题目内容：

    Feelingsoftenrun high where insects are concerned,with many people even sick when seeing them, let alone touch or swallow them.And yet insects present a huge nutritional opportunity as an increasing globalpopulation seeks more sources of food and feed.

Insects have generally high levels of animal protein and key micronutrients with lower environmentalfootprints than traditional alternatives,and they can be raised on leftovers.But cultural,social and economicproblems remain,reports an article published today in Nutrition Bulletin.

“Insects present a nutritional opportunity,but it is unclear how their nutritional quality is influenced bywhat they are fed,”says Darja Dobermann,a researcher at the University of Nottingham.“In idealconditions,insects have a smaller environmental impact than most traditional western forms of animal protein; less known is how to raise insect production while maintaining these environmental benefits.”

“Studies overall show that insects could make valuable economic and nutritional contributions to the foodor feed systems,but there are no clear regulations in place to bring insects into such supply systems withoutthem turning into a more expensive version of poultry（家禽）for food,” says Dobermann.

The article highlights how insects have been a source of food for hundreds of years in more than 100countries with over 2,000 species that can be eaten; in central Africa,up to 50% of dietary protein has comefrom insects,with their market value higher than many alternative sources of animal protein.

Insects need to be large enough to make the effort of catching them worthwhile and easy to locate,preferably in predictably large quantities.They are consumed at various life stages,as raw,fried,boiled, roasted or ground food.

1.Which of the following is the advantage of raising insects for food?

A. It will offer people work opportunities.

B. It is environmentally friendly.

C. It will replace traditional food.

D. It will result in less leftovers

2.What can be inferred from Dobermann’s words?

A. Raising insects for food has become popular.

B. Raising insects can’t solve food problems.

C. More should be done to raise insects for food.

D. More money can be made by raising insects.

3.What does the underlined word in paragraph 4 stand for?

A. Insects. B. Regulations.

C. Feed systems. D. Supply systems.

4.Which is the possible title of this passage?

A. How to Raise Insects B. Raising Insects for Money

C. Insects Seem No Longer Ugly D. A New Source of Food