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

EVERY morning in the school dormitory, I am woken up by the morning bell along with the crow (啼叫) of the two peacocks, which are the most special inhabitants in our campus.

When I first heard about them, I thought it was so 1　 　 to have two useless peacocks in a high school　 　 2　 　 I even planned a letter to the president　 　　3　 　 him to send them to the zoo. Yet after I paid them my first　 　　4　 , which was a week later, I 　5　 changed my mind.

That was my first Friday in school, 　　6 　 was filled by books and tests. My friend enthusiastically 　7　 me to the back garden of our school to visit the peacocks. I unwillingly followed her through the 　8　 and unruly (混乱的) flood of busy students, and came into the quiet little garden.

The 　　9 silence and special fragrance of water and grass quickly entered (沁入) my 　　10 heart, and brought me some fresh air. I walked to the cage of the peacocks and saw the two attractive creatures. "They are so　 11　 ."

Those simple words popped into my mind　 　　12　 　 I had seen peacocks many times in the zoo. I thought about the　 　13　 　 of several famous poets and artists while 　　14　 them peanuts and ice cream, and I felt a kind of　 　 15　 　 of nature and study in my mind.

Men are beings instead of　 　16　 . Working like machines will change our pristine (质朴的) minds and healthy hearts. There was　 　　17　 　 reporting that a student at Fudan University 18　 30 lost cats. I believe he did not graduate from our school, where everyone can hear the crow from the heavenly animals every morning.

I think nowadays, high school students need to go out to　 　　19　 　 our bodies and minds, 　　20　 　 crouching down behind the piles of text books.

Look at the gold forsythia (连翘), that's the spring calling.

1. A. curious　　 B. ridiculous　　 C. humorous　　　 D. harmonious　　

2. A. and　　　　 B. but　　　　　　 C. that　　　　　 D. so　　

3. A. advising　　 B. preventing　　 C. persuading　　 D. warning　

4. A. attention　 B. money　　　　　 C. respect　　　　 D. visit　　　

5. A. confidentially 　B. thoroughly　　　 　C. definitely　　　　　 D. approximately　

6. A. that　　　　 B. it　　　　　　 C. what　　　　　 D. which　

7. A. pulled　　　 B. dragged　　　　 C. drew　　　　　 D. led　

8. A. quiet　　　 B. active　　　　 C. noisy　　　　　 D. abnormal　

9. A. complete　　 B. unusual　　　　 C. peaceful　　　 D. grateful　

10. A. excited　　 B. interested　　 C. inspired　　　 D. tired　

11. A. beautiful　 B. clever　　　　 C. dirty　　　　　 D. tiresome　

12. A. though　　 B. because　　　　 C. since　　　　　 D. therefore　

13. A. words　　　 B. books　　　　　 C. works　　　　　 D. poems　

14. A. feeding　　　 B. providing　　　　　 C. supplying　　　　　 D. throwing　

15. A. mixture　　 B. connection　　 C. relation　　　 D. combination　

16. A. animals　　 B. machines　　　 C. natures　　　　 D. plants　　

17. A. notice　　 B. news　　　　　 C. information　　 D. journalist　　

18. A. fled　　　 B. bought　　　　 C. rescued　　　　 D. killed　

19. A. promote　　 B. extend　　　　 C. stretch　　　　 D. spread　

20. A. in spite of B. instead of　　 C. because of　　 D. in case of　

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