Download Unit 18

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 nonfacts and present imaginary consequences
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…
Dialogues (2课时)
 Dialogue 1
 Broad questions
 Questions on specific
details
 Main idea
 Language teaching
points and practice
 Dialogue 2
 Past regrets
 Substitution practice
Language points









1. flop n. (inf) total failure
e.g. that get-together was a complete ~ and nobody
enjoyed 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.
Readings (2课时)
 Reading 1
 Sample questions
 New words and
phrases
 Language teaching
points
 Reading 2
 Sample questions
 Language teaching
points
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;
extreme

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
 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
joined 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;
antirust
Guided Writing (1课时)
Paragraph writing
Note offering something
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.
Background Information
Penicillin
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.
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.
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
 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.
Sir Alexander Fleming
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.
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