Travelers to the Arctic islands of Svalbard would find a rough，ice-hardened land, sheltering polar b
英语试题 07-26
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（场所）in world farming-the Svalbard Global Seed Vault（保险库）.
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（湿度）, geological stability，and the surrounding permafrost（永冻层）can keep seed-keeping places cool, dry, and usable for centuries.
Seed gene barks from around the world have sent foodcropsesa5afasafe（安全保障）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（容量）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 sed 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.
28．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.
29．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.
30．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.
31．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（赞助者）for world seed vaults.
D．To call on seed institutes to work together.
答案
28.C 29.C 30.A 31.B
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（湿度）, geological stability，and the surrounding permafrost（永冻层）can keep seed-keeping places cool, dry, and usable for centuries.
Seed gene barks from around the world have sent foodcropsesa5afasafe（安全保障）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（容量）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 sed 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.
28．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.
29．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.
30．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.
31．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（赞助者）for world seed vaults.
D．To call on seed institutes to work together.
答案
28.C 29.C 30.A 31.B
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