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Crop Problem
Advances
in technology have helped more of the world’s population live better and longer,
and that is part of our problem[
Better health standards have
kept larger number of people alive. The world’s population is now almost four
billion and expected to double in 25 years. Growing population and slowly rising
living standards have increased our need for food at the rate of 30 million tons
per year. As a result, the world’s stockpile of food(食物储备) is declining by about
10 million tons per year.
From the early 1950s until 1972 ,world
food production increased greatly. The Green Revolution (绿色革命) extended
scientific techniques to agriculture in the form of hybrid seed (杂交种)and poultry
(禽类), chemical fertilizers (化学肥料)
A. the United States will be able to feed half the world by 2025
B. the future will see no more hunger
C. we will encounter very serious problem in the near future
D. the developed nations will change in the near future
更多"下面有3篇短文，每篇短文后有5道小题。请根据短文内容，为每题确定1个最"的相关试题:
[单项选择] 下面有3篇短文，每篇短文后有5道小题。请根据短文内容，为每题确定1个最佳选项。 {{B}}第一篇{{/B}}
|
Crop Problem
Advances
in technology have helped more of the world’s population live better and longer,
and that is part of our problem[
Better health standards have
kept larger number of people alive. The world’s population is now almost four
billion and expected to double in 25 years. Growing population and slowly rising
living standards have increased our need for food at the rate of 30 million tons
per year. As a result, the world’s stockpile of food(食物储备) is declining by about
10 million tons per year.
From the early 1950s until 1972 ,world
food production increased greatly. The Green Revolution (绿色革命) extended
scientific techniques to agriculture in the form of hybrid seed (杂交种)and poultry
(禽类), chemical fertilizers (化学肥料)
A. 2,000,000,000
B. 4,000,000,000
C. 6,000,000,000
D. 8,000,000,000
[单项选择] 下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。 第一篇
A Society Without
a Formal Authority
In the seventeenth century, European
soldiers who came across some Indian groups in the western Great Lakes found
that several native tribes (部落) were living in the area without a formal
leadership system. They appeared to be "quite friendly with each other without a
formal authority
Not only did the Indians appear to lack a
formal system of authority, but they also deeply hated any efforts to control
their actions. All members of the tribes knew what was required of them by
lifelong (一生的) familiarity with the tasks of the area. These tasks tended to be
simple, since the Indians’ rate of social change was slow. Thus, although
subgroups such as soldiers had recognized leaders, no real authority was
required. Rather than giving
[单项选择] 下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。 {{B}}第一篇{{/B}}
{{B}}Losing
Weight{{/B}}
Girls as young as 10 years old are dieting and in
danger of developing unhealthy attitudes about weight, body image and food, a
group of Toronto researchers reported Tuesday.
Their study of
2,279 girls aged 10 to 14 showed that while the vast majority had healthy
weights, nearly a third felt they were overweight and were trying to lose
pounds. Even at the tender ages of 10, nearly 32 per cent of girls felt "too
fat" and 31 per cent said they were trying to diet.
McVey, a
researcher at the Hospital for Sick Children in Toronto, and her colleagues
analyzed dam collected in a number of surveys of southern Ontario school girls
between 1993 and 2003, reporting their findings in Tuesday’s issue of the
Canadian Medical Association
A. Nearly 80 percent.
B. 7.2 percent.
C. Nearly 30 percent.
D. 10.5 percent.
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