Preface Developing English Competencies for Grade XII of Natural and Social Science Programmes is designed to facilitate you, students of senior high school (SMA/MA), to communicate in English according to the context of the language use. Developing English Competencies for Grade XII of Natural and Social Science Programmes enables you to access information of various fields of science to prepare you to go to university. English learning in Developing English Competencies for Grade XII of Natural and Social Science Programmes is based on literacy based approach so you can get many learning experiences by considering the aspects of interpretation, convention, collaboration, cultural knowledge, problem solving, reflection and language use. In Developing English Competencies for Grade XII of Natural and Social Science Programmes, there are many activities available for you to do individually or with other students. These activities explore your creativity. You are expected to be skillful in doing the exercises, acting out dialogues, constructing sentences or texts and the other activities that facilitate you to be skillful in using English in communication. Last but not least, the writers are very grateful to all people who have helped and given their input, support and encouragement. We would like to thank PT Setia Purna Inves, especially the editors and team, for facilitating us to publish our work. Hopefully, this book will help you learn English in a communicative way. Bandung, July 2008
Writers
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