[单项选择]The developing nations want rich countries to help shoulder the cost of （） forests.
A. updating
B. upgrading
C. conserving
D. constructing

[填空题]If developing countries want to prevent the growth of environmental refugees, it is absolutely essential that ____________________(保持可持续发展以及提供良好的输水系统).

[单项选择]Researchers from developing countries have gathered ______ the effects of recent increases in air pollution.
A. analyst
B. analysis
C. analyze
D. to analyze

[填空题]Some developing countries cannot even support their present populations，______(更不用说将来过多的人口了)．

[单项选择]

Besides climate change, developing countries like China need to deal with energy (21) and environmental issues: the development of sources of clean energy needs to be (22) line with their interests. Clean energy has been given greater prominence than ever before; it is seen as a new industrial (23) and (24) of economic growth for the new century. The time for clean energy has come.
In China, clean energy is moving ahead at full speed. Take wind power as an example: by the end of last year, China had (25) wind power generating capacity of 12.21 GW, making China the largest wind power generator in Asia and fourth in the world. But according to the research, one-third of wind power capacity is running (26) due to an inability to get the power to the national (27) .
India-like China—relies (28) on coal for its energy needs. This will only change if the funds and technology to develop clean en
A. effectively
B. regularly
C. slowly
D. idle