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With the completion of the Human Genome（基因组）Project more than 20 years ago, and the discovery of the double helix structure of DNA enjoying its 70th birthday last year, you might assume that we know how life works. Think again!

Evolution has a 4bn-year head start on us. However, several aspects of the standard picture of how life works-the idea of the genome as a blueprint, of genes as instructions for building an organism, of proteins as precisely tailored molecular（分子）machines and more-have wildly reduced the complexity of life. 

In the excellent book How Life Works, Philip Ball explorers the new biology, revealing life to be a far richer, more delicate affair than we have understood. Ball explains that life is a system of many levels-genes, proteins, cells, tissues, and body modules-each with its own rules and principles, so there is no unique place to look for an answer to it. 

Also, How Life Works is a much more appealing title than the overused question of "What is life?". We should be less concerned with what a thing is, and rather more focused on what a thing does. Defining a living thing implies an unchangeable ideal type, but this will run counter to the Darwinian principle that living things are four-dimensional, ever changing in time as well as space.

But it's an idea that is deeply rooted within our culture. Ball points out that we rely on metaphors（比喻）to explain and explore the complexities of life, but none suffice. We are taught that cells are machines, though no machine we have invented behaves like the simplest cell; that DNA is a code or a blueprint, though it is neither; that the brain is a computer, though no computer behaves like a brain at all.

Ball is a terrific writer, pumping out books on incredibly diverse subjects. There's a wealth of well-researched information in here, and some details that are a bit chewy for the lay reader. But the book serves as an essential introduction on our never-ending quest to understand life.

I hadn't got exercise lately and felt a bit dizzy. I was a little1 . One of my friends invited me to show up to see a2 that they said would help me feel better. Little did I know that I was about to see something I would never forget.

They introduced a young3 , Mr Patrick Henry Hughes. He was4 onto the stage in his wheelchair and began to play the piano. His fingers5 across the keys as he made beautiful music. He then began to sing as he played, and it was even more beautiful. For some reason,6 , I knew that I was seeing something special. Ten minutes later, someone came on the stage and7 a video of Patrick Henry Hughes.

Patrick was born with no eyes and a tightening of the joints which left him8 for life. Before his first birthday, he9 the piano. On his second birthday, he asked to play it. His father was10 . "We might not play baseball, but we can play music together. "

Today, Patrick is a11 at university. His father attends classes with him and he has made nearly all "A" s. He is also a trumpet player of a band. He and his father do it together — they12 all the band practices and the half-time performance in front of thousands of people.

But even more than his13 musical talent, it was Patrick's attitude to gratitude that touched me. I will never forget that night, that smile, that music, but most importantly, that14 attitude to gratitude. Gratitude can change your attitude,15 your life forever.

A lot of people admired our neighbor. One day a delivery truck unloaded a large 1 system at their house. And the kids discussed the new sound equipment my neighbor had just bought. Meantime, we were living in a house decorated 2 and dressing our kids in second-hand clothes. We lived a 3 life. 

My poor mother-in-law, in town for a visit, got to hear my complaints that night. "I feel so 4 sometimes," I told her, as we 5 the table after dinner. "I know we're doing the right thing, living frugally (节俭的), saving money, but it feels so hard. There're so many things I'd like to 6 , so many things I'd like to do, but we just can't."

She 7 as she folded a cloth napkin in silence. Then she turned to me and said, "When you make a comparison between yourself and others, it's easy to 8 what you don't have. But there's one thing you two do that many other couples may 9 to do. You two often go out together and take time to focus on your 10 . And that's a very important thing."

I stopped wiping the table and 11 for a minute. I thought of the movie my husband and I had seen a week earlier. I 12 the bike rides, the hikes and the picnics. Most of all, I remembered how 13 we were together, even after twenty years. How many people can say that? 

I looked around my home in a new 14 . Our refrigerator was too small for a family of six, but it was 15 filled with delicious food. Our kitchen was small and we had no big TV, but we're happy! And that's enough! 

The popularity of ancient towns in the south of the Yangtze River, such as Zhouzhuang and Wuzhen, has aroused a nationwide trend in the construction of ancient towns. Lin Peng, the director of China's Institute of Ancient Cities and Cultural Studies, pointed {#blank#}1{#/blank#} that there are more than 2,800 developed or developing ancient towns in our country, {#blank#}2{#/blank#} is definitely the highest number globally.

In ancient towns, {#blank#}3{#/blank#} immersive（沉浸式） experience being mentioned here is historical and cultural characteristics—the "ancient" of ancient towns. Apart from visible "special buildings", characteristics also include invisible "culture". Tourists in ancient towns want to see the living {#blank#}4{#/blank#} （condition） of local people, feel the vitality of town life, try characteristic local snacks {#blank#}5{#/blank#} （influence） by geography and folk customs, and understand how long history {#blank#}6{#/blank#} （shape） local culture. Out of modern fast-paced work and life, tourists want to awaken their inner softness with a slow-moving ancient town.

Touring ancient towns is for recreation, relaxation, and pleasure, {#blank#}7{#/blank#} if all the ancient towns in different places are the same and cannot find their own {#blank#}8{#/blank#} （unique）, then ancient town tourism will {#blank#}9{#/blank#} （eventual） decline. Let every ancient town become a unique historical imprint（印记）, so that tourists can find their "poetry and distance" while {#blank#}10{#/blank#} （wander） through the ancient towns. This is the soul that ancient towns need to regain.

A little boy selling magazines for school walked up to a house that people hardly visited.The house was very old and the owner hardly ever came out.When he did come out he would not say hello to neighbors or passers-by but simply just glare(瞪眼看)at them.

The boy knocked on the door and waited,sweating from fear of the old man.The boy's parents told him to stay away from the house.A lot of the other neighborhood children were told the same from their parents.

As he was ready to walk away,the door slowly opened."What do you want?" the old man said.The little boy was very afraid but he had a quota(份额) to meet for school with selling the magazines.

"Uh,sir,I uh am selling these magazines and uh I was wondering if you would like to buy one." The old man just stared at the boy.The boy could see inside the old man's house and saw that he had dog figurines(小狗雕像) on the wall."Do you collect dogs?" the little boy asked."Yes,I have many collections in my house.They are my family here.They are all I have." The boy then felt sorry for the man,as it seemed that he was a very lonely soul."Well,I do have a magazine here for collectors.It is perfect for you.I also have one about dogs since you like dogs so much." The old man was ready to close the door on the boy and said,"No,boy,I don't need any magazines of any kind,now goodbye."

The little boy was sad that he was not going to make his quota with the sale.He was also sad for the old man being so alone in the big house that he owned.The boy went home and then had an idea.He had a little dog figurine that he got some years ago from an aunt.The figurine did not mean nearly as much to him since he had a real live dog and a large family.

注意：1）续写词数应为150左右;

2）请按如下格式作答。

The boy headed back down to the old man's house with the figurine.

From that day on something changed inside the old man.

We all know how it feels to get lost in a great book. But what's happening in our brains as we dive into it? How is it different from what happens as we experience real life? Now, a new study led by Dr Leila Wehbe and Dr Tom Mitehell of Carnegie Mellon University have provided partial answers to these questions. 

Since reading comprehension is a highly complex process, earlier studies tried to break that process down and focus on just one aspect at a time: mapping fMRI signatures（特征）associated with processing a single word or sentence, for example. "It's usually not like reading a book, and usually the stimulus（刺激物）consists of out-of-context sentences designed specifically for the experiment"

To address these issues, the researchers developed a computer program to look for patterns of brain activity that appeared when people read certain words, specific grammatical structures, particular characters" names and other aspects of the story—a total of 195 different "story features". In the study, they first asked eight volunteers to read Chapter 9 of Harry Potter and the Sorcerer's Stone and recorded their brain activity using an fMRI scanner（扫描仪）. Then the researchers fed the volunteers' fMRI data into their computer program and had the program identify the responses of different brain regions to the 195 features mentioned above. 

The result showed that when the volunteers read descriptions of physical movement in the story, there was significantly increased activity in the posterior temporal cortex, the region involved in perceiving real-world movement. Besides dialogue was specifically related with the right temporoparietal junction, a key area involved in imagining others thoughts and goals. "This is truly shocking for us as these regions aren't even considered to be part of the brain's language system," Wehbe says. 

Next, Wehbe and Mitchell hope to study how and why language processing can go wrong. "If we have a large enough amount of data", Wehbe says, "we could find the specific ways in which one brain—for example, the brain of a dyslexic（诵读困难的）person—is performing differently from other brains." And this, the researchers think, may someday help us design individually tailored（特制的）treatments for dyslexia and other reading disorders.