Mice will run out of the field for places to hide.A．lookedB．lookingC．looksD．look 题目和参考答案——青夏教育精英家教网—

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

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

At one time or another most farmers have problems with mice. This is especially true for grain farmers. Mice eat a lot of grain. They also carry diseases(疾病), which people can get from eating or touching grain the mice have made dirty. Farmers can use special grain storage buildings or they can kill the mice. However, both methods can be costly. Farmers must buy materials to build the special grain storage buildings or chemical poisons to kill the mice．

Here is a way to kill mice without spending a lot of money. It is a simple but effective kind of mouse trap. The method is first used by some farmers in the west African country of Mali. An agricultural expert in Mali reported about the Mali mouse trap in a magazine. The expert reported that his gardener caught 150 mice in just one night. The gardener used four traps. The trap is easy to make. First, remove the top from a 20 liter metal or plastic container(容器). Put it in a hole in the ground. The top edge of the container should be the level with the surface of the ground. Fill the container with water to within eight centimeters of the top. Add tiny pieces of grain wastes. They should float on the water. Also put some wastes on the ground near the trap. During the night, mice will come out to eat the grain wastes. They will fall into the container and drown. Replace the food in the trap every night．

1.According to the passage，_____ used the mouse trap first.

A. an agricultural expert in the west Africa

B. farmers in the United States

C. all American gardener

D. farmers in Mali

2.What does the passage mainly tell us?

A. A simple and effective method used by farmers to kill mice

B.How to kill mice

C. Methods used by farmers to kill mice

D. Farmers have problems with mice

3. Which of the following can’t protect grain from being eaten by mice?

A．A special grain storage building

B．Chemical poisons

C．A mouse trap

D．A hole in the ground

4. Which is probably the trap mentioned in the passage?

完形填空（共20小题；每小题1.5分，满分30分）

阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中，选出最佳选项。

A large cat arrived at a farm where many mice lived. None of them dared go outside for fear of being 36 by the cat.

The mice decided to hold a 37 to find a way of stopping themselves from being in 38 . One day, when the cat was out, mice of all ages 39 into the meeting room.

“Let’s build a big trap,” one mouse 40 . When this idea was 41 , another said, “What about poisoning(毒死) her?” But 42 knew where to buy the poison. One young mouse, whose mother had become the cat’s food, 43 said, “Let’s cut her teeth, so she can do no more harm.” But the meeting did not accept his 44 .

At last, one mouse, 45 than the rest, jumped onto a table. Waving a bell, he called for 46 , “Be quiet! We’ll tie this bell to the cat’s tail, so we’ll always know 47 she is! We’ll have 48 to escape, and the slower and weaker mice will hear her coming and be able to 49 !” Hearing the words, everyone got 50 and they congratulated him on his good idea.

“We’ll tie it so tightly that it will never 51 !”

“She’ll never be able to walk 52 again! Why, the other day, she suddenly appeared right in front of me! Just imagine…”

However, the wise mouse said, “We must 53 who is going to tie it on her tail.” There was not a sound in the room. Nobody was 54 enough to put the plan into action. The meeting ended without any decision being made.

It’s often very 55 to have bright ideas, but putting them into practice is a more difficult matter.

1.A. trained B. taught C. caught D. invited

2.A. party B. test C. game D. meeting

3.A. return B. danger C. fact D. need

4.A. rushed B. swam C. flew D. stepped

5.A. questioned B. explained C. suggested D. answered

6.A. supported B. discussed C. accepted D. refused

7.A. everybody B. nobody C. somebody D. anybody

8.A. angrily B. happily C. carefully D. slowly

9.A. present B. reason C. idea D. excuse

10.A. younger B. longer C. stronger D. wiser

11.A. pleasure B. silence C. help D. information

12.A. where B. what C. how D. who

13.A. experience B. power C. time D. space

14.A. shout B. watch C. stay D. hide

15.A. worried B. excited C. surprised D. tired

16.A. drop off B. turn up C. get up D. put off

17.A. gladly B. quickly C. quietly D. directly

18.A. believe B. learn C. imagine D. decide

19.A. honest B. brave C. rich D. old

20.A. easy B. difficult C. strange D. important

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