7、1、

10、6、

A. then

B. really

C. only

D. indeed

4、17、

A. 　 true

B. 　 belief

C. 　 richness

D. 　 interest

1、Passage 12More and more people like bicycling and it is no surprise. It is fun, healthy and good for the
environment. Maybe that‘s why there are 1.4 billion bicycles and only 400 million cars on roads
worldwide today. Bikes can take you almost anywhere, and there is no oil cost!
Get on a bicycle and ride around your neighborhood. You may discover something new all
around you. Stopping and getting off a bike is easier than stopping and getting out of your car. You
can bike to work and benefit from the enjoyable exercise without polluting the environment. You
don‘t even have to ride all the way.
Folding bikes work well for people who ride the train. Just fold the bike and take it with you.
You can do the same on an airplane. A folding bike can be packed in a suitcase. You can also take
a common bike with you when you fly. But be sure to look for information by getting on airline
websites. Not all airlines are bicycle-friendly to travelers.
Health Benefits of Bicycling:
It helps to prevent heart diseases.
It helps to control your weight.
A 15-minute bike ride to and from work three times a week burns off five kilos of fat in a
year.
It can improve your mood.
Exercise like bicycling has been shown to make people feel better, more relaxed and
self-confident.
Bicycling is healthier than driving.
2. When you are riding your bicycle around your neighborhood, you may ________.

A. 　pollute the environment around

B. 　find something you didn‘t notice

C. 　go everywhere and use a little oil

D. 　get off your bike and begin to work

9、12、

A. equivalents

B. same

C. parallels

D. equals

3、11、

A. 　 luxurious

B. 　 painful

C. 　 attractive

D. 　 noticeable

178.I‘ll never allow you to travel in such a( )of heath.

A. 　mess

B. 　 fashion

C. 　 manner

D. 　 state

1、Passage 20Clifford Stoll ran a computer system in Berkelely, California. As a system administrator, he
kept a close eye on the records. One day, Stoll found something strange in the payment record.
There was a 75 cents mistake. One of the thousands of users had used the system for 75 worth of
time and not paid for it.
It might sound like very little money to worry about. But that 75 cents was the first clue Stoll
had to a much bigger problem — that a hacker（黑客）had broken into Stoll‘s computer system.
Who was it? Stoll spent the next year trying to find out. During that time the hacker used the
system in Berkelely as a starting point to break into military computer systems all over the United
States.
Stoll had to keep track of the hacker‘s activities on the computer without the hacker‘s
knowing someone was watching him. Stoll even made up huge files of false information so the hacker would have lots to read. When the hacker spent long time reading, the telephone company
was able to trace the lines. After a year, the hacker was traced back to his computer — in
Germany. He was later caught by the German police.3. Stoll was concerned about a 75 cents mistake because ________.

A. 　every cent was important to the company

B. 　it might lead to a greater loss for the company

C. 　he was afraid the computer system might break down some day

D. 　he realized someone had broken into the computer system

113.Not until she arrived at the meeting room( )she had forgotten to bring the document.

A. 　she realized

B. 　 did she realize

C. 　 she did realize

D. 　 does she realize

1、Passage 18Students can travel in the United States without spending too much money if they follow
these suggestions.
A travel agent can give you information on special economy fares for trains, buses and planes.
Think about hiking or biking for a part of your trip, too. You‘ll not only save money, but you‘ll
also see a lot more of the country.Some students may want to travel by car. Be sure to think about going with other students —
many colleges have ―ride boards‖ that list when and where other students plan to travel. Many
radio stations provide the same sort of service — they announce who‘s driving where, when, how
many riders they will take and what the expenses will be.
There are many inexpensive, older hotels near bus or train stations. Check your travel guide
for names of the best. Many parts of the country also have youth hostels where young people can
stay for only a few dollars a night.
You don‘t have to eat in restaurants all the time, but we don‘t recommend a diet of candy and
cola, either. You can usually get a healthy, cheap breakfast in a restaurant. If the weather is warm,
you can buy food in supermarkets or at roadside stands and have a picnic for lunch. For dinner
you can get the names of good, cheap restaurants from travel guides or friends.
5. To save money, you can ________.

A. 　have more candy and cola

B. 　invite your friends for a picnic

C. 　take some food with you

D. 　eat in restaurants sometimes

1、Passage 7Greek soldiers sent messages by turning their shields toward the sun. The flashes reflected
light could be seen several miles away. The enemy did not know what the flashes meant, but other
Greek soldiers could understand the message.
Roman soldiers in some places built long rows of signal towers. When they had a message to
send, the soldiers shouted it from tower to tower. If there were enough towers and soldiers with
loud voices, important news could be sent quickly over distance.
In Africa, people learn to send messages by beating on a series of large drums. Each drum
was kept within hearing distance of the next one. The drum beats were sent out in a special way
that all the drummers understood. Though the messages were simple, they could be sent at great
speed for hundreds of miles.
In the eighteenth century, a French engineer found a new way to send short messages. In this
way, a person held a flag in each hand and the arms were moved to various positions representing
different letters of the alphabet. It was like spelling out words with flags and arms.
Over a long period of time, people sent messages by all these different ways. However, not
until the telephone was invented in America in the nineteenth century could people send speeches
sounds over a great distance in just a few seconds.
2. Which of the following statements is true?

A. 　Neither the Greek soldiers nor their enemy could understand the message.

B. 　African soldiers shouted from tower to tower to pass message.

C. 　Telephone was invented by a French engineer.

D. 　Only by using telephone could people send speech sounds quickly.