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If someone is hurt, do you know what to do? Read about first aid for some medical problems.
If Someone Has a Nosebleed（流鼻血）...
●Using your fingers, press hard just under the bridge of the nose.
●Throw the head back if bleeding is not serious.
●Keep the patient（患者） quiet.
●Put ice around the patient’s nose.
●Place cotton（药棉） deep into the patient's nose.
If bleeding can’t be stopped, call for medical aid.
If Someone Faints（昏倒）...
●Place the patient on his back with his head lower than his feet.
●Keep the patient warm.
●Do not give the patient any food or water.
●Have the patient rest for at least l5 minutes.
If Someone Gets a Scorpion（蝎子）Sting（叮）...
●Place the patient on her back.
●Keep the patient calm. Do not allow the patient to walk or move, if unnecessary.
●Cover the patient with something warm.
●Put ice on the area of the sting.
●Call for medical help or take the patient to a doctor immediately.
1.There are ____________medical problems in this passage.
A. 2 B. 3 C. 4 D. 5
2.If a person faints we should ____________.
A. keep him quiet B. press his nose hard
C. keep him warm D. give him water and food
3.Ice is useful for ____________.
A. a nosebleed and a scorpion sting
B. a nosebleed and a faint
C. a scorpion sting and a faint
D. a faint and a bad cold
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What is the first thing you want to do when you see someone yawn? You want to yawn, too! Yawning iscontagious.
Scientists have found that all people yawn. Babies start to yawn even before they are born. The earliest yawn takes place when a baby is still inside its mother. When young children are about one year old, they start to yawn when they see others yawning. That's why scientists think yawning is contagious.
It’s no secret that yawning is contagious, but why do we yawn? Well, scientists are not really sure.
Some think we yawn because we feel bored. Others believe yawning has something to do with breathing. When there is too much carbon dioxide(CO2) in our bodies, our bodies will tell the brains to breathe deeply. That causes a big yawn.
In 2007, scientists said people yawned to cool down their brains. These scientists found people yawned more often if they were warmer than others.
Scientists are still trying to find out why yawning happens and why it is so contagious. But they are only sure that when one person yawns, immediately everyone else nearby wants to yawn, too.
1.The underlined word "contagious" in Paragraph 1 means__________.
A. helpful to our health B. passing from one person to another
C. hard to understand D. getting into one trouble after another
2.According to the scientists, people start to yawn when they are__________.
A. born B. one year old C. 17 or 19 years old D. inside their mothers
3.Which of the following is NOT RIGHT according to the passage? __________
A. People yawn to catch others' attention. B. People yawn because they are bored.
C. People yawn to cool down their brains. D. People yawn to get rid of carbon dioxide.
4.We can probably read this passage in a__________.
A. story book B. movie poster C. science magazine D. travel guidebook
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首字母填空
What will you do if you are in a crowd(人群)? The first and most important t1. is to make yourself know where you are and where the exits are. No matter where you are, make sure you always know how to get out and to be safe.
Make yourself know what type of ground you are standing on. Wet or uneven(不平坦的) ground can make you f2. down in a crowd of moving people. If you find y3. in the middle of a moving crowd, you must be careful. Do not walk a4. the moving direction and do not stop or sit down, because you could get trampled(踩踏) e5.. Instead, move in the same direction of the crowd. Keep your h6. up on your chest(胸部) to protect it. If you fall down, get up quickly. If you can’t get up, ask someone to pull you up. If you have kids, lift t7. up. If you fall and cannot get up, keep on m8. in the same direction of the crowd. If that is not p9., then cover your head with your arms. Try to keep away from hard things in a crowd. If you’re pushed against them you may be hurt badly. We should learn to p10. ourselves. Stay away from the crowd.
Remember: Whatever you do, safety is first!
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—What ______ things do you know.
—Sorry. I know only a little about it. You may ask someone ______.
A. other; other B. other; else C. else; else D. else; other
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Do you know what the hump(驼峰) of a camel is used for? If you answered to store water, guess again. In fact, a camel's hump is a place for storing fat.
Most animals, including humans, store fat throughout their bodies, under their skin. But camels store their fat in one place, their hump. A hump can weigh as much as 80 pounds. Why do camels keep their fat this way? The answer is most likely because of their environment. Camels can go up to two weeks without eating because they have this fat to live off.
Also camels are great at handling(处理，应付) changes in body temperature. Their humps can help the camels keep cooler. Their coats also help them adapt(适应) to the heat. While the coat is thick, it reflects(反射)the sunlight and protects the camel from the heat that rises off the desert sand.
There are two kinds of camels, those with one hump and those with two humps. Camels with one hump are called Dromedary or Arabian camels. They live in the dry deserts in West Asia. Camels with two humps are called Bactrian camels. They live in Central and East Asia.
Besides their humps, camels have a lot of interesting facts. They can live between 40~50 years. They can carry about 400 pounds and run up to 40 miles per hour. It's true that camels can go long time without drinking water, and they can drink about 26 gallons of water at a time. Camels can also close their nostrils(鼻孔). So whether a camel has one hump or two, it is one amazing animal that is very well adapted to its environment.
1.What is a camel's hump used for?
A. Storing water. B. Storing fat.
C. Carrying food. D. Carrying riders.
2. From the passage we can learn that ________.
A. camels' humps are very interesting
B. camels' humps can make them amazing
C. a camel's hump can weigh as much as 80 pounds
D. camels with two humps are called Dromedary camels
3.Which is the best title of the passage?
A. Interesting humps B. One hump or Two?
C. Great animals D. Two kinds of camels
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--Do you know ___it is good or not to smoke in public? .
A. whether B. if C. what
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If you don’t know ________ the new robot toy, you’d better read the instructions first.
| A．where to mend | B．how to make | C．how to use | D．where to buy |
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Read the following sentence. “Do you know how to use the machine? First, you should start the engine.” The underlined part is to .
A.offer an example B.give an instruction C.ask a question D.give a reason
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— Do you know what to her ?
— Yes . She hurt herself while playing soccer yesterday .
A. wrote B. happened C. listened D. talked
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If you know the pronunciation of the letter “a” in the word “cake”, do you know how to read “haze”?
A.／heiz／ B.／hæz／
C.／hз:z／ D.／hΛz／