LONDON ( Reuters)-- Ecotourism ( 生态旅游) is causing a lot of damage to wildlife and may be endangering the survival(生存) of the very animals people are flocking to see, according to researchers.
Biologists and conservationists ( 自然环境保护论者) are worried because polar bears, dolphins, penguins and other creatures are getting stressed and losing weight and some are dying.
"Evidence is growing that many animals do not react well to tourists in their backyard,” New Scientist magazine said.
The immediate effects researchers have noticed are changes in behavior, heart rates, or stress hormone levels but they fear it could get much worse and over the long term "could endanger the survival of the very wildlife they want to see".
Although money produced through ecotourism, which has been growing at about 10--30 percent a year, has major benefits for poor countries and people living in rural areas, the Swiss-based World Conservation Union and some governments fear not all projects are audited (审计) and based on environmentally friendly policies, according to the magazine,
"The transmission(传播) of disease to wildlife, or small changes to wildlife health through disturbance of daily life or increased stress levels, while not obvious to the casual observer, may translate to lower survival and breeding ,"said Philip Seddon, of the University of Otago in Dunedin, New Zealand.
Scientists have noticed that bottleneck dolphins along the northeastern coast of New Zealand become nervously excited when tourist boats arrive. Similar changes in behavior have been observed in polar bears and yellow-eyed penguins in areas visited by ecotourists are producing smaller babies.
Conservationists are now calling for more research into the effect of ecotourism on animals and say the industry must be developed carefully. They also want studies done before new ecotourism projects are started.
“The animals’ welfare should be very important because without them there will be no ecotourism,”said Rochelle Constantine of the University of Auckland in New Zealand.
72. What's the text mainly about?
A. Many animals are dying because of lack of money.
B. There will be no ecotourism without animals.
C. Ecotourism could endanger the survival of the wildlife people want to see.
D. More research should be done on ecotourism.
73. We may learn from the text that __
A. ecotourism must be developed properly
B. polar bears are losing weight without enough food
C. all the poor countries have stopped ecotourism
D. money produced through ecotourism should be spent on wildlife
74. Which of the following is NOT mentioned in the text?
A. Many animals do not react well in their backyard..
B. Polar bears in areas visited by ecotourists are producing smaller babies.
C. Ecotourism has been growing at about 10--30 percent a year.
D. Studies should be done before new ecotourism projects are started.
75. What Rochelle Constantine said in the last paragraph implies that __
A. if people want to get high income, they must develop ecotourism
B. animals have rights to live their own life
C. animals are people’s good friends
D. people should take good care of wildlife
I was with a group of businessmen, and we were dealing with a question—What is a good person?
At a certain point during the discussion, one of the students—a young man of about thirty—described an event that happened at Christmas. He and his five-year-old son were decorating the Christmas tree, and a little boy came to the front door begging. If you ever visit Mexico, you will see that the people there take begging as nothing to get upset about and nothing to get embarrassed by.
So, this little boy came to the door, a boy about the same age as my student’s son. The father and the son went to the front door, and the father went back with his five-year-old son and said to him, “Give him one of your toys.” At the words, the little boy quickly picked up some toy, and his father said to him, “No, no－give him your favorite toy.”
And the little boy, like a little tiger, said, “No way!” He cried; he refused. But the father, like a big tiger in a way, insisted gently, “No, you must give him one of your favorite toys.”
And finally the boy, with his head down, picked up a toy he had just gotten. The father waited in the living room, and the boy walked to the front door with the toy in his hand. The father waited and waited.
What do you think happened?
After a couple of minutes, his son came running back into the living room, his face radiant (喜气洋洋). “Daddy,” he said, “can I do that again?”
I think I have got the answer to the question.From the passage, we can learn that in Mexico ________.
| A．begging is looked down upon |
| B．begging is considered as a normal part of life |
| C．visitors all over the world treat beggars kindly |
| D．few people are living a poor life |
The sentence “can I do that again?” showed that the boy ________.
| A．got pleasure by helping the little beggar |
| B．wanted to please his father |
| C．began to like the little beggar |
| D．wanted to be the little beggar’s friend |
According to the writer, being a good person means ________.
| A．having the courage to correct his/her mistakes |
| B．being friendly to beggars |
| C．being ready to give |
| D．being able to teach children to tell right from wrong |
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Do you constantly use the computer, whether for learning or entertainment? Computers give off radiation(辐射) that is bad for your health, but here are some ways to protect yourself from computer radiation.
__1___Green tea can be absorbed by the body easily into a form of vitamin A, which helps reduce radiation.__2__
It is advisable to attach a radiation filter plate(辐射过滤板)in front of your computer’s screen. Make sure to avoid putting any mental substances near your computer as these may have reflected some of the electromagnetic waves that are harmful to your health. __3__ The brighter the screen the higher the radiation there will be and vice versa.
You can also put some radiation-absorbing plants such as several cacti near your computer to prevent radiation.
Make sure you do a skincare protection before sitting in front of the computer .
___4__Wash your face soon after using the computer in order to reduce 70% of the radiation.
__ 5___ Old computer in general, has one to two times more radiation released than the new one within the same distance.
| A．And adjust the brightness of your computer screen. |
| B．Apply a layer of facial mask to protect yourself. |
| C．And adjust the sound level on your computer. |
| D．The most efficient way is by drinking some coffee regularly. |
E.The simple way is by drinking 2 or 3 cups of green tea every day.
F.If possible, purchase a new computer instead of using an old model computer.
G.It also helps keep our eyes see things clearly in the dark by improving the visual ability.
The idea of light pollution has developed with the increase of lights in cities. In many areas, this light makes it difficult or impossible to observe stars and planets in the night sky.
There are a number of reasons why light pollution is important. One has become clear at the Mount Wilson Observatory near Los Angeles, California. Today, light from Los Angeles makes the night sky above Mount Wilson very bright. It is no longer an important reasearch center because of light pollution.
Light pollution threatens to reduce the scientific value of research telescoples in other important observatories. They include Lick Observatory near San Jose, California and Yerkes Observatory near Chicago, Illionis.
Light pollution is the result of wasted energy. Bright light that shines into the sky is not being used to provide light where it is needed on Earth. Poorly designed lighting causes a great deal of light pollution. Lights that are brighter than necessary also cause light pollution.
Most people in America are surprised to find out that they are able to see our own galaxy(星系)，the Milky Way, with their own eyes. But about threefourths of Americans cannot see the Miky Way because of manmade light.
Objects in the night sky are resources that provide everyone with wonder. But light pollution threatens to prevent those wonderful sights from being seen.Light pollution usually occurs________.
| A．in cities | B．in the country |
| C．in wild areas | D．in developing countries |
Which of the following is TRUE according to the passage?
| A．Mount Wilson Observatory is the most important one in America. |
| B．Light pollution affects observatories only. |
| C．In the dark night people can observe the sky clearly. |
| D．Astronomers can observe the stars clearly by the lights of the cities. |
The victims affected by the light pollution are________.
| A．children | B．grownups | C．students | D．observatories |
The tea gardens in Sri Lanka are actually large estates(种植园). The best tea usually comes from plants grown on high grounds, the cool hilltops with rows and rows of tea plants. The plants are about one metre apart. The plant is often pruned so that it remains only 60 to 90 centimetres high. Pruning is important because it encourages the growth of tender hoots, or young leaves. It is from these shoots that the best in got.
Practically all the tea pickers are women. The estates like to employ women pickers because they are more careful. Their thin fingers can easily remove the twin leaves and new shoots from the plant, which are the parts used for processing(加工)tea. The pickers carry large baskets into which they throw their pickings. A skilled worker can harvest between 9 to 14 kilogrammes of tea leaves a day. Usually new shoots can be picked from the plants about every ten or fifteen days.
Processing tea shoots into the familiar dry tea leaves requires great care and skill. There are various methods of processing depending on the type of tea required. For black tea, the young green leaves are first spread out on shelves to dry. This process removes much of its water and the leaves become soft. After this, the leaves are passed through heavy rollers. This operation will press the leaves for juices which give the tea both its colour and taste. Then the leaves are spread out on floors and left to ferment(发酵)under wet conditions. Fermentation develops the rich taste of black tea. The fermented leaves are then dried with a hotair blower until they become rolledup black leaves. The final step is to sort and grade them before the black tea is ready for sale to countries all over the world.In the first paragraph, the word“pruning”means______.
| A．regular cutting of the plants. | B．frequent watering |
| C．regular use of chemicals | D．growing the plants high in the mountain |
One of the reasons why women are employed to do the picking is that________.
| A．they work harder than men do in picking |
| B．they can throw their picking more easily into the baskets |
| C．their fingers fit them better for the job |
| D．they can move easily find the twin leaves |
How many processing steps are mentioned in the last paragraph?
| A．Three. | B．Four. | C．Five. | D．Six. |
What's the writer's purpose in writing the passage?
| A．To introduce various methods of tea processing. |
| B．To persuade readers to buy tea from Sri Lanka. |
| C．To tell a story that had happened in the tea gardens. |
| D．To inform readers of tea growing, picking and processing. |
Honey(蜂蜜)from the African forest is not only a kind of natural sugar, it is also delicious. Most people, and many animals, like eating it. However, the only way for them to get that honey is to find a wild bees' nest(巢)and take the honey from it. Often, these nests are high up in trees, and it is difficult to find them. In parts of Africa, though, people and animals looking for honey have a strange and unexpected helper一a little bird called a honey guide.
The honey guide does not actually like honey, but it does like the wax (蜂蜡) in the beehives (蜂房). The little bird cannot reach this wax, which is deep inside the bees’ nest. So, when it finds a suitable nest, it looks for someone to help it. The honey guide gives a loud cry that attracts the attention of both passing animals and people. Once it has their attention, it flies through the forest, waiting from time to time for the curious animal or person as it leads them to the nest. When they finally arrive at the nest, the follower reaches in to get at the delicious honey as the bird patiently waits and watches. Some of the honey, and the wax, always falls to the ground, and this is when the honey guide takes its share.
Scientists do not know why the honey guide likes eating the wax, but it is very determined in its efforts to get it. The birds seem to be able to smell wax from a long distance away. They will quickly arrive whenever a beekeeper is taking honey from his beehives, and will even enter churches when beeswax candles are being lit.Why is it difficult to find a wild bees' nest?
| A．It's small in size. | B．It's hard to recognize. |
| C．It's covered with wax. | D．It's hidden in trees. |
What do the words "the follower" in Paragraph 2 refer to?
| A．A bee. | B．A bird. | C．A beekeeper. | D．A honey seeker. |
The honey guide is special in the way____________。
| A．it gets its food | B．it goes to church |
| C．it sings in the forest | D．it reaches into bees' nests |
What can be the best title for the text?
| A．Wild Bees | B．Wax and Honey |
| C．Honey-Lover's Helper | D．Beekeeping in Africa |
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