These books date back ____ the 15th century.A. at B. onC. to

Millions of hamburgers are eaten by people in every corner of the world every day. Together with hot dogs and Coca-Cola, hamburgers have been the most important American contribution (贡献) to international eating habits. The name "hamburger" has nothing to do with ham (火腿). It is believed that the hamburger was first brought to the United States by Germans from the city of Hamburg some time in the 1850s. From then on the hamburger became a kind of popular American fast food. Now young people in Asia, Europe and South America have learned to eat while on the move; a hamburger in one hand and a soft drink in the other. There have been cries to anger from Italy and Spain about the shortening of the usual lunch break. Instead, young people have discovered a lunch for which they don’ t have to stop at all. However, there are clouds over the hamburger’s world. People who concern about health dislike the high animal fat in the hamburger. They think the time saved seems a high price to pay for poor health. The packages in which hamburgers are usually served are causing serious pollution problems in many large cities. Big hamburger companies are destroying large areas of South American rainforest to produce the cheap meat they need. So, will the hamburger celebrate its next centuryThe writer doesn’t believe that ______. A．packages for hamburgers are polluting many big citiesB．hamburgers will remain popular for the following 100 yearsC．the meat in hamburgers can cause health problemsD．cattle raising leads to the destroying of rainforest

阅读理解。 Life on earth depends on water, and there is no substitute for it. The current assumption is that our basic needs for water-whether for drinking, agriculture, industry or the raising of fish will always have t be met. Given that premise (前提) , there are two basic routes we can go: more equal access to water or better engineering solutions. Looking at the engineering solution first, a lot of my research concentrates on what happens to wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almos entirely driven by the seasonal changes of the river-the pulse of the water. And the fact is that if you buil a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by lack of information. But in the near future, governments will have no excuse for their ignorance. The engineers' ability to control water flows has created new kinds of unpredictability too. Dams in Africa have meant fewer fish, less grazing and less flood- plain (洪泛区) agriculture-none of which were expected. And their average economic life is assumed to be thirty years. Dams don't exist forever, but what will replace them is not clear. The challenge for the future is to find new means of controlling water. Although GM technolog(转基因) will allow us to breed better dry land crops, there is no market for companies to develo crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay fo research on locally appropriate crops in the Third World? 1. What's the main idea of this passage? A. The challenge for the future.B. The engineering solutions to water resource and their limitation.C. The basic means of controlling water.D. The challenge for developing crops. 2. Which of the following statements is NOT true for meeting our basic needs for water? A. Water resource should be used more reasonably.B. More dams should be built in river basins.C. More wetlands should be protected from destruction.D. More dry-land crops could be developed in Africa. 3. The author suggests that governments will have no excuse for their careless ignorance in the futurebecause . A．The ecological destruction will be known to the public by researchers B．The ecological destruction will no longer be a problem in the future C．The future is an information age D．Governments will face greater challenge in the future 4. The last sentence probably implies that _____. A．No one will invest in developing locally appropriate crops in Africa B．Researchers have no interest in developing dry-land crops C．Research on locally appropriate crops in the Third World may be profitable D．There is less water resource in the Third World 5．The author's main purpose in writing this passage is to ________.A．discuss the consequences of water problemsB．warn us of the danger of water crisis（危机）C．analyze the measures of solving water crisisD．stress the importance of water resources

英译汉。The businesses began to take notice Single's Day.A.商人们开始提高警惕了。 B.商家们开始关注双十一了。 C.商店里开始注意单身者了。

According to the passage, which of the following is NOT true？ A．Almost half of the children of two left-handed parents will be left-handed B．At least 84 percent of left-handers are born of two right-handed parents C．One in ten of Americans are left-handed D．In the majority of genetically identical twins, one will be right handed, the other left

Each CPU considered more than 6 billion hands of poker. That ____ more poker than has been played by the entire human race.A. adapts toB. is used toC. amounts to

(阅读理解)(完形填空) Good children must be good students at school. They should work hard at all subjects and do what is given to them __(1)__ time. They should develop the ability to care __(2)__ themselves, to try not to depend too much__(3)__ their parents, to think independently and to work in a planned way. They ought to respect teachers, have a cooperative attitude__(4)__schoolmates and always be ready to help others. At home, good children should be tidy and hard-working. Besides schoolwork they should help their parents with housework and be always ready to show respect and gratitude to their parents whenever their parents do something for them. They should also be very __(5)__ towards their entire family. They__(6)__to please their family with something that __(7)__ them happy and feel good instead of upsetting them with their personal worries. When it is absolutely necessary to talk to their parents about their personal problems, they should talk nicely and calmly,__(8)__ready to take advice from their parents since they are much more __(9)__ in life. If any disagreement occurs, good children should try to iron out (调停) the disagreement by listening to the parents' opinions. They never take it __(10)__granted that they are always in the right. On the contrary, good children learn quickly by listening to others.(本题6.0分)1.(单选题)(单选题)( )(本题1.0分)A. forB. onC. withinD. by

10.The buses,_ were full of people, couldn't go very fast.A.thatB.which

Please tell me the ____ idea of your paper.A. mainB. bigC. highD. good

Why is China’s economic foundation for an elderly society fragile？A..Because of its increasing aging population and its low GDP per capita.B..ecause when China was classed as an aging society, our gross domestic product (GDP) per capita is high.C..Because of its decreasing aging population and its high GD.P per capita.

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