(三)
Some of the greatest problems we face today are the destruction破坏 of the environment. These problems seem so huge.
So my family do what we can. 1. We walk where we don't have to drive. But does it do any good?
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. 2. However, the next day they try again. This time a 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 thousands of others still take no notice, the great migration plan is once again stopped.
3. The same small group of birds once again starts flying and a small number of more join in just as before, and then more. 4. What a spectacular sight it must be—thousands of flamingos taking off into the sky at once!
Every little step can make a difference. Even if you're the one to take the first step, continue trying, and others will someday take notice. 5.
A. Then one day something changes.
B. We take cloth bags to stores instead of using plastic bags.
C. Finally, they all take flight and the migration really begins.
D. And together we will solve even our greatest problems.
E. But none of the others seem to notice, so the small group returns.

1.B 2.E 3.A 4.C 5.D

【分析】
本题为英语七选五题型，解题思路是先通读全文把握主旨（小行动可汇聚成大力量，环保需从小事做起），再结合每个空前后句子的语境、逻辑关系（如顺承、转折、指代、总结等）匹配对应选项，确保内容连贯、逻辑通顺。
【解析】
1. 前文提到“my family do what we can”（我的家人尽己所能），后文举例“我们步行不用开车”，此处应补充家庭做的环保小事，选项B“我们带布袋子去商店而不是用塑料袋”符合语境，故1选B。
2. 前文说几只火烈鸟先起飞，后文“然而第二天它们又尝试”，此处应说明首次尝试失败的原因，选项E“但其他火烈鸟似乎都没注意，所以这小群返回了”衔接合理，故2选E。
3. 前文提到迁徙计划多次被阻止，后文“同样的小群又开始飞”，此处应表示情况发生变化，选项A“然后有一天情况变了”承上启下，故3选A。
4. 前文说越来越多火烈鸟加入，后文描述壮观景象，此处应说明最终结果，选项C“最后，它们全部起飞，迁徙真正开始了”符合逻辑，故4选C。
5. 前文强调小行动的力量，此处应总结升华，选项D“一起我们甚至能解决最大的问题”呼应主旨，故5选D。
【答案】
1.B 2.E 3.A 4.C 5.D
【知识点】
英语七选五、上下文语境推理、句子逻辑衔接
【点评】
本题通过火烈鸟迁徙的例子传递“小行动汇聚大力量”的道理，解题核心是把握上下文的逻辑关联，难度适中，能有效考查学生的阅读理解与逻辑分析能力。
【难度系数】
0.5

(四)
Parts of Africa are covered by a dark cloud. 1. It is a living cloud made of billions of locusts蝗虫 that are travelling across the continent eating everything in their path.
And now in the battle to stop this disaster, a radio station in Senegal, West Africa, is offering listeners 50 kilograms of rice if they can catch and kill 50 kilograms of locusts. "2. " said Abdoulaye Ba from Sud-Fm, a radio station in one of Senegal's worst-affected areas.
This is West Africa's biggest locust disaster in 15 years, and it is moving east, causing huge damage to crops. As they move, they produce young and increase their number and will soon threaten威胁 Sudan in the northeast of Africa. 3.
Experts say some areas are suffering from food shortage and war. 4. Governments in the areas haven't prepared well to fight the pests.
Although leaders of 12 countries have agreed on a plan, it is not enough. 5.
A. Some say it could reach Asia.
B. Now more and more people are trying their best to control the disaster.
C. We think this idea will get more people to take part in the war on the locusts,
D. The harmful effect on crops could cause many people to go hungry.
E. But this is not rain cloud.

1.E 2.C 3.A 4.D 5.B

【分析】
这是一道英语补全对话题，解题思路为：先通读全文把握文章核心（西非蝗灾的现状、影响及应对），再结合每个空格前后的语境、逻辑关系（转折、顺承、因果等）匹配选项。具体：1空前后提到“乌云”和“活的蝗虫云”，需转折排除“雨云”；2空对应电台负责人对“奖励抓蝗虫”措施的评价；3空顺承前文“蝗虫威胁苏丹”的扩散推测；4空衔接前文“缺粮”的影响；5空补充前文“12国计划不足”的应对补充。
【解析】
1. 空格前描述“乌云”，空格后说明是“蝗虫组成的活云”，前后为转折关系，需排除“雨云”，故选E；
2. 空格前是电台的奖励措施，空格后是电台负责人的表述，C选项是负责人对该措施的评价，符合语境；
3. 空格前提到蝗虫向东移动威胁苏丹，A选项“可能到达亚洲”是对蝗灾扩散的进一步推测，顺承前文；
4. 空格前提到“缺粮和战争”，D选项说明蝗灾对庄稼的影响会导致挨饿，衔接前文的缺粮问题；
5. 空格前说12国的计划不够，B选项“越来越多人尽力控制灾难”是对不足计划的补充，符合逻辑。
【答案】
1.E 2.C 3.A 4.D 5.B
【知识点】
英语补全对话、语篇理解
【点评】
本题考查英语语篇的逻辑衔接能力，需结合上下文语境、逻辑关系匹配选项，难度适中，适合初中阶段学生练习。
【难度系数】
0.5