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

1. A. **share** B. **paintbrush** C. **visit** D. **sure**
**Answer: A. share** (pronounced with /ʃɛər/, the others with /ʃ/ or /ʤ/)

2. A. **television** B. **exhibition** C. **emotion** D. **discussion**
**Answer: D. discussion** (the "s" is pronounced as /s/, while others have /ʒ/)

3. A. **casual** B. **usual** C. **pleasure** D. **museum**
**Answer: C. pleasure** (the "s" is pronounced as /ʒ/, while others with /ʒ/ sound may vary slightly)

4. A. **mission** B. **composer** C. **finish** D. **chef**
**Answer: D. chef** (the "ch" in chef is pronounced /ʃ/, while the others have different pronunciations)

### Exercise 2: Put the words in the correct column.
**/ʃ/** (as in 'ship') | **/ʒ/** (as in 'measure')
--- | ---
shop | leisure
ship | measure
mash | pleasure
wash | television
cash | vision
casual | national
chef | treasure
mirage | sure

### Note:
1. The distinction between /ʃ/ (as in "ship") and /ʒ/ (as in "measure") is essential for proper pronunciation.
2. The words have been placed based on the pronunciation of the highlighted sounds.