题型:阅读选择 题类:常考题 难易度:普通
江苏省南通市启秀中学2020-2021学年九年级下学期英语开学考试试卷
Grandparents are respected in many human societies. But telling stories about old times and overfeeding grandchildren seem like human qualities. Are these classic grandparent behaviors really limited to humans?
Do any animals know their grandparents the way people do?
For most species on Earth, the answer is certainly " No" . " Usually, there aren't grandparents around anymore when an animal is born," said Mirkka Lahdenpera, a biologist at the University of Turku in Finland. " Even if an animal's life span does overlap (重叠) with its grandparents', most species spread out to avoid competing for resources, so the chance of running into a grandparent is slim."
But there are a few clear exceptions, primarily among mammals (哺乳动物) that live in close social groups. In troops of langur monkeys in India, older females lived together with their daughters and grandchildren. The grandmother langurs defend the group's babies against attacks and even give their own grandchildren special treatment.
Many whale species, too, travel in family groups that include both grandmothers and grandchildren.
Elephant herds are also famously matriarchal. They are led by a grandmother, who can live to around 80 years old, and are generally made up of her daughters and their young. The females in a herd form close bonds and work together to raise their young.
Lahdenper found that the babies of young mothers were eight times more likely to survive if their grandmothers lived near them than if they didn't. When the young mothers were older and more experienced at raising babies, this beneficial grandmother effect disappeared even if the actual grandmothers were still around.
Indeed, most evidence for the benefits of grand parenting comes from mammals. But in 2010, researchers found that in troops of insects called gall-forming aphids, older females defend their relatives after they've stopped reproducing (繁殖).
And what about grandfathers? Studies of humans in recent decades have shown that a living grandfather can improve a person's mental health and other indicators of well-being. But there's no evidence of that in the animal kingdom. Male animals rarely socialize with their own children, let alone any grandchildren.
Mr. Wang is a teacher in our school. He teaches us English. He walks to work every day.
Family name | Wang |
ID | 340104194808081513 |
Phone number | 0551-3456789 |
Address | Room 203, Xiangyang Road |
{#blank#}1{#/blank#}George is a college student. He needs to write about Children's Day in different Asian countries. {#blank#}2{#/blank#}Jack, studying in South Korea, wants to take part in an interesting but " dirty" festival in July with his friends. {#blank#}3{#/blank#}Jacob, a university student who loves playing with water. He hopes to take part in a festival that is especially about water. {#blank#}4{#/blank#} Eric loves Chinese poems and poets (诗人) . He hears that some festivals are about famous poets. {#blank#}5{#/blank#}Mia likes delicious food very much. She wants to enjoy an American food festival with her cousin when they are free. | A. Boryeong, South Korea, holds a mud(泥浆) festival every July. During the festival, people can go into plastic pools, play or get their bodies with mud. B. The Taste of New York appeared in 1980. Some restaurant owners suggested the idea of a food festival. Jane Byrne, the leader of New York, agreed. And the city has been hosting the event ever since. C. The Dragon Boat Festival is a day to remember Qu Yuan, a great Chinese poet. On this day, people usually eat zongzi, hold dragon boat races and drink a kind of special wine. D. The Mid- autumn Day is a festival to get together. During the festival, people usually eat moon cakes, get together and enjoy the full moon with their family. E. Songkran Festival, in Thailand, is a very special festival for all the people. People splash (泼) water over each other. Everyone gets very wet, but they are very happy. F. Every August, Spain, celebrates a food festival. At that time, the world's biggest food fight begins. Many people take part in the event, throwing over a hundred tons of tomatoes at each other. G. If you go to Japan in early May, you will see colourful flags in the sky. The flags fly to celebrate Children's Day on May 5th. |
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