.

Millions of people will be able to track each and every move by friends and family through their mobile phones，thanks to a new feature launched by Google yesterday．

The new system named “Latitude” uses a map to show exactly where a loved one is at any time, sometimes discovering their location to a few meters．Worried parents will be able to check up on where their children have got to after school, friends can meet for a quick drink if they see they are nearby and wives will be able to see if their husbands really are working late at the office．

The feature was made available immediately on millions of mobile phones that can access the web，such as the Black Berry．Within weeks Google hopes to launch a new one that will also work on computers as well．

“Once you've shared your location，you can hide it from all of your friends at once，or you can turn off Google Latitude completely at any time．” said a Google spokesman．“You can adjust your privacy settings in Latitude so that you share as much or as little about your location as you want，with whom you want．”

Google said that the company had tested the product with thousands of people to make sure that it was safe for the customers，but experts were not so sure．Simon Davies，director of Privacy International，said Latitude would open up a “privacy minefield（危险地带）”．

“It's about the little white lies．You might be avoiding going to work, and now your boss might be able to see that you're at Twickenham instead of at home．”said Ian Angell, an information expert at the London School of Economics．“You've already got mobile phone technology where husbands and wives track each other in secret．Now Google is so widely used that it will only worsen the situation．”

60. According to Google，the new system “Latitude” can ___________．

A．prove that the partner has told a lie about working late

B．tell the parents the locations of their children after school

C．provide the friends with the most suitable pub for a drink

D．help people find what their loved ones are doing at any time

61. The underlined word “it” in Paragraph 5 probably refers to ___________．

A．the new system                                      B. the Google company  

C.  the mobile phone                               D. the privacy minefield

62. From the passage，we know that Ian Angell believed ___________．

A．Latitude keeps husbands and wives in good relationship

B．Google tricked all its customers to make more money

C．with Latitude more privacy problems would come up

D．privacy settings could protect your personal information

63. The best title of the passage might be ___________．

A．Google Allows You to Track Friends' and Families' Every Move  

B．Google and BlackBerry Open the New Webs to Their Customers

C．Latitude Working on Computers is Being Developed by Google

D．Latitude Sets a Good Example on Mobile Phone Privacy Settings

As the population of the planet increases, so does the number of homes, businesses, parking lots, schools, airports and roadways. All these structures use electricity and need to be lighted. Humans demand these lights. They want their homes more comfortable and they want their streets sage. The problem is that researchers are finding that all the light is having a negative effect on humans and wildlife as well.

Less than 10 years ago I drove to a thinly populated section of my town, lay down in the middle of the road and watched an attracted meteor shower(流星雨). The area was short of homes, street lights and traffic. If I did that today, I wouldn’t be able to see the meteor shower as well, and I would surely be run over by a car.

Nowadays scientists are finding light pollution can be almost as bad as carbon dioxide pollution. If you’ve ever taken a flight at night, the view is beautiful, but you must remember that all the light you see is wasted electricity. The crew of the space shuttles see an even bigger picture of how extensive the wasted electricity is worldwide.

Additionally, electricity needs to be generated, and the generation of electricity creates pollution by giving off greenhouse gases. This affects the air we breathe and our quality of life.

Scientists are also studying the effects of light pollution on wildlife. Thousands of birds die each year when they crash into highly lighted buildings, as they become puzzled by the light. It has been long known that tiny sea turtle hatchlings become lost and follow lights on the shore instead of heading towards the sea.

    Fortunately, light pollution is one of the easiest sources of pollution that can be corrected without a negative effect. Following some guidelines and a little searching on Google can give you many ideas on how to reduce your contribution to light pollution. 

1.The author tells the story in the second paragraph mainly to _________.

     A. remember the past beauty of the town.

     B. stress the advantages of less pollution

     C. show the great changes of the town

     D. prove the bad effects of light pollution

2.In the passage the author advises people _________.

     A. to try to reduce unnecessary light.

     B. not to ignore the beauty around.

     C. to set proper light for animals

     D. not to destroy the animal’s living conditions.

3.What can be inferred from the passage?

     A. Light pollution is difficult to deal with.

     B. Light pollution is a threat to some animals.

     C. Light pollution has nothing to do with global warming

     D. Astronauts can’t see clearly in space due to light pollution.

4.What is most likely to be discussed in the paragraph which follows the last paragraph?

     A. The author’s contribution to light pollution

     B. Other sources of light pollution

     C. Ways of reducing light pollution

     D. More bad effects of light pollution

1 

Just as the world’s most respected scientific bodies have confirmed that the world is getting hotter, they have also stated that there is strong evidence that humans are driving the warming. Countless recent reports from the world’s leading scientific bodies have said the same thing. For example, a 2010 summary of climate science by the Royal Society stated that: “There is strong evidence that the warming of the Earth over the last half-century has been caused largely by human activity.”

The idea that humans could change the planet’s climate may be counter-intuitive, but the basic science is well understood. Each year, human activity causes billions of tons of greenhouse gases to be released into the atmosphere. As scientists have known for years, these gases hold heat that would otherwise escape to space, wrapping the planet in an invisible blanket.

Of course, the planet’s climate has always been changing thanks to “natural” factors such as changes in solar or volcanic activity, or cycles relating the Earth’s going around the sun. According to the scientific literature, however, the warming recorded to date matches the pattern of warming we would expect from a build-up of greenhouse gas in the atmosphere – not the warming we would expect from other possible causes.

Even if scientists did discover another reasonable explanation for the warming observed so far, that would beg a difficult question. As Robert Henson puts it in The Rough Guide to Climate Change, “If some newly discovered factor can account for the climate change, then why aren’t carbon dioxide and the other greenhouse gases producing the warming that basic physics tells us they should be?”

The only way to prove with 100% certainty that humans are responsible for global warming would be to run an experiment with two identical Earths – one with human influence and one without. That obviously isn’t possible, and so most scientists are careful not to state human influence as an absolute certainty.

1. In most scientists’ opinion, the global warming is mainly caused by ________.

A. solar activity                                                 

B. volcanic activity      

C. the Earth’s going around the sun                  

D. human activity

2.. The text is developed by ________.

A. giving typical examples

B. following the order of space

C. analyzing a theory and arguing it

D. comparing and finding differences

3. The underline word “identical” means ________.

A. totally different                                                      

B. exactly the same

C. extremely important                                      

D. relatively independent

4. Which of the following can be the best title?

A. Are All the Scientists Really Scientific?

B. Where Is Global Warming Leading Us to?

C. Are Humans Definitely Causing Global Warming?

D. What’s Relation of Global Warming and Greenhouse Gases?

After years of hearing drivers complain about scratches on their cars, Japan's Nissan Motor Company has officially announced the next big thing---a paint that not only resists scratches and scrapes, but actually repairs itself within a few days.

The new material, developed by Nippon Paint Company, contains an elastic rubbery-like resin(弹性树脂) that is able to heal minor marks caused by car wash equipment, parking lot encounters, road debris (石头碎片) or even on-purpose destruction. The automaker admits its results vary depending on the temperature and the depth of the damage, but adds this is the only paint like it in the world, and tests prove it works. Minor scratches, the most common type, are said to slowly fade over about a week. And once they're gone, there is no trace that they were ever there. The special paint is said to last for at least three years after it is first applied, but there is no word yet on whether more can be added after that period.

Nissan claims car washes are the worst offenders for this type of damage, accounting for at least 80 percent of all incidents. But the complete auto-healing won't come without scratching your wallet. The vehicle maker notes the special paint adds about $ 100 U.S. to the price of a car. It plans to use its new chemical mixture only on its X - Trail SUVs in Japan for now, as it looks for a more widespread presentation. And while plans to offer the feature overseas haven't been made yet, if it's a hit there, you can be almost sure market forces will drive it to these shores, as well.

1.From the article, we can find that_______.

2.The paint used on cars can______.

3.What can be inferred from the article?

At one time, computers were expected largely to remove the need for copies of documents because they could be stored electronically. But for all the texts that are written, stored and sent electronically, a lot of them are still ending up on paper.

It is difficult to measure the quantity of paper used as a result of use of Internet-connected computers, although just about anyone who works in an office can tell you that when e-mail is introduced, the printers start working overtime. “I feel in my bones this revolution is causing more trees to be cut down,” says Ted Smith of the Earth Village Organization.

Perhaps the best sign of how computer and Internet use pushes up demand for paper comes from the high-tech industry itself, which sees printing as one of its most promising new markets. Several Internet companies have been set up to help small businesses print quality documents from a computer. Earlier this week Hewlett-Packard Co. announced a plan to develop new technologies that will enable people to print even more so they can get a hard copy of a business document, a medical record or just a one-line e-mail, even if they are nowhere near a computer. As the company sees it, the more use of the Internet the greater demand for printers.

Does all this mean environmental concerns (环境问题) have been forgotten? Some activists suggest people have been led to believe that a lot of dangers to the environment have gone away. “I guess people believe that the problem is taken care of, because of recycling (回收利用),”said Kelly Quirke, director of the Rainforest Action Network in San Francisco. Yet Quirke is hopeful that high-tech may also prove helpful. He says printers that print on both sides are growing in popularity. The action group has also found acceptable paper made from materials other than wood, such as agricultural waste.

1．The growing demand for paper in recent years is largely due to        .

       A．the rapid development of small businesses         

       B．the opening up of new markets   

       C．the printing of high quality copies             

       D．the increased use of the Internet

2．Environmentalists believe more one possible way of dealing with the paper situation is     .

       A．to encourage printing more quality documents     

       B．to develop new printers using recycled paper   

       C．to find new materials for making paper     

       D．to plant more fast-growing paper

3．Hewlett-Packard Co. has decided to develop new technologies because        .

       A．people are concerned about the environment  

       B．printers in many offices are working overtime  

       C．small companies need more hard copies  

       D．they see a growing market for printers

4．What would be the best title for the text?

       A．Computers and Printers               B．E-mail and the Business World

       C．Internet Revolution and Environment  D．Modern Technology and New Markets