مطالب

Formulaic sequences (FSs) are among the most commonly discussed and well-documented effective factors in oral fluency both in L1 and L2. The present study aims to investigate the effect of teaching a set of 140 FSs on Iranian EFL learners' oral fluency. The relationship between the use of FSs and different measures of oral fluency is also studied empirically. Forty-eight intermediate EFL learners took part in the study. The participants were randomly assigned into two experimental groups and one control group. One of the experimental groups was taught the FSs with spaced retrievals. The other experimental group was also taught the FSs but with non-spaced retrievals. The control group was taught no FSs. The posttest was conducted one week after the treatment. Multivariate analysis of variance (MANOVA) and other statistical procedures were used for analyzing the data. The results indicated that spaced productive retrieval of the FSs after their explicit and holistic teaching, helped the learners to have longer mean length of runs. The present findings have important implications for solving students' problems in speaking the second language. Therefore, the significance of spaced retrieval of FSs in language teaching and learning should not be neglected.

Dogme Language Teaching (Dogme ELT) is an innovative learner-centered methodology and a movement for teaching English (or any other L2) that primarily focuses on face-to-face interaction between teacher and learners and among the learners themselves (Thornbury, 2009) without using any preplanned and established instructional materials, syllabuses, or preset activities. Despite many claims by the proponents, research evidence for Dogme ELT is very limited; accordingly, this sequential explanatory mixed-method study sought to examine the effect of Dogme ELT on L2 speaking andwillingness to communicate (WTC)across different proficiency levels among Iranian EFL learners at a private language institute. Participants included 14 intermediate, 12 upper-intermediate, and 12 advanced level learners from both genders in three intact classes as the experimental groups. Three other intact classes comprising 13 intermediate, 13 upper-intermediate, and 11 advanced level learners, respectively were selected as control groups who received the mainstream communicative language teaching (CLT) for their L2 instruction. The treatments continued for two subsequent semesters including thirty 1.5-hour sessions. Quantitative data analysis using two-way ANCOVA revealed that Dogme ELT was more effective than CLT only for the advanced but not for the intermediate and upper-intermediate learners’ speaking and WTC. Qualitative data analysis revealed that most advanced and only some upper-intermediate learners had positive attitudes about Dogme ELT. The findings of the current investigation suggest that Dogme ELT should be used for advanced EFL levels and its application should be done with more caution.

The present study examined the effect of multimedia glosses on foreign language listening comprehension. To this end, 94 male students studying at Rasa English Institute in Tehran were selected for the treatment. The participants consisted of three groups, and each group was randomly assigned to one of the following treatment conditions: textual, pictorial, and textual-pictorial glossing. They were given a vocabulary pre-test before the treatment. The purpose of this test was to exclude the words which were already familiar to the participants from the posttests. Meanwhile, a listening comprehension post-test was administered at the end of the treatment period. To investigate the effect of multimedia glosses on listening comprehension, the data obtained from the listening comprehension post-test were analyzed using one-way ANOVA. The result showed that textual-pictorial glosses had a significant effect on listening comprehension. The findings of this study may have implications for language learners, teachers, researchers, and materials developers.

Purpose - Land subsidence is caused by natural factors and human activities around the world. Fars Province, located in the south of Iran, is subject to land subsidence due to the uncontrolled exploitation of groundwater, causing damages to the population and human settlements and also environmental, social and economic areas. Design/methodology/approach - The present research is descriptive in terms of describing land subsidence in the case study region, whereas it is also analytical as time series analysis techniques based on Radar Interferometry (InSAR) is applied to monitor temporal changes in subsidence in Darab and Fasa Plains, including 470 rural points. Using 8 ENVISAT ASAR images spanning between 2005 and 2010, nine Interferograms were processed. In the study area. Geographic Information System (GIS) is then used to study groundwater level decline at the well locations in a 24-year period (from 1991 to 2015). Findings - The results of the research confirm that there is a significant correlation between groundwater water level decline and land surface subsidence. Time series analysis of the processed Interferograms indicate the mean displacement velocity map, demonstrating the maximum subsidence rate of 25 cm/yr. The InSAR analysis reveal within the study area subsidence rate of 25 cm/year in 24 years period and locally exceeding 30 cm/yr in the last decade. This area of significant subsidence is limited in its spatial extent to the agricultural land and is partly influenced by the large-scale over-exploitation of groundwater resources in the region study. The temporal and areal relationships of subsidence and groundwater level data suggest that a significant part of the observed subsidence in the Darab region is caused by intense groundwater extraction which has led to widespread compaction within the upper parts of the up to 300m. Socioeconomic analysis and the subsidence hazard map show that 105523 people are generally at risk of subsidence, of 65068 who are at high risk. In addition, there are 2679 socioeconomic infrastructures such as public service at risk of damage by land subsidence. Research limitations/implications - Limitation in In SAR data access, especially for long-term data was one of the main limitations in land subsidence research and also in this research. Practical implications - Integrated water resource management and the observed extraction of groundwater could influence the subsidence rate in the regions exposed to land subsidence. Originality/value - This research will be important to provide vulnerability in regions with groundwater overexploitation.