For Kew’s next goal—to collect a quarter of wild varieties by 2020—the botanists need 10 million pounds a year, or a further 100 million pounds on top of the 40 million they have already been granted．

　　71．What’s the final purpose of the Britain’s seed bank?

　　A．To collect enough money for the project．

　　B．To safeguard food crops．

　　C．To protect wild plants from extinction．

　　D．To help scientists study wild plants．

　　72．The wild banana seed in China is in danger because of _______．

　　A．the expanding of farming work

　　B．the climate change in this area

　　C．the large number of Asian elephants

　　D．human’s large consumption

　　73．We can learn from the passage that _______．

　　A．the seeds in the bank can be used now and then all over the world

　　B．India and Brazil haven’t joined in the Seed Bank Project at present

　　C．there is only one seed bank in the world at present

　　D．the wild plants in places like India and China will never die out

　　74．What does the underlined word “it” in paragraph 7 refer to?

　　A．The extinction of plant species．

　　B．Kew Gardens’ next goal．

　　C．Britain’s seed bank．

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