they would get stuck in the mud."可知，下雨天路上全是泥，开车很困难，他们担心车陷在泥里。

　　2．What does the underlined word "ducking" in Paragraph 3 mean?

　　A．Turning. B．Touching.

　　C．Lowering. D．Hitting.

　　答案与解析：C　词义猜测题。根据第三段的"The passage was... not tall enough to allow us to stand up straight."可知，通道不够高，他们不能抬头，只能猫着腰，"低"头前进。

　　3．Which of the following can best describe the clerk of the drugstore?

　　A．Impatient. B．Careless.

　　C．Hard­working. D．Warm­hearted.

　　答案与解析：D　推理判断题。根据第四段中的"Seeing our entirely wet hair and clothes, she handed each of us a cup of hot water immediately and asked if there was anything wrong with any of us."可知，药店的店员很热心。

　　4．What can we know from the passage?

　　A．The class failed to see the mica mine.

　　B．The weather terribly influenced the trip.

　　C．The teacher was not professional enough.

　　D．The author was not liked by her classmates.

　　答案与解析：A　细节理解题。根据末段的"We all felt we had had a wonderful time, even if we didn't find the mine."可知，作者所在班级并没有找到云母矿。

　　B

　　Charles Darwin lived an unusually quiet life. In 1842, Darwin and his wife Emma moved from London to Kent in southern England to have as little disturbance (烦扰) as possible. They already had two children then, and would go on to have eight more in the country.

　　Darwin had very regular (有规律的) habits. He rose early and went for a walk. After breakfast he worked in his study until 9：30 am, his most productive time of the day, and then read his letters lying on the sofa before returning to work.

At midday he would go for another walk with his dog, stopping at his greenhouse to inspect (查看) his experiments. Then he would go for another walk around an area of woodland. While walking on his