Think about the Nile River
What is an ecosystem
Look at the words in bold in the text. Match them to their meanings
Are the things in Exercise 4 living or non-living? Write the words in the correct group
Look and write
Language focus
Look, read, and write. Use the correct form of the verbs in the box ask check cook cut elrive open
Complete the sentences with the correct form of the verbs in the present simple
8 Read. What is Walid's job?
Language focus We use must when we talk about something that we have to do
Complete the sentences with must or mustn't I do my English homework
Write two things you must do and two things you mustn't do to help at home