous materials across its borders. The Chinese government, after many years of denial is finally beginning to take the lead.
【小题1】 The passage mainly tells us that _______.
| A．developing countries are facing serious environmental problems |
| B．e-waste is sent to developing countries under the excuse of reuse |
| C．developing countries are making full use of e-waste |
| D．e-waste is a growing problem in developed countries |
| A．A lot of e-waste is dumped in developing countries. |
| B．Poor people break up e-waste to collect some valuable materials. |
| C．The problem of e-waste is growing in developing countries. |
| D．Old computers and TVs still work before they are sent abroad. |
| A．immoral | B．wrong | C．proud | D．unsafe |
| A．developing countries should be responsible for this problem |
| B．exporting countries should be mainly responsible for this problem |
| C．neither rich nor poor countries should be blamed for this problem |
| D．poor countries should be blamed for this problem |
【小题1】B
【小题2】C
【小题3】A
【小题4】B
解析【小题1】根据文章第二段可知，发达国家已再利用为借口把电子污染抛向发展中国家。所以选择B。
【小题2】第二段提出问题，第三段就这个话题“电子垃圾仔发展中国家不断增长的问题”展开讨论。
【小题3】发达国家把电子垃圾带到发达国家是一种不道德的行为，所以选A。
【小题4】根据第四段最后一句可知B项正确。出口国家应该对电子垃圾负有直接责任。
阅读快车系列答案Directions: Read the following passage. Complete the diagram by using the information from the passage.
Write NO MORE THAN THREE WORDS for each answer.
Dolphins are not fish; they’re mammals. They are warm-blooded like man and give birth to one baby called a calf at a time. At birth a calf is about 90—130cm long and grows to about 4m. They live up to 40 years. They are highly sociable animals.
Their teeth are interlocking rows of hooks, suitable for holding slippery fish. They eat fish whole starting with head first. When they go wild they keep their mouth open and sometimes keep it nodding to express their aggression. Greater aggression is shown by violent jaw clapping. Dolphins breathe through their blowhole(呼吸孔) located at the top of their head. The dolphin’s eyes produce a special slippery secretion(分泌物) which protects the eyes from foreign objects and water friction.
Dolphins use their powerful tail to move through the water. They also use their tail while hunting. They slap their tail rapidly when they get annoyed or when they want to indicate the sign of danger to alert other dolphins.
The dolphin’s skin is completely smooth allowing the dolphin to move easily through the water, and also reduce heat loss. Their skin may bear rake marks from other dolphin’s teeth during play or mating, and can easily become badly sunburned if they strand(搁浅).
Their bodies are very streamlined so they may swim at high speed through the water, and an example of this is their ears. Dolphin’s ears are barely noticeable marked only by a small hole just behind the eyes.
While sleeping, it shuts down only half of its brain, as its breathing is under voluntary control. Dolphins take short catnaps, floating just below the surface, and then slowly rising to breathe. Often dolphins are very active during night time, for some this is their main feeding time. Dolphins are able to dive to great depths, and also leap to great heights. They may leap to avoid predators or to show how powerful they are to females at mating time.
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Title: 71.___________ Ⅰ. Characteristics ● mammals : warm-blooded animals and one baby at a birth ● length : 90cm-4m ● lifespan : 40 years ● highly sociable animals Ⅱ. 72.___________ ● teeth→ holding slippery fish and eating fish whole 73.__________ ● opening and nodding mouth→ expressing their aggression ● 74._________ jaw→ expressing greater aggression ● blowhole at the top of their head→ 75.____________ ● eyes with a special slippery secretion→ protecting the eyes from foreign objects and water friction ● 76._____________ ears→ swimming at high speed through the water Ⅲ. Tail ● powerful to move through the water ● 77.___________ and expressing annoyance and danger Ⅳ. 78.___________ ● completely smooth to move easily through the water and reduce heat loss ● full of rake marks to become badly sunburned easily Ⅴ. Body ● 79._____________ to swim at high speed through the water Ⅵ. Habitual nature ● short catnaps with only half of its brain ● 80.___________ breathing ● activities during night time for feeding |
Below is some advice on how to prevent colds and flu.
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8 Ways to Avoid Colds and Flu 1. Wash your hands and wash them often The US Naval Health Research Center conducted a study of 40,000 volunteers who were ordered to wash their hands five times a day. The volunteers cut their incidence of flu by 45 percent. 2. Wash your hands twice every time you wash them Researchers at Columbia University found one hand washing had little effect, even when using antibacterial soap. So wash twice if you’re serious about preventing colds. 3. Change your toothbrush every three months You think your toothbrush gets your teeth clean — and it does. But once you’ve finished brushing, it can be a breeding ground for germs. Most dentists recommend you change your brush every two or three months. It’s also a good idea to replace it after you’ve had a cold or flu. 4. Sneeze and cough into your arm or tissue (纸巾) Whoever taught us to cover our mouths when we cough or sneeze got it wrong. That just puts the germs right on our hands, where you can spread them to objects — and other people. Instead, put your arm over your mouth and nose when you sneeze or cough if a tissue isn’t handy. It’s pretty rare that you shake someone’s arm, after all. 5. Stop blaming yourself when things go wrong Believe it or not, blaming yourself makes you more likely to catch a cold! Researchers found that even those who had control over their work were more likely to begin sneezing if they lacked confidence or tended to blame themselves when things went wrong. Such attitudes make people more stressed on the job, and stress, as you know, can challenge your immune system. 6. Once a day, sit in a quiet, dim room, close your eyes, and focus on one word Meditate (冥想). It is a proven way to reduce stress. Studies have shown that stress weakens your immune system. In fact, people with high stress levels have up to twice the number of colds as non-stressed people. 7. Get moving Ride a bike, join a dance class, or go for a walk. A study found that older women who did 45 minutes of gentle exercise, five times a week for a year, were up to three times less likely to get a cold than women who took little exercise. The researchers found that the exercisers’ immune system was strongest in the last three months of the study. 8. Leave the windows in your house open a crack You don’t have to keep all of them open, but one or two in the rooms in which you spend the most time. This is particularly important if you live in a newer home, where fresh circulating air has been the victim of energy efficiency. A bit of fresh air will do wonders for chasing out germs. |
1.To prevent yourself from getting colds, you should wash your hands____.
A. twice every hour B. twice every time
C. five times every hour D. five times every time
2.When you cough or sneeze, you should ____.
A. put your hands over your mouth
B. avoid shaking hands with other people
C. cover your mouth with your arm or a tissue
D. keep away from other people
3.Your immune system will be weakened if ____.
A. your stress level is high
B. your room is not bright
C. you have control over your work
D. you do not exercise for 45 minutes every day
4.If you live in a new house, it is particularly important to ____.
A. leave all the windows open a crack
B. leave only one or two windows open to save energy
C. keep one or two windows open in the rooms where you spend the most time
D. keep all the doors and windows open to let in more fresh air when you are at home