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八、阅读还原（有两项多余）
The weather is getting cooler; the trees are turning brown—it’s autumn!
Why do leaves turn yellow?
In autumn, leaves go from green to orange, red, yellow and brown. A chemical called chlorophyll (叶绿素) plays a role. 1.
This feeds the trees and keeps the leaves green. But as autumn comes, the chlorophyll becomes less. The green color goes away, and now we can see the other colors in the leaves.
2.
In autumn, apples are good for you and there are lots of other anti-inflammatory (抗炎的) foods to try as well, such as cabbage, caulif
er (花椰菜), garlic, peas, ginger (姜) and all kinds of lettuce.
Is it autumn or fall?
3.
Do some outdoor activities!
Autumn is a perfect season, with a comfortable temperature for people to do some outdoor events. 5.
A. What do people usually wear in autumn?
B. What are the special foods in autumn?
C. Chlorophyll helps trees make sugar from sunlight.
D. Farmers are very busy in autumn because it’s a harvest season.
E. The third season of the year has two names, autumn and fall.
F. Climb the mountains or bike down the roads in the countryside.
G. But if you go to the US, you'll find American people use both fall and autumn when referring to this season.
The weather is getting cooler; the trees are turning brown—it’s autumn!
Why do leaves turn yellow?
In autumn, leaves go from green to orange, red, yellow and brown. A chemical called chlorophyll (叶绿素) plays a role. 1.
C
This feeds the trees and keeps the leaves green. But as autumn comes, the chlorophyll becomes less. The green color goes away, and now we can see the other colors in the leaves.
2.
B
In autumn, apples are good for you and there are lots of other anti-inflammatory (抗炎的) foods to try as well, such as cabbage, caulif
er (花椰菜), garlic, peas, ginger (姜) and all kinds of lettuce.Is it autumn or fall?
3.
E
Both of them were born in Britain. What exactly you should call that season depends on where in the world you are and whom you ask. In Great Britain, it usually has only one name: autumn. 4. G
Do some outdoor activities!
Autumn is a perfect season, with a comfortable temperature for people to do some outdoor events. 5.
F
Just give yourself a break to enjoy nature.A. What do people usually wear in autumn?
B. What are the special foods in autumn?
C. Chlorophyll helps trees make sugar from sunlight.
D. Farmers are very busy in autumn because it’s a harvest season.
E. The third season of the year has two names, autumn and fall.
F. Climb the mountains or bike down the roads in the countryside.
G. But if you go to the US, you'll find American people use both fall and autumn when referring to this season.
答案
【主旨大意】本文是一篇说明文，从科学、饮食、语言文化和活动四个方面介绍了秋季特征，包括叶子变色的原理、应季食物、季节名称的由来以及适合的户外活动。
1.C 2.B 3.E 4.G 5.F
1.C 2.B 3.E 4.G 5.F
解析
【分析】
做阅读还原题时，需先通读全文把握主旨，再结合每个空格前后的句子语境，分析选项与上下文的逻辑关联，逐一匹配答案。比如第1空需衔接叶绿素的作用，第2空需引出秋天食物的话题，第3空需回答季节名称的问题，第4空需补充不同地区的名称用法，第5空需对应户外活动的内容。
【解析】
1. 第1空：前文提到叶绿素起作用，后文“这给树提供养分、保持叶子绿”是叶绿素的效果，选项C“叶绿素帮助树木从阳光中制造糖分”解释了叶绿素的作用，衔接上下文，故选C。
2. 第2空：后文围绕秋天的抗炎食物展开，选项B“秋天有什么特殊食物？”引出该话题，符合语境，故选B。
3. 第3空：前文提出“是autumn还是fall？”的问题，后文说明两个名称的起源，选项E“一年的第三个季节有两个名字：autumn和fall”直接回答问题，故选E。
4. 第4空：前文说英国通常只用autumn，选项G“但如果你去美国，会发现美国人提到这个季节时用fall和autumn两种说法”形成转折，补充不同地区的用法，故选G。
5. 第5空：前文讲秋天适合户外活动，选项F“爬山或在乡间公路骑车”是具体的户外活动，符合语境，故选F。
【答案】1.C 2.B 3.E 4.G 5.F
【知识点】阅读还原题、说明文阅读、语境匹配
【点评】本题考查学生对文章逻辑结构和上下文语境的理解能力，需结合段落主旨与句子间的逻辑关系选答案，难度适中。
【难度系数】0.6
做阅读还原题时，需先通读全文把握主旨，再结合每个空格前后的句子语境，分析选项与上下文的逻辑关联，逐一匹配答案。比如第1空需衔接叶绿素的作用，第2空需引出秋天食物的话题，第3空需回答季节名称的问题，第4空需补充不同地区的名称用法，第5空需对应户外活动的内容。
【解析】
1. 第1空：前文提到叶绿素起作用，后文“这给树提供养分、保持叶子绿”是叶绿素的效果，选项C“叶绿素帮助树木从阳光中制造糖分”解释了叶绿素的作用，衔接上下文，故选C。
2. 第2空：后文围绕秋天的抗炎食物展开，选项B“秋天有什么特殊食物？”引出该话题，符合语境，故选B。
3. 第3空：前文提出“是autumn还是fall？”的问题，后文说明两个名称的起源，选项E“一年的第三个季节有两个名字：autumn和fall”直接回答问题，故选E。
4. 第4空：前文说英国通常只用autumn，选项G“但如果你去美国，会发现美国人提到这个季节时用fall和autumn两种说法”形成转折，补充不同地区的用法，故选G。
5. 第5空：前文讲秋天适合户外活动，选项F“爬山或在乡间公路骑车”是具体的户外活动，符合语境，故选F。
【答案】1.C 2.B 3.E 4.G 5.F
【知识点】阅读还原题、说明文阅读、语境匹配
【点评】本题考查学生对文章逻辑结构和上下文语境的理解能力，需结合段落主旨与句子间的逻辑关系选答案，难度适中。
【难度系数】0.6
