II. Cloze: Choose the most appropriate word for each of the blank in the following passages.
(A)
Harold Ridley was an English ophthalmologist. He developed a 21 way of helping people
with poor eyesight as a result of cataracts. During World War II, Ridley worked with RAF pilots with
eye injuries. He noticed that their eyes did not become 22 when they had eye injuries caused
by bits of Perspex from the windows of their planes. As a result of this observation, he decided to
23 plastic lenses in the eyes of people with cataracts. Surgeons had earlier tried replacing the
lenses in the eye with a glass one, but the 24 always failed because the body rejected the glass
lens. Ridley's operations with plastic lenses were successful. However, the medical community 25
Ridley's discoveries and it took many years for the technique to be accepted. Today over 200 million
people have their sight because of Harold Ridley.
【題組】22. (A) infect (B) infecting (C) infection (D) infected
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