【正文】 or their encouragement and support in the course of my thesis writing. Teacher’s Role in Blended Learning CALL My gratitude also goes to Professor Xu Yaqin, my business negotiation teacher, whose lively classroom teaching design initiated my interest in municative language teaching approach. I will always remember Professor Luo Guoliang for his illuminating lectures and loving care for students , Professor Lu Naisheng for his humor and wisdom, Professor Zhu Peifeng, her expertise and unfailing endeavor in helping us to learn more. Chapter One Introduction 5Chapter Two Computer and Language Teaching 7 History and Development of CALL 7 Computer’s Role in Language Teaching 9 Computer as Tutor 9 Computer as Tool 10 Types of CALL Programs 11 Drill and Practice Programs 11 Tutorials 12 12 Games 12 Programs 13Chapter Three Blended Learning 14 What is Blended Learning 14 Technological Methods of Blended Learning 15’s ELearning? 15 Specific Methods for LanguageLearning 16 Nonlanguagelearningspecific methods 18 Summary 21Chapter Four Teacher’s Role in Blended Learning 23 Teacher’s Role in Communicative Language Teaching 23 Teacher as a Resource 24 Teacher as a Controller 24 Teacher as an Organizer 25 Teacher as a Prompter 26 Teacher as an Assessor 26 Complementary Role of CALL in Communicative Classroom Teaching 27 Case Study 29 Program Background: 29 Precourse Preparation 30 Course Design: 33 Test and Feedback 37Chapter Five Courseware Selection 43 Function Requirement in Multimedia CALL 43 Situation Base VS Concept Base 45Chapter Six Conclusion 47Bibliography 49Chapter One Introduction This thesis—teacher’s role in Blended learning—resulted from both the author’s experience with puter assisted language Learning (CALL) and her dissatisfaction with traditional classroom teaching, which is currently seeking breakthrough with the aid of information hitech. However, in such a dynamic society as ours today, your cheese is being stolen long before you aware. You have to move on before it is too late. So the problems confronting our language teachers in this information age include: What does CALL really mean to language teaching? It is a tool or replacement? To make it a tool, how shall the teachers react to bring out the best results? Healey (1998), this 40year period can be divided into three main stages: behaviorist CALL, municative CALL, and integrative CALL. Each stage corresponds to a certain level of technology and certain pedagogical theories. Healey, 1998). To this end the multimedianetworked puter provides a range of informational municative and publishing tools that are potentially available to every student. Computer’s Role in Language TeachingLots of instructive languagelearning software is developed under the similar guidelines. More and more software nowadays has included Artificial Intelligence (AI) in practice such as interactive simulation. In Dynamic English, developed by Dyned International, the program leads the student to different parts of the program according to his/her responses. At the presentation and learning phase, using puter can present new material with text, sound, video and hypertext facilities, referring to enormous data resource (internet, pact disk , and CDROM encyclopedias)，and offering highquality interactive feedback on vocabulary, grammar, language awareness, cultural issue, etc. This type of tool could assist the teacher at the presentation stage to present new material in more motivating ways and the learner to go through the material at his/her own pace and path and thus e to class with previous knowledge on the topic and situation to be dealt with by the teacher. Types of CALL Programs or in textbooks, such as multiplechoice and fillintheblank questions. These exercises, usually limited to single sentences eliciting oneword answers or substitutions, can be based on verb conjugation, on a programmer point, or on vocabulary. The value of drill and practice programs depends on the accuracy and relevance with which vocabulary and structures are used and on the quality of the error analysis in the program. (Robert Ariew and Judith ) Tutorials GamesSince conclusion has been made that CALL is a tool not a replacement, research has been focusing more on the interaction between CALL and traditional teaching. A bination of traditional classroom teaching and puter assisted learning, is often referred to as hybrid learning or blended learning. for others the latter is desirable. Sequencing for efficiency and effectiveness may often produce conflicts. There maybe some pressure to bine all the classroom programs into a single, short, but intensive experience, to reduce travel and downtime but the best learning plans usually call for more distributed classroom experiences so that application, mentoring, online learning, and the integration of new knowledge with what’s already known can take place between events.”(Rosenberg, 2001, p119)‘What’s elearning? It is a new approach of education delivery, including new munication system and interactive work between and among persons. The new munication system means puter network, multimedia, professional website, information search, electronic library, distance learning and online classes, etc’ Language learning courseware means that all the puter programs could be developed for the purpose of assisting language learning. According to the nature of delivery, language learning courseware falls in two major categories: CDROMbased courseware, most of the instructive software products belong to this group and internet –based courseware, which is much less in quantity for the more hardship in development. The former type refers to the programs designed to run on PC terminals, which is always paratively smaller and in forms of