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M7U2_Reading理解和知识点讲解PPT课件

Unit 2 Fit for Life
Welcome to the unit
Can you name any jobs that are related to medicine?
a person who
prepares and a chemist sells medicine
a person who performs medical operations
the Nobel Prize in Medicine.
Effects of aspirin
• Reduce fever and help stop pain • Reduce the risk of heart attacks • Prevent strokes • Reduce the risk of some cancers by 40% • Increase the length of people’s lives • Reduce blood sugar levels
Development of aspirin
In 1900: sold in shops in the form of
tablets
In 1971: proved to reduce the risk of
heart attacks
In 1977: used to prevent strokes
In 2003: used to reduce blood
Name of the Aspirin medicine
Penicillin
Development
●Nearly 3,500 years ago, people used leaves (1)_____ a special chemical to reduce body pains and fever.
● Around 2,500 years ago, Hippocrates made a (2)____ from a tree bark with salicylic acid for the same effect.
● In 1897,Dr Felix Hoffmann produced aspirin from salicylic acid.
● Aspirin was initially used with patients in (3)______ form in 1899.
● In 1900, aspirin came onto the (4)_____ in the form of tablets. Shortly afterwards it became the best-selling painkiller in the world.
Effects of penicillin
• Help in treating wounds and illnesses caused by bacteria
Consoliation: Task-based reading
Fill in the blanks with no more than one word according to the text(P18-19).
sugar levels
Development of Penicillin
In 1928: discovered by Alexander Fleming
In 1940: made and tested in large quantities
In 1944: mass production began In 1945: The three scientists shared
● In 1928, the drug was discovered, but it wasn’t (7)______ enough to work as a medicine and was hard to produce in large (8)_____.
● In 1940, two other scientists helped find (9)_______ to the two problems.
a surgeon
a person who examines people’s eyes to see if they need to wear glasses
an eye doctor
a person who takes care of people’s teeth
a dentist
What happens to the person? He is receiving an acupuncture treatment on an ear.
• Do you know what they are?
aspirin penicillin
How much do you know about the two medicines?
1.When was penicillin first discovered? In 1928.
2. What award did Fleming, Florey n and Chain share? The Nobel Prize in Medicine.
What is acupuncture?
Acupuncture is the use of needles to _t_r_e_a_t__ people’s health problems.
Hale Waihona Puke Lead-inWhat will you do if you fall ill?
take medicine
have an injection
Structure analysis
Part I (para. 1) _In_t_r_o_d_u_c_t_io_n_ to the topic Part II (paras. 2-3) The development and
_e_ff_e_c_t_s of aspirin
Part III (paras. 4-5) The development and effects of penicillin
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