大学英语2 练习题(4)

大学英语

53. Teachers should encourage students to rely more on .

A) books B) notes C) tutors D) themselves

54. Learning strategies are unobservable mental processes, so teachers should make them .

A) simpler B) more familiar C) more concrete D) more applicable

55. Which of the following statements is true?

A) Students learn learning strategies from the teachers only.

B) Learning strategies are completely unobservable.

C) Students need to explore new learning strategies for themselves.

D) Teachers are the sole judges of students’ progress.

Passage Two

During sleep, the fatigue (疲劳) of the body disappears and recuperation (恢复) begins. The tired mind gathers new energy. Once awake, the memory improves, and annoyance and problems are seen in a better perspective.

Some adults require little sleep; others need eight to ten hours in every twenty-four. Infants sleep sixteen to eighteen hours daily and, as they grow older, the amount gradually diminishes. Young students may need twelve hours; university students may need ten. A worker with a physically demanding job may also need ten, whereas an executive worker under great pressure may manage on six to eight. Many famous people are reputed to have required little sleep. Napoleon, Thomas Edison and Charles Darwin apparently averaged only four to six hours a night.

Whatever your individual need, you can be sure that by the age of thirty you will have slept for a total of more than twelve years. By that age you will also have developed a sleep routine: a favorite hour, a favorite bed, a favorite position, and a formula you need to follow in order to rest comfortably.

Investigators have tried to find out how long a person can go without sleep. Several people have reached more than 115 hours-nearly five days, whereas animals kept awake for from five to eight days have died of exhaustion. The limit for human beings is probably about a week.

56. According to the passage, the sleeping routine will be built at the age of .

A) 10 B) 20 C) 30 D) 40

57. The writer implies that .

A) sleep is important for good mental and physical healthB) a light sleep is as restful as a deep sleep

C) memory is improved during sleep D) sleep is relatively unimportant for human beings

58. The amount of sleep required .

A) varies greatly from individual to individual B) depends on an individual’s age

C) relates to an individual’s occupation D) all of the above.

59. From the amount of sleep napoleon, Edison and Darwin required, we can infer that .

A) they were famous great men B) they were executive workers

C) they were intelligent people D) they were involved in mentally demanding work

60. From animal experiments, we can conclude that the final result of the lack of sleep is probably .

A) mental illness B) mental breakdown C) susceptibility to illness D) death

Passage Three

You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you