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I. AIMS By the end of the lesson, students will be able to use “should” and “shouldn’t” for giving advice about protecting the enviroment. Teaching aids: textbook, pictures Anticipated problems. B2 (P170-171) II. CONTENT 1. Revision: Noughts and crosses | UNIT 16 . MAN AND THE ENVIROMENT Lesson 5 B2 P170-171 I. AIMS By the end of the lesson students will be able to use should and shouldn t for giving advice about protecting the enviroment. - Teaching aids textbook pictures - Anticipated problems. II. CONTENT 1. Revision Noughts and crosses Teacher elicits the verbs destroy Waste polute produce Example S1 Don t proceduce trash Plants Water The air Power Wild animals The oceans Forests Coal trash 2. Presentation B2 P170-171 Matching Students read the sentences a h and match the sentences with the pictures Key a Picture c b Picture f c Picture a d Picture h e Picture e f Picture b g Picture g h Picture d Guess from the context Students work out the meaning of the new verbs from the pictures and fill in the Vietnamese meanings to throw nộm vất to pick hỏi ngắt to damage làm hỏng to keep off trỏnh khỏi to save tiết kiệm to collect thu nhặt Model sentences We should collect paper save water we shouldn t throw trash on the street damage trees Concept check Teacher asks - When we want to give advice about something what word do we use should shouldn t - What comes after should shouldn t Vbare Who can give the form