教学过程 step 1 pre－listening before the students listen，ask them to discuss the following questions： 1．do you know what braille is? 2．what is it used for? 3．how does it work? 4．do you know what the chinese system of braille looks like？(see page 53 for some hints.) suggested answers： braille is a system by which blind people can read by feeling raised dots on a page.both english and chinese system of braille use six dots.their forms are similar，but their meanings are different.that's to say，chinese blind people can't understand the english system of braille. [设计说明]在听力训练正式开始前，在班级里组织讨论，激活学生的背景知识，有利于随后进行的关于盲文创始人路易斯·布莱尔的生平介绍的听力训练顺利展开。如果学生的背景知识比较贫乏，教师可以对盲文作一个简单的介绍。 step 2 listening task 1．paul's teacher has asked everyone in the class to prepare a talk about a great inventor.listen to paul's talk about louis braille.then answer the following questions： (1)what country did louis braille come from? (2)what disability did he have? (3)what did books for the blind look like when louis was a boy? (4)what were the two problems with the books for the blind? (5)what invention gave louis the idea for his system? (6)what advantages do you think louis's system has? suggested answers： (1)he came from france. (2)he was completely blind. (3)they were ordinary books with letters raised up off the page. (4)the letters were huge and difficult to read，and the books were very expensive. (5)a system for soldiers to send and receive messages in the dark. (6)i think braille system has the advantage of being easy to learn，and so it is easy to produce books of normal size.it helps make blind people independent because they can read as much as sighted people do.