TBLT在大学英语口语教学中的实践

任务教学法(TBLT)是通过完成交际任务而使语言学习习得语言的一种教学方法。它作为交际教学法的一个分支，既有交际法的特点，也有它自身的优势，本旨在从该教学法的形成理论基础和特点出发，探讨将其用于大学英语口语教学实践，以提高学生的口头交际能力。     

论旅游可持续消费

本文旨在从消费的角度研究“可持续旅游”,内容包括旅游可持续消费的背景、内涵、意义和实现 途径等。     

高速公路隧道施工管理对于造价控制的影响探究

为了促进我国经济的进一步发展,我国政府进一步提高了高速公路的建设力度.为了保证高速公路隧道行业能够快速发展,就必须优化工程内容,其中把控好工程造价,不仅可以有效降低成本,提高经济效益,还可以极大地减少资源浪费,实现资源可持续发展和资源的合理配置.本文结合隧道工程造价控制现状,分析了高速公路隧道工程造价的影响因素,探讨了编制隧道造价的注意事项,为类似高速公路隧道工程造价管理提供参考.     

Hedonic models and air pollution: Twenty-five years and counting

This paper reports a meta analysis of how effectively hedonic property models have detected the influence of air pollution on housing prices. Probit estimates are reported describing how data, model specification, and local property market conditions in cities represented in thirty-seven studies influence the ability of hedonic models to uncover negative, statistically significant relationships between housing prices and air pollution measures.Partial support for this research was provided by the Russell Sage Foundation. Thanks are due David Cordray, Heidi Hartman, and Larry Hedges of the Foundation's Meta-Analysis Panel for constructive comments, to Ray Palmquist for suggestions and assistance in assembling the results from his studies, to Rick Freeman and Tom Tietenberg and two anonymous referees for comments on the research, and to Barbara Scott for constructive editing of earlier drafts of this paper.     

Modeling Disinterest and Dislike: A Bounded Bayesian Mixed Logit Model of the UK Market for GM Food

Mixed logit models represent a powerful discrete choice analytical model but require assumptions about the functional form of the parameter distributions. The use of unbounded distributions, such as the normal distribution, may be regarded as unsuitable where theory indicates that all are negatively affected by increases in an attribute, such as price. Bounded distributions such as the triangular and log-normal are unable to model the case where a section of the population is indifferent towards an attribute, while the remainder are negatively disposed toward it. Train and Sonnier’s bounded mixed logit model accommodates these features and is employed in this paper. A censored normal and Johnson’s S_b distribution are used to model preferences in the UK for food attributes, including price and GM technology. Bi-modal distributions are identified regarding GM food: some are unlikely to ever consume it, some are close to indifference and willing to consume at relatively small discounts while the remainder are fairly unresponsive to further price reductions.     

Economic reforms,efficiency and productivity in Chinese banking

This paper analyzes the impact of banking reforms on efficiency and total factor productivity (TFP) change in Chinese banking industry. Using an input distance function, we find that joint-equity banks are more efficient than wholly state-owned banks (WSOBs). Furthermore, both WSOBs and joint-equity banks are found to be operating slightly below their optimal size, suggesting potential advantages in expansion of their businesses. Overall, TFP growth was 4.4% per annum for the sample period 1993–2002. Joint-equity banks experienced much higher growth in TFP (5.5% per annum) compared to the WSOBs (1.4% per annum).