Because of the development of agriculture, the area of land affected by sand has gradually increased. During the 1950s and 1960s the land affected by sand expanded on average into 1,600 square kilometers per year. By the 1990s, the area had reached 2,500 square kilometers per year.  This kind of situation is particularly serious in many regions upwind(逆風(fēng)的) from Beijing. Fengning City in Hebei Province and Duolun City in Inner Mongolia lie to the north of Beijing, and in the last 50 years the population of these two cities has grown by 2 to 3 times. In order to obtain more resources, the inhabitants have been busy with  heavy farming, tree-cutting and keeping animals. The result is that the soil which has sustained damage, and the sand layer below the earth is now exposed on the ground and the ground is rapidly being controlled by the spread of sand.
China has already noticed this problem, and has take measures to save the land. Nowadays, some land used for farming has returned to forestland and grassland. The Chinese government announced that it would invest more than RMB 600,000,000 to control Beijing’s sandstorms in the coming years. Only by decreasing the damage caused by man and restoring the natural environment will it be possible to well control the sources of the sand and dust. We hope in the not-distant future, we will solve the problem successfully and effectively.  
63. Compared with 50s and 60s, the land affected by sand increased by _____ square kilometers by the 1990s.
A. 1,600        B. 2,500         C. 900          D. 1,100         
64. Which of the following is NOT the cause of the damaged land?                      
A.People use the resources too much.
B.People keep animals which need more grain.
C.People prepare too much land to grow crops.
D.People cut a lot of forests and raise animals.
65. The major measure that Chinese government has taken is _____.                                                          
A.controlling the growth of the population     
B. making better use of natural resources
C. killing fewer animals and cutting fewer trees   
D. returning some land to forestland and grassland
66.According to the passage, it can be inferred that _____ was the major factor of the environmental damage.
A. man       B. animal      C. nature    D. desert 
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


For years , many people would not believe that smoke could attack so many parts of the body in so many ways . Study shows , however , that tobacco isn’t one single thing .  At least 60% of it is gas—20 different kinds of gas . And one of these is the deadly carbon monoxide (CO) (一氧化碳).
In factories , the amount of this gas in the air is measured , and it must be kept under fixed , safe level . But there is 640 times this safe amount in cigarette smoke .
Oxygen is carried through your body by the red blood cells . But this poison gas , CO, will get to the blood cells before the oxygen can . So , if you smoke your blood carries five to ten times more of this deadly gas than is normal . To make up for this , your body must make more red cells .
The oxygen in your blood passes into your tissues(組織). But here again CO makes trouble . It keeps the oxygen from passing into your tissues as fast as it should . Because of this , cigarette country is always about 8000 feet above sea level . Someone who smokes and lives at sea level gets as little oxygen as a nonsmoker at an altitude(高度)of nearly two miles .This happens to everyone who smokes , no matter how old or how young . Anyone who competes in sports can tell you that those who smoke run out of breath more quickly than those who do not .
1.The gas amount in cigarette smoke is______________.
A.640 times higher than the gas safe levels in factories
B.640 times lower than the gas safe levels in factories
C.640 times as much as that in factories
D.a(chǎn)s dangerous as that in factories
2.If you smoke , ______________ .
A.your blood carries more oxygen than is normal
B.your blood carries much more CO than is normal
C.you can have five to ten times of blood than usual
D.your blood will be poisonous
3.Those who smoke______________.
A.a(chǎn)ll live at sea level
B.don’t live at an altitude of two miles
C.breathe as much oxygen as non-smokers
D.only get the same amount of oxygen at the sea level as non-smokers at an altitude of nearly 2 miles
4.Smokers are______________.
A.easily hurt              B.easily excited      C.easily tired         D.healthy

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


PART THREE READING COMPREHENSION(30 points)
Directions: Read the following three passages.Each passage is followed by several questions or unfinished statements.For each of them there are 4 choices marked A,B,C and D.Choose the one that fits best according to the information given in the passage.
Next time you find yourself drenched (濕透) in an unexpected heavy rain, look on the bright side – it will be a memorable experience. While wet weather may make us feel gloomy, it sharpens the memory and improves our recall. But those who feel in a good mood because it’s a sunny day are able to remember less well, according to memory tests carried by Australian researchers.
Professor Joe Forgas, who led the research, said: “It seems strange but a little bit of sadness is a good thing. People performed much better on our memory test when the weather was unpleasant and they wee in a slightly negative mood. On bright sunny days, when they were more likely to be happy, the flunked it.”
The tests were carried out on shoppers at a store in Sydney, where researchers randomly placed ten small objects on the check – out counter. On rainy days, sad music was played in the store. When it was bright and sunny, customers heard cheery music. This was done to further influence them towards negative or positive moods. After shopping, customers were asked how many of the objects they could remember. Their scores were three times higher when the weather was had and they were feeling angry, compared with those tested on sunny days. The results were published in Journal of Experimental Psychology. A report on the findings said: “They point to a growing body of evidence that the way people think, the quality of their judgments and the accuracy of their memory are all significantly influenced by positive and negative moods.”
Professor Forgas said, “We found that weather – inducted negative mood improved memory accuracy. Shoppers in a negative mood showed better memory and higher discrimination ability.”
A worse mood helped to focus people’s attention on their surroundings and led to a more thorough and careful thinking style, while happiness increased confidence and forgetfulness.
Being happy tends to promote a thinking style that is less focused on our surroundings. In a positive mood we are less likely to make more snap (匆忙的) judgments about people we meet. Mild negative mood, in turn, tends to increase attention to our surroundings and produce a more careful, thorough thinking style.
Accurately remembering everyday scenes is a difficult task, yet such memories can be on importance in everyday life. Surprisingly, the influence of mood states on the accuracy of real-life memories is still poorly understood.
56.What’s the major function of Paragraph 1?
A.To attract readers’ interest.     
B.To introduce the theme of the whole passage.
C.To generalize the whole passage.   
D.To describe a memorable experience.
57.The underlined word “flunked” in Paragraph2 may mean “       ”.
A.conducted B.failed       C.passed      D.understood
58.In the research, researchers play different music to         .
A.make customers become sadder or happier
B.help customers choose what they want
C.promote customers to buy more goods
D.get customers to make a quick choice
59.According to Joe Forgas, on sunny days, people         .
A.will make careful judgments on others
B.tend to pay more attention to their surroundings
C.will have more confidence
D.will have a better recall
60.What can we know from the research?
A.Forgetfulness is rather troublesome.
B.It’s important to feel in a good mood.
C.It’s memorable to experience a rainy day.
D.Gloomy days are good for memorizing things.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


III.閱讀理解
The blue tits(山雀) have been inspecting the nest-box again this year. The male is the house-hunter but the female will make the final choice. He lands at the hole and turns his head to expose his white cheeks as a signal to attract the female from where she has been feeding.
Among many birds that nest in holes, the male has a light-coloured patch on its plumage(鳥(niǎo)羽) which acts as signal for drawing the female’s attention to a suitable nesting-place. Unlike the blue tit, the redstart(紅尾鴝) may be only the male that strikingly coloured and the female is not beautiful.
A few years ago I was lucky enough to spot a pair of redstarts in action in a Walsh wood. The male was leading an interested female to holes that he had previously(先前) checked out. He sat at the entrance of each hole and put his head on to show off his white forehead, or his head in to reveal(顯露) his tail.
If the female failed to react to his visual signals, the male sometimes sang for extra effect, while gliding towards her on spread wings and tail. Once the female accepts by following the male through the hole the displays stop, you must be at the right place at the right time to watch them.
36. How do the blue tits choose their nest?
A. They choose their nest together.     
B. The male chooses their nest.
C. The house-hunter chooses their nest.
D. The female chooses their nest.
37. The writer was lucky to see ________.
A. how the male made his tricks
B. how an interested female played with the male happily
C. what the male displayed and won the female
D. that the male tried his best but failed to attract the female
38. You can spot a pair of redstarts in a Walsh wood ________.
A. at any time        B. regularly    C. in April    D. occasionally
39. The writer is probably ________.
A. a bird expert     B. a bird-hunter   C. a bird raiser   D. a scientist

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


Last week’s topic: What’s your opinion about cheating in exams?
Wilson 822 (Fujian): An oath isn’t enough to keep anyone from cheating. Who can tell that they won’t promise something that goes against their will? So I think the punishment is important. Punishments should be serious enough to stop people breaking the oath!
Wang Changling (Anhui): The oath itself makes all test-takers think that others may consider them would-be cheaters, which can hurt their feelings. In my opinion, prevention is better than a punishment. Educators should set good examples for students to follow and be role models for them. Even if only a few educators continue to copy other people’s work and their research papers, surely, students will follow.
Anonymous(匿名的): I support the school’s action against cheating. Although the oath isn’t a duty, it can warn the would-be cheater.
Cathy Cheng: I find it is hard to refuse a friend who wants help in exams. And I think the rule of Maryland University gives the students like me a good excuse to refuse.
Zzq8301: I think it is a promising step toward what we’re talking about when we say “fair play” these days. Cheaters should be stopped because they make it difficult for the honest to succeed.
Freda (Tianjin): I was told by my foreign teacher to write down the oath on the back of my test paper in the same way that was described in the article. It is a rule everyone should obey in a fair game. Whether this method succeeds or fails is up to you. What I want to say is to be true to yourself.
60. The underlined word “oath” in Paragraph 2 may have the same meaning as “_________”.
A. idea                      B. promise          C. plan                      D. opinion
61. It is clear that people mentioned in the text are talking about the rule made by _________.
A. Maryland University                    B. some colleges          
C. the Education Department           D. the government
62. How many people are in fact in favor of the rule?
A. 3                   B. 2                     C. 4                    D. 5
63. Who think teachers should set a good example? 
A. Wilson 822        B. Freda             C. Cathy Cheng   D. Wang Changling

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


If you go to Juliano’s restaurant in San Francisco,you can’t get a cup of coffee or a hot cheese sandwich.All the food in the restaurant is raw,including the pizza and the rice.
Juliano thinks that cooked food makes us sick. “Food is alive,like you and me.When you cook food,you take away some of the vitamins,”he says,Juliano never eats food that is over 50 degrees.His restaurant doesn’t have a stove(火爐) or a microwave(微波爐).But he has lots of clever ideas for making raw food taste great.Instead of heat,Juliano uses water to prepare foood.He puts foods in water to make them soft.For example,he places beans in water for a few days and rice in water for two or four weeks.
Everything at the restaurant is cold,and the pizza and the rice taste good.So do the fruit and vegetable juices made from carrots ,apples,oranges and so on.Juliano’s restaurant doesn’t serve meat,but some people who cat raw food also eat raw meat.Juliano has three friends who ate raw meat.They all got very sick..One of them is still sick.
Juliano eats mostly fruits,vegetables,nuts,rice and beans.He says he feels very healthy. “Raw food gives you lots of energy,”he says,Juliano says he needs only six hours of sleep a night,and he never gets sick..
61.What is the main idea of the passage?
A.A man who eats only raw food.               B.A special restaurant in San Francisco.
C.Raw food is better than cooked food.          D.How to make raw food taste good.
62.How is the food in Juliano’s restaurant prepared?
A.Foods are put into water to make them soft.
B.Foods are cooled in a fridge.
C.Foods are heated on a stove to a certain degree.
D.Foods are boiled and then cooled.
63.What is NOT served in Juliano’s restaurant?
A.Carrot juice.         B.Cold pizza.          C.Raw rice.          D.Hot meat.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


There is a saying “Beauty is in the eye of the beholder.” What one person considers beautiful may not be beautiful to another. When we talk about beauty in people, we often refer to their physical attractiveness. Of course, a beautiful or handsome face is pleasant to look at. But to me beauty is not only something that pleases the eyes.  but also pleases the other senses and the mind. I think true beauty makes you see beyond the lovely sight. It will give you insight (深刻的了解) or realization of something interesting beyond just the outward appearance.
The most memorable “beautiful people” are those who have attractive personalities behind the pretty faces. In one of my previous classes, there were two beautiful girls. Sue and Lin. Both had almost perfect faces and slender(纖細(xì)的) figures. But Lin was used to getting her own way. She felt that her looks could help her get anything she wanted, especially among the boys. Sue, on the other hand, treated her beauty in a matter of-fact way and she was nice to everyone. She was also a member of the debating team. Her personality was mostly accepted by others and it made her a more outstanding beauty than Lin.
Inner beauty is another kind of beauty that attracts people greatly. People who have this kind of beauty have attained(獲得) inner peace. They care about their fellowmen, and try to right the injustices in this world, Two well-known personalities who exemplify this are Nelson Mandela and Mother Theresa.  Mandela is willing to sacrifice his life and freedom to obtain equal rights for the blacks in South Africa. Mother Theresa’s mission is to help the poorest of the world’s poor. This inner beauty makes the world a better place.
60. When we talk about beauty in people, we often refer to ________.
A. the beauty of eyes                             B. something beyond the lovely sight
C. something that pleases our eyes           D. inner beauty
61. What does the underlined sentence “Beauty is in the eye of the beholder” mean?
A. Beauty is a matter of a person’s taste and judgement.
B. Beautiful people are very popular.
C. Everybody hopes for beauty.
D. Beauty attracts people’ s eyes.
62. According to the passage, why did the author think Sue was more beautiful than Lin?
A. Sue had a perfect face                      B. Sue had a good character.
C. Sue became more and more slender.     D. Lin treated her beauty in a matter-of-fact way.
63. What’s the author’s opinion on beauty?
A. Beauty is a perfect face and a slender figure.
B. Beauty is something that pleases the eyes.
C. Beauty is an attractive personality behind the pretty faces.
D. Inner beauty doesn’t attract people.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


Eat your vegetables. Wash your hands. Always say “please" and“thank you". We are full of advice for our children, but when it comes to money, we often have little to say. As a result, our children may grow up with clean hands and good manners, but without any idea how to manage their money.
Here are some basics that will help guide them their entire lives:
Show them the future. If your 13-year-old girl were to save$1,000,invest(投資)it at 8%and add$100 every month,by the time she's 65,she would have$980,983!
Be careful of credit(信用).Credit cards can help you buy necessary things and build a credit history,but they must be used responsibly, which means paying off your debt in time. Explain to your children that when you buy something using a credit card,you can easily end up paying two or three times what you would have paid if you used cash.
Teach patience. Suppose your child wants a new bicycle that costs $150. Rather than paying the cash,give him some regular pocket money and explain that by putting aside,say $15 each week,he will be able to buy it for himself in only ten weeks.
Provide incentive. Tell your children the importance of saving.“For every dollar he or she agrees to save and invest rather than spend, you agree to add another dollar to the pot,”says Cathy Pareto, expert in money planning.
Explain your values. Values and money are deeply intertwined, says Eilleen Gallo, co-author of The Financially Intelligent Parent. When your child demands that you buy something, explain why you really don’t want to buy it.“You might say,‘I'd rather save that money for your education,”,advises Gallo. Every time you spend or don't spend money,you have a chance to share your values.
64. The underlined word“incentive" in paragraph 6 means _____.
A. honor          B. praise         C. excitement      D. encouragement
65. What leads the writer to write this article?
A. Parents want to know how to educate their children.
B. He wants to share his good ideas about money matters.
C. He thinks money management the most important for children.
D. Parents care little about their children's management of money.
66. The writer gives some basics to help __________ in a proper way.
A. parents teach their children how to deal with money 
B. children follow their parents' instructions
C. children manage their money                   
D. parents save their money

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

Tea drinking was common in China for nearly one thousand years before anyone in Europe had ever heard about tea.People in Britain were much slower in finding out what tea was like, mainly because tea was very expensive. It could not be bought in shops and even those people who could afford to have it sent from Holland did so only because it was a fashionable curiosity. Some of them were not sure how to use it. They thought it was a vegetable and tried cooking the leaves. Then they served them mixed with butter and salt. They soon discovered their mistake but many people used to spread the used tea leaves on bread and give them to their children as sandwiches.
Tea remained scarce and very expensive in England until the ships of the East Indian Company began to bring it direct from China early in the seventeenth century. During the next few years so much tea came into the country that the price fell and many people could afford to buy it.
At the same time people on the Continent were becoming more and more fond of tea.Until then tea had been drunk without milk in it, but one day a famous French lady named Madame de Sevigne decided to see what tea tasted like when milk was added.She found it so pleasant that she would never again drink it without milk. Because she was such a great lady her friends thought they must copy everything she did, so they also drank their tea with milk in it. Slowly this habit spread until it reached England and today only very few British drink tea without milk.
At first, tea was usually drunk after dinner in the evening. No one ever thought of drinking tea in the afternoon until a duchess (公爵夫人) found that a cup of tea and a piece of cake at three or four o’clock stopped her getting “a sinking feeling” as she called it. She invited her friends to have this new meal with her and so, tea-time was born.
67.Which of the following is true of the introduction of tea into Britain?
A. The British got expensive tea from India. 
B. Tea reached Britain from Holland.
C.The British were the first people in Europe who drank tea.
D.It was not until the 17th century that the British had tea.
68.Tea became a popular drink in Britain_____________.
A.in eighteenth century           B.in sixteenth century
C.in seventeenth century      D.in the late seventeenth century
69.People in Europe began to drink tea with milk because_____________.
A.it tasted like milk               
B.it tasted more pleasant
C.it became a popular drink
D.Madame de Sevigne was such a lady with great social influence that people tried
to copy the way she drank tea
70.We may infer from the passage that the habit of drinking tea in Britain was mostly
due to the influence of ________.
A.a(chǎn) famous French lady             B.the ancient Chinese
C.the upper social class            D.people in Holland
71.What does the passage mainly talk about?
A.The history of tea drinking in Britain     B.How tea became a popular drink in Britain
C.How the British got the habit of drinking tea   D.How tea-time was born

查看答案和解析>>

同步練習(xí)冊(cè)答案