Electric cars are dirty.In fact，not only are they dirty，they might even be more dirty than their gasolinepowered cousins.
People in California love to talk about “zeroemissions vehicles”，but_people_in_California_seem_to_be_clueless_about_where_electricity_comes_from.Power plants mostly use fire to make it.Aside from the new folks who have their roofs covered with solar cells，we get our electricity from generators.Generators are fueled by something—usually coal，oil，but also by heat generated in nuclear power plants.There are a few wind farms and geothermal(地热的) plants as well，but by far we get electricity mainly by burning something.
In other words，those “zeroemissions” cars are likely coalburning cars.It’s just because the coal is burned somewhere else that it looks clean.It is not.It’s as if the California Greens are covering their eyes—“If I can’t see it，it’s not happening.” Gasoline is an incredibly efficient way to power a vehicle；a gallon of gas has a lot of energy in it.But when you take that gas(or another fuel) and first use it to make electricity，you waste a nice part of that energy，mostly in the form of wasted heat—at the generator，through the transmission(传送) lines，etc.
A gallon of gas may propel your car 25 miles.But the electricity you get from that gallon of gas won’t get you nearly as far—so electric cars burn more fuel than gaspowered ones.If our electricity came mostly from nukes；or geothermal，or hydro，or solar，or wind，then an electric car truly would be clean.But for political，technical，and economic reasons，we don’t use much of those energy sources.
In addition，electric cars’ batteries which are poisonous for a long time will eventually end up in a landfill.And finally，when cars are the polluters，the pollution is spread across all the roads.When it’s a power plant，though，all the junk is in one place.Nature is very good at cleaning up when things are too concentrated，but it takes a lot longer when all the garbage is in one spot.What does the underlined part mean in Paragraph 2?
| A．People see the California Greens everywhere. |
| B．People in California love to talk about zeroemissions vehicles. |
| C．People in California love to have their roofs covered with solar cells. |
| D．People in California have no idea that so far electricity mainly comes from burning coal，oil，etc. |
What is the main idea of the text?
| A．Electric cars are not clean at all. |
| B．Electric cars are better than gasolinepowered ones. |
| C．People cast doubts on electric cars’ batteries. |
| D．Gasoline is an efficient way to power a vehicle. |
The electricity we get from a gallon of gas may make our car run ________.
| A．not less than 25 miles |
| B．as far as 50 miles |
| C．as far as 25 miles |
| D．not more than 25 miles |
It can be inferred from the text that ________.
| A．being green is good and should be encouraged in communication |
| B．electric cars are not clean in that we get electricity mainly by burning something |
| C．zeroemissions vehicles should be chosen to protect our environment |
| D．electric cars are now the dominant vehicle compared with gasolinepowered cousins |
C
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For Rent
Best on Campus
Excellent Room for girls, begins Jan. 2, 4, or 8 months lease. Single, $ 105. $125. Double, $ 140. Call 800-1932.
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Moving: Must sell. Color TV 21, $ 150; transistor radio, $ 15; recorder, $ 25. Call 800-0739.
Help Wanted
Babysitter—My home
If you could find a few hours during the day, some evenings and weekends to care for 2 school- age children, please call 800-1111.
Lost
A black bag with a pencil-box and some books left in the reading room. Will the finder please come to Class 3, Grade 1?
Found
A green jacket was left on the sports ground yesterday afternoon ( April 15th). Will the owner please ring 656-6688?
44. If you wanted to place an ad. , what number would you call?
A. 800-0739 B. 800-1932 C. 800-5224 D. 800-0667
45. If you want to find a part-time job, you will look at________.
A. For Rent B. For Sale C. Help Wanted D. Lost
B
How does a place become a World Heritage Site ( 世界遗产 ) ? It takes a lot of people to decide.
1 ) If a country wants one of its places to be on the World Heritage List, it has to ask UNESCO. The place must be important and special. UNESCO put the Great Wall on the list in 1987 because, it said, it was a great part of Chinese culture and beautifully made to go with the land. When a country asks, it must also make a plan for taking care of the place.
2 ) The World Heritage Committee of UNESCO talks about different places and decides
whether to put them on the list. The committee meets every June. Many experts help the committee to decide.
3 ) After a new place goes on the list, UNESCO gives money to help keep it looking good. If a place is in serious danger, it may be put on the list of World Heritage Sites in Danger. UNESCO gives special care and help to those places.
4 ) Countries have to give UNESCO regular reports about places on the list. If UNESCO thinks a country isn’t taking good enough care of a place, the site will be taken off the list.
41. The passage implies that ________.
A. becoming a world heritage site takes hard work.
B. a place with beautiful scenery is often on the World Heritage List.
C. a place which was taken good care of is often on the World Heritage List.
D. the Great Wall became a World Heritage Site for its history.
42. If a place successfully becomes a World Heritage Site, the country ________.
A. can ask UNESCO for more money and help
B. should continue to take special care of it
C. won’t take trouble of caring for it
D. will try to put it on the List of World Heritage Sites in Danger
43. The purpose of putting a place on the World Heritage List is ________.
A. to attract more tourists from other countries
B. to get more money and help from other countries
C. to have it taken better care of
D. to make it known to other countries
第二部分：阅读理解（共15小题；每小题2分，满分30分）
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
There have been many great inventions, things that changed the way we live. The first great invention was one that is still very important today－the wheel. This made it easier to carry heavy things and to travel long distances.
For hundreds of years after that there were few inventions that had as much influence as the wheel. Then in the early 1800’s the world started to change. There was little unknown land left in the world. People didn't have to explore much any more. They began to work instead to make life better. In the second half of the 19th century many great inventions were made. Among them were the camera, the electric light and the radio. These all became a big part of our life today. The first part of the 20th century saw more great inventions: the helicopter in 1909, movies with sound in 1926, the computer in 1928, and jet planes in 1930. This was also a time when a new material was first made. Nylon came out in 1935. It changed the kind of clothes people wear.
The middle part of the 20th century brought new ways to help people get over diseases. They worked very well. They made people healthier and let them live longer lives. By the 1960’s most people could expect to live to be at least 60. By this time most people had a very good life. Of course new inventions went on to be made. But man now had a desire to explore again. The world was known to man but the stars were not. Man began looking for ways to go into space. Russia made the first step. Then the USA took a step. And then China has made her steps into space.
In 1969 man took his biggest step away from earth. Americans first walked on the moon. This is certainly just a beginning though. New inventions will some day allow us to do things we have never dreamed of.
36. This passage talks mainly about _________.
A. why cars were very important B. when electric light was invented
C. which country made the first step into space D. how inventions influence people’s life
37. In 1800’s, people began to work to make_________.
A. explorations B. life better C. discoveries D. a trip to space
38. Nylon came out nearly at the same time as _________.
A. radios B. cameras C. jet planes D. movies
39. People can live longer lives because _________ to help people cure diseases have worked very well.
A. doctors B. new ways C. medicines D. new hospitals
40. Man didn’t have a desire to explore a lot _________.
A. at the beginning of the 1800’s B. in the 1960’s
C. since the 1900’s D. from the 1800’s to the 1960’s
D
Young people can have problems with their minds. Some students become worried because they have to study very hard. Others have trouble getting on well with people like their parents and classmates.
Liu Wei, a Junior 2 student from Hefei, could not understand his teacher and was doing badly in his lessons. He became so worried about it that he started to cut his finger with a knife. Another student, 14-year-old Yan Fang from Guangzhou, was afraid of exams. She got very worried in the test, and when she looked at the exam papers, she couldn’t think of anything to write.
A recent report from Jiefang Daily says about 18% of Shanghai teenagers have mental(心理的)problems. Their troubles include being worried and very unhappy, and having problems in learning and getting on well with people. Many students who have problems won’t go for advice or help. Some think they will look stupid(愚蠢的)if they go to see a doctor. Others don’t want to talk about their secret.
Liang Yuezhu, an expert on teenagers from Beijing Anding Hospital has the following advice for teenagers.
1). Talk to your parents or teachers often.
2). Take part in group activities and play sports.
3). Go to see a doctor if you feel unhappy or unwell.
51. The students who often become worried or have trouble getting on well with others may have___________.
A. mental problems B. a headache C. knives with them D. no parents
52. Liu Wei cut his finger with a knife because____________.
A. he was afraid of his teacher B. he wanted to frighten his parents
C. he was so worried about his study D. his finger was badly hurt
53. Yan Fang’s problems happened whenever ______________.
A. she studied very hard B. she had exams
C. she talked with her parents D. she thought of something
54. Students who have problems won’t ask others for help because _____________.
A. they won’t let others think they are stupid.
B. they don’t think doctors can help them.
C. they don’t want to tell their secret to others.
D. both A and C.
55. Liang Yuezhu’s advice tells us that_________________.
A. it’s better for the students who have mental problems to join others.
B. it’s unnecessary for them to be with others.
C. only group activities and sports can help them.
D. teachers and parents can’t do anything about mental problems.
C
A young woman carrying a three-year-old child got on a bus. The conductor(售票员) hurried to give her a warm welcome and then kindly asked the other passengers to make more room for the woman and her child. On seeing this, people began to talk. "You know this conductor used to be very rude. Now suddenly he has changed his bad behavior , "said a middle-aged man.
"Yes, he should be praised and we must write a letter to the company," said a second passenger. "That's right," another lady said, "I wish a newspaper reporter were here so that more people could learn from this conductor. "
Just then a gentleman who looked like a teacher turned to the conductor and said , "Excuse me, but can I know your name, please? Your excellent service must be praised..."
Before he could open his mouth, the three-year-old child sitting on the young woman's lap interrupted, "I know his name. I call him Dad."
46. The passengers were ________ to see the conductor's kindness to the woman and the child.
A. excited B. unpleased C. interested D. surprised
47. One passenger suggested writing a letter to the company to ______.
A. make a demand for more buses
B. thank the conductor for his good service
C. criticize the conductor for his rude behavior
D. invite a newspaper reporter to write about the conductor
48. What was the gentleman?
A. A teacher. B. A newspaper reporter.
C. Not known from the story. D. The conductor's friend from his company.
49. The word "he" in the last paragraph refers to _______.
A. the gentleman B. the conductor
C. the middle-aged man D. the three-year-old child
50. It is clear from the story that the conductor _______.
A. has changed his attitude towards his work
B. has now been kind and polite to all passengers
C. has not changed his rude behavior to passengers probably
D. has now been kind and polite to women with children
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