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A．they were so dependent on potatoes that they refused to eat anything else. B．they were forced to leave their homeland and move to America. C．the weather conditions in Ireland were not suitable for growing potatoes. D．the potato harvest was bad.

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Hundreds of thousands of peasants pour into the city to try their (运气) every year.

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f you travel by air across the center of Africa or South America, you fly over forests for thousands of kilometers. 如果你坐飞机旅行穿越非洲中部或者南美洲，你就飞过了上万公里的森林。These great forests are the oceans of trees. There are thousands and thousands of different kinds of

plants and animals. However, the world's forests are getting smaller all the time. We are cutting down the trees because we need wood, and we need more farmland. Some people say that there will not be any forests like these in 20 or 30 years. What will happen if they disappear？ If we cut down our forests, a lot of plants and animals will disappear from the world. In a lot of places the new farmland will soon look like the old deserts. Crops will not grow there. It will not rain very often, and the weather will get very hot. Perhaps the climate of the world will change. This will be dangerous for everyone in the world. That is why we must take care of our forests. (1)、The passage mainly tells us about the importance of taking care of plants. A：T B：F (2)、Forests are homes for different kinds of animals. A：T B：F (3)、The need for more wood and more land help to protect our forests. A：T B：F (4)、We'll have more and greater forestsn in 20 or 30 years in some people's view. A：T B：F (5)、The writer thinks it necessary to protect the forests. A：T B：F

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Thousands of Irish people starved during the"Potato Famine"because

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听力原文：Which of the following has NOT been mentioned as the job that thousands of Ph．Ds are now doing？

(36) A．High school teachers. B．Taxi drivers. C．Waiters. D．Fruit sellers,

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From the health point of view we are living in a marvellous age. We are immunized from birth against many of the most dangerous diseases. A large number of once fatal illnesses can now be cured by modem drugs and surgery. It is almost certain that one day remedies will be found for the most stubborn remaining diseases. The expectation of life has increased enormously. But though the possibility of living a long and happy life is greater than ever before, every day we witness the incredible slaughter of men, women and children on the toads. Man versus the motor-car ! It is a never-ending battle which man is losing. Thousands of people the world over are killed or horribly killed each year and we are quietly sitting back and letting it happen.

It has been rightly said that when a man is sitting behind a steering wheel, his car becomes the extension of his personality. There is no doubt that the motor-car often brings out a man’s very worst qualities. People who are normally quiet and pleasant may become unrecognizable when they are behind a steering-wheel. They swear, they are ill-mannered and aggressive, wilful as two-year-olds and utterly selfish. All their hidden frustrations, disappointments and jealousies seem to be brought to the surface by the act of driving. The surprising thing is that society smiles so benignly on the motorist and seems to condone his behaviour. Everything is done for his convenience. Cities are allowed to become almost uninhabitable because of heavy traffic; towns are made ugly by huge car parks the countryside is desecrated by road networks; and the mass annual slaughter becomes nothing more than a statistic, to be conveniently forgotten. It is high time a world code were created to reduce this senseless waste of human life. With regard to driving the laws of some countries are notoriously lax and even the strictest are not strict enough. A code which was universally accepted could only have a dramatically beneficial effect on the accident rate. Here are a few examples of some of the things that might be done. The driving test should be standardized and made far more difficult than it is; all the drivers should be made to take a test every three years or so; the age at which young people are allowed to drive any vehicle should be raised to at least 21; all vehicles should be put through stringent annual tests for safety. Even the smallest amount of alcohol in the blood can impair a person’s driving ability. Present drinking and driving laws (where they exist) should be made much stricter. Maximum and minimum speed limits should be imposed on all roads. Governments should lay down safety specifications for manufacturers, as has been done in the USA. All advertising stressing power and performance should be banned. These measures may sound inordinately harsh. But surely nothing should be considered as too severe if it results in reducing the annual toll of human life. After all, the world is for human beings, not motor-cars. The attitude of the author is ______. A．ironical B．critical C．appealing D．militant

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Throughout history, people have been interested in knowing how language first began, but no one knows exactly where or how this happened. However, we do know a lot about languages, the languages of today and also the languages of earlier times. There are probably about three thousand languages in the world today. Chinese is the language with the most speakers. English, Russian and Spanish are also spoken by millions of people. On the other hand, some languages in the world have less than one hundred speakers.

There are several important families of languages in the world. For example, most of the languages of Europe are in one large family called Indo-European. The original (最初的) language of this family was spoken about 4,500 years ago. Many of the present languages of Europe and India are modern forms of the language of 4,500 yeas ago. Languages are always changing. The English of today is very different from the English of 500 years ago. Some even die out completely. About 1, 000 years ago English was a little-known relative of German spoken on one of the borders of Europe. If a language has a large number of speakers or if it is very old, there may be differences in the way it is spoken in different areas. That is, the language may have several dialects. Chinese is a good example of dialect differences. Chinese has been spoken for thousands of years by millions of speakers. Their differences between the dialects of Chinese are so great that speakers of Chinese from some parts of China cannot understand speakers from other parts. The first paragraph mainly tells us that ______. A．most people in the world speak Chinese B．there are thousands of languages in the world today C．man has much knowledge about languages D．some people know several languages

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The company was reportedly going bankrupt and this would result in the（）of thousands of employees.

A.layoff B.setout C.layout D.setoff

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He redesigned the process, _______ saving thecompany thousands of dollars. （）

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For thousands of years, people have known that the...

For thousands of years, people have known that the best way to understand a concept is to explain it to someone else. "While we teach, we learn," said Roman philosopher Seneca. Now scientists are bringing this ancient wisdom up-to-date. They&39;re documenting why teaching is such a fruitful way to learn, and designing innovative ways for young people to engage in instruction. Researchers have found that students who sign up to tutor others work harder to understand the material, recall it more accurately and apply it more effectively. Student teachers score higher on tests than pupils who&39;re learning only for their own sake. But how can children, still learning themselves, teach others？ One answer: They can tutor younger kids. Some studies have found that first-born children are more intelligent than their later-born siblings (兄弟姐妹). This suggests their higher IQs result from the time they spend teaching their siblings. Now educators are experimenting with ways to apply this model to academic subjects. They engage college undergraduates to teach computer science to high school students, who in turn instruct middle school students on the topic. But the most cutting-edge tool under development is the "teachable agent"—a computerized character who learns, tries, makes mistakes and asks questions just like a real-world pupil. Computer scientists have created an animated (动画的) figure called Betty&39;s Brain, who has been "taught" about environmental science by hundreds of middle school students. Student teachers are motivated to help Betty master certain materials. While preparing to teach, they organize their knowledge and improve their own understanding. And as they explain the information to it, they identify problems in their own thinking. Feedback from the teachable agents further enhances the tutors&39; learning. The agents&39; questions compel student tutors to think and explain the materials in different ways, and watching the agent solve problems allows them to see their knowledge put into action. Above all, it&39;s the emotions one experiences in teaching that facilitate learning. Student tutors feel upset when their teachable agents fail, but happy when these virtual pupils succeed as they derive pride and satisfaction from someone else&39;s accomplishment. 1. What are researchers rediscovering through their studies？ A.Seneca&39;s thinking is still applicable today. B.Better learners will become better teachers. C.Human intelligence tends to grow with age. D.Philosophical thinking improves instruction. A、Seneca&39;s thinking is still applicable today. B、Better learners will become better teachers. C、Human intelligence tends to grow with age. D、Philosophical thinking improves instruction.

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What do the thousands of light beams measure？

A．The focusing accuracy of the lens of the eye. B．Eye color and vision. C．Where the beams travel. D．The reflection of the retina.

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