13．Some of the greatest problems we face today are the destruction（破坏） of our environment．Brown clouds，polluted water，endangered wild animals…，these problems seem so huge．
So my family does what we can．We take cloth bags to stores instead of using plastic bags．We walk where we don't have to drive…
But does it do any good？When I am the only one in line at the market with cloth bags，am I doing any good？Does my walking to stores make any real difference to the world？
I recently learned something about flamingos（火烈鸟） which like to get together in groups of a thousand or more．Every year，when the time comes for migration（迁徙），a few of them first take off from the lake．But none of the others seem to notice，so the small group returns．However，the next day they try again．This time few more fly along with them，but most of them still pay no attention，so they return again．They try for several times．Every time a few more birds join in but，since the thousands of others still take no notice，the great migration plan is once more stopped．
Then one day something changes．The same small group of birds once again starts flying and a small number more join in just as before，then more．Finally，they all take flight and the migration really begins．What a spectacular sight it must be-thousands of flamingos taking off into the sky at once!
A few can make a difference．Even if you're the one to take the first step，and continue trying，others will someday take notice and together we will solve even our greatest problems．
80．Where would you most probably read this passage？C
A．A guidebook．
B．A movie poster．
C．A personal blog．
D．A geology（地质） magazine．
81．What's the writer's purpose of writing this article？B
A．To show that the writer loves to see the migration of flamingos．
B．To tell readers to continue trying and it can make a difference．
C．To introduce a special kind of flamingo to readers．
D．To show that there're many problems in the world．
分析 文章主要讲述我们生活的环境日渐糟糕引出话题，作者以火烈鸟为例，鼓励大家不断地尝试、努力就会有所收获，成就事情．
解答 80．C．推理判断题．文章主要讲述我们生活的环境日渐糟糕，作者以火烈鸟为例，鼓励大家不断地尝试、努力就会有所收获，成就事情．文章主要以作者自身的口吻进行叙述的，因此最可能出现在博客上．故选C．
81．B．主旨大意题．文章主要讲述我们生活的环境日渐糟糕引出话题，作者以火烈鸟为例，鼓励大家不断地尝试、努力就会有所收获，成就事情．根据A few can make a difference．Even if you're the one to take the first step，and continue trying，故选B．
点评 本题中个别小题不能直接从文中找到答案，需要自己根据相关内容分析总结．一定要弄懂全文后再动手解答问题．书写答案时，注意首字母大写．为避免不必要的错误，只要能使用原文的就尽量使用原文回答问题，自己总结的答案注意人称和数的变化，要符合语法规则．
