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Zanzibar,Tanzania--Hundreds of dead dolphins were washed up on Friday along the shore of a popular tourist place on Tanzania’s northern coast.Scientists have ruled out poisoning.
It was not immediately clear what killed the 400 dolphins,whose dead bodies lied along a 4-kilometer coast of Nungwi,said Narriman Jidawi,a marine biologist at the Institute of Marine Science in Zanzibar.But the bottleneck dolphins,which live in deep offshore waters,had empty stomachs,meaning they could have got lost and had been swimming for some time to reorient themselves.They did not die of hunger and were not poisoned,Jidawi said.
In the US,experts were looking into the possibility that sonar(声呐)from the US submarine could have caused a similar incident in Marothon,Florida,where 68 deep-water dolphins stranded(搁浅)themselves in March 2005.
The deaths are a blow to the tourism industry in Zanzibar,where thousands of visitors go to watch and swim with dolphins.Villagers,fishermen and hotel residents found the dead bodies and told officials.Mussa Aboud,Zanzibar’s director of fisheries,went on state radio to warn the public against eating the dolphins’meat,saying the cause of death had not been found.
The Indo-Pacific bottlenose,commonly known as dolphins,are the most common species in Zanzibar’s coastal waters,with bottlenose and humpback dolphins often found in mixed-species groups.
63.According to the passage,the bottleneck dolphins            
A.are often attacked by submarine in deep water
B.find it hard to find enough food near the coast
C.often fall ill along the shore of a tourist place
D.1ike living in the deep waters near the coast
64.The underlined word“reorient”means           
A.lose their way                   B.find their way
C.look for food                        D.fight against enemies
65.What can we infer from the passage?
A.The dolphins died because of the sonar from US submarines.
B.The dead dolphins can not be eaten as they are poisonous.
C.The US experts are researching sonar at present.
D.The ability of locating is extremely important for dolphins.
66.What would be the best title for the passage?
A.400 dolphins died along the coast of Nungwi.
B.Dolphins are facing increased risk of death.
C.It’s necessary for us to protect dolphins.
D.Nungwi is famous for many dolphins there.

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It is the season for long lines and frayed(紧张的) nerves. Here are some ways to survive a holiday flight.
Lighten up
Do yourself a favor and ship your presents. Nearly every US airline charges a fee to check a bag, so shipping gifts is now cheaper and more convenient than carrying them in your luggage.
Weigh your options
Not knowing what you’re going to pay for your luggage is annoying. So calculate your overweight-luggage fees at home. You can find the fees out in advance by visiting new site Luggage Limits, which provides the latest information on more than 90 airlines.
Leave amateurs in the dust
Trust us and get to the airport an extra half-hour early. The check-in and security lines are filled with inexperienced files, and it’s a hard walking. Plus, if you decide to cut it close you may not get onto the flight at all. To reduce costs, airlines have reduced on flights and routes. The remaining flights are more likely to be oversold, especially on busy travel days. Fliers who check in early are the least likely to get bumped from oversold flights.
Take it public
The rates for renting a car at the airport have more than doubled over the past year because rental lot inventories have decreased dramatically(现住地). True, renting at the airport is convenient, but it’s just not worth it anymore. Unless you really need a car, take public transportation, hop a cab, or beg a friend to pick you up at the airport instead.
Say no to bumper cars
Tell the people picking you up to avoid parking their car. They can hang out in their car for free while waiting to get a call from you when you land. Many airports, including JFK and LAX now feature this sensible choice.
How does the author think of shipping gifts?

A.Unnecessary. B.Expensive. C.Inconvenient. D.Wonderful.

Airlines have reduced flights to _________.

A.deal with crisis B.reduce the time for leave
C.lower the cost D.provide more job chances

It can be learned from the passage that ______.

A.renting a car at the airport is expensive B.taxis stay at the airport free of charge
C.cars can park at the airport for free D.JFK encourages people to take a taxi

What’s the best title for the passage?

A.Five ways to survive a holiday flight. B.Good seasons for flight.
C.Cars at the airport. D.How to board a flight

My friend Dr. Dong had a wonderful chance to go to Seattle to present a paper at a professional meeting. When he got back to Beijing, he told me his experience.
Dr. Dong enjoyed his first days very much. At the medical conference, he felt quite confident in his area of research and was able to perform well in his presentation. But after a few days, he began to feel uncomfortable. His medical English was fine, but the social communication skills were different.
He got more and more worried that he was misunderstanding simple English greetings and table talk conventions(习俗). When someone greeted him with, “Hi, how’s it going?” he thought they had asked him “Where are you going?” and answered with the name of the conference hall, only to get a surprised stare from them. At a western style dinner, a colleague asked, “So how’re you enjoyin’ the States?” he thought he heard, “how are you enjoying your steak?” and answered that he was eating chicken, not beef. That time, they smiled, and patiently repeated the question, then both laughed at the error.
By the end of the meetings, Dr. Dong felt a deep sense of “cultural stress” and was worn out from having to pay attention to so many new expressions and ways of dealing with things. He felt his handshake was not as firm as Americans’, found that people reacted unusually when he modestly insisted his English was not good after they complimented(称赞) him, didn’t know how to accept dinner invitations properly and therefore missed out on going to several lunches, and so on. Eventually, he was so confused that he felt the full impact of “culture shock”.
Why did Dr. Dong travel to Seattle?

A.To improve his spoken English. B.To experience culture shock.
C.To give lectures on his research. D.To attend a medical conference.

Which of the following best describes Dr. Dong’s experience in Seattle?

A.Comfortable—very uncomfortable—uncomfortable.
B.comfortable—very uncomfortable—comfortable.
C.Comfortable—uncomfortable – very uncomfortable.
D.Comfortable—uncomfortable – very comfortable.

Dr. Dong felt a deep sense of “cultural stress” mainly because_______.

A.he was too modest B.he didn’t understand cultural differences
C.he lacked confidence D.he was not good at English listening

Sustainable development is applied to just about everything from energy to clean water and economic growth, and as a result it has become difficult to question either the basic assumptions behind it or the way the concept is put to use. This is especially true in agriculture, where sustainable development is often taken as the only measure of progress without a proper appreciation of historical and cultural perspectives.
To start with, it is important to remember that the nature of agriculture has changed markedly throughout history, and will continue to do so. Medieval agriculture in northern Europe fed, clothed and sheltered a popularly rural society with a much lower population density than it is today. It had smallest effect on biodiversity, and any pollution it caused was typically localized. In terms of energy use and the nutrients captured in the product it was relatively inefficient.
Contrast this with farming since the start of the industrial revolution. Competition from overseas led farmers to specialize and increase yields. Throughout this period food became cheaper, safer and more reliable. However, these changes have also led to habitat loss and to decreasing biodiversity.
What’s more, demand for animal products in developing countries is growing so fast that meeting it will require an extra 300 million tons of grain a year by 2050.yet the growth of cities and industry is reducing the amount of water available for agriculture in many regions.
All this means that agriculture in the 21st century will have to be very different from how it was in the 20th. This will require complete thinking. For example, we need to move away from the idea that traditional practices are unavoidably more sustainable than new ones. We also need to abandon the idea that agriculture can be “zero impact”. The key will be to abandon the rather simple and unchangeable measures of sustainability, which centre on the need to maintain production without increasing damage.
Instead we need a more dynamic explanation, one that looks at the pros and cons of all the various way land is used. There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity. It is clear, for example, that the carbon of transporting tomatoes from Spain to the UK is less than that of producing them in the UK with additional heating and lighting. But we do not know whether lower carbon footprints will always be better for biodiversity.
What is critical is recognizing that sustainable agriculture is not just about sustainable food production.
How do people often measure progress in agriculture?

A.By its productivity.
B.By its impact on the environment.
C.By its sustainability.
D.By its contribution to economic growth.

What does the author think of traditional farming practices?

A.They have remained the same over the centuries.
B.They have not kept pace with population growth.
C.They are not necessarily sustainable.
D.They are environmentally friendly.

What will agriculture be like in the 21st century?

A.It will go through thorough changes.
B.It will supply more animal products.
C.It will abandon traditional farming practices.
D.It will cause zero damage to the environment.

What is the author’s purpose in writing this passage?

A.To remind people of the need of sustainable development.
B.To suggest ways of ensuring sustainable food production.
C.To advance new criteria for measuring farming progress.
D.To urge people to rethink what sustainable agriculture is.

The market investigation is indispensable to sales promotion. They are as closely related as the lips and teeth, so to speak. What you produce is for sale on the market. It would be impossible to succeed in selling a product without first investigating the market.
In the international market, goods on sale coming from different countries and suppliers are always facing keen competition. Under such circumstances, they will try everything possible to familiarize themselves with the market conditions. In making investigations, we ought to get information about what similar items the competitors are offering on the market, what prices they are quoting(报价), what features their products have, who are their regular customers, etc. Then, how can we obtain such information? There are many channels that we can make use of in doing this sort of work. The commercial counselor's offices of our embassies stationed abroad can help us in making market investigations. Nowadays, our import and export corporations send their trade groups abroad every now and then. One of their purposes is to make market surveys on the spot.
Certainly, face-to-face talks with foreign businessmen are also important channels to get market information. The Chinese Export Commodities Fairs and some other fairs of similar nature as well as visits of foreign businessmen provide us with such opportunities. Of course, there are some other ways of making market investigations.
In making market investigations, one should ______.

A.get enough information concerned B.advertise his products
C.produce high quality goods D.none of the above

The word "indispensable" in the first line means ______.

A.impossible B.necessary
C.advisable D.available

Which of the following statements is NOT true?

A.The relationship between market investigation and sales promotion is just as that of the lips and
teeth.
B.It is impossible to succeed in selling a product without market investigation.
C.There are various ways of making market investigation.
D.Production goes before market investigation.

All the following are channels to get market information except ________.

A.to have commercial counsellor' s office of our embassies stationed abroad
B.to promote the quality of our own products
C.to send trade groups abroad every now and then
D.to have face-to-face talks with foreign businessmen

Baekeland and Hartmann report that the “short sleepers” had been more or less average in their sleep needs until the men were in their teens. But at about age 15 or so, the men voluntarily began cutting down their nightly sleep time because of pressures from school, work, and other activities. These men tended to view their nightly periods of unconsciousness as bothersome interruptions in their daily routines.
   In general, these “short sleeps” appeared ambitious, active, energetic, cheerful, conformist(不动摇) in their opinions, and very sure about their career choices. They often held several jobs at once, or workers full-or part-time while going to school. And many of them had a strong urge to appear “normal” or “acceptable” to their friends and associates.
  When asked to recall their dreams, the “short sleepers” did poorly. More than this, they seemed to prefer not remembering. In similar fashion, their usual way of dealing with psychological problems was to deny that the problem existed, and then to keep busy in the hope that the trouble would go away.
  The sleep patterns of the “short sleepers” were similar to, but less extreme than, sleep patterns shown by many mental patients categorized as manic(疯人).
  The “long sleepers” were quite different indeed. Baekeland and Hartmann report that these young men had been lengthy sleeps since childhood. They seemed to enjoy their sleep, protected it, and were quite concerned when they were occasionally robbed of their desired 9 hours of nightly bed rest. They tended to recall their dreams much better than did the “short sleepers.”
  Many of the “long sleepers” were shy, anxious, introverted (内向), inhibited (压抑), passive, mildly depressed, and unsure of themselves (particularly in social situations). Several openly states that sleep was an escape from their daily problems.
According to the report,______.

A.many short sleepers need less sleep by nature
B.many short sleepers are forced to reduce their nightly sleep time because they are busy
with their work
C.long sleepers sleep a longer period of time during the day
D.many long sleepers preserve their sleeping habit formed during their childhood

Many “short sleepers” are likely to hold the view that _____.

A.sleep is a withdrawal from the reality
B.sleep interferes with their sound judgment
C.sleep is the least expensive item on their routine program
D.sleep is the best way to deal with psychological troubles

It is stated in the third paragraph that short sleepers _____.

A.are ideally vigorous even under the pressures of life
B.often neglect the consequences of inadequate sleep
C.do not know how to relax properly
D.are more unlikely to run into mental problems

When sometimes they cannot enjoy adequate sleep, the long sleepers might ____.

A.appear disturbed B.become energetic
C.feel dissatisfied D.be extremely depressed

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