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.
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.
假设你的朋友Tom写信向你询问你最近的学习生活状况,请你以Li Hua的身份给Tom回信,内容应包括以下要点:
注意:字数120词左右;可适当发挥,使上下文连贯;
1. 目前的学习生活状况。
2. 高中的苦与乐,对未来的打算。
3. 英语学习方面有困难,希望得到一些帮助。
4. 邀请对方来中国游玩,期盼早日收到回信。
Dear Tom,
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
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Yours’
Li Hua
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词;
删除:把多余的词用斜线(\)划掉;
修改:在错的词下画一横线,并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词;2.只允许修改10处,多者(从第11处起)不计分。
Today I'd like to shares my personal experience in improving our English writing skills. The ability to write in English is becoming increasing important in English communication as well as in examinations. Thus, it was worth focusing our attention on.
In order to write a good essay, we should have a excellent command of over 2,000 frequently-used English word. It's necessary and useful for them to read or even recite beautiful English articles. Beside, as the saying goes, that practice makes perfect, so we should take every possible chance to write in English. According my personal experience, keep a diary every day is a good means to achieve the aim
阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Many animals and humans recognize their food because they see it. You can also use other senses when you choose your food. You may like it because it 1.(smell) good. You may dislike some types of food because they do not look or taste very nice.
Some animals spend their lives eating only one type of food even when 2.(give) the choice. The giant panda eats only one particular type of bamboo. A kind of white butterfly will stay on the 3.(leaf) of a cabbage, even though there are a number of other vegetables 4. the garden. However, most animals have a wide 5.(various) of diets. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diets of these animals are different 6.(depend) on the season.
Humans often eat food not because it is good for us 7. because we like it. In countries such as France and Britain, people eat food with too much sugar, 8. is bad for their health. Eating too much red meat and animal products is 9.(harm) to health. Choosing the right food, therefore, 10.(become) an area of study in modern in recent years.
A passenger told an air hostess that he needed a cup of water to take his medicine when the plane just took off. She told him that she would _______the water in ten minutes.
Thirty minutes later, when the passenger’s ring for _______ sounded, the air hostess realized it at once. She was kept so _______ that she forget to deliver him the _______ . As a result, the passenger was _______ to take his medicine. She hurried over to him _______ a cup of water, but to her surprise he _______ it.
In the following hours on the _______ , each time the air hostess passed by the _______ , she would ask him with a ________ whether he needed help or not. But the passenger ________ paid attention to her words.
When he was going to get ________ the plane, the passenger asked the air hostess to ________ him the passenger’s booklet(意见簿). She was very ________ . She knew that he would write down ________ words, which might result in the loss of her job. ________ with a smile she handed it to him.
Off the plane, she ________ the booklet and cracked a smile, ________ the passenger put it, “On the flight, you asked me whether I needed help or not for twelve times ________ . How can I refuse your twelve sincere smiles?”
That’s ________ ! Who can refuse twelve sincere smiles from a person?
1.A.take B.bring C.carry D.hold
2.A.food B.drink C.service D.medicine
3.A.tired B.silent C.calm D.busy
4.A.water B.help C.milk D.warning
5.A.held on B.held up C.held out D.held down
6.A.for B.about C.with D.in
7.A.refused B.accepted C.liked D.hated
8.A.seat B.air C.floor D.flight
9.A.customer B.passenger C.guest D.visitor
10.A.glance B.look C.smile D.cry
11.A.never B.often C.always D.seldom
12.A.on B.to C.off D.from
13.A.hand B.take C.throw D.lend
14.A.glad B.angry C.curious D.sad
15.A.important B.sharp C.polite D.nice
16.A.So B.Because C.And D.But
17.A.hid B.tore C.opened D.closed
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