Вариант №2
ЗАДАНИЕ № 1 (- выберите один вариант ответа)
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The feeder house conveyor chain delivers……… material from the front end of the combine to the threshing area.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
crop |
b) |
raw |
| c) |
writing |
d) |
engine |
ЗАДАНИЕ № 2 (- выберите один вариант ответа)
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The tractor is provided with an economical diesel……… .
ВАРИАНТЫ ОТВЕТОВ:
| a) |
hanger |
b) |
wheel |
| c) |
link |
d) |
engine |
ЗАДАНИЕ № 3 (- выберите один вариант ответа)
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The share of a mold board plow provides the ……… edge.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
discharge |
b) |
scalloped |
| c) |
cutting |
d) |
soft |
ЗАДАНИЕ № 4 (- выберите один вариант ответа)
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The landside helps to counteract the … pressure on the moldboard.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
side |
b) |
suction |
| c) |
hydraulic |
d) |
head |
ЗАДАНИЕ № 5 (- выберите один вариант ответа)
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Incorporation of chemical fertilizes into the soil is another function of ……… .
ВАРИАНТЫ ОТВЕТОВ:
| a) |
cultivate |
b) |
cultivation |
| c) |
cultivated |
d) |
cultivates |
ЗАДАНИЕ № 6 (- выберите один вариант ответа)
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If you give me your dictionary, I ……… Jack.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
help |
b) |
helped |
| c) |
have helped |
d) |
will help |
ЗАДАНИЕ № 7 (- выберите один вариант ответа)
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I should be glad if I ……… her.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
meet |
| b) |
met |
| c) |
should meet |
| d) |
should have met |
ЗАДАНИЕ № 8 (- выберите один вариант ответа)
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She hopes ……… for the lesson.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
to be not late |
| b) |
to not late |
| c) |
not to be late |
| d) |
not to being late |
ЗАДАНИЕ № 9 (- выберите один вариант ответа)
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Believe me! This book is worth ……… .
ВАРИАНТЫ ОТВЕТОВ:
| a) |
buing |
b) |
being bought |
| c) |
buy |
d) |
having been bought |
ЗАДАНИЕ № 10 (- выберите один вариант ответа)
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A person ……… good news is always welcome.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
to bring |
| b) |
bring |
| c) |
brought |
| d) |
bringing |
ЗАДАНИЕ № 11 (- выберите один вариант ответа)
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We stopped and tried to open that ……… door.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
lock |
b) |
to lock |
| c) |
locked |
d) |
locking |
ЗАДАНИЕ № 12 (- выберите один вариант ответа)
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I heard the manager ……… the customer about their product.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
to tell |
b) |
being told |
| c) |
tells |
d) |
telling |
ЗАДАНИЕ № 13 (- выберите один вариант ответа)
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These engineers ……… to know German very well.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
is said |
b) |
was said |
| c) |
said |
d) |
are said |
ЗАДАНИЕ № 14 (- выберите один вариант ответа)
Заполните пропуск
……… the patient, the doctor prescribed him a new medicine.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
To examine |
b) |
Examined |
| c) |
Having examined |
d) |
Examine |
ЗАДАНИЕ № 15 (- выберите один вариант ответа)
Выберите реплику, наиболее соответствующую ситуации общения
Passenger1: “Excuse me, it’s a bit stuffy in here. ………”
Passenger2: “No, no. I don’t mind at all. I feel like some fresh air too. ”
ВАРИАНТЫ ОТВЕТОВ:
| a) |
I beg your pardon? |
b) |
Do you mind if I open the window? |
| c) |
Can I help you? |
d) |
Could you show me some scarves? |
ЗАДАНИЕ № 16 (- выберите один вариант ответа)
Выберите реплику, наиболее соответствующую ситуации общения
Boss: “Good afternoon, Nick. Late again?”
Employee: “Oh, yes. I’m ever so sorry. ………”
ВАРИАНТЫ ОТВЕТОВ:
| a) |
May I have the day off next Wednesday? |
b) |
There you are. |
| c) |
It won’t happen again. |
d) |
I didn’t see a sign. |
ЗАДАНИЕ № 17 (- выберите один вариант ответа)
Выберите реплику, наиболее соответствующую ситуации общения
Teacher: “Is it necessary to use scientific knowledge and technological experience in the work?”
Student: “………”
ВАРИАНТЫ ОТВЕТОВ:
| a) |
It doesn’t matter. |
b) |
No, I don’t. |
| c) |
Yes, I do. |
d) |
I’m sure it’s very important for every engineer. |
ЗАДАНИЕ № 18 (- выберите один вариант ответа)
Выберите реплику, наиболее соответствующую ситуации общения
Boss: “What’s the matter, Sarah? ………”
Secretary: “No. I’ve had a terrible cold. I’ve been in bed all weekend, but it’s better today. ”
ВАРИАНТЫ ОТВЕТОВ:
| a) |
Right … sorry. |
b) |
OK. Thank you very much. |
| c) |
Of course |
d) |
You don’t look very well. |
ЗАДАНИЕ № 19 (- выберите один вариант ответа)
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Beefeater is a ……… at the Tower of London.
ВАРИАНТЫ ОТВЕТОВ:
| a) |
steward |
b) |
secretary |
| c) |
boss |
d) |
guard |
ЗАДАНИЕ № 20 (- выберите один вариант ответа)
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The United States of America is a ……… .
ВАРИАНТЫ ОТВЕТОВ:
| a) |
city |
b) |
area |
| c) |
continent |
d) |
country |
ЗАДАНИЕ № 21 (- выберите один вариант ответа)
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Canada is larger than ………
ВАРИАНТЫ ОТВЕТОВ:
| a) |
the North American continent |
b) |
the South American continent |
| c) |
Brazil |
d) |
The Earth |
ЗАДАНИЕ № 22
Заполните пропуск
George Washington was the 1st US ……….
ВАРИАНТЫ ОТВЕТОВ:
| a) |
Monarch |
b) |
President |
| c) |
Preacher |
d) |
Writer |
ЗАДАНИЕ № 23 (- выберите один вариант ответа)
Прочитайте текст и выполните задания
Implements for Growing Crops
1. Many types of implements have been developed for the activities involved in growing crops. These activities include breaking ground, planting, weeding, fertilizing and combating pests. Some cereal crops are still planted by broadcasting seeds – that is, by scattering the seeds over a wide area. Machines for broadcasting usually consist of a long seedbox mounted on wheels and equipped with an agitator to distribute the seeds. Broadcast seeds are not always covered by a uniform or sufficient depth of soil, so seeding is more often done with drills, which produce continuous furrows of uniform depth. Specialized implements called planters are necessary for sowing crops that are planted in rows, such as maize. Maize planters and other similar machines have a special feed wheel that picks up small quantities of grain or separate kernels and places them in the ground.
2.Fertilizer can be distributed during the winter or shortly before seeding time. Commercial fertilizers are commonly distributed, along with seeds, by drills and planters. Manure is distributed most efficiently by a manure spreader, which is a wagon equipped with a bottom conveyer to carry the fertilizer back to a beater attachment, which disintegrates it and then scatters it on the ground.
3. After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control. Insecticides for pest control are applied to soil and crops in the form granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
4. Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
Определите, является ли утверждение:
“The use of alternative forms of pest control is the direct result of growing concern over the harmful effects that pesticides may have on the environment.”
a) В тексте нет информации
b) Истинным
с) Ложным
ЗАДАНИЕ № 24 (- выберите один вариант ответа)
Прочитайте текст и выполните задания
1. As the combine moves through the field, the gatherer points are positioned between the cornrows. The stalk rolls pull the cornstalks down so the deck plates will snap off the ears. Trash knives prevent weeds and trash from wrapping around the stalk rolls. The gatherer chains move the ears up to the auger. The auger moves the ears to the front of the feeder house where rubber paddles feed the ears into the feeder house. It costs time and money if the gatherer row components are worn or not properly maintained. Worn gatherer row components may result in: stalk roll wrapping, row unit plugging, feeder house plugging, ear loss, pulling up of cornstalks, kernel damage. Two critical parts that affect productivity on a corn head are the stalk rolls and gatherer chains.
2. The stalk rolls are formed from nodular iron and then placed in an automatic welding machine that hard-faces the surface of the stalk roll flutes. This ensures longer life for the stalk roll, season after season. On a new stalk roll, the flutes are straight. As the flute becomes worn, it becomes concave at the rear of the stalk roll. This concave shape will not allow the roll to aggressively pull the stalk downward and strip the ear from the stalk.
3. The fluted stalk rolls are designed with a more aggressive stalk-stripping action for increased feeding capacity in down or weedy crops. The straight flutes provide a tighter working area (outer edge of flute to body of adjacent stalk roll) to produce a more aggressive feeding action. The full-length flutes also provide a 55 percent longer crop engagement area between the rolls to allow for faster pull-through action.
4. Efficient corn harvesting depends on the strength and capacity of the corn head gatherer chain. The gatherer chain acts as a conveyor system to move the ears into the auger. Embossments in the sidebars and the flight lugs of the chain protect the connecting pinheads. Without these raised areas, the connecting pinheads would be exposed to excessive wear, resulting in premature chain failure. The face of each flight is extended down to create a lip between the sidebars. The lip prevents debris from collecting at the roller, and reduces drag and wear to the chain and sprockets. The flight face slants at a 15-degree angle away from the roller chain. This slight angle creates a self-cleaning effect as the flight moves the ears toward the auger. Every element of the chain-pins, bushings, flights, roller, and sidebars - is heat-treated for strength and long life.
Определите, является ли утверждение:
“Planters called specialized implements are unnecessary for sowing crops that are planted in rows, such as maize.”
a) В тексте нет информации
b) Истинным
с) Ложным
ЗАДАНИЕ № 25 ( -выберите один вариант ответа)
Прочитайте текст и выполните задания
Implements for Growing Crops
1. Many types of implements have been developed for the activities involved in growing crops. These activities include breaking ground, planting, weeding, fertilizing and combating pests. Some cereal crops are still planted by broadcasting seeds – that is, by scattering the seeds over a wide area. Machines for broadcasting usually consist of a long seedbox mounted on wheels and equipped with an agitator to distribute the seeds. Broadcast seeds are not always covered by a uniform or sufficient depth of soil, so seeding is more often done with drills, which produce continuous furrows of uniform depth. Specialized implements called planters are necessary for sowing crops that are planted in rows, such as maize. Maize planters and other similar machines have a special feed wheel that picks up small quantities of grain or separate kernels and places them in the ground.
2.Fertilizer can be distributed during the winter or shortly before seeding time. Commercial fertilizers are commonly distributed, along with seeds, by drills and planters. Manure is distributed most efficiently by a manure spreader, which is a wagon equipped with a bottom conveyer to carry the fertilizer back to a beater attachment, which disintegrates it and then scatters it on the ground.
3. After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control. Insecticides for pest control are applied to soil and crops in the form granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
4. Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
Определите, является ли утверждение:
“The disc harrow is used mainly to cut up crop residues before ploughing and to bury weeds during seedbed preparation.”
a) В тексте нет информации
b) Истинным
с) ложным
ЗАДАНИЕ № 26 (- выберите один вариант ответа)
Прочитайте текст и выполните задания
Implements for Growing Crops
1. Many types of implements have been developed for the activities involved in growing crops. These activities include breaking ground, planting, weeding, fertilizing and combating pests. Some cereal crops are still planted by broadcasting seeds – that is, by scattering the seeds over a wide area. Machines for broadcasting usually consist of a long seedbox mounted on wheels and equipped with an agitator to distribute the seeds. Broadcast seeds are not always covered by a uniform or sufficient depth of soil, so seeding is more often done with drills, which produce continuous furrows of uniform depth. Specialized implements called planters are necessary for sowing crops that are planted in rows, such as maize. Maize planters and other similar machines have a special feed wheel that picks up small quantities of grain or separate kernels and places them in the ground.
2.Fertilizer can be distributed during the winter or shortly before seeding time. Commercial fertilizers are commonly distributed, along with seeds, by drills and planters. Manure is distributed most efficiently by a manure spreader, which is a wagon equipped with a bottom conveyer to carry the fertilizer back to a beater attachment, which disintegrates it and then scatters it on the ground.
3. After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control. Insecticides for pest control are applied to soil and crops in the form granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
4. Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
Определите, является ли утверждение:
“Since ancient times people have used different tools to help them grow and harvest crops.”
a) В тексте нет информации
b) Истинным
с) Ложным
ЗАДАНИЕ № 27 (- выберите один вариант ответа)
Прочитайте текст и выполните задания
Implements for Growing Crops
1. Many types of implements have been developed for the activities involved in growing crops. These activities include breaking ground, planting, weeding, fertilizing and combating pests. Some cereal crops are still planted by broadcasting seeds – that is, by scattering the seeds over a wide area. Machines for broadcasting usually consist of a long seedbox mounted on wheels and equipped with an agitator to distribute the seeds. Broadcast seeds are not always covered by a uniform or sufficient depth of soil, so seeding is more often done with drills, which produce continuous furrows of uniform depth. Specialized implements called planters are necessary for sowing crops that are planted in rows, such as maize. Maize planters and other similar machines have a special feed wheel that picks up small quantities of grain or separate kernels and places them in the ground.
2.Fertilizer can be distributed during the winter or shortly before seeding time. Commercial fertilizers are commonly distributed, along with seeds, by drills and planters. Manure is distributed most efficiently by a manure spreader, which is a wagon equipped with a bottom conveyer to carry the fertilizer back to a beater attachment, which disintegrates it and then scatters it on the ground.
3. After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control. Insecticides for pest control are applied to soil and crops in the form granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
4. Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
Укажите, какой части текста (1,2,3,4) соответствует следующая информация:
“Different mechanical spraying and dusting equipment is used to spread chemicals on crops and fields”
ВАРИАНТЫ ОТВЕТОВ:
ЗАДАНИЕ № 28 (- выберите один вариант ответа)
Прочитайте текст и выполните задания
Implements for Growing Crops
1. Many types of implements have been developed for the activities involved in growing crops. These activities include breaking ground, planting, weeding, fertilizing and combating pests. Some cereal crops are still planted by broadcasting seeds – that is, by scattering the seeds over a wide area. Machines for broadcasting usually consist of a long seedbox mounted on wheels and equipped with an agitator to distribute the seeds. Broadcast seeds are not always covered by a uniform or sufficient depth of soil, so seeding is more often done with drills, which produce continuous furrows of uniform depth. Specialized implements called planters are necessary for sowing crops that are planted in rows, such as maize. Maize planters and other similar machines have a special feed wheel that picks up small quantities of grain or separate kernels and places them in the ground.
2.Fertilizer can be distributed during the winter or shortly before seeding time. Commercial fertilizers are commonly distributed, along with seeds, by drills and planters. Manure is distributed most efficiently by a manure spreader, which is a wagon equipped with a bottom conveyer to carry the fertilizer back to a beater attachment, which disintegrates it and then scatters it on the ground.
3. After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control. Insecticides for pest control are applied to soil and crops in the form granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
4. Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
Укажите, какой части текста (1,2,3,4) соответствует следующая информация:
“However, commercial fertilizers are usually distributed, along with seeds, by drills and planters.”
ВАРИАНТЫ ОТВЕТОВ:
ЗАДАНИЕ № 29 (- выберите один вариант ответа)
Прочитайте текст и выполните задания
Implements for Growing Crops
1. Many types of implements have been developed for the activities involved in growing crops. These activities include breaking ground, planting, weeding, fertilizing and combating pests. Some cereal crops are still planted by broadcasting seeds – that is, by scattering the seeds over a wide area. Machines for broadcasting usually consist of a long seedbox mounted on wheels and equipped with an agitator to distribute the seeds. Broadcast seeds are not always covered by a uniform or sufficient depth of soil, so seeding is more often done with drills, which produce continuous furrows of uniform depth. Specialized implements called planters are necessary for sowing crops that are planted in rows, such as maize. Maize planters and other similar machines have a special feed wheel that picks up small quantities of grain or separate kernels and places them in the ground.
2.Fertilizer can be distributed during the winter or shortly before seeding time. Commercial fertilizers are commonly distributed, along with seeds, by drills and planters. Manure is distributed most efficiently by a manure spreader, which is a wagon equipped with a bottom conveyer to carry the fertilizer back to a beater attachment, which disintegrates it and then scatters it on the ground.
3. After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control. Insecticides for pest control are applied to soil and crops in the form granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
4. Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
Ответьте на вопрос
“How are certain pests controlled by?”
ВАРИАНТЫ ОТВЕТОВ:
| a) |
They are controlled by introducing an organism that damages or kills the pests and the crops. |
b) |
They are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. |
| c) |
They are controlled by introducing a mechanism that damages or kills the pests, but leaves the crops unharmed. |
d) |
They are controlled by introducing an organism that damages or kills both the pests and the crops. |
ЗАДАНИЕ № 30 (- выберите один вариант ответа)
Прочитайте текст и выполните задания
Implements for Growing Crops
1. Many types of implements have been developed for the activities involved in growing crops. These activities include breaking ground, planting, weeding, fertilizing and combating pests. Some cereal crops are still planted by broadcasting seeds – that is, by scattering the seeds over a wide area. Machines for broadcasting usually consist of a long seedbox mounted on wheels and equipped with an agitator to distribute the seeds. Broadcast seeds are not always covered by a uniform or sufficient depth of soil, so seeding is more often done with drills, which produce continuous furrows of uniform depth. Specialized implements called planters are necessary for sowing crops that are planted in rows, such as maize. Maize planters and other similar machines have a special feed wheel that picks up small quantities of grain or separate kernels and places them in the ground.
2.Fertilizer can be distributed during the winter or shortly before seeding time. Commercial fertilizers are commonly distributed, along with seeds, by drills and planters. Manure is distributed most efficiently by a manure spreader, which is a wagon equipped with a bottom conveyer to carry the fertilizer back to a beater attachment, which disintegrates it and then scatters it on the ground.
3. After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control. Insecticides for pest control are applied to soil and crops in the form granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
4. Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
Ответьте на вопрос:
“What is still planted by broadcasting seeds?”
ВАРИАНТЫ ОТВЕТОВ:
| a) |
Some cereal crops are still planted by broadcasting seeds. |
b) |
Some vegetables are still planted by broadcasting seeds. |
| c) |
Some organisms are still planted by broadcasting seeds. |
d) |
All cereal crops are still planted by broadcasting seeds. |
ЗАДАНИЕ № 31
Составьте рассказ из 10 – 15 предложений на тему «Rostov-on-Don».
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