There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic. At present, we realize that although these are the areas with the worst air pollution, the problem is literally worldwide. On several occasions over the past decade, a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas away from any major concentration of manufacturing and automobile traffic. In fact, the very climate of the entire earth may be infected by air pollution. Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels (coal and oil) is creating a “greenhouse effect”— conserving heat reflected from the earth and raising the world’s average temperature. If this view is correct and the world’s temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York, Boston, Miami, and New Orleans will be in water.

Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’s temperature — a result that would be equally disastrous. A drop of just a few degrees could create something close to a new ice age, and would make agriculture difficult or impossible in many of our top farming areas. Today we do not know for sure that either of these conditions will happen (though one recent government report drafted by experts in the field concluded that the greenhouse effect is very possible). Perhaps, if we are lucky enough, the two tendencies will offset each other and the world’s temperature will stay about the same as it is now. Driven by economic profits, people neglect the damage on our environment caused by the “advanced civilization”. Maybe the air pollution is the price the human beings have to pay for their development. But is it really worthwhile?

As pointed out at the beginning of the passage, people used to think that air pollution _______.

A. cause widespread damage in the countryside

B. affected the entire eastern half of the United States

C. had damaged effect on health

D. existed merely in urban and industries areas

As to the greenhouse effect, the author __________.

A. share the same view with the scientist.

B. is uncertain of its occurrence

C. rejects it as being ungrounded

D. thinks that it will destroy the world soon

The word “offset” in the second paragraph could be replaced by _________.

A. slip into   B. make up for　　 C. set up    D. catch up with

It can be concluded that ____________.

A. raising the world’s temperature only a few degrees would not do much harm to life on earth

B. lowering the world’s temperature merely a few degrees would lead major farming areas to disaster 

C. almost no temperature variations have occurred over the past decade

D. the world’s temperature will remain constant in the years to come

This passage is primarily about __________.

A. the greenhouse effect        　    B. the burning of fossil fuels

C. the potential effect of air pollution  　D. the likelihood of a new ice age

For most of the day construction worker Sidney Smith and his brother – in – law Joseph Chambers had been   21   along the banks of Lake Waco with little   22  . Chambers suggested they go home, but Smith 　33　　that there were still several hours of daylight 　24　　and there was one other place they might try a bit longer before 　25　.

Smith drove his pickup（小货车）a couple of miles along the　26　road to get to the other side of the lake. This road, in the truest sense, was a path wagging in the heavy 　27　area. Even with the sun still high in the cloudless sky, the 　28　of trees formed a leafy　29　over the road and it suddenly seemed 　30　in the evening.

“A guy could get lost and nobody would ever find him,” said Chambers.

Smith smiled, “We’re 　31　there.” He said. A few seconds later, the smile was 　32　　from his face.

“What the hell is that?”

　　He braked to a stop. Less than twenty feet away was what appeared to be a  33  .

　　For several minutes the two men sat in the pickup 　34　to decide whether they had happened to 　35　someone’s bad practical joke or something far more serious. Smith with his brother-in-law got out of the pickup and 　36　walked towards that thing some distance before them.

It was a young man who was already dead. They had got to tell 　37　. Back into the pickup, Smith backed the pickup down the road 　38　he could turn around, then 　39　back. With the dead young man still on his mind, Smith felt as if he was going to be sick. God, how he　40　　they had given up fishing and gone home early.

A．playing　   B．boating　　     C．fishing　　　　      D．walking

A．failure　       B．success　  C．disappointment D．interest

A．quarreled　 B．argued　      C．reasoned　      D．shouted

A．remaining　 B．staying　　     C．keeping　　    D．leaving

A．starting off　B．running out　   C．sending away　       D．giving up

A．winding 　 B．widening　       C．leading　　　  D．blocking

A．grassed 　　B．wooded　　　 C．iced　　　　   D．snowed

A．trunks　　　B．shadow　　     C．shade　　　　 D．shape

A．hat　　　　B．umbrella　 C．sheet　　　     D．overcoat

A．foggy　　 B．late　 　  C．early　　 D．rainy

A．almost 　　B．already　　     C．only　　　      D．fairly

A．escaped　　B．lost　 　　　C．gone　　　       D．missed

A．body　　　B．trap　 　　　 C．pile　　　　   D．stream

A．talking 　　B．hoping 　　 C．wanting　　    D．trying

A．come across B．turn out　　  C．bring about　   D．make up

A．loudly　　　B．quietly　　  C．quickly　　　  D．slowly

A．everybody　 B．somebody　　C．anybody　　　 D．nobody

A．until　　　 B．before　　　  C．after　　　    D．when

A．turned 　　 B．ran　　　　　C．headed　　　 D．walked

A．expected　　B．hoped 　　 　C．wished　　　  D．prayed

For most of the day construction worker Sidney Smith and his brother – in – law Joseph Chambers had been   21  along the banks of Lake Waco with little   22 . Chambers suggested they go home, but Smith　33　　that there were still several hours of daylight　24　　and there was one other place they might try a bit longer before 　25　.
Smith drove his pickup（小货车）a couple of miles along the　26　road to get to the other side of the lake. This road, in the truest sense, was a path wagging in the heavy　27　area. Even with the sun still high in the cloudless sky, the　28　of trees formed a leafy　29　over the road and it suddenly seemed 　30　in the evening.
“A guy could get lost and nobody would ever find him,” said Chambers.
Smith smiled, “We’re　31　there.” He said. A few seconds later, the smile was 　32　　from his face.
“What the hell is that?”
　　He braked to a stop. Less than twenty feet away was what appeared to be a  33 .
　　For several minutes the two men sat in the pickup　34　to decide whether they had happened to　35　someone’s bad practical joke or something far more serious. Smith with his brother-in-law got out of the pickup and 　36　walked towards that thing some distance before them.
It was a young man who was already dead. They had got to tell　37　. Back into the pickup, Smith backed the pickup down the road　38　he could turn around, then　39　back. With the dead young man still on his mind, Smith felt as if he was going to be sick. God, how he　40　　they had given up fishing and gone home early.

Bicycle Safety

Operation　Always ride your bike in a safe, controlled manner on campus. Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.

Theft Prevention　Always securely lock your bicycle to a bicycle rack—even if you are only away for a minute. Register your bike with the University Department of Public Safety. It’s fast, easy, and free. Registration permanently records your serial number, which is useful in the possible recovery of the bike stolen.

Equipment

Brakes　Make sure that they are in good working order and adjusted properly.

Helmet　A necessity, make sure your helmet meets current safety standards and fits properly.

Lights　Always have a front headlight—visible at least 500 feet in front of the bike. A taillight is a good idea.

Rules of the Road

Riding on Campus　As a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15 mph, unless otherwise posted. Always give the right of way to walkers. If you are involved in an accident, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.

Bicycle Parking　

Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycle parking, and parking in such spots can result in a fine.

If Things Go Wrong

If you break the rules, you will be fined. Besides violating rules while riding bicycles on campus, you could be fined for:

×No bicycle registration…$25      ×Bicycle parking banned…$30

×Blocking path with bicycle…$40   ×Violation of bicycle equipment requirement…$35

1.Registration of your bicycle may help you 　　　.

A. find your stolen bicycle                   B. get your serial number

C. receive free repair services                 D. settle conflicts with walkers

2.According to the passage, what bike equipment is a free choice for bicycle riders?

A. Brakes.          B. A helmet.      C. A headlight.               D. A taillight.

3.If you lock your bicycle to a tree on the campus, you could be fined 　　　.

A.$25                           B.$30                           C.$35                               D.$40

4. What is the passage mainly about?

A. A guide for safe bicycling on campus

B. Directions for bicycle tour on campus

C. Regulations of bicycle race on campus

D. Rules for riding motor vehicles on campus

An 11?month?old baby helped raise the alarm that her mother had fallen down unconscious by using a mobile phone.

Amelia Boyle，known as Millie，picked up the ringing mobile and answered the call when her mother Elizabeth,20，fainted in the hall of their home.

Linda Wright，Millie's grandmother，was on the other end of the line and heard the baby say “Who's that？”and “Mama”．

The girl is not allowed to play with the mobile so Mrs.Wright knew something was wrong with Millie's mother，who has a history of fainting and fitting，and dialed 999.Miss Boyle，whose phone it was，woke up in her home in Braintree，Essex，to find police and ambulance crews at her door.She became confused and told them she had not called them.A few minutes later three paramedics arrived and examined her.She did not need hospital treatment.Miss Boyle said，“I went upstairs to get Millie some clothes.I came downstairs again and I was going to get her dressed up as normal.”

“She was moving around playing with some toys when I suddenly fainted between the passage and the living room blocking the stairs.”

“My mum phoned me back on the home phone and when she didn't get through，she tried on the mobile，then the home phone again.”

She added，“I am so lucky to have Millie.”

“Millie does not seem to be disturbed by it.She must have watched me open the phone—she is not usually allowed to play with it because she tends to stick it in her mouth.”

“She is a very clever little girl.I was proud of her anyway but now she is even more special.”

Mrs.Wright said，“If Millie hadn't answered the phone，I wouldn't have known what had happened.”

1．Miss Boyle fell down ill while her baby was________.

A．answering Mrs.Wright's phone call

B．following her mother up and down

C．having fun with her toys

D．playing with her mother's mobile phone

2．Which one is the right order according to the passage?

①Miss Boyle went to get her daughter's clothes.

②Police and doctors reached Millie's home.

③Millie answered her grandma's call.

④Miss Boyle fainted on the floor.

A．①④③② 　　　　 B．②③①④

C．②①④③ 　　　　 D．③①②④

3．From the passage，we know that Millie________.

A．could help her mother get clothes

B．could speak a lot of words

C．was frightened by her mother

D．was a lovely and clever baby

4．What is the author's purpose by writing this story?

A．To introduce an 11?month?old baby to us.

B．To persuade us to use mobile often.

C．To tell us how a baby saved her mother.

D．To describe an accident happening to a baby.