English materials for
​Secondary school in México

First Grade

Unit 9

Introduction

A language is a system of communication that uses signals, voice sounds, gestures and written symbols. Today, there are 7,102 languages. 
​
The top 5 most spoken languages in the world

1. Mandarin Chinese (1.1 billion speakers)
2. English (983 million speakers)
3. Hindustani (544 million speakers)
4. Spanish (527 million speakers)
5. Arabic (422 million speakers)

Lesson plan	Worksheets & Handouts	PowerPoint presentations
Exercises for students	Project Ideas	Pop Quizzes & Exams