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