1. Before the 1950s the computer was_________.  

A. widely used                        
B. no use at all  
C. not understood by many people        
D. liked by people

2. The writer thinks our lives are affected by computers, but we________.     

A. don't quite notice it            
B. have known it clearly
C. don't want to know about it      
D. don't like it

3. Although the first computer system was only introduced in the mid-1950s, computers now affect millions of people in countless ways every day. This means the writer___________. 

A. doesn't like computers  
B. likes computers  
C. thinks computers have developed rapidly  
D. thinks we can't live without computers

     Do you ever find yourself getting really angry for almost no reason? Or suddenly feeling down
without knowing why? Going from sadness to anger to joy in a matter of minutes can make many
teens feel as though they're losing their control. But why is the feeling of being on an emotional roller
coaster (急转突变) so common among teens?
     Dealing with constant change and pressure is part of the answer. Maybe you're starting a new
school and not able to see old friends as much. Getting good grades or wanting to be better in sports
or other activities can be a concern for many teens. It might feel as though there just isn't enough time
to do everything.
     Being a teen means struggling with identity and selfimage. Being accepted by friends feels
extremely important. Teens also may notice, for the first time, a sense of distance from parents and
family. You may feel you want to be on your own and make your own decisions, but it can also
seem overwhelming (压倒的) and even a bit lonely at times. As fun and exciting as this time is, it also
can be a time of confusion and conflict.
     Another important cause for mood swings is biology. When puberty (青春期) begins, the body
starts producing sex hormones. These hormones cause physical changes in the body. But in some
people, they also seem to cause emotional changes-the ups and downs that sometimes feel out of
control.
     Feeling irritable or shorttempered can be signs of depression.  So can feelings of boredom or
hopelessness. Many people think of depression as feeling sad, but depression can also bring feelings
of moodiness, impatience, anger. When depression gets in the way of enjoying life or dealing with
others, that's a sign you need to do something about it, like talking to a counselor or therapist (治疗
专家) who can help you deal with it.
     Here are some things you can do that might make those bad moods a bit easier to handle: recognize
you're not alone, catch your breath, count to 10, talk to people you trust, exercise, cry or wait.

 1. From the passage, we can infer that the teens' emotional changes are ________.

A. abnormal                          
B. reasonable
C. predictable                        
D. natural

2. How many reasons does the author refer to in the passage for children's emotional changes? 

A. Two.                              
B. Three.
C. Four.                              
D. Five.

3. What does the passage mainly talk about?

A. Why people are in bad mood.
B. What the result of depression is.
C. Bad mood can cause bad effects.
D. It's important to be dependent.

4. What does the underlined word "irritable" in the fifth paragraph mean?

A. Upset.                            
B. Angry.
C. Unhappy.                          
D. Impatient.

     For several years, Americans have enjoyed teleshopping, watching TV and buying things by phone.    1   In a number of European countries, people can turn on their TVs and shop for clothes, jewelry,
food, toys, and many other things.
       2    For example, the biggest Swedish company sells different kinds of things on TV in 15 European
countries, and in one year it made $100 million. In France there are two teleshopping channels, and the
French spend about $20 million a year to buy things through those channels.
     In Germany, until last year teleshopping was only possible on one channel for 1 hour every day. Then
the government allowed more teleshopping. Other channels can open for telebusiness, including the
largest American teleshopping company and a 24hour teleshopping company. 
       3  
     Some people like teleshopping because it allows them to do their shopping without leaving their
homes.  With all the problems of traffic in the cities, this is an important reason, but at the same time,
other Europeans do not like this new way of shopping.    4    Many Europeans usually worry about the
quality of the things for sale on TV. Good quality is important to them, and they believe they cannot be
sure about the quality of the things on TV.
       5   They will have to be more careful about the quality of the things they sell. They will also have to
work harder to sell things that the buyers cannot touch or see in person.
A. Now teleshopping is starting in Europe.
B. They call teleshopping "Junk on the air".
C. Teleshopping is becoming popular in Sweden.
D. German businesses are hoping this new teleshopping will help them sell more things.
E. The need for high quality means that European teleshopping companies will have to be different from
the American companies.
F. Teleshopping is popular among people.
G. German teleshopping business is controlled by America.

     It is said that there are about 40,000 different kinds of jobs in the world. __1__
     "Finding a job" is not the same as "choosing a job". Many young people end up in a job which they are not suitable for.    __2__    Here are a few steps to help you think about jobs which you might enjoy
doing after school or university.
     First, it is important to realize what kind of person you are, which special qualities make you different
from everyone else and what you are interested in.    __3__   If you like art and enjoy looking at pictures,
that is an interest. But if you can draw a horse that looks like a horse instead of a big dog, that is a skill.
     Then ask yourself this question: in the following three areas-skills with people, skills with information
and skills with things-which are your best skills?
     After examining your skills, the next step is research. To find out as many different kinds of jobs as
possible, go to the library and read books, magazines and newspapers. __4__
     Finally, trust your own ideas and your own thinking! __5__

A. It is your own life, so find something that you enjoy doing.
B. Choosing the right one itself is a difficult job.
C. We must know what our ideal jobs are.
D. There is a difference between an interest and a skill.
E. Ask your friends about the work they do.
F. "Chance" may play a more important part than "decision"．
G. Your parents may also give you some useful advice.

     There are literally hundreds of national parks and wildlife areas in Africa that you can travel to.
Here are the top four travel destinations in Africa:
Tanzania-Serengeti NP
     During the annual migration, when the wildebeests and zebras pack_up and leave their living
areas to find fresher ones, the Serengeti is an astonishing place to be. It's a very good travel spot
in Africa at other times of the year too but the migration has been ranked by many as one of the
wonders of the natural world.
Kenya-Masai Mara NP
     If you want to see the big cats, this wildlife park is the best of the best. Lion, leopard and cheetah
abound and they are relatively easy to spot because of the grassland vegetation which means you get
good views for miles around. Another big plus is the fact that going offroad is allowed and it is a big
advantage because the animals will rarely oblige you and stay next to the major roads.
South Africa-Kruger National Park
     For the variety of species no other place in Africa can come close to the Kruger Park. And because
it is so large it has a number of different ecosystems that you can pass through in your search for animals
and birds. It is one of the best managed parks in Africa and the accommodation is wellequipped, too.
Zambia-South Luangwa National Park
     South Luangwa is a diamond in the rough, just waiting for enough exposure to bring it to its rightful
place in the crown of prime Africa trips. It has been regarded as one of the best places in Africa to see
the special leopard and it is the birthplace of the walking travel.

1. The underlined phrase "pack up" in Paragraph 2 means ________.

A. rise                              
B. suffer
C. gather                          
D. scatter

2. Kruger National Park is different from the other parks in that ________. 

A. there are many kinds of species
B. there are a lot of high trees
C. it is the largest park in Africa
D. the hotels own enough rooms

3. People like South Luangwa National Park because ________.

A. there is a diamond in the park
B. it is the best park in Africa
C. they can see wildlife on foot
D. it is the best wonder in the world

4. The writer's purpose in writing the text is to ________.

A. tell us something about natural animals
B. discuss some problems in African travel industry
C. persuade more people to travel to Africa
D. introduce to us some top natural parks in Africa

     Nobody has ever succeeded in their attempt to stay young and live a very long life.   1   But is this
really true?
     Dr Aubrey de Grey thinks that we can stop people getting old and that in about 20 years, people
will be able to live to be 1,000 years old!  2  
     In Dr Grey's opinion, getting old is a problem that can be solved.  3    If we can cure this disease,
we can stop the aging process.We can also make people have young bodies again.
     Dr Grey believes that science will soon be able to stop the causes of aging so that a person's body
won't get weak and won't suffer from the typical diseases of old age.
     Dr Grey compares the human body to a house.As the house gets older, some things must be
repaired.Broken hearts must be replaced.The same thing can happen with the human body, he thinks.
We can use stem cell technology to grow new, healthy tissue to replace the old, damaged one.We can
also try to remove diseasecausing molecules in our bodies._5_.
      6    However, they admit that Dr Grey's ideas have not yet been proved wrong.Dr Grey is
convinced that his opinions are realistic and that his research is very important.If aging is a disease, he
says, we must try to cure it.
A. At the same time, people's bodies will stay young and healthy.
B. Scientists succeeded in solving the problem of aging long ago.
C. A lot of scientists think his ideas not realistic.
D. When our bodies change as we get older, this is like a disease.
E. New deadly diseases may also be cured, if we can stop the aging process.
F. It seems that everybody must get old and die.
G. In this way, a person could easily live to be 1,000 years old.

     In their book Time to Eat the Dog: The Real Guide to Sustainable Living, Robert and Brenda
Vale say keeping a mediumsized dog has the same ecological impact as driving 10,000 km a year
in a 4.6 liter Land Cruiser.
     "We're not actually saying it is time to eat the dog. We're just saying that we need to think about
and know the ecological impact of some of the things we do and that we take for granted."
     Constructing and driving the jeep for a year requires 0.41 hectares of land, while growing and
manufacturing a dog's food takes about 0.84 hectares-or 1.1 hectares in the case of a large dog
such as a German shepherd.
     Convincing flesheating cats and dogs to go vegetarian for the sake of the planet is a nonstarter,
the Vales say. Instead they recommend keeping "greener", smaller, and more sustainable pets, such
as goldfish, chickens or rabbits.
    The book's playful title, and serious suggestion that pet animals may be usefully "recycled", by
being eaten by their owners or turned into pet food when they die, may not appeal to animal fans.
Annoying as the idea may be, the question is valid given the planet's growing population and limited
resources, Robert Vale said.
     "Issues about sustainability are increasingly becoming things that are going to require us to make
choices which are as difficult as eating your dog. It's not just about changing your light bulbs or taking
a cloth bag to the supermarket," he said.
    "It's about much more challenging and difficult issues," he added. "Once you see where cats and
dogs fit in your overall balance of things, you might decide to have the cat but not also to have the
two cars and the three bathrooms and be a meat eater yourself."

1. The authors gave their book the playful title to ________.

A. make it amusing        
B. create a vivid image
C. show writing skills      
D. arouse people's concern

2. In Paragraph 3 the writer mainly wants to tell us ________. 

A. the amount of consumed land
B. the neglected ecological impact
C. some familiar examples
D. some actual figures

3. Who may not like the idea of "recycling" pet animals? 

A. Manufacturers.            
B. Drivers.
C. Animal fans.              
D. The authorities.

4. What do the authors think of living a sustainable life?

A. Challenging.              
B. Inspiring.
C. Inviting.                  
D. Touching.

     On a typical hot August day in Xianyou County, Fujian Province, Zeng Demei, a retired worker in
his seventies, hurries down a busy street.In his hand is a black leather bag.Zeng opens his bag, taking
out two forms.  1  .
     Each of the forms contains detailed information of a student.On his arrival two hours later a woman
greets him and leads him to her office where another man is waiting.They are the two village officials.
They inspect the forms handed to them by Zeng and immediately recognize the girls.  2  . "It's a pity but
it doesn't matter."says Zeng, who wastes no time in deciding to look for the remaining child, Su Qiuju.
     After half an hour, they stop outside a small house made of mud brick.A middleaged man and a girl
in a faded pink dress greet them.Su Qiuju is eight years old.She was forced to drop out of school after
both her parents died.She is now living with her uncle who cannot afford his own children's education.
However, the year of education Su Qiuju did complete was a successful one._3_.
     When they are about to leave, Zeng says, "I must find a supporter for this girl to sponsor her
education."Zeng has made it his retirement task to help children complete their schooling.Back in 1999,
Zeng took part in a campaign started by the local women's organization to help students from poor
families. __4 _.
      His task had begun and since then he has spent his time persuading his friends and neighbors and
others to donate money."To me, children's education is the most important. __5 _. I have to find
sufficient funding before the school opens in September."
     When asked how long he will keep up his vital work as the community's guardian angel, he has a
simple reply."Not until my eyes can't see, and my feet can't move."
A. They were having problems with their schoolwork
B. These are for the two girls he's going to visit this morning
C. They live in a small village not very far, though only one of the girls is still living at home
D. She displayed a talent for handwriting, writing her threecharacter name neatly and beautifully
E. The thought of students dropping out of school bothers me so much that I can't get to sleep at night
F. Of course, some people question why I would want to give up my retirement to go to so much trouble
G. He was so overcome by the tough situation of many poor children that he donated all his money to help out a girl

     Similar things continuously happened in Haiti and Chile. Thousands of people were buried in the
earthquake and lost their lives. What if we could have warned them? People are always trying hard
to find a way of preventing building collapsing (倒塌). Better materials and technology help, but are
not a solution. Just like humans, a building has its own life circle from "birth" to "death". If we know
when a building is going to collapse, we can repair it in advance or get out before it falls.
     Now, scientists at the University of Illinois have developed a material that turns red before it breaks.
The invention could be used in things like climbing ropes, or bridge supports. The secret behind the
colorchanging material is a type of molecule (分子).  A molecule is a group of atoms held together by
chemical bonds (化学键).  Imagine you and your friends standing in a circle, holding hands. Each
person stands for one atom, your hands represent the bonds, and the entire circle represents a molecule.
If one person lets go of his or her hands, the molecule changes color. The research team put the
molecule into a soft material.  When the researchers stretched (拉紧) the material, it turned bright red
a few seconds before it broke into two pieces. When they repeatedly stretched and relaxed the
material,  without breaking it,  it only turned a little red.
    The major problem is, light can get rid of the red color. When the team shone a bright light on the
molecule, the broken bond was fixed, and the color disappeared. If bright light keeps the red color
from appearing, the material's warning system will be useless. Scientists still have a lot of work to do
before  the  colorchanging  molecule  can  be  used  outside the lab.

1. The passage mainly about ________.

A. a way of preventing buildings from breaking down
B. a way of warning before buildings collapse
C. a series of earthquakes in Haiti and Chile
D. a newlydiscovered structure of a molecule

2. According to the passage, we can conclude that ________.

A. scientists have found the life circle of buildings from "birth" to "death"
B. there are problems to solve before putting the new material to use
C. bright light makes the red color visible to human eyes
D. the new material is unlikely to be used in building bridges

3. The colorchanging molecule can ________. 

A. remind people to leave buildings before they fall
B. help building materials get stretched if necessary
C. prevent the earthquake from killing people
D. make building materials much stronger

4. The warning system is based on the fact that ________. 

A. red color won't show up when it meets bright light
B. a building has its own life circle of "birth" to "death"
C. a material with a certain type of molecule can turn red when stretched
D. the broken bond will fix itself when a molecule meets bright light