BEIJING—As China scrambles to respond to the choking smog that has blanketed Beijing in recent weeks, authorities in several major cities are experimenting with carbon trading platforms. The schemes are one effort to get control over greenhouse gases in an economy still hungry for cheap energy.
It has been a persistent concern in recent years, but the spiking pollution levels in January are sparking a public outcry.
Emissions from coal-fired electricity plants and busy factories are part of the problem that officials hope to get control over through carbon trading platforms. Seven cities are expected to open carbon markets later this year, including Tianjin.
“The government has decided to start with programs because the carbon trading is something new to China,” said David Tang, secretary of the board of the Tianjin Carbon Exchange. “So we want to have a number of programs to explore the use of the market.” said Tang.
China wants to launch a national carbon trading program by 2016. If it is successful, analysts say, the program would be one of the largest in the world and would help the country meet its target of cutting carbon dioxide emissions by 45 percent within seven years.
The platforms allow companies to earn credits for lowering greenhouse gas emissions, which can then be traded. If it works, it would encourage for-profit businesses to invest in green technology.
As public concern builds pressure for the government to find a solution, Wu Changhua, greater China director of the Climate Group, says there is a broad shift under way in how Chinese weigh their quality of life.
China has long put economic growth ahead of environmental concerns, making it the world’s biggest polluter. Carbon trading supporters hope that the markets could be one way to curb pollution and keep the economy growing.
小题1:Which of the following is TRUE about carbon trading platforms?
A．They are used to trade various resources.
B．They caused the choking smog in China.
C．They have been in existence for many years in China.
D．The choking smog may promote their development.小题2:The underlined word in Paragraph 1 means “ ______”.
A．to make blanket
B．to cover something
C．to make something empty
D．to be like a blanket小题3:Tang’s attitude towards carbon markets is ______.
A．unknown
B．indifferent
C．optimistic
D．pessimistic小题4:What can we infer from the passage?
A．China will have built a national carbon trading program by 2016.
B．Chinese have lived a life of high quality in all aspects.
C．The markets could slow the development of economy.
D．Standards of life will be changed in China.小题5:What's the main idea of this passage?
A．The choking smoke in China.
B．The urge for carbon trading platforms.
C．Greenhouse gases.
D．The world’s biggest polluter.
6Cu+SO2↑，该反应的氧化剂是 
10V+5Al2O3
2CuSO4+2H2O 
6Cu+SO2↑中，元素化合价降低的是Cu，所以氧化剂是Cu2O、Cu2S；