1 . Eating too much fatty food, exercising too little and smoking can raise your future risk of heart disease. But there is another factor that can cause your heart problems more immediately：the air you breathe.
Previous studies have linked high exposure (暴露) to environmental pollution to an increased risk of heart problems，but two analyses now show that poor air quality can lead to heart attack or stroke (中风) within as little as a few hours after exposure. In one review of the research, scientists found that people exposed to high levels of pollutants (污染物) were up to 5% more likely to suffer a heart attack within days of exposure than those with lower exposure. A separate study of stroke patients showed that even air that the U. S. Environmental Protection Agency (EPA)considers to be of “moderate” (良好) quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12 to 14 hours of exposure.
The authors of both studies stress that these risks are relatively small for healthy people and certainly modest compared with other risk factors such as smoking and high blood pressure. However, it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices. So stricter regulation by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.
1. The text mainly discusses the relationship between ________.| A．heart problems and air quality |
| B．heart problems and exercising |
| C．heart problems and smoking |
| D．heart problems and fatty food |
| A．relatively high | B．extremely low |
| C．relatively low | D．extremely high |
| A．Eating fatty food has immediate effects on your heart. |
| B．The EPA conducted many studies on air quality. |
| C．Moderate air quality is more harmful than smoking. |
| D．Stricter regulations on pollutants should be made. |
| A．inform | B．persuade |
| C．describe | D．entertain |
2 . Ask someone what they have done to help the environment recently and they will almost certainly mention recycling. Recycling in the home is very important of course. However, being forced to recycle often means we already have more material than we need. We are dealing with the results of that over-consumption in the greenest way possible, but it would be far better if we did not bring so much material home in the first place.
The total amount of packaging increased by 12% between 1999 and 2005. It now makes up a third of a typical household’s waste in the UK. In many supermarkets nowadays food items are packaged twice with plastic and cardboard.
Too much packaging is doing serious damage to the environment. The UK, for example, is running out of it for carrying this unnecessary waste. If such packaging is burnt, it gives off greenhouse gases which go on to cause the greenhouse effect. Recycling helps, but the process itself uses energy. The solution is not to produce such items in the first place. Food waste is a serious problem, too. Too many supermarkets encourage customers to buy more than they need. However, a few of them are coming round to the idea that this cannot continue, encouraging customers to reuse their plastic bags, for example.
But this is not just about supermarkets. It is about all of us. We have learned to associate packaging with quality. We have learned to think that something unpackaged is of poor quality. This is especially true of food. But it also applies to a wide range of consumer products, which often have far more packaging than necessary.
There are signs of hope. As more of us recycle, we are beginning to realize just how much unnecessary material we are collecting. We need to face the wastefulness of our consumer culture, but we have a mountain to climb.
1. What does the underlined word “over-consumption” refer to?| A．Using too much packaging. |
| B．Recycling too much waste. |
| C．Making more products than necessary. |
| D．Having more material than is needed. |
| A．the tendency of cutting household waste |
| B．the increase of packaging recycling |
| C．the rapid growth of supermarkets |
| D．the fact of packaging overuse |
| A．Unpackaged products are of bad quality. |
| B．Supermarkets care more about packaging. |
| C．It is improper to judge quality by packaging. |
| D．Other products are better packaged than food. |
| A．Fighting wastefulness is difficult. |
| B．Needless material is mostly recycled. |
| C．People like collecting recyclable waste. |
| D．The author is proud of his consumer culture. |
3 . Deserts are found where there is little rainfall or where rain for a whole year falls in only a few weeks time. Then inches of rain may be enough for many plants to survive if the rain is spread throughout the year. If it falls within one or two months and the rest of the year is dry, those plants may die and a desert may form.
Sand begins as tiny pieces of rock that get smaller and smaller as wind and weather wear them down. Sand dunes (沙丘) are formed as winds move the sand across the desert. Bit by bit, the dunes grow over the years, always moving with the winds and changing the shape. Most of them are only a few feet tall, but they can grow to be several hundred feet high.
There is, however, much more to a desert than sand. In the deserts of the Southwestern United States, cliffs (悬崖) and deep valleys were formed from thick mud that once lay beneath a sea more than millions of years ago. Over the centuries, the water dried up. Wind, sand, rain, heat and cold all wore away at the remaining rocks. The faces of the desert mountains are always changing — very, very slowly — as these forces of nature continue to work on the rock.
Most deserts have a surprising variety of life. There are plants, animals and insects that have adapted to life in the desert. During the heat of the day, a visitor may see very few signs of living things, but as the air begins to cool in the evening, the desert comes to life. As the sun begins to rise again in the sky, the desert once again becomes quiet and lonely.
1. Many plants may survive in deserts when ________.| A．the rain is spread out in a year |
| B．the rain falls only in a few weeks |
| C．there is little rain in a year |
| D．it is dry all the year round |
| A．sand piles up gradually |
| B．there is plenty of rain in a year |
| C．the sea has dried up over the years |
| D．pieces of rock get smaller |
| A．too much sand |
| B．more sand than before |
| C．nothing except sand |
| D．something else besides sand |
| A．there is no rainfall throughout the year |
| B．life exists in rough conditions |
| C．all sand dunes are a few feet high |
| D．rocks are worn away only by wind and heat |
Every summer, thousands of endangered green sea turtles climb onto beaches around the world. Each mother sea turtle produces 100 or more eggs in a hole, and covers the hole with sand before she swims away.
Two months later, the eggs hatch(孵化), and the baby turtles climb out of the sand and swim into the ocean. They don’t reappear until they have grown as large as dinner plates. Until now, no one knows where the baby turtles go or what they do.
“if we don’t know where these little turtles are, we can’t protect them,” says Kim Reich, who helps solve part of the mystery.
Her teacher, Karen Bjorndal, has studied green sea turtles for more than 30 years. Every year, Bjorndal goes to the Bahamas Islands. Many young sea turtles come here to live and eat at the end of their childhood.
These turtles are the only sea turtles that live as plant eaters. In fact, their name may be a result of what they eat. The turtles don’t look green but they do have green fat. Scientists learned that the turtles eat green sea plants, which may turn their fat green.
Between 2002 and 2004, Bjorndal caught 44 green sea turtles in the Bahamas. After testing them, she found something to support the 20-year-old idea: baby green sea turtles eat meat before they turn to a diet of plants. In fact, they eat animals that live in the open ocean.
Scientists still need to find where exactly green sea turtles grow. We now know that baby green sea turtles are out in the open ocean, but the open ocean is a big place.
“It is really a problem,” says Bjorndal. The discovery may help us do a better job of protecting this sea animal.
1. What can we learn from the first two paragraphs?
| A．baby turtles go to the ocean when they are two months old. |
| B．Mother turtles leave the eggs alone after they produce them. |
| C．No one knows when turtles appear on the beach. |
| D．Mother turtles are as large as dinner plates. |
| A．help her teacher | B．prove an idea |
| C．protect turtles | D．become a scientist |
| A．the young live in the Bahamas Islands. |
| B．The young eat meat before turning to a diet of plants |
| C．They live in the open ocean for a lifelong time |
| D．They are the only sea turtles that live as plant eaters. |
| A．Finding out where young turtles grow. |
| B．Protecting this endangered sea animal. |
| C．Changing young turtles’ eating habits. |
| D．Living in the open ocean. |
A farmer, Mr. Tan, said that the storm began early in the morning and lasted for over an hour. “I was eating with my wife and children,” he said, “When we heard a loud noise. A few minutes later our house fell down on top of us. We tried our best to climb out but then I saw that one of my children was missing. I went back inside and found him, safe but very frightened.”
Mrs. Woo Mei Fong said that her husband had just left for work when she felt that her house was moving. She ran outside at once with her children. “There was no time to take anything,” she said, “A few minutes later, the roof came down.”
Soldiers helped to take people out of the flooded area and the welfare department (福利机构) brought them food, clothes and shelter.
1. How many homes altogether were damaged in the storm?
| A．Fourteen | B．Twenty-one |
| C．Twenty-nine. | D．Thirty-six |
| A．her husband knew there would be a storm |
| B．they were all outside the house when the storm became worse |
| C．she felt the house was moving |
| D．the welfare department helped her |
| A．something to eat | B．something to wear |
| C．somewhere to study | D．somewhere to stay |
| A．A Terrible Storm | B．A Lucky Woman |
| C．Good Soldiers | D．Clever People |
The idea that bottled water is safer for humans may not be true. The Natural Resources Defense Council of America said, “There is no promise that because water comes out of a bottle, it is cleaner or safer than water from the tap.” Another New York City-based action group added that some bottled water is “really just tap water in a bottle—sometimes more clean, sometimes not.”
It is not proven that bottled water is better than tap water. Nick Reeves from the Chartered Institution of Water and Environmental Management said, “The high mineral content (含量) of some bottled water makes them not good for feeding babies and young children.” Also, most bottled water doesn’t have fluoride (氟化物), which can make teeth stronger. Kids are drinking more bottled water and less fluoridated tap water, and some say that’s behind the recent rise in bad teeth.
Storing is another problem. Placed near heat, the plastic bottles can produce bad chemicals (化学物质) into the water.
According to the Environmental Protection Agency, some 2.7 million tons of plastic are used worldwide to bottle water each year. The plastic can take between 400 and 1,000 years to break down.
In terms of energy use, plastic bottles are also not cheap. One report said that if water and soft drink bottlers had used 10 percent recycled materials in their plastic bottles, they would have saved about 72 million gallons of gas.
So, if you are worried about the effect of bottled water on the Earth, you can take the following steps.
● Drink from your tap. Unless your government warns against this, it should be fine.
● Get a container (容器). Carry your tap water in a steel or a lined drinking container, and clean it between uses.
● Keep it cool. Don’t drink from a bottle that has been sitting in the sun, don’t store it near chemicals, and don’t reuse plastic bottles.
● Choose glass containers over plastic if possible. When finished, recycle!
1. What is the main idea of the article?
| A．Drinking tap water is the only choice for people. |
| B．Glass containers are better than plastic bottles. |
| C．Plastic bottles are harmful to the environment. |
| D．Bottled water may not be as good as we think. |
| A．They break down in less than 300 years. | B．They can be used for many other things. |
| C．They are a risk to the environment. | D．They are cheap to make. |
| A．no problem for the environment | B．more expensive than tap water |
| C．always safer than tap water | D．better for babies |
| A．There are a lot of problems storing tap water. |
| B．Bottled water can be just tap water in a bottle. |
| C．It may be better for your teeth. |
| D．It may contain fluoride. |
7 . Most of the 20th century has been a development on the Industrial Revolution taken to an extreme: people now own more products than ever before; there are enough unclear weapons to destroy the earth several times over; there is hardly any forest left and pollution has got to the point where we buy water. Within a few years I predict you will be able to buy air. (There once was a time when you didn't need to buy food or shelter either.)
Important developments in the last century are the breaking down of the class structures left over from the Industrial Revolution stage, bringing with it the empowerment of the “common man”： the working day is set by law to only 8 hours a day; everyone has the vote; the media has less obvious government control; people have landed on the moon, sent spacecrafts to Mars and so on. Families have also shrunk drastically (强烈地); the nuclear family came about, and especially in the last half of the 20th century, oneparent families are becoming more common. This shrinking in the size of the family shows the increased independence of people — once upon a time people had to live in large groups to survive.
As humans have “become the gods”， they have realized their individuality and independence and taken their control of the world to an extreme. In many countries the land is almost completely used in the production of food and as living space and they live in small cities which are entirely human constructed, made from materials which are also entirely human constructed (concrete bricks) with hardly any remains of nature. Weeds are poisoned because they are messy; even parks have trees grown in tidy lines; grass is mowed to keep it short and so on. I think the massive drug “problem” troubling people is a result of too much of this influence, humans needing to escape the stark world they have created by entering fantasy worlds.
Over the last 100 years, the 20th century consciousness has spread throughout the world; most of Asia has been thoroughly “Westernized”， and most of the Third World is being overrun by Western ways of doing things and living.
1. What's the author most concerned about?| A．The influence of pollution. |
| B．Strong effects of development. |
| C．Changed positions of humans as gods. |
| D．The process of the Industrial Revolution. |
| A．Objective. | B．Tolerant. |
| C．Vague. | D．Negative. |
| A．Unfair. | B．Illegal. |
| C．Dull. | D．Violent. |
| A．Men's individuality is over controlled. |
| B．People have damaged nature too much. |
| C．Men's independence is partially limited. |
| D．People show concern for nuclear families. |
