填空题 Read the passage and fill in each blank with one word. Choose the word in one of the following three ways: according to the context, by using the correct form of the given word, or by using some given letters of the word. Remember to write the answers on the answer sheet.
Water for Life

Water is essential for life. Yet many millions of people around the world face a water {{U}} {{U}} 1 {{/U}} {{/U}}(short). Many millions of children die every year from water-borne di{{U}} {{U}} 2 {{/U}} {{/U}}and drought regularly afflicts some of the world's poorest countries. The world needs to respond. {{U}} {{U}} 3 {{/U}} {{/U}}more effectively.