XB 1 Unit 5 语法填空

Yuan Longping, 1.________________(know) as the “father of hybridrice”, is one of China’s most famous scientists. Yet, he considers himself a farmer because he 2_______________(continual) works the land in his research. Indeed, his slim 3_______________strong body is just like that of millions of Chinese farmers, to _____4_______he has devoted his life.
Yuan Longping was born in 1930 in Beijing. His parents wanted him to pursue a career in science or medicine. However, 5______________concerned him most was that farmers often had poor harvests and sometimes even had a serious 6____________(short)  of food to eat. To tackle this crisis, he chose to study agriculture and received an education at Southwest Agricultural College in Chongqing.
After 7________________(graduate)in 1953, he worked 8___________ a researcher. Yuan Longping realised that larger fields were not the solution.9_________________, farmers needed to boost yields in the fields they had. How this, could be done was a challenging question at the time. Yuan 10_______________(convince) that the answer could be found in the creation of hybrid rice. A hybrid is a cross between two or more varieties of a species. One characteristic of hybrids is11______________ they usually attain a higher yield than conventional crops. However, 12___________it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate. The common 13_______________(assume)then was that it could not be done. Through intense effort, Yuan overcame enormous technical difficulties to develop the first hybrid rice that could be used for farming in 1974. This hybrid enabled farmers to expand their output greatly.
Today, it ______14__________(estimate) that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yuan’s hybrid strains, and his strains have allowed China’s farmers to produce around 200 million tons of rice per year. Yuan’s innovation has helped feed not just China, but many other countries that depend on rice as well, such as India and Vietnam. Because of his invaluable  15________________(contribute) , Yuan Longping has received numerous awards both in China and abroad.
Given that Yuan’s hybrids have made him quite wealthy, one might think he would retire to a life of leisure. However, this is far from the case. Deep down, Yuan is still very much a farmer at heart. As a man of the soil, he cares little for celebrity or money. Instead, he makes large donations to support agricultural research.
16______________impresses people most about Yuan Longping is his ongoing ability to fulfill his dreams. Long ago, he envisioned rice plants as tall as sorghum, with each ear of rice as big as a broom, and each grain of rice as huge as a peanut. He succeeded in producing a kind of rice that could feed more people at home and abroad. His latest vision for “seawater rice” has also become a reality, and potentially opened up nearly one million square kilometres of salty land in China for rice production. 17_________________his advanced years, Yuan Longping is still young at heart and full of vision, and everyone is waiting to see what he will dream up next.
1.________________2__________________3_________________
4__________________5______________6___________
7_____________8___________9______________10-____________
11_______________12________________________13______________
14_____________15___________16______________17_________
答案
1.known
2.continually
3.but
4.whom
5.what
6.shortage
7.graduating
8.as
9.Instead
10.was convinced
11.that
12.whether
13.assumption
14.is estimated
15.contributions
16.What
17.Despite

【课文语法填空】新人教版选择性必修一 Unit 5
A Pioneer for All People
Yuan Longping,   1   (know) as the “father of hybrid rice”, is one of China’s most famous scientists. Yet, he considers himself a farmer because he   2   (continue) works the land in his research. Indeed, his slim   3   strong body is just like that of millions of Chinese farmers, whom he has devoted his life.
Yuan Longping was born in 1930 in Beijing. His parents wanted him to pursue a career in science or medicine. However,   4   concerned him most was that farmers often had poor harvests and sometimes even had a serious   5   (short) of food to eat.   6   (tackle) this crisis, he chose to study agriculture and received an education at Southwest Agricultural College in Chongqing.
After graduating in 1953, he worked as a   7   (research). Yuan Longping realised that larger fields were not the solution. Instead, farmers needed   8   (boost) yields in the fields they had. How this could be done was a   9   (challenge) question at the time. Yuan was   10   (convince)
that the answer could be found in the creation of hybrid rice. A hybrid is a cross between two or more varieties of a species. One characteristic of hybrids is that they usually attain a higher yield than   11   (convention) crops. However,   12   it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate. The common   13   (assume) then was that it could not be done. Through intense effort, Yuan overcame enormous technical difficulties to develop   14   first hybrid rice that could be used for farming in 1974. This hybrid enabled farmers to expand their output greatly.
Today, it is estimated that about 60 percent of domestic rice consumption in China is   15  
(comprise) of crops generated from Yuan’s hybrid strains, and his strains have allowed China’s farmers to produce around 200 million tons of rice per year. Yuan’s innovation has helped feed not just China, but many other countries that depend   16   rice as well, such as India and Vietnam. Because of his invaluable contributions, Yuan Longping has received numerous awards both in China and abroad.
Given that Yuan’s hybrids have made him quite   17   (wealth), one might think he would retire to a life of leisure. However, this is far from the case. Deep down, Yuan is still very much a farmer at heart. As a man of the soil, he cares little for celebrity or money. Instead, he makes large donations to support agricultural research.
What impresses people most about Yuan Longping is his ongoing ability to fulfill his dreams. Long ago, he envisioned rice plants as tall as sorghum, with each ear of rice as big as a broom, and each grain of rice as huge   18   a peanut. He succeeded in producing a kind of rice that could feed more people at home and abroad. His latest vision for “sea water rice” has also become a
19   (real), and potentially opened up nearly one million square kilometres of   20   (salt) land in China for rice production. Despite his advanced years, Yuan Longping is still young at heart and full of vision, and everyone is waiting to see what he will dream up next.
【参考答案】
1. known    2. continually    3. but    4. what    5. shortage
6. To tackle    7. researcher    8. to boost    9. challenging    10. convinced
11. conventional    12. whether    13. assumption    14. the    15. comprised
16. on    17. wealthy    18. as    19. reality    20. salty
Chemical Versus Organic Farming
Chemical pesticides and artificial fertilisers have been in widespread use in farming since the middle of the 20th century. When they were   1   (one) introduced, many farmers welcomed them as a great way to fight crop disease and increase production. Over time, however, what some scientists have found is that their long-term use can sometimes harm both the land   2  
people’s health.
For example, pesticides can damage the land by killing not only   3   (harm) bacteria and insects, but also helpful ones. In addition, these chemicals can stay in the soil and underground water sources for a long time. This affects the crops grown on the land and,   4   turn, the animals and humans who digest them. Many people worry that these chemicals may make   5  
ill and even cause cancer. In fact, some pesticides like DDT have been prohibited in most countries because of the damage they cause   6   people and the environment. As for chemical fertilisers, crops grown with them usually grow too fast   7   be rich in nutrition. They may look beautiful on the outside, but inside there is usually more water   8   essential minerals, and they often have less flavour as well.
As   9   alternative, some farmers have switched to organic farming, and many customers have turned to organic food when they shop at the local grocery. Organic farming is simply farming without using any chemicals. Organic farmers focus on   10   (keep) their soil rich and free of disease through natural   11   (mean). For example, many organic farmers use natural waste from animals as fertiliser. This makes the soil in their fields richer in minerals. It also keeps the air, soil, water, and crops free of chemicals.
Organic farmers also use many other methods to produce rich soil. They often change the kind of crop grown in each field every year. For   12   (instant), they may grow corn or wheat in a field one year, and then grow beans there the next.   13   different crops are grown is because they put important minerals back into the ground,   14   (make) it ready for the next batch of crops. Organic farmers also plant diverse crops that used different   15   (depth) of soil to help keep it rich. For example, peanuts grow on the ground’s surface, but many other vegetables put down deep roots. The goal of using different organic farming methods is   16   (grow) good food while avoiding damage to the environment or to people’s health.
Some people would prefer to stop the use of man-made chemicals in agriculture   17   (entire). What keeps them from   18   (do) so is the fact that chemical farming serves the high demand for food around the world. Organic farming is nowhere near able to meet that need. Therefore, there is still a long way to find a suitable solution that puts sufficient food   19   the dinner table while keeping people and the environment as healthy as   20   (possibility).
【参考答案】
1. first    2. and    3. harmful    4. in    5. them
6. to    7. to    8. than    9. an    10. keeping
11. means    12. instance    13. Why    14. making    15. depths
16. to grow    17. entirely    18. doing    19. on    20. possible