Unit Four
Teaching Plan
Aims
1,Introduce modal auxiliaries plus present
perfect
2,Make students realize the importance of
environmental protection
Contents
1,Language structures ( auxiliary plus present
perfect)
2,Dialogue I ( Pollution Control)
3,Reading I and II
4,exercises
Focus
? Environmental pollution
? Environmental protection
? Measures/actions
Difficulty
? Comprehension of Reading I
? Awareness of environmental protection
Step One Structures
1,Introduce the structures
Would have done ( unfulfilled wish)
Should/ought to have done (unfulfilled obligation)
Needn’t have done ( unnecessary past action)
May/ might have done ( speculations about past actions)
Can’t/couldn’t have done ( negative deduction about past actions)
Must have done ( affirmative deduction about past actions)
2,Practice the sentence patterns using the cues on Page.46 Why
Longer Life Expectancy?
Step Two Dialogue One
Pollution Control
1,What city are the speakers talking about?
What do you know about it?
2,Is it seriously polluted? Why or why not?
3,What are the usual causes for pollution?
4,What measures do you think we should take?
Words and Expressions
Dense (density/densely) enforce
Swarm with torment suburban (urban,rural)
Industrial zone be equipped with
Residential intolerable (tolerate) irritated
Blow horns restriction on… make attempts
To that effect bring sth under control
Raise people’s awareness of
take drastic( effective and rapid) measures
in the not too distant future
Step Three Reading I
Environmental Pollution
Questions:
1,How does man pollute his surroundings?
2,Why is environmental pollution a serious
problem?
3,Why is it a complicated problem?
4,What measures have been mentioned to
check pollution?
Reading II
Preserving the Environment in the U.K
Questions:
1,In what respects are people affected by
technological progress?
2,What is happening in the countryside as far
as ecology is concerned?
3,What measures has the U.K taken to
preserve the environment?
Vocabulary
Deteriorate technological
Assail( attack sb violently and repeatedly)
Mobility exhaust fumes insecticide
Countermeasure bronchial
Be fouled up with ( make sth dirty)
Step Four exercises
? Guided writing
? Comprehensive exercises