第一节阅读下列短文，从每题所给的四个选项(A、B、C和D)中选出最佳选项。

　　Chinese cities and towns are expected to absorb about 300 million people from rural areas in 20 years if the urbanization(城市化)drive maintains a growth of l per cent annually．

　　The massive migration of rural labourers will contribute greatly to the development of cities Liu He．Vice．minister of the office of the Central Leading Group of Financial and Economic Affairs, said yesterday．

　　The urbanization rate currently stands at 1.4 percent, which means．that about 20 million farmers become urban residents each year．

　　Statistics from Liu’s office indicate that nearly 40 percent of farmers’ annual per capital income last year,about 3,200yuat2(US$395), was earned in cities．

　　But China faces many problems i11 its urbanization drive, such as low wages and lack of social security for migrant labourers．Liu told the 2006 China Development Forum organized by the State Council Development and Research Centre．

　　To protect the fights of migrant workers。barriers such as the household registration system(or hukou)must be removed, suggested Yifu Lin, an economics professor at Peking University．

　　Liu said China would adopt a step-by-step reform of its decades-old hukou system but suggested that the“green card”system practised in Shanghai and some other cities——which enables long－term inhabitants to obtain urban hukou——be adopted in more cities．

　　In 2003, about l10 million surplus labourers left the farming sector and 61 per cent of the migrant of workers．or 69．1 million, worked in cities, Liu said．

　　In Wuxi of East China’s Jiangsu Province, for example, about 1.5 million 0f its 6 million population are from elsewhere．And 100,000－l 50,000 newcomers down in the city each year．He said．

　　The maximum population the city can accommodate is 8 million,Liu said．“It faces huge pressures on environment, resources, especially water in the next 10 years．”

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