三、完形填空（★★★）
I have three questions for you: Do you often 1 a blue sky above our city? Is the air in our city fresh? Is the water in our river clean? The answers to these questions are all "No!"
My 2 often tells interesting stories about his childhood. At that time, the sky was 3, the air was fresh and the water was clean. When my grandfather and his friends played in the forest, they could hear the 4 sing. When they swam in the river, they could see many fish. It was a happy time. But today the air and water are much 5. Some animals and plants are now 6. The Earth is 7.
I want you to join us by helping protect our Earth because it is our 8. We do not need to do 9 things. We can start out small. Do not throw any rubbish onto the ground. Do not waste water. Use both sides of the paper when you 10.
This is our Earth. Let's try our best to protect it.
()1. A. put B. buy C. fly D. see
()2. A. father B. mother C. grandfather D. grandmother
()3. A. blue B. white C. black D. green
()4. A. snakes B. trees C. birds D. flowers
()5. A. fresher B. dirtier C. deeper D. drier
()6. A. working B. protecting C. studying D. disappearing
()7. A. in time B. in trouble C. in fact D. in public
()8. A. home B. family C. chance D. time
()9. A. new B. long C. big D. small
()10. A. speak B. write C. drive D. travel

1~5 D C A C B 6~10 D B A C B

【分析】做完形填空需先通读全文把握主题（本文为环保主题），再结合上下文语境、词汇词义辨析逐一解题。需根据每道题前后文的逻辑关系、固定搭配及词汇含义，筛选出符合语境的正确选项。
【解析】1. 考查动词辨析，句意为“你经常看到城市上方的蓝天吗？”，see表示“看到”，符合语境，选D；2. 由后文“my grandfather”可知此处指祖父，选C；3. 童年时天空是蓝色的，对应前文的“blue sky”，选A；4. 森林里能听到鸟唱歌，birds符合语境，选C；5. 现在空气和水比过去更脏，dirtier符合环境恶化的描述，选B；6. 环境恶化导致动植物消失，disappearing符合，选D；7. 地球处于困境，in trouble是固定搭配，选B；8. 地球是我们的家，home符合，选A；9. 由“start out small”可知不用做大事，big符合，选C；10. 用纸时用两面，write符合语境，选B。
【答案】1~5 D C A C B；6~10 D B A C B
【知识点】完形填空、词汇辨析、语境理解
【点评】本文围绕环保主题展开，考查学生对上下文语境的理解及常用词汇的辨析能力，题目难度适中，需结合文章逻辑和主题选择答案。
【难度系数】0.6

① The smallest plant is as small as a grain of rice. 最小的植物就像一粒米一样小。
“as + adj. / adv. 的原级 + as” 意为“像……一样……”，其否定形式为“not so / as + adj. / adv. 的原级 + as”，意为“不如……一样……”。如：
Daniel does sports every day. He can swim as fast as his elder brother. 丹尼尔每天都做运动。他能游得和他哥哥一样快。
Travelling by coach is not so / as safe as travelling by train. 乘长途客车旅行不如乘火车安全。
【拓展】as ... as 的常见用法
1. as soon as 意为“一……就……”，引导时间状语从句。如：
I'll call you as soon as I finish my homework. 我一完成功课，就会给你打电话。
2. as long as 意为“只要……；长达……之久”。如：
As long as we study hard, nothing can stop us from achieving success. 只要我们努力学习，没有什么能阻止我们取得成功。
3. as ... as possible 意为“尽可能……”。如：
Please call me back as soon as possible. 请尽快给我回电话。
4. as far as 意为“就……（而言）；尽……；至于（表示程度或范围）”。如：
As far as I am concerned, you can do what you like. 就我而言，你想干什么就干什么。
应用
()1. The boy can run as as his father.
A. fast B. faster C. fastest D. much faster
()2. They will start to climb the mountain the sun rises up.
A. as soon as B. as long as C. as far as D. as well as
3. 拉里不如他的朋友比尔有趣。(根据汉语意思完成句子，每空一词)
Larry is his friend Bill.

1. A 2. A
3. not so / as funny as

【分析】
本题考查英语中as...as结构的用法及相关拓展短语，解题思路如下：1. 第1题根据as...as同级比较的规则，判断中间需用形容词/副词原级；2. 第2题分析各选项短语含义，结合句意选择合适的连词短语；3. 第3题根据“不如”的否定原级比较结构，结合汉语意思完成填空。
【解析】
1. 选项分析：as...as结构用于同级比较，中间必须使用形容词或副词的原级。A选项fast为副词原级，B选项faster是比较级，C选项fastest是最高级，D选项much faster是比较级，因此选A。
2. 选项分析：A选项as soon as意为“一……就……”，符合“太阳一升起就开始爬山”的句意；B选项as long as意为“只要；长达”，C选项as far as意为“就……而言；尽……”，D选项as well as意为“也；和……一样好”，均不符合语境，因此选A。
3. 结构应用：“不如……有趣”需用否定的原级比较结构not so/as + 形容词原级 + as，“有趣”的英文是funny，因此填not so / as funny as。
【答案】
1. A 2. A 3. not so / as funny as
【知识点】
形容词原级比较、连词短语辨析、否定原级比较
【点评】
本题围绕as...as结构及其拓展短语展开，是初中英语基础语法题，重点考查学生对同级比较规则和常见连词短语的掌握，难度适中。
【难度系数】
0.3