[填空题]By 2000, life expectancy at birth in most developing countries increased from about 35-40 years in 1950 to ______.

[填空题]By 2000, life expectancy at birth in most developing countries increased from about 35-40 years in 1950 to ______.

[填空题]A. a longer life expectancy for most people
B. artists are adroit in dealing with their painting subject
C. engage in the medical profession
D. careful study and experimentation
E. the chief centers for medical care in most countries
F. science and technology

Doctors are skillful in dealing with patients just as______.

[填空题]

• A. a longer life expectancy for most people
• B. artists are adroit in dealing with their painting subject
• C. engage in the medical profession
• D. careful study and experimentation
• E. the chief centers for medical care in most countries
• F. science and technology

Doctors are skillful in dealing with patients just as______.

[单项选择]In (its) life expectancy, (although) in most (other) things, the Sun is a (typical) star.
A. its
B. although
C. other
D. typical

[单项选择]

I have always found country life most (76) . The city, a place for business is only to be visited; it is not an ideal place for (77) residence. People may say that the city can provide you with the best (78) life can offer.
Your friends are always (79) for an informal chat or an evening’s entertainment. The (80) exhibitions, films or plays are always within easy reach. Shopping, too, is always a pleasure. But what about the hustle and bustle of city life The city dweller neverhas a moment (81) peace; he is always (82) . And what about the noise and pollution of the city Day and night the city is in uproar with its unceasing traffic. The air is polluted with poisonous gases emitted by the smokestacks of factories.
Country life is in many aspects (83) city life. For one thing, the people there are friendly. People are (84) with one another. You can never (85) receive a friendly nod

[单项选择]

People tend to underestimate their life expectancy, and it’s not surprising. It’s the look around problem again: You generalize from life spans of older friends and family members and figures that’s what’s in store for you, too. But in an era of rapidly improving life expectancy, the look-around method once again gives the wrong answer.
Life expectancy at age 65 today is 15.6 additional years for woman. For both sexes, this represents an increase of more than two years just since 1970. By the time the youngest baby boomers turn 65, the Social Security Administration projects that life expectancy at that age could be as high as 18 more years for men and 21 years for women. Note that everyone runs very nearly a 50 percent "risk" of living longer than their life expectancy.
That reality makes retirement planning exceptionally difficult. On the day a husband and wife turn 65, they may have only a year or two of living between them to
A. To decide one’s life span according to one’s family members and friends.
B. To look around to find a better place to live.
C. To try to discover the best way to live longer.
D. To try to find a better college for your children.

[填空题]In what situation, American life expectancy probably ranks in line with New Zealand

[单项选择]

Life Expectancy in the Last Hundred Years

A. and B. leading to C. from D. with

[单项选择]

Life Expectancy in the Last Hundred Years

A. spread B. affected C. produced D. created