Marx and Engles believed that man and nature develop harmoniously, when the activities of man constitute the content of nature, which is changed constantly because of the activities of man. Marx and Engles also pointe...Marx and Engles believed that man and nature develop harmoniously, when the activities of man constitute the content of nature, which is changed constantly because of the activities of man. Marx and Engles also pointed out the duality of the conquest, change and influence exerted on nature by man. On one hand, it can improve people’s living conditions and make people free from the enslavement of the nature. On the other hand, it may also lead to excessively snatching and wrecking nature, then make the deterioration of the environment and ecology out of balance. They also, from the technical angle of ecology, put forward the concrete measures to realize the harmonious symbiosis of man and nature in the development of economy. They also believed that only when socialism or communism is realized, can the conciliation of mankind and nature be realized finally. Marx and Engle’s theory of harmonious symbiosis of man and nature is of great theoretical directive significance for us to insist on the scientific development view.展开更多
In the field of second language acquisition(SLA),weight has been increasingly attached to the role that a problem-pos ing model of education plays in English as second/foreign language(ES/FL)teaching and learning.By e...In the field of second language acquisition(SLA),weight has been increasingly attached to the role that a problem-pos ing model of education plays in English as second/foreign language(ES/FL)teaching and learning.By exploring various concepts of the problem-posing approach,also known as critical pedagogy,and its implications for English language teaching(ELT)in the Chinese postsecondary EFL context,the paper makes a tentative attempt to acknowledge the future directions of implementing critical pedagogy in the EFL context.Therefore,the paper is inspired by the ever-increasing popularity of the critical pedagogical approach in the ESL context.The application of critical orientation in language education derives from critical theories of the Frankfurt School,which centers on Marxist societal beliefs of struggling against social inequalities.With the concept of critical pedagogy drawing increasing attention from language educators and teachers alike in English-speaking countries;non-native English teachers who teach in the EFL context has also begun to focus their attention on the educational philosophy as a means to help transform traditional oppressed status of the Chinese EFL learners.From this perspective,this paper,by investigating the multi-dimensional implied meanings of implementing critical pedagogy in the EFL context,unraveling how it works as a way of"doing"in second language(L2)teaching and learning,identifying the probable contexts of critical pedagogy and the contesta tions surrounding critical pedagogy,aims to address the significance of implementing critical pedagogy as an effective way of re forming the ailing English education condition in China.展开更多
[Objectives] This study was conducted on tissue-culture rapid propagation techniques of Spathiphyllum kochii Engl. et Krause. [Methods] With lateral buds of S. kochii as explants, the effects of such four basic media ...[Objectives] This study was conducted on tissue-culture rapid propagation techniques of Spathiphyllum kochii Engl. et Krause. [Methods] With lateral buds of S. kochii as explants, the effects of such four basic media as MS, B5, Nitsch and Wpm and the ratio of two hormones(1, 2, 3 mg/L 6-BA and 0.1, 0.3, 0.5 mg/L NAA) on bud proliferation of S. kochii were studied by the complete test method, and the effect of the ratio of the two hormones(0.25, 0.50, 1.00 mg/L NAA and 1.0, 1.5 mg/L IBA) on rooting of S. kochii as well as the effect of substrate ratio(perlite and peat soil at 1∶9, 2∶8, 3∶7, 4∶6 and 5∶5) on its transplanting survival rate were also studied. [Results] The best basic medium for the rapid propagation of S. kochii was MS. The best hormone ratio suitable for bud proliferation was 2 mg/L6-BA+0.1 mg/L NAA, and the average number of buds proliferated at 45 d was 3.04. The average bud height was 2.05 cm; the most suitable medium for rooting was 1/2 MS+1 mg/L IBA+0.25 mg/L NAA, and its rooting rate was 100%; and the best transplanting substrate was 5∶5 perlite and peat. The soil ratio had a survival rate of 94%. [Conclusions] This study provides a theoretical basis for the improvement of the transplanting survival rate of test-tube S. kochii plantlets.展开更多
文摘Marx and Engles believed that man and nature develop harmoniously, when the activities of man constitute the content of nature, which is changed constantly because of the activities of man. Marx and Engles also pointed out the duality of the conquest, change and influence exerted on nature by man. On one hand, it can improve people’s living conditions and make people free from the enslavement of the nature. On the other hand, it may also lead to excessively snatching and wrecking nature, then make the deterioration of the environment and ecology out of balance. They also, from the technical angle of ecology, put forward the concrete measures to realize the harmonious symbiosis of man and nature in the development of economy. They also believed that only when socialism or communism is realized, can the conciliation of mankind and nature be realized finally. Marx and Engle’s theory of harmonious symbiosis of man and nature is of great theoretical directive significance for us to insist on the scientific development view.
文摘In the field of second language acquisition(SLA),weight has been increasingly attached to the role that a problem-pos ing model of education plays in English as second/foreign language(ES/FL)teaching and learning.By exploring various concepts of the problem-posing approach,also known as critical pedagogy,and its implications for English language teaching(ELT)in the Chinese postsecondary EFL context,the paper makes a tentative attempt to acknowledge the future directions of implementing critical pedagogy in the EFL context.Therefore,the paper is inspired by the ever-increasing popularity of the critical pedagogical approach in the ESL context.The application of critical orientation in language education derives from critical theories of the Frankfurt School,which centers on Marxist societal beliefs of struggling against social inequalities.With the concept of critical pedagogy drawing increasing attention from language educators and teachers alike in English-speaking countries;non-native English teachers who teach in the EFL context has also begun to focus their attention on the educational philosophy as a means to help transform traditional oppressed status of the Chinese EFL learners.From this perspective,this paper,by investigating the multi-dimensional implied meanings of implementing critical pedagogy in the EFL context,unraveling how it works as a way of"doing"in second language(L2)teaching and learning,identifying the probable contexts of critical pedagogy and the contesta tions surrounding critical pedagogy,aims to address the significance of implementing critical pedagogy as an effective way of re forming the ailing English education condition in China.
基金Supported by Research Project of Jingmen Science and Technology Bureau(YDKY2017008)
文摘[Objectives] This study was conducted on tissue-culture rapid propagation techniques of Spathiphyllum kochii Engl. et Krause. [Methods] With lateral buds of S. kochii as explants, the effects of such four basic media as MS, B5, Nitsch and Wpm and the ratio of two hormones(1, 2, 3 mg/L 6-BA and 0.1, 0.3, 0.5 mg/L NAA) on bud proliferation of S. kochii were studied by the complete test method, and the effect of the ratio of the two hormones(0.25, 0.50, 1.00 mg/L NAA and 1.0, 1.5 mg/L IBA) on rooting of S. kochii as well as the effect of substrate ratio(perlite and peat soil at 1∶9, 2∶8, 3∶7, 4∶6 and 5∶5) on its transplanting survival rate were also studied. [Results] The best basic medium for the rapid propagation of S. kochii was MS. The best hormone ratio suitable for bud proliferation was 2 mg/L6-BA+0.1 mg/L NAA, and the average number of buds proliferated at 45 d was 3.04. The average bud height was 2.05 cm; the most suitable medium for rooting was 1/2 MS+1 mg/L IBA+0.25 mg/L NAA, and its rooting rate was 100%; and the best transplanting substrate was 5∶5 perlite and peat. The soil ratio had a survival rate of 94%. [Conclusions] This study provides a theoretical basis for the improvement of the transplanting survival rate of test-tube S. kochii plantlets.
