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stronauts do their research? 3) Why can’t they remove their spacesuits ? Summary of the paragraph: ask students to plete the process of spacewalk. Step 3 Vocabulary extension 1. Ask students to focus on Part D and consider the question of what our universe is made up of and then ask students to plete it individually. 2. Ask students to plete a paragraph based on the picture. Answers: 4: the Sun 2: the Milky Way 6: the Moon 5: the Earth Step 4 Homework: 1. Try to remember these new words about space and space exploration. 2. Read more about space exploration after class. 3. Preview Grammar.