Đáp án C
major: chính >< minor: nhỏ, thứ yếu
Đáp án C
major: chính >< minor: nhỏ, thứ yếu
Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.
When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.
Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (4) ______ of its soil. The roots of plants help to (5) ______ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground.
Điền vào số 1
A. cleans out
B. picks up
C. carries out
D. holds up
Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.
When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.
Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (4) ______ of its soil. The roots of plants help to (5) ______ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground.
Điền vào số 1
A. borders
B. topside
C. backside
D. hillsides
Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.
When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.
Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (4) ______ of its soil. The roots of plants help to (5) ______ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground.
Điền vào số 3
A. much
B. few
C. little
D. large
Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.
When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.
Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (4) ______ of its soil. The roots of plants help to (5) ______ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground.
Điền vào số 5
A. building
B. formed
C. melted
D. melting
Wind, water, air, ice and heat all work to cause erosion. As the wind blows over the land, it often (1) ______ small grains of sand. When these grains of sand strike against solid rocks, the rocks are slowly worn away. In this way, even very hard rocks are worn away by the wind.
When particles of rocks or soil became loosened in any way, running water carries them down the (3) ______. Some rocks and soil particles are carried into streams and then into the sea.
Land that is covered with trees, grass and other plants wears away very slowly, and so loses very (4) ______ of its soil. The roots of plants help to (5) ______ the rocks and soil in place. Water that falls on grasslands runs away more slowly than water that falls on bare ground.
Điền vào số 4
A. aid
B. facilitate
C. assist
D. help
Scientists warn of the impending extinction of many species of plants and animals.
A. irrefutable
B. imminent
C. formidable
D. Absolute
Visitors, especially children, can go there to learn how to recognize the different species of animals and plants.
A. pure
B. same
C. alike
D. whole
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.
Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.
This is not a new concern. As early as 1904, lead poisoning in children was linked to lead-based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint,plaster,or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk.
Question: What is the main topic of the passage?
A. problems with household paint
B. major health concern for children
C. lead poisoning in children
D. lead paint in order homes
I've _______ the application forms into three groups.
A. greeted
B. reported
C. ordered
D. said