问题 单项选择题

乙肝病毒属于()

A.杯状病毒

B.嗜肝DNA病毒

C.缺陷病毒

D.黄病毒

E.微小RNA病毒

答案

参考答案:B

解析:乙肝病毒属于嗜肝DNA病毒,有3个抗原抗体系统。丙肝病毒属于黄病毒,是单股正链RNA病毒。

阅读理解

Churchill's full name was Winston Leonard Spencer Churchill. He was born in 1874. He was educated at Harrow School and the Royal Military College, Sandhurst.

In 1900 Churchill was elected a member of parliament .As First Lord of the Admiralty , in 1911, he was responsible for strengthening the British navy.

During World War I, he still remained a member of parliament, but he resigned from his post in the British navy, and became a soldier again, fighting in France. In 1917, however, he became Minister of Munitions . In this job, he encouraged the development and use of the tank, which was then a new weapon. After the war, Churchill held several government posts.

From 1931 to 1939, he was only a member of parliament. He had fallen into dislike because of his militant (war-loving) attitude. Even his closest friends discouraged him from seeking higher office. But when World War II started in 1939. Churchill returned to his former job as First Lord of the Admiralty.

In May 1940, he became Prime Minister. Throughout the war, Churchill showed great strength and energy. He worked for long periods with little sleep and traveled many thousands of miles. By the courage and determination expressed in his speeches, he inspired the people of Britain to keep on fighting. His speeches also gave hope to people in parts of Europe occupied by enemy forces.

In the general election at the end of the war, the Conservative Party, of which he was leader, was defeated. But he became Prime Minister again in 1951. He resigned as Prime Minister in 1955. However, he remained a member of parliament until 1964. Some time later, in 1965, he died.

小题1:Before World War I, Churchill worked for his country as ____.

A.headmaster of Harrow School

B.a leader of the Britain Navy

C.a leader of the Conservative Party

D.Prime Minister of Britain小题2:How many times was Churchill elected Prime Minister?

A.One.

B.Two.

C.Three.

D.Four.小题3:What can we learn from Para. 4?

A.In 1938 Churchill left the parliament.

B.Churchill's closest friends were against his attitude toward war.

C.Churchill's closest friends always inspired him to seek higher office.

D.Churchill and his closet friends served in the army before World War II.小题4:We can know all the following from the text EXCEPT that ____.

A.Churchill gave up as Prime Minister in 1955

B.Churchill once became a soldier, fighting in France

C.Churchill's speeches encouraged the British people to keep on fighting

D.Churchill led his army to fight bravely and defeated the enemy in World War I

填空题