D
The price of gas has been going up. We do not know when it will end. Many people want to know how they can save gas. The best way to save gas is to change driving habits.
The accelerator (加速器) or gas pedal, has a lot to do with how much gas you use. The faster you drive, the more gas you use. Drivers should slow down a bit to save gas. Driving at a steady speed helps to save much gas you use. Accelerating slowly to get to the speed you want to go helps save gas too.
The more you drive your car, the more gas you use. Think about the places you need to go before leaving your home. You should run as many errands (差事) that you need to do in one trip. Always try to pick the shortest route when going somewhere.
Cars that are in good working condition use less gas. Take care of your car. Make sure the engine is running well and is tuned up often. Have a repairman check it if something seems wrong.
Tires are important too. Keep the tires inflated (饱满) properly on a car. It will help the car roll better and will get you better mileage （英里数） If the tires of a car are worn then they should be replaced.
Finally, think about using your car less. Walk or ride a bike if you do not have far to go. Carpool (合伙用车) or take public transportation when you can. Leaving your car at home really saves gas.
There are many ways a person can save gas. These are just a few ideas that can help you save some money at the gas pump. Try changing the way you drive and see how much it saves you!
68. Which of the following can help save gas?
A. Driving as fast as you can.
B. Accelerating quickly to get to the speed you want.
C. Driving fast a little now and slowly a little then.
D. Driving at a speed that is, seldom changed.
69. The underlined sentence in the 3rd paragraph probably means you should
A. do as many things as you can in one trip
B. go to as many places as you can in one trip
C. take as many people as you can in one trip
D. use as many ways of driving as you can in one trip.
70. Which of the following is NOT true according to the passage?
A. Always keep your car in good working condition.  B. Never use your car unless it is necessary.
C. Replace your tires if they are worn out.                 D. Always stick to your own driving habits.
71. Which would be the best title for the passage?
A. How to use your car correctly.
B. How to save gas when using your car.
C. How to deal with the price of gas.
D. How to form good driving habits.

A 33-year-old financial analyst in California recently quit his job to devote himself to an unpaid job teaching math on the Internet, and his lessons are reaching almost 100,000 people a month. Salman Khan’s voice is heard every day on the net — by tens of thousands of students around the world who are hungry for help learning math. He has posted 1,200 lessons on You Tube —lessons that appear on an electronic blackboard, which range from basic addition to advanced mathematics for science and finance. And they are free.

Khan lives in Silicon Valley, with his wife, a doctor, and their new baby. He got the idea for his “Khan Academy” four years ago, when he taught a young cousin how to convert kilograms to grams. With Khan’s help, the cousin got good at math, and Khan began a new career.

Now, Khan records his lessons himself, but he never goes on camera. “It feels like my voice in their head. You’re looking at it and it feels like someone’s over your shoulder talking in your ear, as opposed to someone at the blackboard, which is distant from you,” he said.

When Springfield High School in Palo Alto, California invited Khan to speak in person—he immediately connected to the students there.

The idea of short lessons that can be played over and over again attracted high school senior Bridget Meaney. She says she had trouble with math in the seventh grade. “I think the teachers are good, but they can’t teach at a speed that’s perfect for everyone,” she said. “I like the idea of learning something in class but then going back and pressing pause or rewind and actually getting a deeper understanding of it.”

Originally, Khan kept his lessons short because of YouTube restrictions. Now, he thinks short is better. “Education researchers now tell me that 10 minutes is how long someone can have a high level of concentration. And anything beyond that and your brain switches off,” he said.

For Khan, teaching math, science, and finance is just the beginning. He says he’s ready to expand his YouTube site to include other subjects as well.

1.What gave Khan the idea of teaching math online?

A．His success in helping his cousin learn math.

B．His discovery that many students found learning math difficult.

C．A suggestion made to him at a local high school.

D．His interest in Internet teaching.

2.Why does Khan never go on camera?

A．He’s too shy to show his face on camera.

B．It’s restricted by YouTube for education videos.

C．He wants to keep distance from the viewers.

D．He wants to create a more relaxed learning atmosphere.

3.From the passage, we know that ________.

A．Khan travels to many schools to promote his lessons

B．Khan plans to include more subjects in the future

C．Khan gives live math lessons every day for free

D．Khan set up the Khan Academy with his wife

4.Why does Bridget Meaney like Khan’s lessons?

A．Khan teaches seventh grade math better than her teacher.

B．The lessons can be watched repeatedly until fully understood.

C．She can perfectly follow the pace of Khan’s teaching.

D．She cannot concentrate when learning in class.

5.What does Khan mean by “short is better” in the 6th paragraph?

A．Keeping the lessons short can ensure better concentration.

B．YouTube recommends short lessons for its site.

C．Short lessons encourage students to return to the website.

D．Students enjoy short mathematics lessons more.

Personal computers and the Internet give people new choices about how to spend their time.

Some may use this freedom to share less time with certain friends or family members, but new technology will also let them stay in closer touch with those they care most about. I know this from personal experience.

E-mail makes it easy to work at home, which is where I now spend most weekends and evenings. My working hours aren’t necessarily much shorter than they once were，but I spend fewer of them at the office. This lets me share more time with my young daughter than I might have if she’d been born before electronic mail became such a practical tool.

The Internet also makes it easy to share thoughts with a group of friends. Say you do something fun -see a great movie perhaps and there are four or five friends who might want to hear about it. If you call each one, you may be tired of telling the story.

With E-mail, you just write one note about your experience, at your convenience, and address it to all the friends you think might be interested. They can read your message when they have time, and read only as much as they want to. They can reply at their convenience, and you can read what they have to say at your convenience.

E-mail is also an inexpensive way to stay in close touch with people who live far away. More than a few parents use E-mail to keep in touch, even daily touch, with their children off at college.

We just have to keep in mind that computers and the Internet offer another way of staying in touch. They don’t take the place of any of the old ways.

1. The purpose of this passage is to ________.

A. explain how to use the Internet

B. describe the writer’s joy of keeping up with the latest technology

C. tell the merits(价值) and usefulness of the Internet

D. introduce the reader to basic knowledge about personal computers and the Internet

2. The use of E-mail has made it possible for the writer to ________.

A. spend less time working                  B. have more time with his child

C. work at home on weekends             D. work at a speed comfortable to him

3.The best title for this passage is ________.

A. Computer: New Technological Advances

B. Internet: New Tool to Maintain Good Friendship

C. Computers Have Made Life Easier

D. Internet: a Convenient Tool for Communication

阅读文章后，从第50至54题所给A、B、C、D四个选项中，选出最佳答案。

       We all hate speed cameras，don’t we？They’re not there to slow drivers down and lower the road accidents；they just make money for the government．They trick us，cost us cold hard cash，disturb us from driving properly and are unfair．

       Well，here’s a surprising thing：what if there were facts that the boring cameras actually saved lives？It’s a conclusion difficult to ignore when you look at what’s happening in France，a country with a historically poor record of road safety．

       There were 16,617 road deaths in 1972 in France for example，but that dropped to 8412 by 1995 following rules such as compulsory（强迫的）seat belt wearing in 1990 and a lowering of the blood alcohol limit to 0.05 in 1995．

       Last year, the road deaths dropped below 5,000 for the first time，or 4.9 percent less than2004．Comparing road deaths to populating in 2005，that’s about 817 per million people compared with Australia’s 806．

       And guess what？Last year the number of speed cameras on French roads reached 1,000 and the government plans to double that within the next three years．

       Okey, you know the arguments on the increased traffic safety and cameras. for-inco me, but in seems in France there’s been a major cultural change brought on by radars and other laws. A theer-hour, wine-soaked lunch with a quick rush back to the office is no longer on.

       Traveling on the highways，it is rare to see anyone breaking the 130km/h speed limit when one few traveled below it. The speed cameras are clearly signed so drivers know when they are coming There’s even all official web site listing fixed and mobile camera locations and it is updated regularly

       Maybe it is because of such transparency by government，rather than the secrecy too often used by authorities in many other countries that more French can enjoy their life thanks to speed cameras

We can learn from the first paragraph that      ．

       A．speed cameras cost us our lives

       B．speed cameras help HS drive properly

       C．most people think speed cameras are good for slowing drivers down

       D．most people think speed cameras are used to make money for the government

In France, a driver should obey the following rules EXCEPT       ．

       A．blood alcohol limit lowering   B．speed limit obeying

       C．camera location updating D．seat belt wearing

The underlined word ‘‘transparency’’ in the last paragraph is closest in meaning to     ．

       A．honesty        B．openness       C．innocence        D．strictness

Now you can seldom see in France       ．

       A．lunch time last long with drunk people rushing back to office

       B．people drive at a speed of less than 130 km／h

       C．drivers drive according to the traffic lights

       D．police conduct traffic in streets

What is the text mainly about？

       A．The argument on speed cameras

       B The drivers in France hating speed cameras

       C．France does successfully in controlling road accidents

       D．France takes many measures in controlling road accidents

Sandstorms hit northwestern China's Gansu Province and North China's Inner Mongolia Autonomous Region on the first day this year. According to Sun Landong， a meteorologist with the Lanzhou Meteorology Observatory，visibility was less than 100 meters in Minqin， a Gansu county near Inner Mongolia， because of sand. When visibility drops to less than 1 kilometer，it is called a sandstorm. The sandstorm in Minqin blew up dust in neighboring towns， such as Baiyin， Wuwei， Jinchang and Lanzhou， the capital city of Gansu Province. Dust-laden winds also swept into Beijing. Brought by northwesterly blowing at more than 20 meters per second，dust first reached the capital's suburbs at 7 a. m，downtown areas at 9 a. m. The winds，which died down during the night，brought the temperature down to as low as 80C below zero and many flights put off their planned time from the city's airport.

It is quite rare for sandstorms，which are frequent between March and June，to happen in winter，when the earth is frozen. The sandstorms in Gansu and Inner Mongolia do not necessarily mean there will be more of them in the spring than last year，when they were serious，but Beijing is taking it very seriously. It is reported that Beijing will spend 6 billion yuan ( US 725 million) in preventing sandstorms in the capital and has already set up a spe­cial team to make sure what causes them.

1. What is the main idea of the passage?

A. Sandstorms took place in Gansu.

B. Sandstorms happened on the first day of the new year.

C. Sandstorms are very serious，compared to last year.

D. Experts are trying their best to determine the cause of the sandstorm formed this year.

2.Suppose the dust was 300 kilometers away from Beijing， it would reach Beijing about

         hours later if it travels at a speed of 20 meters per second?

A. 4. 2     B. 1. 5     C. 2. 0     D. 2. 5

3.Why did sandstorms begin in the winter this year?

A. Because there was little snow this season.

B. Because a lot of trees have been cut down.

C. Because people took few measures to control them.

D. It is not mentioned in the passage.

4. Which of the following doesn't belong to the bad effect the sandstorms have done in Bei­jing?

A. The temperature fell.    B. Flights put off their time to take off.

C. The air is dirty.    D. People had three days off.

5.The author wrote the passage to        .

A. tell us the environments are becoming worse and worse

B. explain what measures people have taken to control sandstorms

C. make people realize the need to protect the environment.

D. call on us to do what we can to save the earth