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HomeCourseSleep Science, Circadian Rhythm & ProductivityUse of English
Sleep Science, Circadian Rhythm & ProductivityL07
use_of_english

Use of English

Transformation, word formation and precision work in Cambridge C1 style.

50 minC1c1use_of_englishsleep-science-circadian-rhythm-productivitysleepcircadian rhythmproductivityword formation

Lesson objectives

  • Improve grammatical precision and collocational control.
  • Practise exam-style transformations and word formation systematically.
  • Connect structure and lexis back to the unit theme of sleep science, circadian rhythm & productivity.

Part 1 — Word formation

Instructions: Complete the sentences by changing the form of the word in CAPITALS at the end of each line.

  1. The _____ of sleep deprivation can lead to significant cognitive decline over time. DEPRAVE
  2. Scientists have discovered a _____ link between sleep quality and emotional stability. REMARK
  3. Many workers suffer from _____ due to irregular shift patterns. PRODUCT
  4. The ____ of the circadian rhythm is essential for maintaining a healthy metabolic rate. REGULATE
  5. For some, the feeling of tiredness in the morning is almost _____; they simply cannot wake up. OVERWHELM
  6. A lack of consistent sleep can lead to _____ changes in mood and temperament. PERMANENT
  7. Proper sleep hygiene is _____ for maintaining high levels of focus during the workday. ESSENCE
  8. The ____ of sleep cycles can be complex and difficult to map accurately. INTERACT

Part 2 — Key word transformations

Instructions: Complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not change the word given. You must use between three and six words, including the word given.

1. It seems that the employee is struggling to stay awake during meetings. APPEAR → There ______ that the employee is struggling to stay awake during meetings.

2. People often tend to sleep less when they are under a lot of stress. TENDENCY → There _____ to sleep less when under a lot of stress. 3. It looks like the new sleep study will be successful. APPEARANCE → The _____ of the new sleep study being successful is quite high. 4. It is common for students to stay up late during exam season. TENDENCY → There _____ to stay up late during exam season. 5. It seems likely that the caffeine will disrupt his sleep cycle. APPEAR → It _____ that the caffeine will disrupt his sleep cycle. 6. People often sleep more during the winter months. TENDENCY → There ______ to sleep more during the winter months.

Answer key

  1. deprivation
  2. remarkable
  3. unproductivity
  4. regulation
  5. overwhelming
  6. permanent
  7. essential
  8. interaction
  9. appears to be
  10. is a tendency for people
  11. appearance
  12. is a tendency for students
  13. would appear
  14. is a tendency for people