题目内容：

    For people, many other animals, family matters. Consider how many jobs go to relatives. Or how an ant will cruelly attack intruder(入侵的)ants but rescue injured, closely related nest-mates. There are good evolutionary reasons to aid relatives, after all. Now, it seems, family feelings may stir in plants as well.

A Canadian biologist planted the seed of the idea more than a decade ago, but many plant biologists regarded it as heretical—plants lack the nervous systems that enable animals to recognize kin(家族), so how can they know their relatives? But with a series of recent findings, the belief that plants really do care for their most genetically close peers—in a quiet, planty way—is taking root. Some species control how far their roots spread, others change how many flowers they produce, and a few tilt(倾斜)or shift their leaves to minimize shading of neighboring plants, favoring related individuals.

“We need to recognize that plants not only sense whether it’s light or dark or if they’ve been touched, but also whom they are interacting with,” says Susan Dudley, a plant evolutionary ecologist, whose early plant kin recognition studies sparked the interest of many scientists.

Beyond broadening views of plant behavior, the new work may have a practical side. In September 2018, a team in China reported that rice planted with kin grows better, a finding that suggested family ties can be used to improve crop yields. “It seems anytime anyone looks for it, they find a kin effect,” says Andre Kessler, a chemical ecologist at Cornell University.

1.Why are ants mentioned in the first paragraph?

A. To show how cruel ants are to their enemies.

B. To lay foundation for the idea of plants’ family feelings.

C. To introduce the topic of how family matters to animals.

D. To explain why people usually give more jobs to their relatives.

2.Which of the following words has the closest meaning to the underlined word “heretical”?

A. Indescribable. B. Understandable. C. Impossible. D. Traditional.

3.What may be the plants’ way of expressing their care for relatives?

A. They stop producing flowers to avoid competition.

B. They spread their roots far so as to protect their peers.

C. They care for their injured peers by silently taking roots.

D. They move their leaves to share sunlight with their close peers.

4.What can be inferred from the text?

A. Different plants mustn’t be planted together.

B. Corn planted with corn can produce more than that with rice.

C. China has put the idea into wide practice and achieved great success.

D. The closer rice is planted with their relatives the more they will produce.