浅议如何指导英语背诵

在中学英语教学中 ,教师范背能给同学们信心 ;课堂试背能给同学们成功的喜悦 ;教授方法能给同学们帮助 。

指导学生背诵的几点做法

关于背诵的重要性，潘菽主编的《教育心理学》如是说：“背诵是熟记材料，提高语文学习质量的重要手段之一。在语文教学中，背诵对于巩固字词，加深理解课文，提高读写能力，促进记忆力的发展，均有积极的独特的作用。”基于上述观点，我在语文教学中非常重视名篇名段的背诵，并已初步形成了一套行之有效的做法。

Application of EBSD technique to ultrafine grained and nanostructured materials processed by severe plastic deformation:Sample preparation, parameters optimization and analysis

With the help of FESEM, high resolution electron backscatter diffraction can investigate the grains/subgrains as small as a few tens of nanometers with a good angular resolution （~0.5°）. Fast development of EBSD speed （up to 1100 patterns per second） contributes that the number of published articles related to EBSD has been increasing sharply year by year. This paper reviews the sample preparation, parameters optimization and analysis of EBSD technique, emphasizing on the investigation of ultrafine grained and nanostructured materials processed by severe plastic deformation （SPD）. Detailed and practical parameters of the electropolishing, silica polishing and ion milling have been summarized. It is shown that ion milling is a real universal and promising polishing method for EBSD preparation of almost all materials. There exists a maximum value of indexed points as a function of step size. The optimum step size depends on the magnification and the board resolution/electronic step size. Grains/subgrains and texture, and grain boundary structure are readily obtained by EBSD. Strain and stored energy may be analyzed by EBSD.

A Comparison of the Biological Characteristics of EV71 C4 Subtypes from Different Epidemic Strains

The comparative analysis of the biological characterization and the genetic background study of EV71 circulating strains is commonly recognized as basic work necessary for development of an effective EV71 vaccine. In this study, we sequenced five EV71 circulating strains, isolated from Fuyang, Hefei, Kunming and Shenzhen city of China and named them FY-23, FY-22, H44, K9 and S1 respectively. The sequence alignment demonstrated their genotypes be C4. The genetic distance of the VP1 gene from these isolates suggested that they were highly co-related with genetic identity similar to other previously reported EV71 strains in China. Additionally, these strains were identified to display some obvious proliferation dynamics and plaque morphology when propagated in Vero cells. However, a distinctive difference in pathogenic ability in neonatal mice was found. Some differences in cross neutralization test & immunogenic analysis were also found. All these results are related to the biological characterization of circulating EV71 strains in China and aid in the development of an EV71 vaccine in the future.

Moving object detection method based on complementary multi resolution background models

A novel moving object detection method was proposed in order to adapt the difficulties caused by intermittent object motion,thermal and dynamic background sequences.Two groups of complementary Gaussian mixture models were used.The ghost and real static object could be classified by comparing the similarity of the edge images further.In each group,the multi resolution Gaussian mixture models were used and dual thresholds were applied in every resolution in order to get a complete object mask without much noise.The computational color model was also used to depress illustration variations and light shadows.The proposed method was verified by the public test sequences provided by the IEEE Change Detection Workshop and compared with three state-of-the-art methods.Experimental results demonstrate that the proposed method is better than others for all of the evaluation parameters in intermittent object motion sequences.Four and two in the seven evaluation parameters are better than the others in thermal and dynamic background sequences,respectively.The proposed method shows a relatively good performance,especially for the intermittent object motion sequences.

Carbide precipitation and microstructure refinement of Cr-Co-Mo-Ni bearing steel during hot deformation

The dynamic recrystallization and carbides precipitation of the Cr-Co-Mo-Ni bearing steel were investigated by hot compression tests performed at temperatures ranging from 850 ℃to 1080 ℃ with strain rate of 1-20 s-1. The activation energy（Q） for the tested steel is calculated to be around 682.99 k J/mol at a deformation strain of 0.6. Microstructural analysis by SEM shows that the dynamic recrystallization（DRX） behavior is dependent sensitively on the deformation strain, temperature and strain rate, while an exponential relationship between DRX grain size and Z parameter is obtained from the computational formula. Moreover, the M6C-type carbides（〈1 μm） act as the main prohibitor of grain coarsening, and the polynomial regression relationship between them is worked out. With electron backscatter diffraction（EBSD） observation, DRX is the main nucleation mechanism responsible for the formation of new grains during hot compression. In conclusion, the interaction between DRX affected by hot deformation parameters and carbides precipitation determines the ultimate grain size refinement.

Community Mediation in Malaysia： A Comparison Between Rukun Tetangga and Community Mediation in Singapore

Malaysia is a multicultural, multireligious, and multiethnic country that is located in Southeast Asia. The social background of Malaysia as a multicultural state calls for the adoption of an alternative method to resolve community dispute which would offer solution and simultaneously promote harmonization in the society. Community mediation may be one of such alternative, if not the best method for interethnic relations. The government of Malaysia has introduced community mediation in Malaysia by providing training for community mediators through a pilot program, known as Rukun Tetangga （Peaceful Neighbor）. The purpose of this program is to promote unity among the multi-races and multiethnic citizens. This paper will refer to the current practice of community mediation in Malaysia as provided by the National Unity Department in Peninsula Malaysia and the practice of community mediation in Singapore. It is hoped that by comparing the practices in both countries, suggestions and recommendations could be made to improve the practice of community mediation in Malaysia.

巧背英语文段

阅读、背诵文段是学习的重要措施与需要,养成背诵的习惯并积累经典句段会达到理想化的学习效果。本文侧重介绍英语文段的背诵方法,但愿这种方法能帮助英语学习者轻松愉快、富有成效学好英语,同时也能惠及其他学科的学习,让更多人体验成功,实现理想。

Effect of stimulating acupoint Guanyuan(CV 4) on lower back pain by burning moxa heat for different time lengths: a randomized controlled clinical trial

OBJECTIVE: To investigate the effect of different heat-stimulating time lengths on lower back pain.METHODS: Forty participants were randomly assigned to four groups of various heating time lengths. The short heating time length group(SL),moderate heating time length group(ML), and long heating time length group(LL) respectively received 15, 30, and 60 min of moxibustion therapy stimulating the acupoint Guanyuan(CV 4). The conventional acupuncture group(CA) received needle acupuncture treatment as a control group. The participants were treated continuously over a 2-week treatment period for a total of 10 sessions, with five sessions given per week. Participants were assessed weekly by blinded assessors, using the visual analogue scale(VAS) and Roland Morris Questionnaire(RMQ).RESULTS: The VAS and RMQ scores reduced in all four groups during treatment. There were significant differences in VAS scores(P < 0.01) and RMQ scores(P < 0.01) between before treatment and after 2 weeks of treatment in the LL group. After treatment, the LL group reported significantly lower VAS scores compared with the CA group, ML group,and SL group(P < 0.05).CONCLUSION: The long and moderate lengths of heat-stimulating time of 30 and 60 min may be more effective for relieving lower back pain than that of short stimulating time lengths.