4000 Essential Words contains Level 1 to 6 PDF Books , Audio Files ,Tests and Answer keys.
Level 1 files are for free download. Go to the description part to download.
4000 Essential English Words second edition is a six-book series that is designed to focus on practical high-frequency words to enhance the vocabulary of learners from high beginner to advanced levels. The series presents a variety of words that cover a large percentage of the words that can be found in many spoken or written texts. Thus, after mastering theses target words, learners will be able to fully understand vocabulary items when they encounter them in written and spoken form.
Each unit presents twenty words which are defined and used in sample sentences.
Level 1 is here for free download.