To determine which word has an underlined part that differs from the other three in pronunciation, we need to analyze the IPA notations for each set of words.
1. A. appliance: əˈplaɪəns
B. breadwinner: ˈbrɛdwɪnər
C. housewife: ˈhaʊswaɪf
D. childhood: ˈʧaɪldhʊd
In the underlined part, the words "breadwinner," "housewife," and "childhood" all have the stress on the first syllable, but "appliance" has an unstressed "ə" at the beginning. However, if we focus on the vowels in the underlined parts, we'll see "ɪ" in "breadwinner," "aʊ" in "housewife," and "aɪ" in both "childhood" and "appliance." Given this, the underlined part that differs most is likely "breadwinner," but focusing on a more distinct pattern, "housewife" is the most distinct due to "aʊswaɪf" as it is the only word that contains the combination "aʊswaɪ." Still, if the pattern is that the other three words have "ɪ," "aɪ," and "aɪ," and "housewife" has "aʊswaɪ," then it has a different pattern. Hence, "housewife" is the most different, but so is "breadwinner," however "housewife" is distinct due to a different pattern.
2. A. generation: ʤɛnərˈeɪʃən
B. international: ɪnərˈnæʃənɑl
C. suggestion: səˈʤɛsʧən
D. connection: kəˈnɛkʃən
In the underlined part, the words "international," "suggestion," and "connection" all have the stress on the second syllable, but "generation" has an unstressed "ʤɛnə" at the beginning. In the underlined part, all four words have an "ɛ" or an "eɪ." However, if we look at the vowels right after the stressed syllable in each word, we'll see an "æ" in "international," an "ɛ" in "suggestion," and an "ɛ" in "connection," but an "eɪʃ" in "generation." Given this, the underlined part that differs most is likely "generation," but focusing on a more distinct pattern, "international" is the most distinct due to having an "ɪ" then an "æ" after the stressed syllable as it is the only word that contains "ɪnərˈnæʃən." Hence, "international" is the most different due to having "ɪnərˈnæʃən."
3. A. fanny: ˈfæni
B. fairy: ˈfɛri
C. game console
D. pastry: ˈpeɪstri
Given that "fanny" is ˈfæni and "fairy" is ˈfɛri, and "pastry" is ˈpeɪstri, if we look at the underlined parts of the given words "fanny," "fairy," and "pastry," we see that the words "fanny" and "fairy" both have an "i" in their spellings but "fanny" is ˈfæni and "fairy" is ˈfɛri. On the other hand, the word "pastry" has an "y" at the end, but its pronunciation is ˈpeɪstri.