... Learning vocabulary is the important basis to gain all other skills. Vocabulary deficiency leads to poor reading comprehension, poor listening comprehension, poor writing performance, poor ... Unit 7) which is an integrated course book intended to develop four basic language skills: listening, speaking, reading, writing and especially learning vocabulary according to topics (For example, ... language learner capable of using a wide variety of LLS appropriately can improve his language skills in a better way. According to Oxford (1990), memory strategies “help students store ...