This article reveals the essence of teaching the disciplines of the natural science cycle in English in high school. When preparing for the lesson, there is a need for careful selection of educational material, the teacher thinks out a specific algorithm for working with the text in a foreign language using subject terminology, while not forgetting the basic grammatical and syntactic models characteristic of the English language. In such a language environment, foreign speakers actively acquire solid knowledge, eliminating language difficulties in professionally-oriented lessons. Given this problem, we decided to create a methodological guide for teachers, which will contain tasks for formative assessment in physics lessons in English. Its lexical and grammatical material meets the requirements for mastering the English language (B1) in educational and cognitive activities. The presented progress tests also meet all the requirements of the corresponding stage of training of non-native speakers and help to consolidate the skills of professionally oriented communication. The purpose is to reveal some principles that should be taken into account when preparing assignments for physics lessons in English, as well as to provide a methodological guide for teachers. This article shows several principles that are most effective when conducting lessons. All the data of the article was confirmed by a computer survey of students, the answers were analyzed and collected for publication. Given the results we have presented, secondary school teachers can improve the quality of the material provided, as well as spend less time preparing for lessons. Physics is one of the fundamental sciences that can combine both the subject content and the language component. Here we present various methods of subject-language integration to improve communication skills. Thus, the preparation and conduct of physics lessons in English requires a strict and careful selection of educational material and takes into account the educational profile of secondary school students.