A recent 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 connections in the brain of a three-year-old child.
 Researcher Judit Gervain tested how good newborns are at telling different sound patterns.The 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（敏感的）to where it occurred in the order.
 Gervain is excited by these findings because the order of sounds is the base 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 （辨別）between similar Chinese sounds as well as native listeners.But the other babies一regardless of whether they had watched the video or listened to the audio-learned nothing.

（1）Why are early experiences so important to children according to the study？

D

D

A．They can show connections in their brains.
B．They can increase new information of IQs.
C．They can offer children more attention.
D．They can help to develop their brains.
（2）How was the research carried out？

D

D

A．By recognizing babies' different appearances.
B．By producing images of new words for babies.
C．By testing how babies' brains learn to speak language.
D．By checking babies' brains to identify different sound patterns.
（3）Why is Gervain excited about the findings？

B

B

A．Grammar is important in learning languages.
B．Different orders of sounds have different meanings.
C．The order of words comes from its grammar meaning.
D．Different languages have different grammar rules.
（4）What is Patricia Kuhl most likely to agree？

C

C

A．Learning Chinese is of great benefit to babies' brains.
B．Babies are better than adults in learning a foreign language.
C．Face-to-face communication can improve babies' brains.
D．Babies learn a lot from television，audio books or the Internet.