Nuclear power’s danger to health, safety, and even life itself can be summed up in one word: radiation.
Nuclear radiation has a certain mystery about it, partly because it cannot be detected by human senses. It can’t be seen or heard, or touched or tasted, even though it may be all around us. There are other things like that. For example, radio waves are all around us but we can’t detect them, sense them, without a radio receiver. Similarly, we can’t sense radioactivity without a radiation detector. But unlike common radio waves, nuclear radiation is not harmless to human beings and other living things.
At very high levels, radiation can kill an animal or human being immediately by killing masses of cells in vital organs. But even the lowest levels can do serious damage. There is no levels of radiation that is completely safe. If the radiation does not hit anything important, the damage may not be serious. This is the case when only a few cells are hit, and if they are killed immediately. Your body will replace the dead cells with healthy ones. But if the few cells are only damaged, and if they reproduce themselves, you may be in trouble. They can grow into cancer. Sometimes this does not show up for many years.
This is another reason for some of the mystery about nuclear radiation. Serious damage can be done without the victim being aware at the time that damage has occurred. A person can be irradiated(辐射)and feel fine, then die for cancer five, ten, or twenty years later as a result. Or a child can be born weak as a result of radiation absorbed by its grandparents.
Radiation can hurt us. We must know the truth.What is the most dangerous factor of nuclear power?
A.Radiation | B.Quantity |
C.Amount | D.Place |
Which of the following statements is true?
A.Nuclear radiation can do harm to human beings. |
B.Nuclear radiation cannot do harm to human beings. |
C.Nuclear radiation can be detected by human senses. |
D.Nuclear radiation is just like common radio waves. |
How can nuclear radiation kill an animal?
A.By damaging its heart. |
B.By killing a few cells. |
C.By killing many cells in important organs. |
D.By hitting any place in its body. |
Why does nuclear radiation have a certain mystery?
A.Because human beings learn its harmfulness. |
B.Because it can do harm to a person while the victim isn't aware the damage has occurred. |
C.Because nuclear radiation can kill a person very easily. |
D.Because human beings have no effective machine in order to detect nuclear radiation. |
If a human being is hit by nuclear radiation, he may _______.
A.die of cancer after many years |
B.die immediately |
C.have a child who may be born weak |
D.all of the above |
第三部分:阅读理解(共20题;每小题2分,共40分)
阅读下列短文,从每题中所给的A、B、C、D四个选项中,选出最佳选项。
You have heard the expression “horse sense”. As you may imagine, it came from the time when the majority of people traveled in vehicles drawn by horses. A horse does have a lot of common sense, and there are many true stories about horses having saved their drivers from danger of death.
Today for the most part, people travel by train, ship, airplane, and car, but very little by the use of horses. Modern vehicles are propelled by engines, and an engine does not have any sense. In case of danger, many horses could be depended on to help. Not so with the engine; the driver must do all the things.
In recent years, the speed of travel has increased greatly. With the increased speed comes greatly increased danger. The driver of a powerful engine needs to be careful. A moment of being careless may cost a life. In order to drive today, a person must be able to see clearly, and he must learn and follow carefully the rules for safety on the road. Greater attention is the price we pay for using a machine instead of a horse.
1. The passage mainly talks about ______.
A. engines B. safe driving C. using horses D. modern machines
2. The underlined word “propel” in the second paragraph means ______.
A. repair B. raise C. push forward D. made
3. It can be inferred from the passage that ______.
A. a driver must know the rules of safety
B. a driver needs to be able only to tell red from green
C. an eye test is an important part of a driver’s examination
D. greater attention is needed for a driver while driving a machine
4. Which of the following is NOT true?
A. A driver must be able to see and hear well.
B. The driver of a car must follow the rules of safety.
C. Horses are known to have saved their drivers from injury.
D. It is better for vehicles to be pulled by horse than to be pushed by engine.
Everybody hates rats. But in the earthquake capitals of the world – Japan, Los Angeles, Turkey – rats will soon be man’s new best friends.
What happens after an earthquake? We send in rescue dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can’t get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.
How does it work? First , the rat is trained to smell people. When this happens, the rat’s brain gives a signal(信号).This is sent to a small radio on its back, and then the rescuers follow the radio signals. When rat’s brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.
Although there are already robots which can do this job, rats are better. Christian Linster at Cornell University, New York, says, “Robots’ noses don’t work well when there are other smells around. Rats are good at that. ” Rats can also see in the dark. They are cheaper and quicker to train than dogs, and unlike robots, they don’t need electricity!
The “rat project” is not finished, but Julie Ryan of International Rescue Corps in Scotland says, “It would be fantastic. A rat could get into spaces we couldn’t get to, and a rat would get out if it wasn’t safe.” Perhaps for the first time in history, people will be happy to see a rat in a building(but only after an earthquake, of course.)
1.In the world earthquake capitals, rats will bee man’s best friends because they can .
A.take the place of man’s rescue jobs
B.find the position of people alive who are trapped in buildings
C.serve as food for people alive who are trapped in buildings
D.get into small spaces
2.From the third paragraph we know the rescuers can judge a person is alive by .
A.the noise made by the rat
B.the rat’s unusual behaviour
C.the signal sent by the radio on the rat’s back
D.the smell given off by the person
3.In doing rescue jobs, .
A.rats smell better than dogs
B.dogs don’t need to be trained to smell people
C.robots’ sense of smell can be affected by other smells around
D.rats can see in the dark and smaller than robots
4.Rats have all the following advantages except that .
A.they are more fantastic than other animals
B.they are less expensive to train than dogs
C.they don’t need electricity
D.they are small and can get into small places
5.After reading the passage we can know .
A.at present rats have taken the place of dogs in searching for people
B.the “rat project” has been finished
C.people are now happy to see a rat in a building
D.now people still use dogs and robots in saving people
Parking has long been a major headache for drivers in Shanghai. The Transportation Department is mapping out a new plan for the city’s parking system. There are one million cars on the road in Shanghai but only enough public parking space to provide room for 15percent of them. It is no wonder that local drivers get so worried trying to find a place to park.
The city is seeing a rise in private car owners. In March, the city sent out 2,000 private car licenses, the highest number of licenses ever sent out in a month. And prices rose to 14,600 yuan, 500 more than in February. Industry experts say this suggests that local people have a strong, active interest in buying cars.
By the year 2020, the number of automobiles in Shanghai will probably reach two million. If one parking lot is for each car, then a lot of parking space should be built for these vehicles.
Downtown Shanghai is most short of parking space. However, experts point out that simply building more parking lots in downtown areas is not practical and doesn’t provide an ideal solution. The idea of “ Park & Ride” system has been suggested. This means that drivers can leave their vehicles in car par nearby subway or bus stations and ride public transport to go downtown. Based on this idea, the city will limit the number of parking lots in downtown areas and demand higher parking fees but build more parking areas near main subway and bus stops.
1.The underlined phrase “ mapping out ” in the first paragraph means __________.
A. making B. arguingC. controlling D. inspiring
2. About __________ drivers can find places to park their cars in Shanghai now.
A. 850,000 B. 1,000,000 C. 150,000 D. 2,000,000
3. What does the second paragraph mainly tell us ?
A. The city sent out more private licenses in February.
B. Less and less people bought cars in March.
C. The city sent out less private licenses in March.
D. More and more people are going to buy cars.
4. According to the idea of a “ Park & Ride ” system, the city will __________.
A. send out more private car licenses
B. build more parking lots near bus stops
C. encourage people to buy more cars
D. build more parking areas in downtown
In Vietnam(越南), Tet-trung-Thu, or Mid- autumn Festival, is one of the most popular holidays. It is held on the 15th day of the 8th month in lunar calendar
Vietnamese families plan their activities around their children on this special day. In a Vietnamese story, parents were working so hard to prepare for the harvest that they left the childen playing by themselves. To make up for the lost time, parents would use the Aid-Autumn Festival as a chance to show their love and than for their children.
As a result, the Mid- autumn Festival is also called the Children’s Festival. In the USA, this tradition continues in many Vietnamese- American families. Tet-trung-Thu, activities are often centered on Children and education. Parents buy lanterns for their children so that they can take part in a lantern parade at dawn. Lanterns mean brightness, while the parade means success in school. Vietnamese markets sell different kinds of lanterns, but the most popular children’s lantern is the star lantern. Other children’s activities includes arts and crafts(手工艺) in which children make face mas and lanterns. Children also perform traditional Vietnamese dances for grown-ups and take part in contests for prizes and scholarships. Unicorn(麒麟) dancers are also very popular at Tet-trung-Thu festivities.
Like the Chinese, Vietnamese parents tell their children folk stories and serve moon-cakes and other special treats under the bright moon. A favorite folk story is about a carp(鲤鱼) that wanted to bee a dragon. The carp worked hard and finally changed itself into a dragon. Parents use this story to encourage their children to work hard so that they can bee whatever they want to be.
1. The Tet-trung-Thu Festival is held ________.
A. in China and other Asian countries. B. in Vietnamese-American families.
C. all over the world, except Vietnam. D. Across the United States.
2.In Both Vietnam and China, on Mid-autumn Festival people would ___________.
A. eat moon-cakes B. buy lanterns for children.
C. take part in contests. D. buy a carp
3.What is the center of the Mid-Autumn festival in Vietnam?
A. Family get-together. B. Children on education.
C. Relaxation and fun in the middle of the year.
D. parents having more time with their children.
4.According to the passage, parents tell their children folk stories, because __________.
A. children like listening to folk stories in the evening.
B. parents want to show their love for their children.
C. parents want to teach the children to work hard.
D. parents want to make up for the lost time.
CHINA
Coal mines claim (使…失踪) more lives
A COAL mine blast (爆炸) in Jixi, Helongjiang, left more than 100 miners dead on Thursday .Ten mines in Jixi were ordered to stop production. The government has tried to shut down thousands of small, illegal (非法的) mines in the country that do not meet safety standards(标准).
MIDDLE EAST
Bombers continues to kill
PALESTINIANS killed 32 Israelis in three major attac between Tuesday and Thursday. There were two suicide bombing (自杀性爆炸) and a militant (武装的) attack on Jewish settlement. They led to one of the highest Israeli death tolls ( 死亡人数) in such a short period over the last two years.
CHINA
Young people stand tall
The average height of Chinese young people has risen by 6 centimeters pared to that of 20 years ago. This year far exceeds (超过) the word’s average growth speed. A survey on health conducted by a panel(调研组) of Chinese students found the results. According to the world average level, youths get taller by 1 cm every 10 years.
CANADA
Talking about world issue (援助)
The Group of Eight (G8)—the US, Japan , Germany, Britain, France, Italy , Canada and Russia ---- will hold a summit(峰会)on June26 and 27 in Kananaskis, Canada. The G8 are the richest and most powerful countries in the world. G8 leaders and some African presidents will discuss strengthening global economic growth and helping Africa. Kofi Annan, United Nations Secretary General, will also attend.
1. Thousands of mines have been shut because ______.
A. they have blast B. they produced less coal
C. they are very small and illegal D. they don’t meet the safety standards
2. In the last 20 years, the average growth speed of Chinese youths exceeds the world’s average level by _______.
A.1 cm B.4 cm C. 5 cmD. 6 cm
3. What’s the purpose of the Summit ?
A. to strengthen the global economic growth and helping some poor African countries.
B. To make these eight countries much more powerful.
C. To help some African president to strengthen their economic growth.
D. Kofi Annan will have an important speech on world issues.