1。1 Background

With the coming of information age and economic globalization, the importance of English has become more and more prominent。 As one of the most important information carriers in the world, English has become the most widely used language in human life。 In the development plan of basic education, many countries put English education as an important part of the quality education of citizens。

Praise is an important part of assessment。 Basic Education Curriculum Reform Program(Trail) pointed out :assessment should pay attention not only to the students' academic achievements, but also to discover and develop the students' potential ability, give full play to the assessment of education and incentive function, and promote the development of students in the original level。 As a medium of interaction between teachers and students, teaching assessment not only has a direct impact on the behavior of teachers’ and students’, but also plays a huge role in the growth of students。 文献综述

1。2 Key term

 a。 Praise

In the Oxford Advanced Learner’s English-Chinese Dictionary, “praise” refers to “words that show approval of or admiration for somebody or something” (A。S。Hornby, 2014)。 In the The semantics of praise, praise refers to positive evaluations made by a person of someone’s products, performances, or attributes, where the valuer presumes the validity of the standards on which the evaluation is based (Kanous。D。E。, Gumpert, P。 & Canavan-Gumpert, D。 , 1981, 3: 97–115)。

1。3 Significance

a。 Theoretical significance

First of all, on the basis of summarizing and analyzing the domestic and foreign  studies on the praise, this study gives a clear definition of the praise。 Second, from the six dimensions of frequency, ways, content, object, authenticity, effect, this thesis explores the theoretical basis for the praise and sum up the strategies so that enhance the scientific understanding of praise and improve the using effect。

b。 Practical significance

By the methods of questionnaire, classroom observation and interview, this      research explores the using situation of praise in primary English teaching, and finds out the problems, then analyses the reasons of problems and sums up the strategies and advice so as to perfect the practical use of praise and promote the function of praise。

1。4 Structure of the thesis

There are five parts in the thesis。 The first part is the introduction, including the background of this thesis, its key terms and significance。 The second part is the studies at home and abroad。 The third part is the methods adopted in the research of praise, including questionnaire, interview and classroom observation。 The forth part is the results and analysis, including results, problems and reason analysis, strategies on the use of praise in primary school English teaching。 The last part is the conclusion。

Chapter Two Literature Review

2。1 Speech Act Theory

Speech Act Theory is the theoretical basis of this research。 Speech Act Theory is an important theory in the pragmatic study of language。 It was originated with the British philosopher John Austin in the late 50’s of the 20th century。 According to Speech Act Theory, we are performing actions when we are speaking。 A speaker might be performing three acts simultaneously when speaking: locutionary act, illocutionary act and perlocutionary act。 A locutionary act is the act of uttering words, phrases, clauses。 It is the act of conveying literal meaning by means of syntax lexicon and phonology。 An illocutionary act is the act of expressing the speaker’s intention; it is the act performed in saying something。 A perlocutionary act is the act performed by or resulting from saying something; it is the consequence of, or the change brought about the utterance; it is the act performed by saying something。