课时同步（重大版）高二下英语选修6Unit1-3

Mr.White ____________(代表)himself as an expert in protecting environment.
During the course of history，many____________(协议)have been made between France and England.
If global warming continues，more and more species of land plants and animals are becoming ____________(灭绝的)．
The legal speed ____________(有限的)within the city is 35 miles per hour.
Faced with these____________(吓人的)findings，we should take measures to protect our environment.

选词填空

________ the newspapers，many leaders of laws from different countries attended the opening ceremony of the 2010 Shanghai World EXPO.

It seemed that he was________ losing his life.Luckily，he was________in the end.

It is said that the girl will have a chance to________her country to take part in the 2012 London Olympic Games.

Our teacher advised you to ________the article that is too long so as to make it fit the space.

I have________the habit of rising early and going to bed late.

________around the fire，the tourists danced with the local people.

If you take________risk of not wearing a seat belt，you will be at________risk.

I suggested he work out a new plan but he didn’t ________it.

The snowstorm hit the city yesterday，________millions of people homeless.

It is not always easy for the public to see ________ use a new invention can be of to human life.

War，money and power  are a few things that countries  and  people  are  concerned  about.____I agree that those  things are important，I believe that everyone should start to____more on a growing problem—global warming.
Global warming will not only____our country and our generation，but also the entire____and future generations.It is____because the weather has been a lot warmer over the past few years，which____the melting (融化) of the ice in the Antarctic.This will soon cause water levels to____and flood parts of the world.
Many people ignore this   problem because they feel____they can’t do anything about it and have more____things to worry about.If we all____so，then our  ozone layer (臭氧层) will  be____and the planet  will no longer be able to  make life continue to exist.We should do our best to  limit the use of our planet’ s____resources (资源)  and  keep  our  air  clean.____， future  generations  will suffer from our ____．
Some  might  feel  that they can’t stop global warming from____．But if every single person does his or her part in keeping the air clean，then it will become a____effort.Sure，there are some things that cause pollution and that we won’ t be able to____change.This may include cars burning oil，but we can____adjust some of these things.People can start carpooling，taking the bus，riding their bikes，or____ just walking.
If everyone takes____ now，I believe we can start seeing  remarkable  results within a few years.

A．When B．As C．How D．Though

A．depend B．focus C．hang D．remark

A．annoy B．interrupt C．affect D．confuse

A．world B．continent C．industry D．climate

A．failing B．completing C．changing D．occurring

A．lies in B．results in C．suffers from D．escapes from

A．reduce B．rise C．drop D．move

A．as if B．in case C．even though D．if only

A．popular B．suitable C．important D．difficult

A．do B．keep C．like D．find

A．protected B．strengthened C．destroyed D．surrounded

A．unlimited B．natural C．recycled D．industrial

A．Therefore B．Otherwise C．However D．Instead

A．illnesses B．failures C．decisions D．mistakes

A．continuing B．arriving C．improving D．disappearing

A．physical B．mental C．national D．worldwide

A．slightly B．fully C．hardly D．slowly

A．at least B．at most C．at first D．at last

A．yet B．even C．still D．thus

A．time B．turns C．action D．arms

Global warming is when the earth heats up，the temperature rises.It happens when greenhouse gases—carbon dioxide，water vapor，nitrous oxide (二氧化氮)，and methane (沼气) trap heat and light from the sun in the earth’s atmosphere，which increases the temperature.This is like when heat is trapped in a car.On a very hot day，the car gets hotter when it is out in the parking lot.This is because the heat and light from the sun can get into the car，by going through the windows，but it can’t get back out.Once the light is inside the car，it is trapped and the heat builds up，just like it does in the earth’s atmosphere.This is what the greenhouse effect does to the earth.The heat and light can get through the atmosphere，but it can’t get out.As a result，the temperature rises.
Sometimes the temperature can change in a way that helps us.The greenhouse effect makes the earth appropriate for people to live on.Without it，the earth would be freezing，or on the other hand it would be burning hot.We would not get the sun’s heat and light to make the night somewhat warm.During the day，especially during the summer，it would be burning because the sun would be up with no atmosphere to filter (过滤) it，so people，plants，and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the earth can get unusually warmer，and many plants，animals，and people will die.They would die because there would be less food (plants like corn，wheat，and other vegetables and fruits)．This would happen because the plants would not be able to take in the heat.This would cause us to have less food to eat，but it would also limit the food that animals have.Gradually，people，plants，and animals would all die of hunger.
People are doing many things to try to stop global warming.One thing people are doing is carpooling.Carpooling is driving with someone to a place that you are both going to.This minimizes the amount of greenhouse gases put into the air by a car.
Another thing that people are doing is being more careful about leaving things turned on like the television，computer，and the lights.A lot of people are taking time away from the television，and instead，they are spending more time outdoors.This helps our planet out a lot.Now，more people are even riding buses，walking to school，and riding their bikes to lower the amount of greenhouse gases in the air.
Planting trees and recycling also help.If you recycle，less trash goes to the dump，and less trash gets burned.As a result，there are fewer greenhouse gasses in our atmosphere.Although adults do many things to help stop global warming，kids can do just as much.
The underlined word “it” in Paragraph 2 refers to________．

By the example given in Paragraph 1，the author wants to________．

What is the effect of atmosphere?

What is the main idea of the third paragraph?