阅读短文,用英文填空或回答问题。(注意每小题的词数要求)
Nature has many interesting rules. For example, rivers always go from high places to low places. They carry water to the ocean. The sun rises in the east and sets in the west. This helps us know what time of day it is.
Seasons follow rules. Spring is for new life, summer is hot, fall is for harvests and winter is cold. These rules help everything stay in balance (平衡).
Plants follow rules. Most flowers open in the day and close at night to save energy. Trees grow toward the sun to get light.
Animals also follow rules, too. Birds fly to warmer places in winter. They go back home in spring. Bees do a special dance to show other bees where flowers are. Squirrels (松鼠) store nuts for winter. They hide them so they have food when it's cold.
Learning about nature's rules can help us take better care of our world. Nature is amazing!
21. In Paragraph 1, we can know interesting about rivers and the sun. (仅填1词)
22. Seasons change to help everything . (3词以内)
23. Most flowers can save energy by . (3词以内)
24. How do squirrels prepare for winter?
. (10词以内)
25. If you see a butterfly trying to come out of its cocoon (茧), will you help it? Why?
. (20词以内)

21. rules
22. stay in balance
23. closing at night
24. They store nuts for winter / By storing nuts
25. 略

【分析】
本题为英语阅读理解题，需根据题目要求定位原文对应段落提取答案。21题要求填1词，定位第一段首句及后续举例，找到关于河流和太阳的有趣内容；22题要求3词以内，定位第二段最后一句提取关键信息；23题要求3词以内，定位第三段找到花节省能量的方式；24题要求10词以内，定位第四段松鼠的行为；25题为开放题，结合原文及常识合理作答。
【解析】
21. 定位第一段，首句提到自然有很多有趣的规则，后续举河流和太阳的例子，符合题意，故填rules；
22. 定位第二段最后一句“These rules help everything stay in balance”，直接提取答案，符合3词以内要求；
23. 定位第三段“Most flowers open in the day and close at night to save energy”，提取方式为closing at night，符合要求；
24. 定位第四段“Squirrels store nuts for winter”，整理为符合词数的回答；
25. 结合常识：蝴蝶破茧需自身挣扎锻炼翅膀，帮助会导致翅膀无力，合理作答即可。
【答案】
21. rules；22. stay in balance；23. closing at night；24. They store nuts for winter；25. 略
【知识点】
阅读理解细节理解、信息定位
【点评】
本题围绕自然规则展开，前4题考查原文细节定位，难度较低；最后一题是开放题，需结合常识作答，整体难度适中，能有效考查学生的信息提取能力。
【难度系数】
0.6