Unit 3 Keeping fit
1、health\healthy
n: health benefits\health risks\health problems\heath care\health education\health system
adj: in good health\in poor health\in excellent health\a healthy appetite\a healthy diet\a healthy economy\a healthy disrespect for authority
2、-tion、-tious
-tion 名词：action、repetition
-tious 形容词：repetitious
3、胖
obese
adj 肥胖的，臃肿的 She was not just overweight; she was clinically obese.
obesity
n 肥胖症 A diet that is high in fat and sugar can lead to obesity.
overweight
adj 肥胖的，超重的 If you luggage is overweight, you have to pay extra.
4、病
anxiety
n 焦虑；担心；焦虑症 Children normally feel a lot of anxiety about their first day at school.
an anxiety disorder/attack
depression
n 抑郁；忧郁；抑郁症 I was overwhelmed by feeling of depression. 我万念俱灰
insomnia
n 失眠症 Holly suffered from insomnia caused by stress at work
allergy
n 过敏反应 an allergy to wheat/a wheat allergy
allergic adj 过敏得 I'm allergic to cats.
infection
n 感染 a throat infection 咽喉感染
infectious adj 感染的 an infectious disease/patient
5、reduce、diminish、eliminate
reduce
v 减少；减小；降低；缩小 My weight reduce when I stop eating sugar.
diminish
v 减少，减小，降低 These memories will not be diminished by time.
eliminate
v 排除；消除；清除 We eliminated the possibility that it could have been an accident.
6、cure、treatment、therapy
cure
v 治愈，治好 At one time doctors couldn't cure TB/cure people of TB.
n 药物，治疗方法 The disease has no known cure(= a cure has not yet been found).
treatment
n 治疗，医治 free dental treatment
therapy
n 治疗；疗法 Joining a club can be a therapy for loneliness.
7、alternate、alternative
alternate
vi 轮流，交替 She alternated between cheerfulness and deep despair.
vt 使轮流，使交替 He alternated working in the office with long tours overseas.
adj 轮流的，交替的 a dessert with alternate layers of chocolate and cream.
alternative
adj （计划或方法）可替代的；可供选择 The opposition parties have so far failed to set out an alternative strategy.
n （尤指不同于平常事物）可供选择的事物（解决办法） There must be an alternative to people sleeping on the streets.
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