warm-up Questins
1. How often do you get sick?
2.do you know the difference between a general physician and a medical specialist
A bit of humor
I told my doctor I broke my leg in two places.he told me to quit going to those places.
Vocabulary
evaluate--to judge the value or condition of(sth or sb) in a careful and thoughtful way
symptom--a change in the body or mind whitch indicates that a disease is present
teatment--administration or application of remedies(救济方法) to a patient to help with a disease or injury
assessment(评估)--the act of judgement about sth
premature(早产的)--born before the normal time
hypertension（高血压）--high blood presure
Introduction
Usually when we get sick we go to a general physician,who evaluates our symptoms,and suggests a suitable treatment plan ,Sometimes a general physician might reconmend a patient(病人) visit a specialist for advanced treatment and assessment(评估).
A specialist center only on one aspect(方面) of care such as cardiology(内科) or surgery(外科)（among others）.Usually a patient need a referral(转诊病人) from the general physician when initiating(开始) appointments with a speciallist .Today we will take a look into some of the most common medical specialties.
Have you ever been referral to a specialist?
orthopedic(整形外科)
Orthopedic doctors specialize（专门研究） in bone and skeleton(骨骼) related problems and diseases.You can go to an orthopedic doctor if you have anything from a broken bone to a damaged tendon and even for a hip replacement(髋关节置换)
Orthopetic doctors study for more than eight year,what do you think about that ,do you that is too long?
Neonatology(新生儿学)
when a baby is born premature or ill.a neonatology will evaluate the baby's condition and decide what kind of treatment she or he needs.
Are you good with kids?What 's qualities do you a neonatologist should have?
Psychiatrist(精神病学家)
psychiatrists help people with any type of mental(精神) disorder(混乱，失调),and treat disabilities or illness resulting from such disorders.
do you know the difference between a psychiatrist（精神病学家） or a psychologist(心里学家)
cardiology（心脏病学）
Cardiologists help people with diseases if the heart,some of the most common condition cardiologists are:hypertension and heart attacks.
do you know any tips to prevent heart diseases?
do you thing stress can cause a heart attack?
Neurology(神经病学，神经学)
Neurologists specialize in diagnosing(诊断) and treating disorders of the central nervous system: the brain ,the spinal cord(脊髓) and all the nerves(神经) in body.
What would you do if you had a constant headache that didn't go away no matter what you did