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1、Section Welcome to the unit & Reading,速效提能演练,预习多维感知,Section ,重点难点探究,预习多维感知,Step One：Fast Reading Read the text and then choose the best answers. ( ) 1Who found penicillin? ADr.Thun. BAlexander Fleming. CHoward Florey. DErnst Chain.,B,2Because of _，mass production of penicillin started quickly. Athe
2、development of science Bthe development of medicine Cthe Nobel Prize in Physiology or Medicine,D,DWorld War 3According to the passage，penicillin can be used to treat the followings EXCEPT _. Aminor wounds Bpneumonia Cdiabetes Dbacterial illnesses,C,4Why was penicillin called the greatest drug of the
3、 20th century?( ) ABecause it was found by Alexander Fleming. BBecause it once made three people get the Nobel Prize.,D,CBecause it was found in the 20th century. DBecause it saved millions of lives. 5According to the passage，aspirin(ASA)can _.,B,(1)reduce fever (2)reduce pain (3)reduce the risk of
4、heart attacks (4)increase the length of peoples lives (5)prevent a stroke (6)reduce the risk of colon cancer (7)treat pneumonia,A(1)(2)(3)(4)(5)(6)(7) B(1)(2)(3)(4)(5)(6) C(1)(2)(4)(5)(7) D(1)(2)(3)(4)(7),Step Two：Listening Listen to the tape and answer the following questions. 1When did people find
5、 that drinking a special kind of tea could reduce body pains and fever? _,Nearly 3,500 years ago.,2When was penicillin first discovered? _ 3What award did Fleming，Florey and Chain share? _,In 1928.,The Nobel Prize in Medicine.,Step Three：Careful Reading Read the text and fill in the blanks.,Medicine
6、s,use/ practice,contained,chemicals,pain,heart,Preventing /Stopping,bacteria,length,levels,bacteria,Step Four：Summary W：Id like to know about the two medicinesaspirin and penicillin.Could you please tell me something about them? M：Ill be glad to.If you open up any medicine cupboard or go to any,medi
7、cine counter in the world，it is 1._ that you will find aspirin and penicillin.Both of them have saved many peoples lives since they were invented.,likely,W：When was aspirin invented? M：It was invented in 1897.Nearly 3,500 years ago，people found leaves possessing a special 2._ to reduce boby pains an
8、d fever.In 1897，a European chemist produced aspirin from this chemical.,chemical,The first 3._ of this medicine took place in 1899，when the powder form began to be used with 4._.In 1900，it was sold in shops in the form of 5._ and soon became the bestselling medicine.,trials,patients,tablets,W：Beside
9、s reducing fever and pain，what other functions does it have? M：It can also help reduce the risk of heart attacks and some cancer and so on. W：What about penicillin?,M：Penicillin was 6._by a Scottish scientist in 1928.He thought it might help in treating illnesses 7._by bacteria.But it was not until
10、World War that two other scientists found a procedure to make penicillin 8._ enough to,discovered,caused,pure,work as a medicine and managed to make and 9._ the new drug in large 10._.Thanks to it，many lives were saved during World War .,test,quantities,W：Ive learned a lot today.Thank you. M：Its a p
11、leasure.,Step Five：Discussion Do you believe that new medicines will be invented to treat diseases like AIDS in the future? _ _,I believe that more and more new medicines will be invented to treat diseases like AIDS with the,_ _,development of science and technology.Man can conquer all the diseases.
12、,重点难点探究,1Both of these medicines have saved millions of peoples lives and have proved beneficial to mankind since they were invented. 自这两种药被发明以来，它们已经挽救了数百万人的性命，并已证实对人类有益。,品味经典 The agreement will be beneficial to both parties. 这个协议对双方都有利。 A good diet is beneficial to health. 良好的饮食有益于健康。,自我探究 benefici
13、al adj.有益的，构成短语be beneficial to“对有益”。,归纳拓展 (1)be beneficial to sth./sb.(be of benefit to sth./sb.) 对有益 (2)benefit v& n. 有助于；受益；利益，好处,benefit from/by 从中受益 for the benefit of 为了的利益 Both sides have benefited from the talks. 双方都从会谈中受益。,I hope what I have written will be of benefit to someone else who ma
14、y feel the same way. 我希望我写的这些将对有同感的人有所帮助。,牛刀小试 单项填空 (1)The students union was founded for the _ of them. Abenefit Badvantage Cinterest Dvalue,解析：选A。考查名词词义辨析。for the benefit of为了的利益；advantage优势；interest兴趣；value价值，均不合题意。,用benefit的适当形式填空 (2)The new regulations will be of _ to everyone concerned. (3)We should spend the money on something that will _ everyone.,benefit,benefit,(4)Using computers is _ to childrens learning.,beneficial,2Nearly 3,500 years ago，people chewed on leaves or drank a kind of tea made from leaves possessing a special chemical
