Ⅳ. 阅读短文，参考示例完成思维导图。
Hello! I'm John. I have a happy family. Everyone has a job at home. Look! My father is washing clothes in the bathroom. My grandmother is cooking in the kitchen. And my grandfather is sweeping the floor in the living room. Where is my mother? Oh, she is looking after my baby sister in the bedroom. Where is my brother Jack? Is he in the study? Yes, he is doing his homework there.