题目列表(包括答案和解析)
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 the 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．
1.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．
2.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．
3.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．
4.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．
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．
【小题1】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． |
| 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． |
| 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． |
| 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． |
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 the 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．
| 任务型阅读。请认真阅读短文，根据所读内容在表格中的空格里填入一个最恰当的单词。 | ||||||||||
| Internet shopping is a new way of shopping. You no longer need to walk round hundreds of shops looking for the items you need. Nowadays, you can shop for just about anything from your armchair. All you need is a computer which is linked to the Internet. People can shop for a variety of products on the Internet. Physical products include items such as books, CDs, clothes and food. These types of products are the most common purchases (购入品) through the Internet. You can also buy information products such as on-line news, magazine stories, or computer software. Services such as booking airline tickets, reserving (预定) hotels or renting cars are also available (可得到的) on the Internet. You can also go shopping on the Internet for entertainment services and take part in online games or e-mail "chats". Internet shopping offers a number of benefits for the shopper. The most important advantage is convenience. You can shop when you like as the on-line shops are open 24 hours a day, and you do not have to queue with other shoppers at the check-out counters. Secondly, it is easy to find what you are looking for. Finally, it is often cheaper to buy goods through the Internet, and you can tell the shop exactly what you want. The main disadvantage of Internet shopping is that you cannot actually see the products you are buying or check their quality. Also, many people enjoy shopping in the city and miss the opportunity to talk to friends. Some people are worried about paying for goods using credit cards, so Internet companies are now finding ways to make on-line payment safe. Internet shopping is sure to become more and more popular in the years ahead. It promises to change the way we buy all kinds of thing-from tonight's dinner to a new car. | ||||||||||
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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 the 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.
1．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.
2．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.
3．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.
4．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.
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