Most of us think that when we step under a shower we’re getting clean．We are, but we’re also giving a home to lots of tiny little creatures we didn’t even know about．
A showerhead carries thousands of bacteria (细菌) called Mycobacterium．These can cause problems like coughs and tiredness, and a general feeling of poorliness (身体不舒服)．When you turn on the water, the bacteria go from the showerhead onto and into your body．
This is a finding of Norman R．Pace and his team at the University of Colorado, in the US．The scientists investigated bacteria in all kinds of human environment, including showers．
Pace's team looked at 45 showerheads in nine American cities．They discovered that 30 percent of them had large amounts of flying Mycobacterium．
But Pace said that they pose few threats to the health．Only those with a frail (脆弱的) immune (免疫的) system might need to worry．
He told the New York Times that the bactertia are not as unpleasant as might be thought．He said that having a shower is no more dangerous than anything else we do in the morning．
But for those who feel sick about the idea of all those microorganisms (微生物), he had some advice．
Let the water run for 30 seconds before getting into the shower．Why? The number of bacteria is smaller than when the water is just turned on．If that seems like a waste of water, he added that you could also change your showerhead every few months．
But Pace had good news too．He has also been testing the air in US subways．Apart from iron particles (粒子), which are ground off the track by the wheels of trains, subway air is fresh．The reason is that a train’s movement pumps fresh outdoor air into the tunnels(隧道)．
Pace explained that he wanted to understand the natural microbial(微生物的) environments of public places．This kind of knowledge might help detect the microbes to be used in a bioterrorist (生物恐怖分子) attack．
49．According to the finding of Norman R．Pace, after taking a shower, we might ______．
A．get much dirtier B．be covered by bacteria
C．get a frail immune system D．catch a cough or feel tired
50．Pace’s research into showers shows that ______．
A．there is no reason to fear microorganism
B．shower water contains much less bacteria after being left to run for 30 second
C．having a shower in the morning is more dangerous than at other time
D．of 45 showerheads surveyed in nine cities, 30 carried large amounts of Mycobacterium
51．According to the research of Pace’s team, which of the following contributes to fresh air in US subways?
A．Train wheels． B．Iron particles．
C．The movement of the trains． D．Air conditioners on the trains．
52．The word “detect” in the last paragraph probably means “______”．
A．to discover B．to protect C．to make D．to prevent
One of the most striking findings of a recent questionnaire in the UK is that of the people interviewed, one in two believes that it is becoming more difficult to meet someone to start a family with.
Why are many people finding it increasingly difficult to start and keep close relationships? Does modern life really make it harder to fall in love? Or are we making it harder for ourselves?
It is certainly the case today that nowadays couples benefit in different ways from relationships. Women no longer rely upon partners for economic security or status. A man doesn’t expect his wife to be in sole (唯一的) charge of running his household and raising his children.
But perhaps the knowledge that we can live perfectly well without a partnership means that it takes much more to persuade people to abandon their independence.
In theory, finding a partner should be much simpler these days. Only a few generations ago，your choice of soul mate was limited by geography, social convention and family tradition. Although it was never clear, many marriages were essentially arranged. Now those barriers have been broken down. You can approach a builder or a brain surgeon in any bar in any city on any given evening. When the world is your oyster（牡蛎）, you surely have a better chance of finding a pearl.
But it seems that the traditions have been replaced by an even tighter restriction：the limitation of choice. The expectations of partners are made greater to an unmanageable degree：good looks, impressive salary, kind to grandmother, and so on. There is no room for error in the first impression.
We think that a relationship can be perfect. If it isn’t，it is intended to be thrown away. We work to protect ourselves against future heartache and don’t put in the hard emotional labor needed to build a strong relationship. Twelve-hour work at the office makes relaxed after-hours dating(约会) difficult. The cost of housing and child-raising creates pressure to have a stable(稳定的) income and career before a life partnership. Nowadays, in a family, _________.
| A．men begin to depend on women |
| B．couples share the burdens |
| C．men are responsible for housework |
| D．couples can’t get along together |
People don’t want to give up their independence because______.
| A．they can’t bear arranged marriages |
| B．they want to have more choices |
| C．they don’t want to follow traditions |
| D．they think they can live happily alone |
People don’t bother to date because_______.
| A．it requires luck to build a strong relationship |
| B．it takes them too much energy to work |
| C．it needs faith to have a life partnership |
| D．it causes mental problems to find a life partner |
Which of the following can best describe the main idea of the passage?
| A．The expectations of partners and financial pressure may prevent a relationship. |
| B．People should spend more money on marriage today. |
| C．Independence is much more important than love. |
| D．Even a perfect marriage can be given up for the sake of independence. |
There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do.
In the ancient world, as is today, most boys played with some kinds of toys and most girls with another. In societies where social roles are rigidly(严格地) determined, boys pattern their play after the activities of their fathers and girls are being prepared, even in play, to step into the roles and responsibilities of the adult world.
What is remarkable about the history of toys is not so much how they changed over the centuries but how much they have remained the same. The changes have been mostly in terms of craftsmanship, mechanics, and technology. It is the universality(普遍性) of toys with regard to their development in all parts of the world and their persistence to the present that is amazing. In Egypt, America, China, Japan and among the Arctic people, generally the same kinds of toys appeared. Differences depended on local customs and way of life because toys imitate their surrounding. Nearly every civilization had dolls, little weapons, toy soldiers, tiny animals and vehicles.
Because toys can be generally regarded as a kind of art form, they have not been subject to technological leaps that characterize(具有…的特征) inventions for adult use. The progress from the wheel to the cart to the automobile is a direct line of ways up. The progress from a rattle(拨浪鼓) used by a baby in 3,000 BC to one used by an infant today, however, is not characterized by inventiveness. Each rattle is the product of the artistic tastes of the time and subject to the limitations of available materials. The reason why the toys most boys play with are different from those that girls play with is that______.
| A．boys like to play with their fathers while girl with their mothers |
| B．they like challenging activities |
| C．most boys would like to follow their fathers' professions |
| D．their social roles are rigidly determined |
One aspect of "the universality of toys" lies in the fact that________.
| A．the basic characteristics of toys are the same all over the world |
| B．technological advances have greatly improved the durability of toys |
| C．the exploration of the universe has led to the creation of new kinds of toys |
| D．the improvement of craftsmanship in making toys depends on the efforts of universities |
Regarded as a kind of art form, toys________.
| A．reflect the pace of social progress |
| B．changes a lot as time goes by |
| C．are not characterized by technological progress |
| D．also appeal greatly to adults |
The author uses the example of a rattle to show that________.
| A．it often takes a long time to introduce new technology into toy-making |
| B．even the simplest toys can reflect the progress of technology |
| C．even a simple toy can mirror the artistic tastes of the time |
| D．in toy-making there is a continuity in the use of materials |
When I lived in Spain，some Spanish friends of mine decided to visit England by car，before they left，they asked me about how to find accommodation（住所）．I suggested that they should stay at “bed and breakfast” houses，because this kind of accommodation gives a foreign visitor a good chance to speak English with the family．My friends listened to my advice，but they came back with some funny stories．
“We didn't stay at bed and breakfast houses，”they said．“Because we found that most families were away on holiday．”
I thought this was strange．Finally I understood what had happened
My friends spoke little English，and they thought “VACANCIES” meant “holidays” because Spanish word for “holiday” is “vacaciones”．So they did not go to houses where the sign outside said “VACANCIES”，which in English meant there are free rooms．Then my friends went to houses where the sign said “NO VACANCIES”，because they thought this meant the people who owned the house were not away on holiday．But they found that these houses were all full．As a result，they stayed at hotels！
We laughed about this and about mistakes my friends made in reading other signs．In Spanish，a word very similar to “DIVERSION” means fun．In English it means that workman is repairing the road，and that you must take a different road when my friends saw the word “DIVERSION” on a road sign，they thought they were going to have fun．Instead， the road ended in a large hole．
English people have problems too when they learn foreign languages．Once in Paris，when someone offered me some more coffee，I said “Thank you” in French．I meant that I would like some more．However，to my surprise the coffee pot was taken away！ Later I found out that “Thank you” in French means “No，thank you”．My Spanish friends wanted advice about _________．
| A．learning English |
| B．finding places to stay in England |
| C．driving their car on English roads |
| D．going to England by car |
I suggested that they stay at bed and breakfast houses because ________.
| A．they would be able to practise their English |
| B．it would be much cheaper than staying in hotels |
| C．it would be convenient for them to have dinner |
| D．there would be no problem about finding accommodation |
“No vacancies” in English means ____．
| A．no free rooms | B．free rooms |
| C．not away on holiday | D．holidays |
I was surprised when the coffee pot was taken away because I _______．
| A．hadn't finished drinking my coffee |
| B．was expecting another cup of coffee |
| C．meant that I didn't want any more |
| D．was never misunderstood |
Many facts suggest that children are overweight and the situation is getting worse, according to the doctors. I feel there are a number of reasons for this.
Some people blame the fact that we are surrounded by shops selling unhealthy, fatty foods, such as fried chicken and ice cream, at low prices. This has turned out a whole generation of grown-ups who seldom cook a meal for themselves. If there were fewer of these restaurants, then probably children would buy less take-away food.
Others blame parents for allowing their children to become overweight. I agree with this, because good eating habits begin early in life, long before children start to visit fast food shops. If children are given fried chicken and chocolate rather than healthy food, or are always allowed to choose what they eat, they will go for sweet and salty foods every time, and this will carry on throughout their lives.
There is a third reason for this situation. Children these days take very little exercise. They do not walk to school. When they get home, they sit in front of the television or their computers and play computer games. Not only is this an unhealthy pastime(消遣), it also gives them time to eat more unhealthy food. What they need is to go outside and play active games or sports.
The above are the main reasons for this problem, and therefore we have to encourage young people to be more active, as well as steering them away from fast food shops and bad eating habits.According to the text, what kind of children may eat more unhealthy food?
| A．Those who often do sports. |
| B．Those who often watch television. |
| C．Those who often have meals at home. |
| D．Those who often walk to school. |
The author thinks that children are becoming overweight because ______.
| A．they can't choose what to eat |
| B．they are too busy to go out and play |
| C．their parents often cook meals for them |
| D．there are too many fast food shops around |
The word "steering" underlined in the last sentence most probably means ______.
| A．forcing | B．guiding | C．driving | D．moving |
The main purpose of the text is to ______.
| A．tell a story | B．provide facts |
| C．give advice | D．compare opinions |
Remembering names is an important social skill. Here are some ways to master it.
●Recite and repeat in conversation.
When you hear a person’s name, repeat it. Immediately say it to yourself several times without moving your lips. You could also repeat the name in a way that does not sound forced or artificial.
●Ask the other person to recite and repeat.
You can let other people help you remember their names. After you’ve been introduced to someone, ask that person to spell the name and pronounce it correctly for you. Most people will be pleased by the effort you’re making to learn their names.
●Admit you don’t know.
Admitting that you can’t remember someone’s name can actually make people relaxed. Most of them will feel sympathy if you say. “I’m working to remember names better. Yours is right on the tip of my tongue. What is it again?”
●Use associations.
Link each person you meet with one thing you find interesting or unusual. For example, you could make a mental note: “Vicki Cheng－tall, black hair.” To reinforce your associations, write them on a small card as soon as possible.
●Limit the number of new names you learn at one time.
When meeting a group of people, concentrate on remembering just two or three names. Free yourself from remembering every one. Few of the people in mass introductions expect you to remember their names. Another way is to limit yourself to learning first names. Last names can come later.
●Go early.
Consider going early to clubs, parties and classes. Sometime just a few people show up on time. There’re fewer names for you to remember. And as more people arrive, you can hear them being introduced to other an automatic review for you.If you can’t remember someone’s name, you may ________.
| A．tell him the truth |
| B．tell him a white lie |
| C．ask him for pity |
| D．ask others to help you |
When you meet a group of people, it is better to remember ________.
| A．all their games |
| B．a couple of names first |
| C．just their last names |
| D．as many names as possible |
What does the text mainly tell us?
| A．Tips on an important social skill. |
| B．Importance of attending parties. |
| C．How to make use of associations. |
| D．How to recite and repeat names. |