３．年齢

◆～歳　
・They interviewed 30 children from 5 to 11 years old.    [5~11才までの]
・George, a soft-spoken 41-year-old, is a sales representative.
    穏やかな話し方をする[41才の]販売員だ。
・Katie, age 9, is enjoying an outing with her mother.
   ケイティは、9才、母親とのお出かけを楽しんでいる。
・A woman, aged 26, and a man, aged 35, were arrested on the suspicion of theft.
  26才の女性と、35才の男性が、窃盗の容疑で逮捕された。

◆～歳で、～歳のとき
・He got remarried at the age of 54.
・At age seven, he and his whole family moved to France.
・At 27, she was selected as the editor-in-chief.

◆～代  
・Trained men and women in their twenties are scarce.  [20代の]
・I am entering my 30s.  [30代]
・The biggest shift has been among young teens.  [10代の]
　＊teenager/teensは13~19までを表す
◆～代前半/ 半ば/ 後半
・The criminal was in his early 20s, about 170cm and of medium build.
・When I first started driving around America, I was in my mid-fifties.
・She looked in her late sixties.

◆年齢層  age group, age bracket
・My parents made friends in all age groups. [あらゆる年齢層]
・The percentage of women in that age bracket with one child was 9.6 percent.　[年齢層]

◆～歳以上　　
・Less than 2 percent of women who are 80 and older die of breast cancer.   [80才以上]
・I don't think everybody over 30 is over the hill.  [30才以上]

◆～歳以下・未満
・Hyde Park, Daily, 9 a.m. to 5 p.m.; $14, free for 15 and younger.　
・That question was asked in an informal survey of passengers below age 12.

◆その他
・at an early age   幼い頃に
・at a young/younger age　若くして
・at an older age, in old age　高齢で、年を取って
・between the ages of 10 and 20　10才から20才のとき
・aged 10 to 20　10才から20才（で）