1 . It’s unlikely that we’ll see a dodo, a flightless bird, walking this earth anytime again, according to Beth Shapiro, a evolutionary molecular biologist.
“When most people think about de-extinction, they’re imagining cloning,” Shapiro said. Cloning, the approach that created Dolly, the sheep in 1996 and Elizabeth Ann, the black-footed ferret in 2020, creates an identical genetic copy of an individual by putting DNA from a living adult cell into an egg cell from which the nucleus (细胞核) has been removed. Adult cells contain all the DNA needed to develop into a living animal. Egg cells then use that DNA as a blueprint to turn themselves into many kinds of cells——skin, organs, blood and bones——the animal needs.
“But no living cells from dodos exist. Instead,” Shapiro said, “you’d have to start with a closely related animal’s genome (基因组) and then change it into one similar to dodos.” For example， mammoths (猛犸) are also extinct，but they were very closely related to modern Asian elephants, so researchers are attempting to bring mammoths back from extinction by creating a hybrid mammoth with some mammoth genes replacing part of the elephant genome in an elephant egg cell. However, there are likely millions of genetic differences between the genome of an Asian elephant and that of a mammoth according to Shapiro.
As for the dodo, its closest living relative is the Nicobar pigeon. Mammoths and Asian elephants are pretty closely related, whereas it had been more than 20 million years since the dodo and the Nicobar pigeon had any common ancestors. Genetic differences between the two bird species are therefore much greater, making it a formidable task to create a successful hybrid in the lab, Shapiro said.
Even if scientists manage to bring dodos back, the island where they once lived is a very different place nowadays, which make it impossible to reintroduce dodos without major intervention.
1. What is Paragraph 2 mainly about?| A．The special role of DNA. |
| B．The process of cloning. |
| C．The development of cloning. |
| D．The complexity of cloning. |
| A．Dodos are harder to bring back to life. |
| B．Their living cells are hard to preserve. |
| C．Cloning can be used to recreate extinct animals. |
| D．They share a similar genome with Asian elephants. |
| A．Urgent. |
| B．Possible. |
| C．Tough. |
| D．Different. |
| A．Favorable. |
| B．Intolerant. |
| C．Objective. |
| D．Negative. |
“Why are we bringing groceries for Mrs. Killinger?” Bobby asked his mother, Anna, as they walked back from the supermarket with a few extra bags for their elderly neighbor. He enjoyed helping his mother with these tasks, but they had never bought anything for any neighbor before.
“Honey, Mrs. Killinger is now having trouble walking around, so I offered to bring some things from the market,” Anna explained as they climbed up the wooden steps to Mrs. Killinger’s house and rang the doorbell.
“Ok, but she could get a wheelchair and move around,” the boy commented as if it was the most straightforward solution in the world.
“You know, Bobby. Mrs. Killinger doesn’t have the money to buy one right now.
They can get expensive.” Anna explained, and Bobby pursed his lips in thought.
Mrs.Killinger answered the door, smiled, and invited them for some coffee and cookies. Bobby noticed how slowly she moved, and an idea formed in his mind. He told the older woman and his mother all about it, and they grinned at him indulgently (宽容地笑).Neither of them thought Bobby would do it.
That’s why Anna was surprised the following day when Bobby had made several ads. “Mom, can you add your phone number here, so people can call me with work?”
“Oh, honey. This is very sweet. But I don’t know if it’ll be enough to raise the money she needs to buy a wheelchair,” Anna explained. She loved that her son had such a big heart, but he didn’t want him to be heartbroken if no one called or he couldn’t raise the money.
“Well，at least，I can say that I tried to help，” Bobby chirped (欢快地说)with his bright smile and eager eyes. Anna nodded and added her phone number to the ads. In his ad, Bobby offered his “services” which included helping with shopping, mowing lawns, keeping company, and walking dogs. He also left the price of his services, which made Anna smile. He honestly just wanted to help.
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。
Anna helped him put up the ads around the neighborhood.
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Two weeks later, Bobby still hadn’t raise the amount of money he wanted.
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3 . Recycling is a great way of doing your bit for the environment and helping to protect the earth’s precious resources. However, a new study has revealed that our desire to be sustainable maybe doing more harm than good. According to waste company Biffa, this is because of “wish-cycling” — assuming that items such as disposable coffee cup sand pizza boxes will be recycled if put in the recycling bin. In fact, pollution from those items or other non-recyclables can result in recyclable items that have been put in the correct bin going to landfill. David Heaton, a business director at Biffa, said: “Pollution happens when items are disposed of in the wrong bins or haven’t been cleaned before being recycled.”
Experts at Biffa analyzed the amounts of non-target and non-recyclable materials that entered UK material recycling facilities between 2016 and 2020. It was found that, in 2016, the average pollution rate of recycling waste was 13.4 percent, rising over four years to 17 percent by the end of 2020. This shows that, even as people are becoming more eco-conscious, wish-cycling is increasing both in households and businesses.
The Biffa experts say that one of the best ways to prevent pollution of recycling is to clean recyclable waste before putting it in the bin. They suggest cutting off the top of old pizza boxes and only recycling that part to avoid pollution from the grease (油脂). Check the on-packaging recycling label to check it can actually be recycled When it comes to plastics, Biffa recommends checking the resin code, the number in the plastic triangle, to know whether it should go in the recycling bin. In general, resin codes 1, 2, 4 and 5 are recyclable, while 3, 6 and 7 are not. Larger items, like electronics, furniture and batteries, can also be recycled but often can not go in household recycling bins as they need specialist separating. These will need to be taken to recycling centers or sustainable waste management companies.
“It’s vital as a nation that we get better at effective ‘pre-cycling’— sorting waste correctly before collection to reduce pollution rates,” added Mr. Heaton.
1. What’s the truth of “wish-cycling” according to the first paragraph?| A．The desire to lead a sustainable life. |
| B．The good intention to help recycling. |
| C．The habit of throwing items that end up in landfills. |
| D．The practice of recycling items that can not be recycled. |
| A．People are becoming more eco-conscious. |
| B．Wish-cycling is on the rise in recent years. |
| C．Pollution happens less frequently in recycling facilities. |
| D．People are used to cleaning recyclable waste before putting it in the bin. |
| A．Dispose of electronics together with household waste. |
| B．Skip the step of checking the on-packaging recycling label. |
| C．Check the resin code of plastics to see whether it is recyclable or not. |
| D．Cutoff the top of old pizza box and throw the rest to the recycling bin. |
| A．Recycling: a Big Project | B．Wish-cycling: a New Trend |
| C．Wish-cycling: a Growing Concern | D．Pre-cycling: an Effective Method |
4 . For decades, I was a hard drinker who could drink anyone under the table. This lasted from the age of 27 until after 50, a golden time during which I felt very sorry for ex-drinkers and people who couldn’t or wouldn’t drink. How did they make it through social situations, especially parties? What did they do at the end of a workday to celebrate and relax?
When I first tried to quit drinking myself in my early 50s, I wasn’t sure at first how it would work for me. But I did it anyway.
During these years, I didn’t love not drinking. But I had to admit that when I was off booze, I looked and felt better physically: I slept more deeply, had more energy, exercised more. My mind was clearer. My moods were brighter. Parties were hard, and so was cooking at the end of a day of writing without a glass of wine at my elbow.
I finally quit drinking for real almost four years ago, on 12 July 2019, when a writer friend stayed with my husband and me after his wife kicked him out. After my husband had gone upstairs to bed, my friend sat on our sofa drinking an entire bottle of gin, complaining about his fate, until he passed out next to our dog, whose bed that sofa was.
I’m not going to lie: being sober is not a hot-air balloon ride.
| A．My body demanded it. |
| B．My health started improving rapidly. |
| C．It’s more like a hike in the mountains. |
| D．How did they quit drinking? |
| E．It was a wake-up call. |
| F．But the pluses seemed to outweigh the minuses. |
| G．How did they get through life? |
5 . I’m a mother of three and a psychologist. Recently, I come to understand what makes childhood valuable in its own right.
One day, when I went to get my 7-year-old son from soccer
The traditional view of such a moment is that it is
| A．appointment | B．display | C．practice | D．experience |
| A．served | B．greeted | C．witnessed | D．treated |
| A．envied | B．criticized | C．promoted | D．forgiven |
| A．hanging | B．settling | C．putting | D．turning |
| A．shyness | B．weakness | C．loneliness | D．sadness |
| A．pick up | B．look for | C．stare at | D．bring out |
| A．ears | B．hands | C．mouth | D．face |
| A．biggest | B．simplest | C．strangest | D．dullest |
| A．eyes | B．arms | C．legs | D．feet |
| A．entertainment | B．delight | C．satisfaction | D．confusion |
| A．gather | B．play | C．sit | D．stay |
| A．practical | B．impossible | C．accessible | D．unnecessary |
| A．capacity | B．respect | C．effort | D．responsibility |
| A．experienced | B．absorbed | C．rich | D．skillful |
| A．seeking | B．studying | C．missing | D．denying |
Zibo, the origin of Shandong cuisine and the hometown of Qi culture, keeps its taste of thousands of years ago intact (完整的). If Shandong cuisine is the profound foundation of Zibo culture, the barbecue is an
Once the mutton skewers begin to sizzle on the barbecue, people gather around, eyeing the fat, juicy,
7 . About15 years ago, Andrew McLindon, a business owner and passionate cyclist, was riding his bike in Austin, Texas, when he thought about a friend’s 12-year-old son. The boy had never known the joy of biking because he suffered from a brain condition that often caused balance disturbances.
When he got home, McLindon, now 60, went online and found a three-wheel recumbent (侧卧的) bike with a seat belt, perfect for a child with balance issues. Soon the boy was cycling around the street with his peers, having fun and getting exercise. But there was more, as McLindon learned from his friend’s reaction. “To see his son interacting with other kids,” McLindon says. “I’ll never forget the smile on his face.”
That smile launched the McLindon Family Foundation. Funded by donations, the group works with pediatric rehab (小儿康复) clinics to find children who can benefit from owning bike and to help craft each bike to the particular needs of the child. A bike may include a headrest, a shoulder band, a seat belt, and a caregiver’s steering and braking system in the back. The bikes are expensive — $3, 000 to $4, 000, and that’s with the foundation’s large discount. For kids lucky enough to get one, they’re a life changer.
“We worked with a 14-year-old who had a back problem,” says McLindon. She spent most days on the couch watching TV. Soon after she got her bike, she was training for special-needs triathlons (铁人三项). In a magazine interview, she said, “I always knew there was an athlete me.”
So far, the foundation has given away 450 bikes, and that’s just a start. “I do a lot of things. I run a lot of companies.” McLindon says. “But getting these kids their bikes most important thing that I do.”
1. What inspired Andrew McLindon to search for a special bike online?| A．His enthusiasm for cycling. |
| B．His ambition to start a new business. |
| C．His goal to invent a new type of bike. |
| D．His desire to help a boy with balance issues. |
| A．To sponsor special-needs triathlons. |
| B．To raise money for pediatric rehab clinics. |
| C．To provide adaptive bikes for disabled children. |
| D．To offer a social network to children with special needs. |
| A．They can offer medical treatment. |
| B．They can provide exercise and fun. |
| C．They can relieve physical suffering. |
| D．They can improve academic performance. |
| A．It is a worthwhile effort. |
| B．It is a temporary solution. |
| C．It is financially rewarding. |
| D．It is technically challenging. |
8 . Weald & Downland Living Museum
Fun fact
Over 50 historic buildings from across the Weald and Downland area have been dismantled(拆除)and then reconstructed across a lovely 40-acre site in the South Downs national park. The collection of buildings represents almost a thousand years of rural life in south-east England: furnished just as they would have been in the past—complete with the homes, farms and public buildings. There’s a sense of exploring a real village as you wander between them along green paths, stopping to climb the stairs of a 17th-century craftsman’s(工匠)cottage to lie on the straw bed or sheltering from a shower in a smoky, 14th-century hall.
Getting there
The Stagecoach 60 bus service from Chichester to Midhurst stops just five minutes away at Grooms Yard, Singleton. The nearest railway stations are Chichester(2 miles)and Haslemere(7 miles). The museum is on Town Lane in Singleton, reached via the A286 from Chichester to Midhurst. Parking is free and there are disabled parking spaces opposite the museum shop.
Value for money?
Yes. It’s not cheap but it’s a special experience that easily fills a day. Plus, it’s a valuable cause worth supporting. Adults £14, children 5-17 and students £6.50, under-4s free, family £38(two adults and two children)or £25(one adult and three children).
Opening hours
Daily 10am-5pm(last entry 4pm).
1. What can visitors do in Weald & Downland Living Museum?| A．Take a shower in the hall. | B．Stay overnight at a cottage. |
| C．Learn construction techniques. | D．Explore rural life centuries ago. |
| A．It charges parking fees. | B．It has varied opening hours. |
| C．It is inconveniently located for bus riders. | D．It offers the disabled thoughtful service. |
| A．£25. | B．£34.5. | C．£38. | D．£41. |
内容包括：
1.自己是否应该学习美术；
2.学习美术的有什么难度；
3.费用的问题。
注意：
1.词数80左右；
2.可以适当增加细节，以使行文连贯。
Dear Li Mei,
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Yours faithfully,
Li Hua
