40. Why is the Global Seed Vault located in a far-northern Norwegian island?
A. Because it is a place to keep everything safe.
B. Because half the seed banks in developing countries are at risk.
C. Because the climate there is fit for keeping seeds for a long time.
D. Because it is the best place to fight against agricultural disasters.
41. The Greenbelt Native Plant Center in New York City is unusual because _____.
A. it is an old farm in a big city.
B. it is the largest seed company in the world.
C. it is set up to save the threatened plants and trees.
D. it stores the seeds of most kinds of plants in New York City.
42. To store the seeds well and last as long as possible, the most important thing is to _____.
A. collect seeds at the right time.
B. store them at a constant temperature.
C. dry them in specially designed rooms.
D. make it enter a state of suspended animation.
43. The passage is mainly about ______.
A. Global Seed Vault.
B. saving seeds for the future.
C. the challenges of collecting seeds for storage.
D. the efforts made by Greenbelt Center to save plants.
【参考答案】40—43、CCAB
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