更多"第一篇Why Don’t Babies Talk Like Adult"的相关试题:
[单项选择]第一篇Why Don’t Babies Talk Like Adults
Over the past half-century, scientists have settled on two reasonable theories related to baby talk. One states that a young child’s brain needs time to master language, in the same way that it does to master other abilities such as physical movement. The second theory states that a child’s vocabulary level is the key factor. According to this theory, some key steps have to occur in a logical sequence before sentence formation occurs. Children’s mathematical knowledge develops in the same way.
In 2007, researchers at Harvard University, who were studying the two theories, found a clever way to test them. More than 20,000 internationally adopted children enter the U.S. each year. Many of them no longer hear their birth language after they arrive, and they must learn English more or less the same way infants do 一that is, by listening and by trial and error. International adoptees don’t take classes or use a dictionary when they are learning their n
A. were finding it difficult to learn English.
B. were learning English at a later age than US children.
C. had come from a number of language backgrounds.
D. had taken English lessons in China.
[单项选择]（）seems like you're tired. Why don't you rest for a while
A. This
B. It
C. That
D. They
[单项选择] Why Don’’t Girls Think Like Boys
Do you believe that only boys do well in science Does it seem to you that girls have better vocabularies than boys In your opinion, are boys better at building things If your answer to each of those questions is "Yes", you are right, according to an article in Current Science. There are exceptions, but here are the facts.
On the average, males score higher on tests that measure mathematical reasoning, mechanical ability, and problem-solving skills. Females show superior ability in tests measuring vocabulary, spelling and memory. But these differences will probably not always exist. In the future, a person’’s abilities may not be determined by sex. As one scientist says, "Nothing is impossible for a person to be or do."
In several recent studies, young babies have been observed and tested to discover how different abilities are developed. A scientific team headed by Jerome Kanga, a psychologist at Harvard Univer
A. Y
B. N
C. NG
[单项选择]Why don’t some children like their parents [A] Their parents often scold them. [B] Their parents want them to learn too much. [C] Both A and B.
[单项选择]第一篇“Don’t Drink Alone” Gets New Meaning
In what may be bad news for bars and pubs, a European research group has found that people drinking alcohol outside of meals have a significantly higher risk of cancer in the mouth and neck than do those taking their libations with food. Luigino Dal Maso and his colleagues studied the drinking patterns of 1,500 patients from four cancer studies and another 3, 500 adults who had never had cancer.
After the researchers accounted for the amount of alcohol consumed, they found that individuals who downed a significant share of their alcohol outside of meals faced at least a 50 to 80 percent risk of cancer in the oral cavity, pharynx, and esophagus, when compared with people who drank only at meals. Consuming alcohol without food also increased by at least 20 percent the likelihood of laryngeal cancer. “Roughly 95 percent of cancers at these four sites traced to smoking or drinking by the study volunteers,” Dal Maso says. The discouraging news, his
A. 21
B. 20
C. 34
D. 56
