The word “day” has two meanings. When we talk about the number of days in a year, we are using “day” to mean 24 hours. But when we talk about day and night, we are using “day” to mean the time between sunrise and sunset. Since the earth looks like a ball, the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long. The sun rises at 6 o’clock in the morning and sets at 6 o’clock in the evening. For six months the North Pole is tilted（倾斜）toward the sun. In those months the Northern Hemisphere（半球）gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.

（   ）6.When the Western Hemisphere is having day, the Eastern Hemisphere is having ________.

　　     A. both day and night              B. day

　　     C. neither day nor night            D. night

（   ）7. A place is moved from day into night and from night into day over and over by ________ of the earth.

　　     A. the pushing                    B. the pulling

C. the spinning                    D. the passing

（   ）8. At the equator day is as long as night ________.

　　        A. sometimes     B. never       C. usually        D. always

（   ）9. When the North Pole is tilted toward the sun, the Northern Hemisphere gets ________ sunlight.

　　    A. less           B. more       C. all            D. no

（   ）10. When it is winter in China,  ________.

　　    A. the USA is tilted toward the sun

　　    B. the South Pole is tilted away from the sun

　　    C. the North Pole is tilted toward the sun

　　    D. the North Pole is tilted away from the sun

阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中选出最佳选项。

Norman Bethune is one of China’s most famous heroes, but he wasn’t Chinese—he was Canadian. He gave his life to helping the Chinese people.

Norman Bethune 46　 born in 1890. He became a 47　 in 1916, and he went to the front to look after injured soldiers in the First World War. He saw many soldiers die in the war. Later he invented new treatments to 48 soldiers, and medical tools to use outside hospital.

In 1938 he came to treat the Chinese soldiers in the mountains north of Yan’an. There were 49 doctors, so he had to work very hard. He opened hospitals to give treatment to local people and soldiers, and to train doctors and nurses. He also wrote books so that doctors could learn about new treatments.

Dr Bethune worked very hard without stopping to 50　 . Once, he preformed operations 　51 69 hours without stopping, and saved 112people. He 　52 working in spite of cutting his hand during an operation. In the end, he died because he did not take care of his 　53 .

Dr Bethune’s work with the Chinese soldiers made 54　 a hero in China. There are books and films about him, and he is 55　 remembered in both Canada and China.

46. A. is　　　 B. was　　 C. has been　 D. be

47. A. doctor　 B. nurse　 C. teacher　　 D. worker

48. A. understand B. believe C. help　　　 D. count

49. A. little　 B. few　　 C. much　　 D. many

50. A. rest　　 B. act　　 C. agree　　　 D. think

51. A. from　 B. since　　 C. with　　　 D. for

52. A. allowed B. continued C. forgot　　 D. stopped

53. A. face　　 B. leg　　　 C. foot　　　 D. hand

54. A. his　　 B. he　　　 C. him　　　 D. one

55. A. still　　 B. never　　 C. hardly　　 D. Regularly

The word “day” has two meanings. When we talk about the number of days in a year, we are using “day” to mean 24 hours. But when we talk about day and night, we are using “day” to mean the time between sunrise and sunset. Since the earth looks like a ball, the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long. The sun rises at 6 o’clock in the morning and sets at 6 o’clock in the evening. For six months the North Pole is tilted（倾斜）toward the sun. In those months the Northern Hemisphere（半球）gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.

1.When the Western Hemisphere is having day, the eastern Hemisphere is having ________________.

A. both day and night　　　 B. day 　 　 C. neither day nor night　　D. night

2.A place is moved from day into night and from night into day over and over by _______________ of the earth.

A. the pushing　　 B. the pulling　　 C. the spinning　　 D. the passing

3.At the equator day is as long as night _______________.

A. sometimes　　 B. never　　　 　 C. usually　　　 　 D. always

4.When the North Pole is tilted toward the sun, the Northern Hemisphere gets _______________ sunlight.

A. less　　　　　 B. more　　　　 C. all　　　　　　 D. no