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Travelers to the Arctic islands of Svalb...

    Travelers to the Arctic islands of Svalbard would find a rough, ice-hardened land, sheltering polar bears in its frozen landscapes. This group of Norwegian islands is the land of the “midnight sun” with almost 24 hours of sunlight during the winter months. It is also home to one of the most important storage facilities in world farming — the Svalbard Global Seed Vault.

The seed vault was opened in 2008 in an effort to safeguard the world’s food supply for future generations. Svalbard is the perfect frozen environment to house seed samples, set inside an Arctic mountain at 130 meters above sea level, so it is unlikely to be flooded. Low humidity , geological stability, and the surrounding permafrost can keep seed-keeping places cool, dry, and usable for centuries.

Seed gene banks from around the world have sent food crops seeds for safety in case a natural disaster or environmental damage destroys existing supplies. Worldwide there are more than 1.700 seed gene banks that store seeds locally and many choose to send back-up samples to facilities like the Svalbard’s vault.

There is space in the global vault for 4.5 million different crop varieties with each variety storing on average 500 seeds, meaning it can house 2.5 billon seeds. There are around one million seed samples from 80 institutes in the vault at present so there is a lot of spare capacity for the vegetables, grains, peas and beans that are banked annually. On the top of that, there are rare flowers from the Myanmar rain forests.

The largest numbers of samples in the vault are varieties of rice and wheat. The seed vault has been listed as one of the most influential projects of the past 50 years for its efforts. Seeds themselves are not kept for farmers or gardeners to grow produce. Their true value is as a genetic resource in plant upbringing to create new crop varieties.

1.What makes Svalbard a global seed vault?

A.Its eco-friendly tourism. B.Its rich supplies of food.

C.Its favorable environment. D.Its strong sunlight in winter.

2.Why do many seed gene banks send food crop seeds to the Svalbard’s vault?

A.To protect them from climate changes. B.To exchange them for new crop seeds.

C.To make sure of the safety of food supplies. D.To compare them with new crop varieties.

3.What can be inferred about the Svalbard’s vault from Paragraph 4?

A.It values plant different types of plant. B.It has little space for newcomers.

C.It is costly for most institutes. D.It sees a big increase in seed samples every year.

4.What is the author’s purpose in writing the text?

A.To explain how to store seeds safely. B.To introduce an influential seed vault.

C.To seek sponsors for world seed vaults. D.To call on seed institutes to work together.

 

1.C 2.C 3.A 4.B 【解析】 这是一篇说明文。文章主要介绍了世界农业中最重要的储藏设施之一——Svalbard全球种子保险库该,种子库于2008年开放,旨在为子孙后代保障世界粮食供应。良好的环境让Svalbard成为全球种子保险库。该种子库被列为过去50年来最具影响力的项目之一。 1. 细节理解题。根据第二段中Svalbard is the perfect frozen environment to house seed samples, set inside an Arctic mountain at 130 meters above sea level, so it is unlikely to be flooded. Low humidity (湿度), geological stability, and the surrounding permafrost (永冻层) can keep seed-keeping places cool, dry, and usable for centuries.可知Svalbard是存放种子样本的绝佳冰冻环境,它位于海拔130米的北极山脉中,因此不太可能被淹没。低湿度、地质稳定性和周围的永久冻土层可以使种子保存场所凉爽、干燥,并且可以使用几个世纪。由此可知,是良好的环境让Svalbard成为全球种子保险库。故选C。 2. 细节理解题。根据第三段中Seed gene banks from around the world have sent food crops seeds for safety in case a natural disaster or environmental damage destroys existing supplies.可知,来自世界各地的种子基因库纷纷送来粮食作物种子,以防自然灾害或环境破坏破坏现有供应时的安全。由此可知,许多种子基因库把粮食作物种子送到Svalbard的种子保险库,是为了确保食品供应的安全。故选C。 3. 推理判断题。根据第四段中There is space in the global vault for 4.5 million different crop varieties with each variety storing on average 500 seeds, meaning it can house 2.5 billon seeds. There are around one million seed samples from 80 institutes in the vault at present so there is a lot of spare capacity for the vegetables, grains, peas and beans that are banked annually.可知,全球种子库有450万种不同作物的空间,每个品种平均能储存500颗种子,这意味着它能储存25亿颗种子。目前,这个种子库中有来自80个研究所的大约100万份种子样本,因此每年储存的蔬菜、谷物、豌豆和豆类有很大的备用容量。由此可推知,Svalbard的种子保险库重视不同类型的植物。故选A。 4. 推理判断题。根据第一段中It is also home to one of the most important storage facilities in world farming-the Svalbard Global Seed Vault.可知,它还是世界农业中最重要的储藏设施之一——Svalbard全球种子保险库的所在地。结合文章主要介绍了世界农业中最重要的储藏设施之一——Svalbard全球种子保险库,良好的环境让Svalbard成为全球种子保险库,该种子库被列为过去50年来最具影响力的项目之一。由此可推知,作者写这篇文章的目的是介绍一个有影响力的种子保险库。故选B。
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