The document contains a unit review with vocabulary about weather, clothing, forecasts, and sample sentences with grammar errors. The sentences practice rewriting sentences with incorrect verb tenses or subjects/objects to have the correct grammar. Some examples corrected include changing "They is going..." to "They are going...", and "It are going to be rain..." to "It is going to be rainy...". The review covers verbs like "go", "be", "have", and grammar points like simple future tense.