If you think texting(发短信) while walking is dangerous, just wait until everyone starts wearing Google's smart, Internet-connected glasses. These glasses can do anything you now need a smartphone or tablet computer(平板电脑) to do —and then some.
    In Google's video, a guy wearing the "Project Glass" is shown getting subway information, making an appointment with a friend for coffee and showing the directions in a bookstore, all with the help of the glass. It ends with him playing an instrument for a woman and showing her the sunset through a video chat.
    The "Project Glass" Google displayed have a sleek(光滑的) wrap-around look and appear nothing like 3-D glasses. In development for a few years, the project is the idea of Google X, the online search-leader's secret department that produced the self-driving car and could one day send elevators into space.
    Google posted the video and short blog post about “Project Glass” on April 4^th, asking people to offer feedback(反馈) through its Google Plus social network. By April 5^th, about 500 people did, voicing a mix of amazement and concern about the new technology. What if people used it in cars and could not concentrate on driving? What about the effect on(对……有影响) your sight of having a screen so close to your eye?
    Some asked for the glass, but Google isn't giving those out just yet. The company didn't say when normal people can expect to get their hands on a piece of Project Glass, but going by how quickly Google will come out with new products, it may not be long. Enderle said that it could be about six months to a year before wide tests are coming, and a year or more for the first version(版本) of the product.

The Internet is becoming important in our life. How much do you know about it?

What is the Internet?

The Internet is a large, world-wide collection (聚集) of computer networks( 网络). A network is a small group of computers put together. The Internet is many different kinds of networks from all over the world. These networks are called the Internet. If you have learned to use the Internet, you can have a lot of interest on the World Wide Web(网)

What is the World Wide Web?

The World Wide Web has been the most popular development of the Internet. The Web is like a big electronic (电子) book with millions of pages. These pages are called homepages. You can find information about almost anything in the world on these pages. For example, you can use the Internet instead of a library to find information for your homework. You can also find information about your favourite sport or film star, talk to your friends or even do some shopping on the pages. Most pages have words, pictures and even sound or music.

What is e-mail?

Electronic mail (e-mail) is a way of sending messages to other people. It' s much quicker and cheaper than sending a letter. If you want to use e-mail, you must have an e-mail address. This address must have letters and dots (点) and an" @ " (means "at"). For example: Lily @ Yahoo, com. Write a message, type a person's e-mail address, then send the message across the Internet. People don't need to use stamps, envelopes  or go to the post office since the invention of the Internet . Quick, easy and interesting — that' s the Internet .

    The human brain is divided into two sides, or hemispheres, called the right brain and the left brain. The two hemispheres work together, but each one specializes in certain ways of thinking.

    Each side has its own way of using information to help us think, understand, and process informa—tion.The left side of the brain controls language. It is more verbal and logical. It names things and puts them into groups. It uses rules and likes ideas to be clear, logical, and orderly. It is best at speech, reading, writing, and math. You use this side of the brain when you memorize spelling and grammar rules or when you do a math problem.

    The right side of the brain is more visual and creative. It specializes in using information it receives from the senses of sight, sound, smell, touch, and taste. This side of the brain likes to dream and experiment. It controls your appreciation of music, color, and art. You use this side when you draw a picture or listen to music.Although we all use both sides of our brains, one side is usually stronger or dominant. Some people are more “left—brained,” and others are more “right—brained”. Our dominant side influ—ences the kinds of jobs and hobbies we have. Politicians, artists, architects, and musicians depend on their right brains. Accountants, engineers, doctors, and lawyers usually rely on their left brains.

    Animals can move from place to place, but plants cannot. When an animal is under attack, it can run away or fight back. Plants certainly cannot run away, and they have no teeth or claws. But plants can protect themselves in both physical and chemical ways.

    Some plants have their own ways to keep animals away. For example, the leaves of the holly(冬青) have sharp prickles(刺) that discourage grass-eating animals. Holly leaves on lower places have more prickles than leaves on upper places. This is because the lower leaves are easier for most animals to reach. Some plants, such as the oak trees(橡树), have thick and hard leaves that are difficult for animals to eat. Some grasses may contain a sandy material, and eating such grasses wears down the animals' teeth. Many plants also have chemical defenses. Some plants produce chemicals that taste bitter(苦) or cause an unpleasant reaction. Some plants may fight against an attack by increasing the production of these chemicals. When a worm bites a tobacco leaf (烟叶), the leaf produces a chemical smell. Many plants depend on both physical and chemical defenses. A certain plant in China, for instance, has prickly leaves, and each prickle has poisonous water(毒液). Only one experience with this kind of plant will teach an animal to stay away from it in the future.