As a boy, Sanders was much influenced by books about the sea, but by the age of fifteen he had decided to become a doctor rather than a sailor. His father was a doctor. So he was often with the doctors and got along very well with them. When he was fourteen, he was already hanging around the hospital where he was supposed to be helping to clean the medicine bottles, but was actually trying to listen to the doctors' conversations with patients in the next room. During the war Sanders served in the army as a surgeon . "That was the happiest time of my life. I was dealing with real sufferers and on the whole making a success of my job." In Rhodes he taught the country people simple facts about medicine. He saw himself as a life-saver. He had proved his skill to himself and had a firm belief that he could serve those who lived simply, and were dependent upon him. Thus, while in a position to tell them what to do he could feel he was serving them. After the war, he married and set up a practice deep in the English countryside, working under an old doctor who hated the sight of blood. This gave the younger man plenty of opportunity to go on working as a life-saver. When the war was over, he _ . A) learned from an old doctor because he was popular B) started to hate the sight of blood while working C) served the countrymen under an old doctor who needed someone to help him D) had few chances to be a "life-saver" because he was younger
C
(Question)
As the population of the planet increases, so does the number of homes, businesses, parking lots, schools, airports and roadways. All these structures use electricity and need to be lighted. Humans demand these lights. They want their homes more comfortable and they want their streets safe. The problem is that researchers are finding that all the light is having a negative effect on humans and wildlife as well. Less than 10 years ago I drove to a thinly populated section of my town, lay down in the middle of the road and watched an attractive meteor shower . The area was short of homes, street lights and traffic. If I did that today, I wouldn't be able to see the meteor shower as well. Due to the increase in street lights, I would surely be run over by a car. Nowadays scientists are finding light pollution can be almost as bad as carbon dioxide pollution. If you've ever taken a flight at night, the view is beautiful, but you must remember that all the light you see wastes electricity. The crew of the space shuttles see an even bigger picture of how extensive the wasted electricity is worldwide. One of the saddest parts of light pollution is that most of it is unnecessary and most of the outdoor light that we use is wasted. One only needs to look at a row of street lights to see how much of the light shines upwards and lights the sky; a total waste of electricity. Additionally, somewhere electricity needs to be produced, and the production of electricity creates pollution by releasing greenhouse gases. This affects the air we breathe and our quality of life. Scientists are also studying the effects of light pollution on wildlife. Thousands of birds die each year when they crash into highly lighted buildings, as they become puzzled by the light. It has been long known that tiny baby sea turtles become lost and follow lights on the shore instead of heading towards the sea. Fortunately, light pollution is one of the easiest sources of pollution that can be corrected without a negative effect. Following some... What can be inferred from the text? A) We are almost at a loss how to deal with light pollution. B) Global warming results in light pollution in some way. C) Astronauts can't see clearly in space nowadays. D) Some animals use natural light to direct their movements.
(Answer)
D
Ques: Restoring the quake-hit ecosystems is a question of balancing the interests of the local people and the environment.Rural methane projects can reduce the number of locals taking fire-wood from the mountainsides.The use of straw as food for animals will ensure that vegetation can grow.In Sihai township and Dazhuangke village, in Beijing, they now have a forestry coverage of 85% or more, compared to the 30% they had 15 years ago.Back then, land was used very inefficiently: one person would use 20 mu of forest just for firewood.With those pressures on the ecosystem, no amount of spending on reforestation will succeed.Then the government relocated the population and paid those who remained to tend the forest and provide coal.This reduced the pressures on the ecosystem and it was able to recover naturally. When an ecosystem has not been pushed past certain limits, it is able to recover on its own.Human involvement should only play a minor role, including after an earthquake.This is particularly the case for sandy grasslands, grasslands deserts, the mountains of the south and the northern sides of mountains in the north.In these areas soil remains and the water, light, heat and nutrients needed are available.Less human involvement is even more appropriate in areas with a small population, where it can avoid money being wasted on ineffective efforts, such as creating forests in dry areas. The creation of nature reserves should be a model to allow damaged ecosystems to recover.Funding can start at the national level; centrally-funded nature reserves can enforce environmental protection laws and help to promote the local economy.This will solve the problems of reserves being run to make money.When national reserves are funded, local governments will be able to adopt the same model and provide the funds for nature reserves from their own budgets.The first project should be established in nature reserves hit by the quake; these can then become models for other areas. The forestry coverage in rural Beijing has increased greatly because _ . A) pressures on land were reduced B) a large amount of coal is provided C) no people live in that area D) locals take good care of the forest
Ans: A
Research on the human brain has been attracting the attention of more and more scientists in recent years. One of the latest research topics is how to change the human brain or combine the computer and the human brain, i.e., to transplant a chip into human brain. This innovation may make everyone's dream come true. If we compare a human brain to a hard disc, what the scientists do is to enlarge the capacity of the hard disc. There are some difficulties in such transplant experiments, but scientists never give up. Experiments were started on animals. In 1996, a transplant experiment performed at the Defense and Military Physiology Research Institute in the U.S. turned a bear into a dolphin. The dolphin was named Ted, and the bear was named Tallin. Using the most advanced technology, deep and detailed studies were made of the swimming action memory area in Ted's brain by the scientists. They got a lot of useful information. The information was saved into a button-sized chip, which was then transplanted into the action memory area in Tallin's brain. The information saved on the chip was released by means of electric power. Recently, another memory transplant was performed at the Motor Nerve Research Institute of the University of California. The transplant was performed from a dog named "Genius" to a dog named "Idiot". "Genius" could understand and follow up to 100 gestures and orders made by its master. It was a real genius. "Idiot" was the younger brother of "Genius". It had no contact with people at all since its birth. It became an animal with nothing in its brain, without any memory. _ When the two dogs woke up, "Idiot" had all the abilities "Genius" possessed. It could follow every gesture and order given by its master. But "Genius" gave no response to its master, and in fact did not recognize him at all. It could be inferred from the passage that in the future _ . A) human beings will be healthier B) animals will be more tender C) human beings may get knowledge more quickly D) animals will cause more damage to the environment
C