Alexander Graham Bell was born in Scotland in 1847. His father, an expert on speech, developed a way of teaching how words (17)__________ be pronounced. He translated the (18)__________ of words into straight or curvy lines. His brother was also associated with work on speech.
As a young child, Alexander, like his brothers, received his early schooling at home from his father. His main interest remained in the sciences, especially biology. Later, Alexander (19)__________ to be a teacher and, when his mother went deaf, he started to be (20)__________ in how deaf people communicate. In 1870, because his children were in poor health, Alexander and his family (21)__________ to the United States. He hoped that a warmer climate would be better for the whole family. It was while he was teaching deaf children there (22)__________ he invented a new machine. It was very similar to the human ear itself, and Bell discovered it could carry human speech through a wire from one place to another.
- A. ought B. should C. might D. would
- A. calls B. voices C. noises D. sounds
- A. trained B. became C. educated D. taught
- A. amazed B. interested C. surprised D. excited
- A. went B. moved C. flew D. arrived
- A. so B. be C. since D. that
