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Humans are responsible for causing changes in the environment that hurt animals and species(物种). We take up more space on Earth for our homes and cities. We pollute habitats(栖息地). ________1. illegally hunt and kill animals. All of these activities take resources and habitats away ________2.________ plants and animals.
Human activity often changes or destroys the habitats that plants and animals need to survive. 3.________ human populations are growing so fast, animals and plants are disappearing many times faster 4.________ they have in the past 65 million years.
Animals and plants have always had a ________5.________ time surviving. Animals became extinct (灭绝的) in the past for a wide variety of reasons. In some cases, competition for resources among animals led to extinction and in ________6.________ cases, environmental changes caused extinction.
Fortunately, we humans are beginning to realize our mistakes, ________7.________ we could destroy everything on Earth. We must not only use our knowledge and abilities to manage the Earth, but to make the Earth ________8.________ safe and healthy place where all animals and plants——including humans ourselves——can live.
难度: 中等查看答案及解析
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American public education has changed in recent years. One change is that increasing numbers of American parents and teachers are starting independent public schools called charter schools.
In 1991, there were no charter schools in the Unite States. Today, more than 2300 charter schools operate in 34 states and the District of Columbia. 575000 students attend these schools. The students are from 5 years of age through 18 or older.
A charter school is created by groups of parents, teachers and community members. It is similar in some ways to a traditional public school. It receives tax money to operate a number of students. The charter school must prove to local or state governments that its students are learning. These governments provide the school with the agreement, or charter that permits it to operate.
Unlike a traditional public school, however, the charter school does not have to obey most laws governing public schools. Local, state or federal governments cannot tell it what to teach.
Each school can choose its own goals and decide the ways it wants to reach those goals. Class sizes are usually smaller than in many traditional public schools. Many students and parents say teachers in charter schools can be more creative.
However, state education agencies, local education-governing committees and unions often oppose charter schools. They say these schools may receive money badly needed by traditional public schools. Experts say some charter schools are doing well while others are struggling.
Congress provided 200 million dollars for establishing charter schools in the 2006 federal budget. But, often the schools say they lack enough money for programs. Many also lack needed space. District officials say they have provided 14 former school buildings for charter education. Yet charter school supporters say officials should try harder to find more space.
Title ________ ________
难度: 中等查看答案及解析
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Chinese cuisine（菜肴）is widely known and enjoyed in the world. But there is one interesting concept concerning Chinese food which is almost unheard of in the West, and which is becoming increasingly ignored by the youth of the East - the ancient custom of “tonic food.”
Tonic food is food which is consumed to improve one’s well-being, or stave off sickness, particularly at times when one is more likely to fall ill. For instance, it was once the custom for new mothers to eat a sesame-oil hot pot every day for the first month after giving birth. It was believed that this dish would benefit the muscles, reduce pain, improve circulation, stimulate sweating, and warm the body.
In fact, some Western theories of health are similar to the beliefs in Chinese tonic food, although each takes a different path toward the very same goal. Western medicine actually recommends some of the exact same ingredients that make up tonic foods. Sesame oil can provide lots of calories, and chicken meat is particularly high in protein. Any Western doctor should be happy to suggest such a Chinese dish after childbirth.
The elderly, weak, and young can also benefit greatly from tonic foods, especially during the winter. Some foods, such as goat meat and spinach, are seen as “hot,” while others, such as Chinese cabbage and radish, are seen as “cold.” One should be careful not to eat too much of either “hot” or “cold” food. However, how much “hot” or “cold” food one should eat depends on the time of the year, how the food is prepared and what it is prepared with, and the individual’s health.
“Warm” or “cool” tonic foods are strongly recommended. The choices for “warm” and “cool” foods range from simple sea cucumber to the delicacy of bird’s nest soup, depending on the individual’s economic circumstances.
The concept of tonic food is far from losing credibility, either with Westerners or practitioners of modern medicine. For example, up until two years ago, tonic foods were added to the meals served at a renowned hospital.
1.What attitude do the young in the East hold towards “tonic food”?（不超过5个词）(2分)
2.Why are some Western theories of health considered similar to the Chinese beliefs in tonic food? (不超过11个词) （2分）
3. List four factors deciding the amount of tonic food. （不超过20个词）（3分）
4. What does the passage mainly talk about? （不超过6个词）（3分）
难度: 中等查看答案及解析
