The document is a teacher's guide for third year secondary students covering units on space travel and related topics. It includes exercises on vocabulary, grammar, reading comprehension and translation. The vocabulary exercises include choosing the correct meaning of words and finding mistakes. The grammar exercises focus on verb tenses and articles. The reading comprehension sections contain passages to read and questions to answer. Translation practice involves translating between English and Arabic. The guide aims to help students improve their language skills while learning about space.