摘要：The Loons is one of the famous short stories of Canadian female writer Margaret Lawrence. In this story, the authorportrays an Indian woman—Piquette, who is a tragic figure and lives as a marginalized group. This article willanalyze Piquette in The Loons from the perspective of Spivak’s Post-colonialism, revealing the fate of colonialwomen under the imperialist and patriarchal discourse and deepen the reader’s understanding of this work.

摘要：Lord of the Flies is the masterpiece of British writer William Golding who won the Nobel Prize for Literature. Thiswork takes children as the protagonists and shows the theme of the barbarism of human nature. Based on Freud’sTripartite Model of Human Psyche, this study analyzes the personality characteristics of Jack in psychologicalperspective, reveals the different states reflected in the realm of in id, ego and superego, and thus stresses therestraining effect of social rules and civilization on the barbarism of human nature.

摘要：The Garden Party is one of the major short fictions of famous female writer Katherine Mansfield. In this work,the writer makes a profound reflection on the inequality in differentsocial classes and the truth of life. This paperwill focus on the research method of binary opposition. Through the study of binary oppositions in the text, thedeep themes and meanings will be clearly revealed.

摘要：The professionalization of translation has been discussed by many scholars in recent years,which has inspired the intense discussion of translation *** upon Chesterman’s models on translation ethics,this paper intends to examine the ethical problems in MTI students’escort interpreting for Vanuatu Sport Technical Assistance Project for the Pacific Mini Games in 2017 and China-ASEAN International Capacity Cooperation Forum in *** data was collected by the methods of participant observation and informal interviews in the process of the two interpreting projects,especially the six-month assistance *** ethical problems in the escort interpreting and the reasons that caused the problems were analyzed through case *** is found that the major ethical problems that occurred are related to the ethics of communication,the norm-based ethics,and the ethics of *** ethical problems were mainly related to the student escort interpreters’language proficiency,professional qualities,and intercultural/interpersonal communication *** solutions are suggested based on Chesterman’s models on translation *** is hoped that the research findings can provide some references to the implementation of the similar interpreting programs in the future,and enhance interpreting teaching and training programs.

摘要：In order to improve the pectin-degrading efficiency in wet processing of Arabica coffee in yunnan, Box-Behnken design and single factor experiment were used to optimize the fermentation conditions of five pectinolytic Wickerhamomyces anomalus strains from the fermentation broth of Arabica coffee in Baoshan, yunnan during wet processing with pectase activity as an indicator. The results showed that the five strains all synthesized pectin lyase(PL), polygalacturonase(PG), and pectin methylesterase(PM).Among them, strain CAP5 had strong ability to produce PG and PL,while strain CAP4 secreted a large amount of PM. Under optimized conditions, the activity of PG, PL, and PM of the five strains came in at 250.17~411.20 U/mL, 12.98~16.55 U/mL, and 208.52~322.83 U/mL,respectively. The four factors of nitrogen source concentration,fermentation time, Mn2+ concentration, and pH value were optimized and the optimal pectinase-producing fermentation conditions for five strains were as follows: peptone 2.2 g/L, fermentation time 30 h, Mn2+ 1.5 mmol/L, and pH 4.3. After fermentation under the optimized conditions, the maximum PG activity of CAP5 amounted to 411.20 U/mL, 114.03% higher than that before ***, the PG activity of strains CAP3, CAP4, CAP8, and CAP10 increased by 86.74%, 114.55%, 65.79%, and 66.07%,respectively, and the activity of PL and PM of the five strains rose 150.35%~218.56% and 341.07%~418.52%, respectively. These findings suggested that W. anomalus strains could be used as coffee starter and had great potential for the lysis of pectin.