【推荐1】Young children across the globe enjoy playing games of hide and seek. For them there’s something highly exciting about _________ someone else’s glance and making oneself unable to be seen.

However, we all witness that preschool children are remarkably _________ at hiding. They often cover only their eyes with their hands, leaving the rest of their bodies _________.

For a long time, this ineffective hiding method was _________ as evidence that children are hopelessly “egocentric” (自我中心的) creatures. But our _________ research results in child developmental psychology _________ that idea. We brought young children aged 2—4 into our Minds in Development Lab at USC. Each _________ sat down with an adult who covered her own eyes or _________. We then asked the child if she could _________ or hear the adult. Surprisingly, children replied that they couldn’t. The same ____________ happened when the adult covered her own mouth: ____________ children said that they couldn’t ____________ to her.

A number of ____________ ruled out (排除) that the children misunderstood what they were being asked. The results were clear: Our young subjects ____________ the questions and knew ____________ what was asked of them. Their ____________ to the questions reflected their true ____________ that “I can see you only if you can see me, too.” They simply ____________ mutual (相互的) recognition and regard. Our ____________ suggest when a child “hides” by putting a blan over her head, it is not a result of egocentrism. In fact, children consider this method ____________ when others use it.

【推荐3】Face Blindness

When encountering new people, the first thing we notice about is their faces. The next time we see these people, we remember them because we remember their faces. This seems like a simple _________ . It turns out, however, that when scientists investigated the brain, they found that face recognition is rather complicated. The _________ of the brain that is responsible for face recognition seems to work differently for different people. Some people have great difficulty remembering and recognizing faces, while others almost never forget a face.

Normal babies are born with a _________ ability to recognize faces. In fact, their face recognition abilities are much better than their parents. For example, most adults can easily recognize faces that _________ their own. However, they cannot easily recognize faces of people of different races. At six months, babies are highly _________ at face recognition. But by nine months, their face-recognition skills are about the same as an adult’s.

_________ , some people are not born with this ability to recognize faces. The part of the brain that is responsible for face recognition doesn’t work for them. This _________ is called prosopagnosia, or “face blindness”. People with very serious face blindness cannot even recognize their own faces. In fact, people with this status can sometimes be frightened when they look in the mirror. They don’t recognize their own face, so for a second they are startled when they see this _________ face.

Face blindness is not always _________ . Some people only have difficulty recognizing faces of people they don’t know very well. Scientists believe up to 10 percent of the population may be affected by face blindness to some degree, __________ many people with mild face blindness might not even know they have it. They have no reason to know that they are different from anyone else __________ someone points it out.

Scientists became aware of another face-recognition case in the process of researching face blindness. They found that there are also “super recognizers” who remember every face they have ever seen. For these people, it is not __________ to forget faces. Super recognizer Jennifer Jarrett says, “It’s as if their faces are __________ in my brain.” Many super recognizers don’t just recognize faces they have seen before. They know exactly where they last saw that person.

Super recognizers don’t usually feel that they have a problem. Most people with __________ to serious face blindness, on the other hand, do. There is no cure for face blindness, therefore, for the time being, people with face blindness need to find simple techniques to __________ for their problem. They can try to recognize people by their hairstyle, their voice, or their glasses. Hopefully, in the future as scientists learn more about this situation, they will find a cure.

【推荐1】Leonardo da Vinci was born in 1452 in the town of Vinci, near Florence, Italy Most people know that Leonardo da Vinci was a great painter. ______, he was also a _______seulptor, musician, poet, scientist, architect, and engineer. His works had a strong influence on ________through out Europe, and his scientific ideas were centuries ahead of their time. One of his famous paintings is called Mona Lisa. He began painting the Mona Lisa in 1503. He was working ______ a special painting for a church at that time, _______the church painting was not______well. An Italian businessman asked da Vinci to paint a picture of his second _______. This is the woman who can be seen in the Mona Lisa.

All in all, the Mona Lisa is a very good example of da Vinci’s _______and it satisfied the husband. Da Vinci used _______and light in a clever _______in the painting. Da Vinci loved science and________. Right away a person can se that there is a lot of geometry(几何形状)in the Mona Lisa. The face of the Mona Lisa is made of many circles and round shapes like balls. Even her________can be seen as a small part of a large circle. The woman in the ______is sitting on a balcony, and ________can be seen behind her. Da Vinci loved to study rocks, so these can be seen________in his other paintings. The woman is sitting with her knees_______the side. Her head is turned to look out of the painting. Her hands are _______together in front of her. This way of sitting is now used by many models_______they are being painted. The Mona Lisa is a remarkable master.

Today we have very little of his work. Leonardo finished _______a few of his paintings. He left many unfinished ________he thought they were not perfect. No one in his life time knew how great Leonardo was. We now believe, however, that he is one of the cleverest men the world has ever known.

【推荐2】Remains of ancient civilization are places which were designed and built as a lasting tribute (致敬) to some individuals or events. By visiting these _______ monuments, you are sure to be amazed by how _______the ancient civilization that existed centuries before you was. Some of the facilities which could be dated back hundreds of years ago are still in use today. Besides, you will also _______ at the mysterious stories behind it. The Great Wall, _______, is probably the best-known monument of China, which consists of a network of walls and towers through which the attack warnings could be received within minutes._______ then had enough time to prepare. Estimates (估算) of the total length of the monument _______, depending on which sections are included and how they are measured. One of the _______ mysteries is that, although some of the wall is _______ in special radar images taken by satellites, astronauts have confirmed that the existing wall is not several thousand years old, nor is it, as many people had _______ visible to the human eye form outer space.

Even older than the Great Wall of China is the Great Pyramid (金字塔) of Giza. Over a 20-year period, thousands of workers made the vision become ________ with numerous blocks, each weighing more than two tons. It’s still a(n) ________ to modern people how ancient men handled________ of these giant stones in a time when cars or boats never existed some 4500 years ago. The pyramid served not only as a tomb for King Khufu, but also a place of ________ activity. The number of the God’s servants at that time showed the importance of such activities. After Khufu died, his body was carefully treated with various medicines and materials and was wrapped in order to be ________ for long. According to ancient Egyptian belief, the pyramid, where the mummy was placed, provided a place for the king to pass into the afterlife. Then his servants performed rituals (仪式) to bring ________ to the dead king’s soul, removing all the unrest and pain from his next life.

【推荐2】Last weekend, I had an opportunity to serve as a volunteer at a nursing home in another city. I don’t have a car and even the _____ train station is far away from my house.______, I wasn’t sure how to get there.

I posted a(n)____ for a ride on the ride share board. Soon an individual I’d never met ___________ that he’d be able to pick me up and drop me off at the station. He said he’d wait until my train arrived ____ he drove away. My heart _____ and the stress I’d been feeling disappeared _____ and thus our friendship began.

I ended up arriving at the nursing home in ______. The tiny team of servers there were ______ for the additional help. We all worked together as a team. I was glad to be a part of this and be of _____ to the elderly.

That evening when my new ______ dropped me off at the station, he ______ that it was in a deserted area. So he parked his car and said, “We will wait for the ______ to come together.” I couldn’t believe his _______.

With five minutes left before the train arrived, he ______ with me stories of his childhood. As a young boy, he ______ to sit near the edge of the train tracks, waiting ______ for the trains to rush by with all their force. That night he waited with me as my train______. It didn’t rush by with full force but I left that station _______ the full force of his kindness and generosity. People like him would always ______ me how to love and how to give.