## Introduction

In this next section you are going to watch a video about expiry and best by dates and read an article entitled 'Feed the world'. It is an opinion article in which the author sets out some ideas for the problem that we will face in 2050:
how to feed 9 billion people?

This second section contains 4 steps. Work them through step by step.

Step | Activity |
|  | Introduction | Find out what you already know.
Step 1 |  | Speaking and watching | Answer questions with your classmate. Watch a video about 'Food past its 'best before' date'. Answer questions about the video.
Step 2 |  | Reading | Answer a question about different farming methods. Read the article 'How to Feed the World'. Answer questions in your own words.
Step 3 |  | Words | Unjumble phrases. Complete sentences, tick the correct words and complete a text.
Step 4 |  | Task | Write a summary in about 180-200 words. Tips are given.
|  | Evaluation | Reflecting on what you have learned.

| Difficult words? Search these on Cambridge Dictionaries