摘要: What does to do

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What does a UFO look like? Do you believe there are aliens outside the earth? Maybe nobody can tell us exactly, but some of us believe that we humans are not alone in this world. We have friends living outside the earth. And a lot of people in the world think they really have seen a UFO flying in the sky. Now many scientists are trying to understand the origin of the UFO sightings. Scientists even try to draw pictures about aliens and aliens’ life according to their imagination.        
Because we don’t really know about it, we call it UFO or Unidentified Flying Object. Many of us are curious(好奇的) about it and interested in it very much.
While scientists have no same ideas about whether there is an alien or not, it seems that China has been home to some UFO sightings recently.
On August 20th,2011, a UFO was seen at 21:00 by the pilot on the plane which took off from Pudong International Airport to Changchun. At almost the same time, many astrophiles(天文爱好者)took pictures of it. Later, reports from some cities said that the UFO was seen. The pilot said the UFO was small at first, then expanded(扩大),moved north, and disappeared(消失)several minutes later. However, he couldn’t exactly make sure about what he had seen.
【小题1】What do scientists know about the aliens according to this passage?
A.Scientists know about the aliens’ life well.
B.Some scientists try to imagine aliens’ life.
C.Scientists have the same idea about the UFO.
D.Many scientists have already understood the origin of the UFO sightings.
【小题2】What happened on August 20th,2011?
A.A UFO took off from Pudong International Airport.
B.A pilot took pictures of the UFO.
C.Many astrophiles saw the UFO.
D.The UFO was small when it moved north.
【小题3】Which of the following sentences is NOT true according to this passage?
A.UFO is short for Unidentified Flying Object.
B.Some people from some cities said that they saw the UFO on August 20th,2011.
C.The pilot could exactly make sure what he had seen.
D.Many of us are interested in the UFO.
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What does it feel like to break a bone (骨头)? It’s different for everyone, but the pain is often sharp (严重). If the break is small, however, the person may not feel much pain at all. If you think that you or someone else has broken a bone, the most important things to do are to stay calm, make the hurt person comfortable, and call the doctor. Do not move the injured body part since movement could make it worse.
To treat the break, the doctor will need to take an X-ray. This gives the doctor the information he or she needs to set (接上) the bone: to put it back to its normal place. If the bone is large or it is broken in more than one place, the doctor may need to use metal pins (钢钉) to set it. After the bone has been set, the next step is usually putting on a cast, the special, hard thing that will keep the bone in place for a month or two.
Your bones are excellent at healing themselves. Broken bones will produce many new cells (细胞) and tiny blood vessels (血脉). These cover both ends of the broken part, and close up the break until the bone is as whole and strong as before.
【小题1】Which of the following is the best title for the passage?
A.How to Know if a Bone is Broken
B.How Broken Bones Heal Themselves
C.Common Causes (原因) of Broken Bones
D.What You Should Know about Broken Bones
【小题2】When someone breaks his bone, the following should be done except ______.
A.asking the doctor for helpB.comforting the hurt person
C.moving the injured partD.staying calm
【小题3】Which is the correct order to treat the break?
a. take an x-ray  b. use metal pins to set it  c. put it back to its normal place  d. put on cast
A.a→b→c→dB.a→c→b→dC.a→d→c→bD.d→a→b→c
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