Bacteria(细菌) are extremely small living things. While we measure our own sizes in inches or centimeters, bacterial size is measured in micron. One micron is a thousandth of a millimeter; a pinhead is about a millimeter across, Rod-shaped bacteria are usually from two to four microns long, while rounded ones are generally one micron across. Thus, if you magnified a rounded bacterium a thousand times, it would be just the size of a pinhead, while a grown-up human enlarged by the same amount would be over a mile tall.
Even with an ordinary microscope(显微镜), you must look closely to see bacteria. Using a magnification of 100 times, one can hardly find bacteria. Nor can one make out anything of their structure(结构), of course. Only by using special colors, can one see that some bacteria have wavy-looking “hairs” called flagella. Others have only one flagellum. The flagella move round a central point, pushing the bacteria through the water. Many bacteria lack flagella and cannot move about by their own power, while others can move along over surface by some little-understood “machinery”.
From the bacterial point of view, the world is a very different place from what it is to humans. To a bacterium, water is as thick as molasses(糖浆) is to us. Bacteria are so small that they are affected by the movements of the chemical molecules(分子) around them. Bacteria under microscopes, even those with no flagella, often jump up and down in the water. This is because they knock with the water molecules and are pushed this way and that.
36. The underlined word magnified means _______________.
A. enlarged                                                      B. widened                  
C. killed                                                          D. caught
37. We know from the passage that _______________ is the smallest.
A. a pinhead                                            B. a rounded bacterium 
C. a microscope                                        D. a rod-shaped bacterium
38. The relationship between a bacterium and its flagella is most nearly like which of the following?
A. A rider jumping on a horse back 
B. A ball being hit by a bet
C. A boat powered by a motor    
D. A door closed by wind
39. Why does the writer compares water to molasses in the third paragraph?
A. To tell us how difficult it is for bacteria to move through water.
B. To suggest that bacteria are fond of different liquids.
C. To show different chemicals are of different structures.
D. To show that bacteria are the best swimmers.
40. Which of the following is the main topic of the passage?
A. The characteristic (特点) of bacteria.      
B. How bacteria reproduce.
C. The various parts of a bacterium’s body    
D. How bacteria cause diseases.            

________ the reason, it is for sure that yawning can be passed from person to person.

A. Whatever  B. Wherever  C. Whichever  D. However

Do you sometimes argue about what seems to you to be a simple fact ? Do you argue whether it’s cold outdoors or whether the car in front of you is going faster than the speed limit ?

If you get into such arguments, try to think about the story about the six blind men and the elephant．The first blind man who felt the elephant’s trunk said it was like a snake．The second who felt the elephant’s side said it was like a wall, while the third said it was like a spear as he touched the animal’s tusk．The fourth, who had hold of the elephant’s tail insisted that it was like a rope．The fifth man said it looked like a tree as he put his arm around one the elephant’s legs.

The sixth, who was tall and got hold of the elephant’s ears, said it was like a huge fan.

Each man’s idea of the animal came from his own experience．So if someone disagrees with you about a “simple fact”, it’s often because his experience in the matter is different from yours.

To see how hard it is for even one person to make up his mind about a “simple fact”, try this simple experiment．Get three large bowls．Put ice water in one．Put hot water in the second．Put lukewarm water in the third．Now put your left hand in the ice water．Put your right hand in the hot water．After thirty seconds, put both hands in the lukewarm water．Your right hand will tell you the water is cold．Your left hand will tell you it’s hot !

What makes people think about simple facts differently ?

     A．The fact that simple facts differ from one another

     B．The fact that people have different experience in the same simple fact

     C．The fact that people often disagree with one another

     D．The fact that it’s hard to make up one’s mind about simple facts

The writer’s advice is _______________.

     A．We should never think about simple facts

     B．We should never judge something with a one-sided view

     C．We should not agree about simple facts

     D．We must learn from the six blind men

After reading the last paragraph, we may think of __________.

     A．Newton’s law                    B．Galileo’s theory of falling objects

     C．Einstein’s theory of relativity       D．Marx’s On Capital (资本)

Young Jack moved to a new house. When entering his new bedroom, he saw that it was full of toys but it was tidy. That day he played all he liked, but went to bed without tidying up.
The next morning, when Jack got up, he found all the toys had been put back in their proper places. He was sure that no one had entered his bedroom, but the boy didn’t pay much attention to it. The exact same thing happened that day, and the next day. But on the fourth day when he went to get his favourite toy, the toy jumped out of his hands and said, “I don’t want to play with you!”
Jack felt surprised, but the same happened with every toy he touched. Finally, one toy said to him:
“We don’t want to play with you. You always leave us so far away from our proper places. You don’t know how arduous it is for us to climb back up onto the shelves, or jump into the box. We feel most uncomfortable and unhappy. You don’t know how uncomfortable and cold the floor is! We don’t play with you any more if you don’t promise to leave us in our proper places before you go to bed.”
Jack remembered how comfortable he felt in his bed and how bad he felt when he had once slept in a chair. He realized how badly he had treated his friends, the toys. He asked for their forgiveness(原谅)， and from that day on he always put his toys nicely in their proper places before he got into bed.
【小题1】when Jack moved into his bedroom,           .

Shopping for clothes is not the same experience for a man as it is for a woman. A man goes shopping because he needs something. His purpose is settled and decided in advance. He knows what he wants, and his objective is to find it and buy it; the price is a secondary consideration. All men simply walk into a shop and ask the assistant for what they want. If the shop has it in stock, the salesman promptly produces it, and the business of trying it on follows at once. All being well, the deal can be and often is completed in less than five minutes, with hardly any chat and to everyone's satisfaction.

For a man, slight problems may begin when the shop does not have what he wants, or does not have exactly what he wants. In that case the salesman, as the name implies, tries to sell the customer something else, he offers the nearest he can to the article required. No good salesman brings out such a substitute impolitely; he does so with skill: “I know this jacket is not the style you want, sir, but would you like to try it for size? It happens to be the color you mentioned.” Few men have patience with this treatment, and the usual response is: “This is the right color and may be the right size, but I should be wasting my time and yours by trying it on.”    

Now how does a woman go about buying clothes? In almost every respect she does so in the opposite way. Her shopping is not often based on need. She has never fully made up her mind what she wants, and she is only “having a look round”. She is always open to persuasion; indeed she sets great store by what the saleswoman tells her, even by what companions tell her. She will try on any number of things. Uppermost in her mind is the thought of finding something that everyone thinks suits her. Contrary to a lot of jokes, most women have an excellent sense of value when they buy clothes. They are always on the lockout for the unexpected bargain. Faced with a roomful of dresses, a woman may easily spend an hour going from one rail to another, to and fro, often retracing her steps, before selecting the dresses she wants to try on. It is a laborious process, but apparently an enjoyable one. Most dress shops provide chairs for the waiting husbands.

1.The passage mainly talks about ________.

A. differences between men and women shoppers

B. A man goes shopping because he needs something

C. How women go about buying clothes.

D. Women are better at shopping than men

2.The underlined sentence “the price is a secondary consideration” in the first paragraph means when a man is shopping ________.

A. he buys good quality things, so long as they are not too dear

B. he buys whatever he likes without considering its value

C. he does not mind how much he has to pay for the right things

D. he often buy things without giving the matter proper thought.

3.What does a man do when he can not get exactly what he wants?

A. He buys a similar thing because of the color he wants.

B. He usually does not buy anything.

C. At least two of his requirements must be met before he buys.

D. So long as the style is right, he buys the thing.

4.What is the most obvious difference between men and women shoppers?

A. Men do not try clothes on in a shop while women do.

B. Women bargain for their clothes, but men do not.

C. The time they take over buying clothes.

D. Men go shopping based on need, but women never.