C 学科融合——种子银行
Did you know that a seed(种子) can have its own “ID card”? The “card” shows that the seed is at the national crop germplasm bank(国家作物种质库) in Beijing, known as China’s seed bank.
A seed’s journey to the seed bank starts with a census(普查). China’s latest census of agricultural(农业的) seeds started in March 2021 and ended in January 2024, reported CCTV News. Workers collected more than 139,000 new seeds from all over the country. They then arrived at the seed bank.
When seeds first come in, they each get a number for their “physical test”. For example, workers put all kinds of Job’s tears(薏苡) from different farms together. Then they put them into groups according to the seeds’ look or taste. Next, workers check the seeds to make sure they’re healthy and all the unhealthy ones are given up.
With the bad seeds gone, researchers then test the good ones to see how likely they are to grow. The seed bank has a quick, smart way of doing this: Workers test the seeds and use the information they get to predict(预测) their growth. Workers dry and weigh the best seeds after several tests. Then, they’re stored in a super cold icebox at $-18°\mathrm{C}$. China’s seed bank keeps all the seed information safe and helps people learn about them. This can help develop new plants that can grow better and deal well with hard environments, ensuring the food safety of the country.
()17. How does the writer lead in the topic in the first paragraph?
A. By giving an example.
B. By telling a story.
C. By asking a question.
D. By giving facts.
()18. How long did China’s latest research of agricultural seeds last according to Paragraph 2?
A. About one year.
B. About two years.
C. About three years.
D. About four years.
()19. What’s the correct order of a seed that goes through in the seed bank according to the text?
a. be given a number
b. be checked
c. be put into groups
d. be stored in a cold icebox
e. be dried and weighed
A. a—b—c—d—e
B. a—c—b—d—e
C. a—d—b—c—e
D. a—c—b—e—d
()20. What’s the main purpose of China’s seed bank?
A. To collect as many seeds as possible.
B. To keep seed information safe and help develop new plants.
C. To test how seeds grow in different environments.
D. To show the variety of agricultural seeds in China.

17.C 18.C 19.D 20.B
C篇
文章大意:中国国家作物种质库被称为“中国种子银行”,种子会先通过全国农业种子普查被收集。入库后,种子需经历编号、分组、健康检查、发芽潜力测试、干燥称重等流程,最终储存在超低温冰箱中。种质库会妥善保存种子信息,助力培育更优良、耐恶劣环境的新植物,保障国家粮食安全。
第19题:排序题。根据文章第三段“When seeds first come in, they each get a number”(a)→“Then they put them into groups”(c)→“Next, workers check the seeds”(b);第四段“Workers dry and weigh the best seeds after several tests. Then, they're stored in a super cold icebox”(e→d),按原文描述的流程,顺序为“编号→分组→检查→干燥称重→冷藏储存”,即a—c—b—e—d,故选D。
第20题:主旨大意题。根据文章第四段“China's seed bank keeps all the seed information safe and helps people learn about them. This can help develop new plants that can grow better and deal well with hard environments, ensuring the food safety of the country”原文明确种子库的核心作用是“保存种子信息安全”和“帮助培育更优良的新植物”,A是收集行为而非核心目的,C是中间测试环节,D与文章“保护作物种质”的初衷相反,均不符合题意。故选B。

【分析】
先通读全文，明确文章围绕中国种子银行展开。17题需定位第一段开头的引入方式，通过问句判断引入方法；18题查找第二段中种子普查的时间起止，计算时长；19题按原文描述的种子入库流程逐一对应步骤排序；20题定位第四段关于种子库目的的表述，排除干扰项选出主旨。
【解析】
17题：第一段以“Did you know that a seed can have its own ‘ID card’?”的问句开头，属于提问式引入话题，对应选项C。
18题：第二段提到中国最新农业种子普查2021年3月开始，2024年1月结束，时长约三年，对应选项C。
19题：根据原文流程：种子入库先编号（a）→按外观/味道分组（c）→检查健康（b）→干燥称重（e）→储存于超低温冰箱（d），顺序为a—c—b—e—d，对应选项D。
20题：第四段明确说明种子库的核心目的是“保存所有种子信息安全，帮助培育能更好生长、适应恶劣环境的新植物，保障国家粮食安全”，对应选项B。
【答案】
17.C 18.C 19.D 20.B
【知识点】
英语阅读理解 细节理解题 主旨大意题
【点评】
本题为英语阅读理解题，围绕“中国种子银行”主题展开，涵盖细节查找、排序、主旨概括等题型，需学生快速定位原文信息，理清语篇逻辑，难度适中，能有效考察学生的信息提取与语篇理解能力。
【难度系数】
0.6