communicate. Fiber optics are improving the quality and speed of data transmission. Actually, your ability to access this information relies upon telecommunications technology. Bell's "electrical speech machine" paved the way for the Information Superhighway.

2. Reading for forms

Read the text ALEXANDER GRAHAM BELL on page 25 to: cut/ the sentence into thought groups, blacken the predicates, darken the connectives and underline all the useful collocations.

3. Copying and making sentences

Collocations are useful for you to learn to express in English. So you shall go over the text again to copy down all the useful collocations.

Collocations from ALEXANDER GRAHAM BELL almost entirely deaf几乎全聋, become interested in...对......感兴趣, help deaf people do...帮助聋人做......, in deaf education从事聋人教育, in such a way that...以一定的方式, leave...occasionally偶尔离开, dive into...深入到......, follow... up跟踪......, explore all around...不断探索......, think about...思考......, occupy one's mind占据某人的头脑, the result of thought思考的结果, explore around problems探索问题,a multiple telegraph多路电报, send a message over distances跨距离传递信息, use Morse code用莫尔斯电码, a series of...一系列......, tap... out击打出......,in a particular order以特定的次序, go at a time一次......, send several messages at the same time同时发出几个信息, design a machine设计一种机器, separate different sound waves分离不同的声波, allow...to be done允许......被......, at the same time同时, solve problems解决问题, experiment with...做......实验, be joined to...连接到......,speak into the ear对着耳朵说话, draw sound waves on a piece of smoked glass把声波画在被烟熏过的玻璃上, have a flash of inspiration灵机一动, be reproduced in a moving electrical current以连续运动的电流形式复制, be sent along a wire沿着导线传送, improve the telegraph改进电报, be fully aware of...完全意识到......, be laid on to houses铺到各家, send the telephone message to...传送电话信息给......, interest oneself in many other areas of...对其它许多领域感兴趣, search for..寻找......, carry...into the air把......带上天空, put...together拼装......, prove invaluable证明是无价的, in the design of bridges在桥梁设计中, all one's life一生, make one's first invention第一项发明, at the advanced age of seventy-five yeas old在75岁高龄时, be known for...因......而闻名, in truth的确, a continuing searcher after practical solutions to do...一名永不停息的......探索家, improve the quality of everybody's life改善人们生活质量