This term we will __________ a new teaching plan.（initiate)

By the end of this term, we______3,000 English words in all.

A．will learn

B．will have learned

C．have learned

D．had learned

You are now the proud owner of a Dustfree vacuum cleaner. This product will provide you with years of___7___service and quality performance. We offer you a lifetime guarantee___8___any defects in material and workmanship. If you do experience any of these problems with your product we will fix the machine at no cost to you or we will provide you with a new product at no additional charge. Please visit our Web site and give us your mailing address and a short description of the problem. We will then have a service representative___9___the cleaner at your convenience. However, we do not cover willful or accidental damages.

This product will provide you with years of___7___service

A.relying

B.rely

C.reliable

D.relied

If Maureen is transferred to the Washington bureau, we will have to hire a new employee to replace______.

A．she

B．her

C．hers

D．herself

We______ that we will meet a certain amount of resistance to our short-term plan.

A．monitor

B．manifest

C．articulate

D．anticipate

We ___ eighteen lessons by the end of this term.

A、have studied

B、had studied

C、will be studying

D、will have studied

Although we have______not to offer you a position at this time, we will keep your resume on file for future openings.

A．decided

B．deciding

C．decision

D．decidedly

We hope this unfortunate incident will not affect the friendly relations between us.()

Exactly where we will stand in the long war against disease by the year 2050 is impossible to say. (111) But if developments in research maintain their current pace, it seems likely that a combination of improved attention to dietary and environmental factors, along with advances in gene therapy and protein-targeted drags, will have virtually eliminated most major classes of disease.

From an economic standpoint, the best news may be that these accomplishments could be accompanied by a drop in health-care costs. (112) Costs may even fall as diseases are brought under control using pinpointed, short term therapies now being developed. By 2050 there will be fewer hospitals, and surgical procedures will be largely restricted to the treatment of accidents and other forms of trauma (外伤). Spending on nonacute (慢性病的) care, both in nursing facilities and in homes, will also fall sharply as more elderly people lead healthy lives until close to death.

One result of medicine's success in controlling disease will be a dramatic increase in life expectancy. (113) The extent of that increase is a highly, speculative matter, but it is worth noting that medical science has already helped to make the very old (currently defined as those over 85 years of age) the fastest growing segment of the population. Between 1960 and 1995, the U. S. population as a whole increased by about 45%, while the segment over 85 years of age grew by almost 300%. (114) There has been a similar explosion in the population of centenarians, with the result that survival to the age of 100 is no longer the newsworthy feat that it was only a few decades ago. U. S. Census Bureau projections already forecast dramatic increase in the number of centenarians in the next 50 years: 4 million in 2050, compared with 37, 000 in 1990.

(115) Although Census Bureau calculations project an increase in average life span of only eight years by the year 2050, some experts believe that the human life span should not begin to encounter any theoretical natural limits before 120 years. With continuing advances in molecular medicine and a growing understanding of the aging process, that limit could rise to 130 years or more.

(81)