1.
READING
Read the following
passage.
For Questions 1-7, choose the answer (A,
B, C or D ) which
you think fits best according to the text.
Many folk cures
which have been around for centuries may be more therapeutic than
previously suspected. A case in point is that of penicillin. Alexander
Fleming did not just randomly choose cheese molds to study when he discovered
this very important bacteria-killing substance. Moldy cheese was frequently
given to patients as a remedy for illness at one time. Fleming just isolated
what was about the cheese which cured the patients.
In parts of South America, a powder obtained from
grinding sugar cane is used for healing infections in wounds and ulcers. This
usage may date back to pre-Colombian
times. Experiments carried out on several hundred patients indicate that
ordinary sugar in high concentrations is lethal to bacteria. Its suction effect
eliminates dead cells, and it generates a glasslike layer which protects the
wound and ensures healing.
Another example of folk medicine which scientists
are investigating is that of Arab fishermen who rub their wounds with a
venomous catfish to quicken healing. This catfish excretes a gellike slime
which scientists have found to contain
antibiotics, a coagulant that helps close injured blood vessels,
anti-inflammatory agents, and a chemical that directs production of a
gluelike material that aids healing.
It is hoped that by documenting these folk
remedies and experimenting to see if results are indeed beneficial, an
analysis of the substances can be made, and synthetic substances can be
developed for human consumption.
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