题目内容：

Rene Laennec was a French doctor who learned to tap on people’s chests to find out illness from an Austrian doctor named Leopold Auenbrugger. As a boy, Leopold used to tap wine1.(contain) in his father’s inn to see how much wine they held. A full one made2.different sound from an empty one. When he became a doctor, he 3. (tap) people’s chests to see how much liquid was in their lungs. Laennec did the same and learned to tell by tapping carefully on a chest 4.it was diseased or not. But he was even more interested 5.diseases of the heart, and he wished that he could hear heartbeats clearly. In those days, a doctor would place his head on a patient’s chest to listen, but if the patient was 6. (extreme) fat it was impossible to hear any heartbeat at all.

One day when Laennec 7.(walk) in the park, he saw some girls playing with a see-saw(跷跷板). One of them scratched the end of the board while the others placed their ears against the other end. On walking up, the doctor was asked why the sounds travelled along the wood. “The sounds are magnified(放大), girls, er…”Suddenly he turned and rushed back to the hospital. Quickly8.(take) some thick paper, he rolled it up like a tube and began listening to patients’ chests. He heard the heartbeats and 9. (they) breathing clearly. Laennec soon made a better instrument of wood, one he called a stethoscope(听诊器). Later, they 10. (make) of steel and rubber.