17
Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present imaginary consequences Sentences of unreal conditions with past non-facts and present imaginary consequences

Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Embed Size (px)

Citation preview

Page 1: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Unit 18

Objectives:

Sentences of unreal conditions making a supposition about the future

Sentences of unreal conditions with present non-facts and present imaginary consequences

Sentences of unreal conditions with past non-facts and present imaginary consequences

Page 2: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Language Structure Practice(1课时 )

1. I would… if I could…2. If Tom had been…, he would not be

doing…3. If he had been…, he would not have

made…

Page 3: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Dialogues (2课时 )

Dialogue 1 Broad questions Questions on specific

details Main idea Language teaching p

oints and practice

Dialogue 2 Past regrets Substitution practice

Page 4: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Language points

1. flop n. (inf) total failure e.g. that get-together was a complete ~ and nobody en

joyed it. 2. mellow a. fully ripe in flavor or taste; mature e.g. ~ grapes/ tone of a violin/ attitude to life 3. cooperate v work or act together e.g. The British ~d with the French in building the new

craft. The mother asked the child to ~ and go to bed. immensely ad. to a very great extent; extremely e.g. I’m ~ pleased to have this job.

Page 5: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Readings (2课时 )

Reading 1 Sample questions New words and

phrases Language teaching

points

Reading 2 Sample questions Language teaching

points

Page 6: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Language points

1. damp a. not completely dry; slightly wet v. make damp; make less strong, restrain e.g His clothes was damped in the rain. The rain damped their spirit. 2. deadly a. causing, or likely to cause, death; e

xtreme ad. As if dead; extremely e.g. Fog is the sailor’s deadly enemy. She uses wit with deadly effect. Deadly enemies; deadly dull; deadly serious

Page 7: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

3. flourish v. be successful, very active, or widespread; prosper grow healthily; be well and active n. a period of thriving; a luxuriant growth or profusion e.g. The company has really flourished since the chief engineer join

ed us. The crops flourished in the rich bottom land. Chaucer flourished at the end of the 14th century.

4. antibiotic n. a. that can destroy or prevent the growth of bacteria anti- opposed to, against; preventing e.g. antimissile; antidiscrimination; anticlimax; anticlockwise; antirus

t

Page 8: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Guided Writing (1课时 )

Paragraph writingNote offering something

Page 9: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Assignments:

1. Work in pairs to practice the situation in each dialogue.

2. Work in groups to discuss the topic of “After the Dress Rehearsal”.

3. Do the corresponding exercises in WB.

Page 10: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Background Information

Penicillin

Page 11: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

penicillin

Penicillin is one of the earliest discovered and widely used antibiotic agents, derived from the Penicillium mold. Antibiotics are natural substances that are released by bacteria and fungi into the their environment, as a means of inhibiting other organisms - it is chemical warfare on a microscopic scale.

Page 12: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

In 1928, Sir Alexander Fleming observed that colonies of the bacterium Staphylococcus aureus could be destroyed by the mold Penicillium notatum, proving that there was an antibacterial agent there in principle. This principle later lead to medicines that could kill certain types of disease-causing bacteria inside the body.

Page 13: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

At the time, however, the importance of Alexander Fleming's discovery was not known. Use of penicillin did not begin until the 1940s when Howard Florey and Ernst Chain isolated the active ingredient and developed a powdery

Page 14: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

It was not until 1939 that Dr. Howard Florey, a future Nobel Laureate, and three colleagues at Oxford University began intensive research and were able to demonstrate penicillin's ability to kill infectious bacteria. As the war with Germany continued to drain industrial and government resources, the British scientists could not produce the quantities of penicillin needed for clinical trials on humans and turned to the United States for help. They were quickly referred to the Peoria Lab where scientists were already working on fermentation methods to increase the growth rate of fungal cultures.

Page 15: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Sir Alexander Fleming

Page 16: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Life story

Sir Alexander Fleming (6 August 1881 – 11 March 1955) was a Scottish biologist and pharmacologist. Fleming published many articles on bacteriology, immunology, and chemotherapy. His best-known achievements are the discovery of the enzyme lysozyme in 1922 and discovery of the antibiotic substance penicillin from the fungus Penicillium notatum in 1928, for which he shared the Nobel Prize in Physiology or Medicine in 1945 with Florey and Chain.

Page 17: Unit 18 Objectives: Sentences of unreal conditions making a supposition about the future Sentences of unreal conditions with present non-facts and present

Death and legacy

In 1955, Fleming died suddenly at his home in London of a heart attack. He was cremated and his ashes interred in St Paul's Cathedral a week later. His discovery of penicillin had changed the world of modern medicine by introducing the age of useful antibiotics; penicillin has saved, and is still saving, millions of people. His widow presented his Nobel Prize medal to the Savage Club (a London Gentlemen's club), where Fleming was a member. The Medal is still proudly displayed among the Club's artifacts.

The laboratory at St Mary's Hospital, London where Fleming discovered penicillin is home to the Fleming Museum