Big schoolbags have been a big problem for students for a long time. Maybe your schoolbag is too1 to carry, and it troubles you a lot 2 you want to find a book to read. Now e-textbooks will 3 you.
It is said that many Chinese middle schools are going to use e-textbooks. An e-textbook in fact, is a small 4 for students. It much lighter than a usual schoolbag and 5 to carry. Though it is as 6 as a book, it can hold(容纳) everything for study. The students can read the text page by page on the 7 take notes 8the pointer(屏写笔), or even "hand in" their9 to their teachers by sending emails
All they have to do is press a button.
Some people say e-textbooks are good, but some say they may be10 for the students' eyes. What do you think of them?
Vision—phones(可视电话)
Many inventions are very useful in our daily life. They have greatly changed our life. For example, radios, telephones and televisions are widely used in the world. When you turn on the radio, you can listen. But when you use the telephone, you can not only listen to others but also chat with them. However, you can't see anything at all. The television is much better than both of them. People can watch TV and listen to it, but they can't take part in what they see.
Today, some people are using a type of telephone called the vision phone. With it two people can see each other when they are talking
Vision-phones can be of great use when you have something to show the person when you are calling him or her. It may also have other uses in the future. Some day you may be able to call up a library and ask to read a book over your vision-phone. You may be able to do some shopping through it too. Perhaps in the future, the vision-phone will come into wide use in our everyday life.
An American boy has made a cheap machine that can help blind people read.
The blind can read by using Braille-a system of small bumps (隆起物) that the blind touch to read the letters. The machine that makes these small bumps usually costs at least $2,000. It is called Braille typewriter. The American schoolboy, Shu ham Banerjee, made a new Braille typewriter from a Lego tool that lets people create robots. Banerjee has called his new machine the Braigo-a combination(组合) of the words Braille and Lego. It costs just $350. It works by changing electronic texts into Braille and then printing it using a computer or a mobile machine.
Banerjee designed (设计) his Braigo for a school science project. Since then, he has caught the interest of Silicon Valley in the USA. The big technology company Intel spent money on Banerjee's machine in November, but they did not say how much money they put in. Banerjee also got $ 35,000 from his father to help him start the project. His father works as a computer engineer (工程师) at Intel. He spoke about why he gave so much money to his son, saying, started to be interested more, thinking that he's on to something and this invention has to continue, dream would probably be having most of the blind people use my Braigo.
要求: 语法正确, 语言通顺, 80词左右, 可根据提示内容适当发挥。
提示:
1). 水陆两用汽车: 既可以在陆地上跑, 也可以在水下跑;
2). 这种汽车两侧有两个翅膀, 下面有四个轮子, 在地面上时, 跟普通汽车一样, 但在水下时, 四个轮子会隐藏在车底, 两侧的翅膀会变为两个船桨促使汽车前行;
3). 比一般的汽车更方便、更省油; 节约资源, 减少污染。
生词提示: hide (隐藏), resource (资源), paddle (桨)
