Which animals are smart? Your answer may be dogs, monkeys or elephants. Now we can put one more animal into the list: sheep.
Scientists from Cambridge University said that they can teach sheep to tell familiar (熟悉的)human faces from other unfamiliar ones.
Before testing, scientists let the sheep take a look at pictures of four famous people, such as Barack Obama and British actress Emma Watson. Then the sheep went into a room with two computer screens. Each screen showed a human face. One screen showed a famous person and the other screen showed a common person。The sheep would always walk to the screen with the face of famous persons.
Then, the scientists wanted to know the sheep's ability to recognize(认出) them from a photo. They put their own photos on screens along with some pictures of unfamiliar(不熟悉的) faces. Not surprisingly, the sheep could tell the scientists from others.
After noticing the animals' ability to recognize people, scientists gave them a new job. They wanted to see the farm animals' ability to recognize the same person if the picture only showed half of the person's face or just one side of a person. The animals were still able to recognize them, though they were a little slower to recognize the pictures than before.
The results show that the animals' face-recognition( 面部识别) abilities are similar to those of monkeys and humans. Face recognition is a difficult job. But sheep have big brains(大脑). When they see other sheep, they can also recognize one another.
The scientists said it might be interesting in the future 10 find out whether sheep can recognize different human facial expressions(表情)
Unusual smart animal-the sheep | |
Scientific 1. | ★Sheep's face-recognition abilities were similar to those of monkeys and humans. |
★Sheep's big brain2.in the face recognition job. | |
A set of tests that 3.got harder | ★To tell famous persons from common persons The sheep were asked to choose between photos of famous and common persons. And they always walked to the photos of famous persons. |
★To recognize the persons around them Scientists put their own pictures into the tests. And the sheep could tell them from others as 4. | |
★To recognize the same person from different sides The sheep were shown only half or one side of a person's face. And they spent a 5.to finish the job successfully. | |
★To recognize human facial expressions The interesting test would be done in the future. |
“Feel bored staying at home? So does the virus.1. "This is how Zhang Wenhong advised people to stay indoors during the outbreak of COVID-19(新冠肺炎)，As the head of the Shanghai expert team, Zhang has become an internet celebrity (名人) due to his funny and straightforward way of talking.
He first caught people's attention in late January, when he asked the members of the Communist Party （共产党员) in his department to go to the frontline hospitals. “When becoming Party members, we vowed(发誓) that we would always put people's interests first,” Zhang said. “This is the moment we live up to the vow.2.No bargaining(讨价还价).” His determination and the way of speaking quickly won praise across the country.3.“I do it in person because I need to encourage other coworkers,” he told the media.
Zhang believes in the traditional Chinese idea that “the best doctors prevent the disease” .That's why he spares no efforts in spreading scientific knowledge on how to prevent the epidemic(流行病)4.He and his team also update their WeChat account every day with timely analyses(分析) of the epidemic. One of his articles got more than 10 million hits. But Zhang might not care about his sudden fame. When asked about his feelings after becoming famous, Zhang told the media, “5.Pay attention to Wuhan. I'm not a celebrity. I'm a doctor.”
A.Don't pay attention to me.
B.Fighting the virus with humor.
C.All Party members must rush to the frontlines.
D.If you stay longer, the virus will be bored to death.
E.His sense of humor has made it easier for the knowledge to reach the public.
F.Meanwhile, as a Party member himself, Zhang set an example by checking on patients every day.
Have you ever r__________talking back to your parents in a rude way?
We can't a__________to upset such an important customer.
Amy is an i__________to all who knows her. She built herself a house out of rubbish.
It has not been rainy for long. We can see the b__________of the river now.
