题目内容
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
B
C
C
A
【解析】略
Pets are popular. They’re good listeners, they encourage us to exercise, and they’re always on our side when we argue with others. They can bring people comfort and pleasure.
But it is important to keep in mind that pets can carry diseases that can make you sick. Washing your hands often — especially after you touch, feed, or clean up a pet — is the best way to keep yourself healthy and prevent the spread of disease. Be sure to clean your fingernails(指甲)carefully every time you wash.
You also can protect your health by wearing gloves while cleaning animal cages or cat litter boxes. Avoid washing your pet in the bathtub (浴缸), but if you do, always disinfect (消毒) the tub immediately afterward.
Be sure to bring your pet to the hospital for examinations every two weeks or month and whenever your pet is sick or injured.
You can do a few other things to keep yourself and your pet healthy. Only give your pet food that has been planned ahead for them. It’s not a good idea to share your food with your pet. Human food (like chocolate) can make animals sick. Never feed your pet raw meat because it can carry germs (细菌) that cause serious illness.
And funny as it can be to see your dog or cat drinking from the toilet, don’t let pets do this. It’s bad for your pet’s health! Give them clean, fresh water to drink at all times.
Never give milk to cats. The only milk an animal should drink is from its mother. Cow’s milk is not for pets, especially for cats, as it makes them sick.
Finally, some animals aren’t pets. Don’t take in a wild or abandoned (被抛弃的) animal as a pet because it may have diseases that could make you or your family sick. Instead, turn to an animal rescue group that is trained in helping sick or abandoned animals.
【小题1】The first paragraph mainly tells us that pets can ______.
A.be great friends | B.bring us pleasure |
C.help us keep healthy | D.do harm to us |
A.washing your fingernails after touching your pet |
B.wearing gloves when cleaning your pet’s cage |
C.washing your pet in the bathtub |
D.bringing your pet for examinations regularly |
A.the cow | B.the mother cat |
C.cow’s milk | D.mother cat’s milk |
A.Sharing your chocolate with your dog. |
B.Letting your dog drink from the toilet. |
C.Feeding your little cat with raw meat. |
D.Giving your cat cooked fish. |
A.call an animal rescue group |
B.bring it back to your home |
C.give it first aid(急救)in time |
D.help to find its owner |
It was shortly before midnight, and Dr Patricia was getting ready for bed. The phone rang on the end of the line was a woman about to break a promise.
The woman was her mother’s neighbor. Flora Harris had made the neighbor swear she wouldn’t tell her daughter she’d had a heart attack and was in the hospital, for fear her daughter would worry. The neighbor wisely decided to disobey orders.
Harris desperately wanted to get to the hospital immediately, but she couldn’t. She lives in Washington, D. C, and her mother lives in California.
For the past year a half, Harris has gone to Los Angeles every other month to take care of her mother. Flora Harris takes care of her husband, James, who’s 91 and has Alzheimer’s disease. They live in their own home, and a caregiver comes to help them a few hours a day.
Harris is one of many Americans facing the heartache of how to take care of aging parents from afar. She’s often worried, not to mention exrtemely busy with a demanding job, two teenage daughters and the frequent trips to California.
In some ways, Harris is lucky. She has the resources to make the trips to Los Angeles. Plus, Harris is a doctor who treats the elderly.
“But it’s still tough,” she says. “I can foresee what the next few years are going to look like, and it’s not a pretty picture. My father’s going to need diapers (尿布). There will come a time when he won’t recognize me and he’s easily excited. I worry he’s going to be violent and hurt my mother.”
So what do you do when you live a continent away from your aging, sick parents? There are no magic answers. You can hire someone to help, but you can’t oursource it completely.
1.Why was the woman thought to have broken a promise?
A.She failed to take care of Flora. |
B.She was not supposed to call Harris at midnight. |
C.She couldn’t go to hospital on time. |
D.She told Harris about her mother’s illness. |
2.What can we learn about Patricia Harris from the passage?
A.She thinks it harder to look after her parents the next few years. |
B.Her parents cannot take of themselves at all. |
C.She cannot do a demanding job. |
D.She cannot afford to go to California often. |
3.What does the underlined word “outsource” in the last paragragh mean?
A.Arrange somebody outside to do a job. |
B.Work something out by oneself. |
C.Speak something out for help. |
D.Understand something. |
4.What’s the main idea of this passage?
A.Aging people in the USA are increasing. |
B.The rate of heart disease is high in America. |
C.It is difficult to tend aging parents from afar. |
D.Harris advises on tending aging parents from afar. |