NEW YORK (Reuters) — Global warming has cut about $5 billion worth of value from the world
英语试题 05-19
NEW YORK (Reuters) — Global warming has cut about $5 billion worth of value from the world’s most commonly grown grains over 20 years, according to a new study.
Warming temperatures from 1981 to 2002 cut the combined production of wheat corn and other crops by 40 million tons per year. “Contrary to what most people think, this study shows that warming over the past two decades has already affected global food supply. The effect is not a faraway thing,” said Christopher Field, a co-author on the study, the first to estimate how much global food production has already been affected by climate change.
Not every scientist agrees that agriculture is suffering from warmer temperatures. A UN report said warming is expected to turn the planet a bit greener by encouraging plant growth, but crops and forests may wilt beyond mid-century if temperatures keep rising.
Average global production for several of the crops suffered from warmer temperatures, with production dropping by about 3-5% for every 1°F increase, the study said. Average global temperatures increased by about 0.7°F during the study period, with even larger changes in several regions.
“If the past is an indication, agriculture will also suffer going forward,” Field said. “We expect future warming to continue to be a drag on grain production, like driving with the parking brake engaged.” The study said the cereal crops hit by global warming account for 55% of non-meat categories consumed by humans and they also contribute more than 70% of the world’s animal feed.
“Farmers can adapt to warmer temperatures by changing crop planting times, the varieties they grow, or the locations used for each crop,” Field said. “In the past farmers have been very adaptable to environmental challenges, but adaptation to warming can take years.”
8. It is commonly thought that global warming ______.
A. will have a bad effect on human beings’ present life
B. is something that will just affect the future
C. is becoming more and more serious
D. will soon lead to great decrease in food supply
9. The underlined word “wilt” in the third paragraph probably means “______”.
A. increase B. grow taller
C. stay the same D. grow badly
10. According to Field, we can learn that ________.
A. agriculture will not suffer a lot from global warming
B. grain production will increase despite global warming
C. grain production will be affected by global warming
D. farmers can increase crop production by changing crop planting times
11. This passage mainly tells us that __________.
A. the future food supply will change with global warming
B. global warming reduces global food production
C. traditional agriculture will disappear due to global warming
D. global warming prevents the growth of plants and grains
【答案】
Warming temperatures from 1981 to 2002 cut the combined production of wheat corn and other crops by 40 million tons per year. “Contrary to what most people think, this study shows that warming over the past two decades has already affected global food supply. The effect is not a faraway thing,” said Christopher Field, a co-author on the study, the first to estimate how much global food production has already been affected by climate change.
Not every scientist agrees that agriculture is suffering from warmer temperatures. A UN report said warming is expected to turn the planet a bit greener by encouraging plant growth, but crops and forests may wilt beyond mid-century if temperatures keep rising.
Average global production for several of the crops suffered from warmer temperatures, with production dropping by about 3-5% for every 1°F increase, the study said. Average global temperatures increased by about 0.7°F during the study period, with even larger changes in several regions.
“If the past is an indication, agriculture will also suffer going forward,” Field said. “We expect future warming to continue to be a drag on grain production, like driving with the parking brake engaged.” The study said the cereal crops hit by global warming account for 55% of non-meat categories consumed by humans and they also contribute more than 70% of the world’s animal feed.
“Farmers can adapt to warmer temperatures by changing crop planting times, the varieties they grow, or the locations used for each crop,” Field said. “In the past farmers have been very adaptable to environmental challenges, but adaptation to warming can take years.”
8. It is commonly thought that global warming ______.
A. will have a bad effect on human beings’ present life
B. is something that will just affect the future
C. is becoming more and more serious
D. will soon lead to great decrease in food supply
9. The underlined word “wilt” in the third paragraph probably means “______”.
A. increase B. grow taller
C. stay the same D. grow badly
10. According to Field, we can learn that ________.
A. agriculture will not suffer a lot from global warming
B. grain production will increase despite global warming
C. grain production will be affected by global warming
D. farmers can increase crop production by changing crop planting times
11. This passage mainly tells us that __________.
A. the future food supply will change with global warming
B. global warming reduces global food production
C. traditional agriculture will disappear due to global warming
D. global warming prevents the growth of plants and grains
【答案】
苏19057182-3号