Brushes made from the first hair taken from a baby's head was believed to bring good luck in the Imperial examinations.

We can conclude from the first two paragraphs that whether a male practices monogamy of polygamy depends on ______.

A．the amount of nurturing the young

B．the sex of offspring

C．the attractiveness of his female partner

D．the time of conception

Which kind of movies did Tom like to see?

A．The movies he had seen.

B．The movies made from stories he had read in the books.

C．The movies about dogs.

Smallpox was the first widespread disease to be eliminated by human intervention. A highly contagious viral disease, it was endemic in Europe, causing the death of millions of people until the development of vaccination by Edward Jenner around 1800. In many non- European nations, it remained a dreaded, often fatal illness until very recently.

In May 1966, the World Health Organization (WHO), an agency of the United Nations, was authorized to initiate a global campaign to eradicate smallpox. The goal was to eliminate the disease in one decade. At the time, the disease posed a serious threat to people in thirty nations. More than 700 physicians, nurses, scientists, and other personnel from WHO joined about 200,000 health workers in the infected nations to battle the disease. Because similar projects for malaria and yellow fever had failed, few believed that smallpox could actually be eradicated, but eleven years after the initial organization of the campaign, no cases were reported in the field.

The strategy was not only to provide mass vaccinations but also to isolate patients with active smallpox in order to contain the spread of the disease and to break the chain of human transmission. Rewards for reporting smallpox assisted in motivating the public to aid health workers. One by one, each smallpox victim was sought out, removed from contact with others and treated. At the same time, the entire village where the victim had lived was vaccinated.

By April 1978, WHO officials announced that they had isolated the last known case of the disease, but health workers continued to search for new cases for two additional years to be completely sure. In May 1980, a formal statement was made to the global community. Today smallpox is no longer a threat to humanity. Routine vaccinations have been stopped worldwide.

Which of the following is the best title for the passage?

A．World Health Organization

B．Eradication of Smallpox

C．Smallpox Vaccinations

D．Infectious Diseases

Which of the following statements BEST describes Mrs. Macphail?

A．She was good at making friends.

B．She was prone to quarrelling with her husband.

C．She was skillful in dealing with strangers.

D．She was easy to get along with.

Why did the writer wish to go to bed at first?

A．His uncle's stories made him sleepy.

B．He thought his uncle's stories would be boring.

C．He was really tired from the long journey.

D．He had the habit of going to bed early.