The news is so ________ that all of us are quite __________

A. excited ; excited B. excited ;exciting

C. exciting ;exciting D. exciting ; excited

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I hope _______ the stationery with those children from poor areas.

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When something _________ me, I can always go to my true friend Amy.

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My ____ brother is three years ____ than I.

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Lots of people in our hometown _______the old and they usually offer their seats to them on buses.

A. agree with B.worry about

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Mike couldn’t solve the problem and I couldn’t, ________

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______ Mike ______ his homework in the evening?

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--- ______ are the students in your class?

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閱讀下面材料，從每題所給的A、B、C、D四個(gè)選項(xiàng)中選出最佳選項(xiàng)

Your brain controls everything you do. It makes it possible for you to think, Learn, create and feel; to blink(眨眼) and breathe and for your heart to heat –this fantastic control center is your brain. It is so amazing that a famous scientist once called it " the most complex(復(fù)雜) thing we have yet discovered in our universe".

Can this small grey organ(器官) , which weighs less than one and a half kilos,

really do so much? Amazingly , your brain contains about 100 billion neurons(神經(jīng)元) -it would take you over 3 ,000 years to count them all. Believe it or not, the activity in your brain never stops. Your neurons create and send more messages than all the phones in the world. And although one neumn creates only a little electricity, all your neurons together can produce enough electricity to power a light bulb (燈泡).

So exactly how fast does your brain work? Well, imagine this: a bee lands on your foot. Neurons in your skin send this information to your brain at a speed of more than 240 kilometers per hour. Your brain then uses other neurons to send the message back to your foot to shake the bee off quickly. These neurons can send this information at more than 320 kilometers per hour. No computer has your hrain's unbelievable ability to deal with the amount of information coming from your eyes, ears and other sensory organs.

But how does your brain allow you to leam things Lhat you will use in the future? The structure (結(jié)構(gòu)) of your brain changes every time you have a new thought, remember or leam something. For example, riding a bike seems impossible at first, but soon you are able to do it. How? As you practice, your brain sends "bike riding" messages again and again Soon, the actions are learnt and you are able to ride a bike easily from then on.

1. From the passage we know that neurons______________ .

A. receive messages very slowly

B. are only found in your skin

C. send messages to your brain

D. need electricity to work

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B. show how fast they have become

C. say that computers have no abilities

D. ask people to use computers more

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A. your brain will power a light bulb

B. your heart beats faster

C. you remember something

D. the structure of your brain changes

4.The article is mainly ahout ________________ .

A all the steps when your brain leams things

B. what an unbelievable organ the human brain is

C. how the brain makes people smarter than computers

D. the things you can do to make your brain work faster

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