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.
【C8】

选项 A、harmful
B、careful
C、helpful
D、hopeful

答案A

解析本句以But开始，表明与前一句构成转折关系。前一句说大豆和鱼粉成为欧洲动物饲料的主要原料，可知本句说明的是大豆和鱼粉作为饲料原料的劣势，并且通过and构成的并列关系可以看出， “can be________to the environment”与“生产大豆和鱼粉需要大量空间”一样都是其不足之处，故这里应指其对环境有不好的影响，因此选择harmful(有害的)，答案为A项。B项careful意为“小心的”，C项helpful意为“有帮助的”，D项hopeful意为“有希望的”，均为肯定意义的词语，故排除。

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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

考研英语二

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