Hey,girls,if your boy classmates play naughty again,leave them alone. You are far more sensible than them,aren’t  you?

     Now Scientists from Newcastle University,UK, and Seoul University,South Korea,found that the brain matures earlier in girls than in boys. As the brain matures it begins to cut out unimportant information and focuses on important information. This process is called “pruning”.

     In order to work out this process,scientists scanned deep inside the brains of 121 people aged between 4 and 40. They found that pruning began much earlier in girls than in boys. Between the age of 10 and 12,a girFs brain will start to see a lot of activity as this pruning process happens. But for boys,this starts around the age of 15 and 20.

During this process,the brain will turn off memories,sounds or sights that appear several times. But important connections,like linking the sound of a familiar person’s voice to their face are kept.

     “The loss of connectivity during brain development can help to improve brain function ,” scientist Sol Lim told The Daily Telegraph.

      Imagine you are at a party and everyone is talking. You can5t concentrate. But if you turn off some of the voices,it is easier to hear the others. The brain works in a similar way.

If some of the connections are not there,it is easier to do the work.

      This new finding could help explain why teenage girls seem to grow up faster than their boy classmates.


() 1. What did the scientists find?

   A. Boys are more naughty than girls.

   B. Girls are smarter than boys.

   C. The brain matures earlier in girls than in boys.

   D. Children's brains become smaller as they grow up.


() 2. “Pruning” is a process that .

   A. the brain experiences as it matures

   B. makes the brain only remember important things

   C. begins much earlier in boys than in girls

   D. makes a girl's brain remember fewer activities


() 3. During the pruning process,the brain will sometimes turn off the following EXCEPT .

   A. memories   B. sounds

   C. sights   D. important connections


() 4. What does the party example show us?

   A. It's difficult to concentrate at a party.

   B. It's too noisy for your brain at a party.

   C. Brain function can improve sometimes.

   D. Teenage girls like to attend parties more than boys.

B

閱讀提示:本文介紹了女生比男生在成長的某一階段更明白事理的科學(xué)依據(jù)。

1. C細(xì)節(jié)理解題。由第二段第一句可知答案為   B.

2. B細(xì)節(jié)理解題。由第二段第二句可知。

3. D段意理解題。由第四段可知:留下來的都是重要的信息,因此 答案為   D.

4. C段意理解題。根據(jù)第六段的內(nèi)容可知:大腦的功能在有時會提髙。

題目來源:2016年啟東中學(xué)作業(yè)本英語專項訓(xùn)練英語3閱讀理解和完形填空 > Week 18 Science and technology 科學(xué)和科技

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科目:初中英語 來源: 題型:

     Do you remember the song “Little swallow,wears bright clothes,and comes here every spring”?Do you want to know where all the swallows go during winter? They fly south in autumn to staywarrn and fly back north next spring. This type of travel is called migration.

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     There are over 1 ,300 kinds of birds in China. More than half of them migrate,says Hou Yunqiu,an expert at the Bird Banding Centre of China. This includes swallows,wild ducks,swans and wild geese.

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根據(jù)短文內(nèi)容回答下列問題。

1. What does the first paragraph mainly talk about?

2. What is the main reason for bird^s to migrate?

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科目:初中英語 來源: 題型:

C

     There are many wetlands in China and some of them have become the worlds important wetlands. The Chinese Yellow Sea Wetlands are among them. They are in mR Jiangsu Province. They are home for many different kinds of birds and animals. The world's largest Milu Deer Nature Reserve (自然保護(hù)區(qū)) is in them. More than 700 miludeer live freely there. There are not many red-crowned cranes in the world,but every winter you can see some in the Red-Crowned Cranes Nature Reserve in the Yellow Sea Wetlands.

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科目:初中英語 來源: 題型:

B

Dear Lin Li,

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科目:初中英語 來源: 題型:

C

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A

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B

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科目:初中英語 來源: 題型:

一、完形填空(30分) 

     The story was a true one and still moved me deeply. Thirty years ago,I got to know a 1 lady named Rose. She had no kids and lived alone. 2 I went to visit her,I always took Rose some coffee and food. One day she said she would 3 me to have hunch.

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科目:初中英語 來源: 題型:

四、短文填詞(30分)

     I took the bus to school every day when I was in primary school. Alvin,our bus d 1 ,picked us up every morning. We were all from p 2 families. My parents could hardly support the family with six c 3 .

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1.  2.  3.  4.  5.

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