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Teens' lives hit by economy
Some teenagers are crossing their dream colleges off their lists.Others are thinking of skipping their senior trips or reducing prom(毕业舞会)costs.Many are finding their work hours cut while their expenses rise.
So，who exactly is punishing them？Is it their parents，teachers or employers？No，it's the economy.
If you are like most teenagers，you probably don't understand what“recession”，“negative economic growth”and“subprime mortgage crisis(次贷危机)”actually mean.And you probably don't spend your days watching the ups and downs of the stock market.
It's safe to say that most teens don't know much about the economy except for one thing：it's bad.But just how exactly is the economy affecting teens?
“The single largest thing I have noticed is the recession's ability to affect my college choice，”said Heather Richars from Downey High School in California，US.
“With the economic situation the way it is，I have thought less about going to a private or out?of?state university，and more about public schools in California，mainly because of the price of tuition，”said Richars.“I had been a fan of attending a private school up until this year.”
The economy cuts into other areas of teenagers' lives，too.
Joey Camarda，a student at Modesto High School in California，who works at an ice cream store，said，“Probably due to the economy，I have been getting less hours at my job，and because of that，I am not getting enough money to help pay for college.”
Tara Mooney，a senior at Beyer High School，has also begun to notice that money is tight.
“Things are getting expensive，”she said.“When it comes to applying for colleges and wanting to go on senior trips，I have to pick and choose instead of doing it all.”
1．The purpose of writing the passage is mainly to tell us ________.
A．the economic recession has had a big impact on teens' work，life and study
B．teenagers are now having difficulty in deciding which colleges to apply for
C．teenagers don't know much about the economic recession
D．teenagers are considering giving up their senior trips to save money
2．Because of the bad economic situation，Heather Richars will most probably ________.
A．go to a private university
B．attend an out?of?state college
C．attend a public college in California
D．find a good university as he planned
3．How has Joey Camarda found the recession affects him?
A．He has to find more part?time jobs.
B．He has to help his mother do more chores.
C．He has found that he had more time to study.
D．His plan to pay for college will be hard to realize.
4．What can we conclude from the passage?
A．Parents punish their teens by giving them less money.
B．Most teens understand what negative economic growth means.
C．Teenagers are finding it harder to do what they want than before.
D．Teenagers have realized the importance of managing their own money.
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For thousands of millions of years the moon has been going round the earth. At that time, the moon was the 36 satellite(卫星)of the earth. Today, 37 , the earth has many other satellites. All of them are 38 by man. These man-made satellites are very much smaller than the moon. However, some of them will still be going 39 the earth thousands of years from now.
Man-made satellites don’t 40 because they are going too fast to do so. As they speed along, they 41 to go straight off into space. They 42 out of the earth, or its gravity, which 43 them from doing this. As a result, they travel in an orbit(轨道)round the earth.
If a man-made satellite travels about at a certain height, it can keep going 44 round the earth, just like the moon. This is 45 it is above the atmosphere(大气), and there is nothing to 46 it down. If it travels 47 than that, it will be slowed down so much that it will 48 the earth.
Men have 49 spaceships to the moon and to the two 50 planets Mars(火星) and Venus(金星). By putting a camera on 51 the spaceship to the moon, men have been able to 52 photographs of the other side of the moon. This side is always 53 from us as the moon 54 the earth. The 55 were later transmitted by radio to the earth. They showed that the other side of the moon is very much the same as the side that turns towards us.
36. A. first B. second C. last D. only
37. A. then B. however C. though D. so
38. A. found B. discovered C. made D. sent
39. A. with B. round C. behind D. after
40. A. fall B. rise C. break D. stop
41. A. want B. wish C. hope D. tend
42. A. pull B. push C. take D. launch
43. A. protects B. keeps C. makes D. discourages
44. A. in and in B. on and on C. out and out D. up and up
45. A. because B. why C. whether D. when
46. A. hand B. force C. slow D. bring
47. A. higher B. longer C. more D. lower
48. A. leave away B. fall to C. go after D. knock over
49. A. gave B. offered C. sent D. drove
50. A. nearest B. smallest C. biggest D. closest
51. A. board B. right C. left D. top
52. A. form B. film C. catch D. take
53. A. far B. hidden C. different D. separated
54. A. leads B. obeys C. circles D. pursues
55. A. information B. letters C. sounds D. photos
查看习题详情和答案>>Number sense is not the ability to count. It is the ability to recognize a 1 in number. Human beings are born with this ability. 2 ，experiments show that many animals are, too. For example, many birds have good number sense. If a nest has four eggs and you remove one, the bird will not 3 . However, if you remove two, the bird 4 leaves. This means that the bird knows the 5 between two and three.
Another interesting experiment showed a bird's 6 number sense. A man was trying to take a photo of a crow(乌鸦)that had a nest in a tower, but the crow always left when she saw him coming. The bird did not 7 until the man left the tower. The man had an 8 .He took another man with him to the tower. One man left and the other stayed, but they did not 9 the bird. The crow stayed away until the second man left, too. The experiment was 10 with three men and then with four men. But the crow did not return to the nest until all the men were 11 .It was not until five men went into the tower and only four left that they were 12 able to fool the crow.
How good is a human's number sense? It's not very good. For example, babies about fourteen months old almost always notice if something is taken away from a 13 group. But when the number goes beyond three or four, the children are 14 fooled.
It seems that number sense is something we have in common with many animals in this world, and that our human 15 is not much better than a crow's.
1. A. rise B. pattern C. change D. trend
2. A. Importantly B. Surprisingly C. Disappointedly D. Fortunately
3. A. survive B. care C. hatch D. notice
4. A. generally B. sincerely C. casually D. deliberately
5．A. distance B. range C. different D. interval
6．A. amazing B. annoying C. satisfying D. disturbing
7. A. relax B. recover C. react D. return
8. A. appointment B. excuse C. idea D. explanation
9. A. fool B. hurt C. catch D. kill
10.A. repo B. repeated C. designed D. approved
11.A. confused B. gone C. tired D. drunk
12.A. gradually B. luckily C. strangely D. finally
13. A. single B. small C. local D. new
14. A. seldom B. temporarily C. merely D. often
15. A. sight B. nature C. ability D. belief
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