Having grown up on a farm near Alliston, Ontario, Frederick Banting was a good worker but felt uncomfortable and unaccepted in a town school. Fred hated school. After graduation, he began studies to become a minister. When that did not go well, he changed his goal to medicine. After World War I, the young Canadian doctor returned home to set up his practice. Just then he began to focus on articles on diabetes (糖尿病), a disease that had cost the life of a neighbor’s child.
To solve the problem of this disease, Fred asked Dr. J.J. R. Macleod at the University of Toronto for help to lend him a laboratory and was given a young assistant named Charles Best. Fred and Charles worked day and night, but early results in producing the hormone (激素) preparation they called insulin (胰岛素) were discouraging. Many of the animals they treated died. Finally one animal kept alive for several weeks. The team appeared to be finally getting somewhere, and it was time to move on to human subjects. Before treating human patients, however, Fred and Charles tested the safety of their insulin on each other. Their tests were a triumph.
The first patient to be treated was a fourteen-year-old boy named Leonard. The year was1921. The poor boy weighed only seventy-five pounds, and he was hardly alive. But the new insulin treatment by Fred and Charles was a great success. Leonard gained weight, and his health greatly improved.
In 1923, the Nobel Prize in medicine was awarded both to Canadian doctors Frederick Banting and J.J.R. Macleod. Fred could have made himself a millionaire with his discovery. Instead, he sold his patent for the production of insulin to the University of Toronto—for one dollar—so that the drug could be marketed cheaply and thousands of lives could be saved and improved.
Fred was just ordinary in many respects but he was a man with the strong will to get to his goal. He had the heart of a true Canadian hero.
1. What’s the main purpose of paragraph 1?A.To tell why Fred graduated early. |
B.To show why Fred changed his life goal. |
C.To introduce how Fred took up the research. |
D.To tell what Fred experienced in the war. |
A.Reference. | B.Victory. | C.Challenge. | D.Model |
A.To make money. | B.To earn reputation. |
C.To promote insulin. | D.To benefit patients. |
A.An Unlikely Hero | B.A Chance Discovery |
C.A Successful Test | D.A Well—known Scientist |
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【推荐1】The World Economic Forum predicts the global population will hit 9.8 billion by 2050, which means we might need to grow as much as double the amount of food we do today and do it without significantly consuming limited resources such as land and water.
But there are reasons to be positive. Historically, human intelligence has risen to the population challenge. 8,000 years ago in the first agricultural revolution, the plough (犁) transformed productivity. In the 1 800s, inventions such as the seed drill brought a degree of mechanization to farming. Then, in the mid-20th century, there were major breakthroughs in artificial fertilizer and plant science.
Now, we are entering a fourth age of agriculture. Innovation is exploding. The digital transformation of agriculture is not theory. It’s real. And it’s having a huge impact across all aspects of farming.
In April 2020, Chinese drone (无人机) maker XAG organized a rice seeding demonstration in Guangdong province. First, it invited two workers to spread 5kg of rice seeds the traditional way- by wading across 1,200 square metres of waterlogged field. The laborious process took 25 minutes. Then it unleashed (释放) its XAG XPlanet drone on the same task. The unmanned aerial system followed a pre-programmed route and threw rice seeds from the air. It completed the job in 120 seconds. XAG claims its system can use up to 90 per cent less water and 30 percent fewer chemicals than traditional technique.
Barcelona-based startup Faromatics has also attracted a lot of attention for its EU-funded invention: a robot called the ChickenBoy. It lets chicken farmers autonomously monitor their stock. The robot glides along the ceiling and uses a set of sensors to measure temperature, air quality, light and sound in poultry housing. Farmers can use a cloud platform to set the ChiekenBoy to send mobile alerts.
The task of feeding 9.8 billion mouths by 2050 is one of the greatest facing humanity, but thanks to technology, there is good reason to be confident for the future.
1. What is the purpose of paragraph 2?A.To express the author’s confidence in the human wisdom. |
B.To tell us some challenges in the agricultural development. |
C.To show us the present situation of the world food shortage. |
D.To call on the government to take some effective measures. |
A.It saves more money than the manual seeding. |
B.It’s more efficient and environmentally friendly. |
C.It can rapidly reduce wastage and improve yields. |
D.It helps farmers make better decisions about seeding. |
A.Its system needs to be improved. |
B.It aims to attract farmers’ attention, |
C.It was invented y a chicken farmer. |
D.It helps farmers look after the chicken. |
A.Smart farming. | B.Agricultural revolution. |
C.Plant science. | D.Artificial intelligence. |
1. The main reason for one’s poor memory is that _______.
A.his father or mother may have a poor memory |
B.he does not use his arm or legs for some time |
C.his memory is not often used |
D.he can’t read or write |
A.you can’t use them any more |
B.they will become stronger |
C.they become weak and won’t become strong until you use them again. |
D.they will become neither stronger nor weaker |
A.Your memory works in the same way as your arms or legs. |
B.Your memory, like your arms or legs, becomes weak if you don’t give it enough chance for practice. |
C.Don’t learn how to read and write if you want to have a better memory. |
D.A good memory comes from more practice. |
A.they have save much trouble |
B.they have saved much time to remember things |
C.they have to use their memories all the time |
D.they can’t write everything in a little notebook |
A.Don’t Stop Using Your Arms or Legs | B.How to Have a Good Memory |
C.Strong Arms and Good Memories | D.Learn From the People |
【推荐3】"Hello!" You type into the chat box. There's a slight feeling of excitement flowing through your fingers, and you can't wait for a reply. You think, "There's probably nothing more exciting than this."
With communication from all corners of the world possible at the ease of your fingers, we are now witness to an advanced form of the hand shake and physical conversations: online friendships.
Alarmingly, according to Internet Safety 101, almost half of young adult users have received upsetting messages, with 92 percent posting their own real names and identification online and 58 percent thinking it doesn't cause concern. And though some parents may be biting their fingernails in fear right now, more than half of the youth have admitted to making their friends online and a good majority regularly text them.
Though the statistics are daunting, we hope, we haven't scared you off! Researchers actually found that pursuing online friendships could be beneficial. Penn State University reported that this was especially the case for those with social anxiety, as they might form a stronger comfort bond with their peers through the screen rather than a face-to-face meeting.
Additionally, online interaction may increase your self-confidence. In our current situation of isolation, perhaps that perfect connection from the safety of our homes is all it takes to make things just a little more bearable.
In the end, it all depends on you. Whether or not your search for a friend bears fruit lies in your approach, and though I'm not a great relationship master, I have some tips that will aid you in your exploration for the "BFF" of your dreams.
1. What can we infer from the third paragraph?A.The youth often meet online friends in reality. |
B.Most Internet users like texting to their online friends. |
C.Many parents like biting fingernails when worried. |
D.Most young adults lack awareness of Internet safety. |
A.Disappointing. | B.Misleading. | C.Frightening. | D.Dissatisfying. |
A.Objective. | B.Supportive. | C.Negative. | D.Unclear. |
A.How to get on well with online friends. | B.How to find online best friends. |
C.How to keep in touch with online friends. | D.How to benefit from dream online friends. |
【推荐1】Lise Meitner was born in Vienna, Austria on November 7, 1878. She was the third child of eight children in the family. Her father Philipp, who was a lawyer, hired personal teachers to teach the children, and she learned mathematics very well. Music was important to the family, and all the children learned to play the piano. The Meitner children were taught to listen to their parents, but to think for themselves.
When Lise Meitner finished school at the age of 14, she could not go to college for higher education, as were all girls in Austria. But, inspired by the discovery of Henri Becquerel, she was determined to study radioactivity(放射性).
When she turned 21, women were finally allowed into Austrian universities. Meitner was admitted into the University of Vienna; there she was excellent at math and physics and earned her doctor’s degree in 1906. She wrote to Marie Curie, but there was no room for her in the Paris lab, so Meitner made her way to Berlin. There she worked with Otto Hahn, but as an Austrian Jewish woman, she was excluded from the main labs and allowed to work only in the basement.
In 1912, the pair moved to a new university and Meitner had better lab equipment. Though Meitner was forced to escape Nazi Germany in 1938, they continued to cowork. Meitner continued her work in Sweden and later they found the phenomenon “nuclear fission(核裂变)”. The discovery, which finally led to the atomic bomb, won Hahn the Nobel Prize in 1944. Meitner, ignored by the Nobel committee, refused to return to Germany after the war and continued her atomic research in Stockholm into her 80s.
1. What can we learn about Lise Meitner’s childhood?A.She received a poor education. | B.She often went against her parents. |
C.She did well in math. | D.She lived a hard life with her family. |
A.She wasn’t interested in college. |
B.Girls in Austria were not permitted. |
C.Her family couldn’t afford the school fees. |
D.She wanted to study radioactivity by herself. |
A.She should find a better partner than Otto Hahn. |
B.She made the wrong college choice. |
C.She should have kept her identity a secret. |
D.She was unfairly treated when working in Berlin. |
A.Positive. | B.Unclear. |
C.Angry. | D.Pleased. |
【推荐2】Say the phrase “female environmental pioneers,” and among the names you will hear are Rachel Carson, who wrote pesticides; chimpanzee expert Jane Goodall; and 17-year-old climate-change activist Greta Thunberg. To mark Women’s History Month, Kidspost is sharing the story of an environmental pioneer who is not that famous but equally remarkable.
At age 3, Sylvia Earle found her lifelong passion while playing on a beach. A wave suddenly came up and knocked her over.
“My mother ... saw the big smile on my face and let me run back in,” Earle told a TV interviewer years later. “And I’ve been running back in ever since.”
Earle is now 84 years old and has spent a lifetime exploring the world’s oceans and working to protect them from pollution, overfishing and other threats.
She is a pioneer in using scuba gear. Scuba gear lets divers take breath underwater. She holds the world record for the deepest untethered walk on the ocean floor at 1,250 feet. This means she was not tied to anything when she was walking underwater. During this exploration, she planted a U.S. flag.
In 1998, Time magazine gave Earle its first Heroes for the Planet award. She was the first female chief scientist at the National Oceanic and Atmospheric Administration (NOAA). It is the U.S. ocean and atmosphere group. She was also elected to the National Women’s Hall of Fame.
Earle has spent her life teaching people about the ocean. She notes how much it affects the weather, and what we eat and drink. She has something to say to those who don’t understand why the ocean matters. “They should know that with every breath they take, every drop of water they drink, the ocean is touching them,” Earle says. “You should treat the ocean as if your life depends on it— because it does.”
1. What does Earle’s lifelong passion refer to?A.Teaching people how to dive. | B.Writing articles for magazines. |
C.Exploring and protecting oceans. | D.Providing equipment for divers. |
A.Earle is a world record holder. |
B.Earle’s mother is in support of her work. |
C.Earle is a remarkable British ocean explorer. |
D.Earle is the only female chief scientist at NOAA. |
A.brave and conservative. | B.devoted and courageous. |
C.determined and rigid. | D.ambitious and modest. |
A.People should stop overfishing and eating seafood. |
B.The ocean plays a significant role in human’s life. |
C.The weather has a far-reaching effect on the ocean. |
D.The exploration of the ocean can be done without limit. |
【推荐3】200 years after Darwin’s birth, studies have found his new life details at the University of Cambridge. Six learner-centered ledgers ( 账本) discovered in the university show this.
He lived in the most expensive rooms provided for a rich student at his time.
Darwin’s bill topped 636 pounds during his three years of study at Cambridge. Later he described this time as the most joyful of his happy life. That large sum would have been fairly common for a student at Cambridge in the 19th century.
In those days, Cambridge was full of rich students living a pretty good life and Darwin was just one of them.
A.Thanks to the richness, he was able to hire servants to help with the daily life. |
B.So he paid five and a half pence extra each day to have vegetables. |
C.He enjoyed the kind of comfortable university life that most of today’s students can only dream about. |
D.He had several people to help him to deal with the daily housework. |
E.The bills were paid by his wealthy father, Robert Darwin, a doctor. |