2021年高考英語難點37講--難點23 有章可循的主旨大意題

—causes as much as 50% of the smog-producing compounds and chemical rain in our atmosphere;
—causes 60% of the carbon monoxide in our atmosphere.
when you consider that the average person breathes in 9 000 quarts of air a day,you realize how important clean air is to human being.
the government has spent billions of dollars to control car pollution.yet,some big cities are still in violation(侵害) of public health standards that protect people from breathing poisonous air.the health care costs related to unclean air are huge.
the traditional way of cleaning up what comes out of tailpipes has not done the job of getting rid of automobile emissions(散發物).yet today’s cars produces far less pollution than models from the 1960’s.but there are now almost 51 million more cars on the road than there were in 1960,and drivers are traveling many more miles.as a result,cars are still the single largest source of city pollution today.
if we are going to achieve clean air,we need to discourage car use by individuals,especially during rush driving hours.
at the same time we reduce car use,we must also improve our public transportation system.if going to and from work by public transportation was convenient and cheap,people would use the system instead of using cars to drive to work.
yes,it will cost money to improve our public transportation system.but we now spend billions each year in controlling car emissions without much success.giving some of that money to public transportation would be a small price to pay for cleanest air.
unless we do something to reduce car use and get people to use public transportation,our love affair with the car will be the death of our environment.
5.()what is the main idea of the passage?
a.car use needs to be discouraged.
b.clean air is only possible if we reduce car use during rush hours.
c.car use is causing problems with the ozone layer creating poisonous gases.
d.the government spends billions of dollars controlling the pollution coming from cars.
f
after 78 years in the uk,the dutch clothing retailer (零售商) has closed shop for the last time.but c & a is not alone.in the past week the best known names on british high streets-marks & spencer,boots and littlewoods—have announced some of their worst ever trading figures.
the downturn is not a case of belt tightening.although there are fears of a recession(衰退),uk consumer (消費者) spending has set new records in the past year.experts say the sudden fall is the result of a revolution that is changing almost every side of british lives.