... to:- Distinguish the clusters /str/, /skr/, and /skw/- Pronoun the words and sentences containing these clusters correctly- Be consolidated relative clauses do exercise correctly- understand ... teachung never lost for teaching Checking Vocabulary : Gap - fill (book open) - Use the gap fill in task 1 (page 138) to check vocabulary - Ask Ss to call out their answers Key: 1- facility ... Teaching aidsTextbook, handouts, cassette ………….III. Anticipated problems Ss may find it difficult to pronounce the three clusters, so T should prepare a lot of practiceIV. Procedure Teacher...