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  3. First it was pets, then fish. Now it’s poultry and pigs. The【C1】________of animals allowed to feed on insects is growing. A new

First it was pets, then fish. Now it’s poultry and pigs. The【C1】________of animals allowed to feed on insects is growing. A new

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问题     First it was pets, then fish. Now it’s poultry and pigs. The【C1】________of animals allowed to feed on insects is growing. A new EU law【C2】________the use of insect protein in poultry and pig feed came into【C3】________earlier this month, which is a significant【C4】________for an industry keen to【C5】________ its way into the animal-feed business.
    【C6】________a ban on processed animal protein was imposed in 2001 in the【C7】________of the "mad cow" crisis, soy and fishmeal have become the bedrock of animal feed in Europe. But their production needs lots of space and can be【C8】________to the environment, so feed manufacturers are looking for【C9】________.
    Insects are just the ticket. They are reared in vertical farms that require little land or water, and they can be fed on agricultural by-products or food waste【C10】________rotting fruit and vegetables. They’re also a natural【C11】________. Most wild fish, birds and pigs eat insects.
    The one thing going【C12】________them is price: insect protein is two to three times more expensive than fishmeal, and many times pricier than soy. Scaling up production may help close the gap. Rabobank, a Dutch lender,【C13】________that global insect production will reach 500,000 tonnes a year by 2030, and that prices will tumble.
    Insect companies have【C14】________hard on their pitch. Research suggests insects may be more than mere feed,【C15】________growth rates and immune systems as well as filling stomachs. They also offer the【C16】________of a green, local protein.
    Poultry and pig feed are by far the largest animal-feed markets, but they’re more【C17】________ than food for pets or fish. For that reason, says Antoine Hubert, CEO of Ynsect, a mealworm firm, insect protein will probably be used only in premium meat at first.
    This year the European Food Safety Agency has ruled that three【C18】________of insects (yellow mealworm, locusts and house crickets) are【C19】________for humans to eat as well.【C20】________. however, people seem less keen on the idea than chickens and pigs.
【C2】
选项 A、prohibiting
B、discussing
C、authorizing
D、restricting
答案C
解析 本题空格所在部分意思为“一项欧盟新法律________在家禽和猪饲料中使用昆虫蛋白”。本段第二句已提到“现在是家禽和猪(允许食用昆虫饲料)”，二者意义是一致的，可见此处指，欧盟新法律“通过或批准”在家禽和猪饲料中使用昆虫蛋白。四个选项中，符合条件的是C项authorizing(批准；授权)，故为答案。A项prohibiting意为“禁止”，D项restricting意为“限制”，前面已提到现在允许家禽和猪食用昆虫饲料，这里“禁止”或“限制”与前文相矛盾，故排除这两项。同理，既然现在已允许家禽和猪食用昆虫饲料，也就没有“商讨”(discussing)的必要了，故排除B项。
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