People from __________ are taught to avoid eye contact with elders, teachers, and other people with status as a sign of respect.
A、North America
B、Latin America
C、the Mediterranean
D、North Europe
A、North America
B、Latin America
C、the Mediterranean
D、North Europe
What is it about a dog&39;s gaze that makes it so charming? A new study by Japanese scientist Miho Nagasawa seems to have found the answer, and it has to do with something called the cuddle(爱抚)chemical.
The cuddle chemical has another, more scientific name: oxytocin. Oxytocin is a substance in the blood that encourages bonding. Levels of oxytocin increase, for example, when a mother feeds her newborn baby. According to Nagasawa&39;s study, the same is true when we look deeply into the eyes of a dog.
The results of this study can tell us a lot about the history of the bond between humans and dogs. It all started somewhere tens of thousands of years ago. Scientists believe that wolves used to follow humans who were hunting large animals. The wolves would eat the food left behind by the humans.
Humans realized that they could use the wolves to help with the hunt, and eventually both species began to work together toward survival.
Over time, the wolves that interacted with the humans began to change. They became more loyal to their human partners. The wolves and humans started to depend on each other and bond with each other. These changes are what caused some of the wolves to turn into what we now know as dogs, a new specie^ evolved to better survive in their environment.
This process depended a great deal on the bond humans formed with them. And according to Nagasawa&39;s study, this bond was formed with the help of oxytocin, the cuddle chemical.
11. What do we know about oxytocin?
A.It regulates blood flow
B.It promotes bonding
C.It is in the human gene
D.It is good for health
When we look deeply into a dog's eyes, the levels of our oxytocin ____.A.reduce over time
B.go either up or down
C.are on the rise
D.remain unchanged
At the beginning wolves followed humans to ____.A.eat the food left by humans
B.guard against large animals
C.take humans for food
D.hunt large animals together
Over time some wolves turned into dogs ____.A.due to their loyalty
B.due to the changing environment
C.for better survival
D.for better cooperation
What does Nagasawa9s study aim to do?A.Explore the role of human-wolf partnership
B.Show the characteristics of the cuddle chemical
C.Explain the bond between humans and dogs
D.Understand the evolution of species
阅读理解。 |
American Youth Millions of words have been written about young people in the United States. There are reasons for this great interest in the ideas, feelings, and actions of youth. Today there are about seven million Americans in colleges and universities. Young persons under twenty- fivemake upnearly half of the American population. Many of these will soon be in charge of the nation. Naturally their ideas are important to everyone in the country, and it is necessary for older people to understand what they think and feel. College students today have strong opinions about right and wrong. They are deeply interested in making a better life for all people, especially for those who have not been given a fair chance before now. They see much that is wrong in the lives of their parents. It is hard for them to see what is right and good in the older ways. As a result, there is often trouble in American families. Your country may be meeting such problems, too. |
1. The meaning of the underlined phrase "make up" is _____. |
A. 编造 B. 构成 C. 补偿 D. 化妆 |
2. Which of the statements would the writer probably agree? |
A. It is unfortunate that so much attention is being paid to young people in the United States. B. Older people should try to understand the thoughts and feelings of youth. C. Many problems today are caused by parents who do not control their children. D. The young people of today are mainly interested in enjoying life. |
3. The last sentence says, "Your country may be meeting such problems, too." The phrase "such problems" refers most directly to _____. |
A. crime caused by the use of drugs B. the newer sexual freedom of youth C. young people's dislike of hard work D. disagreements between young people and their parents |
A、lend support to the invisible hand by maintaining property rights and political stability.
B、subsidize key industries.
C、limit foreign investment to industries that don't already exist in the country.
D、impose trade restrictions to protect the interests of domestic producers and consumers.
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!