单选题A. for B. on C. stress D. profits E. made F. connection G. take H. indicating I. benefits J. sufficient K. efficient L. habits M. as N. improved O. emphasizing In the recent past, medical research have shown that heart disease is associated with certain factors in our day-to-day lives: with stress, with smoking, with poor nutrition, and with a lack of exercise. Doctors and other health experts have been 42 the fact that we can often reduce the risk of heart disease by paying more attention to these factors. More and more people are realizing that there is a 43 between heart disease and the way they live. As a result of this new awareness, attitudes towards health are changing. In the past, people tend to think that it was 44 for good health to have a good doctor who could be relied on to know exactly what to do when they become ill. Now they are realizing that merely receiving the best treatment 45 illness and injury is not enough. They are learning that they must 46 more responsibility for their own health. Today many people are changing their dietary 47 and eating food with less fat and cholesterol. Many are paying more attention to reducing 48 in their lives. The number of smokers in the US is now far below the level of a lot of years ago 49 many people succeed in breaking the habit and as fewer people take it up. More and more are aware of the 50 of regular exercise like walking, running or swimming, some have begun to walk or ride bicycles to work instead of driving. Millions have become members of health clubs and have 51 health club one of the fastest growing businesses in the US today. And now the beneficial effects of these changing attitudes and behaviors are beginning to appear: an encouraging decrease in deaths from heart disease.

单选题 'I hope you could listen to your mother; she is the one who will always behind you.' The past tense used in the sentence refers to ______.

单选题 Grandfather had sustained a broken back while working in the mines. ______, he spent the rest of his life in a wheelchair.

单选题 In recent years much more emphasis has been put ______ developing the students' productive skills.

单选题 Keep this reference book; it may come in ______ one day.

单选题 That you cannot feel the movement of earth does not mean that the earth is really ______.

单选题 Jenny has done some stupid things before, but this really takes the biscuit! The underlined part means ______.

单选题 —Must I finish it before 10 o'clock? —No, you ______.

单选题 The computer I bought last week is not expensive at all. In fact, I would gladly have paid ______ for it.

单选题 A hibernating animal needs hardly any food all through the winter, ______?

单选题 The shop assistant guaranteed that the antique is ______, not a very good fake.

单选题 Total color blindness, ______, is the result of a defect in the retina.

单选题 If you ______ in such a hurry you ______ sugar into the sauce instead of salt.

单选题 There is a new problem involved in the popularity of private cars ______ road condition needs ______.

单选题 In the movie, the bridegroom escapes to a rural tourist destination after ______ at the altar by his girlfriend.

单选题 ______ the persons concerned had anything important to say.

单选题 Much as ______, I couldn't lend him the money because I simply didn't have that much spare cash.

单选题 Xinchun returned from abroad a different man. The italicized part functions as a(n) ______ in the sentence.

单选题 Britain has the highest ______ of road traffic in the world—over 60 cars for every mile of road.