题目列表(包括答案和解析)
When people want to know about the weather,they usually go to their radios,TVs, newspapers,or to the Internet.However,you can also find many weather signs among wildlife, because of their highly developed senses.Drops in air pressure(压力) produce an effect on small animals in many ways.Mice and deer are good weather indicators.People who spend a lot of time outdoors have observed that,before a storm,field mice come out of their holes and run around.Deer leave high ground and come down from the mountains.
Birds are especially good weather indicators because they also show the effect of a pressure drop in many ways.For example,some birds become irritable(急躁的) and quarrelsome and will fight over a piece of bread.Other birds chirp(叽叽喳喳) and sing just before a storm.It seems they know they won’t get another chance for an hour or two.Birds also seek safe places before a storm.You will sometimes see birds settling in trees or gathering together on a wire close to a building.Pre-storm low pressure makes the air so thin that birds have difficulty flying.
It is unusual to see many birds flying overhead in the summertime,rather than during the periods in the spring or autumn.Watch for other weather signs if you see this.If they fly in the wrong direction,they may be flying ahead of a storm.
By paying closer attention to some important signs in nature,we can become better prepared for any kind of weather.
The word “indicators” in Paragraph 1 probably means ______.
A.maps B.services
C.signs D.stations
There will be a storm if birds ______.
A.make more noise than usual
B.fly in different directions
C.come down from tall trees
D.share a piece of bread
How can birds sense the coming of a storm?
A.By feeling a drop in air temperature.
B.By noticing the change of wind directions.
C.By feeling a drop in air pressure.
D.By noticing the movements of other animals.
The best title for the text would be ______.
A.Signs of a Storm
B.Drops in Air Pressure
C.Animals’ Sharp Senses
D.Nature’s Weather Signs
The smell of fresh air is becoming something of a distant memory, thanks to our increasing use of fragrance (香气). From air fresheners to scented (有香味的) candles, we live in a world of scent.
Recent figures show seven in ten people use air fresheners or scented candles to keep our homes smelling sweet. Yet recent records suggest that perfumed products could affect our health, causing problems including allergies (过敏), headaches and asthma (哮喘) .
One leading expert believes nearly a third of people suffer health effects from being exposed to scents. A major problem is so-called “contact” allergy—where perfumes and scented products cause eczema (湿疹) when they come into contact with the skin. About one in 20 is thought to be affected by fragrance allergy.
“Often it may not be immediately obvious that you have developed a fragrance allergy,” says Dr. Baron. “You don’t react immediately. Gradually, as you are exposed more and more, the body increases its reaction, until it becomes noticeable to you.”
People with pre-existing eczema are particularly vulnerable (易受影响). “The eczema worsens in areas in contact with perfumes,” says Dr. Baron. “But even those without allergies can be at risk of fragrance allergy.” You can become suddenly allergic to perfumes and personal care products that you have been using for years. “Even if you know which fragrance causes a problem, it can be difficult to avoid, as most personal care products –soap, shampoo, sun cream and washing powder—contain fragrances,” says Dr. Baron.
And strong scents can also cause headaches. Fragrances activate the nose’s nerve cells, stimulating the nerve system associated with head pain. To minimize risk, sufferers are advised to minimize the contact.
“Fragrance suggest cleanliness – yet people are smelling a potentially dangerous chemical mixture,” says Anne Steinemann, professor of the University of Washington. “We often use them to mask one problem – as with air fresheners – but create a greater one – adding poisonous chemicals to the air.”
57．What is the text mainly about?
A．The world trend of using fragrance.
B．The benefits of using non-fragranced products.
C．The health problems caused by fragrance
D．The ways of removing allergy.
58．According to Dr. Baron, .
A．our bodies have an immediate reaction to fragrance.
B．seven in ten have suffered fragrance allergy.
C．fragrance can affect people who don’t have allergy
D．people can avoid contacting with fragrance easily
59．Which of the following questions does the text NOT answer?
A．Which products contain fragrance?
B．What’s the influence of fragrance in the air?
C．What are the air fresheners made up of?
D．How are headaches caused by fragrance?
60．The following paragraph might discuss .
A．the asthma caused by strong scents.
B．people’s efforts to protect fresh air.
C．the methods of curing eczema
D．the bad effects of air fresheners.
The smell of fresh air is becoming something of a distant memory, thanks to our increasing use of fragrance (香气). From air fresheners to scented (有香味的) candles, we live in a world of scent.
Recent figures show seven in ten people use air fresheners or scented candles to keep our homes smelling sweet. Yet recent records suggest that perfumed products could affect our health, causing problems including allergies (过敏), headaches and asthma (哮喘) .
One leading expert believes nearly a third of people suffer health effects from being exposed to scents. A major problem is so-called “contact” allergy—where perfumes and scented products cause eczema (湿疹) when they come into contact with the skin. About one in 20 is thought to be affected by fragrance allergy.
“Often it may not be immediately obvious that you have developed a fragrance allergy,” says Dr. Baron. “You don’t react immediately. Gradually, as you are exposed more and more, the body increases its reaction, until it becomes noticeable to you.”
People with pre-existing eczema are particularly vulnerable (易受影响). “The eczema worsens in areas in contact with perfumes,” says Dr. Baron. “But even those without allergies can be at risk of fragrance allergy.” You can become suddenly allergic to perfumes and personal care products that you have been using for years. “Even if you know which fragrance causes a problem, it can be difficult to avoid, as most personal care products –soap, shampoo, sun cream and washing powder—contain fragrances,” says Dr. Baron.
And strong scents can also cause headaches. Fragrances activate the nose’s nerve cells, stimulating the nerve system associated with head pain. To minimize risk, sufferers are advised to minimize the contact.
“Fragrance suggest cleanliness – yet people are smelling a potentially dangerous chemical mixture,” says Anne Steinemann, professor of the University of Washington. “We often use them to mask one problem – as with air fresheners – but create a greater one – adding poisonous chemicals to the air.”
【小题1】What is the text mainly about?
| A．The world trend of using fragrance. |
| B．The benefits of using non-fragranced products. |
| C．The health problems caused by fragrance |
| D．The ways of removing allergy. |
| A．our bodies have an immediate reaction to fragrance. |
| B．seven in ten have suffered fragrance allergy. |
| C．fragrance can affect people who don’t have allergy |
| D．people can avoid contacting with fragrance easily |
| A．Which products contain fragrance? |
| B．What’s the influence of fragrance in the air? |
| C．What are the air fresheners made up of? |
| D．How are headaches caused by fragrance? |
| A．the asthma caused by strong scents. |
| B．people’s efforts to protect fresh air. |
| C．the methods of curing eczema |
| D．the bad effects of air fresheners. |
Drink drivers could be prohibited from driving under the influence if new technology from Nissan is introduced.
The Japanese car maker has developed a new odor (气味) detection system designed to prevent drivers from operating a car if they are over the legal limit. The system works by using a series of sensors (传感器) to detect the level of alcohol the driver has consumed.
A high-sensitivity alcohol odor sensor is built into the gear stick (变速杆), which is able to detect the presence of the driver’s palm as he or she attempts to start driving. If the alcohol level detected is above a pre-determined limit, the system automatically locks the transmission(变速器), immobilizing the car. A voice alert is also issued via the car navigation system telling the driver that he or she is over the limit.
Extra sensors are also placed in the driver and passenger seats and a warning is issued if these sensors detect the presence of alcohol in the air inside the vehicle cabin.
While still in the developmental stage the concept of drink driving detectors being built into cars has generally been welcomed by many drivers.
Nissan said the technology is part of a project aimed at halving the number of fatalities (灾祸) and serious injuries in Nissan cars by 2015 compared to 2005 levels.
The detection system works _______________.
A. by detecting the smell of alcohol in the vehicle cabin
B. by measuring the volume of the alcohol in vehicle cabin
C. by detecting the weight of the school in the vehicle cabin
D. by using a car navigation system
What do we know about the detection system?
A. The detection system is still in the developmental stage.
B. The new technology from Nissan has been introduced.
C. The driving detectors are being built into cars.
D. The system has already been used in some car companies.
The driver’s attitude toward the detection system is that of _______________.
A. annoyance B. welcome C. unconcern D. doubt
What’s the main idea of the passage?
A. Nissan will release drink-proof cars.
B. Traffic accidents will be decreased.
C. A project halving the number of accidents.
D. A new odor detection system.
“Sesame Street” has been called “the longest street in the world”. That is because the television program by that name can now be seen in so many parts of the world. That program became one of American’s exports soon after it went on the air in New York in 1969.
In the United States more than six million children watch the program regularly. The viewers include more than half the nation’s pre-school children, from every kind of economic(经济的), racial(种族的), and geographical group.
Although some educators object to certain elements in the program, parents praise it highly. Many teachers also consider it a great help, though some teachers find that problems arise when first graders who have learned from “Sesame Street” are in the same class with children who have not watched the program.
Tests have shown that children from all racial, geographical, and economic backgrounds have benefited from watching it. Those who watch it five times a week learn more than occasional(偶然的) viewers. In the US the program is shown at different hours during the week in order to increase the number of children who can watch it regularly.
The programs all use songs, stories, jokes, and pictures to give children a basic understanding of numbers, letters and human relationships. But there are some differences. For example, the Spanish program, produced in Mexico City, devotes more time to teaching whole words than to teaching separate letters.
Why has “Sesame Street” been so much more successful than other children’s shows? Many reasons have been suggested. People mention the educational theories(理论) of its creators, the support by the government and private(私人的) businesses, and the skillful use of a variety of TV tricks. Perhaps an equally important reason is that mothers watch it along with their children. This is partly because famous adult stars often appear on it. But the best reason for the success of the program may be that it makes every child watching feel able to learn. The child finds himself learning, and he wants to learn more.
1. “Sesame Street” is actually _______.
A. a street in the US B. a program for children
C. a program for teachers D. a program for students
2. Children who often watch the program _______.
A. can have problems in school
B. will find it a great help
C. will take no interest in their studies
D. will be well educated
3. What is special about the program?
A. It offers great fun.
B. It makes children feel able to learn.
C. It is shown at different hours during the week.
D. Children learn and enjoy themselves while watching.
4. Why is “Sesame Street” so popular in the world?
A. Because it is supported by the government and businesses.
B. Because it uses a variety of skillful tricks.
C. Because mothers watch it along with their children.
D. Because it makes every child watching it feel able to learn.
5. The best title for this passage can be _______.
A. TV Programs B. Educating Children
C. Sesame Street D. A Great Success
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