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第二节 阅读填空(每小题1分,共5分)
A sunflower's life begins with a seed. ______ 51 ______ Plant the seed in the soil
(泥土) and water the soil. With the right amount of water and warmth, the seed will
sprout in about one week.
As the sunflower grows up out of the soil, its roots grow down. 52
Its stem(茎) grows higher and higher above the ground, with wide leaves growing out
of the stem along the way. Thirty days after the plant comes out of the ground, the
flower of the plant begins to grow. ______ 53 ______
As the sunflower comes to the end of its life, the sunflower seeds dry up.
54 Birds eat some of the seeds. People take the sunflower seeds and eat
them, too. The seeds also have sunflower oil in them, which people use for cooking.
55 It gives us oxygen; it provides food for humans and animals; and
it brings colour and beauty to our planet. We must remember to take care of the plants
in our world because they take care of us!
A. Like other plants, the sunflower is very important for life on Earth.
B. To turn that seed into a plant, we first need to fill a pot with soil.
C. Some of them fall into the soil, where they will grow into new sunflowers the
next year.
D. They get water and food from the soil, helping the sunflower grow.
E. It is round and flat with bright yellow petals.
A sunflower's life begins with a seed. ______ 51 ______ Plant the seed in the soil
(泥土) and water the soil. With the right amount of water and warmth, the seed will
sprout in about one week.
As the sunflower grows up out of the soil, its roots grow down. 52
Its stem(茎) grows higher and higher above the ground, with wide leaves growing out
of the stem along the way. Thirty days after the plant comes out of the ground, the
flower of the plant begins to grow. ______ 53 ______
As the sunflower comes to the end of its life, the sunflower seeds dry up.
54 Birds eat some of the seeds. People take the sunflower seeds and eat
them, too. The seeds also have sunflower oil in them, which people use for cooking.
55 It gives us oxygen; it provides food for humans and animals; and
it brings colour and beauty to our planet. We must remember to take care of the plants
in our world because they take care of us!
A. Like other plants, the sunflower is very important for life on Earth.
B. To turn that seed into a plant, we first need to fill a pot with soil.
C. Some of them fall into the soil, where they will grow into new sunflowers the
next year.
D. They get water and food from the soil, helping the sunflower grow.
E. It is round and flat with bright yellow petals.
答案
51.B 52.D 53.E 54.C 55.A
解析
【分析】
这是一篇介绍向日葵完整生长周期的说明文类阅读填空题，解题时首先要通读全文和所有备选选项，梳理出文章是按照向日葵从种子萌发、生根长茎、开花、结籽到最终价值的生长顺序展开的，接下来逐空定位前后文的线索，通过前后句的指代关系、内容顺承逻辑匹配对应选项：
1. 51空前句点明向日葵的生命从种子开始，后句直接讲把种子种进土壤浇水，中间缺少把种子培育成植株的前置准备步骤的衔接内容，匹配对应选项。
2. 52空前句提到向日葵长出土壤后，它的根会向下生长，接下来自然要承接介绍根的作用，匹配对应选项。
3. 53空前句提到植株出土30天后向日葵的花开始生长，接下来自然要描述向日葵花的外观特征，匹配对应选项。
4. 54空前句提到向日葵生命走到末期时种子会变干，后句提到鸟类会吃掉一部分种子，中间要衔接种子的不同去向，匹配对应选项。
5. 55空后句罗列了向日葵提供氧气、给人和动物提供食物、美化地球的诸多作用，前句需要总述向日葵的重要性，匹配对应选项。
【解析】
51. 前句引出向日葵的起点是种子，后句讲播种浇水的操作，B选项“要把那颗种子培育成植株，我们首先需要在花盆里装满土”完美衔接前后内容，顺承引出后续播种的步骤，符合语境。
52. 前句提到向日葵的根向下生长，D选项的They指代前文的roots，说明根可以从土壤中获取水分和养分帮助向日葵生长，承接根的生长内容介绍根的功能，逻辑通顺。
53. 前句提到向日葵的花开始生长，E选项“它又圆又平，长着明亮的黄色花瓣”是对向日葵花朵外观的描述，顺承开花的内容，衔接自然。
54. 前句提到向日葵的种子变干，C选项“其中一些种子掉落到土壤里，来年就会长成新的向日葵”介绍了干种子的其中一个去向，和后文“鸟吃一部分种子”的内容并列，符合行文逻辑。
55. 后句罗列了向日葵对地球生命的诸多益处，A选项“和其他植物一样，向日葵对地球上的生命来说非常重要”是总起句，引出后文的具体好处，契合语境。
【答案】
51.B 52.D 53.E 54.C 55.A
【知识点】
语篇逻辑衔接，说明文行文脉络
【点评】
本题围绕学生熟悉的向日葵生长过程展开，行文逻辑清晰，按照事物发展的先后顺序排布内容，解题门槛较低，重点考察学生抓取前后句指代、顺承逻辑的能力，能够帮助学生养成梳理语篇脉络的良好阅读习惯。
【难度系数】
0.8
这是一篇介绍向日葵完整生长周期的说明文类阅读填空题，解题时首先要通读全文和所有备选选项，梳理出文章是按照向日葵从种子萌发、生根长茎、开花、结籽到最终价值的生长顺序展开的，接下来逐空定位前后文的线索，通过前后句的指代关系、内容顺承逻辑匹配对应选项：
1. 51空前句点明向日葵的生命从种子开始，后句直接讲把种子种进土壤浇水，中间缺少把种子培育成植株的前置准备步骤的衔接内容，匹配对应选项。
2. 52空前句提到向日葵长出土壤后，它的根会向下生长，接下来自然要承接介绍根的作用，匹配对应选项。
3. 53空前句提到植株出土30天后向日葵的花开始生长，接下来自然要描述向日葵花的外观特征，匹配对应选项。
4. 54空前句提到向日葵生命走到末期时种子会变干，后句提到鸟类会吃掉一部分种子，中间要衔接种子的不同去向，匹配对应选项。
5. 55空后句罗列了向日葵提供氧气、给人和动物提供食物、美化地球的诸多作用，前句需要总述向日葵的重要性，匹配对应选项。
【解析】
51. 前句引出向日葵的起点是种子，后句讲播种浇水的操作，B选项“要把那颗种子培育成植株，我们首先需要在花盆里装满土”完美衔接前后内容，顺承引出后续播种的步骤，符合语境。
52. 前句提到向日葵的根向下生长，D选项的They指代前文的roots，说明根可以从土壤中获取水分和养分帮助向日葵生长，承接根的生长内容介绍根的功能，逻辑通顺。
53. 前句提到向日葵的花开始生长，E选项“它又圆又平，长着明亮的黄色花瓣”是对向日葵花朵外观的描述，顺承开花的内容，衔接自然。
54. 前句提到向日葵的种子变干，C选项“其中一些种子掉落到土壤里，来年就会长成新的向日葵”介绍了干种子的其中一个去向，和后文“鸟吃一部分种子”的内容并列，符合行文逻辑。
55. 后句罗列了向日葵对地球生命的诸多益处，A选项“和其他植物一样，向日葵对地球上的生命来说非常重要”是总起句，引出后文的具体好处，契合语境。
【答案】
51.B 52.D 53.E 54.C 55.A
【知识点】
语篇逻辑衔接，说明文行文脉络
【点评】
本题围绕学生熟悉的向日葵生长过程展开，行文逻辑清晰，按照事物发展的先后顺序排布内容，解题门槛较低，重点考察学生抓取前后句指代、顺承逻辑的能力，能够帮助学生养成梳理语篇脉络的良好阅读习惯。
【难度系数】
0.8
