After decades of effort, the city is still trying to _____ how to stop smoking in public places.
A.try out B.let out C.figure out D.run out
高一英语单项填空中等难度题
After decades of effort, the city is still trying to _____ how to stop smoking in public places.
A.try out B.let out C.figure out D.run out
高一英语单项填空中等难度题查看答案及解析
The rapid growth of cities worldwide over the next two decades will cause significant risks to people and the global environment, according to analysis.
Researches from Yale and Stanford predict that by 2030 urban areas will expand by 590,000 square miles—nearly the size of Mongolia—to meet the needs of 1.47 billion more people living in urban areas.
“It is likely that these cities are going to be developed in places that are the most biologically diverse,” said Karen Seto, a famous scientist at Yale University. “They are going to be growing and expanding into forests, biological hotspots, savannas(热带稀缺大草原), coastlines—sensitive and vulnerable places.”
Urban areas, they found, have been expanding more rapidly along coasts. “Of all the places for cities to grow, coasts are the most sensitive. People and buildings along the coast are at risk of flooding and other environmental disasters,” said Seto.
The study provides the first estimate of how fast urban areas globally are growing and how fast they may grow in the future. “We know a lot about global patterns of urban population growth, but we know significantly less about how urban areas are changing,” she said. “Changes in land cover associated with urbanization lead to many environmental changes, from habitats loss and agricultural land conversion(转化) to changes in local and regional climate.”
The researchers examined studies that used satellite data to map urban growth and found that from 1970 to 2000 the world’s urban footprint had grown by at least 22,400 square miles—half the size of Ohio.
“This number is numerous, but, in actuality, urban land expansion has been far greater than what our analysis shows because we only looked at the published studies that used satellite data,” said Seto. “We found that 48 of the most populated urban areas have been studied using satellite data, with findings in journals. This means that we’re not tracking the physical expansion of more than half of the world’s largest cities.”
Half of urban land expansion in China is driven by a rising middle class, whereas the size of cities in India and Africa is driven primarily by population growth. “Rising incomes translate into rising demand for bigger homes and more land for urban development, which has a great effect on biodiversity conservations, loss of carbon sinks and energy use.”
1.According to the passage, the most dangerous place for city expansion is the _____.
A．forest B．desert C．savannas D．coastline
2.The underlined word “vulnerable” (in Para. 3) probably means “____”.
A．diverse in plants B．beautiful in scenery
C．easily damaged D．very productive
3.From Para. 5, we can infer that ____.
A．urbanization is a good way to improve people’s standards of living
B．cities develop very fast and more and more people come to live in cities
C．more and more agricultural farmlands are used to make room for local animals
D．in the past, researchers focused their attention on the expanding urban areas
4.Cities in Africa become bigger and bigger mainly because of their ____.
A．growing population B．rising middle class
C．unique living patterns D．economic development
高一英语阅读理解中等难度题查看答案及解析
The couple tried every effort to ________ the judges, who tried the cases, of their innocence (清白) only________ in the contrary.
A. prove; to result B. charge; resulting C. convince; to result D. confirm; resulting
高一英语单项填空简单题查看答案及解析
After the quake, the whole city lay in ____ ruins. However, with all the efforts, ________ new Tangshan was born.
A. /; a B. the; /
C. /; the D. the; the
高一英语单项填空中等难度题查看答案及解析
In order to advance the development of Yancheng, the city government tries to beautify it as soon as possible. Several new special projects are ______.
A. under construct B. under building C. under way D. under repair
高一英语单项填空简单题查看答案及解析
（题文）The park ___ life in the days of King Arthur is one of the main __ of the city.
A. modeling after, attraction B. is modeled after, attractions
C. to model after, attraction D. modeled after; attractions
高一英语单项填空中等难度题查看答案及解析
The enemies tried to ____ the city, but they failed in the end.
A. make possession of B. take possession of
C. be covered with D. make up of
高一英语单项填空简单题查看答案及解析
The enemies tried to ____ the city, but they failed in the end.
| A．make possession of | B．take possession of |
| C．be covered with | D．make up of |
高一英语单项填空简单题查看答案及解析
It is _____third time that John has failed, but he still hopes to have_____ fourth try.
A. the; the B. a; the C. the; a D. a; a
高一英语单项填空中等难度题查看答案及解析
Seven days after the terrible earthquake,hopes began to that any of the people still missing might be found alive.
A. flash B. fade
C. float D. flee
高一英语单项填空中等难度题查看答案及解析