— You’ll have to use the stairs. I’m sure the lift is out of _______.
— Is it under repair?
— Yes.
A. control B. use C. work D. order
It’s not a particular brain region that makes someone smart or not smart. Nor is it the strength and speed of the connections throughout the brain or such features as total brain volume. Instead, new research shows, it’s the connections between very specific areas of the brain that determine intelligence.
“General intelligence actually relies on a specific network inside the brain, and this is the connections between the gray matter, or cell bodies, and the white matter, or connecting fibers between neurons(神经元)，”said Jan Glascher, lead author of a paper appearing in this week’s issue of the Proceedings of the National Academy of Sciences.
The results weren’t entirely unexpected, said Keith Young, vice chairman at Texas A﹠M Health Science Center College of Medicine in Temple, but “it proves that good communication between various parts of brain are very important for this general intelligence.”
“People noticed a long time ago that, in general, people who are good test-takers did well in a lot of different subjects,”explained Young. “If you’re good in mathematics, you’re also usually good in English. Researchers came up with this idea that this represented a kind of overall intelligence.”
Hoping to learn more, some experts located 241 patients who had some sort of their lesions (损害). They then diagrammed the location of their lesions and had them take IQ testes. “We took patients who had parts of their brain damaged, tested them on intelligence to see where they were good and where they were bad, then we connected those scores across all the patients with the location of the brain lesions,”Glascher explained. “That way, you can know the areas that are associated with reduced performance on these tests, which means these areas are really important for general intelligence.”
“These studies suggest results based on the absence of brain tissue (组织),”added Paul Sanberg, famous professor and director of the University of South Florida Center. “It allows them to systemize and find areas important to intellingence.”
1. Which of the following is the best title for the passage?
A. General Intelligence Depend on Brain Volume
B. Scientists Explain Mysteries of Intelligence
C. Science Research Done on Human Brain
D. Brain Lesions Cause Patients Stupid
2.According to Keith Young, we can infer that_____________.
A. the parts of brain are working smooth on their own
B. a person good at maths has obstacles learning languages
C. overall intelligence will make a person successful
D. Jan Glascher’s article really shocks the world
3. Why did experts locate 241 patients with some sort of brain lesions?
A. To diagram the location of their lesions.
B. To take IQ tests to the patients.
C. To know more about the secrets of intelligence.
D. To take better care of the patients.
4.From the diagram, the experts concluded that_____________.
A. the absence of brain tissue will influence intelligence
B. the brain lesions can improve the performance
C. patients with brain lesions will get a high score
D. Some areas totally determine the ability of intelligence
Buses are celebrating their 100th anniversary. About 80 percent of all public-transport passengers worldwide are carried by buses.
The bus is a very efficient mode of transport, being cheap, flexible, comfortable and, in many cases, tailored to the needs of users both in terms of capacity and speed. Buses operate in mixed traffic, and are easy to put in service.
From an economic, environmental and social point of view, the bus remains the best solution to the problem of achieving balanced and environmentally-friendly urban development. Indeed, the bus is the only mode of public transport in many of the world’s cities, and plays a key supporting role in cities with rail transport.
Over the past decades, increased use of roads by private cars has contributed to terrible traffic problems, affecting the speed of buses as well, and hence their service quality, reliability, energy consumption, and economy. In such circumstances, the efficiency and performance of buses depends heavily on special lanes. Various forms are possible----from a mere painted mark on the road to more expensive variants such as elevated lanes, movable barriers, and “bus locks”.
A related trend is to look beyond vehicle technology alone and to consider the wider system, of which buses are a part, such as the infrastructure(基础设施)and other operational aspects of city. This is commonly known and promoted as the “bus-system approach”. Other key innovations(革新) include clean engines, alternative fuels, and guidance devices. In terms of the designs of buses, much of what has happened to light rail can be transferred to them, including the shapes of the vehicles themselves.
The energy consumption of a bus per passenger is one-sixth that of a car, and buses are only responsible for about 5% of the CO2 emissions generated by vehicles at present.
1. From this passage we learn that_____________.
A. buses are the most environmentally-friendly of all motorized vehicles
B. buses were first used more than a century ago
C. most passengers prefer trains to buses
D. a bus has a much larger capacity than any other vehicle
2. What has affected the service quality of buses?
A. Unsuitable infrastructure. B. Private cars.
C. The increasing population of cities.
D. Very rapid urban development.
3. Which of the following is an approach to improving bus service?
A. Improving the speed of buses.
B. Reducing the number of private cars.
C. Setting up special lanes for buses.
D. Increasing the number of buses.
4. From the passage we can infer that in the future_____________.
A. there will be more buses than today
B. bus engines will need no power
C. buses will be replaced by other means of transport
D. the appearance of buses will change
Camp memories last forever! We make sure they are unforgettable!
Shadow Ridge Summer Camps offer so many exciting things for campers to do. Unlike other camp programs that include horses as a small part of their program, at Shadow Ridge horses ARE, the program! We are 100% horse from stable(马厩)management, nature walks, and track rides to bedroom furnishings.
Horses help us achieve many of our aims. Girls can learn to develop responsibility, self-confidence and personal connections in their lives while having fun. Using horses as a wonderful tool for education, our camps offer an interesting place for growth and learning.
Imagine each girl having her very own horse to spend time with and a best friend to love and take care of. Each camper is responsible for a horse for the week. Our riding program provides a lot of riding and lesson time. Campers will learn how to take care of the horse and the tack(马具), as well as how to ride. Days are filled with horse-related activities to strengthen the connection between each girl and horse, as the girls learn to work safely around the horses.
At Shadow Ridge we try to create a loving, caring family atmosphere for our campers. We have “The Bunkhouse”(4 girls), the“ Wranglers Roost”(4 girls), and “The Hideout”(2 girls)in our comfortable 177-year-old farm house. All meals are home cooked, offering delicious and healthy food for the hungry rider.
Our excellent activities create personalized memories of your child's vacation, Each child will receive a camp T-shirt and a photo album (usually 300-500 pictures) of their stay at camp.
Our camps are offered during June, July and August 2007, for small groups of girls aged 13-16 years, not only from Canada but also other parts of the world.
We will send you full program descriptions at your request.
1. What is the main purpose of the passage?
A. To attract people to the camps.
B. To talk about camping experiences.
C. To describe the programs of the camps.
D. To explain the aims of the camps.
2. What do we know about the camp programs at Shadow Ridge?
A. Campers are required to wear camp T-shirts.
B. Horses play a central role in the activities.
C. Campers learn to cook food for themselves.
D. Horse lessons are offered all the year round.
3. The programs at Shadow Ridge mainly aim to help people ________.
A. understand horses better B. enjoy a family atmosphere
C. have fun above other things D. achieve an educational purpose
4. The passage is written mainly for ________.
A. horse riders B. teenage girls
C. Canadian parents D. international travelers
Mr. Frank asked me a question _______ I could go with him to _______ he called the Treasure House the next week.
|
A．that; which |
B．whether; that |
C．whether; what |
D．that; where |
—The terrible accident is under investigation.
—Actually, quicker action ______ those workers trapped in the mine.
|
A．might have saved |
B．must have saved |
C．should have saved |
D．could have saved |
