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 44 to 50.
For many people who live in cities, parks are an important part of the landscape. They provide a place for people to relax and play sports, as well as a refuge from the often harsh environment of a city. What people often overlook is that parks also provide considerable environmental benefits.
One benefit of parks is that plants absorb carbon dioxide—a key pollutant—and emit oxygen, which humans need to breathe. According to one study, an acre of trees can absorb the same amount of carbon dioxide that a typical car emits in 11,000 miles of driving. Parks also make cities cooler. Scientists have long noted what is called the Urban Heat Island Effect: building materials such as metal, concrete, and asphalt absorb much more of the sun’s heat and release it much more quickly than organic surfaces like trees and grass. Because city landscapes contain so much of these building materials, cities are usually warmer than surrounding rural areas. Parks and other green spaces help to mitigate the Urban Heat Island Effect.
Unfortunately, many cities cannot easily create more parks because most land is already being used for buildings, roads, parking lots, and other essential parts of the urban environment. However, cities could benefit from many of the positive effects of parks by encouraging citizens to create another type of green space: rooftop gardens. While most people would not think of starting a garden on their roof, human beings have been planting gardens on rooftops for thousands of years. Some rooftop gardens are very complex and require complicated engineering, but others are simple container gardens that anyone can create with the investment of a few hundred dollars and a few hours of work.
Rooftop gardens provide many of the same benefits as other urban park and garden spaces, but without taking up the much-needed land. Like parks, rooftop gardens help to replace carbon dioxide in the air with nourishing oxygen. They also help to lessen the Urban Heat Island Effect, which can save people money. In the summer, rooftop gardens prevent buildings from absorbing heat from the sun, which can significantly reduce cooling bills. In the winter, gardens help hold in the heat that materials like brick and concrete radiate so quickly, leading to savings on heating bills. Rooftop vegetable and herb gardens can also provide fresh food for city dwellers, saving them money and making their diets healthier. Rooftop gardens are not only something everyone can enjoy, they are also a smart environmental investment.
According to the author, one advantage that rooftop gardens have over parks is that they ______________
A. do not require the use of valuable urban land
B. decrease the Urban Heat Island Effect
C. replenish the air with nourishing oxygen
D. are less expensive than traditional park spaces
Đáp án A
Thông tin: Rooftop gardens provide many of the same benefits as other urban park and garden spaces, but without taking up the much-needed land.
Dịch nghĩa: Khu vườn thượng cung cấp nhiều lợi ích như không gian công viên và vườn đô thị khác, nhưng mà không chiếm phần đất rất cần thiết.
Đó chính là lợi ích của vườn thượng hơn hẳn so với công viên. Phương án A. do not require the use of valuable urban land = không yêu cầu sử dụng đất đô thị quý giá, là phương án chính xác nhất.
B. decrease the Urban Heat Island Effect = giảm hiệu ứng đảo nhiệt đô thị.
“Parks and other green spaces help to mitigate the Urban Heat Island Effect … Like parks, rooftop gardens help to replace carbon dioxide in the air with nourishing oxygen. They also help to lessen the Urban Heat Island Effect” = Công viên và các không gian xanh khác sẽ giúp giảm thiểu hiệu ứng đảo nhiệt đô thị ... Giống như công viên, vườn trên mái nhà giúp thay thế carbon dioxide trong không khí bằng oxy bổ dưỡng. Chúng cũng giúp làm giảm bớt hiệu ứng đảo nhiệt đô thị.
Như vậy cả công viên và vườn thượng đều giúp giảm hiệu ứng đảo nhiệt đô thị.
C. replenish the air with nourishing oxygen = bổ sung lượng khí oxy bổ dưỡng
“One benefit of parks is that plants absorb carbon dioxide—a key pollutant—and emit oxygen, which humans need to breathe … Like parks, rooftop gardens help to replace carbon dioxide in the air with nourishing oxygen” = Một lợi ích của công viên là thực vật hấp thụ chất ô nhiễm và khí cacbonic, một chất ô nhiễm quan trọng, và phát ra oxy, mà con người cần phải thở ... Giống như công viên, vườn trên mái nhà giúp thay thế carbon dioxide trong không khí bằng oxy bổ dưỡng.
Như vậy cả công viên và vườn thượng đều bổ sung lượng khí oxy bổ dưỡng.
D. are less expensive than traditional park spaces = ít tốn kém hơn so với các không gian công viên truyền thống.
Không có thông tin như vậy trong bài