Human activity has influenced not only the environment we live in, but also some parts of the world no one has been to. Increased levels of carbon dioxide in the atmosphere produced by forest burning, 题目和参考答案——青夏教育精英家教网—

题目内容

Human activity has influenced not only the environment we live in, but also some parts of the world no one has been to. Increased levels of carbon dioxide (二氧化碳) in the atmosphere produced by forest burning, automobiles and industry has led to rapid changes in untouched areas of South America's Amazonian rainforest.

The latest results of a study carried out by US and Brazilian scientists show that carbon dioxide levels have risen by 30 per cent in the last 200 years. The gas is used in photosynthesis (光合作用), the

process by which organisms (生物体)change sunlight into energy.

The higher level of carbon dioxide is causing some trees in the Amazonian rainforest to grow faster and die sooner. As a result, certain plants and animals could disappear.

"Tropical rainforests are famous for having lots of special species (种类)," said William Laurance, leader of the research team. "If you change the tree types, then other species particularly animals that feed on the trees, will change as well."

With certain trees growing faster and dying sooner, the plants that live in their shadows are also threatened. Alexandre Oliveira, another member of the research team, explained, "Large, fast growing trees are winning at the expense of smaller trees that live lower down."

The team has spent the last 20 years following the life patterns (模式) of 14,000 trees spread across an area of 190 square kilometers. They have found that the people responsible for the death of the rainforests are not just hunters and those who cut down trees. Something as innocent(清白的) as driving the car to the shops instead of walking can also cause damage.

7. What does harm to our environment according to the passage?

A. Dying animals.B. Human activity.C. Chemical plants.D. Burning houses.

8. The reason for South America's Amazonian rainforest to grow faster and die sooner is________.

A. that levels of carbon dioxide haverisen

B. that people burn plenty of rainforests freely

C. that the gas can change sunlight into energy

D. that tropical weather changes from time to time

9. The passage is most probably________.

A. government news

B. a wild experiment

C. a geography book

D. an experimental report

10. From the passage we can infer that ________.

A. those who go camping in forests shouldn't be responsible

B. innocent people should drive cars into rainforests

C. those who cut down trees will be punished

D. people who cut down trees should plant more trees

BADC

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No one can believe that the over 6,300-kilometer Great Wall might disappear some day. Believe it or not, the Great Wall is being destroyed by people. Less than 20 percent of the Great Wall built in the Ming Dynasty, is still perfect, but about 80 percent is in danger. The Great Wall can be called "great" mostly because of its amazing length. But we should realize that the length was made up of one brick at a time. If we do nothing to save the Great Wall, it will become a series of separate wasteland rather than a historic site.

The Great Wall is actually a series of walls built and rebuilt by different dynasties over the past 2,000 years. It began in the rule of China's first emperor, Qin Shihuang of the Qin Dynasty(221 BC-206 BC), and lasted into the Ming Dynasty. The parts built before the Ming Dynasty have nearly disappeared. People are familiar with sections such as Badaling in Beijing and Jiayuguan Pass in Gansu, because they have been open to tourists for many years. But those sections far away from the public eyes have been almost forgotten.

Few local people knew the 3-metre-high walls made of earth and stones beside them are part of the Great Wall. The lack of knowledge is considered as one of the main reasons behind human.

The bricks on the Great Wall are carried off by countryside people to build their houses, sheep corrals and pigsties. Some were taken away to build roads. Bricks carved with people's names are put away as remembrances. Rubbish is spread over the battlements. The bricks can be sold for 15 yuan per tractor load. Those who destroyed and are destroying the Wall know its name, but are not clear about its cultural meaning. It will take a long time to let them know this. The local farmers not only carried off the body of the Wall but also dug out the entire base.

It is necessary to protect the Great Wall. First of all, the officials should be aware of the importance of the Great Wall. Young Chinese should know more about the nation's great civilization and learn to love it.

64. Why does the writer say the Great Wall might disappear?

A. It is useless from now on.

B. It will be replaced by a new one.

C. Some parts of it are being destroyed.

D. It is too old to be used again.

65. According to the passage, which of the following is TRUE?

A. The Great Wall was completed in the Ming Dynasty.

B. Not all the foreign tourists like the Great Wall.

C. The first part of the Great Wall was built in 221 BC.

D. The Qin Great Wall was protected well.

66. The underlined part "those sections far away from the public eyes" (in Paragraph 2) refers to the parts of the Great Wall _____.

A. that are too difficult to find

B. nobody can watch

C. that are too far to be seen

D. that are not well-known to the public

67. What's the main reason of the Great Wall's being destroyed?

A. The local people are short of culture knowledge.

B. The local people need bricks and stones to build houses.

C. The local people think that the Great Wall is not important.

D. The local people sell the bricks for a living.

Section A (10 points)

Directions: Read the following passage. Complete the diagram by using the information from the passage. WRITE NO MORE THAN 3 WORDS for each answer.

Many students eat their breakfasts on the way to school or in the dinning-room. But some of them don’t really know how to eat well when eating out.

Here is some important advice. The first is to eat less fast food. The most obvious harm of eating too much fast food is weight gaining because of too much fat. Young people and adults are at risk of diseases related to weight.

Too much fast food can drag your body down. French fries, for example, were recently found to contain much more acryl amide(丙烯酰胺) than other food. This may cause cancer. Actually, deep fried food all contains acryl amide. So don’t eat it too often.

Soda is another thing you should watch out for. Cokes and other sodas contain a lot of sugar and can slow down a person’s calcium absorption, so it’s best to drink as little soda as possible.

Food in the dinning-room may not be as tasty as fast food, but it’s actually easier to make healthy choices. Human bodies need variety. You can have a meal that balances lean proteins, vitamins and complex carbohydrates(碳水化合物). In other words, a meal with fish or meat, vegetables and some bread or rice will provide you with most nutrients that the body needs.

Some snacks, on the other hand, will help keep you going until your next big meal. It is natural for teenagers, especially boys, to feel hungry during school time. Don’t forget to take some foods, like whole-grain biscuits or low-fat milk in your school bag.

Title: 71__________

Advice	Food	72.__________	73.__________	Kind
Eat less fast food	French fries and other 74__________	75.__________	Cause weight gaining	Unhealthy food
Eat less fast food	French fries and other 74__________	Acryl amide	76.__________	Unhealthy food
77._________	Sodas	Lots of sugar	Slow down 78__________	Unhealthy food
Eat in dinning-room	Fish or meat, vegetables and some bread or rice	Lean proteins, vitamins and complex carbohydrates	Provide most nutrients that the body needs	79._______
80. __________	Whole-grain biscuits or low-fat milk	Not mentioned	Keep you going until next big meal	Healthy food

A month after Hurricace Katrina, I returned home in New Orleans. There lay my house, reduced to waist-high rains, smelly and dirty.

Before the trip, I’d had my car fixed. When the office employee of the garage was writing up the bill, she noticed my Louisiana license plate. “You from New Orleans?” she asked. I said I was, “No charge.” She said, and firmly shock her head when I reached for my wallet. The next day I went for a haircut, and the same thing happened.

As my wife was studying in Florida, we decided to move there and tried to find a rental house that we could afford while also paying off a mortgage（抵押贷款）on our ruined house. We looked at many places, but none was satisfactory. We’d began to accept that we’d have to live in extremely reduced circumstances for a while, when I got a very curious e-mail from a James Kemmedy in California. He’d read some pieces I’d written about our sufferings for state, the online magazine and wanted to give us (“no conditions attached”) a new house across the lake from New Orleans.

It sounded a good to her return, but I replied, thinking him for his exceptional generosity, then we to go back. Then the University of Florida offered to let him house to me. While he want to England on his one year, paid leave. The rent was rather reasonable. I mentioned the poet’s offer to James Kemdedy, and the next day he sent a check covering our entire rent for eight months.

Throughout this painful experience , the kindness of strangers back my faith in humanity .It’s almost worth losing you wordy possessions to be reminded that people really when given had a channel.

56．The garage employee’s attitude toward the author was that of

A．unconcern B．sympathy

C．doubt D．tolerance

57．What do we know about James Kemnedy?

A．He was a written of an online magazine.

B．He was a poet at the University of Florida

C．He offered the author a new house free of charge.

D．He learned about the author’s sufferings.

58．It can be inferred from the text that

A．the author’s family was in financial difficulty

B．rents were comparatively reasonable despite the disaster

C．houses were difficult to find in the hurricane-stricken area

D．the mortgage on the ruined house was paid off by the bank

59．The author learned from his experience that

A．worldly possessions can be given up when necessary

B．generosity should be encouraged in some cases

C．people benefit from their sad stories

D．human beings are kind after all.

第三部分：写作（共两节，满分35分）

第一节任务型阅读（共10小题；每小题1分）

阅读下列短文，根据所读的内容在文章后的表格中填入恰当的单词。注意表格中的每个空格只填1个单词。

Global warming is one of the major environmental problems we are facing today. Scientists think a further rise in the carbon dioxide levels will make this situation worse. The greenhouse effect causes the earth’s heat to be trapped in the atmosphere, which results in the increase in temperature. This in turn has an effect on various plants and animals. Global warming makes it difficult for some of them to survive.

Ozone depletion(臭氧耗损) means a drop in the quantity of the ozone in the earth’s stratosphere (平流层). The ozone hole in the Antarctic is mainly due to the release of CFCs ( a type of gas). Because of ozone depletion, humans are facing various problems such as the harmful effects of UV rays.

Water pollution is caused when wastes are thrown into water. What’s more, many harmful chemicals are also put into water, which causes the deaths of many wild animals and endangers the health of humans.

The increasing population is causing a loss of natural resources. This is related to various human activities. For example, overfishing has caused many kinds of fishes to die out. Forests are being cleared to meet the rising demand for paper, wood, even for land. Mining(采矿) has led to a further drop in mineral resources. If we used up all the resources, how could our children survive on this planet?

These are some of the current environmental problems we are facing today. Only with an effort from each person, can we hope to save our planet from being destroyed.

Environmental

problem

Cause

Damage

Global

(76)_____-

Increasing carbon

dioxide levels

Making it difficult for

various plants and animals to

(77) ______

(78)______

depletion

Releasing CFCs

Various problems such as the harmful effects of UV rays

Water (79) _____

·Throwing (80)_____

into water

·Adding harmful (81)

_____into water

Endangering wild animals’ lives

Endangering humans’ (82) ______

The loss of

natural(83)____

·Increasing (84) _____

·Various human activi-

ties such as （85）_____, cutting down

forests and mining

Endangering the next generation