Teach your ELs to read only the highlighted sections. Highlight the key concepts and vocabulary in the text to facilitate your students' ability to focus on the most essential information without being overwhelmed.
You may want to have your more proficient students respond first so that they can model correct English grammar to your less proficient students.
Create word presentations on PowerPoint slides, on Word documents, or on posters to include the word, an image, a concise definition, and a sentence containing the word.