associated with different diseases, you should always see a medical professional if you are concerned about something you notice.

4. What is the main idea of the passage?

A. Doctors can tell us something about our health by looking at our nails.

B. We should see a doctor if we find nails in bad condition.

C. A famous doctor in the USA conducted an interesting research.

D. If we don't want to get ill, we need to clean and stop biting our fingernails.

5. If we don't eat well or regularly, our fingernails may ________.

A. become harder than normal nails.

B. become thinner than normal nails.

C. become "half-and-half" nails.

D. have horizontal and vertical lines.

6. Who will have horizontal lines on the nails ?

　　A. A cancer patient who has received normal treatment.

　　B. Hungry African children suffering from severe malnourishment.

　　C. An explorer who had reached Zhangjiajie in Hunan Province.

　　D. A patient with serious illness, like kidney and liver problems.

7. Which of the following best describes the nails that show people lack iron?

　　A. The nails are thinner and more likely to break.

　　B. The nails will curve down and cover the fingers.

C. The nails will start to rise up on the sides and front.

　　D. The nails will change their colours on the surface.

Jane Austen, a famous English writer, was born at Steventon, Hampshire, on December 16, 1775, and died on July 18, 1817. She began writing early in life, although the prejudices of her times forced her to have her books published anonymously ( 匿名 ).

But Jane Austen is perhaps the best known and best loved of Bath's many famous local people and visitors. She paid two long visits here during the last five years of the eighteenth century and from 1801 to 1806, Bath was her home. Her deep knowledge of the city is fully seen in two of her novels, Northanger Abbey and Persuasion, which are largely set in Bath. The city is still very much as Jane Austen knew it, keeping in its streets and public buildings the well-ordered world that she described so well in her novels. Now the pleasure of learning Jane Austen's Bath can be enhanced (增强)by visiting the Jane Austen Centre in Gay Street. Here, in a Georgian town house in the heart of the city, you can find out more about Bath in Jane Austen's time and the importance