I. Choose one word whose underlined part is pronounced different from the others (1 point). 1. A. natural B. nature C. native D. nation 2. A. southern B. northern C. mouths D. months 3. A. bot...

Based on the given IPA notations, let's analyze the pronunciation of each word in the options: 1. The difference in pronunciation is: - A. natural: ˈnæʧərəl - B. nature: (assuming the standard pronunciation) ˈneɪʧər - C. native: ˈneɪtɪv - D. nation: ˈneɪʃən The underlined part 'na-' in 'nation' is pronounced differently (as 'neɪʃ' instead of 'neɪ-'), but also 'natural' has a distinct underlined part (ˈnæ- instead of 'neɪ-'). Therefore the word in which the underlined part is pronounced different from the others is 'natural'. The correct answer for the first question is A. 2. The difference in pronunciation is: - A. southern: ˈsəðərn - B. northern: ˈnɔrðərn - C. mouths: maʊðz - D. months: mənθs The underlined parts of 'mouths' (maʊ-) and 'months' (mən-) are pronounced differently from the others ('southern' and 'northern'). However, both are different. Thus we need more information. Since this is the case of choosing one word, we might pick one of 'mouths' and 'months', assuming the other options have the same sound of the underlined part. The correct answer for the second question is D. 3. The difference in pronunciation is: - A. both: (assuming the standard pronunciation) boʊθ - B. cloth: (assuming the standard pronunciation) klɔθ - C. ghost: goʊst - D. sold: soʊld The underlined parts of 'both', 'ghost', and 'sold' have a similar sound (oʊ), while the 'cloth' underlined part ('o') has a distinct sound. Thus the word in which the underlined part is pronounced differently from the others is 'cloth'. The correct answer for the third question is B. 4. The difference in pronunciation is: - A. examine: ɪgˈzæmɪn - B. determine: dɪˈtərmən - C. famine: (assuming the standard pronunciation) ˈfæmɪn - D. dine: daɪn The underlined parts of 'determine', 'famine' have a distinct 'i' sound (ɪ) and 'i' sound (ɪ), while 'examine' has the same sound but in a different position (ɪ- before 'gz-') and the underlined part of 'dine' has a distinct sound (aɪ-). The word in which the underlined part is pronounced different from the others is 'dine'. The correct answer for the fourth question is D. 5. The difference in pronunciation is: - A. sacred: (assuming the standard pronunciation) ˈseɪkrɪd - B. decided: dɪˈsaɪdɪd - C. contaminated: kənˈtæməneɪtɪd - D. watered: (assuming the standard pronunciation) ˈwɔtərd The underlined part of 'contaminated' has a distinct 'aɪ' sound in the middle of the word, however in this option there is no underlined part in 'contaminated' for aɪ, while 'decided' has the distinct 'aɪ' sound in the underlined part. The word in which the underlined part is pronounced different from the others is 'decided'. The correct answer for the fifth question is B.