11.2 DISCUSSING SAFETY PROCEDURES

MUST
1. 1. To express obligation or duty .
  1. This also refers to laws and regulations.
    1. Examples
      1. • I must memorize all of these rules about modal verbs.
      2. • People must remain seated until the show is over.
      3. • You must wear a seatbelt at all times.
2. 2. To emphasize the necessity of something
  1. Examples:
    1. • Humans must have drinking water at least every two days.
    2. • You must give up smoking, it's bad for you.
    3. • We must have a special permit to camp in the national park.
3. 3. Deduction - Sure that something is true (Certainty)
  1. We use this when we don't know but we are certain that it is true (based on evidence).
    1. Examples
      1. • Look at all of that snow. It must be really cold outside.
      2. • The ground was wet this morning. It must have rained last night.
      3. • It's five in the morning and you still haven't gone to bed? You must be tired!
4. 4. Expresses positive logical assumptions (Must + have + past participle)
  1. Examples
    1. • He must have won the lottery with the new house and car he has just bought.
    2. • She must have been at home - her car was there.
5. 5. A strong recommendation
  1. Something that is highly recommended (stronger than using should)
    1. Examples
      1. • We really must get together for dinner sometime
      2. • You must see the new Peter Jackson movie, it's fantastic.
      3. • The ice cream here is delicious. You must try some.
6. MUSTN'T
  1. The negative is Mustn't which refers to prohibition (negative obligation)
    1. Mustn't = Must not
      1. • You mustn't use your smartphone while you are driving.
      2. • You mustn't get on the subway if you haven't paid for the ride.
      3. • We must not tell anyone.
HEALTH AND SAFETY
1. Types of Eye Protection
  1. Safety spectacles.
  2. Goggles.
  3. Welding shields.
  4. Laser safety goggles.
  5. Face shields.
2. Head Protection
  1. Types of Hard Hats
    1. Class A hard hats
    2. Class B hard hats
    3. Class C hard hats
3. Foot and Leg Protection
  1. Metatarsal guards
  2. Toe guards
  3. Combination foot and shin guards
  4. Safety shoes
4. Hand and Arm Protection
5. Hearing Protection

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11.2 DISCUSSING SAFETY PROCEDURES

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	Created by Adelaida Granados about 9 years ago