Unit 1 Great scientistsTeaching aims1. To help students learn to describe people2. To help students learn to read a narration about John Snow3. To help students better understand “Great scientists”4. To help students learn to use some important words and expressions5. To help students identify examples of “The Past Participle (1) as the Predicative & the attribute”Period 1 Warming up and readingTeaching ProceduresI. Warming up Step I Lead inTalk about scientist.T: Hi,