精英家教网 > 初中英语 > 题目详情

     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

阅读提示:本文介绍了女生比男生在成长的某一阶段更明白事理的科学依据。

1. C细节理解题。由第二段第一句可知答案为   B.

2. B细节理解题。由第二段第二句可知。

3. D段意理解题。由第四段可知:留下来的都是重要的信息,因此 答案为   D.

4. C段意理解题。根据第六段的内容可知:大脑的功能在有时会提髙。

题目来源:2016年启东中学作业本英语专项训练英语3阅读理解和完形填空 > Week 18 Science and technology 科学和科技

练习册系列答案
相关习题

科目:初中英语 来源: 题型:

     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.

     Not all birds migrate. Some who don’t need to worry about food live in the same place all year round. Robins, for exanple,can turn to fruit if they can't find worms or insects. For birds like swallows,who can't find much food,winter is a hard time* Plants die and insects hide The swallows have to move to warmer places.

     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.

     To study migration,scientists band many birds every year. Some are caught again,or found after they die. By checking the band number with the Bird Banding Centre,scientists learn where the bird was first banded and how far it travelled.

     “China started banding birds only about 20 years ago”’ said Hou Yunqiu.

     “There's still a lot for us to discover."

根据短文内容回答下列问题。

1. What does the first paragraph mainly talk about?

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

3. Which birds mentioned in the passage do not migrate?

4. Do wild ducks fly to the south in China?

5. Why do we start the Bird Banding Centre?(请自拟一句话作答)

查看答案和解析>>

科目:初中英语 来源: 题型:

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 (自然保护区) 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.

     The temperature in the wetlands is usually neither too high nor too low. There is a lot of rain and sunshine,too. They are really good places for wildlife. Offering food and home for some special kinds of animals and birds is not the only reason why we need to protect wetlands. Wetlands are important because they also prevent flood. But some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife.

     Luckily,more and more people are beginning to realize the importance of wetlands and wildlife. Every year,on February 2nd,the World Wetlands Day,many activities are held to tell people more about wetlands.

() 1. The Chinese Yellow Sea Wetlands are in the of China.

   A. east   B. south   C. west   D. north

() 2. Usually the weather in the wetlands is .

   A. hot   B. pleasant   C. cold   D. dry

() 3. The World Wetlands Day is on .

   A. April 22   B. June 25   C. February 2   D. March 22

() 4. The best title for the passage is .

   A. China's Wetlands Have All Entered the World's List

   B. Wetlands —Home for Wildlife and Human Beings

   C. Special Animals in the Chinese Yellow Sea Wetlands

   D. Wetlands—Valuable Recourses of Land on the Earth

查看答案和解析>>

科目:初中英语 来源: 题型:

B

Dear Lin Li,

      I’ m glad to get a letter from you. You asked me something about British food. Now,I'm going to tell you what I usually eat every day.

     I usually have bread and eggs for breakfast. Mum prepares milk for me and tea or coffee for Dad.

     Seven out of ten students have lunch at school. The school dining hall has different kinds of food. My favourite food for lunch is sandwiches. I don’t like hamburgers. Some students take lunchboxes to school. In the boxes there are usually sandwiches,biscuits and some fruit.

     Supper is the most important meal in a day from Monday to Friday. Mum cooks very good dishes. We often have meat and vegetables. I like tomatoes,carrots and potatoes. But at weekends,our biggest meal is in the middle of the day. We also have meat and vegetables,but sometimes we have fish and chips or rice. I also like Chinese food. Please write to tell me something about it!

                                                         Yours,                                                                Mark

() 1. Mark often has in the morning.

   A. bread,eggs and fruit

   B. eggs,bread and milk

   C. rice,fish and tea

   D. bread,vegetables and coffee

() 2. From Monday to Friday,70% of the students have lunch .

   A. at home   B. at school

   C. at restaurants   D. at supermarkets

() Mark doesn’t like .

   A. sandwiches   B. tomatoes

   C. carrots   D. hamburgers

() 4. What can we know from the passage?

   A. Mark takes his lunchbox to school every day.

   B. Supper is Mark's biggest meal in a week.

   C. Mark's dad cooks for his family.

   D. Mark writes about his three meals in the letter.

查看答案和解析>>

科目:初中英语 来源: 题型:

C

     “My dear dad,where are we going?” Have you ever heard of this question? It's from the song of Hunan TV station’s show: Where Are We Going, Dad"!

      The show is very popular with many people. In the show,five pairs of fathers and kids go to strange places and finish interesting tasks. The fathers learn to cook and look after their kids. The kids learn about being independent.

      Wang Lu,13, from Hebei,says, “I like Kimi very much,though he finds it hard to finish the work alone. You know,he is so young. ”

      Zhao Jingjing,14, from Jiangsu,says ,“I like Guo Tao's son very much. He looks strong-minded. He doesn’t cry when he meets trouble,and he can often look after himself and even other kids. ”

     On the journey of life,kids learn to grow up,and adults learn to be better parents. Maybe we can plan a trip with our parents. Shall we go?

() 1. How many pairs of fathers and kids are in the show?

   A. Four. B. Five. C. Six. D. Seven.

() 2. In the show,who finds it hard to finish the work alone?

   A. Wang Lu. B. GuoTao’sson.

   C. Zhao Jingjing. D. Kimi.

() 3. What does the underlined word “strong-minded” mean?

   A. 意志坚强的   B. 意志脆弱的

   C. 爱笑的   D. 爱哭的

() 4. Which of the following is true according to the passage?

   A. This most popular show is played on Hubei TV station.

   B. To grow up,we need to be strong-minded and independent.

   C. In the show,kids learn to cook and look after their fathers.

   D. Zhao Jingjing is from Hebei and she likes Kimi very much.

查看答案和解析>>

科目:初中英语 来源: 题型:

A

       Many students ask for advice about improving their English. There are three questions.

       The first question is about real English. Li Hao from Hubei wrote ,“I enjoy watching English films and listening to real English songs. But it takes a long time. What do you think?”

       This is a great way to learn English!Talk about the film or song with your friends,and guess the meaning of the new words. Just enjoy yourself!

       The second question is about speaking. Sam,from Suzhou wrote, “Our school has a foreign teacher. But I'm shy and can't speak to her. What should I do?”

       When I visit China,lots of people in the street say ,“Hello!How are you? Where are you from? Do you like China?” These are good questions to start a conversation. Many people are shy when they speak English,so before you begin,take a deep breath and smile!Smiling always helps.

       The third question is about vocabulary. Oliver,from Anhui wrote ,“I want to remember all the new words. I write them down,but I forget them quickly. What should I do?w

       Try to remember eight or ten words a day. Write them on pieces of paper and place them in your bedroom. Say the words when you see them,and change them every day. And when you’re shopping,how about counting the English words,or saying the English names for everything you see?


() 1. What should you do if you are shy to speak English?

   A. Watch English films.

   B. Write down the words first.

   C. Listen to real English songs.

   D. Take a deep breath and smile before you begin.


() 2. What is Oliver's problem?

   A. He's too shy to talk with others.

   B. He's not able to count English words.

   C. He can't remember new words.

   D. He doesn’t know what real English is.


() 3. What's the best title of this passage?

   A. How to learn English.

   B. Talking about English films.

   C. Advice about English writing.

   D. The way of beginning an English conversation.

查看答案和解析>>

科目:初中英语 来源: 题型:

B

     IMPROVE ON SLEEP

      Good health needs good sleep. Go to bed before you’re tired No eating or reading in bed. Go to bed at the same time before midnight and get up at the same time. Your body likes routine for a good night's sleep.

      STAY FREE OF FLU

      Studies show that a cold or flu virus can lie on our hands for long. So wash all parts of your hands often with soap and water. For more ways to prevent the spread of flu, please call Health Line at 1800-848-1313.

      ORAL HEALTH 

      Brush your teeth twice a day and visit the dentist at least once a year. The mouth is a mirror of disease. The oral examination is not only for the health of teeth,but the whole body. For more of it,please visit www. mydr. com. au.

      FIT FOR LIFE 

     Studies show that many diseases have something to do with little or no physical activity. Try to do it for 30 minutes a day,5 days or more a week. For more

information,please call Health Line at 1800-438-2000.

() 1. If you want to get a good sleep,you’d better .

   A. go to bed after you’re tired

   B. go to sleep at midnight

   C. follow the bedtime routine

   D. eat something or read in bed

() 2. To prevent from catching a cold or flu,it's good for you .

   A. to have a good night's sleep

   B. to brush your teeth twice a day

   C. to get up early every morning

   D. to wash all parts of your hands

() 3. You should visit the dentist at least once a year,because .

   A. the oral examination is necessary

   B. you don't often brush your teeth

   C. some diseases may be in the mirror

   D. you don't have a good night's sleep

() 4. Studies show that many diseases have something to do with .

   A. having no oral examination

   B. washing hands with cold water

   C. sleeping too late sometimes

   D. doing little physical activity

查看答案和解析>>

科目:初中英语 来源: 题型:

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.

     We walked from my work place to a little restaurant on David Street 4 the way,I began to worry: I knew that she had no money,but if I offered to 5 the lunch. I was afraid I would hurt her.

     There were many people in the 6 and all of them were happy. Rose told me to sit and drink coffee by the window. Then she went to 7 in the kitchen. After about 20 minutes,she came out and sat with me. She just paid for one meal and we started to 8 the delicious food together. She told that the restaurant let people work for a meal if they had no money,or would give them a free meal if they were not able to work. To my surprise,she also explained that the 10 who were working there were all volunteers.

     I’11 remember the beautiful afternoon I shared with Rose. 12 we had a meal together only once,it was paid by Rose's work. The weather was 13 and bright,and everyone's smile was warm and bright as well.

     I’m still thinking that life cannot be easy to us,but we can still do 14 for our friends and neighbors. The world will be 15 if everybody would like to share happiness with others. It will never be dark if there is a light in everyone's heart.

() 1. A. rich   B. poor   C. strange   D. crazy

() 2. A. When   B. After   C. Until   D. Unless

() 3. A. tell   B. invite   C. make   D. have

() 4. A. By   B. In   C. On   D. Out of

() 5. A. pay for   B. ask for   C. look for   D. care for

() 6. A. park   B. restaurant   C. hotel   D. bar

() 7. A. sit   B. rest   C. stay   D. work

() 8. A. buy   B. cook   C. enjoy   D. drink

() 9. A. her   B. him   C. me   D. you

() 10. A. workers   B. teachers   C. doctors   D. policemen

() 11. A. never   B. still   C. hardly   D. already

() 12. A. So   B. But   C. Though   D. Because

() 13. A. hot   B. cold   C. cool   D. warm

() 14. A. something   B. anything   C. nothing   D. everything

() 15. A. colder   B. nicer   C. harder   D. worse

查看答案和解析>>

科目:初中英语 来源: 题型:

四、短文填词(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 .

     Once a month,Alvin stopped at the local bus stop. Then someone came out and a 4 each of us if we wanted an ice cream or a drink. Alvin paid for it. At the end of the school year,he took us to his h 5 for dancing. We didn't get treats 1 6 that too often,so what he did for us was h 7 remembered.

     Twenty years later,I called him and t 8 him for all he did for us. I told him that he probably couldn’t remember me,but I sure r 9 him!And I could hear smile in his voice when he said he was happy that I called.

     This is the reason why I do my b 10 to show kindness to everyone I meet. He has had a big influence on my life. And I am very pleased that I was able to tell him.

1.  2.  3.  4.  5.

6.  7.  8.  9.  10.

查看答案和解析>>

同步练习册答案