<p>p54 Life and the universe: gravity, planet, star, etc.&nbsp;</p><p>Pronunciation: The letters ea</p>

<p>p53 Gerunds and infinitives</p>

<p>p52 A text&nbsp;</p><p>Vocabulary plus: Noun suffixes: -or, -er, -ion, -ment</p>

<p>p50-51 Discovery and invention: nouns and verbs: discover, discovery, imagine, imagination, etc.<br>Key phrases: Talking about discoveries and inventions</p>

<p>p49 Review 2 - 4</p>

<p>p48 Review 2 - 3</p>

<p>p47 Review 2 - 2</p>

<p>p46 Review 2 - 1</p>

<p>p45 A post on an advice forum<br>Key phrases: Conversational phrases&nbsp;</p><p>Language point: Conversational tone</p>