Some farmers have more pieces of land to look after than others.

use ______.

A．they disapprove of paying farmers for not cultivating the land

B．their new fuel crops are as harmful as the ones they have replaced

C．their policies do not recognise the long-term benefit of ending subsidies

D．they have not encouraged their farmers to follow environmentally friendly practices

use ______.

A．they disapprove of paying farmers for not cultivating the land.

B．their new fuel crops are as harmful as the ones they have replaced.

C．their policies do not recognise the long-term benefit of ending subsidies.

D．they have not encouraged their farmers to follow environmentally friendly practices.

听力原文： Farmers and their supporters protested Wednesday in hundreds of rural locations in Argentina on the two-week mark of the farmers' strike against an increase in export taxes for their products. Women in Cordoba, Argentina, bang pots in support of the farmers' strike on Wednesday. In some places, protesters blocked roads to the capital. On those roads, the farmers have stopped trucks transporting food and other farm-related products, Other vehicles were allowed to pass.The farmers' federations have said that the strike will continue for an undetermined period of time. The strike's impact already is visible on the nearly empty supermarket shelves in cities. Butchers and supermarkets were among the first hit.The noise of Tuesday's caeerolazos evoked memories of the protests in 2001 that forced then-president Fernando de la Rua from power.

The farmers' federations have said that the strike will last for

A．two weeks.

B．a month.

C．an unknown period.

D．three days.

Questions are based on the following passage.

New Stanford research reveals that farmers in Europe will see crop yields affected as global temperatures rise， but that adaptation can help slow the decline for some crops.

For corn， the anticipated loss is roughly 10 percent， the research shows.

Farmers of these crops have already seen yield growth slow down since 1980 as temperatures have risen， though other policy and economic factors have also played a role.

"The results clearly showed that modest amounts of climate change can have a big impact on yields of several crops in Europe，" said Stanford doctoral student Frances Moore， who conducted the research with David Lobell， an associate professor of environmental Earth system science.

Moore described the results as somewhat surprising because Europe is fairly cool. "So you might think it would benefit from moderate amounts of warming，"she said. "Our next step was to actually measure the potential of European farmers to adapt to these impacts."

"By adaptation， we mean a range of options based on existing technologies，such as switching varieties of a crop， installing irrigation or growing a different crop， one better suited to wanner temperatures，" said Lobell. "These things have been talked about for a long time， but the novelty （新奇） of this study was using past data to quantify （量化） the actual potential of adaptation to reduce climate change impacts. We find that in some cases adaptation could substantially reduce impacts， but in other cases the potential may be very limited with current technologies."

Moore pointed out that the biggest issues are often how quickly farmers in Europe will adapt to climate change （adaptation uncertainty） and how crop yields will respond to climate change （response uncertainty）.

"This paper has shown that crops in Europe are sensitive to wanning and that adaptation can be important in reducing that impact，" Moore said. "The next question is how quickly farmers will use the available options for adapting.

Europe has already seen a lot of warming， so we should expect to already see adaptation if farmers are quick to respond to climate signals，"

What does the new Stanford research show？ 查看材料

A.People can do nothing about global wanning.

B.The influence of global temperature rise is increasing.

C.People can do something to slow the decline for some crops.

D.All crops" yields will decline as global temperatures rise.

A.shops have closed down

B.people buy as much as they can

C.farmers can produce no more

D.people eat more vegetables

ion of the San Joaquin Valley in California-one of the most productive agricultural areas in the world. Recently, Peter was promoted to the position of agricultural loan clerk.

In his new position, he has many reports to read-reports from farmers who are applying for loans; status reports from farmers who have received loans; and reports from his employer, the federal government, on new loan programs.

After reading so many reports, Peter wonders,“Why are reports so different？"Some are long, some are short. Some are simple, some are complex. Some are easy to read, some are difficult to read. Some are coherent， some are. not. Some make recommendations, some do not. Why are reports so different？

1.The San Joaquin Valley in California is one of the most().

A.famous industrial areas

B.popular tourist attractions

C.productive agricultural areas

2. What does Peter do in his new position？ ()

A.He reads many reports from several aspects

B.He writes many reports for farmers and banks

C.He is in charge of investment and marketing

3. Why the farmers write reports to Peter？()

A.To make conclusions

B.To apply for loans

C.To do business with him

4. From reading reports, Peter finds that().

A.most of the reports are well written

B.farmers are good at writing reports

C.the reports show great difference

5.What do you think the author will talk later？()

A.The difficulty of the farmers

B.The position of Peter' s supervisor

C.The reasons causing difference of reports

听力原文： Experts say some farming activities are seriously damaging Earth's environment. Bad farming methods can damage soil, forests and water supplies. They also have caused some plants and animals to disappear.

Two groups now say that bad farming methods are threatening the ability of farmers to produce enough food to feed the world population in the future.

The groups used satellite images, maps and modern equipment to study the effect of agriculture on the environment. The study found that the destruction of soil is widespread. Important organic nutrients are being removed from farmland.

Agriculture uses seventy percent of the freshwater in the world each year. The study found that many farmers are wasting water supplies. In addition, chemicals designed to protect crops may pollute waterways.

The report also says as much as thirty percent of the world's forests have been cut down so the land could be used for agriculture. This has led to a severe loss of wildlife and their environments.

(30)

A．Soil.

B．Human population.

C．Forest.

D．Water.

听力原文： Scientists have observed that plants themselves produce many poisonous chemicals for defence against insects. But insects have developed ways of dealing with them and, in fact, have been eating plants for about 250 million years. Now insects are using these same mechanisms to deal with man-made poisons--insecticides. This is why resistance of insects to insecticides has developed so rapidly.

What should be done？ Scientists studying the problem suggest that farmers use less insecticides. At the moment, farmers regularly spray crops as a precaution against problems that are caused by large numbers of pests. They should, instead, spray only where pests have actually been seen. Secondly, farmers could use a combination of two or three insecticides at once. To survive, the insects would need to become resistant to two or more poisons at the same time.

The most surprising suggestion, perhaps, is that, at certain times of the year, farmers should actually try to attract new insects onto the crops they are trying to protect. The new insects will mate with those which survived from a certain kind of insecticide and will lessen the latter's resistance to it.

Scientists hope that these and other measures will postpone the day when farmers and scientists will have to stand by while new super-bugs which may be resistant to all our poisons invade our farms and eat our crops.

(33)

A．Plants can produce some poisonous chemical for defence against insects.

B．Insects have been eating plants for many million years.

C．Insects have developed ways of dealing with poisonous chemicals produced by plants themselves.

D．Insects have already developed some resistance to man-made poisons.

听力原文： Experts say some fanning activities are seriously damaging Earth's environment. Bad farming methods can damage soil, forests and water supplies. They also have caused some plants and animals to disappear.

Two groups now say that bad farming methods are threatening the ability of farmers to produce enough food to feed the world population in the future.

The groups used satellite images, maps and modern equipment to study the effect of agriculture on the environment.

The study found that the destruction of soil is widespread, Important organic nutrients are being removed from farmland.

Agriculture uses 70 percent of the freshwater in the world each year. The study found that many farmers are wasting water supplies. In addition, chemicals designed to protect crops may pollute waterways.

The report also says as much as 30 percent of the world's forests have been cut down so the land could be used for agriculture. This has led to a severe loss of wildlife and their environments.

(30)

A．Soil.

B．Human population.

C．Forest.

D．Water.