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One of the questions surrounding climate...

    One of the questions surrounding climate change is how it might affect the food supply for a growing global population. A new study suggests that researchers have been overlooking how two key human responses to climate—how much land people choose to farm, and the number of crops they plant—will affect food production in the future. The new study focused on the Brazilian state of Mato Grosso, an emerging(新兴的)global breadbasket(产粮地区)that as of 2013 supplied 10 percent of the world’s soybeans. The researchers used variations in temperature and precipitation(降水)across the state over an eight-year period to estimate the sensitivity of the region’s agricultural production to climate change. Those historical comparisons can help in making predictions about the sensitivity of agriculture to future climate change.

The study found that, if the patterns from 2002 to 2008 hold in the future, an increase in average temperature in Mato Grosso of just 1 degree will lead to a 9 to 13 percent reduction in overall production of soy and corn. “This is worrisome given that the temperature in the study region is predicted to rise by 2 degrees by 2050,” said Avery Cohn, who led the study.

Most studies of this kind look only at the extent to which climate shocks affect crop output. But researchers can miss critical dynamics(动力)that can affect overall output, says Leah VanWey, one of the study’s senior authors. “If you look at output alone, you’re not looking at all of the information because there are economic and social changes going on as well,” said VanWey.

If output decreases, farmers may put less land area into production because it’s not profitable. Farmers may also vary the number of crops they plant in a growing season. Double cropping is common in Mato Grosso. But if the weather is bad, farmers may change their decision to plant a second crop.

1.The value of the new study lies in _________.

A.increasing the number of crops people plant

B.focusing on an emerging global breadbasket

C.making predictions about human responses to climate change

D.controlling people’s choice of their farming area and crop numbers

2.According to Avery Cohn, by 2050, the overall production of soy and corn will _________.

A.remain almost unchanged B.decrease by more than 9%

C.increase by from 9% to 13% D.decrease by more than 18%

3.What can we know about the similar studies mentioned in paragraph 3?

A.They can’t provide exact information to farmers.

B.They don’t take into consideration some key factors.

C.Their discouraging results largely affect overall crop output.

D.They pay too much attention to economic and social changes.

4.What is the last paragraph mainly about?

A.Farmers’ possible reactions to climate shocks.

B.Possible climate change in Mato Grosso.

C.The benefits of double cropping in Mato Grosso.

D.Farmers’ decision on planting crops in the future.

 

1.C 2.D 3.B 4.A 【解析】 本文为说明文,文章主要讲述了气候变化对农业的影响可能被低估。 1.细节理解题。根据文章第一段最后一句Those historical comparisons can help in making predictions about the sensitivity of agriculture to future climate change.可知此研究的意义在于帮助预测农业对未来气候变化的敏感性,即人类对气候变化的反应,所以C正确。 2.细节理解题。根据文章第二段The study found that, if the patterns from 2002 to 2008 hold in the future, an increase in average temperature in Mato Grosso of just 1 degree will lead to a 9 to 13 percent reduction in overall production of soy and corn. 可知温度升高一度,导致大豆和玉米减产9%-13%。而根据“This is worrisome given that the temperature in the study region is predicted to rise by 2 degrees by 2050,可知道2050年会升高2度,因此,减产量会在18%-26%之间,所以D正确。 3.细节理解题。根据文章第三段But researchers can miss critical dynamics(动力)that can affect overall output, says Leah VanWey, one of the study’s senior authors.可知之前的研究忽视了影响总产量的关键动力,所以B正确。 4.主旨大意题。根据最后一段三个farmers may 可知此段介绍了如果气候变化,产量减少,农民们可能的反应,所以A正确。
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Public Gardens

From rich rainforests to dryland gardens, the Hawaiian Islands feature gardens that display plants from nearly every climatic zone. The gardens featured in this leaflet represent a sampling of the botanical wonders you will find throughout the islands.

Kaua'

McBryde Garden

4425 Lawa'i Road

Koloa, Hawaii 96756

(808)742-2623

http://ntbg.org/

Formerly a sugar plantation, McBryde Garden is a green 252-acre valley garden with extensive plantings of palms, native plants, and early Polynesian introductions. McBryde serves as a research and conservation garden and is next door to Allerton Garden. Open daily. Call for hours and admission fees.

Big Island

Akaka Falls State Park

Highway 220

Hilo, Hawaii

Located at the end of Highway 220, just eleven miles west of Hilo, the park's star attraction is its namesake waterfall, plunging more than four hundred feet to a pool below. Green, jungle-like paths snake through the garden, requiring visitors to climb down several steep staircases. An excellent location for an afternoon picnic. Open from dawn to dusk. No entrance fee.

O'ahu

Ho'omaluhia Botanical Garden

45-680 Luluku Road

Kane'ohe, Hawaii 96744

(808)233-7323

http://www.co.honolulu.hi.us/parks/hbg/hmbg.htm

Ho'omaluhia displays plantings from the major tropical regions with a special emphasis on native Hawaiian plants. More than 400 acres of gardens with a jaw-dropping view of the Ko'olau Mountains. Open daily from 9 a. m. to 4 p. m., except some holidays. No entrance fee. Campgrounds with bathroom facilities are provided free of charge. Guided nature hikes are offered.

1.What was McBryde Garden used to be?

A.A popular campsite. B.A sugar plantation.

C.A research facility. D.An ideal place for picnic.

2.Which of the following is the closest in meaning to the underlined word “jaw-dropping”?

A.Shocking. B.Enormous. C.Interesting. D.Extraordinary.

3.What do the gardens listed in the leaflet have in common?

A.All of the gardens open daily throughout the year.

B.None of the gardens charges admission fees.

C.All of the gardens can serve other purposes than a garden for visitors.

D.Visitors can find all the three gardens on the same island.

 

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15.A.important B.sharp C.polite D.nice

16.A.So B.Because C.And D.But

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18.A.if B.for C.after D.when

19.A.in all B.above all C.or else D.or so

20.A.wrong B.wonderful C.impossible D.right

 

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