Exercise 1. Find the word which has a different sound in the underlined part. 1. A. reduce B. release C. forest D. process 2. A. cutting B. rubbish C. harmful D. substance 3. A. risk B. wild C. habitat...

I'll analyze the pronunciation of each word and answer the questions. 1. A. reduce B. release C. forest D. process The underlined part has the "e" sound, but it's pronounced differently: - reduce: rɪˈdus (u sound) - release: riˈlis (i sound) - forest: ˈfɔrɪst (ɪ sound) - process: ˈprɔsɛs (ɛ sound) Answer: All words have a different sound in the underlined part, but the most different sound is in the word "reduce" (u sound). However, if we compare these four words, the most distinct difference in pronunciation is between 'reduce' (with a 'u' sound) and the other three (with 'i', 'ɪ', and 'ɛ' sounds respectively). But in this case we need to compare the underlined parts and notice the 'e' is pronounced differently, so release, forest, process have the 'e' pronounced as i, ɪ and ɛ respectively, while reduce has 'u' sound. 2. A. cutting B. rubbish C. harmful D. substance The underlined part has the "u" or "u" sound: - cutting: ˈkətɪŋ (ʊ or ə sound) - rubbish: ˈrəbɪʃ (ʊ or ə sound) - harmful: ˈhɑrmfəl (ɑ sound, but also has an "ə" sound) - substance: ˈsəbstəns (ə sound) However, harmful has an "ɑ" sound which is different from the ə,ʊ or ʊ sounds of the other three words. Answer: C. harmful. 3. A. risk B. wild C. habitat D. pick The underlined part has the "i" sound: - risk: rɪsk (ɪ sound) - wild: waɪld (aɪ sound, this is a diphthong but the sound of 'i' here is different from that of the other words) - habitat: ˈhæbətæt (æ and ə sound, but no "i" sound) - pick: pɪk (ɪ sound) Since the "i" sound in the word wild is pronounced as a diphthong (aɪ), this is the most different. Answer: B. wild. 4. A. lock B. stop C. novel D. come The underlined part has the "o" sound: - lock: lɑk (ɑ sound) - stop: stɑp (ɑ sound) - novel: ˈnɑvəl (ɑ sound) - come: kəm (ə sound, and then a different sound for the "o", this is an "ɒ" sound but not pronounced) Since the "o" sound in the word "come" is pronounced as a schwa sound followed by a different vowel, this is the most different. No "o" is pronounced in come. Instead we have a ə sound and then another vowel. Answer: D. come. 5. A. save B. preparation C. became D. signature The underlined part has the "e" sound: - save: seɪv (eɪ sound, this is a diphthong) - preparation: prɛpərˈeɪʃən (ɛ and eɪ sound) - became: bɪˈkeɪm (eɪ sound, and an ɪ sound) - signature: ˈsɪgnəʧər (ɪ sound) Since the word "signature" has an "ɪ" sound, and the other words have an "eɪ" sound (diphthong), or an "ɛ" sound and also a diphthong. Answer: D. signature