Unit 3 - Lesson 2

A hand is a remarkable and versatile part of the human body, located at the end of the arm. It consists of the wrist, palm, fingers, and thumb, all working together in perfect harmony to perform a wide range of intricate tasks. The hand is a remarkable tool for grasping, manipulating objects, and engaging in various activities requiring fine motor skills. Its complex structure, composed of bones, muscles, tendons, and ligaments, allows for precise movements and dexterity. The hand not only aids in physical tasks but also plays a significant role in communication and expression through gestures. It is an invaluable asset that empowers us to interact with the world around us and accomplish countless daily activities with skill and precision.

The idiom "have butterflies in one's stomach" is believed to have originated from the physical sensations that people experience when they are anxious or nervous. The fluttering feeling in the stomach, similar to the fluttering of butterfly wings, is commonly associated with heightened emotions and anticipation. This phrase is used to convey a sense of nervous anticipation, acknowledging the emotional and physical reactions that can accompany important events or situations.