13．A doctor was once teaching a class of medical students at a famous hospital in Edinburgh．An injured（受伤） man was brought in，and the doctor turned to one of his students and asked him，"What's wrong with this man？"
"I don't know，sir，"the student answered．"Should I examine him and find out？"
"There is no need to examine him，"said the doctor．"You should know withont asking questions．He has hurt his right knee．didn't you notice the way he walked？He hurt it by burning it in the fire．You see his trousers leg is burnt away at the knee．This is Monday morning．Yesterday was fine，but on Saturday the roads were wet and muddy（泥泞的）．The man's trousers are all muddy，he fell down on Saturday night．"
The doctor then turned to the man and said，"You had your pay on Saturday and went to a public house and drunk too much．You got muddy and wet on the way home．Because you had drunk too much，you fell on the fire and burnt your knee．Is that right？"
"Yes，sir．"said the man．
64．The medical students were having a lessonC
A．at the library．B．in a classroom．C．at a well-known hospital D．in a medical school
65．the man hurt his kneeC
A．on Monday B．on Sunday night C．on Saturday night D．yesterday
66．Which is the right order according to the passage？D
①He burnt his knee
②He got drunk
③He fell down and got muddy
④He had his pay
A．①②③④B．④③②①C．③④①②D．④②③①
67．From the passage we know thatA is very important for medical students
| A．Watching and thinking | B．taking good care of others |
| C．Learning from others | D．teaching． |
