报刊语料库在航海英语阅读教学中的应用

以自建航海英语报刊语料库为基础,探讨如何在航海英语阅读教学中利用报刊英语语料库辅助教学,引导学生借助语境共现、词频表和关键词表等来进行英语学习,以达到快速掌握航海英语词汇,提高阅读速度和增强阅读理解能力,培养学生的跨文化交际意识等教学目标。     

英语介词语义范畴转换研究

英语介词数量较大，用法灵活，长期以来一直是TEFL教学的一项重要内容。英语介词的语义及其语义范畴不是固定的、一成不变的，在不同的语言环境下，它们的语义范畴会呈现不同的类型特征，从语言学的角度来看，英语介词语义范畴转换具有自身的规律和特点。充分了解和掌握英语介词语义范畴转换有助于学习者更加全面、准确地理解和使用英语介词。     

Setting limits for acceptable change in sediment particle size composition: Testing a new approach to managing marine aggregate dredging

A baseline dataset from 2005 was used to identify the spatial distribution of macrofaunal assemblages across the eastern English Channel. The range of sediment composition found in association with each assemblage was used to define limits for acceptable change at ten licensed marine aggregate extraction areas. Sediment data acquired in 2010, 4 years after the onset of dredging, were used to assess whether conditions remained within the acceptable limits. Despite the observed changes in sediment composition, the composition of sediments in and around nine extraction areas remained within pre-defined acceptable limits. At the tenth site, some of the observed changes within the licence area were judged to have gone beyond the acceptable limits. Implications of the changes are discussed, and appropriate management measures identified. The approach taken in this study offers a simple, objective and cost-effective method for assessing the significance of change, and could simplify the existing monitoring regime.     

Assessing changes in extreme sea levels: Application to the English Channel, 1900–2006

A recently extended and spatially rich English Channel sea level dataset has been used to evaluate changes in extreme still water levels throughout the 20th century. Sea level records from 18 tide gauges have been rigorously checked for errors and split into mean sea level, tidal and non-tidal components. These components and the interaction between surge and tide have been analysed separately for significant trends before determining changes in extreme sea level. Mean sea level is rising at 0.8–2.3 mm/year, depending on location. There is a small increase (0.1–0.3 mm/year) in the annual mean high water of astronomical tidal origin, relative to mean sea level, and an increase (0.2–0.6 mm/year) in annual mean tidal range. There is considerable intra- and inter-decadal variability in surge intensity with the strongest intensity in the late 1950s. Storm surges show a statistically significant weak negative correlation to the winter North Atlantic Oscillation index throughout the Channel and a stronger significant positive correlation at the boundary with the southern North Sea. Tide–surge interactions increase eastward along the English Channel, but no significant long-term changes in the distribution of tide–surge interaction are evident. In conclusion, extreme sea levels increased at all of the 18 sites, but at rates not statistically different from that observed in mean sea level.     

经济欠发达地区非英语专业师范类学生英语学习动机实证研究——以湛江师范学院为例

以湛江师范学院非英语专业师范类的大学生为问卷对象,调查师范类非英语专业学生英语学习动机,探讨其在功利因素、个人素养、学习情境、出国动机和社会责任动机方面的特性,挖掘其深层次原因,并提出教学模式以学生为中心,培养学生学习英语的长期目标,教学内容应满足社会需求的教学对策。     

重组抗菌肽海藻酸钠微囊制备与体外释放特征研究

对重组表达的海洋生物抗菌肽对虾素3-2进行亲和层析纯化,以海藻酸钠为壁材,采用凝聚法制备了重组抗菌肽海藻酸钠微囊,以微囊的形态和包封率为指标优化制备工艺,对制备的微囊进行体外释放特征的初步研究。结果显示,在氯化钙浓度为1.5%,海藻酸钠浓度为2.0%时,制备的微囊为完整的球形,冷冻干燥后的直径约为1.1 mm,包封率为83.87%。微囊在模拟胃液(pH 2.0)中2 h左右释放量趋于稳定,释放量低于14%;微囊在模拟肠液(pH 7.8)中不断释放,5 h时释放量达98%,表明微囊具有良好的肠溶性而可以抵抗胃液的破坏,可以用作重组抗菌肽缓释/控释制剂,为抗菌肽在水产病害防治过程的口服给药提供实验基础。     

The communicative competence of Chinese seafarers and their employability in the international maritime labour market

In the past two decades, the seafarer workforce in China has been growing at a much faster pace than that of the Chinese merchant fleet, resulting in an oversupply of seafarers in the domestic market. As one of the major seafarer suppliers in the world, China still faces great challenges to assign Chinese seafarers to the international maritime labour market. Although literature claims that a lack of English communication ability of Chinese seafarers is one of the main barriers for them to compete with seafarers of other nationalities for job opportunities, there is little empirical research to substantiate such claim. To fill this gap, this paper aims to investigate: 1) employers’ views on the current level of Chinese seafarers’ communicative competence; and 2) to what extent their communicative competence correlates with their employability in the international maritime labour market. To achieve the research objectives, a questionnaire survey relating to factors affecting the employability of Chinese seafarers on foreign ships was conducted. Interviews were carried out with employers who had been recruiting seafarers in China. The findings show that English communicative competence is among the top determinants for seafarers to be employed on foreign ships. Most employers believe that there has been a declining trend in the communicative competence of Chinese seafarers over the last decade. Employers interviewed agree that a high priority should be placed on the improvement of quality of maritime English teachers.     

Simultaneous estimates ofsynechococcus spp. Growth and grazing mortality rates in the English Channel

The marine chroococooid phycoerythrin-containingSynechococcus spp. cyanobacterium has been implicated as a substantial component of the photosynthetic picoplankton in the ocean. Although its importance as food source for heterotrophic nanoplankton is now recognized, information about the cycling ofSynechococcus biomass and its diel pattern is limited and study methodology varies among authors. The selective metabolic inhibitor method was used to simultaneously estimate growth and grazing disappearance rates ofSynechococcus in the English Channel where growth rates ranged from 0.25 to 0.72/d (mean ±SD=0.51±0.17/d) and grazing mortality rates ranged from 0.19 to 0.64/d (mean ±SD=0.48±0.17/d). Size-fractionated experiments demonstrated that up to 70% ofSynechococcus disappearance could be attributed to grazers going through a 2 μm Nuclepore filter.Synechococcus grazing mortality rates (mean=0.74 ±0.25/d) during the day were always higher than that (mean=0.2±0.20/d) during the night, while growth rates showed no clear diel pattern. A positive correlation was observed between growth rates andin situ temperature ranging from 9 to 17°C, while in contrast grazing was independent of temperature. The close similatiry between average growth and grazing rates suggests a rapid recycling ofSynechococcus biomass in English Channel coastal waters.     

对<测绘学名词>中若干问题的探讨

有关测绘学科海峡两岸中英文名词对照，测绘学名词审定委员会(以下简称“名词委”)正在进行这方面的工作，所有的大陆名及其相应的英文名都是从2002年公布的《测绘学名词》(第二版，以下简称《名词》)中转过来的。我们发现《名词》中，存在若干问题值得商榷。