She is a quiet girl at school,but sometimes she _____ be very naughty.
A. should B. would C. will D. can
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It’s puzzling, isn’t it? No matter where you try to tickle(使人發(fā)癢)yourself, even on the soles(腳底) of your feet or under your arms, you just can’t.
To understand why, you need to know more about how your brain works. One of its main tasks is to try to make good guesses about what’s going to happen next. While you’re busy getting on with your life, walking downstairs or eating your breakfast, parts of your brain are always trying to predict the future.
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You only have to think consciously about cycling if something changes---like if there’s a strong wind or you get a flat tyre. When something unexpected happens like this, your brain is forced to change its predictions about what will happen next. If it does its job well, you’ll adjust to the strong wind, leaning your body so you don’t fall.
Why is it so important for our brains to predict what will happen next? It helps us make fewer mistakes and can even save our lives. For example, when a chief fireman sees a fire, he immediately makes decisions about how best to position his men. His past experiences help him foresee what might happen and choose the best plan for fighting the fire. His brain can instantly predict how different plans would work out, and he can rule out any bad or dangerous plans without putting his men at risk in real life.
So how does all this answer your question about tickling? Because your brain is always predicting your own actions, and how your body will feel as a result, you cannot tickle yourself. Other people can tickle you because they can surprise you. You can’t predict what their tickling actions will be.
1.What is the best title for this passage?
A. How Does the Brain work?
B. Why Can’t I Tickle Myself?
C. The importance of Prediction
D. The Importance of Our Brains
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A.walk down the stairs
B.eat our breakfast
C. suddenly lose our balance and fall
D. ride a bike
3.The phrase “rule out” in Paragraph 4 means______.
A. decide that something is not suitable B. think about
C. act according to the rules D. expect
4.The passage is probably taken from______.
A. a scientific report for experts
B. a textbook for medical students
C. a book for children
D.a research paper for doctors
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B. the advantage of weboholism
C. the popularity of weboholism
D. the effect of weboholism
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A. weboholism has the greatest effect on teenagers
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A. It contributes to the development of the web.
B. The chat room language may change social culture.
C. The problem will be getting more and more serious later.
D. People addicted to the web often become inactive in real life.
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B.it has to cover things that happen in a certain locality
C.readers are difficult to please
D.it tries to serve different readers
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