The textbook intended for students studying under the educational program of the "Environment" direction, for in-depth study of certain sections of the discipline "Professionally-oriented foreign language". A modern specialist should be able to speak everyday speech and the business language of the specialty for active use, both in everyday life and in professional activities. The textbook aims to include new vocabulary in the students ' existing vocabulary, to teach students semantic text processing and information retrieval. Topics for statements and discussions on various issues are also formulated, and many communicative situations are proposed in the context of real professional communication. The textbook provides an opportunity to teach students to read scientific and popular scientific texts in their specialty, to develop oral speech skills. The textbook is recommended for students studying in higher educational institutions, as well as for anyone who studies the basics of natural science.