This PowerPoint shows pictures made by people in the early 1950s and 1940s portraying how they thought the future might be. It's good to practice "They thought that we would be able to fly one day." People at the time thought that people in the twentieth would be able to walk over water and accomplish many incredible feats. Students can observe the pictures and discuss historical discoveries and predict future innovations. They can also practice the Future Simple, Past Simple tenses.