Nowadays, some famous tourist attractions are crowded of tourists during the holidays, which makes it possible for tourists to enjoy themselves. It reflects the fact what it is difficult to travel to crowded tourist attractions. Therefore, to travel in the holidays made no sense. That is why many people prefer to stay at home rather than to go out. In my opinion, the government should devote its energies to relieve the stress of tourist attractions. Some effective measure can be taken. For example, the number of tourists to famous tourist attractions should limited and citizens should not travel at a same time. Only in this way can tourists enjoy our holidays.
From all aspects, it is fair
The search and rescue team on Earth also demonstrated its
Besides, the return of the crew also signaled that the Chinese space station had finished
2022 is a key year. Two experimental modules, two manned spaceships carrying six astronauts, and two cargo (货物) spaceships will take
3 . While it may seem impossible for a simple question to change everything, that is in fact my story. I was a relatively
With my business, I often
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Today I’m a supporter of Access Consciousness. I’m
| A．happy | B．reliable | C．academic | D．honest |
| A．annoying | B．disordered | C．appealing | D．personal |
| A．addiction | B．separation | C．tolerance | D．existence |
| A．delivered | B．attended | C．ignored | D．mentioned |
| A．pointed | B．contributed | C．flew | D．walked |
| A．particularly | B．basically | C．naturally | D．usually |
| A．essays | B．pens | C．questions | D．records |
| A．whether | B．when | C．why | D．where |
| A．heard | B．dropped | C．moved | D．read |
| A．performed | B．inquired | C．declined | D．protested |
| A．stand out | B．give up | C．wake up | D．pass out |
| A．anxious | B．confident | C．satisfied | D．ordinary |
| A．sadder | B．lighter | C．more interested | D．more embarrassed |
| A．feelings | B．events | C．belongings | D．doubts |
| A．making up for | B．looking up to | C．picking up on | D．putting up with |
| A．turned to | B．searched for | C．came across | D．played with |
| A．business | B．head | C．dream | D．promise |
| A．no longer | B．so far | C．in general | D．at least |
| A．abandoned | B．toured | C．convinced | D．understood |
| A．admirable | B．professional | C．impressive | D．cheerful |
4 . Bike safety tips
Before you go on your next two-wheeled adventure, make sure you’re familiar with the ins and outs of bicycle safety.
Many of the safety recommendations are the same for both types of bikes. Wear a helmet (头盔). Ride with the flow of traffic rather than against it. Make sure you’re visible to motorists — even some traditional bikes now come with lights.
·Be sure your bike is ready to ride. That starts with checking that the tires are inflated (充气) and the brakes (刹车) are working properly. If the bicycle hasn’t been used for a while, take it for a tune-up before you take it for a ride. “
·
·Be aware of your speed. This is important for e-bike riders. “
| A．Know the rules of the road |
| B．Know how to use your arm to signal turns |
| C．Avoid waving your arms randomly from side to side |
| D．For an e-bike, also make sure your battery is charged |
| E．This holds true whether you’re riding a traditional bike or an e-bike |
| F．With the ability to go faster comes the responsibility to know when you should slow down |
| G．Understanding an e-bike component and how it works might help you ride it more efficiently |
5 . A new study involving the Chinese mountain cat of the Tibetan Plateau has determined that this type of wildcat did not give rise to a separate lineage (血统) of domesticated cats in Asia, as some researchers had supposed, reports David Grimm for Science. The finding supports the conclusions of previous research that suggested all modern domesticated cats originated from the African wildcat, a subspecies of wildcat that appears to have first been domesticated in the Middle East around 6,400 years ago.
The new study, published last week in the journal Science Advances, collected and sequenced the genetic (基因的) material of 27 Chinese mountain cats, 239 Chinese domestic cats and four Asiatic wildcats. The Chinese mountain cat is so rare and hard to find that the researcher’s samples all had to come from museum specimens (样本), roadkill and zoo animals, reports Jaime Chambers for Science News.
The curiosity as to whether the Chinese mountain cat might have contributed genes to at least some populations of modern domestic cats comes partly from the deep 5,300-year history between humans and cats in China and partly because the Chinese mountain cat had never been included in past comparative genetic studies, according to Science News.
The genetic results suggest that the Chinese mountain cat is a subspecies of wildcat rather than its own separate species. This could have a negative impact on the conservation of the Chinese mountain cat, which is listed as “vulnerable (易危)” by the International Union for Conservation of Nature (IUCN) and is estimated to have a global population of fewer than 10,000 individuals. Per the IUCN, the cat’s population is in decline, largely due to habitat loss, poisoning and illegal hunting for its coat.
While there remains a lot of argument over how exactly to classify the Chinese mountain cat, Jim Sanderson, a wildlife ecologist with the conservation organization Re: wild, has argued for the Chinese mountain cat to be declared its own species. “The belief is that if it’s not a separate species, nobody cares. We ‘re living in an age of extinction,” Sanderson tells Science. “The Chinese mountain cat deserves every bit as much attention as the panda.”
1. In which way is the new study different from previous ones?| A．The time it has taken is much longer than before. |
| B．Most of the researcher’s samples are from zoo animals. |
| C．More Chinese domestic cats and wildcats are included. |
| D．The Chinese mountain cat is involved in genetic testing. |
| A．It is likely to die out in the near future. | B．It is being caught and sent to Africa. |
| C．It is damaging the local ecosystem. | D．It is now a threat to domestic cats. |
| A．To distinguish it from the other cats. | B．To end the argument over its classification. |
| C．To draw more tourists to the Tibetan Plateau. | D．To raise public awareness about its protection. |
| A．To make the true facts of certain cats clear. | B．To identify cat species from around the world. |
| C．To explore the history between humans and cats. | D．To report a new study on cats in the Middle East. |
6 . For decades, Frederick Banting and Charles Best were believed to have contributed to the discovery of insulin (胰岛素) between 1921 and 1922 at the University of Toronto (U of T). In 1923, the university created the Banting and Best Chair of Medical Research, followed by the Banting and Best Department of Medical Research and the Banting Institute (1930) and, in 1954, the Best Institute.
However, the 1923 Nobel Prize in Medicine was awarded jointly to Banting and John J. R. Macleod. The physiology professor, who headed up the laboratory where the research took place, had been much more involved in the research than was later acknowledged. After learning that Macleod was honoured alongside him rather than Best, Banting shared his prize money with Best. Macleod, meanwhile, split his share of the prize with the fourth member of the team, J. Bertram Collip, a young biochemist from the University of Alberta. Collip’s essential contribution was producing a purified pancreatic extract (胰腺提取物), which was administered on Jan. 23, 1922, to Leonard Thompson, a 14-year-old patient at Toronto General Hospital. That shot was the first successful human trial of insulin.
Much of the early research on insulin took place in the old medical school building at U of T. Opened in 1903, it featured state-of-the-art technology, including facilities for animal research. But Banting, a war-time surgeon, lecturer and medical researcher, was unimpressed. When he arrived in 1921, the operating room had lain unused for years and needed a thorough cleaning to make it usable. Located just below the building’s roof, it also became unbearably hot during the summer. Early laboratory testing took place right there.
In 1982, Michael Bliss, a history professor at U of T, restored Macleod and Collip to their rightful place as co-discoverers of insulin. In 1990, a new plaque (牌匾) acknowledging the cooperation was put up outside U of T’s current medical sciences building.
1. What can be learned about U of T?| A．It was established almost 100 years ago. |
| B．It witnessed an important advance in medicine. |
| C．It developed rapidly thanks to Banting and Best. |
| D．It had close cooperation with Toronto General Hospital. |
| A．Tolerant. | B．Doubtful. | C．Grateful. | D．Sympathetic. |
| A．Unexperienced teammates. | B．Tiring and endless tasks. |
| C．The poor working environment. | D．The unreasonable salary. |
| A．The 1923 Nobel Prize in Medicine. |
| B．The truth behind the discovery of insulin. |
| C．The long history of U of T and its influence. |
| D．The deep friendship among several scientists. |
7 . What have humans done to deserve dogs? They greet us when we come home, comfort us when we’re sad and generally act as loyal companions.
Now, researchers are investigating whether tumors (肿瘤) in dogs may help treat tumors in humans. In early April, the Jackson Laboratory began collecting samples of canine (犬的) tumors. Cells from these tumors inserted into mice could help test new drugs and improve our understanding about how cancer develops and progresses.
Although cancer results from many factors, genes play a critical role. That means the genetic makeup of a tumor can help determine which drugs work against it. So having a broad and diverse pool of genetic makeups increases the chances of finding the right way to attack each disease. This thinking is particularly relevant for rare cancers and rare mutations (突变). Drawing from a larger pool means more genetic mutations to research.
And using tumors from dogs is a nearly ideal way to widen that pool. They’re exposed to many of the same environmental factors that might cause cancer in their owners, notes Dr. Christopher Fulkerson. Some bone and brain cancers are far more common in dogs than they are in people, making samples easier to find.
In many cases, the cells in a dog’s cancer look and act the same as they would in a human. They can even carry the same genetic mutations. However, not all canine cancers will be particularly helpful for human-focused research. For some types, the similarities between human and dog diseases will be significant. But when they aren’t, warns Dr. Jaime Modiano, the differences could have serious consequences for drug development.
But even when the research doesn’t advance knowledge of human cancers, it could still help improve the treatment of dogs diagnosed (确诊) with cancer. That's the least we can do for our faithful friends.
1. What are the purposes of collecting canine tumors?| A．To help design new drugs. |
| B．To better understand cancer. |
| C．To prove dogs are our faithful friends. |
| D．To show cancer results from many factors. |
| A．Many dogs have bone and brain cancers. |
| B．Dogs and their owners are good companions. |
| C．Dogs and their owners have similar living conditions and cancer types. |
| D．Using tumors from dogs can help determine which drugs work better. |
| A．It’s useless to study cancers from dogs. |
| B．Studies on cancers from dogs will bring harmful results. |
| C．Cancers from dogs may not be helpful for fighting human cancers. |
| D．Some similarities between human and dog diseases are significant. |
| A．Unconcerned. | B．Doubtful. |
| C．Pessimistic. | D．Optimistic. |
8 . Harvard University’s Claudia Goldi n has won the 2023 Nobel Prize in Economics for her research on women in the labor market. She studies the changing role of working women through the centuries, and the causes of the consistent pay gap between men and women. The award comes with a prize of about $1 million. Goldi n is the third woman to receive the prize.
“Claudia Goldin’s discoveries have vast society significance,” said Randi Hjalmarsson, a member of the Nobel committee. “She has shown us that the nature of this problem or the source of these possible or underlying gender gap s changes throughout history and with the course of development.”
Goldin’s research showed that women’s role in the job market has not moved in a straight line, but has risen and fallen with social regulations and women’s own ideas about their prospects in the workplace and the home. Some of these ideas are shaped early in life and are slow to change.
“She can explain why the gender gap suddenly started to close in the 1980s and the surprising role of the birth control pill and changing expectation,” Hjalmarsson said. “And she can explain why the earnings gap has stopped closing today and the role of parenthood.”
Looking back the history of women in the workplace was easier said than done. The Nobel committee said Goldi n often had to deal with spotty records.
Women currently fill nearly half the jobs in the U. S. but typically earn less. They briefly outnumbered men on pay lists in late 2019 and early 2020, but women dropped out of the workforce in large numbers early in the pandemic (大流行病), and their ranks have only recently recovered.
Some forecasters think women’s role in the workplace will continue to grow as they pass men on college campuses and as service fields such as health care expand.
“Understanding women’s role in labor is important for society,” said Jakob Svensson, chair of the prize committee. “Thanks to Claudia Goldin’s groundbreaking research, we now know much more about the underlying factors and which barriers may need to be addressed in the future.”
1. Why was the 2023 Nobel Prize in Economics awarded to Goldin?| A．She realized the importance of women in the labour market. |
| B．She researched the changing role of working women for a long time. |
| C．She found the causes of income inequality between men and women. |
| D．She did pioneering studies on the role of women in the labour market. |
| A．Organic. | B．Potential. | C．Fundamental. | D．Preferred. |
| A．Parenthood played an important role. |
| B．Women’s own ideas about work have improved. |
| C．The income gap between men and women has been narrowed. |
| D．Birth control pills and changes in expectation played an amazing role. |
| A．Gender pay gap remains. |
| B．Women employed had briefly outperformed men. |
| C．Women’s role in the workplace will continue to grow. |
| D．Many women pulled out of the workforce in the pandemic. |
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删除：把多余的词用斜线（\）划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者（从第11 处起）不计分。
I am writing to express my thank for your company while I was on this summer camp, which was the unforgettable experience for me. Through visit American universities, I got a good knowledge of them in some way, which broadened my horizon and introduce me to more about American culture. Besides, during the summer camp, I made some American friends, that gave me lots of assistance. Moreover, in an environment exposing to English language, my English listening and speaking skills great got improved. Would you like join the summer camp in China in next summer? I'll be your best guide and you can experience tradition Chinese culture. I'm looking forward to your coming.
1. What does pressing 2 allow people to do?
| A．Speak to an operator. | B．Hear movie information. | C．Purchase tickets. |
| A．In a forest. | B．In a city. | C．On a farm. |
| A．A movie about monsters. |
| B．A movie about friendship. |
| C．A movie about a restaurant. |
| A．At 7:00. | B．At 9:30. | C．At 10:30. |
