1 . Eyes are said to be the window to the soul — but researchers at Google see them as indicators of a person’s health. A study suggests that Google’s computers can predict whether someone is at risk of a heart attack by analyzing a photograph of their retina (视网膜).

The research relied on a convolutional neural network, a type of deep-learning algorithm (算法) that is transforming how biologists analyse images. Google’s approach is part of a wave of new deep-learning applications that are making image processing easier and could even identify overlooked biological phenomena.

The approach took off in the tech sector around 2012, but scientists struggled to apply the networks to biology, in part because of cultural differences between fields. “Take a group of smart biologists and put them in a room of smart computer scientists and they will talk two different languages to each other, and have different mindsets,” says Daphne Koller, chief computing officer at Calico.

However, through years of study, some scientists have seen a shift that has never happened before in how well machine learning can accomplish biological tasks that have to do with imaging. Others are most excited by the idea that analysing images with convolutional neural networks could unknowingly reveal unnoticeable biological phenomena, encouraging biologists to ask questions they might not have considered before.

Such discoveries could help to advance disease research. If deep learning can reveal markers of cancer in an individual cell, it could help to bring about new assumptions about how cancer spreads.

Other machine-learning experts in biology have set their sights on new frontiers, now that convolutional neural networks are taking flight for image processing. “Imaging is important, but so is chemistry and molecular (分子) data,” says Alex Wolf, a computational biologist. Wolf hopes to improve neural networks so that they can analyse gene expression. “I think there will be a very big breakthrough in the next few years,” he says.

1. What do we know about a convolutional neural network?

A．It can predict diseases.	B．It is a learning machine.
C．It can transform images.	D．It is an image processor.

2. What can we infer from Daphne Koller’s words?

A．Barriers exist in certain fields.	B．Scientists have different research aims.
C．Characters prevent scientific cooperation.	D．Technical limitation is the biggest challenge.

3. With further study of convolutional neural networks, ______.

A．many biological questions get answered

B．it drives biologists to explore the field widely

C．image analysis can go on without being noticed

D．many deep-learning applications have been improved

4. What is implied in the last paragraph?

A．Neural networks are promising.	B．It is convenient to process images.
C．It is necessary to work on new frontiers.	D．Analyzing gene expression is imperfect.

2 . You improve your robot’s software by improving its software. Agrim Gupta of Stanford University, however, begs to differ. He thinks you can also improve a robot’s software by improving its hardware. He and his colleagues have invented a way of testing this idea.

They brought to their robots, unimals, the principles of evolution (进化) by natural selection. Unimals, with globes for heads and sticks for arms and legs, are software beings interacting with a virtual environment. The environments where they wandered were in three varieties: flat grounds, grounds with hills and steps, and ones that had the complexities of the second sort, but with added objects.

To begin with, the unimals were randomly assigned various shapes, but with identical software— derl. Newly created unimals learned to face the challenges in a virtual bootcamp. They were then entered into tournaments in groups. Each group winner was awarded one mutation (变异) —one extra arm or leg, or one extra turning in a joint. The new replaced the oldest unimal and then was assigned to a new group, and the process repeated. About 4,000 varieties of them underwent training.

The team were surprised by the diversity of shapes that evolved. Crucially, though, the researchers found the most successful unimals learned tasks in half the time their oldest ancestors had taken, and that those evolving in the toughest grounds were the most successful.

In this evolution of unimals’ morphology (形态) to promote the ability to learn, Dr Gupta sees a version of something called the Baldwin effect. In 1896 James Baldwin, a psychologist, argued that minds evolve to make the best use of the morphologies of the bodies. What Dr Gupta has shown, though in software, is that the opposite can also be true — changes in body morphology can improve the way minds work. Even though he held the software constant, it became more efficient at learning as the unimals’ bodies evolved.

Whether that discovery can be turned to account in the way robots are developed remains to be seen. But the way of testing is certainly an out-of-the-box idea.

1. How was the test conducted?

A．By promoting Unimals’ learning.	B．By adjusting the environments.
C．By proving the evolution theory.	D．By stimulating unimals’ mutation.

2. What turned out to be surprising in the test?

A．The number of trained unimals.	B．The decline in time for learning tasks.
C．The variety of evolved shapes.	D．The replacement of old unimals.

3. What can be concluded from the test?

A．Mind evolution affects body shaping.

B．Body changes better mind work.

C．Hardware changes do not impact software.

D．The discovery is useful in robot development.

4. What’s the author’s attitude to the finding?

A．Negative.	B．Objective.
C．Indifferent.	D．Approving.

3 . Malat Leuth Wei, 25, loves being in the gym, flying across the court in a specialized wheelchair. The games are incredibly ______, with screeching (刺耳的) tires, crashing metal and the impressive teamwork and courage of the athletes ______.

Wei was born in what is now South Sudan and had polio (小儿麻痹症) at age 3. Worse still, his father went ______ during the civil wars leading to the country’s eventual independence in 2011. During those unsettled times, Wei and his mother ______ at a camp in Ethiopia, where Wei remembers crawling around on his arms on dirt roads before getting a ______. When he was 12, they moved to Houston.

He had a tough time ______ in the United States. It was quite late in his childhood to make such a huge move, and he was ______ in sixth grade despite knowing very little English. Some kids made fun of him, but a more ______ group introduced him to the ______ that would change the direction of his life.

Wei went to the park with all the children in the ______ to go play basketball with them. He was the only one ______ from a wheelchair. The fact that they actually treated him as equal and not somebody ______ turned out to be where everything started.

Wei ______ every opportunity to play and compete with them. “It means the world to me just to share my ______ with the world, of what I have accomplished in life, from where I came from, with ______, not knowing how to read or write English.” says Wei.

1.

A．easy

B．intense

C．complex

D．close

2.

A．in vain

B．in style

C．on display

D．on line

3.

A．missing

B．fighting

C．starving

D．begging

4.

A．wandered about

B．turned up

C．ended up

D．dropped by

5.

A．shelter

B．passport

C．walking-stick

D．wheelchair

6.

A．training

B．schooling

C．adjusting

D．travelling

7.

A．assigned

B．appointed

C．admitted

D．ranked

8.

A．inspiring

B．interesting

C．challenging

D．accepting

9.

A．legend

B．motto

C．sport

D．culture

10.

A．neighborhood

B．camp

C．city

D．country

11.

A．shooting

B．rising

C．chasing

D．kicking

12.

A．more

B．better

C．less

D．worse

13.

A．loses

B．treasures

C．deserts

D．doubts

14.

A．message

B．victory

C．emotion

D．failure

15.

A．everything

B．nothing

C．anything

D．something

4 . The robots are alive, and now they can reproduce.

That’s not a continuation to “The Terminator” It's the latest result of research among scientists at Harvard and the University of Vermont. These xenobots, named for the African frog Xenopus laevis, could move around and display collective behavior.

The researchers took stem cells (干细胞) from the skin of frog and put them in salt water, where they came together into balls with a covering of cilia, which are similar to small hairs and enable the organisms (生物体) to move. The scientists noticed that these organisms, xenobots, would collect any particles (粒子) placed in the dish to make piles. They started to wonder whether the tiny robots would do the same thing with individual stem cells, so they conducted a test.

Knowing that xenobots5 shapes affect their behavior, the researchers tried to figure out which form would help the organism to reproduce repeatedly. They discovered that a “C” shape seemed to be the best. The C-shaped xenobots gathered individual stem cells into groups, which became xenobots of their own. This type of reproduction is based on the organisms’ movement, rather than growing and then forming a new being as other animals and plants do.

Xenobots are on an unusual line between living organisms and robots. They are organisms because they are made of stem cells and can reproduce. But they are also robots because they can move on their own and perform physical labor. Although most robots are made of metal, robots are given the definition not by their material, but by what they can do.

Before now, Kriegman, a postdoctoral fellow at Harvard University, said, “no one has been using living materials as self-moving, self-powered robots.” The researchers hope that the xenobots can help them better understand the process of reproduction —a fundamental quality of life —and how to control it. Faced with a world full of self-reproducing problems, such as Covid-19, Kriegman said studying xenobots could lead scientists closer to solutions.

1. What inspired the researchers to perform an experiment?

A．The position of particles.	B．The gathering of stem cells.
C．The movement of organisms.	D．The collective ability of xenobots.

2. What is special about the C-shaped xenobots reproduction?

A．It's repeated constantly.	B．It generates new beings.
C．It separates individual stem cells.	D．It's based on xenobots’ motion.

3. How are xenobots defined as robots?

A．By their function.	B．By their reproduction.
C．By their unique component.	D．By their physical appearance.

4. What can be inferred about the research from the last paragraph?

A．It could make a breakthrough.	B．It would bring scientists closer.
C．It could find the secret of reproduction.	D．It would discover the solution to Covid-19.

5 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

A New Addition to the Family

For the initial ten years of his life, Victor was the prince of the household. As he was an only child, his parents petted him and showered all their love and attention on him. Whatever toys his parents bought, they were always meant for him. Whatever food was in the refrigerator, there was no one to compete with him to polish it off first. Victor could leave his toys or books around the house with complete ease of mind, knowing that there was no one who would get their hands on his belongings and cause any damage.

However, all that was to change overnight when Victor’s parents brought back his new baby sister, Lina, from the hospital. With her rosy cheeks, wide open eyes and angelic smile, Lina caught the hearts of her parents, grandparents and relatives. Everyone focused their attention on the cute bunch of joy. Whenever she cried, her mother or father would rush to her bed. She simply cried because she wanted to be carried. There was little time left for Victor.

Now that Victor’s mother had his baby sister to take care of, she expected Victor himself to do most of the chores he can do. Victor was asked to clean his own room, iron his own school uniform and clean his own shoes. Before Lina’s arrival, he had never lifted a finger to help out with these tasks. The whole family also went out less because it was unhealthy to expose Lina to the bacteria(细菌) being in the outside world too often.

Victor felt neglected by his parents. He felt that they loved Lina more than him. As a result, he tried to attract his parents’ attention by becoming resistant. One evening, Victor’s parents were called up by his teacher because Victor had got into a fight at school. His teacher had noticed Victor’s behaviour and work attitude changing downwards in the past two months. Before that, he had been a model student.

注意：1.续写词数应为150左右；
2.请按如下格式在答题卡相应位置作答。

Upon hearing the teacher’s feedback, Victor’s parents got lost in thought.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Victor realized that his parents still cared for him.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

6 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The combination of music and study has long been     1     source of disagreement between adults and children.Parents and teachers alike maintain that     2    (silent)is important when learning, whereas youngsters insist that     3    (they)favourite sounds help them concentrate.

Now a study shows that the     4    (grown-up)have been right all along.Psychologists in Florida tested how fast students wrote essays     5     and without music in the background .They     6    (find)that the sounds slowed progress down by about sixty words per hour. “This demonstrates     7    (clear)that it is difficult to cope with listening and writing at the same time,”said Dr.Sarah.She also came to the conclusion     8     it is a myth that instrumental music is less disturbing than songs. “All types of music had the same effect,” she said in her report. “One’s ability to pay attention and write fluently is likely     9     (disturb) by both songs and instrumental music,” she added.

Dr. Sarah claimed the research demonstrated that the idea that music could improve performance was wrong. “Writing an essay is a complex task. You     10     (recall) information and putting it in order. But what is particularly worrying is that more and more teenagers are studying in front of the television.”

7 . After a three-year delay, M+，Hong Kong’s museum dedicated to Chinese visual culture, opened to the public It contains an astonishing collection of art with works by some celebrities. The former Executive Director, Lars Nittve, sees M+ as equally as New York’s MoMA or the Centre Pompidou in Paris, in terms of depth and cultural importance.

M+ wouldn’t have been possible without Swiss businessman and art collector Uli Sigg, who in 2012 donated and sold 1,510 Chinese contemporary works of art to the museum. Michael Schindhelm’s 2016 documentary, The Chinese Lives of Uli Sigg, looked back at Sigg’s life and how he accumulated his collection to preserve contemporary Chinese art for three decades. In interviews of the film, Sigg prefers to view himself as “a researcher of China and of Chinese contemporary art who just happened to buy some of the results of his research.”

Chinese Lives follows Sigg’s life in time order, starting in 1979, the year that he first went to China as a representative of the Swiss elevator manufacturer. In 1995 Sigg became the Swiss Ambassador to China, which lasted until 1999. He was buying art with an objective eye, one towards preserving culture.

Moving into the 21st century, Chinese art reached international attention thanks to Sigg’s efforts. He created the Chinese ContemporaryArt Award, an award that functioned to get artists noticed by important Western artists and galley owner. At the same time, pieces by Chine artists were gaining more and more global reputations.

Following Sigg’s announcement that he will donate a sizable portion of his collection to the soon-to-be-opened M+ museum, Chinese lives ends on a hopeful note for the still-growing art scene in China. The documentary is a good starting point to familiarize oneself with contemporary Chinese art and the man who helped expose it to the world.

1. Why does the author mention “MoMA” in paragraph 1?

A．To enrich our knowledge.

B．To memorize art celebrities.

C．To deepen M+ museum’s popularity.

D．To indicate M+ museum’s significance.

2. Which identity would Uli Sigg most probably agree with?

A．A contemporary artist.

B．A researcher of Chinese art.

C．A collector of contemporary art.

D．An ambassador with artistic taste.

3. What can we infer from The Chinese Lives of Uli Sigg?

A．Sigg offered money to Chinese artists.

B．Sigg was the director of the documentary.

C．Sigg made great efforts to promote Chinese art.

D．Sigg was the Swiss Ambassador to China in 2000.

4. What is Uli Sigg like?

A．He is strict and ambitious.

B．He is caring and creative.

C．He is devoted and generous.

D．He is hopeful and humorous.

8 . 阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。

It was a cold, snowy evening. Tommy was running as fast as he could, focused on nothing but his destination----the shop on the street corner. Two weeks ago he saw figurines(小塑像) of Marvel superheroes on the shelves and felt he had to have one. He’s been walking the neighbor’s dog ever since then to earn money to fulfil his little dream. He was so excited and barely noticing the world around him. Maybe that’s why he tripped over the legs of a homeless woman, who was sitting on the pavement, her back against the wall. He murmured(低语) "sorry" and moved on to his destination.

Once he entered the shop, he went straight to the shelves with figurines. Hulk, Thor, Captain America, Iron Man, and many more----all of his admired heroes. With his heart pounding like crazy he reached for Spiderman.

“You like these, true believer?”

Tommy turned around. An old man was standing behind him with a wide smile on his face.

“Y-yes, …Yes, they’re awesome!” answered Tommy. “They’re strong and fast and help other people a lot ...”the boy looked at figurines in admiration. “I wish I could be a superhero too.”

“Then become one!” said the old man.

“How?” Tommy asked in surprise. “I don’t have any superpowers.”

“And why would you need them?” the old man smiled. Seeing the confusion on the boy's face, he squatted(蹲下) and put his hands on Tommy's arms. “Did you know that shopkeeper lady over there has a disabled husband? She’s been working hard and taking care of him for years. I’ve never heard a word of complaint from her. And this person ---” he pointed at a redhead man, who just entered the shop. “He’s a firefighter; he’s saved countless lives. He never gives up, no matter how dangerous the situation seems to be.”

The old man looked Tommy in the eyes and smiled. “You don’t need a superpower to be a hero for someone else. The path of a superhero starts not in the mind, not in the muscles, but in the heart.”

注意:
1.续写词数应为150左右;
2.请按如下格式在相应位置作答。
Tommy lowered his head and looked at his shoes thinking intensely.
__________________________________________________________________________________________________________________________________________________________
The homeless woman was right there, where he saw her last time.
__________________________________________________________________________________________________________________________________________________________

9 . 读后续写

As I was coming into Middle School, Grade Six, I was really excited because my friend Jennifer was going to be in the same Middle School as me! At first things were great, she introduced me to her fiend, Amy and we had lots of fun together. Then things started to change. Jennifer was very controlling: I couldn't make new friends, because if I hung out with different people, she would decide that I was "mad at her and Amy". So I didn't make new friends, and pretty soon being Jennifer's friend became a battle between Amy and me.

Jennifer wanted to be the "leader" of our little group. Amy and I were never partners in class projects or gym; it was always, "Who gets the privilege（荣耀）of being Jennifer's partner." It was either Jennifer liked me and she left Amy out or Jennifer liked Amy and she left me out. Amy and I both wanted to be Jennifer's number one. Being Jennifer's friend became the most important thing in the world.

I always waited for Jennifer and Amy after classes, so we could walk together to our next class. Amy and Jennifer chatted by Jennifer's desk as Jennifer packed her books up and I waited by the door. Sometimes when they left, they'd walk right past me. No "Thanks for waiting". No "Sorry we took so long". It was as if they couldn't even see me. Yet I still waited after every single class.

Most of the time we gossiped（传播流言蜚语）about people, and I soon realized that nobody was good enough for Jennifer. Jennifer had a list of bad things about everybody, even Amy. And I'm sure she had a list of bad things about me, too. After months of living through school this way, I had really changed. I was moody, depressed, lonely, and I didn't smile much. I spent lots of days trying not to cry. I felt so left out.

注意：
1.续写词数应为150左右；
2.请按如下格式在答题卡的相应位置作答。

Finally, near the end of the school year, I got sick of being treated so poorly.

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

I'm in Grade Seven now, and I have tons of friends.

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

10 . The other day a big, ugly, black bat found its way to my bathroom. I am what is known as “the man of the house”, so it was my_________, in fact my manly duty, to rid the house of the_________creature.

Being a man does not_________the fact that I am extremely_________of bats. All men, I think, sometimes have had that feeling of being_________in some male role. Sometimes it is something as simple as having to_________that you know something about car engines when the car won’t start. But sometimes the trap is a (n)_________one. Many men prefer to be something different from what society_________men should be. What these men want is the_________to be what they want to be.

As I came towards the frightening bat, I__________what would happen if I had simply told my wife that I wouldn’t do it. But I couldn’t do that! I__________opened the window, carefully lifted a broom and swept the bat out of the__________.

My wife was__________and my son thought I was a__________. They asked me how I had got rid of the bat, I started to tell them—but then__________. A man doesn’t talk of such things.

1.

A．action

B．job

C．character

D．decision

2.

A．awful

B．lovely

C．magical

D．intelligent

3.

A．determine

B．prove

C．explain

D．change

4.

A．afraid

B．fond

C．tired

D．ashamed

5.

A．interested

B．trapped

C．involved

D．absorbed

6.

A．admit

B．expect

C．pretend

D．confirm

7.

A．difficult

B．accessible

C．small

D．visible

8.

A．forbids

B．thinks

C．predicts

D．refuses

9.

A．anxiety

B．promise

C．freedom

D．talent

10.

A．concluded

B．revealed

C．doubted

D．wondered

11.

A．eagerly

B．accidentally

C．slowly

D．violently

12.

A．car

B．engine

C．door

D．window

13.

A．pleased

B．shocked

C．embarrassed

D．amused

14.

A．friend

B．master

C．champion

D．hero

15.

A．escaped

B．stopped

C．continued

D．forgot