Five categories of antibiotics viz., nineteen fluoroquinolones, sixteen sulfonamides, four tetracyclines, three chloramphenicols, four nitroimidazoles and three of their metabolites were measured in 72 water samples from the river near the livestock and poultry farms in Zhejiang province of China. 48.6 % water sample was positive with at least one drug residue. The detection frequency ranged from 8.3 % for fluoroquinolones to 37.5 % for chloramphenicols. For all the target veterinary drugs, florfenicol had the highest occurrence of 31.9 % with the mean concentration of 484.3 ng L-1. Based on the calculation of hazard quotients, the risk to the aquatic organisms was evaluated and it was demonstrated that the occurrence of sulfamethoxazole, sulfamonomethoxine and florfenicol might pose a risk to aquatic organisms in some study areas.
The ability to communicate effectively in English remains one of the well-established goals in English Language teaching. The essential interactive nature is the key to communicative competence. Given the fact that Chinese students learn English in an EFL setting, classroom language teaching becomes all the more valuable. Intensive reading course has been considered one of the comprehensive courses and a must for college students for decades in China. This paper, based on a quantitative research which offers a glimpse of the current situation of Intensive Reading Teaching in China, first addresses the role of language teacher and that of students in an interactive classroom and then addresses the significance of the application of interactive approach to the college Intensive Reading class, and finally proposes some feasible approaches to the language classroom teaching to better facilitate students' learning and use of foreign language by providing a sample class for illustration.
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