全文获取类型
收费全文 | 4645篇 |
免费 | 47篇 |
国内免费 | 3篇 |
专业分类
教育 | 3374篇 |
科学研究 | 406篇 |
各国文化 | 91篇 |
体育 | 247篇 |
综合类 | 2篇 |
文化理论 | 50篇 |
信息传播 | 525篇 |
出版年
2021年 | 31篇 |
2020年 | 45篇 |
2019年 | 82篇 |
2018年 | 110篇 |
2017年 | 111篇 |
2016年 | 107篇 |
2015年 | 71篇 |
2014年 | 95篇 |
2013年 | 1247篇 |
2012年 | 84篇 |
2011年 | 89篇 |
2010年 | 67篇 |
2009年 | 92篇 |
2008年 | 88篇 |
2007年 | 73篇 |
2006年 | 90篇 |
2005年 | 63篇 |
2004年 | 81篇 |
2003年 | 70篇 |
2002年 | 68篇 |
2001年 | 69篇 |
2000年 | 77篇 |
1999年 | 64篇 |
1998年 | 63篇 |
1997年 | 56篇 |
1996年 | 63篇 |
1995年 | 66篇 |
1994年 | 64篇 |
1993年 | 66篇 |
1992年 | 75篇 |
1991年 | 58篇 |
1990年 | 49篇 |
1989年 | 44篇 |
1988年 | 59篇 |
1987年 | 53篇 |
1986年 | 49篇 |
1985年 | 60篇 |
1984年 | 43篇 |
1983年 | 34篇 |
1982年 | 63篇 |
1981年 | 32篇 |
1980年 | 42篇 |
1979年 | 40篇 |
1978年 | 32篇 |
1977年 | 29篇 |
1976年 | 45篇 |
1975年 | 34篇 |
1974年 | 27篇 |
1973年 | 21篇 |
1970年 | 19篇 |
排序方式: 共有4695条查询结果,搜索用时 31 毫秒
101.
102.
Foster , John , L. (Editor ). (1977). Reluctant to Read? Edinburgh Reading Tests - Stages 1 and 4 - Godfrey Thomson Unit. Dubin , F. and Olshtain , E. (1977). Facilitating Language Learning. Skitt , Frank . (1978). Themes for Language Learning. 相似文献
103.
The aim of this study was to investigate young children's conflict emotions during peer disputes. Twenty-seven 4- to 5-year-old children participated in four 15- minute sessions in which groups of 3 children played with table toys. Videotapes of these sessions were used to identify all conflicts and conflict roles (initiator, recipient, and observer) and all conflict-related displays of facial emotions (using the AFFEX coding system). Results indicated that initiators', recipients' and observers' emotions differed in the conflict and postconflict periods, but that there were no initial preconflict differences. Overall, conflict initiators almost exclusively expressed happiness, whereas conflict recipients expressed mostly sadness and anger. In addition, children's conflict emotions were related to the frequency with which they initiated and received conflicts. Children who expressed higher percentages of negative emotions as conflict recipients both initiated and received more conflicts, and children who expressed more happiness when initiating conflicts also initiated more conflicts. These findings have implications for how young children develop methods of conflict resolution, and how they form concepts about sociomoral emotions. 相似文献
104.
D. R. E. Cotton J. Winter W. Miller L. Dalla Valle 《Environmental Education Research》2018,24(11):1611-1626
AbstractUniversity rankings are increasingly important internationally, and in the UK include a sustainability ‘Green League’. However, there is little evidence about experiences of studying in ‘sustainable universities’. We report an empirical study at five universities in varied positions in the Green League, exploring students’ energy literacy, environmental attitudes and perceptions of their institution’s energy-saving efforts. Although the link to energy literacy is not clear, findings suggest that there are significant differences between students’ environmental attitudes at universities placed at different points in the league. In addition, students at higher ranked universities are more positive about their university’s energy-saving efforts, suggesting that these institutions may exhibit more overt manifestations of sustainability. This is important since students report being more likely to choose energy-conservation behaviours if there is visible representation of energy use. The study is the first to attempt a comparison between universities at different positions in a sustainability ranking. 相似文献
105.
This study assessed the effects of text topicalization conditions (initial position, final position, or no topic sentence) on the comprehension of main ideas and specific passage information for middle school readers. Also of interest were interactions of topic familiarity and readers’ cognitive styles (degree of field independence) with text topicalization. One hundred and seven subjects were randomly assigned to one of the three topicalization conditions and read three familiar and three less‐familiar multipleparagraph expository texts. Main idea comprehension was assessed with both a sentencesummary (generation) and best‐title (recognition) task. Comprehension of specific passage information was evaluated with multiple‐choice items. Text topicalization effects were observed for main idea comprehension (with initial position best, followed by final position), while topic familiarity resulted in higher comprehension scores for specific passage information. Moreover, a cognitive style‐text topicalization interaction was found on the best‐title task; in this case, relatively field dependent readers were assisted by a final topic sentence placement. Implications are drawn for future research concerning the complex interplay of texts, tasks and readers in prose‐processing. 相似文献
106.
107.
108.
Catholic schools have become a popular choice for many low income families Latino/a families. Families enrollment in these schools are often faced with the mandate to participate. However, regardless of the mandate, some schools often experience low parental participation. The purpose of this study is to document the experiences of low income, Latino/a families around parental involvement in hopes of understanding the reasoning for participating (or not) in their child’s school. The researchers conclude that families do not participate for a number of reasons including lack of opportunities, and an unwelcoming environment. The implications for Latina/o urban education are discussed. 相似文献
109.
Noam Miller 《Learning & behavior》2018,46(1):5-6
Sasaki and Biro (2017, Nature Communications, 8, 15049) show that pairs of pigeons can increase the efficiency of their homing routes over several ‘generations’ in which pair members are gradually replaced by naïve birds. Their findings show that socially transmitted cumulative alterations of behavior are not unique to humans and suggest a way to examine potential mechanisms of cultural evolution. 相似文献
110.
In seven experiments, 2 squirrel monkeys were given choices between arrays of food that varied in the quantity offered. In Experiments 1-5, the monkeys were offered choices between quantities of the same food that varied in a 2:1 ratio. The squirrel monkeys failed to show the temporal myopia effect or a decrease in preference for the larger quantity as the absolute number of food items offered increased. Even when given choices of 8 versus 16 peanuts and 10 versus 20 peanuts, both monkeys significantly preferred the larger quantity. An examination of the monkeys' rates of consumption indicated that 20 peanuts were consumed over a 1- to 2-h period, with eating bouts separated by periods of nonconsumption. In Experiments 6A, 6B, and 7, food was either pilfered or replenished 15 min after an initial choice, so that choice of the smaller quantity led to more total food in the long run. These manipulations caused both monkeys to reduce choice of the larger quantity, relative to baseline choice. The results suggest that squirrel monkeys anticipated the future consequences of their choices. 相似文献