42 research outputs found
A Corpus Study of Verb-Noun Lexical Collocations in Senior High School English Textbooks in Taiwan
[[abstract]]多位學者認為,習得英語字詞搭配是外語學習者使自己在英語聽說讀寫上更加流暢的關鍵之一。對台灣學生而言,如何正確使用英語詞彙字詞搭配(lexical collocation)中之動詞-名詞詞彙字詞搭配(verb-noun lexical collocation)的能力較弱。以台灣學生而論,除了與教師有英語互動之外,其他大部分與英語接觸的機會則是透過教科書,因此課本內容則相對重要並值得研究。故本研究主要是討論最多學校使用之三系列高中英語教科書(分別為遠東、龍騰以及三民陳版)中的「動詞-名詞詞彙字詞搭配」之呈現狀況。 研究者依序以BBI英語搭配詞典、牛津英語搭配詞典以及二位英語母語人士作為依據,確認每單元課文中找到的可能「動詞-名詞詞彙字詞搭配」,確認後的字詞搭配則做為本研究三項探討議題之分析:(1)動詞-名詞字詞搭配於三系列教科書的數量;(2)動詞-名詞字詞搭配分別於三系列嬝直狺憭仇Q特殊標明的方式與其百分比;以及(3)動詞-名詞字詞搭配出現於各該系列教科書的次數。本研究的主要發現如下: 1 雖然動詞-名詞字詞搭配於三系列高中英語教科書(遠東、龍騰以及三民陳版)中的數量均不同(各系列共有:391、372、428個;每冊平均:65、62、71個;每課平均:5 4、5 5、5 9個),但是,多變量變異數分析(ANOVA)結果顯示,此等數量上之差異並未達顯著水準(p > 05)。 2 三系列高中英語教科書分別採用不同的方式,於閱讀課文中標明動詞- 名詞字詞搭配:遠東輪流使用五種不同顏色,龍騰使用粗體字,三民陳版則統一使用紫色。然而,在所有的動詞-名詞字詞搭配當中,只有極少部分(4 6%、7 2%、5 6%)是整個字詞搭配被特殊標明於課文中。 3 各系列高中英語教科書中,平均同一個動詞-名詞字詞搭配出現於某一個單元約二次(一次在課文中,另一次在非課文中),出現於某一冊約三次,而出現於全系列共六冊約五次,且依據個別字詞搭配出現於各系列之總次數排序發現,絕大多數(約79%)的動詞-名詞字詞搭配僅出現一至五次,少部分(21%)出現六次(含)以上。 本研究結果顯示,字詞搭配並非台灣高中英語教科書著墨之重點,因此,我們建議出版商應重新評估如何將字詞搭配呈現於教科書中。除了可以藉由於課文中標明更多字詞搭配以提升學生對字詞搭配的注意力,亦可增加每個字詞搭配的出現次數至適當數量,以便確保學生習得個別字詞搭配。再者,所有台灣高中教科書出版商皆須依據教育部公佈之高中課程標準編撰課本內容,我們亦建議教育部可詳細說明字詞搭配之呈現方式,以便編撰者遵循。最後,以現階段言之,為促進學生語言流暢度,教師應將字詞搭配納入課堂教學,以彌補教科書中少量字詞搭配被明顯標示於課文中以及多數字詞搭配出現次數不足之情形。[[abstract]]Many scholars consider collocation acquisition as one of the keys for EFL learners to achieve fluency in language comprehension and production Among lexical collocations verb-noun combinations have been found to be one of the most difficult kinds for EFL learners in Taiwan Owing to the great amount of time spent on interaction between learners and textbooks examining collocations in EFL textbooks is deemed a worthwhile research topic Therefore the present study investigated verb-noun collocations found in the three most popular series of English textbooks for senior high schools in Taiwan (Far East Lung Teng and San Min-Chen) The BBI Dictionary of English Word Combinations the Oxford Collocations Dictionary for Students of English and two English native speakers served as authorities to confirm the collocation status of verb-noun combinations found in the reading texts for each lesson These collocations were further analyzed to determine: First the total number of different collocations found in the readings Second the ways the collocations were highlighted as well as the amount of collocations highlighted in the reading texts Finally the collocations occurring in each series were first identified by searching the textbook corpora using a proprietary computer-based program Then the number of times each collocation was recycled throughout the whole series was calculated The major findings of the study are summarized as follows: 1 The three series of textbooks (Far East Lung Teng and San Min-Chen) had different quantities of verb-noun lexical collocations (391 372 and 428 respectively per series; 65 62 and 71 per volume; and 5 4 5 5 and 5 9 per lesson) appearing in their reading texts However a one-way ANOVA test showed that there was no significant difference (p > 05) in the number of collocations among the three publishers 2 The three publishers took different approaches to highlighting whole collocations in the readings: Far East used five different colors alternatively from lesson to lesson (i e one color in a lesson) Lung Teng boldfaced them and San Min-Chen colored them all purple As for the amount of verb-noun lexical collocations highlighted as a unit all three series had a low percentage (4 6% 7 2% and 5 6% respectively) 3 Each collocation in all three series on average occurred about twice per lesson including once each in the reading and the non-reading texts less than three times per volume and less than five times throughout the whole series Moreover the analysis of the frequency ranges showed that less than 21% of the collocations occur six or more times and around 79% of them appear from one to five times in a whole series Based on these findings of the present study we conclude that collocations appear to receive little explicit attention in the textbooks It is suggested that textbook writers may need to re-evaluate their treatment of collocations to highlight more collocations in the readings to promote students’ awareness of them and repeat collocations more often in each volume and throughout a series to have adequate exposures to ensure acquisition Because textbook writers are required to follow the Curriculum Guidelines for Senior High School provided by the Ministry of Education in Taiwan detailed criteria in these guidelines for treating collocations in textbooks may be necessary Finally it is recommended that EFL teachers provide explicit instruction to make up for the limited number of exposures to collocations and to assist learners in noticing collocations not highlighted in textbooks thus helping them improve their language fluenc
THE MECHANISM OF THREE-DIMENSION STEADY SHOCK WAVE INTERACTION
The problem of three-dimensional steady shock wave interaction is a key issue for supersonic and hypersonic corner flow. Due to the complexity of shock configurations, there is no analytical theory to such problem and the mechanism of three-dimensional shock waves and boundary layer interaction has not been clearly known. In this paper, an analytical approach to the problem of three-dimensional steady shock wave interaction was exhibited to analytically interpret the mechanism of three-dimensional interaction of two oblique planar shock waves. The results showed that the problem of three-dimensional steady shock wave interaction could be transformed to that of two moving shock wave interaction in two-dimensional plane, and there are various interaction configurations such as regular interaction, Mach interaction and weak interaction. The mechanism of three-dimensional shock wave interaction is helpful to understand the complex flow mechanism induced by three-dimensional shock wave and boundary layer in hypersonic flow. The interaction of three-dimensional shock waves and boundary layer plays important role in the complex flow feature in hypersonic rudder region. The contact surface induced by three-dimensional shock waves represents a local jet. When the flow jet impinges on the boundary layer of wall surface, the jet makes the boundary layer thinner and will inevitably cause local heat flux peak. The interaction configurations of three-dimensional shock wave play important role in the gasdynamic heating mechanisms of hypersonic complex flow
Factors affect beliefs of insomnia patients with CBT一I
目的:探讨失眠的认知行为疗法在矫正失眠患者认知过程中的影响因素。方法:2016年3-9月在广安门医院心理科门诊就诊的70例慢性失眠患者,记录患者的一般资料情况(年龄、性别、病程、有无抽烟喝酒、家族史、受教育程度、就业情况、婚姻状况及有无躯体疾病)。于治疗前、治疗第4周、治疗结束(治疗第8周)时,记录各组的失眠严重程度指数(ISI)、睡眠个人信念和态度量表(DBAS)、贝克抑郁量表(BDI)和贝克焦虑量表(BAI)各因子,并分析比较患者的一般资料与DBAS量表是否相关、患者不同时间的量表得分情况。结果:(1)治疗结束时,ISI、DBAS较治疗前总分显著下降(F=157.796,86.951;P<0.001);(2)经过8周治疗之后,患者部分一般资料(年龄、受教育程度、是否抽烟以及患病时长)与DBAS总分差异有统计学意义(P<0.05);(3)患者在治疗结束时,失眠严重程度指数(ISI)、贝克抑郁量表(BDI)和贝克焦虑量表(BAI)各因子(ISI、BAI及BDI)与DBAS总分呈负相关,相关性有统计学意义(P<0.05)。结论:CBT-I治疗对于失眠患者的认知偏差改善疗效显著;另外,患者的情绪变化、部分社会特征在CBT-I治疗中,对认知偏差改善具有潜在影响。</p
机器人用RV减速器综合性能试验台技术研究与开发
针对RV减速器的各种性能及精度的试验检测,研制了RV减速器综合性能试验台,可完成传动精度、扭转刚度、背隙、启动停止转矩及空载摩擦转矩等项目测试。试验台基于光、机、电等先进测量技术,提出了光栅高频细分、精密装配和误差补偿等专有技术,实现了高达1″的高精度测量和多性能综合测量,并实现了系列化。通过用户使用验证,完全满足工程试验测试需求
中国心理学会会议论文集
注意偏向是指在相对于中性刺激的条件下,个体对威胁性、特定事件相关的刺激或感觉输入表现出优先性的注意分配现象。通常情况下,注意偏向会导致个体对外界信息获取不完整,从而出现信息记忆不完全,容易出现错误的判断。虽然一些研究已经表明创伤后应激障碍患者表现出明显的注意偏向,但是对于PTSD患者注意偏向的本质还不清楚。本研究采用点探测范式,利用眼动追踪技术,探讨了震后PTSD青少年对情绪图片注意偏向的时间进程 </p
PTSD青少年执行功能缺陷的情绪特异性
已有研究表明PTSD青少年存在执行功能缺陷,但尚不清楚这种缺陷是否具有情绪特异性。以2008年汶川地震重灾区汉旺中学PTSD、非PTSD以及非灾区青少年各28名为被试,探讨震后PTSD青少年执行功能缺陷是否具有情绪特异性。实验1采用经典Stroop范式,结果发现3组被试的Stroop效应量无显著差异;实验2采用情绪Stroop范式,结果发现PTSD组对地震信息的Stroop效应量显著大于非PTSD组和控制组。整个研究表明,震后PTSD青少年的执行功能缺陷具有情绪特异性
The emotional specificity of executive function defects of earthquake PTSD teenagers
已有研究表明PTSD青少年存在执行功能缺陷,但尚不清楚这种缺陷是否具有情绪特异性。以2008年汶川地震重灾区汉旺中学PTSD、非PTSD以及非灾区青少年各28名为被试,探讨震后PTSD青少年执行功能缺陷是否具有情绪特异性。实验1采用经典Stroop范式,结果发现3组被试的Stroop效应量无显著差异;实验2采用情绪Stroop范式,结果发现PTSD组对地震信息的Stroop效应量显著大于非PTSD组和控制组。整个研究表明,震后PTSD青少年的执行功能缺陷具有情绪特异性。</p
耐高温防护涂层及其制备方法与应用
本发明公开了一种耐高温防护涂层及其制备方法与应用。所述耐高温防护涂层包括TiN过渡层以及形成于TiN过渡层上的AlTiN涂层;并且在所述AlTiN涂层中,0.67<Al原子数量-(Ti原子数量+Al原子数量)<0.9。所述制备方法包括:靶材选用Ti靶,工作气氛为N2,采用电弧离子镀技术在基体表面沉积TiN过渡层;同时以Al靶和Al67Ti33靶为靶材,采用电弧离子镀技术在TiN过渡层上继续沉积AlTiN涂层。本发明中AlTiN涂层铝含量高且Al-Ti比例可调,抗氧化温度可达到900℃,具有优良的耐高温氧化性能及防腐蚀性能,从而有效提高了AlTiN涂层与高速切削刀具及钛合金零部件的综合性能及使用寿命
