Scientists are closely concerned with the structure of buildings and with the quality of building materials． The World health Organization （WHO) observes that the introduction of air conditioning and energy conservation （保护) measures have been accompanied by growing problems of indoor air quality． Some pollutants arise from insulation （隔音) products, some from moving cars, and others from modern housing materials． As many Europeans spend up to 90% of their lives in buildings, the health effects of the indoor climate are very important．
Some construction materials, including fiberboard, insulation foams and certain glues for man-made wood floor boards, for example, give out organic products such as formaldehyde （甲醛)． Heat and humidity increase the release of formaldehyde and the gas seriously harms the eyes． Paint, lacquer, etc． can also release dangerous gas into indoor air．
Construction materials can cause serious damage, especially when they contain asbestos（石棉）． Asbestos is naturally present in rock formations worldwide． It belongs to a family of mineral substances made up of solid, non-combustible（非易燃品） fiber． These properties make asbestos a highly sought-after construction material． As early as 1931, however, public health officers in t
he United Kingdom revealed the connection between breathing in asbestos dust and such diseases as lung cancer．
The land on which a building is sited may also contribute to pollution． Some kinds of granite or similar rocks contain traces of radium． As it breaks down, this naturally radioactive element produces some kind of radioactive gas that goes through tiny cracks in walls, floors and building materials, and makes its way into the building and the rooms． The better the homes are insulated, the more is the dangerous gas in indoor air． The main effect of this dangerous gas on health is to increase the risk of lung cancer．What is the main idea of the passage?
| A．Some building materials pollute indoor air． |
| B．Some factors cause indoor air pollution． |
| C．Asbestos can cause lung cancer． |
| D．The land on which houses are built contributes to indoor pollution． |
Why are Europeans particularly concerned with building materials?
| A．Lots of building materials there are radioactive． |
| B．They stay home up to 90% of their lives． |
| C．They have a high rate of lung cancer． |
| D．They spend most of their time indoors． |
Why is asbestos a sought-after building material?
| A．It is a kind of insulation foam． |
| B．Asbestos will not give out dangerous gas． |
| C．This material is not easy to catch fire． |
| D．It is rarely present in rock formations． |
Why should we be careful about the land on which a building is to be sited?
| A．To determine whether the land is firm enough for a building to be sited on． |
| B．To make sure that the land contains no radioactive material． |
| C．To make certain that the land releases no formaldehyde or other gases． |
| D．To check whether it contains any combustible materials． |
Below is a discussion on http://www.TalkingPoints.com/.
Stuck on a desert island?
Started on 23rd April by Steve Posts 1 – 7 of 42
Post 1
Steve
USA Hi, everyone. What would you miss most and least if you were stuck on a desert island? For me, it would be the changing seasons in New England. I guess this will sound stupid but I’d probably miss the rain, too. I would not miss getting up at six every day to go to work, though! What about you?
Post 2
Tomas
Germany Good question. Steve, I think I’d miss different types of bread, and shopping at the supermarket. I’d miss the food most. What would I miss least? My mobile phone---I’d like to be completely quiet --- at least for a little while
Post 3
Paola
Italy I would miss the company of people because I know I’d like to have someone to share experiences with. I’d go mad on my own. And I sure would not miss junk (垃圾)mail--- I hate coming home every evening and a pile of junk mail in my post box.
Post 4
Miko
Japan Hi, I would miss Manga cartoon, the internet and Japanese food, like sushi. I’d also miss TV shows and shopping for clothes… In fact, I’d miss everything.
Post 5
Roger
UK I would miss my daily newspaper and listening to the news on TV and radio. I’d feel very cut off if I didn't know what was happening in the world. What I’d miss least would be traffic jams in the city, particularly my journey to work.
Past 6
Jayne Why hasn't anyone mentioned their family? I’d be lost without my husband and two kids. They’re the most important for me. And I can’t get started in the morning without a cup of black coffee. I wouldn't miss doing the housework!
Post 7
Jaime
Mexico It would have to be music. I couldn't live without my music. I wouldn't miss going to school at all or doing homework!Who would miss his or her family most?
| A．Jaime | B．Jayne | C．Miko | D．Paola. |
Which of the following people would feel most uncomfortable without the news media?
| A．Steve. | B．Jaime | C．Roger. | D．Tomas |
How many of them mentioned that they would miss food or drink?
| A．One | B．Two | C．Three | D．Four |
Where is the passage probably taken from?
| A．Newspaper | B．Internet | C．Textbook | D．Magazine |
It was a winter morning, just a couple of weeks before Christmas 2005. While most people were warming up their ears, Trevor, my husband, had to get up early to ride his bike four kilometers away from home to work. On arrival, he parked his bike outside the back door as he usually does. After putting in 10 hours of labor, he returned to find his bike gone.
The bike, a black Kona 18 speed, was our only transport. Trevor used it to get to work, putting in 60-hour weeks to support his young family. And the bike was also used to get groceries (食品杂货) saving us from having to walk long distances from where we live.
I was so grieved that someone would steal our bike that I wrote to the newspaper and told them our story. Shortly after that，several people in our area offered to help. One wonderful stranger even bought a bike, then called my husband to pick ii up. Once again my husband had a way to get to and from his job. It really is an honor that a complete stranger would go out of their way for someone they have never met before.
People say that a smile can be passed from one person to another, but acts of kindness from strangers are even more so. This experience has had a spreading effect in our lives because it strengthened our faith in humanity (人性) as a whole. And it has influenced (影响) us to be more mindful of ways we, too, can share with others. No matter how or how small, an act of kindness shows that someone cares. And the results can be everlasting.Why was the bike so important to the couple?
| A．The man's job was bike racing. | B．It was their only possession. |
| C．It was a nice Kona 18 speed. | D．They used it for work and daily life |
We can infer from the text that ________
| A．The couple worked 60 hours a week | B．people were busy before Christmas |
| C．the stranger brought over the bike | D．life was hard for the young family |
How did people get to know the couple's problem?
| A．From radio broadcasts. | B．From a newspaper. |
| C．From TV news. | D．From a stranger. |
The underlined word "grieved" in paragraph 3 probably means________.
| A．upset | B．pleased | C．frightened | D．lucky |
What do the couple learn from their experience?
| A．Strangers are usually of little help. | B．One should take care of their bike. |
| C．News reports make people famous. | D．An act of kindness can mean a lot. |
Societies all over the world name places in similar ways. Quite often there is no official naming ceremony but places tend to be called names as points of reference by people. Then an organized body steps in and gives the place a name. Often it happens that a place has two names: One is named by the people and the other by the government. As in many areas, old habits died hard, and the place continues to be called by its unofficial name long after the meaning is lost.
Many roads and places in Singaporeare named in order that the pioneers will be remembered by future generations. Thus we have names such as Stamford Road and Raffles Place. This is in keeping with traditions in many countries ---- in both the West and the East.
Another way of naming places is naming them after other places. Perhaps they were named to promote friendships between the two places or it could be that the people who used to live there were originally from the places that the roads were named after. The mystery is clearer when we see some of the roads named in former British bases. If you step into Selector Airbase you will see Piccadilly Circus ---- obviously named by some homesick Royal Air Force personnel.
Some places were named after the activities that used to go on at those places. Bras Basah Road is an interesting example, “Base Basah” means “wet rice” in Malay. Now why would anyone want to name a road “Wet Rice Road”? The reason is simple. During the pioneering days, wet rice was laid out to dry along this road.
A few roads in Singapore are named by their shapes. There is “Circular Road” for one. Other roads may have part of their names to describe their shapes, like “Paya Lebar Crescent”. This road is called a crescent（月牙） because it begins on the main road, makes a crescent and comes back to join the main road again. We learn from Paragraph 1 that _____.
| A．the government is usually the first to name a place |
| B．a ceremony will be held when a place is named |
| C．many places tend to have more than one name |
| D．people prefer the place names given by the government |
Which of the following places is named after a person?
| A．Raffles Place. | B．Selector Airbase. |
| C．Piccadilly Circus. | D．Paya Lebar Crescent. |
What does the underlined phrase “die hard” in Paragraph 1 probably mean?
| A．Change suddenly. | B．Change greatly. |
| C．Disappear quickly. | D．Disappear very slowly. |
Bras Basah Road is named _______.
| A．after an activity | B．after a place |
| C．after a person | D．by its shape |
What can be inferred from the passage?
| A．The way Singaporeans name their places is unique. |
| B．Some places in Singapore are named for military purposes. |
| C．Some place names in Singapore are the same as in Britain. |
| D．Young Singaporeans have forgotten the pioneers. |
A young boy was sitting in the back seat of the car eating an apple. He asked his father, “Why does my apple turn brown?” his father answered, “When the skin is removed, air reaches the flesh of the apple and causes oxidation. This changes the apple’s molecular structure and results in a brownish color.” The boy asked, “ Daddy, what are you talking about?”
I know how that boy feels. Sometimes I want answers to some of those confusing questions that we all meet with, such as how to get through difficult times or what to do in a tough situation. I just want to get it right.
The problem is that I don’t always have the answer I need. Nobody else seems to have them, either. So I go on making mistakes and think that I’ll never get it right.
Often I didn’t know what to do. I often made poor choices, but I gradually improved. Then I realized that I don’t HAVE TO always get it right. I don’t have to always know what to do all the time. All I really need to do is try my best, learn from my mistakes and go on.
Dr. Leo Buscaglia once said, “ No one gets out of this world alive, so the time to live, learn, care, share, celebrate and love is now. That would be pretty hard to do when you’re waiting for all the answers first.”
So you got it wrong. You made a mistake. So what should you do next? Forgive yourself and try again. You may not get out of this world alive, but you can get plenty of life out of this world if you are not too worried about always getting it right. In the beginning, the author tells the story of a boy and his father to ____.
| A．show that the father is very knowledgeable |
| B．say something interesting about apples |
| C．introduce the subject of the passage |
| D．show that children nowadays ask more questions |
How did the boy feel when he heard his father’s explanation?
| A．He admired his father very much. |
| B．He knew what his father meant. |
| C．He thought that he had learned a lot from his father. |
| D．He felt it was difficult to understand. |
What do Dr. Leo Buscaglia’s words mean?
| A．We must make right choices as often as possible. |
| B．We can search the answers when enjoying life itself. |
| C．People have many desires when they enter the world. |
| D．It is hard to lead a happy and satisfying life. |
What can be concluded from the passage?
| A．We should learn from our mistakes and try again. |
| B．We should try to learn and understand the answers to questions. |
| C．It is very important to try to avoid mistakes. |
| D．It is our duty to make the world a better place. |
What is the style of the passage?
A. novel B. news C. essay D poem
Technology is making life easier for some dairy farmers．They use robotic systems to milk their cows．Cows are trained to follow a series of paths that lead to milking stations．Only one cow at a time can enter a station．
Once inside，the cow is rewarded with food．As the cow eats，a robotic arm cleans and connects the animal to the milking machine．A few minutes later，milking is complete．The gate is opened，the cow is released and the next cow enters．
The robotic systems are designed to operate 24 hours a day．The cows get to decide when they want to be milked．Cows are milked an average of about three times a day．Some are milked four to six times a day．
The cows wear collars around their necks that identify them to the system．A computer keeps records on their eating and milking．A cow is released from the station if the computer decides it should not be milked．
The automated system also measures the temperature and color of freshly produced milk．Milk is thrown away if it does not pass the tests．
Professor Plaut believes the systems will appeal（吸引） especially to the next generation of farmers．She means young people who are more interested in technology and less interested in working all the time on the farm．Still，she says the price of robotic milking systems will continue to limit their use．
Doug and Tina Suhr have more than 100 cows on their family farm．Last year it became the fourth farm in southeast Minnesota to get a robotic milking system．A recent story in a local agricultural newspaper said the first robot cost 175 000 dollars．The second cost 150 000．
Doug told AgriNews that wages that would have been paid for one employee in five years will pay for one robot．He says the increase in milk production reaches a high of more than six kilograms per cow per day．From the first paragraph，we can infer________．
| A．the robotic system is designed to reduce labor |
| B．cows can be raised by robots in the future |
| C．robots direct cows into milking stations |
| D．cows are kept clean by robots on some farms |
Besides milking cows，the robotic system also can______．
| A．adjust the temperature of milking stations |
| B．judge the quality of fresh milk |
| C．improve the appetite of cows |
| D．keep fresh milk for two weeks |
Why is the robotic system not popular now?
| A．Because young people have no interest in it． |
| B．Because it is difficult to learn how to use it． |
| C．Because people can’t afford to buy it． |
| D．Because it usually causes the waste of milk． |
According to Doug，what is the wage of an employee?
| A．150 000～170 000． | B．750 000． |
| C．150 000～30 000． | D．30 000—32 000 |
The best title for the passage may be_________．
| A．Letting robot milk your cow | B．Milking cows by hand |
| C．Improving the quality of milk | D．Drinking fresh milk every day |
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