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For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably 21 sing their way to any concert, but researchers in the United States have found 22 that mice do, 23 , sing.
Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 24 special equipment.
To find out whether mice put such sounds together in song-like 25 , the researchers recorded the sounds of 1 mice. Using computer 26 , they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 27 song. But not all scientists are 28 _ that what the mice are doing is 29 singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 30 why the mice sing.
21. A. almost B. even C. never D. usually
22. A. coincidence B. evidence C. guidance D. instance
23. A. at once B. by means C. for example D. in fact
24. A. during B. inside C. through D. without
25. A. fashions B. instructions C. patterns D. styles
26. A. access B. printer C. screen D. software
27. A. call B. hear C. sing D. write
28. A. accustomed B. convinced C. involved D. qualified
29. A. actually B. obviously C. simply D. unlikely
30. A. figure out B. get about C. run across D. talk over
查看习题详情和答案>>For many parents , raising a teenager is like fighting a long war ,but years go by without any clear winner . Like a border conflict between neighboring countries ,the parent-teen war is about boundaries: Where is the line between what I control and what you do?
Both sides want peace ,but neither feels it has any power to stop the conflict . In part ,this is because neither is willing to admit .any responsibility for starting it . From the parents’ point of view, the only cause of their fight is their adolescents’ complete unreasonableness. And of course .the teens see it in exactly the same way , except oppositely . Both feel trapped
In this article. I’ll describe three no-win situations that commonly arise between teens and parents and then suggest some ways out of the trap. The first no-win situation is quarrels over unimportant things . Examples include the color of the teen’s hair, the cleanliness of the bedroom ,the preferred style of clothing , the child’s failure to eat a good breakfast before school ,or his tendency to sleep until noon on the weekends .Second ,blaming , the goal of a blaming battle is to make the other admit that his bad attitude is the reason why everything goes wrong . Third , needing to be right ,It doesn’t matter what the topic is –politics. The taws of physics ,or the proper way to break an egg –the point of these arguments is to prove that you are right and the other person is wrong .for both wish to be considered an authority --- someone who actually knows something --- and therefore to command respect. Unfortunately , as long as long as parents and teens continue to assume that they know more than the other ,they’ll continue to fight these battles forever and never make any real progress
55. Why does the author compare the parent—teen war to a border conflict?
A. both can continue for generations .
B. Both are about where to draw the line
C. Neither has any clear winner
D. Neither can be put to an end
56. What does the underlined part in Paragraph 2 mean?
A. The teens blame their parents for starting the conflict.
B. The teens agree with their parents on the cause of the conflict
C. The teens accuse their parents of misleading them
D. The teens tend to have a full understanding of their parents
57.Parents and teens want to be right because they want to ________.
A. give orders to the other
B. know more than the other
C. gain respect from the other
D .get the other to behave properly
58. What will the author most probably discuss in the paragraph that follows?
A. causes for the parent –teen conflicts
B. Examples of the parent –teen war.
C. Solutions for the parent –teen problems
D. Future of the parent-teen relationship
查看习题详情和答案>>For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably 1 sing their way to any concert, but researchers in the United States have found 2 that mice do, 3 , sing.
Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 4 special equipment.
To find out whether mice put such sounds together in song-like 5 , the researchers recorded the sounds of 1 mice. Using computer 6 , they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 7 song. But not all scientists are 8 _ that what the mice are doing is 9 singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 10 why the mice sing.
A. almost B. even C. never D. usually
A. coincidence B. evidence C. guidance D. instance
A. at once B. by means C. for example D. in fact
A. during B. inside C. through D. without
A. fashions B. instructions C. patterns D. styles
A. access B. printer C. screen D. software
A. call B. hear C. sing D. write
A. accustomed B. convinced C. involved D. qualified
A. actually B. obviously C. simply D. unlikely
A. figure out B. get about C. run across D. talk over
查看习题详情和答案>>For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably 21 sing their way to any concert, but researchers in the United States have found 22 that mice do, 23 , sing.
Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 24 special equipment.
To find out whether mice put such sounds together in song-like 25 , the researchers recorded the sounds of 1 mice. Using computer 26 , they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 27 song. But not all scientists are 28 _ that what the mice are doing is 29 singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 30 why the mice sing.
21. A. almost B. even C. never D. usually
22. A. coincidence B. evidence C. guidance D. instance
23. A. at once B. by means C. for example D. in fact
24. A. during B. inside C. through D. without
25. A. fashions B. instructions C. patterns D. styles
26. A. access B. printer C. screen D. software
27. A. call B. hear C. sing D. write
28. A. accustomed B. convinced C. involved D. qualified
29. A. actually B. obviously C. simply D. unlikely
30. A. figure out B. get about C. run across D. talk over
查看习题详情和答案>>For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably 21 sing their way to any concert, but researchers in the United States have found 22 that mice do, 23 , sing.
Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 24 special equipment.
To find out whether mice put such sounds together in song-like 25 , the researchers recorded the sounds of 1 mice. Using computer 26 , they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 27 song. But not all scientists are 28 _ that what the mice are doing is 29 singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 30 why the mice sing.
21. A. almost B. even C. never D. usually
22. A. coincidence B. evidence C. guidance D. instance
23. A. at once B. by means C. for example D. in fact
24. A. during B. inside C. through D. without
25. A. fashions B. instructions C. patterns D. styles
26. A. access B. printer C. screen D. software
27. A. call B. hear C. sing D. write
28. A. accustomed B. convinced C. involved D. qualified
29. A. actually B. obviously C. simply D. unlikely
30. A. figure out B. get about C. run across D. talk over
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