Rats eat our food or make it so dirty that it isn't fit for people at all. That's why people often kill them by laying down poison. After a day or two, they find the poison still there. The rats haven't touched it, even though it is near the food which they eat. People think they must be clever and cunning. Some scientists have been trying to find the best way to poison rats. They have watched to see just what a rat does day and night. They have found out that rats aren't so clever. They are just very shy.

　　Rats usually live in holes. They run from these holes to the places where they eat and drink. They have special paths on which they travel each time. So they know their paths quite well.

　　If anything new, such as stone or wood, is put in the path, the rats won't go near it at first as they are too frightened. It will take them many days to get over the fear. They are also frightened to go near a place that they know, where something has been taken away. If a path goes around a rock, the rats follow the same path around the rock each time. If the rock is taken away, they will still run round the place where the rock was! They won't cross the empty place, which is now open to them, even though it would be quicker.

　　Rats will always keep away from anything unusual to them. That's why they won't eat poison on the first or second night. They usually won't go anywhere near it for about four days until they get used to being there. Even then they only eat a little at a time.

　　If people want to kill rats with poison, all they have to do is to leave it out for a few days. Once the rats have got used to it, they will eat it and die.

　　1．This passage mainly tells us

　　　　A. how a rat destroys our food

　　　　B. how to poison a rat

　　　　C. what's a rat's habit

　　　　D. poisoning a rat is not easy

　　2．How does the writer feel about rats?

　　　　A. They are clever and cunning.

　　　　B. They are the most dangerous enemy.

　　　　C. They are smart and shy.

　　　　D. It's easy for them to get close to an unknown object.

　　3．________ rats have special paths to travel each time.

　　　　A. Because they live in holes most of the time

　　　　B. To find more food to eat and water to drink

　　　　C. In order not to eat anything poisonous

　　　　D. To protect themselves

　　4．If you want to kill a rat, ________.

　　　　A. you should make it get used to the poison

　　　　B. you should drive it out of the hole

　　　　C. you should place a rock on the path along which it runs

　　　　D. you should make it get over the fear to cross the empty place

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

Much meaning can be conveyed with our eyes, so it is often said that eyes can speak.

Do you have such kind of 　36 ? In a bus you may look at a 　37 , but not too long. And if he is 　38 that he is being stared at, he may feel 　39 .

The same is true in 　40 life. If you are looked at for more than 　41 ,you will look at yourself up and down, to see if there is 42 wrong with you. If nothing goes wrong, you will feel angry toward other’s 　43 at you that way.

Looking too long at someone may seem to be rude and 　44 . But things are different when it 45 to stare at the opposite sex. If a man glances at a woman for more than ten seconds and 　46 to avert (移开) his gaze, his intentions are 　47 , that is , he wishes to attract her attention, to make her understand that he is 　48　 her.

49 , the normal eye contact for two people 　50　 in a conversation is that the speaker will only look at the listener 　51 , in order to make sure that the listener does pay attention to what the former is speaking about, to tell him that he is attentive. If a speaker looks at you continuously when speaking, 　52 he tries to dominate(控制) you, you will feel embarrassing.

In fact, continuous eye contact is confined to 　53 only, who will enjoy looking at each other tenderly for a long time, to show affection that 　54 cannot express.

Evidently, eye contact should be done according to relationship between two people and the specific 　55 .

36. A. experience　 B. thought　　　　　　 C. feeling　 　　　　　　 D. attitude

37. A. conductor　 　　　　　　 B. driver　　　　　 C. tourist　 　　　　　　 D. stranger

38. A. looking 　　　　　　 B. sensing　　　　 C. telling　　　　　 D. deciding

39. A. interested　　 　　　　　　 B. stupid　　　　　 C. uncomfortable　　　　 D. angry

40. A. social　　　　　 B daily　　　　 　　　　　　　 C. family 　　　　　　 D. school

41. A. friendly　　　 B. reliable　　　　　　 C. special　 　　　　　　 D. necessary

42. A. anything　　　　　　 B. somewhere 　　　　　　　 C. nothing　　　 D. anywhere

43. A. interest　　　 B. stare　　　　　　　　 C. appreciation D. notice

44. A. attentive　　　 　　　　　　 B. positive　　　　 C. aggressive　　 　　　　　　 D. active

45. A. comes　　　　 B. hopes 　　　　　　　 C. tries　　　　　 D. seems

46. A. starts　　　　　 B. refuses　　　 　　　　　　　C. manages　　　　　 D. aims

47. A. dirty　　　　　 B. unhealthy　　　　　 C. obvious　　　　 D. unfair

48. A. admiring　　　　　　 B. enjoying　　　　　 C. cheating　　　　 D. selecting

49 A. Therefore　　　　　　 B. Otherwise　　　　 C. Altogether　　　　　　 D. However

50. A. engaged　　　　　　 B. attracted　　 　　　　　　　C. trapped　　 　　　　　　 D. invited

51. A. all the time　 B. from time to time 　　　　 C. all the way　 　 　　　　　D. back and forth

52. A. in case　　　　 B. as if　　　　　　　　 C. even though　　　　 D. so that

53. A. mothers　　　　　　 B. children　　　　　　 C. lovers　　　　　 D. teachers

54. A. looks　　　　　 B. eyes　　　　　　　　 C. smiles　　 　　　　　　　 D. words

55. A. situation B. circumstance　　 C. environment　　　　　　 D. condition

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

　　If you have to miss one meal day（or if you want to do so），which meal will cause you fewest health problems if you don't eat it？ lf they have to make a decision of this type，most people（especially dieters or very busy people）will choose to skip breakfast．

　　However，many experts in the field of health consider breakfast（the meal which “breaks”your“fast”which started the night before）to be the most important meal of the day．If we eat a good breakfast，they say，we will have the energy and nutrients we need to begin our working day with vigor and hopefully with good humor．Nevertheless，many people skip breakfast or substitute a donut and a cup of coffee for a well-balanced meal．What hap-pens if we ignore the importance of breakfast？

　　One recent study conducted in the United States tested a large number of people．Participants included both males and females who ranged in age from 12 to 83．During the experiment，these people were given a variety of breakfasts，and sometimes，they had to skip breakfast completely．Special tests，including blood tests and endurance tests，were set up to analyze how well the participants'bodies functioned when they had eaten a certain kind of breakfast．

　　The results showed that if a person eats an adequate breakfast，he or she will work more efficiently and more productively than if he or she skips breakfast or eats a very poor breakfast．This fact appears to be especially true if a person's work involves mental activity．The study showed that if schoolchildren eat fruit，eggs，bread，and milk before going to school，they will learn more quickly and will be able to concentrate on their lesson for a longer period of time than if their breakfast diet is inadequate．

　　The study also showed that，contrary to what many people believe，if you skip break-fast，you will not lose weight．This is because people become so hungry if they skip breakfast that they eat too much for lunch and end up gaining weight instead of losing．So remember，if you are on a diet，skipping breakfast will not help you．You will probably lose more weight if you reduce your other meals．

1．According to the passage，if people must miss one meal a day，most of them would skip________．

[　　]

2．In many experts'eyes in the field of health，which of the following is the most important meal of the day？

[　　]

3．From the recent study，we can find________．

[　　]

A．if a person skips breakfast or eats a very poor breakfast，he or she will work more efficiently and more productively

B．if a person eats an adequate breakfast，he or she will gain weight

C．if a person's work involves mental activity eats a rich breakfast，he or she will work efficiently

D．if a child doesn't eat breakfast，he will learn more quickly

4．Which of the following is true？

[　　]

A．If you skip breakfast，you will work with energy

B．If you skip breakfast，you will lose weight

C．Breakfast is the most important meal of the day

D．If you are off on a diet，you can skip breakfast