2．From the passage we can see that "astronomy"is ．

　　A．the life experience of great men

　　B．the movement of the stars and the planets

　　C．the scientific study of natural objects in space

　　D．the theories developed by scientists of old times

　　C　[推理判断题。由第二、三段可知，哥白尼研究天文学即研究太阳周围的行星。由此推出答案。]

　　3．Copernicus developed his theory .

　　A．using various telescopes

　　B．based on Aristotle's beliefs

　　C．through observations and reasoning (推理)

　　D．under the encouragement of his friends

　　C　[推理判断题。由第三段第四、五句可知，哥白尼是通过观察和推理来发展自己的理论的。]

　　4．The writer of the passage tells us that ．

　　A．Copernicus did not tell about his discovery until the day of his death

　　B．for many years Copernicus dared to do nothing openly against the Church

　　C．pushed by his friends Copernicus decided to write a book in May 1543

　　D．shortly before he got back to Poland Copernicus started to work for the Church

　　B　[推理判断题。由最后两段可知，哥白尼多年来一直没有宣布自己的理论，直至晚年才敢出版著作。]

　　IV完形填空

　　A doctor entered the hospital in a hurry after being called in for an urgent 1 ．He answered the call as soon as possible，changed his clothes and went directly to the operation block.He found the boy's father 2 in the hall waiting for the doctor.On seeing him，the dad 3 ，"Why did you take all this 4 to come? Don't you know that my son's life is in danger? Don't you have any sense of 5 ？"

The doctor smiled and said，"I am sorry.I wasn't in the hospital and I 6 as