阅读理解

　　Bev could not do her work．She felt too tired．She put down her book,yawned(打哈欠) and felt better．Bev looked up．Had the teacher seen her? To her surprise,the teacher yawned,too．He took a long breath (呼吸) and opened his mouth wide．He closed his eyes a bit and let out his breath in a big,slow yawn．Then Bev heard other yawns．The teacher said,“Bev yawned because our doors and windows are closed．And the room is warm,her body needed more air．Maybe she yawned because she was tired．Maybe she was hungry．Or she just needed to move a bit．Do you feel better now,Bev?” he asked．“Yes,” said Bev．“Yawns wake us up,” the teacher said．“When you yawn,you stretch(伸展) many parts of your body．That stretching makes you feel good．” There were more yawns．“People do not know why they yawn,” the teacher said．“But if you see or hear a yawn,you may yawn too．And once your yawn starts,you can't stop it．You may close your mouth to stop it．But the yawn will still come．” The teacher stood up and said,“Let's open the window and let some air in．You may also go out for a drink．Having a cold drink or washing your face help to stop yawns．Bev may go first．”

　　How do you feel now after you have read this story? Did you yawn? Watch a friend read this．See if your friend starts to yawn．If you see a yawn,you will know why!

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阅读理解

　　How do you feel if you make a speech in front of the whole class? What about when you go to a birthday party? Do you get relly shy?

　　Shyness meansfeeling nervousor frightened when you are around other people．Expert s(专家)have found that more than 80 percent of the middle school students feel afraid to be the center of the attention．Some kidsare born shy．Some become shy later because of the living experience s．

　　It'sOK if it takesyou a while to feel yourself again when you go to a new place or meet new people．In fact, everyone getsa little shy sometime s．It'sju st a case of how much．

　　Most people have red facesand talk in brokensentenceswhen they get shy．But some become too shy and they won't go to a re staurant because they are too nervousto order and pay for their food．Some are afraid of meeting new people, so theyseldom go out side．Thiskind of shyness can be bad for a per son．

　　If shyness doe sn't stop you doing what you want to do, being shy isn't a very big problem．Some expertssay shy people are cleverer because they think more and talk less．Shy people are also good at working with othersbecause they think more for other people．Some great people in history were shy, too．

　　You see, being shy isn't all bad．But remember-don't let good opportunity(机会)pass by ju st because of it! If you have to sing at a birthday party or practice your spoken English in front of others, just do it! There isnothing to be afraid of．

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阅读理解。

　　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 brains 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 found that 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．

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