Unit 9 Health care
unit 9 health careⅰ.brief statements based on the unit
health care,the topic of this unit,is connected with our daily life closely.the improvement of health care is not only an assurance of people’s health,but also a sign of the society’s development,so the students’ interest in it can easily be aroused.thus,their integrating skills to use language can be well developed.
by finishing the tasks of warming up,speaking,writing and grammar,the students not only practise expressing opinions,but also practise using the subjunctive mood to talk about things that are imaginary or unreal events and situations.by listening,the students learn something about the who and the outbreaking and controlling of the sars.by reading one passage,the students learn that the government and some international organizations are making efforts to improve the weakest members’ health care situations in order to reduce poverty.by reading another passage,the students learn something about fleming—the penicillin discoverer and the great contributions made by him to health care.at the same time,the students learn some useful words and expressions for health care.
ⅱ.teaching goals
1.talk about health care.
2.practise talking about society and values.
3.practise expressing opinions.
4.review the subjunctive mood(2).
5.write an article for a journal.
ⅲ.background information
sir alexander fleming
sir alexander fleming was born at lochfield near darvel in ayrshire,scotland on august 6th,1881.he attended louden moor school,darvel school,and kilmarnock academy before moving to london where he attended the polytechnic.he spent four years in a shipping office before entering st.mary’s medical school,london university.he qualified with distinction in 1906 and began research at st.mary’s under sir almroth wright,a pioneer in vaccine therapy.he gained m.b.,b.s.,(london),with gold medal in 1908,and became a lecturer at st.mary’s until 1914.he served throughout world war ⅰ as a captain in the army medical corps,being mentioned in dispatches,and in 1918 he returned to st.mary’s.he was elected professor of the school in 1928 and emeritus professor of bacteriology,university of london in 1948.he was elected fellow of the royal society in 1943 and knighted in 1944.
sir alexander wrote numerous papers on bacteriology,immunology and chemotherapy,including original descriptions of lysozyme and penicillion.they have been published in medical and scientific journals.
early in his medical life,fleming became interested in the natural bacterial action of the blood and in antiseptics.he was able to continue his studies throughout his military career and on demobilization he settled to work on antibacterial substances which would not be toxic to animal tissues.in 1921,he discovered in tissues and secretions an important bacteriolytic substance which he named lysozyme.about this time,he devised sensitivity titration methods and assays in human blood and other body fluids,which he subsequently used for the titration of penicillin.in 1928,while working on influenza virus,he observed that mould had developed accidently on a staphylococcus culture plate and that the mould had created a bacteria-free circle around itself.he was inspired to further experiment and he found that a mould culture prevented growth of staphylococci,even when diluted 800 times.he named the cative substance penicillin.