阅读下列材料，在空白处填入适当的内容(一个单词)或括号内单词的正确形式。
Researchers in China have explained why basking (沐浴)in the sun can make people smart. It is known to everybody that the sun is very important and nothing in the world can survive 1.it. Science has already proved that sunny days can help 2.(strong) a person’s mood, intelligence and memory.
A team at the University of Science and Technology of China in Hefei, Anhui province discovers that UV light, an element of sunshine, makes a change in the brain that can make 3.(we) smarter.
Tests on mice show that moods and learning can be improved due to enough exposure to UV light, according to Xiong Wei, 4.professor at the university 's School of Life Sciences who led the study. He says that mice 5.(expose) to UV light, which is equal to 20 to 30 minutes of midday sun in Florida in summer. Exposure to UV light 6.(increase) the level of a substance in blood, which reacts with brain cells 7.(promote) functions such as learning and memory. Xiong says previous research has 8.(actual) found that this substance will change in our body and do good to our 9.(fit), but this is the first time that it has been showed that the process can happen in the brain, which is a finding 10.surprises the team.
In his second grade, my son has learned to read the saying in English: Open my lips to good words, and open my heart to _______.
At any age, the _______ of the spoken word can’t be overstated. And yet sometimes the _______ of the words that pass our lips is less than what we hope for or _______ from ourselves. When stress or worry _______ on us, we can find ourselves saying things we don’t _______. We often use our remarkable power of speech in _______ ways.
To keep my language in check, I _______ a simple, elegant technique I also _______ from my son—the idea that we should stop and “THINK” to make sure our ________ are true, hopeful, important, necessary and kind before we ________. In the speedy pace of everyday life, it can be ________ to examine each word choice this closely. However, ________ over time, THINK can become an automatic guide that ________ drives our words in a positive direction.
It’s the combination of the THINK ________ that strikes me most. ________ is high value, but remember that true words can save us from being directly ________ to someone we care about. Information can be important, but it’s not helpful in the moment to someone who is ________, it’s not worth saying aloud. ________ is powerful, but if you can’t truthfully say something kind in a heated moment, it’s better to take a ________ from speaking.
It’s an invitation to think before we speak, and to make our words wise, positive statements for all to hear.
1.A.interest B.love C.respect D.sorrow
2.A.power B.faith C.touch D.support
3.A.condition B.quality C.nature D.talent
4.A.expect B.accept C.share D.require
5.A.bases B.counts C.weighs D.lives
6.A.decide B.believe C.need D.mean
7.A.usual B.strange C.negative D.reasonable
8.A.hold on B.aim at C.search for D.turn to
9.A.borrowed B.learned C.separated D.freed
10.A.analyses B.instructions C.words D.images
11.A.speak B.tell C.explain D.act
12.A.relaxing B.exciting C.boring D.hard
13.A.designed B.practised C.answered D.explored
14.A.highly B.politely C.happily D.easily
15.A.opinions B.excuses C.ideas D.memories
16.A.Honesty B.Helpfulness C.Devotion D.Generosity
17.A.hurtful B.pitiful C.shameful D.doubtful
18.A.regretting B.struggling C.joking D.recovering
19.A.Trust B.Necessity C.Kindness D.Importance
20.A.seat B.walk C.rest D.break
Male frogs use territorial calls to warn off frogs that are entering their territory. 1.. So they do not waste energy by making territorial calls when they detect those frogs near their territory. However, if an unknown frog approaches the land they claim as their own, males will aggressively let out a territorial call.2..
Warning calls are employed to warn other frogs of some nearby danger and are commonly heard when an attacker comes near.3.. If an attacker attacks a frog, the frog will make a call almost like a scream, which is intended to scare the attacker. This scream is almost always made when the attacker succeeds in grasping the frog because, should it be greatly surprised, the attacker may release the frog, which might permit the animal to make its escape.
4., which is employed when another frog is caught hold of by mistake. This regularly happens during the mating season, when male frogs eager for a mate wrongly grasp another male. In other cases, females that have already mated may make this call when different male frogs catch them.5..Whenever a male catches a female of another species, the female gives the release call to inform the male that he has made a mistake and should let go.
A.Frog calls further differ between species
B.The final major call made by frogs is the release call
C.To the human ear, frog mating calls may all sound similar
D.Frogs make short, sharp, loud sounds while they hurry away
E.Males can recognize the calls their neighbors make from afar
F.If the strange frog does not leave immediately, it may be attacked
G.There are some special occasions when frogs belonging to different species mix with one another
Although we live in an era where everything seems to be available immediately, our study suggests that today’s kids can delay gratification(满足感) longer than children in the 1960s and 1980s,“ said University of Minnesota psychologist Stephanie M. Carlson.” This finding stands in great contrast with the assumption by adults that today’s children have less self-control than previous generations.
The original marshmallow(棉花糖) test conducted by researchers at Stanford University involved a series of experiments in which children aged between 3 and 5 years were offered one treat that they could eat immediately or a larger treat if they waited. Researchers then left the room to see how long the children would wait and watched from behind a one-way mirror.
Interestingly, today's adults thought that children nowadays would be more impulsive and less able to wait, Carlson found. "Our findings serve as an example of how our beliefs can be wrong and how it's important to do research,” said co-author Yuichi Shoda, PhD at the University of Washington.
The researchers offered several possible explanations for why children in the 2000s waited longer than those in prior decades. They noted a statistically significant increase in IQ scores in the last several decades. Another explanation may be society's increased focus on the importance of early education, according to Carlson. The primary objective of preschool changed from largely custodial care (监护) to school readiness in the 1980s. Parenting also has changed in ways that help promote the development of executive function, such as being more supportive of children's self-control, the researchers noted.
Walter Mischel of Columbia University, who co-authored this paper, noted that “while the results indicate that the children’s ability to delay is not weakened on the marshmallow test, the findings do not speak to their willingness to delay gratification when faced with the many temptations now available in everyday life.”
1.According to the passage, what is the adults' assumption about today's children?
A.They are not easy to please.
B.They are less able to control themselves.
C.They don't like things that are easy to get.
D.They have different personalities from previous generations.
2.What does the underlined word "impulsive " in Paragraph 3 mean?
A.productive B.considerate
C.clear-minded D.hot-headed
3.What did the researchers find about children in the 2000s?
A.They are more prepared to go to school.
B.They are not as clever as previous generations.
C.They are taught self-control only by their teachers.
D.They don’t need any custodial care in their early childhood.
4.What does the author want to tell readers in the last paragraph?
A.Most children nowadays can't resist the temptations of everyday life.
B.Children chose to delay gratification willingly in the marshmallow test.
C.The test can’t accurately measure children's willingness to delay gratification.
D.Children’s ability to delay gratification is weakened because there are many temptations.
Nine mini cheetahs robots appeared in the field to show their athletic abilities. The four-legged machines, mini versions of the larger and heavier Cheetah 3, began with a warm-up run across the field.
Though they may be similar to their predecessors(原先的事物), the new four-legged machines are much more advanced. Weighing just nine kilograms, the robots can bend and swing their legs wide, giving them the ability to walk either right-side-up or upside down. They can also travel through uneven places at about twice the speed of an average person’s walking pace and quickly right themselves if kicked to the ground and perform unbelievable 360-degree backflips(后空翻) from a standing position.
Unlike the Cheetah 3, the main robots are built using cheap and easy to find parts. This means that if an arm or a motor breaks, it can be easily replaced. “If you wanted to add another arm, you could just add three or four more of these motors,” said lead developer Benjamin Katz, “You could put these parts together, almost like Legos.”
The team, which currently has ten of the four-legged machines, plans to build additional units in other university robotic labs. “A big part of why we built this robot is that it makes it easy to experiment and just try crazy things, because the robot is very strong and doesn’t break easily, and if it does break, it’s easy and not very expensive to fix, ” said Katz.
He believes that this will enable other engineers to teach the robots different skills. “Eventually, I’m hoping that we could have a robotic dog race through an obstacle course, where each team controls a mini cheetah with different ways, and we can see which strategy is more effective. That’s how you accelerate research,” said Katz.
The team’s reason for developing the robots extends beyond entertainment. They hope that someday packs of “cheetahs” will assist first respondents with search and recovery missions following natural disasters like earthquakes, work alongside firefighters, and even respond to military emergencies.
1.Which of the following best describes the mini robot?
A.Delicate. B.Portable.
C.Complex. D.Flexible.
2.Why are cheap materials used for the mini robot?
A.To test it out in other fields. B.To produce it on a large scale.
C.To make sure it’s easy to repair. D.To make people afford to buy it.
3.What’s the main purpose of making the “cheetahs”?
A.To replace firefighters. B.To entertain people in a way.
C.To bring more convenience to people. D.To help people in dangerous situation.
4.Where is the text most likely from?
A.A diary. B.A magazine.
C.A novel. D.A guide book.
In many-even most-space-themed films, whenever Earth faces a disaster, the solution is always leaving the planet in spaceships. But the latest Chinese sci-fi movie,“The Wandering Earth”，offers a different idea.
In the film, which is adapted from a short story by Chinese sci-fi writer Liu Cixin, Earth is in danger of being destroyed by the dying Sun. Humans around the world work together to build a huge engine system that will push Earth away from the Sun. Instead of leaving Earth-again-this time we’re taking it with us.
This idea didn't come from nowhere. For thousands of years, Chinese people have had a special emotion at their “homeland” in their hearts and minds. One old saying is “luo ye gui gen", which means returning to one’s homeland in old age, like fallen leaves returning to the roots of their tree. Or look to an ancient poem: “The season called the White Dew ( 白露) begins tonight/Nowhere as in our native place is the moon so bright.” These both show the strong relationship that Chinese people have had with their homeland.
This is probably what sets “The Wandering Earth" apart from Hollywood-style space films. “What is Chinese sci-fi?”Guo Fan. the film’s director, said in an interview. “Films that can really express Our cultural and spiritual core ( 精神核心) can be called Chinese sci-fi. Otherwise, we' re just copying others and telling the same American stories.
And the makers of “The Wandering Earth” may have chosen the best time to tell the Chinese sci-fi story. The film was screened on Feb 5, the first day of Chinese New Year. It was a time when many people had just made the hard journey back to their hometowns. So to them, there is only one possible way to tell the story: Earth goes wherever humans go, because it's our home.
1.What can we know about “The Wandering Earth” from the passage?
A.It follows the latest film fashion.
B.It is based on Liu Cixin' s book.
C.It is a film copying foreign movies.
D.It offers us a new experience of watching films.
2.What does Para 3 mainly talk about?
A.The suitable season when the film was screened.
B.The famous poems mentioned in the film.
C.The common points between Chinese films and foreign films.
D.The cultural background of the film.
3.The makers of this film choose Feb5 to put on it probably because_________.
A.it was the Spring Festival and many people have time to see it.
B.many old people want to return to their hometown.
C.it can cause many people’s common feelings at this time.
D.Chinese people usually celebrate together on that day.
4.What can we infer from Guo Fan's words?
A.American sci-fi fails to express its culture.
B.“The Wandering Earth" tells a foreign story.
C.Chinese sci-fi should have its own features.
D.Science fiction films should express certain spiritual cores.
