题目内容
When a handheld video game runs out of power, all you have to do is plug it in and charge it up. Within a few years, some of you might do the same thing with mom’s car.
Automobile companies are developing vehicles that will plug into electric sockets （插座）, just like many laptops, digital cameras, cell phones and small video game players do. Called “plug-in hybrids （混合动力汽车）,” these cars will get most of their power from electricity. Their drivers will rarely have to stop at gas stations.
The technology is more than just cool. In our automobile-filled world, plug-in vehicles could reduce the amount of gasoline we use. That gas is made from crude oil, which has been kept rising in cost. Plus, driving around in these hybrids may even help the environment. Gas-burning cars produce a lot of carbon dioxide, a type of greenhouse gas. These gases stay in the atmosphere, where they trap heat and cause global warming.
The first company-produced plug-in hybrids could hit the roads by 20l0. But engineers still have a lot of work to do to make the technology practical and inexpensive.
Batteries are the biggest challenge. In the plug-in-hybrid world, Li-ion batteries are getting the most attention. These batteries can store a large amount of energy in a small package, and they last a relatively long time between charges. Li-ion batteries are standard in laptops, cell phones, heart devices and similar portable devices.
But because cars are so big and heavy, it would still require a suitcase-sized Li-ion battery to power about l2km of driving. What’s more, the batteries are extremely expensive.
“A car filled with batteries could go a long distance,” says Ted Bohn, an electrical engineer in
So researchers need to figure out how to make batteries smaller and cheaper, among other questions.
“The answers don’t exist yet,” Bohn says. “As a kid I thought someone someplace knows the answer to everything. All of these questions haven’t been decided. That’s what engineering is about ― making a guess, running tests and fine-tuning results.”
59. The writer wrote this passage with the purpose of __________________.
A. how to charge the handheld video game up
B. explaining a newly-developed battery
C. introducing a new car
D. telling us how to make the new battery cheaper
60. Which is true according to the passage?
A. Plug-in hybrids will do no harm to the environment.
B. Li-lion batteries in laptops can be used on plug-in hybrids.
C. Some companies can produce plug-in hybrids now.
D. Drivers of plug-in hybrids will spend less money on gasoline.
61. From the passage, we can learn _________________.
A. we can buy one of “plug-in hybrids” now
B. all people will buy one after 20l0
C. this kind of car can carry two persons
D. some problems about “plug-in hybrids” remain to be done
How much do you want to pay for a CD by your favorite singer Jay Chou? Five Yuan for a pirated(盗版的) one, or more for a real one? Wang Ye, 14, said she would like the real one although the pirated one is cheaper.” A real one is worth keeping for years.” said the girl from No.1 middle school in Wu Han, Anhui. “Real CDs always sound better to me.”
What can we do? People want to do more to help those like Wang to get real CDs.
This week the International Federation of the Phonographic Industry asked many countries to act against piracy(盗版行为).
In many places in China, the government is checking audio and video products. Pirated ones are broken into pieces.
Piracy is in your daily life. Don’t believe it? A study by 21st Century Teens found that more than 75 percent of juniors had listened to pirated music. They say this is because pirated products are usually much cheaper than the real ones.
Why are real CDs so expensive? When a music company makes music, it needs to pay the song writers and singers. It costs a lot of money! This makes the price of the CDs go up. Piracy like stealing. People who make pirated copies of CDs take away the writers’ and singers’ work without paying them. They even don’t ask them if they can.
So next time you’d better keep your eyes brightened when you see cheap CDs. Remember you’re helping someone to do something wrong if you buy them.
How do you know what’s real.
Already made up your mind to buy real ones? Well, you should get to know what real CDs look like. A real CD has the name and trademark(商标) of the music company on the cover. The company’s address, telephone number and fax number are on it.
If you open the CD box you'll see the singer's name and the album title. Most important of all, a real CD has a number from the IFPI on it.
But people who make pirated CDs only need the real CD and disks to copy them. That’s why some CDs are only five Yuan, but some many sell for 150 Yuan.
【小题1】Real CDs are more expensive because ______.
| A．it takes longer to make them |
| B．more people are needed to make them |
| C．a lot of money is paid to singers and writers. |
| D．better ways are used to make them |
| A．stealing |
| B．robbing |
| C．helping someone to do something wrong |
| D．helping someone |
| A．moved away | B．doing something wrong | C．broken | D．made smaller |