1. A. task: tæsk, B. skating: ˈskeɪtɪŋ, C. school: skul, D. science: saɪəns
The underlined part in 'task' is pronounced differently from the others (the 'a' is pronounced as 'æ', whereas in the other words it's 'eɪ', 'u', 'aɪ').
2. A. films: fɪlmz, B. sports: spɔrts, C. runs: rənz, D. flowers: flaʊərz
The underlined part in 'sports' is pronounced differently from the others (the 'o' is pronounced as 'ɔ', whereas in the other words it's 'ɪ', 'ə', 'aʊ').
3. A. plant: plænt, B. water: ˈwɔtər, C. section: ˈsɛkʃən, D. forest: ˈfɔrɪst
The underlined part in 'section' is pronounced differently from the others (the 'e' is pronounced as 'ɛ', whereas in the other words it's 'æ', 'ɔ', 'ɔ').
4. A. festivals: ˈfɛstɪvəlz, B. Conditioners: kənˈdɪʃənərz, C. disasters: dɪˈzæstərz, D. performances: pərˈfɔrmənsɪz
The underlined part in 'Conditioners' is pronounced differently from the others (the stress is on the second syllable, whereas in the other words the stress is on the first syllable).
5. A. Christmas: ˈkrɪsməs, B. armchair: ˈɑrmʧɛr, C. teacher: ˈtiʧər, D. chocolate: ˈʧɔklət
The underlined part in 'teacher' is pronounced differently from the others (the 'ea' is pronounced as 'iʧ', whereas in the other words the 'ea' or 'e' is pronounced differently, 'ɪsm', 'ɑrm', 'ɔkl').
6. A. tidy: ˈtaɪdi, B. pollution: pəˈluʃən, C. protect: prəˈtɛkt, D. prevent: prɪˈvɛnt
The underlined part in 'tidy' is pronounced differently from the others (the stress is on the first syllable and the 'y' is pronounced as 'aɪ', whereas in the other words the stress is on the second syllable and the 'u' or 'e' is pronounced differently, 'uʃ', 'ɛkt', 'ɛnt').
7. A. school: skul, B. headache: ˈhɛdeɪk, C. character: ˈkɛrɪktər, D. children: ˈʧɪldrən
The underlined part in 'school' is pronounced differently from the others (the 'o' is pronounced as 'u', whereas in the other words it's 'eɪ', 'ɛ', 'ɪ').
8. A. volcanic: vɑlˈkænɪk, B. fire: faɪər, C. disaster: dɪˈzæstər, D. tsunami: tsuˈnɑmi
The underlined part in 'tsunami' is pronounced differently from the others (the stress is on the second syllable, whereas in the other words the stress is on the second syllable but with a different pronunciation, 'vɑ', 'fa', 'dɪ').
9. A. cycling: ˈsaɪkəlɪŋ, B. climbing: ˈklaɪmɪŋ, C. cooking: ˈkʊkɪŋ, D. counting: ˈkaʊntɪŋ
The underlined part in 'cooking' is pronounced differently from the others (the 'o' is pronounced as 'ʊ', whereas in the other words it's 'aɪ', 'aɪ', 'aʊ').
10. A. chats: ʧæts, B. learns: lərnz, C. stops: stɑps, D. books: bʊks
The underlined part in 'stops' is pronounced differently from the others (the 'o' is pronounced as 'ɑ', whereas in the other words it's 'æ', 'ə', 'ʊ').
Here are the answers:
1. A. vacation B. become C. design D. cycling
Analyze:
'vacation', 'become', 'design' are stressed at the second syllable,
'cycling' is stressed at the first syllable
Answer: D. cycling
2. A. never B. country C. prefer D. weather
Analyze:
'never', 'country', 'weather' are stressed at the first syllable,
'prefer' is stressed at the second syllable
Answer: C. prefer
3. A. tidy B. protect C. create D. prevent
Analyze:
'tidy' is stressed at the first syllable,
'protect', 'create', 'prevent' are stressed at the second syllable
Answer: A. tidy
4. A. tornado B. earthquake C. typhoon D. tsunami
Analyze:
'tornado', 'typhoon', 'tsunami' are stressed at the second syllable,
'earthquake' is stressed at the first syllable
Answer: B. earthquake
5. A. entertainment B. transportation C. facility D. conversation
Analyze:
'entertainment', 'transportation', 'conversation' are stressed at the third syllable,
'facility' is stressed at the second syllable
Answer: C. facility
6. A. another B. flower C. computer D. because
Analyze:
'another', 'because' are stressed at the second syllable,
'flower', 'computer' are stressed at the first and second syllable respectively.
It seems a bit ambiguous, but 'flower' is the only word that is definitely stressed at the first syllable only.
Answer: B. flower
7. A. recycle B. reduce C. organize D. important
Analyze:
'recycle', 'reduce', 'important' are stressed at the second syllable,
'organize' is stressed at the first syllable
Answer: C. organize
8. A. karate B. recipe C. jewelry D. practice
Analyze:
'karate' is stressed at the second syllable,
'recipe', 'jewelry', 'practice' are stressed at the first syllable
Answer: A. karate
9. A. boring B. England C. activity D. scary
Analyze:
'boring', 'England', 'scary' are stressed at the first syllable,
'activity' is stressed at the second syllable
Answer: C. activity
10. A. pollution B. tourism C. business D. natural
Analyze:
'tourism', 'business', 'natural' are stressed at the first syllable,
'pollution' is stressed at the second syllable
Answer: A. pollution
Here are the answers:
1. C. on
2. B. departs
3. D. Going out for a walk.
4. B. What did you do last Monday?
5. C. skateboarding
6. C. eat
7. B. from
8. C. I agree. They do more physical activities.
9. A. traditional