1.a. Look at the pictures and discuss the questions. 2. Find words in the text that have similar meanings to these words or phrases. 3. Match the headings with the paragraphs (1-3). There is one extra. 4. Read the text again and answer the questions. 5. Work in pairs. One is a human and the other is a Martian. Use the suggestions below to ask and answer about life on Earth and life on Mars.