Modification of attitudes of regular class children towards the handicapped for the purpose of achieving integration

Two experimental procedures for positively modifying the attitudes of regular classroom children towards the handicapped were conducted. In both studies, curriculum and/or experiences with the handicapped were introduced to randomly selected groups of regular class elementary children. The curriculum consisted of literature, filmstrips, and lectures about handicapped children, while the experiences consisted of controlled integrational activities. The results indicated that the procedures were partially successful in modifying the attitudes of regular class children towards the handicapped. It was concluded that techniques must be developed systematically for achieving more positive attitudes in regular class children if “mainstreaming” is to become an effective educational concept.     

二语习得关键期假说探讨

本文首先介绍了二语习得关键期假说及其理论背景,之后通过前人的各项研究探讨关键期假说是否具有合理性,希望对教学有启示作用。     

Effect of the geometric shapes of specimens on impact tensile tests

The geometric shapes of specimens are important in impact tensile tests because geometric shapes determine the stress states of the specimens, and precise geometric shapes can obtain proper material properties without non-material factors. The aim of this study was to investigate the 1D form of the stress by changing the length-to-diameter （L/D） ratios of specimens. The experiments were carried out on a split Hopkinson tensile bar （SHTB）-rotating disk indirect bar-bar tensile impact apparatus. The L/D ratios of the LY12CZ specimens used in the test ranged from 1 to 5. Results show that the specimens can be used to obtain exact parameters of materials under the proposed conditions when the L/D ratio is greater than 2. This is because the longer length will reduce or eliminate the effects of the interfaces.     

An Empirical Research on DDL in L2 Writing

L2 （second language） writing teaching and research is greatly influenced by the advent of computer technology. This paper reviews papers, in the field of DDL （data-driven learning） in L2 writing, published in international journals and in Chinese journals, and differences are found in research methodology, research perspective, and research realm. Based on the analysis of the differences, the study aims at finding out the effects of the application of DDL in L2 teaching classroom. The present study, employing semi-structured writing and learning journals, explores how English learners perceive the use of corpora in their writing process. Based on the statistics, it is concluded that DDL in L2 writing is beneficial for vocabulary acquisition. However, corpus consultation does not work well for all learners. Learners＇ attitudes toward the use of corpus are various. The major findings may find application in teaching practice, and implications for teaching are discussed.     

基于单片机的智能测角仪设计

研究了一种基于STC12C5A60S2单片机的智能测角仪。该测角仪由加速度传感器模决MMA7455、时钟模块DS1302、温湿度模块DHT11、语音模块ISD4004组成,实现了角度、时间、温湿度的显示、存储以及语音播报的功能,具有一定的推广价值和实用性。     

基于L2TP／IPSec的企业远程移动办公网的构建

研究了安全的企业远程移动办公网络,首先介绍了L2TP和IPSec的相关概念和工作原理．然后介绍了基于L2TP／IPSec的企业网络方案,最后给出了该方案的具体构建方法。     

心理语言学视角下的“翻译法”学习策略

大多数教师都主张学习者在学习外语时要忘掉母语,可现实是“翻译法”学习策略屡禁不止。心理语言学研究表明,在学习第二语言时把学生大脑中的母语系统关闭掉是不可能的。Paradis等人的双语或多语语言处理模式则揭示出：第二语言子系统的生成依赖于母语系统,它与母语系统互相之间是动态发展、变化和影响的关系。这提示教师要正确认识“翻译法”学习策略的必然性及合理性,允许学生合理借助它帮助自己习得第二语言。     

运用速度推进导数的教学

在高等数学的教学中,运用我们熟悉的运动速度推进函数导数、L’Hospital法则以及泰勒公式的学习和理解,指出许多抽象的数学公式本就在我们的日常生活之中.