完形填空（共20小题；每小题1．5分，满分30分）
阅读下面短文，从短文后备题所给的四个选项（A、B、C和D）中，选出可以填人空白处的最佳选项，并在答题卡上将该项涂黑。
War, money and power are a few things that countries and people are concerned about. 36 I agree that those things are important，I believe that everyone should start to 37 more on a growing problem — global warming.
Global warming will not only 38 our country and our generation, but a1so the entire 39 and future generations. It is 40 because the weather has been a lot warmer over the past few years, which 41 the melting（融化） of the ice in the Antarctic. This will soon cause water levels to 42 and flood parts of the world.
Many people ignore this problem because they fee1 43 they can’t do anything about it and have more 44 things to worry about. If we al1 45 so，then our ozone layer（臭氧层）will be 46 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 47 resources（资源）and keep our air clean. 48 , future generations will suffer from our 49 .
Some might feel that they can't stop global warming from 50 But if every single person does his or her part in keeping the air clean. then it will become a 51 effort. Sure, there are some things that cause pollution and that we won’t be able lo 52 change. This may include cars burning oil，but we can 53 adjust some of these things. People can start carpooling, taking the bus, riding their bikes, or . 54 just walking.
If everyone takes 55 now, I believe we can start seeing remarkable results within a few years.
36．A．When B．As C．How D．Though
37．A．depend B．focus C．hang D．remark
38．A．annoy B．interrupt C．affect D．confuse
39．A．world B．continent C．industry D．climate
40．A．failing B．completing C．changing D．occurring
41．A．lies in B．results in C．suffers from D．escapes from
42．A．reduce B．rise C．drop D．move
43．A．as if B．in case C．even though D．if only
44．A．popular B．suitable C．important D．difficult
45．A．do B．keep C．like D．find
46．A．protected B．strengthened C．destroyed D．surrounded
47．A．unlimited B．natural C．recycled D．industrial
48．A．Therefore B．Otherwise C．However D．Instead
49．A．illnesses B．failures C．decisions D．mistakes
50．A．continuing B．arriving C．improving D．disappearing
51．A．physical B．mental C．national D．worldwide
52．A．slightly B．fully C．hardly D．slowly
53．A．at least B．at most C．at first D．at last
54．A．yet B．even C．still D．thus
55．A．time B．turns C．action D．arms