Global warming happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows，but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out As a result，the temperature rises.
Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on Without it，the earth would be freezing，or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it，so people，plants，and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the each can get unusually warmer, and many plants，animals．and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat, and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually, people，plants，and animals would all die of hunger．
People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now, more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming, kids call do just as much.By the example given in Paragraph l, the author wants to__________.
| A．explain how global warming happens |
| B．show his feeling in a car in hot summer |
| C．tell us cars are causes of greenhouse gases |
| D．say that I there are greenhouse gases in every car |
The underlined word ‘it” in Paragraph 2 refers to__________.
| A．light | B．greenhouse effect | C．temperature | D．heat |
What is the effect of atmosphere?
| A．IT only traps the heat of the sun. |
| B．It does great harm to humans. |
| C．It makes the earth neither to hot nor too cold. |
| D．It prevents all the light from the sun shining on the earth. |
What is the main idea of the third paragraph?
| A．lf there is greenhouse effect．all the plants will die |
| B．Human beings are likely to disappear from the earth |
| C．Crops can ′t take in the heat lf there is greenhouse effect |
| D．Although greenhouse effect is necessary．Too much of it will cause us to die. |
What will the author most probably discuss in the paragraph that follows?
| A．What kids can do to help stop global warming. |
| B．Who should be responsible for the environmental problems. |
| C．What global warming is doing to the environment. |
| D．Why cars and buses pollute the air a lot |
A little boy went to a farmer who had some puppies (小狗）to sell and said, “I want to buy one of your puppies.” Then reaching deep into his pocket, he pulled out a handful of change and held it up to the farmer. “I’ve got thirty-nine cents. Is that enough to take a look.”
“Sure,” said the farmer. Then he called his dog, “Here, Dolly!”
Out from the doghouse and down the ramp(斜坡) ran Dolly followed by four little balls of fur. The little boy pressed his face against the chain link fence. His eyes danced with delight.
As the dogs made their way to the fence, the little boy noticed something else moving inside the doghouse. Slowly, another little ball appeared. This one was much smaller than the others. Down the ramp it slid(滑行). Then in a somewhat awkward manner the little pup began hobbling(蹒跚) toward the others, doing its best to catch up…
“I want that one,” the little boy said, pointing to the slow dog.
The farmer knelt down at the boy’s side and said, “Son, you don’t want that puppy. He will never be able to run and play with you like these other dogs will.”
With that the little boy stepped back from the fence, reached down, and began rolling up one leg of trousers. There was a steel brace(支架) running down both sides of his leg. It was joined to a specially made shoe. Looking back up at the farmer, he said, “You see, sir, I don’t run very well myself, and he will need someone who understands.”
The world is full of people who need someone who understands. It can be inferred that “Dolly” in the passage was _______.
| A．a mother dog | B．the little boy’s name |
| C．the farmer’s son | D．one of the puppies |
How many puppies did the farmer have in all?
| A．3 | B．4 | C．5 | D．6 |
The little boy decided to buy the smallest puppy because _______.
| A．he was disabled and decided to be a vet (兽医) to cure it |
| B．he knew the smallest puppy needed understanding and care most |
| C．he liked puppies that were unable to run fast |
| D．he didn’t have enough money to buy a different one |
A public high school in the rural town of Boonsboro，Maryland，offers a special program recently. Top students in the ninth and tenth grades can attend single－sex classes for math，science，English and social studies.
The aim is to help teenagers keep their mind on their work by keeping males and females apart. Rebecca Brown chooses the students for what Boonsboro High School calls the Academy. “What we really want to do is take that top group of kids and take them to the very highest level they can achieve here，so that they’re prepared for college，” she said. They need high marks and test scores and strong teacher recommendations. They also need to be involved in activities.
Michael Bair has been at Boonsboro High School for twenty years and directs the Academy. His ninth－grade English class for boys centers on books that he believes boys find interesting. “The novels they’re reading now，are very manly novels. They’re novels that deal with the arrogance(傲慢)of man and the pride of man.” One of those books，for example，is “The Call of the Wild” by Jack London. This classic story tells of a dog stolen from his home and sold to work as a sled dog in Canada’s Klondike Gold Rush.
On this day，the students are working in small groups. Vincent and Logan explain why they’re drawing pictures that relate to the story. Vincent said，“The main character，Buck，gets abducted(绑架), and they send him off to the Yukon in a train. So I’m drawing part of the story where he’s in the train. It gets you to visualize the setting of the story and gets you to think more about what’s going on in the story，the important events of the story.”“ Instead of just doing work sheets about it，this is a lot more fun，” Logan added happily.
Morgan Van Fleet likes being in the Academy. She says boys and girls act differently when they are together in a classroom. “To me，it almost seems like it’s hindering(妨碍) your chances at developing yourself because you’re more focused on ‘Oh，I wish they’d shut up. Oh，what do they think of me？’ instead of focusing on what’s the homework or what’s going on in this class，what’s the lesson.”What is the purpose of the text?
| A．To educate. | B．To persuade. | C．To instruct. | D．To introduce. |
In Rebecca Brown’s opinion，________.
| A．any student in Boonsboro High School can take part in the program |
| B．students in the program are expected to get well prepared for college |
| C．students can all achieve their highest levels in the program |
| D．students don’t have to join in the activities. |
The underlined word “visualize” in Paragraph 4 probably means “________”．
| A．form a picture of | B．pay a visit to |
| C．take a look at | D．have a gift for |
What can we conclude from the text?____________.
| A．Michael Bair considers it unsuitable for boys to read the book “The Call of the Wild”． |
| B．Vincent thinks that his drawings can help understand the novel better. |
| C．Jack London is a main character in the book “The Call of the Wild”． |
| D．Morgan Van Fleet thinks the program does no good to her. |
The text is probably taken from________.
| A．a school’s introduction | B．a teacher’s diary |
| C．a headmaster’s speech | D．a news report |
Pollutants coming from automobile operation have begun to cause many environmental problems. It has been calculated, for example, that 70% of the carbon monoxide(一氧化碳), 45% of the nitrogen oxides(氮氧化合物), and 34% of the hydrocarbon (碳氢化合物) pollution in the United States can be traced directly to automobile exhausts (废气). In addition, rubber, motor oil and other materials accumulate on roadways and are washed into streams, with effects nearly as serious as those of untreated waste water.
In an effort to improve the situation, the U.S. government has made regulations on the use of the constituents (成分) of automobile exhaust gas that are known to cause air pollution. These constituents fall roughly into three types: hydrocarbons that pass through the engine unburned; carbon monoxide, also a product of incomplete burning; and nitrogen oxides which are formed when nitrogen and oxygen are in contact at high temperatures. Besides their own poisonous character, hydrocarbons and nitrogen oxides react in the presence of sunlight to form harmful smog. Carbon monoxide and hydrocarbons are rather easily controlled by the use of higher burning temperatures in engines. Unfortunately, the conditions that produce minimum emission of hydrocarbons tend to raise emission of nitrogen oxides. In a way this difficulty is solved by adding recycled exhaust gas to the fuel mixture, thus avoiding the oversupply of oxygen that favors formation of nitrogen oxides.
California, which has the most strict air-pollution laws in the United States, requires further special compounding of gas to control emissions, and several states have ordered that alcohol be mixed with gas, as this will reduce emissions of the carbon monoxide by 35 per cent and the hydrocarbons by 15 per cent. The author uses figures in Paragraph 1 ________.
| A．to reflect the rapid growth of automobile use |
| B．to highlight the importance of environment protection |
| C．to show the consequence of automobile exhausts |
| D．to criticize the low quality of cars |
How are nitrogen oxides formed according to the text?
| A．Nitrogen and oxygen are put together in great heat. |
| B．Carbon monoxide and oxygen are mixed together. |
| C．Hydrocarbons pass through the engine. |
| D．Nitrogen is burned incompletely. |
Which of the following is NOT true according to the text?
| A．Carbon monoxide can be controlled in the engine. |
| B．Smog will form when hydrocarbons meet nitrogen oxides in the sunlight. |
| C．Hydrocarbons have no poisonous character themselves. |
| D．The conditions that decease emission of hydrocarbons will increase emission of nitrogen oxides. |
According to the text, alcohol is added to gas in order to ______.
| A．increase awareness of environment protection |
| B．control air pollution |
| C．increase the fuel efficiency |
| D．replace gas gradually |
According to the survey conducted by some scientists, it is common to have difficulty sleeping during the day. Humans are naturally wired to sleep best at night and be awake during the day. However, modern work schedules require some people to try to accommodate the unnatural schedule of shift（轮班）work — being awake at night and sleeping during the day.
In order to make this adjustment, you need to pay special attention to your sleep environment and your preparation for sleep. If shift work is a necessary part of your work life, here are some suggestions that may help.
Arrange to sleep uninterrupted in a quiet, dark room. This means you may have to turn off or unplug your phone, hang darkening curtains on the windows or wear a sleep eye mask, and train your family and friends to leave you alone while you sleep.
Fit in a nap (小睡). When your daytime sleep period is too short, taking a short nap of less than 30 minutes just before work or on a break has been shown to improve alertness and enhance performance.
Develop and follow a sleep routine. It's best if you go to sleep and wake up at the same time every day. Try not to vary this too much on weekends. Your body likes routine.
Take extra care to make healthy choices. You may be tempted to reach for unhealthy foods or nicotine to stay awake or alcohol to try to sleep. But ultimately these choices are more harmful than helpful.
If you have tried all these things and are still having problems getting enough quality sleep during the day, talk to your doctor or a sleep specialist. Sometimes medications (药物治疗) may be helpful and safe. In other cases, there may be an underlying sleep disorder that needs to be addressed.The purpose of the text is to_____ .
| A．persuade workers to have a good sleep |
| B．advise night workers to keep healthy |
| C．encourage workers to do day work |
| D．help night workers to sleep well |
What does the author recommend?
| A．A suitable amount of alcohol to help sleep. |
| B．A regular life on weekday’s and weekends. |
| C．A bright room without phones to sleep in. |
| D．A break for sleeping anytime during the day. |
On which condition should a person turn to a sleep specialist for help?
| A．If he suffers from a sleep disorder for the first time. |
| B．If a good sleep environment is greatly needed for him. |
| C．If he fails to get quality sleep through his own efforts. |
| D．If he has the problem of falling asleep in the daytime. |
We can learn from the text that_____________.
| A．night workers need a long time to fall asleep |
| B．constant breaks at work help to improve performance |
| C．it is difficult to create a good sleep environment |
| D．night work requires people to adjust their body clocks |
Goddington Theater
The Goddington Theater Ticket Office is open from 10 a.m. until 4 p.m. Monday to Friday, and for half an hour in the evening before the advertised start time of each performance.
Telephone bookings
Your tickets are held at the Ticket Office for you to collect or, if you prefer, a charge of 35 cents is made to post them to you if you pay by cash. We’ll post them to you for free if you book by credit card. No extra charge.
Postal bookings
You can write to the Ticket Office requesting tickets, or to confirm a reservation.
Where to find Goddington Theater
Goddington Theater can be found within the Goddington University site, next to the car park, which is available for public use after 5 p.m. on weekdays and all day on weekends.
If travelling by car
Coming from the south end of Princes Street, you will see the library on your right. Next to the library is Goddington University. Take the next turning on the right, then first right into the car park gate straight ahead of you, stopping as close as possible to the orange machine. Put a $ 1 coin in the machine and the gate will rise.
If travelling by train/bus/ taxi
You will need to allow 30 minutes to walk from the train station. Taxis are available from the front of the station.
The University is a 5 to 10 minutes’ walk from the main bus station.
When ordering a taxi from the theater, ask to be picked up at the bottom of North Street. Taxis will not come into the car park because of the entrance charge. You can book your tickets ________.
| A．at 9 a.m. on Monday | B．at 5 p.m. on Wednesday |
| C．at lunch time on weekends | D．at noon on workdays |
Where is the Goddington Theater?
| A．To the south of Princes Street. |
| B．On the right of the Ticket Office. |
| C．In the Goddington university. |
| D．At the bottom of North Street. |
What can we learn from the passage?
| A．You can find a free parking place in the university. |
| B．You have to collect your tickets if you pay by credit card. |
| C．Tickets paid by cash will be posted to you at no extra charge. |
| D．Taxi drivers are unwilling to pick up customers inside the car park. |
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