题目内容：

    A study showed that the experiences children have in their first few years are important . These experiences affect the development of the brain. When children receive more attention, they often have higher IQs. Babies receive information when they see, hear and feel things, which makes connections between different parts of the brain. There are a hundred trillion (万亿) connections in the brain of a three-year-old child.

Researcher Judit Gervain tested how good newborns are at distinguishing different sound patterns. Her researchers produced images of the brains of babies as they heard different sound patterns. For example, one order was mu-ba-ba. This is the pattern “A-B-B". Another order was mu-ba-ge. This is the pattern “A-B-C”. The images showed that the part of the brain responsible for speech was more active during the “A-B-B” pattern. This shows that babies can tell the difference between different patterns. They also were sensitive to where it occurred in the order.

Gervain is excited by these findings because the order of sounds is the building block of words and grammar. “Position is key to language," she says. “If something is at the beginning or at the end, it makes a big difference: ‘John caught the bear.’ is very different from ‘The bear caught John.’ ”

Researchers led by scientist Patricia Kuhl have found that language delivered by televisions, audio books,the Internet, or smartphones－no matter how educational－doesn’t appear to be enough for children’s brain development. They carried out a study of nine-month-old American babies. They expected the first group who’d watched videos in Chinese to show the same kind of learning as the second group who were brought face-to-face with the same sounds. Instead they found a huge difference. The babies in the second group were able to distinguish between similar Chinese sounds as well as native listeners. But the other babies －regardless of whether they had watched the video or listened to the audio－learned nothing.

1.What makes connections in a baby’s brain?

A. Having a higher IQ. B. The connection with other babies.

C. The baby’s early age. D. Experiencing new information.

2.What did Judit Gervain and her team find in the experiment?

A. Word order is relevant to meaning. B. Babies identify different sound patterns.

C. A certain brain region processes language. D. Babies can well understand different words.

3.What does the underlined sentence mean in Paragraph 3?

A. Words have different sounds.

B. Grammar is important in learning languages

C. Different orders have different meanings.

D. Different languages have different grammar.

4.What is the main conclusion from the study led by Patricia Kuhl?

A. Babies shouldn’t watch a lot of television.

B. Social communication improves babies’ brain development.

C. Listening to different languages helps to develop babies’ brain

D. Foreign languages are beneficial to babies’ brain development