Choose the word which has a different stress pattern from the others. 1. A. pollution B. protection C. interest D. announcement 2. A. destroy B. contain C. detail D. reduce 3. A. backpack B. centre C....

1. Analyze: 'pollution' stressed at second syllable 'protection' stressed at second syllable 'interest' stressed at first syllable 'announcement' stressed at second syllable Therefore, 'interest' has a different stress position to other words. Answer: C. interest 2. Analyze: 'destroy' stressed at second syllable 'contain' stressed at second syllable 'detail' stressed at second syllable 'reduce' stressed at second syllable All of the given words have the same stress position at the second syllable. However, based on the given options, we need to select the best answer. Since there is no clear distinction, the best answer can be 'contain', 'detail', or 'reduce'. However, for the sake of answering, we can choose any of these options. Answer: B. contain 3. Analyze: 'backpack' stressed at first syllable 'centre' stressed at first syllable 'avoid' stressed at second syllable 'reason' stressed at first syllable Therefore, 'avoid' has a different stress position to other words. Answer: C. avoid 4. Analyze: 'decorate' stressed at first syllable 'volunteer' stressed at third syllable 'customer' stressed at first syllable 'exercise' stressed at first syllable Therefore, 'volunteer' has a different stress position to other words. Answer: B. volunteer 5. Analyze: 'pollution' stressed at second syllable 'convenient' stressed at second syllable 'affection' stressed at second syllable 'factory' stressed at first syllable Therefore, 'factory' has a different stress position to other words. Answer: D. factory 6. Analyze: 'whistle' stressed at first syllable 'victim' stressed at first syllable 'authority' stressed at second syllable 'violent' stressed at first syllable Therefore, 'authority' has a different stress position to other words. Answer: C. authority 7. Analyze: 'litter' stressed at first syllable 'mountainous' stressed at first syllable 'worker' stressed at first syllable 'volcanic' stressed at second syllable Therefore, 'volcanic' has a different stress position to other words. Answer: D. volcanic 8. Analyze: 'example' stressed at second syllable 'circle' stressed at first syllable 'matter' stressed at first syllable 'humour' stressed at first syllable Therefore, 'example' has a different stress position to other words. Answer: A. example 9. Analyze: 'nation' stressed at first syllable 'person' stressed at first syllable 'resident' stressed at first syllable 'scientific' stressed at third syllable Therefore, 'scientific' has a different stress position to other words. Answer: D. scientific 10. Analyze: 'agree' stressed at second syllable 'employee' stressed at second syllable 'attendee' stressed at second syllable 'committee' stressed at second syllable All of the given words have the same stress position at the second syllable. However, based on the given options, we need to select the best answer. Since there is no clear distinction, the best answer can be 'employee', 'attendee', or 'committee'. However, for the sake of answering, we can choose any of these options. Answer: B. employee