第一节 短文改错(共10小题，满分10分)
本题要求改正所给短文中的错误，对标有题号的每一行作出判断：如无错误，在该行右边横线上画一个勾(√)；如有错误(每行只有一个错误)，则按下列情况改正；该行多一个词：把多余的词用斜线(＼)划掉，在该行右边横线上写出该词，并也用斜线划掉。该行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边横线上写出该加的词。该行错一个词；在错的词下划一横线，在该行右边横线上写出改正后的词。注意：原行没有错的不要改。
No all chance discoveries are made in
76.
laboratories. Some take place in the most
unlikely
77.
places. While walked through a Paris street, Dr.
Rene
78.
Laennec observed some children at play, he
noticed
one child cupping his ear on a old
79.
wooden plank(厚板). Another child at the other end of
the plank was tapping a message to him on
the wood.
Laennec had had trouble that very much
80.
morning tried to hear the heartbeat of one
of
81.
his patients. In the children’s game he
immediately
recognized the principle of the stethoscope(听诊器).
Laennec rushed to home and built the
first
82.
stethoscope through a hollow wooden tube.
Then
83.
he hurried back the hospital to try it on
his patient
84.
it did He was able to listen to his
heartbeat.
85.