题干

A study made by University of Sussex found that men and women who frequently used several types of technology at the same time had less grey matter in a key part of the brain . The researchers said : “ Simultaneously(同时), using mobile phones , laptops and other media devices could change the structure of our brains . ” Worryingly , the part of the brain that shrinks is involved in processing emotion . The finding has linked multi-tasking with a shortened attention span , depression , anxiety and lower grades at school .
The researchers began by asking 75 healthy men and women how often they divided their attention between different types of technology . This could mean sending a text message while listening to music and checking email , or speaking on the phone while watching TV and surfing the web . The volunteers were then given brain scans which showed they had less grey matter in a region called the anterior cingulated cortex ( ACC ) . The findings held even when differences in personality were taken into account . The study , published in the journal PLOS ONE , is the first to make a link between multi-tasking and the structure of the brain .
Researcher KepKeeLoh said : “ Media multi-tasking is become more popular in our lives today and there is growing concern about its impacts on our cognition and social-emotional well-being . ” He added that more researches are needed to prove that multi-tasking shrinks the brain . This is because it is also possible that people with less grey matter in the ACC are more likely to use lots of devices simultaneously .
Scientists have previously described brain structure can be altered on prolonged exposure to new environments and experience . Other studies have shown that training – such as learning magic or taxi drivers learning the map of London – can increase grey matter densities(密度)in certain parts .
【小题1】What can we learn about grey matter from the passage ?
A.Watching the TV for a long time can reduce grey matter .
B.The decrease of grey matter in the ACC affects emotion .
C.People with less grey matter prefer to use media devices .
D.Taxi drivers in London have more grey matter than others .
【小题2】We can know about the study by University of Sussex that __________ .
A.the volunteers in it have lower grades at school
B.it can change the structure of grey matter in our brain
C.it is the first to link multi-tasking with the structure of the brain
D.the findings of it have been supported by some other researches
【小题3】 How does the researcher , KepKeeLoh , feel about the study ?
A.Surprised .B.Cautious .
C.Disappointed .D.Confused .
【小题4】What’s the purpose of the passage ?
A.To inform people of the findings of a research .
B.To stress the importance of grey matter in our brain .
C.To advise people to do more training about our brain .
D.To warn people of the possible danger of media devices .
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同类题1

   For the past six weeks, I have been lucky enough to visit schools and bookstores nationwide to meet young people and talk about my new book!

Through my experience, the most remarkable(引人注目的)thing is that wherever I am, kids tend to ask me the same kinds of questions. They always want to know why women's rights are so important. Besides, they always ask me what issue I most care about. From the bottom of my heart, this is my favorite question to get, because it's the one I tried to answer in my book. I tell them that there is something important that they should focus their attention on. That is where I think they can make a difference.

Once, a parent who came to my book signing brought a group of girls who were reading my book as part of their book club. They came to the signing with their copies of my book covered with tiny sticky notes. When I asked what the sticky notes were for, they told me that they marked each fact that they thought was really important with a note. Later that parent emailed me a video of the girls talking about the later chapters(章)of my book. I have to admit, that video made me smile.

I didn't necessarily mean to shock readers, but I did hope that reading these facts would inspire them to make a difference in their families, their communities and the world around them. And because of readers like those girls and their book club, I am posting this Call to Action video. Facts and information are incredibly important, but they're just the beginning. Like the words on the cover of my book, the world belongs to each of us, and once we're informed and inspired, it's time to get going!

I hope after you watch this video, you'll think about what issue you care most about and then you' ll encourage all the kids in your life to do the same. With a little information, every kid can make a difference, and every kid can answer the question: It's your world—what will you do?

【小题1】How does the author think kids can make a difference?
A.By making efforts to help others.
B.By asking the author's favorite questions.
C.By fighting for women's rights.
D.By caring about something important in life.
【小题2】What do we know about the parent and girls?
A.They have found some problems in the author's new book.
B.They sent the video to defend the author.
C.They took the contents of the author's book seriously.
D.They haven't founded their own book club.
【小题3】What's the purpose of the video posted by the author?
A.To keep the readers inspired and motivated.
B.To help the readers realize what their duties are.
C.To provide some shocking information for the readers.
D.To remind the readers that they should have a good dream.
【小题4】What is the author's tone of writing this passage?
A.Humorous.B.Critical.
C.Serious.D.Encouraging.

同类题2

   When we talk about stars, especially women stars, it seems that they are always young, pretty and own charming body shapes. But recently a Britain's Got Talent(英国达人)star Susan Boyle has changed our views absolutely.
Simon Cowell, one of the judges of the talent show spoke of his shock over Ms Boyle's voice. "This lady came up, and I'm thinking, 'This will take five seconds and I can go to have a cup of tea'. That changed when she began to sing I Dreamed to Dream from Les Miserables. She knew we were going to have that reaction and just to see that look of satisfaction on her face through -it was one of my favorite moments," Cowell said.
The performance was posted on line and before long, the 47-year-old Scottish woman has been famous all over the world.
Speaking from her home in Scotland, Ms Boyle said that she hasn't thought of changing her appearance. She said that her friend helped her with make-up. "I mean, that's hardly a makeover(改头换面)," she added. Ms Boyle also spoke of the reason she first began to explore her vocal talents, "I was kind of slow at school, so getting like singing was a good way of hiding behind that and thus it built my confidence."
【小题1】Susan Boyle is _________
A.a judgeB.a Scottish woman
C.a beautiful womanD.a reporter
【小题2】Susan Boyle had a look of satisfaction on her face when she was singing because______.
A.she was confident of her singing
B.she was satisfied with the judges
C.she was pretty and in good shape
D.she sang the song I Dreamed a Dream from Les Miserables
【小题3】According to the passage, which is NOT true?
A.It was the vocal talents that built Susan's confidence
B.Susan Boyle was not good at her lesson when at school.
C.Susan Boyle became famous because of her appearance.
D.Simon Cowell didn't think Susan Boyle a good singer at the first sight.
【小题4】What can we learn from Susan Boyle's success
A.It's never too old to learn.
B.It's easier to succeed at the age of 47.
C.If you are not able to study well, to be a singer instead.
D.If you have a dream, try to make it come true!

同类题5

Fear may be felt in the heart as well as in the head, according to a study that has found a link between the cycles of a beating heart and the chance of someone feeling fear.
Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting(收缩)and pumping blood around their bodies, compared with the point when the heartbeat is relaxed. Scientists say the results suggest that the heart is able to influence how the brain responds to a fearful event, depending on which point it is at in its regular cycle of contraction and relaxation.
Sarah Garfinkel at the Brighton and Sussex Medical School said: “Our study shows for the first time that the way in which we deal with fear is different depending on when we see fearful pictures in relation to our heart.”
The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces. Dr Garfinkel said, “The study showed that fearful faces are better noticed when the heart is pumping than when it is relaxed. Thus our hearts can also affect what we see and what we don’t see and guide whether we see fear.”
To further understand this relationship, the scientists also used a brain scanner(扫描仪)to show how the brain influences the way the heart changes a person’s feeling of fear.
“We have found an important mechanism by which the heart and brain ‘speak’ to each other to change our feelings and reduce fear,” Dr Garfinkel said.
“We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced, we may be able to develop more successful treatments for anxiety disorders, and also for those who may be suffering from serious stress disorder.”
【小题1】What is the finding of the study?
A.Fear is a result of one’s relaxed heartbeat.
B.One’s heart affects how he feels fear.
C.Fear has something to do with one’s heart health.
D.One’s fast heartbeats are likely to cause fear.
【小题2】The conclusion was drawn by analyzing  .
A.volunteers’ heartbeats when they saw terrible pictures
B.the time volunteers saw fearful pictures and their health conditions
C.volunteers’ reactions to horrible pictures and data from their brain scans
D.different pictures shown to volunteers and their heart-brain communication
【小题3】Which of the following is closest in meaning to “mechanism” in Paragraph 6?
A.OrderB.Treatment
C.MachineD.System