2013在职工程硕士英语阅读理解练习及答案十五

1、2013在职工程硕士英语阅读理解练习及答案十五 After a busy day of work and play, the body needs to rest. Sleep is necessary for good health. During this time, the body recovers from the activities of the previous day. The rest that you get while sleeping enables your body to prepare itself for the next day.There are four

2、 levels of sleep, each being a little deeper than the one before. As you sleep, your muscles relax little by little. Your heart beats more slowly, and your brain slows down. After you reach the fourth level, your body shifts back and forth from one level of sleep to the other.Although your mind slow

3、s down, from time to time you will dream. Scientists who study sleep state that when dreaming occurs, your eyeballs begin to move more quickly (although your eyelids are closed). This stage of sleep is called REM, which stands for rapid eye movementIf you have trouble falling asleep, some people rec

4、ommend breathing very slowly and very deeply. Other people believe that drinking warm milk will help make you drowsy. There is also an old suggestion that counting sheep will put you to sleep!1. A good title for this passage is _.A. SleepC. DreamsB. Good HealthD. Work and Rest参考答案：A2. The word drows

5、y in the last paragraph means _.A. sickC. asleepB. stand upD. a little sleepy参考答案：D3. This passage suggests that not getting enough sleep might make you _.A. dream more oftenC. nervousB. have poor healthD. breathe quickly参考答案：B4. During REM, _.A. your eyes move quicklyC. you are restlessB. you dream

6、D. both A and B参考答案：D5. The average number of hours of sleep that an adult needs is _.A. approximately six hoursC. about eight hoursB. around ten hoursD. not stated hereIn ancient times the most important examinations were spoken, not written. In the schools of ancient Greece and Rome, testing usual

7、ly consisted of saying poetry aloud or giving speeches.In the European universities of the Middle Ages, students who were working for advanced degrees had to discuss questions in their field of study with people who had made a special study of the subject. This custom exists today as part of the pro

8、cess of testing candidates for the doctors degree.Generally, however, modern examinations are written. The written examination, where all students are tested on the same question, was probably not known until the nineteenth century. Perhaps it came into existence with the great increase in populatio

9、n and the development of modern industry. A room full of candidates for a state examination, timed exactly by electric clocks and carefully watched over by managers, resembles a group of workers at an automobile factory. Generally, during examinations teachers and students are expected to act like m

10、achines.One type of test is sometimes called an objective test. It is intended to deal with facts, not personal opinions. To make up an objective test the teacher writes a series of questions, each of which has only one correct answer. Along with each question the teacher writes the correct answer a

11、nd also three statements that look like correct answers to students who have not learned the material properly.1. In the Middle Ages students _.A. took objective testsB. specialized in one subjectC. were timed by electric clocksD. never wrote exams参考答案：D2. The main idea of paragraph 3 is that _.A. w

12、orkers now take examinationsB. the population has grownC. there are only written examsD. examinations are now written and timed参考答案：D3. The kind of exams where students must select answers are _.A. personalB. spokenC. objectiveD. written参考答案：C4. Modern industry must have developed _.A. before the Mi

13、ddle AgesB. around the 19th centuryC. in Greece or RomeD. machines to take tests参考答案：B5. It may be concluded that testing _.A. should test only opinionsB. should always be writtenC. has changed since the Middle AgesD. is given only in factories参考答案：CIs teaching important? Well, of course it is. Ther

14、e was a time when the necessary knowledge could be taught to the young by family members. But as societies became more complex and division of labor more common, it was impossible for family members to teach the information and skills young people needed to become useful members of the society. As t

15、he need for specialists appeared, the job of teaching came into being in our country, and teaching as a job has been of increasing importance over the past hundred years. Today, we have strict rules for teachers. We hope all children can attend schools. Many things tell us that teaching is indeed an

16、 important job.In recent years, there has been an increasing need for teachers to be responsible. This means that the public expects teachers to succeed in teaching important information to the young. Teachers salaries today, while not much, certainly are much higher than they were in years past. Th

17、ese increases have come about because people have realized that without enough salaries, people who have abilities will not become teachers. Today almost no one says that anybody will do for a teacher. The public expects quality people to teach the young, and progress is being made to give salaries

18、that will make people who have abilities become teachers.1. Before the job of teaching came into being, _ .A. family members had been responsible for the education of the youngB. specialists had been in charge of teaching young peopleC. young people had had to be self-educatedD. the society had play

19、ed an important role in educating young people参考答案：A2. The job of teaching came into being mainly because of _ .A. the development of the societyB. the explosion of informationC. The need for specialistsD. the civilization of human beings参考答案：C3. Teachers salaries are raised today in order to _ .A.

20、show the importance of teaching as a jobB. attract more qualified people to become teachersC. make teachers responsible in their teachingD. improve the quality of public teaching参考答案：B4. Anybody will do for a teacher means that _ .A. almost all people want to become a teacherB. a teacher is so highl

21、y respected that people all want to help himC. a teacher will do whatever he can for his studentsD. the job of teaching is so easy that everybody can do it参考答案：D5. We know from the passage that _ .A. it is important to be successful in teaching the youngB. enough salaries are necessary in making qua

22、lity people become teachersC. greater progress has to be made in teachingD. teaching is a product of the societys division of labor参考答案：BIsraeli researchers said they had identified a naturally produced compound that may explain why only some smokers get lung cancer.Researchers found that smokers wi

23、th low levels of the enzyme were five to 10 times more likely to develop lung cancer than smokers with the highest levels.The enzyme fixes damage done to DNA by smoking and other environmental stresses and is one of a large group of repair compounds in the body.Writing in the Journal of the National

24、 Cancer Institute, Zvi Livneh and his colleagues said 40 per cent of the 68 lung cancer patients they tested had low levels of enzyme activity, in contrast to 4 per cent of a healthy group of 68 people.Non-smokers with the lowest levels of enzyme also had a higher risk of lung cancer, although their

25、 overall risk of cancer was much lower than that of the smokers.Lung cancer is by far the biggest cancer killer in the world, killing a million people every year worldwide.Smoking is also a major cause of heart disease and stroke. The researchers said the findings needed to be confirmed in larger studies but they may lead to the development of a blood test that smokers could take to determine their personal risk. 2091. What is Israeli researchers discovery?A. A naturally produced compound B