On October 12, 1989, some Chinese scientists were working at the computers to look for information they needed. Suddenly they saw a lot of very bright spots crossing the computers’ screens. At the same time, the computers were working much slower. To find out what was happening they stopped their work to check some parts of the computers. To their horror, they found out that most of their stored information was got rid of by computer viruses! Obviously all these computers had been infected (传染)by computer viruses.
It is said that the computer viruses were made by a group of young men fond of playing tricks. They all had excellent education. They created the viruses just to show their intelligence. These kinds of computer viruses are named Jerusalem Viruses. These viruses can stay in computers for a long time. When the time comes they will attack the computers by lowering the function, damaging their normal programs or even getting rid of all the information.
We now come to know that Jerusalem Viruses often attack computers on Fridays and that they are spreading to a lot of computers. Among the countries that suffered computer viruses last year are Britain, Australia Switzerland and the US. But till now, how to get rid of the terrible viruses remains a problem.
1.The group of young men created the viruses to _______.
A. damage the computers
B. test their ability
C. tell the world that they were intelligent
D. play a trick on operators of the computers
2.According to the passage, computer viruses seem to ______.
A. have been in nature for years B. exist in any computer
C. be difficult to get rid of at present D. be able to be got rid of in the near future
3.the most serious damage caused by the viruses is that _______.
A. the computer’s functions are lowered
B. the normal programs are damaged
C. all the information stored in the computers is gone
D. the computers infected by the viruses can no longer be used
4.According to the passage, which of the following is true?
A. last year four countries found their computers were infected by viruses
B. the viruses will come to a new computer after staying in the old one for some time
C. scientists are trying to find a way to get rid of the viruses
D. the Jerusalem Viruses are a great harm to human health
A rainfores(雨林)is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below 16℃.Rainforests have a great effect on the world environment because they can take in(吸收) heat from the sun and adjust (调节)the climate. Without the forest cover, these areas would reflect more heat into the atmosphere,warming the rest of the world .Losing the rainforests may also influence wind and rainfall patterns, potentially causing certain natural disasters(灾害) all over the world.
In the past hundred years, humans have begun destroying rainforests in search of three major resources (资源): land for crops, wood for paper and other products, land for raising farm animals. This action affects the environment as a whole. For example,a lot of carbon dioxide(二氧化碳)in the air comes from burning the rainforests. People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit(受益).
There are two main reasons for this. Firstly, when people cut down trees, generally they can only use the land for a year or two. Secondly, cutting large sections of rainforests may provide a good supply of wood right now, but in the long run (长远看)it actually reduces the world’ s wood supply.
Rainforests are often called the world’s drug store. More than 25% of the medicines we use today come from plants in rainforests. However, fewer than 1% of rainforest plants have been examined for their medical value. It is extremely likely that our best chance to cure diseases lies somewhere in (在于)the world’s shrinking rainforests...Rainforests can help to adjust the climate because they________.
| A.reflect(反射) more heat into the atmosphere |
| B.bring about high rainfall throughout the world |
| C.rarely cause the temperature to drop lower than 16℃ |
| D.reduce the effect of heat from the sun on the earth |
..What does the word “this” underlined in the third paragraph refer to?
| A.We will lose much more than we can gain. |
| B.Humans have begun destroying rainforests. |
| C.People have a strong desire for resources. |
| D.Much carbon dioxide comes from burning rainforests. |
.What might be the best title for the text?
| A.How to Save Rainforests | B.How to Protect Nature |
| C.Rainforests and the Environment | D.Rainforests and Medical Development |
Remembering names is an important social skill. Here are some ways to master it.
Recite and repeat in conversation(谈话,交往).
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(矫揉造作的,不自然的).
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(努力) 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(联络,联系).
Link(联系) 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 (加强) 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(集中精力) remembering just two or three names. Free yourself from remembering everyone. Few of the people in mass introductions expect you to remember their names. Another way is to limit yourself to learning just first names. Last names can come later.
Go early.
Consider going early to conferences(会议), parties and classes. Sometimes just a few people show up(到场) on time. That’s fewer names for you to remember. And as more people arrive, you can hear them being introduced to others — an automatic (无意识的)review for you...How will most people feel when you try hard to remember their names?
| A.They will be moved. | B.They will be annoyed. |
| C.They will be delighted. | D.They will be discouraged. |
.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 names | 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. |
People believe that climbing can do good to health. Where can you learn the skill of climbing then? If you think that you have to go to the mountains to learn how to climb, you’re wrong. Many Americans are learning to climb in city gyms(体育馆). Here,people are learning on special climbing walls. The climbing wall goes straight up and has small holding places for hands and feet.
How do people climb the wall? To climb,you need special shoes and a harness (保护带) around your chest to hold you. There are ropes(绳索)tied to your harness. The ropes hold you in place so that you don’t fall. A beginner’s wall is usually about 15 feet high, and you climb straight up. There are small pieces of metal that stick out for you to stand on and hold on to. Sometimes it’s easy to see the next piece of metal. Sometimes, it’s not. The most difficult part is to control your fear. It’s normal for humans to be afraid of falling, so it’s difficult not to feel fear. But when you move away from the wall, the harness and the ropes hold you,and you begin to feel safe. You move slowly until you reach the top.
Climbing attracts people because it’s good exercise for almost everyone. You use your whole body, especially your arms and legs. This sport gives your body a complete workout. When you climb,both your mind and your body can become stronger. What can we infer from the passage?
| A.People are fairly interested in climbing nowadays. |
| B.It is impossible to build up(强健) one’s body by climbing. |
| C.People can only learn the skill of climbing outdoors. |
| D.It is always easy to see holding places in climbing. |
. The most difficult thing to do in wall climbing is________.
| A.to tie ropes to your harness | B.to control your fear |
| C.to move away from the wall | D.to climb straight up |
. The word “workout” underlined(被划线) in the last paragraph most probably means________.
| A.settlement | B.exercise | C.excitement | D.tiredness |
Why does the author write this passage?
| A.To tell people where to find gyms. |
| B.To prove the basic need for climbing. |
| C.To encourage people to climb mountains. |
| D.To introduce the sport of wall climbing. |
When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived on a farm and,in the winter especially, we were quite cut off from the outside world. As soon as I left school, I packed my bags and moved to the capital. However, I soon discovered that city life has its problems too.
One big disadvantage(不利之处) is money—it costs so much to go out,not to mention basics like food and housing. Another disadvantage is pollution. I suffer from asthma (哮喘), and at times the air is so bad that I am afraid to go outside. Then there is the problem of traveling round. Although I have a car, I seldom use it because of the traffic jams. One choice is to go by bicycle,but that can be quite dangerous.
Of course there are advantages(优点). First, there is so much to do in the city,whatever your tastes in culture or entertainment (娱乐活动). Besides, there are wonderful jobs and greater chances of moving to a more important job or position. Finally,if you like shopping, the variety (多样化)of goods is very surprising—and, what is more, shops are often only a short walk away.
Is life better then,in the city? Perhaps it is,when you are in your teens(十几岁)or twenties. However, as you get older,and especially if you have small children, the peace of the countryside may seem preferable(更可取的,更好的). I certainly hope to move back there soon... What was the writer always thinking about when he was a child?
| A.Staying on the farm. | B.Moving to the countryside. |
| C.Leaving home for the city. | D.Running away from the school. |
.Which of the following is TRUE about the writer?
| A.He is very old now. | B.He is in good health. |
| C.He prefers driving a car. | D.He lives in the city now. |
.In the passage, the writer tries to________.
| A.express his opinions about way of life |
| B.describe his life in the countryside |
| C.show an interest in the outside world |
| D.persuade the reader to live in the city |
.. How is the passage mainly developed?
| A.By inferring(推断). | B.By comparing.(作对比) |
| C.By listing examples. | D.By giving explanations. |
At first all films were in black and white, but in 1932 the first color film was made. It proved as unpopular as making films had done in the late 1920’s. It was not until 1938 that a full length color film was made, and the success of this film made producers(制片人) everywhere change from black and white to color. This first full-length color film was translated (翻译)into ten different languages and made Hollywood(好莱坞)the main center( 中心)of film industry(电影业)
In the early days of the cinema, other countries had also film industries. Very good films were made in Sweden, Britain, Russia and France. However, because Holleywood had so much money to spend, it kept its position as the world’s most important film center. Film actors went to America because they knew they could get a lot of money for every film they made. In 1918 Charlie Chaplin (查理·卓别林)received $5 each day.
However, life was not always easy for the film actors. Newspapermen followed them everywhere, and after Charlie Chapine married for the fourth time he became so unpopular with the American public that he had to leave the country and live in Europe.. Which of the following is correct?
| A.People liked the color film as soon as it was made. |
| B.At first making films were not popular. |
| C.Color films were at first silence. |
| D.Talking films were all color films. |
.. The first full-length color film was made ___________
| A.in Holleywood | B.in Sweden | C.by Charlie Chapine | D.in Britain |
. Many film actors went to America because ___________
| A.America was the only country that made good films. |
| B.no other countries had film industries |
| C.they could make a lot of money there |
| D.they wanted to become famous actors |
.. Life was sometimes difficult for actors because ______________
| A.films often cost huge amount of money to make |
| B.they had to leave their countries |
| C.sometimes films lose money |
| D.they could not get away from newspapermen |