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必修三《Unit 9 Wheels Bulletin Board》优秀ppt课件
road construction
speed limit
traffic jams
air pollution
traffic pollution
carbon monoxide
oil shortage
Pre-reading Task
Traffic pollution is one of the major causes for__________.
The large number of cars, road construction and car accidents may cause ___________.
________________produced by car engines is related to lung cancers.
air pollution
traffic jams
Carbon monoxide
Pre-reading Task
The oil price will be so high in the future because of________.
You will get a speeding ticket if you don’t pay attention to the ___________sign while driving.
oil shortage
speed limit
Q1.What does passage 1 mainly talk about?
Problems cars have caused.
Q2.What does passage 2 mainly talk about?
Two ideal cars.
While-reading task 1 Skim the two passages
Q3. What is the relationship between Passage 1and 2?