V. Read the following text and use the words given in the box to fill in the blanks.
transmitting Although principle began
receiving his been time
The telegraph and telephone are both wire-based electrical systems, and Alexander Graham Bell’s success with the telephone came as a direct result of his attempts to (1) _____________ the telegraph. When he (2) _____________ experimenting with electrical signals, the telegraph had (3)_____________ an established means of communication for some 30 years. (4)_____________a
highly successful system, the telegraph was basically limited to (5)_____________ and sending one message at a time.
Bell’s extensive knowledge of the nature of sound and (6) _____________ understanding of music enabled him to conjecture the possibility of (7) _____________multiple messages over the same wire at the same time. Although the idea of a “multiple telegraph” had been in existence for some (8)_____________, no one had been able to fabricate one – until Bell. His “harmonic telegraph” was based on the (9) _____________ that several notes could be sent simultaneously along the same wire if the notes or signals (10) _____________ in pitch.
V. Read the following text and use the words given in the box to fill in the blanks. transmitting Although principle began receiving his been time The
By Audrey
1.improve
2.began
3.been
4.Although
5.recieving
6.his
7.transmitting
8.time
9.principle
10.differed.
The telegraph and telephone are both wire-based electrical systems, and Alexander Graham Bell’s success with the telephone came as a direct result of his attempts to (1) improve the telegraph. When he (2) began experimenting with electrical signals, the telegraph had (3) been an established means of communication for some 30 years. (4) Although a highly successful system, the telegraph was basically limited to (5) receiving and sending one message at a time. Bell’s extensive knowledge of the nature of sound and (6) his understanding of music enabled him to conjecture the possibility of (7) transmitting multiple messages over the same wire at the same time. Although the idea of a “multiple telegraph” had been in existence for some (8) time, no one had been able to fabricate one – until Bell. His “harmonic telegraph” was based on the (9) principle that several notes could be sent simultaneously along the same wire if the notes or signals (10) differed in pitch.