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[单选题]
__________, the crops would be saved.
A.It should rain
B.It rains
C.Should it rain
D.It will rain
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.It should rain
B.It rains
C.Should it rain
D.It will rain
如果结果不匹配，请 联系老师 获取答案
更多“__________, the crops would be…”相关的问题
A.Scale(缩放)
B. Rotate(旋转)
C. Perspective(透视)
D. Crop(裁切)
Which of the following is an example of objectivewriting（）。
A.English should not be taught in class, because it isirrelevant to students' future jobs.
B.According to a recent survey from the Ministry ofEducation, there are more women than men enrolled incolleges.
C.I refuse to believe in the existence of crop circles.
D.Itis not a poem unless it is rhymed.
To which of the following items does IAS 41 Agriculture apply？
(i) A change in the fair value of a herd of farm animals relating to the unit price of the animals
(ii) Logs held in a wood yard
(iii) Farm land which is used for growing vegetables
(iv) The cost of developing a new type of crop seed which is resistant to tropical diseases
A.All four
B.(i) only
C.(i) and (ii) only
D.(ii) and (iii) only
Prehistoric (史前的）had little choice in what he ate. He ate what he could find: roots, eggs, fruits and the meat of smallanimals. Early man had no way to control his food supply. If there was no rain, or the weather was too hot or too cold,plants would not grow, and he would have little or no food. When he ate all the food in one place, he had to move to anotherregion for food.
Man’s life changed when he learned to grow plants and to raise animals. He also learned to use fire to prepare his food. Later, he learned to make tools and weapons, and to make containers to store his food. Man could now live in one place andproduce his own food. So civilization (文明）began. Great civilizations slowly developed in regions where food wasplentiful — along the Nile River in Egypt, and by the Yellow River in China.
The kinds of plants which are raised by man are different in each geographical region. In the colder regions very fewplants can be grown; in the warmer parts of the world great varieties of plants are found. In Asia, rice has become the mostimportant crop. In North America, the most important grains are wheat and com. In Europe and North Africa, wheat is themain crop. In the tropical (热带的）regions of the world，many kinds of fruit grow naturally or arc planted by man.
With the development of methods of keeping food fresh, it became possible to send most food products from one partof the world to another. Today foods are kept fresh in many ways and sent all over the world. Man no longer depends on thefood he grows in his own area only.
As man has learned more about plants and animals, the production of food has become a more technical process. In thefuture, it seems possible that vast quantities of food may come from the ocean. Food may also be produced in new ways.
According to the first paragraph.man has to ensure________
A.the amount of food he needs
B.the quality of the food he needs
C.the quality of his lifeon theearth
D.the number of people livingon the earth
If the weather was extremely bad, early man would？A.raise new crops
B.suffer from hunger
C.raise small animals
D.suffer from diseases
From Paragraph 3 we know that civilizations developed in areas？A.where the weather was good
B.where there was enough rain
C.where there was a large amountof food
D.where there were a great numberof animals
Which of the following is true according to Paragraph 4？A.There are few plants in colder regions.
B.Corn is the most important crop in Asia.
C.There are few plants in hotter regions.
D.Rice is the main crop in Europe.
As man’s knowledge about plants and animals increases,.A.fewer plants will be needed
B.fewer animals will he available
C.more and more land will be
D.more and more food will he available
请帮忙给出每个问题的正确答案和分析，谢谢！
选词填空：The method for making beer has changed over time. Hops (啤酒花)，for example, which many a modern beerits bitter flavor, are a 26 recent additions to the beverage. Thiswas mentioned in reference to brewing in the ninth century. Now, researchershave found a 27 ingredient in residue (残留物) from 5000-year-old beer brewingequipment. While excavating two pits at a site in thecentral plains of China, scientists discovered pottery fragments from pots,funnels, amphorae, and stoves (stove fragment pictured). The different shapesof the containers 28 theywere used to brew, filter, and store beer—they may be ancient “beer-making tools,” and the earliest 29 evidence of beer brewing in China, the researchers report online today in theProceedings of the National Academy of Sciences.To30 thathypothesis, the team examined the yellowish, dried 31 insidethe vessels. The majority of the grains—about 80%—were from cereal cropslike barley (大麦), andabout 10% were bits of roots, 32 lily,which would have sweetened the brew, the scientists say. Barley was anunexpected find: The crop was domesticated in western Eurasia and didn’t becomea 33 food incentral China until about 2000 years ago, according to the researchers. basedon that timing, they suggest barley may have 34 in theregion not as food, but as 35 material forbeerbrewing.
A) arrived
B) consuming
C) direct
D) exclusively
E) including
F) inform
G) raw
H) reached
I) relatively
J) remains
K) resources
L) staple
M) suggest
N) surprising
O) test
Questions 1 to 5 are based on the following passage.
Some of the world's most sign significant problems hit headlines. One example comes from agriculture. Food riots and hunger make news. But the trend lying behind these matters is rarely talked about. This is the decline in the growth in yields of some of the world's major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring.
The authors take a vast number of data points for the four most important crops: rice, wheat, corn and soyabeans(大豆). They find that on between 24% and 39% of all harvested areas, the improvement in yields that took place before the 1980s slowed down in the 1990s and 2000s.
There are two worrying features of the slowdown. One is that it has been particularly sharp in the world's most populous(人口多的)countries, India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency cannot be taken for granted if yields continue to slow down or reverse.
Second,yield growth has been lower in wheat and rice than in corn and soyabeans. This is problematic because wheat and rice are more important as foods, accounting for around half of all calories consumed. Corn and soyabeans are more important as feed grains. The authors note that "we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world."
The report qualifies the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organisation has argued.
Instead, it says, thanks to slowing population growth, land currently ploughed up for crops might be able to revert(回返)to forest or wilderness. This could happen. The trouble is that the forecast assumes continued improvements in yields, which may not actually happen.
1.What does the author try to draw attention to？
A.Food riots and hunger in the world.
B.The decline of the grain yield growth.
C.News headlines in the leading media.
D.The food supply in populous countries.
2.Why does the author mention India and China in particular？
A.Their self-sufficiency is vital to the stability of world food markets.
B.Their food yields have begun to decrease sharply in recent years.
C.Their big populations are causing worldwide concerns.
D.Their food self-sufficiency has been taken for granted.
3.What does the new study by the two universities say about recent crop improvement efforts？
A.They fail to produce the same remarkable results as before the 1980s.
B.They contribute a lot to the improvement of human food production.
C.They play a major role in guaranteeing the food security of the world.
D.they focus more on the increase of animal feed than human food grains.
4.What does the Food and Agriculture Organisation say about world food production in the coming decades？
A.The growing population will greatly increase the pressure on world food supplies.
B.The optimistic prediction about food production should be viewed with caution.
C.The slowdown of the growth in yields of major food crops will be reversed.
D.The world will be able to feed its population without increasing farmland.
5.How does the author view the argument of the Food and Agriculture Organisation？
A.It is built on the findings of a new study.
B.It is based on a doubtful assumption.
C.It is backed by strong evidence.
D.It is open to further discussion.
(1)Which statement is correct according to paragraph one？
A、Broccoli was first bred by Mendel
B、Broccoli wasn’t considered edible until 500 years ago
C、Mendel's work was considered most important in the history of genetics
D、Mendel’s study found its major application some 100 years ago
(2)What was cited as a result of the green revolution？
A、Sharp rise in worldwide wheat production
B、Extensive use of organic fertilizer
C、Large-scale adoption of genetic modification
D、Commercial success of genetically modified seeds.
(3)Which statement is true of GenBank according to the passage？
A、The number of gene sequences has doubled since its foundation
B、The commercial breeders are its main sponsors
C、It is a genetic sequence database
D、It was founded in 2004
(4)It can be learned from the passage that the significance of genetic modification is ______.
A、questioned by some critics
B、poorly conveyed to the public
C、appreciated by all breeders
D、fully understood only by scientists
(5)The word “novel” in paragraph three is closest in meaning to ______.
A、artificial
B、various
C、hybrid
D、new
In its latest economic health check, the Washington-based Bank said tougher economic policies and the jump in commodity prices would slow the pace of world growth this year before a pick-up in activity in 2012.
The Bank predicted that global growth was on course to edge down from 3.8 percent in 2010 to 3.2 percent this year, then accelerate to 3.6 percent in 2012. It forecast that the pace of activity in high-income countries would slow from 2.7 percent in 2011 to 2.2 percent in 2012. Developing countries, which were responsible for almost half global growth in 2010, would expand by 6.3 percent this year, down from 7.3 percent in 2010.
The Bank warned that its forecasts could be over-optimistic should oil prices continue to rise. Brent crude (布伦特原油) was t
1If oil prices keep rising, the forecasted global economic growth rate could be __________.
A、increased to 3.6 percent
B、increased to 6.3 percent
C、reduced to 2.2 percent
D、slowed by 0.5 percent
2What has been causing oil prices to continue to increase？
A、Market uncertainty or unstable oil supply.
B、The global recession of 2008 and 2009.
C、Over-optimistic forecast for economic growth.
D、Agreement reached by the OPEC oil cartel.
3What problem(s) do developing countries need to strive to address？
A、The slow economic growth rate.
B、Poverty brought by high food prices.
C、Structural imbalances and inflation pressures.
D、Tensions coming from high-income countries.
4According to the World Bank, high food prices had been a result of ____________.
A、high oil prices and decreased oil production
B、high oil prices and poor crop harvest
C、tougher economic policies
D、rise in other commodity prices
5How does the World Bank sound in making the predictions about economic growth？
A、Worried.
B、Objective.
C、Indifferent.
D、Sympathetic
