When the Svalbard Global Seed Vault opened in 2008，it became an icon of the vital mission of gene banks to preserve crop diversity.Now，a new gene bank in the tropics could make a similar mark，with an equally distinctive design and an urgent research agenda.Last week，researchers and officials dedicated a ＄17 million gene bank facility in Palmira，Colombia. 'It will provide an expanded home for the world's largest collection of beans，cassava，and tropical forage grasses （飼料草種），which breeders use to create better performing and climate-resistant crops.
Theo Hintum，head of the plant gene bank at Wageningen University &Research's Centre for Genetic Resources，says： "The construction of the new gene bank shows that we as a world community are willing to invest in conserving genetic diversity and keeping it available for future generations. "
The new building，called Future Seeds，replaces a decades-old facility in Cali，Colombia，which was once a meat quality lab.It boosts storage capacity for the gene bank's current target plants by nearly one-third，and ultimately could store additional kinds of crops as well.It now holds about 67，000 samples of crop varieties or populations，many of which no longer cultivated.Most of these are stored as seeds at-20°C，including nearly 38，000 samples of beans and almost 23，000 samples of tropical forage legumes （飼料豆）and grasses that are grown on farms.
Theo Hintum hopes the building，which will also be open to visitors from schools and the general public，will also inspire the next generation of plant breeders and gene bank curators.He also adds： "It looks absolutely beautiful.That could really make people appreciate that this is something valuable. "
（1）What's the purpose of the newly-opened gene bank？ CC
A．To raise money for preserving crop diversity.
B．To create an icon of.conserving genetic diversity.
C．To create better performing and climate-resistant-crops.
D．To raise public awareness of conserving crop diversity.
（2）What attitude does Theo van Hintum hold to the new gene bank？ BB
A．Neutral.
B．Favorable.
C．Indifferent.
D．Opposed.
（3）Which description about the newly-opened gene bank is true according to the passage？ DD
A．It will only be accessible to the professionals.
B．6，7000 samples here are stored as seeds at-20℃.
C．It's built on what was once a meat process factory.
D．It promotes the storage capacity for the present target plants.
（4）What's the main idea of the passage？ AA
A．A brief introduction of a crop gene bank.
B．The solution to the loss of gene diversity.
C．A new research on preserving gene diversity.
D．The significance of crop diversity conservation.
【答案】C；B；D；A
【解答】
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發(fā)布：2024/4/20 14:35:0組卷：2引用：1難度：0.7
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