人教版高中英语：必修4 Unit 2 Working the land 单元练习（含答案）

4.2 Working the land
Ⅰ. 阅读理解
A new study published this week in the journal Nature Communications has concluded that a 100 percent change to organic food production in England and Wales would actually lead to a great increase in greenhouse gas emissions. In turn, this would contribute to further climate change.
Although organic farming directly pours out fewer emissions than conventional farming—around 20 percent lower for crops and 4 percent for farm animals—it produces notably less food. As to this study’s findings, total organic agriculture in England and Wales would produce 40 percent less food. With less food in the market, the countries would need to increase food imports, which would produce more global greenhouse gas emissions.
Organic farming also increases the amount of absorbing carbon, a process where carbon dioxide(CO2) is “absorbed” out of the atmosphere and captured by plants and stored in the soil. However, even a total change to organic farming would only be equal to a tiny part of the higher emissions from overseas land use.
“We predict a drop in total food production of 40 percent under a fully organic farming process, compared to conventional farming, if we keep to the same national diet，” Dr Adrian Williams, lead author and reader in Agri－Environmental Systems at Cranfield University, said in a statement. “This results from lower crop quantity, because output is limited by a lower supply of nitrogen, which is mainly from other crops or solid waste from cattle on the grassland.”
Nevertheless, it is important to note that organic farming still holds some useful benefits for the environment, such as reducing exposure to chemicals and improving the varieties of creatures. In conclusion, the study suggests that organic farming will continue to play a key role in resolving the world’s environmental problems. However, it’s just one part of a much wider solution.
1. What will total organic agriculture bring to England
A. More main food. B. More species crop.
C. More food imports. D. More fresh oxygen.
2. How does organic farming increase the amount of absorbing carbon
A. By taking in CO2. B. By changing CO2.
C. By giving off CO2. D. By producing CO2.
3. What is the last paragraph mainly about
A. The ways to reduce organic farming.
B. The results caused by organic farming.
C. The solution to the environment problems.
D. The advantages of organic farming.
4. Which of the following is the best title of the text
A. Organic Farming, Green Food
B. Organic Farming, Our Hope in Future
C. Organic Farming, a Mistake We Made
D. Organic Farming, a Double－edged Sword
Ⅱ. 完形填空
It was my twenty－eighth birthday, and I was seriously upset. I was a newly divorced mom, raising two small children on my own. Feeling __1__ myself had become comfortable for me.
The evening before my __2__， my six－year－old son Nick said, “Tomorrow’s your birthday, Mommy! I can’t __3__！” Unable to return his enthusiasm, I kissed his cheeks and __4__ he could forget it the next day.
The next morning, I __5__ noises in our living room and then I heard Nick __6__ his baby sister Maya, telling her to “make Mommy smile today.” It suddenly hit me I’d been so __7__ in my sadness that I hadn’t realized how it was affecting my children. Sensing my __8__， my little boy was doing his best to __9__ something about it.
I marched into the living room to hug my children—and was __10__ in my tracks. There sat Nick on the floor, Maya on her blanket next to him and in front of them was a pile of __11__．
I looked wide－eyed and open－mouthed at the presents, then back to my son. “Happy Birthday！” he cried. “I __12__ you, Mommy, didn’t I？”
I knelt(跪) down next to him and asked how he’d __13__ to get me the presents. He reminded me of our __14__ to the Dollar Tree store, and I __15__ remembered him telling me he was going to spend the allowance he’d been saving for ages. I had almost __16__ him for spending everything he had so carefully saved. I would never have imagined that he was __17__ gifts for me.
__18__ the presents, I suddenly saw the beauty in my life. The sadness __19__ from my heart. I hugged my son and daughter and told them how __20__ I was to have them in my life.
1. A. satisfied with　　　　 B. sorry for
C. afraid of D. amazed by
2. A. graduation B. anniversary
C. retirement D. birthday
3. A. lie B. leave
C. wait D. play
4. A. hoped B. proved
C. promised D. advised
5. A. tested B. made
C. heard D. remembered
6. A. singing to B. talking to
C. arguing with D. speaking about
7. A. similar B. skilled
C. lost D. scared
8. A. unhappiness B. importance
C. impatience D. confusion
9. A. explain B. read
C. find D. do
10. A. blamed B. stopped
C. refused D. chosen
11. A. clothes B. sweets
C. toys D. presents
12. A. surprised B. trusted
C. missed D. frightened
13. A. expected B. managed　
C. agreed D. pretended
14. A. dream B. plan　　
C. trip D. task
15. A. immediately B. frequently
C. recently D. continuously
16. A. forgiven B. thanked
C. supported D. scolded
17. A. preparing B. designing
C. opening D. ordering
18. A. Depending on B. Running into
C. Looking at D. Paying for
19. A. expanded B. passed
C. appeared D. lifted
20. A. busy B. lucky
C. wrong D. greedy
Ⅲ. 语法填空
The Song Dynasty was an exciting period in Chinese history. At the height of __1__(it) power, the country’s population doubled. A fast growing economy and strong support __2__ Chinese rulers helped the development of technology and the expansion of knowledge. During this period, a huge number of technological innovations emerged. Many of them had significant practical __3__ (apply)．
One particular invention from this period made a mark on the world: movable type(活字印刷术) — that is, individual blocks that could print a single letter and then __4__ (use) again. This technology finally ended up in Europe several centuries later. The Chinese language uses a huge number of characters, __5__ most European languages use individual letters that combine into words. Printing texts made up of individual letters __6__(require) fewer blocks. This invention produced an enormous change in __7__(write) communication in Europe and made it easier for a __8__ (grow) number of people to learn to read.
The Chinese were also the first to invent the compass, __9__ changed how sailors navigated the seas. Together with star charts — another Chinese invention — and maps, the compass made sea travel much __10__ (safe)．
1. ________　2. ________　3. ________　4. ________
5. ________　6. ________　7. ________　8. ________
9. ________　10. ________
Ⅳ. 短文改错
Organic farming could help fight world hungry. That’s how researchers reported at a recent United Nations conference. How is organic farming different with conventional farming Conventional farming uses chemicals to grow crops and kill insects, thus to giving a higher crop yield. Therefore, organic farmers don’t use chemicals to make plants grow faster, which produces more pollution and boosts the health of the environment. This process is considered earth－friendly method of farming. Experts predicted at the conference that the amount of food producing in this way would not fall. More important, a switch to organic farming would mean the hungry could feed them at lower costs.
4.2 Working the land
Ⅰ. 阅读理解
A new study published this week in the journal Nature Communications has concluded that a 100 percent change to organic food production in England and Wales would actually lead to a great increase in greenhouse gas emissions. In turn, this would contribute to further climate change.
Although organic farming directly pours out fewer emissions than conventional farming—around 20 percent lower for crops and 4 percent for farm animals—it produces notably less food. As to this study’s findings, total organic agriculture in England and Wales would produce 40 percent less food. With less food in the market, the countries would need to increase food imports, which would produce more global greenhouse gas emissions.
Organic farming also increases the amount of absorbing carbon, a process where carbon dioxide(CO2) is “absorbed” out of the atmosphere and captured by plants and stored in the soil. However, even a total change to organic farming would only be equal to a tiny part of the higher emissions from overseas land use.
“We predict a drop in total food production of 40 percent under a fully organic farming process, compared to conventional farming, if we keep to the same national diet，” Dr Adrian Williams, lead author and reader in Agri－Environmental Systems at Cranfield University, said in a statement. “This results from lower crop quantity, because output is limited by a lower supply of nitrogen, which is mainly from other crops or solid waste from cattle on the grassland.”
Nevertheless, it is important to note that organic farming still holds some useful benefits for the environment, such as reducing exposure to chemicals and improving the varieties of creatures. In conclusion, the study suggests that organic farming will continue to play a key role in resolving the world’s environmental problems. However, it’s just one part of a much wider solution.
1. What will total organic agriculture bring to England
A. More main food. B. More species crop.
C. More food imports. D. More fresh oxygen.
2. How does organic farming increase the amount of absorbing carbon
A. By taking in CO2. B. By changing CO2.
C. By giving off CO2. D. By producing CO2.
3. What is the last paragraph mainly about
A. The ways to reduce organic farming.
B. The results caused by organic farming.
C. The solution to the environment problems.
D. The advantages of organic farming.
4. Which of the following is the best title of the text
A. Organic Farming, Green Food
B. Organic Farming, Our Hope in Future
C. Organic Farming, a Mistake We Made
D. Organic Farming, a Double－edged Sword
1. 答案　C 2. 答案　A 3. 答案　D 4. 答案　D
Ⅱ. 完形填空
It was my twenty－eighth birthday, and I was seriously upset. I was a newly divorced mom, raising two small children on my own. Feeling __1__ myself had become comfortable for me.
The evening before my __2__， my six－year－old son Nick said, “Tomorrow’s your birthday, Mommy! I can’t __3__！” Unable to return his enthusiasm, I kissed his cheeks and __4__ he could forget it the next day.
The next morning, I __5__ noises in our living room and then I heard Nick __6__ his baby sister Maya, telling her to “make Mommy smile today.” It suddenly hit me I’d been so __7__ in my sadness that I hadn’t realized how it was affecting my children. Sensing my __8__， my little boy was doing his best to __9__ something about it.
I marched into the living room to hug my children—and was __10__ in my tracks. There sat Nick on the floor, Maya on her blanket next to him and in front of them was a pile of __11__．
I looked wide－eyed and open－mouthed at the presents, then back to my son. “Happy Birthday！” he cried. “I __12__ you, Mommy, didn’t I？”
I knelt(跪) down next to him and asked how he’d __13__ to get me the presents. He reminded me of our __14__ to the Dollar Tree store, and I __15__ remembered him telling me he was going to spend the allowance he’d been saving for ages. I had almost __16__ him for spending everything he had so carefully saved. I would never have imagined that he was __17__ gifts for me.
__18__ the presents, I suddenly saw the beauty in my life. The sadness __19__ from my heart. I hugged my son and daughter and told them how __20__ I was to have them in my life.
1. A. satisfied with　　　　 B. sorry for
C. afraid of D. amazed by
2. A. graduation B. anniversary
C. retirement D. birthday
3. A. lie B. leave
C. wait D. play
4. A. hoped B. proved
C. promised D. advised
5. A. tested B. made
C. heard D. remembered
6. A. singing to B. talking to
C. arguing with D. speaking about
7. A. similar B. skilled
C. lost D. scared
8. A. unhappiness B. importance
C. impatience D. confusion
9. A. explain B. read
C. find D. do
10. A. blamed B. stopped
C. refused D. chosen
11. A. clothes B. sweets
C. toys D. presents
12. A. surprised B. trusted
C. missed D. frightened
13. A. expected B. managed　
C. agreed D. pretended
14. A. dream B. plan　　
C. trip D. task
15. A. immediately B. frequently
C. recently D. continuously
16. A. forgiven B. thanked
C. supported D. scolded
17. A. preparing B. designing
C. opening D. ordering
18. A. Depending on B. Running into
C. Looking at D. Paying for
19. A. expanded B. passed
C. appeared D. lifted
20. A. busy B. lucky
C. wrong D. greedy
1. 答案　B 2. 答案　D 3. 答案　C 4. 答案　A
5. 答案　C 6. 答案　B 7. 答案　C 8. 答案　A
9. 答案　D 10. 答案　B 11. 答案　D 12. 答案　A
13. 答案　B 14. 答案　C 15. 答案　A 16. 答案　D
17. 答案　A 18. 答案　C 19. 答案　B 20. 答案　B
Ⅲ. 语法填空
The Song Dynasty was an exciting period in Chinese history. At the height of __1__(it) power, the country’s population doubled. A fast growing economy and strong support __2__ Chinese rulers helped the development of technology and the expansion of knowledge. During this period, a huge number of technological innovations emerged. Many of them had significant practical __3__ (apply)．
One particular invention from this period made a mark on the world: movable type(活字印刷术) — that is, individual blocks that could print a single letter and then __4__ (use) again. This technology finally ended up in Europe several centuries later. The Chinese language uses a huge number of characters, __5__ most European languages use individual letters that combine into words. Printing texts made up of individual letters __6__(require) fewer blocks. This invention produced an enormous change in __7__(write) communication in Europe and made it easier for a __8__ (grow) number of people to learn to read.
The Chinese were also the first to invent the compass, __9__ changed how sailors navigated the seas. Together with star charts — another Chinese invention — and maps, the compass made sea travel much __10__ (safe)．
1. ________　2. ________　3. ________　4. ________
5. ________　6. ________　7. ________　8. ________
9. ________　10. ________
1. 答案　its 2. 答案　from 3. 答案　applications
4. 答案　be used 5. 答案　while/but 6. 答案　requires
7. 答案　written 8. 答案　growing 9. 答案　which
10. 答案　safer
Ⅳ. 短文改错
Organic farming could help fight world hungry. That’s how researchers reported at a recent United Nations conference. How is organic farming different with conventional farming Conventional farming uses chemicals to grow crops and kill insects, thus to giving a higher crop yield. Therefore, organic farmers don’t use chemicals to make plants grow faster, which produces more pollution and boosts the health of the environment. This process is considered earth－friendly method of farming. Experts predicted at the conference that the amount of food producing in this way would not fall. More important, a switch to organic farming would mean the hungry could feed them at lower costs.
答案
Organic farming could help fight world hungry. That’s
hunger
how researchers reported at a recent United Nations conference. How is
what
organic farming different with conventional farming Conventional
from
farming uses chemicals to grow crops and kill insects, thus to giving a higher crop yield. Therefore, organic farmers don’t use chemicals to make
However
plants grow faster, which produces more pollution and boosts the health of
less
the environment. This process is considered ∧earth－friendly method of
an
farming. Experts predicted at the conference that the amount of food producing in this way would not fall. More important, a switch
produced importantly
to organic farming would mean the hungry could feed them at lower costs.
themselves