题目

War，money and power are a few things that countries and people are concerned about.__21__ I agree that those things are important，I believe that everyone should start to __22__ more on a growing problem—global warming. Global warming will not only __23__ our country and our generation，but also the entire _24__ and future generations.It __25__ because the weather has been a lot warmer over the past few years，which __26__ the melting(融化)of the ice in the Antarctic.This will soon cause water levels to __27__ and flood parts of the world. Many people ignore this problem because they feel __28__ they can't do anything about it and have more __29__ things to worry about.If we all __30__ so，then our ozone layer(臭氧层)will be __31__ 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 __32__ resources and keep our air clean.__33__，future generations will suffer from our __34__. Some might feel that they can't stop global warming from __35__.But if every single person does his or her part in keeping the air clean，then it will become a __36__ effort.Sure，there are some things that cause pollution and that we won't be able to __37__ change.This may include car burning oil，but we can __38__ adjust some of these things.People can start carpooling，taking the bus，riding their bikes，or __39__ just walking. If everyone takes __40__ now，I believe we can start seeing remarkable results within a few years. 21.A.When       B．As       C．How      D．Though 22. A．depend    B．focus     C．hang       D．remark 23. A．annoy     B．interrupt   C．affect       D．confuse 24.A. world       B．continent  C．industry     D．climate 25.A. fails        B．completes  C．changes     D．occurs 26. A. lies in      B.results in    C.suffers from      D.escapes from 27.A. reduce      B．rise       C．drop     D．move 28. A．as if       B．in case    C．even though     D．if only 29.A. popular      B．suitable   C．important  D．difficult 30. A．do         B．keep     C．like  D．find 31.A. protected   B.strengthened  C.destroyed  D．surrounded 32.A. unlimited   B．natural     C．recycled  D．industrial 33.A. Therefore   B．Otherwise  C．However  D．Instead 34.A.illnesses    B.failures      C．decisions  D．mistakes 35.A. continuing  B．arriving    C.improving   D．disappearing 36.A.physical    B.mental       C．national   D．worldwide 37.A.slightly     B．fully       C．hardly       D．slowly 38.A.at least     B．at most     C．at first     D．at last 39.A.yet        B．even       C．still          D．thus 40. A. time      B．turns       C．action   D．arms 答案：DBCAD  BBACA  CBBDA  DBABC

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