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[2026原创]句子还原。 ▶“答案与解析”见D24
根据短文内容，从方框内的选项中选出能填入空白处的最佳选项(有两项多余)。
Once a tree seed starts to grow roots, it makes a thin stem that comes out of the ground. Slowly, it becomes a common tree. How long it takes to grow to its full height depends on many things—especially what kind of tree it is! 1.
For example, white oaks need many years to reach their full height of 100 feet or more. But they can live as long as 600 years. Gray birches grow as fast as 2 feet every year. 2.
Coast redwoods(红杉) grow fast. They are very tall and can live a long time. When they are young, many grow 2～3 feet a year. When fully grown, they can be over 300 feet tall. These big trees finish most of their height growth in their first 100 years. 3.
Why do trees grow at different speeds? Each kind of tree is adapted to its own living environment. During the year, it gets similar temperatures, water and sunlight each season. 4.
5.
（素材来源：Highlights for Children）
A. Trees need many things to grow well.
B. A tree may grow fast or slow, tall or short.
C. We can plant more trees to make the air fresh.
D. There are thousands of different kinds of trees.
E. Some animals like to live in the holes of big trees.
F. However, they can live for more than 1,000 years.
G. They reach full height (20 to 30 feet) in about 10 years.
6. 拓展迁移 Besides height, in what other ways do trees keep growing?
7. 拓展迁移 What can we do to help trees grow well in our daily life?
根据短文内容，从方框内的选项中选出能填入空白处的最佳选项(有两项多余)。
Once a tree seed starts to grow roots, it makes a thin stem that comes out of the ground. Slowly, it becomes a common tree. How long it takes to grow to its full height depends on many things—especially what kind of tree it is! 1.
D
And they grow at different speeds.For example, white oaks need many years to reach their full height of 100 feet or more. But they can live as long as 600 years. Gray birches grow as fast as 2 feet every year. 2.
G
But they only live for about 40 years.Coast redwoods(红杉) grow fast. They are very tall and can live a long time. When they are young, many grow 2～3 feet a year. When fully grown, they can be over 300 feet tall. These big trees finish most of their height growth in their first 100 years. 3.
F
Why do trees grow at different speeds? Each kind of tree is adapted to its own living environment. During the year, it gets similar temperatures, water and sunlight each season. 4.
B
This kind of growth pattern helps it live in its environment. Bad weather can also influence how trees grow by giving too much or too little sun, water, heat or cold.5.
A
If they get all these things, they usually grow to their full height before they are halfway through their life. After that, they still grow in other ways. Every year, their trunks(树干), roots and branches become thicker. That's amazing!（素材来源：Highlights for Children）
A. Trees need many things to grow well.
B. A tree may grow fast or slow, tall or short.
C. We can plant more trees to make the air fresh.
D. There are thousands of different kinds of trees.
E. Some animals like to live in the holes of big trees.
F. However, they can live for more than 1,000 years.
G. They reach full height (20 to 30 feet) in about 10 years.
6. 拓展迁移 Besides height, in what other ways do trees keep growing?
Their trunks, roots and branches become thicker every year.（答案不唯一）
7. 拓展迁移 What can we do to help trees grow well in our daily life?
We can water young trees often and protect them from being cut down.（答案不唯一）
答案
1. D 下文提及“它们的生长速度各不相同”，上文对应表示:有成千上万种不同的树木。
2. G 下文表示转折“可它们的寿命只有约 40 年”，上文对应表示:它们能在大约 10 年的时间里长到最高。
3. F 上文提及“这些高大的树木在前 100 年就基本完成了长高的过程”，下文表示转折:不过，它们的寿命可以超过1 000 年。
4. B 由“这样的生长方式能帮助它在自己的环境中存活”可知，上文表示:一棵树可能长得快或慢、高或矮。
5. A 由“如果这些条件都能得到满足，它们通常会在生命过半之前就长到最高高度”可知，上文表示:树木生长需要很多条件。
6.【拓展迁移】Their trunks, roots and branches become thicker every year.（答案不唯一）
7.【拓展迁移】We can water young trees often and protect them from being cut down.（答案不唯一）
2. G 下文表示转折“可它们的寿命只有约 40 年”，上文对应表示:它们能在大约 10 年的时间里长到最高。
3. F 上文提及“这些高大的树木在前 100 年就基本完成了长高的过程”，下文表示转折:不过，它们的寿命可以超过1 000 年。
4. B 由“这样的生长方式能帮助它在自己的环境中存活”可知，上文表示:一棵树可能长得快或慢、高或矮。
5. A 由“如果这些条件都能得到满足，它们通常会在生命过半之前就长到最高高度”可知，上文表示:树木生长需要很多条件。
6.【拓展迁移】Their trunks, roots and branches become thicker every year.（答案不唯一）
7.【拓展迁移】We can water young trees often and protect them from being cut down.（答案不唯一）
解析
【分析】做句子还原题时，先通读全文把握主旨（本文围绕树木的种类、生长速度、影响生长的因素及生长特点展开）；再逐个分析空白处的上下文逻辑，寻找语义衔接、逻辑连贯的选项，同时注意排除多余选项；拓展迁移题需结合原文细节或生活常识作答。
【解析】1. 上文提及树木长成后的高度取决于种类，下文提到“它们生长速度不同”，D项“有成千上万种不同的树木”衔接上下文，故选D；2. 上文介绍灰桦每年生长2英尺，下文转折说明其寿命约40年，G项“它们约10年就能长到最高（20至30英尺）”衔接灰桦的生长情况，故选G；3. 上文提到红杉前100年完成大部分长高，F项“不过它们能活1000多年”转折说明红杉寿命长，故选F；4. 下文指出“这种生长模式帮助它适应环境”，B项“树可能长得快或慢、高或矮”衔接生长模式的差异，故选B；5. 下文提到“如果得到所有这些条件，就能长到最高高度”，A项“树木生长需要很多条件”引出下文的条件，故选A；6. 由原文最后一段“Every year, their trunks, roots and branches become thicker.”可知答案；7. 结合生活实际，可从浇水、保护树木等方面作答，合理即可。
【答案】1.D 2.G 3.F 4.B 5.A；6. Their trunks, roots and branches become thicker every year.；7. We can water trees regularly and protect them from being cut down.
【知识点】阅读理解（句子还原）、语篇逻辑衔接、生活常识应用
【点评】本题为句子还原类阅读理解题，侧重考查学生对语篇上下文逻辑的理解与衔接能力，拓展迁移部分结合原文细节和实际生活，难度适中，适合初中阶段学生练习。
【难度系数】0.6
【解析】1. 上文提及树木长成后的高度取决于种类，下文提到“它们生长速度不同”，D项“有成千上万种不同的树木”衔接上下文，故选D；2. 上文介绍灰桦每年生长2英尺，下文转折说明其寿命约40年，G项“它们约10年就能长到最高（20至30英尺）”衔接灰桦的生长情况，故选G；3. 上文提到红杉前100年完成大部分长高，F项“不过它们能活1000多年”转折说明红杉寿命长，故选F；4. 下文指出“这种生长模式帮助它适应环境”，B项“树可能长得快或慢、高或矮”衔接生长模式的差异，故选B；5. 下文提到“如果得到所有这些条件，就能长到最高高度”，A项“树木生长需要很多条件”引出下文的条件，故选A；6. 由原文最后一段“Every year, their trunks, roots and branches become thicker.”可知答案；7. 结合生活实际，可从浇水、保护树木等方面作答，合理即可。
【答案】1.D 2.G 3.F 4.B 5.A；6. Their trunks, roots and branches become thicker every year.；7. We can water trees regularly and protect them from being cut down.
【知识点】阅读理解（句子还原）、语篇逻辑衔接、生活常识应用
【点评】本题为句子还原类阅读理解题，侧重考查学生对语篇上下文逻辑的理解与衔接能力，拓展迁移部分结合原文细节和实际生活，难度适中，适合初中阶段学生练习。
【难度系数】0.6
