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     How do you remember the way to your house?Where do dreams come from? It is your brain (大脑)

that does these things. A British scientist showed that "sleep can improve one's memory." It' s not a

dream for students to study when they sleep.

     In fact,  your brain is working day and night. If you learn words before bed, a certain part of the

brain may help you to remember the words while you sleep. What' s more, another scientist in the USA

foundthat there was a " talent button (天才按钮)" in the human brain. It might make a person more

talented.

     There are more interesting things about the brain. Your brain uses less energy than a fridge light. Just

two bananas can give the brain enough energy to work for a whole day. According to some scientists,

yawning (打哈欠) keeps our brains"cool", which makes us think quicker.

     Here are some pieces of advice to keep a good brain:

     ·Eat healthy food.

     ·Get a lot of playtime or exercise.

     ·Don't drink or smoke.

     ·Use your brain a lot.

l. A British scientist found out that              could improve our memories.

A. drink              

B. dreams

C. sleep                

D. bananas

2. According to the passage,  if we want to have a good brain, we should             .

A. use our brains more

B. sleep fewer hours

C. work longer hours

D. remember fewer things

3. Which of the following is TRUE according to the passage?

A. Our brains only work in the daytime.

B. Our brains need much energy every day.

C. Smoking can keep our brains healthy.

D. Getting exercise is good for our brains.