For large producers, _______ they lost some pigs to the disease, prices are so high now that they are still earning much more than before.
A.in that B.in case C.even if D.as if
高三英语单项填空中等难度题
For large producers, _______ they lost some pigs to the disease, prices are so high now that they are still earning much more than before.
A.in that B.in case C.even if D.as if
高三英语单项填空中等难度题查看答案及解析
What good news! Such a successful gene ______ in pigs that it enables the pigs to produce human serum albumin, a protein made by the liver. Look! Here ________.
A. have they modified…they come.
B. did they modify…come they
C. they have modified…are coming they
D. they modify…they are coming
高三英语单项填空中等难度题查看答案及解析
Nobody would stand out admitting the fact，for some reason，________ they lost the game.
A．that B．which C．what D．why
高三英语单项填空中等难度题查看答案及解析
Can you give me some advice on how to _____ the time I have lost?
A. look up to B. make up for C. put up with D. break away from
高三英语单项填空中等难度题查看答案及解析
208. Last week, I was ill for some days and I’m determined to___________the lost time.
| A．make up | B．make up of | C．make of | D．make up for |
高三英语单项填空简单题查看答案及解析
The Nile River ____ flood large areas but now the water ____ produce electricity.
A. used to; is used to B. used to; used to
C. was used to; is used to D. was used to; used to
高三英语单项填空中等难度题查看答案及解析
As the world’s population grows, farmers will need to produce more and more food. And large farms are increasingly using precision farming to increase yields (产量), reduce waste, and reduce the economic and security risks that inevitably accompany agricultural uncertainty.
Traditional farming relies on managing entire fields—making decisions related to planting, harvesting, irrigating, and applying pesticides and fertilizer (农药和化肥)—based on regional conditions and historical data. Precision farming, by contrast, combines sensors, robots, GPS, mapping tools and data-analytics software to customize（量身定制）the care that plants receive without increasing labor. Robot-mounted sensors and camera-equipped drones (无人机) wirelessly send images and data on individual plants to a computer, which looks for signs of health and stress. Farmers receive the feedback in real time and then deliver water, pesticide or fertilizer in adjusted doses（剂量）to only the areas that need it. The technology can also help farmers decide when to plant and harvest crops.
As a result, precision farming can improve time management, reduce water and chemical use, and produce healthier crops and higher yields—all of which benefit farmers’ bottom lines and conserve resources while reducing chemical runoff.
Many small businesses are developing new software, sensors, and other tools for precision farming, as are large companies such as Monsanto, John Deere, Bayer, Dow and DuPont. The U.S. Department of Agriculture, NASA and the National Oceanic and Atmospheric Administration all support precision farming, and many colleges now offer course work on the topic.
In a related development, seed producers are applying technology to improve plant characteristics. By following individual plants over time and analyzing which ones flourish in different conditions, companies can relate the plants’ response to their environments with their genomics (基因组学). That information, in turn, allows the companies to produce seed varieties that will grow well in specific soil and weather conditions. This advanced technology may also help to improve crop nutrition.
Farmers do not universally welcome precision agriculture for various reasons, such as high equipment costs and lack of access to the Internet. The technology may bring great challenges to experienced farmers who are not good at computers. And large systems will also be beyond the reach of many small farming operations in developing nations. But less expensive, simpler systems could potentially be applied. For others, though, cost savings in the long run may reduce the financial concerns. And however reticent some farmers may be to adopt new technology, the next generation of farmers are likely to warm to the approach.
1.Precision farming differs from traditional farming partly because it ________.
A. guarantees high yields with more labor
B. relies on regional conditions and historical data
C. offers plenty of water, pesticides and fertilizer
D. provides real time information about target crops
2.About precision farming, we can learn that________.
A. the government holds a cautious attitude
B. it draws positive responses from businesses
C. seed producers have already made huge profits
D. large systems will soon be built in developing nations
3.The underlined word “reticent” in the last paragraph probably means ________.
A. disappointed B. confused
C. unwilling D. shocked
4.What is the best title for the passage?
A. Precision Farming Increases Crop Yields
B. More Challenges Faced by Modern Farmers
C. Development of Farming Systems in the U.S.
D. Traditional Farming is Gradually Disappearing
高三英语阅读理解困难题查看答案及解析
Nowadays, some people tend to drink and gamble for the sake of ________ they call the circles, which is definitely stupid.
A. why B. how C. where D. what
高三英语单项填空简单题查看答案及解析
Some lawyers have long called for changes to these laws which they think are ___ in the 21 st Century.
A．in place B．on the way C．by the way D．out of place
高三英语单项填空中等难度题查看答案及解析
______ some users of the smart watches for two years, they draw a conclusion that it is necessary to renew the software.
A.Following B.To follow C.Followed D.Having followed
高三英语单项填空中等难度题查看答案及解析