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3． _______the Great Green Wall，the land produces more crops
．
A．Thanks for
B．Thanks to
C． Thank to
D． Thank for
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更多 “ 3． _______the Great Green Wall，the land produces more crops．A．Thanks forB．Thanks toC． Thank toD． Thank for ” 相关考题
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My classmates and I () the Great Wall the day before yesterday.
A.visitedB.visitC.did visited
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We think of the Great Wall of China _______ one of the wonders of the world.
A. toB. likeC. withD. as
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A ______people come to visit the Great Wall every day.A. large amountB. great deal ofC. good manyD. large quantity
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Later, about 122A.D., in order to keep back the Picts and Scots, the Romans built a wall, called ().
A.Great wallB.Wailing WallC.Hidden WallD.Hadrian Wall
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As a man with plenty of guts, he is the person who is expected to bring success to this company which is on the verge of bankruptcy.
A、the great white hopeB、the great red hopeC、the great green hopeD、the great black hope
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BScientists are trying to make the deserts into good land again． They want to，bring water to the deserts． But more and more places of the earth is becoming deserts all the time， Scientists may not be able to change the deserts． Scientists think that people make deserts． People are do-ing bad things to the earth．Some places on the earth don-t get very much rain． But they still don-t become deserts．This is because some green plants are growing there． Small green plants and grass are very helpful to dry places． Plants don't let the wind blow the earth away． When 8 little bit of rain falls，the plants hold the water． Without plants，the land can become a desert much more easily．( )26． Why can the land become a desert?A． Because some places don't get very much rain．B． Because plants don-t let the hot sun make the earth even drier．C． Because people don't keep the earth well．D． Because scientists haven-t learnt enough about the deserts．
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Since the Great Depression,the United States government has protected farmers from damaging crops in grain pnces.A:slight
B:surpnsing
C:sudden
D:harming
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They bought the land in order to build a new office block.A:with a purpose to
B:with a view to
C:with a goal to
D:with a reason to
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The Great Wall is a great tourist attraction，luring millions of visitors each year from all over the world?A:attracting
B:entertaining
C:receiving
D:serving
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单选题We may infer from the fourth paragraph that ______.A
humans have been growing food crops more than ten thousand years.B
humans have learned how to produce biofuels for a long time.C
humans are just on the beginning of making biofuels.D
a cell wall includes four hemicellulose.
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单选题The example of the roses emphasizes the _____.A
the difficulty for ethical consumers to identify green productsB
the necessity of giving more information to ethical consumersC
the importance of making the right choice in green consumptionD
the controversy of whether or not to continue green consumption
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问答题Male students emit more heat than female students do, and the larger a student is, the more heat he produces.
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单选题We all agreed to her suggestion that we _____ to the Great Wall for sightseeing.A
will goB
goC
shall goD
should have gone
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问答题Practice 2 Today monocultures have increased dramatically worldwide, mainly through the geographical expansion of land devoted to single crops and year-to-year production of the same crop species on the same land. Available data indicate that the amount of crop diversity per unit of arable land has decreased and that croplands have shown a tendency toward concentration. There are political and economic forces influencing the trend to devote large areas to monoculture, and in fact such systems are rewarded by economies of scale and contribute significantly to the ability of national agricultures to serve international markets. The technologies allowing the shift toward monoculture were mechanization, the improvement of crop varieties, and the development of agrochemicals to fertilize crops and control weeds and pests. Government commodity policies these past several decades encouraged the acceptance and utilization of these technologies. As a result, farms today are fewer, larger, more specialized and more capital-intensive. At the regional level, increases in monoculture farming meant that the whole agricultural support infrastructure (i.e. research, extension, suppliers, storage, transport, markets, etc.) has become more specialized.
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单选题Early settlers in this land found great difficulty in ______ to the harsh living conditions.A
adoptingB
fittingC
settlingD
adapting
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问答题Green Gene Technology For the past 10,000 years humans have influenced the plants they use at first unknowingly, later by design. Today’s crops have been created by a process of selection and classical breeding. More specific improvements in breeding will be possible in future. Science has cracked the genetic information code. Green gene technology is an effective tool in crop breeding, enabling us to develop new crops even more rapidly and specifically. We can make them more efficient, optimizing their contents and valuable substances to suit the wishes and requirements of customers and the processing industry. Their metabolism can be individually modified, making them produce starch, protein and fats with special properties. Through gene transfer plants can be made more resistant to viruses, bacteria, harmful fungi and insect pests. Genetically modified plants can be cultivated to possess improved stress behavior, with the result that they absorb water better in dry locations and can make more efficient use of soil nutrients. We can also optimize weed control. To do so, we make crops tolerant to environmentally sound and easily degradable herbicides. This is not as simple as it sounds. But we have been successful: Innovator has been on the Canadian market since 1995. This is the first oilseed rape variety to contain the glufosinate tolerance gene, facilitating the use of AgrEvo’s broad-spectrum herbicide liberty. We are committed to green gene technology, with which we aim to make crop breeding even more efficient and environmentally friendly. Before being brought on to the market these genetically modified plants are researched and tested for years until the questions posed regarding their safety have been answered. This is a great opportunity for us to realize our vision: the use of faster methods to breed varieties which will continue to provide us with sufficient food and raw materials in future. Our fossil reserves will soon be exhausted. Experts estimate that we only have enough oil for another 43 years and natural gas for less than 60. This means we must rethink and act accordingly, using new crop varieties to step up the move to replenishable sources of raw materials and energy. In other words, green gene technology is the key technology for sustainable agriculture.
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