### Exercise 1: Choose the word whose underlined part is pronounced differently from the others.

1. **A. share** - /ʃɛr/
**B. paintbrush** - /peɪntbrʌʃ/
**C. visit** - /ˈvɪzɪt/
**D. sure** - /ʃʊr/
**Answer: A. share** (the "sh" sound /ʃ/ is pronounced the same as in "sure," but the vowel sound is different from "visit" which has /ɪ/)

2. **A. television** - /ˈtɛlɪˌvɪʒən/
**B. exhibition** - /ˌɛksɪˈbɪʃən/
**C. emotion** - /ɪˈmoʊʃən/
**D. discussion** - /dɪsˈkʌʃən/
**Answer: C. emotion** (the "mo" sound /moʊ/ is different from the others)

3. **A. casual** - /ˈkæʒuəl/
**B. usual** - /ˈjuːʒuəl/
**C. pleasure** - /ˈplɛʒər/
**D. museum** - /mjuˈziəm/
**Answer: A. casual** (the "cas" sound has the /æ/ vowel sound while the others have /ju/ or /ɛ/)

4. **A. mission** - /ˈmɪʃən/
**B. composer** - /kəmˈpoʊzər/
**C. finish** - /ˈfɪnɪʃ/
**D. chef** - /ʃɛf/
**Answer: B. composer** (the "pos" sound has the /oʊ/ sound, while the others do not)

### Exercise 2: Put the words in the correct column.

#### /∫/
- share
- casual
- pleasure
- chef
- ship
- wash
- mash
- collision

#### /ȝ/
- leisure
- sure
- vision
- television
- emotion
- national
- treasure
- mirage
- shoe

This categorization divides the words based on their distinct phonetic groups, focusing on the sounds /ʃ/ and /ʒ/.