A.Gotobed.(正确答案) |
B.Onions. |
C.Nutter. |
D.Hardmeat. |
A.They originated in the UK. |
B.They mean silly people. |
C.They show the occupations.(正确答案) |
D.They date from the 13th century. |
A.A family of butchers. |
B.A place famous for hard meat. |
C.A village without a spellchecker. |
D.An incorrectly-spelt village name.(正确答案) | fancybox
Australian magpies(喜鹊) are common in Australia, loved and feared in equal measure. The fear aris from the fact that nesting females aggressively dive at animals — including, or perhaps especially, humans — often drawing blood. The love comes from the fact that they are simply everywhere, easy to identify, and possd of a song that has come to reprent the sound of nature.(正确答案) |
And also, they em rather clever. Now, rearch by zoologists at the University of Western Australia has corroborated this — but their levels of intelligence are dependent on the size of the group they belong to. |
To reach this conclusion, the Australian scientists examined 56 birds from 14 groups of wild magpies living in the suburbs of Western Australia’s capital city, Perth. The groups ranged between 3 and 12 individuals. Each magpie — tested parately to avoid the risk of it getting help from its mates — was put through four tasks that taxed its cognitive(认知的) abilities. The included finding food hidden in a transparent container, finding food hidden in differently coloured containers, and a memory test involving finding hidden food. Adult and young birds were tested repeatedly and the results were clear. The birds that lived in large groups were quicker to master the tasks than tho that lived in smaller ones. The difference between intelligent big group members and less intelligent little group members appeared very early in birds’ lives. |
In a paper published in the journal Nature, lead author Benjamin Ashton and his colleagues report that birds living in large groups “show incread cognitive performance”. Moreover, this “general intelligence factor” is strongly linked to reproductive(生殖的) success in females. |
Ashton suggests that the findings indicate the evolution of intelligence is influenced by pressures prent in complex social groups. “Our results suggest that the social environment plays a key role in the development of cognition,” he says. |
A.Frightened. |
B.Loving. |
C.Mixed.(正确答案) |
D.Tolerant. |
A.Assd. |
rackham B.Confirmed.(正确答案) |
C.Disapproved. |
D.Doubted. |
A.They were allowed to ek help. |
install是什么意思B.They were put in containers. |
C.They were divided into some groups. |
D.They were studied individually.(正确答案) |
A.Magpies Seem to Be More Social Birds |
B.Magpies in Small Groups Often Perform Better |
C.Large-group Living Increas Magpies’ Intelligence(正确答案) |
D.Cognitive Levels Affect Magpies’ Reproductive Success |
By this time, Allyson, my then eight-year-old, had joined us, listening to every word. Neither of my daughters interrupted as I finished my heartfelt speech, filled with motherly wisdom. Then, as I was telling each of them what I thought right, Allyson’s real words of wisdom came about. “Mom, ” she said. “I was just thinking. Maybe Abby is suppod to be that girl’s friend so that she can bear her. Maybe Abby can let that girl e forgiveness and goodness through her. ” I didn’t expect to become a student. At that moment, I realized that even though I was working hard to wear “Mother’s Hat” , the “hat” certainly didn’t make me right.(正确答案) |
In fact, I wanted to pull that hat over my face and hide. On the other hand, it did comfort and surpri me. “Yes, that’s a good point, ” I commented, forcing a half smile at my girls. “Abby, you handle this situation the way you think is right. ” “OK, ” she said, giving me a quick hug before walking out of the door and off to school. “Bye, Mom! ” Allyson called, following her big sister out the door. |
I was left alone. In tho following quiet moments I was lost in thought and thought about my two remarkable daughters, who are little in height but big in heart as well as a lesson — sometimes our children have great lessons to teach us, if we only listen. |
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