1 . As you walk around the UK in March, you might notice that some people are wearing a daffodil(水仙花) on their coats. The British wear these yellow flowers to show they support one of this country’s best-known charities: the Marie Curie Cancer Care.
The Marie Curie Cancer Care tries to ensure everyone diagnosed with cancer is cared for in the best possible way. It also helps fund research into possible cures through other organizations. Founded in 1948, it has been continuing with its goal ever since.
The charity was named after Marie Curie, a renowned scientist. She experimented with newly-discovered elements to create the theory of radioactivity. Unfortunately, over-exposure to the radioactive elements made her develop a disease and die in 1934. Marie Curie won the Nobel Prize in two different fields. Because of her pioneering work which led to chemotherapy (化学疗法), the charity shared the name of Marie Curie.
The daffodil is one of the first plants to flower during spring in the UK, which marks the return of flowering plants to the ecosystem after winter. Because of this, the charity uses the daffodil as a metaphor for bringing life to other people through charitable giving.
Everyone you see wearing a daffodil has donated money to the charity, but each daffodil is worth only what you want to pay for it. The charity does ask that you stick to a minimum amount of £1.
The charity encourages people to start wearing their daffodils at the start of March, when the “Great Daffodil Appeal” kicks off. But that doesn’t mean you can only wear them in March. People are sometimes seen walking around with daffodils on their clothes all year round.
1. What does it mean when the British wear a daffodil on their coats?| A．They support a charity. | B．They are recovering from cancer. |
| C．They’ve been helped by a charity. | D．They’ve been diagnosed with cancer. |
| A．Beautiful. | B．Modest. | C．Famous. | D．Humorous. |
| A．Because patients required that. | B．Because it was launched by her. |
| C．Because she greatly supported it. | D．Because it could show respect for her. |
| A．It can be used as medicine. | B．It’s thought to stand for hope. |
| C．It’s widely worn worldwide. | D．It’s sold to the wearers at a high price. |
增加：在缺词处加一个漏字符号（Λ），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，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。
My favorite inventor is Alexander Graham Bell. When he was a small kid, Bell started to show much interest helping deaf people communicate, so his mother was almost entirely deaf. This interest led to his invention of the microphone. Beside, he also invents the telephone in 1876. However, at the beginning, that he actually tried to design was not a telephone but a multiple telegraph. During his search to improve the telegraph, Bell invented the first telephone. One of his most famous saying is: “Leave the beaten track occasional and dive into the woods. Every time you do so you will be certain to find something which is completely new in your life.” Indeed, what it was his acute curiosity that made his success. Bell was an inventor all his life. He made his first invention at 11 but his last invention at 75.
3 . In 1946, 23-year-old John Goodenough headed to the University of Chicago. When he arrived with a dream of studying physics, a professor
Recently, Dr. Goodenough
When I asked him about his late-life
Dr. Goodenough started in physics and got
We tend to assume that creativity
| A．teased | B．taught | C．threatened | D．warned |
| A．region | B．job | C．field | D．experiment |
| A．showed | B．read | C．told | D．brought |
| A．hated | B．ignored | C．valued | D．took |
| A．discussion | B．disagreement | C．argument | D．quarrel |
| A．looked for | B．searched for | C．applied for | D．waited for |
| A．helps | B．develops | C．proves | D．works |
| A．blow up | B．spread out | C．kill off | D．speed up |
| A．formally | B．happily | C．widely | D．suddenly |
| A．elected | B．titled | C．sent | D．awarded |
| A．success | B．hobby | C．effort | D．belief |
| A．hesitate | B．struggle | C．get | D．come |
| A．give up | B．set about | C．keep on | D．dream of |
| A．involved | B．bored | C．satisfied | D．pleased |
| A．already | B．only | C．also | D．never |
| A．news | B．ideas | C．chances | D．choices |
| A．windows | B．roads | C．hearts | D．doors |
| A．possible | B．special | C．secret | D．right |
| A．fades | B．improves | C．increases | D．connects |
| A．ambitious | B．creative | C．attractive | D．famous |
4 . The third﹣generation hybrid rice which was developed by Yuan Longping, the "father of hybrid rice",and his team underwent its first public yield（产量）monitoring from Monday to Tuesday and achieved high output. The final yield of the tested variety, G3﹣1S/P19, came to 1046.3 kg per mu （about 667 square meters）, based on two plots of land in Qingzhu Village under the city of Hengyang in central China's Hunan Province.
"Some previous high﹣yielding hybrid rice varieties in China took 160 to even 180 days from sowing to harvesting, while the figure was shortened to around 125 days for the new variety. This is one of the most important characteristics of the third﹣generation hybrid rice that can reduce the use of pesticides and fertilizers, thus reducing cost and improving production efficiency. " said Qian Qian, the deputy director of the China National Rice Research Institute.
Unlike the previous two generations that required a large amount of water and fertilizers as well as demanding growing conditions and technological support, the third﹣generation hybrid rice is easier to be cultivated by ordinary farmers. So the soil, altitude and climate of the test site were not "ideal conditions" carefully selected beforehand but were close to the paddies of ordinary farmers.
Nowadays, China's average yield of rice is about 500 kg per mu. Ordinary farmers can produce 600kg to 700 kg of rice per mu by growing some excellent second﹣generation hybrid rice varieties. However, under the same planting conditions and environment, the yield of the third﹣generation hybrid rice could reach 800 kg per mu. China now feeds around 20 percent of the world's population with less than 9 percent of the world's arable（可耕种的）land.
At present, Yuan's team has nine third﹣generation hybrid rice combinations under trial, which are expected to achieve commercial seed production in the following three to four years and hope to apply the technology into the research of sea rice. The third﹣generation hybrid rice has the comprehensive strength to promote a greener and more sustainable development of China's rice production with higher quality and yield.
1. What feature of the new hybrid rice does Qian Qian mainly talk about？| A．It saves a lot more water. |
| B．It achieves a higher yield. |
| C．It saves much more farmland. |
| D．It has a shorter growing period. |
| A．The ordinary farmers master planting technology. |
| B．The researchers want to reduce the experiment cost. |
| C．The growing conditions the new hybrid rice needs are simple. |
| D．The previous rice farming provides researchers with experience. |
| A．The high output of the third﹣generation hybrid rice. |
| B．The promising future of the new hybrid rice variety. |
| C．The advanced technology of the research on hybrid rice. |
| D．The differences between the three hybrid rice varieties. |
| A．The Development of China's Rice |
| B．The Contribution of the Great Scientist |
| C．The High Yield of the New Hybrid Rice |
| D．The Way to Feed the World's Population |
When the action movie Wolf Warrior II broke China’ s box-office records in 2017, a less prominent (突出的) figure unexpectedly left a strong impression
Two years ago, a real military scientist Dr. Chen Wei
When SARS broke out in China in 2003, Dr. Chen and her team isolated (隔离) the virus and identified (确认) the cause of the disease without delay.
After SARS, the forward-looking woman shifted her attention to Ebola which claimed (夺去生命) over 10,000
From SARS and Ebola to COVID-19, Dr. Chen has spent half of her life fighting against life-threatening viruses.“ We do not have any other choices but
6 . Our history is rich with remarkable scientists who helped advance the development of our society. Here are some of them.
Isaac Newton (1643-1727)
Isaac Newton is considered by many to be the greatest scientist of all time. There weren’t many subjects that Newton didn’t have a significant impact on—he was one of the inventors of calculus (微积分), built the first reflecting telescope, and helped establish the field of classical mechanics(力学). He was the first to divide white light into its component colors and he gave us the three laws of motion, now known as Newton’s laws.
Emmy Noether (1882-1935)
Emmy Noether was a German mathematician particularly known for Noether’s theorem, which establishes a fundamental connection in symmetries (对称) in physics. It is considered a milestone of modern theoretical physics. Her contributions are foundational in various branches of mathematics as well, such as abstract algebra, algebraic geometry and topology.
Carl Friedrich Gauss (1777-1855)
Carl Friedrich Gauss was born in a poor family in Germany and quickly showed himself to be a brilliant mathematician. He published Disquisitiones Arithmeticae, a foundational textbook that laid out the principles of number theory. Many of the advancements that we’ve made in using computers to solve problems are solved using number theory. Gauss was productive, and his work on number theory was just a small part of his contribution to math.
John von Neumann (1903-1957)
Before 1940, John von Neumann focused primarily on mathematics. Then he turned to its practical use, designing the structure of nearly every single computer today. Right now, whatever device that you are reading this on, whether a phone or computer, is cycling through a series of basic steps billions of times over each second, steps that were first thought up by John von Neumann. Remarkably, He proposed a theory of global warming caused by human activity.
1. Who put forward a theory about an environmental issue?| A．Isaac Newton. | B．Emmy Noether. | C．Carl Friedrich Gauss. | D．John von Neumann. |
| A．They showed a gift for physics since young. |
| B．They contributed a lot to the computer field. |
| C．They were highly established in mathematics. |
| D．They were from a similar family background. |
| A．Environment. | B．Figure. | C．Culture. | D．News. |
7 . A NASA climate research scientist, Cynthia Rosenzweig, who has spent much of her career explaining how global food production must adapt to a changing climate, was awarded the World Food Prize on Thursday.
“We basically cannot solve climate change unless we address the issues of the greenhouse gas emissions from the food system, and we cannot provide food security for all unless we work really hard to develop adaptable agricultural systems,” she told The Associated Press in an interview.
Rosenzweig, who describes herself as a climate impact scientist, grew up in Scarsdale, New York, a suburban area that she said led her to seek out life in the country. Later, she moved to Italy, and developed a passion for agriculture. After returning to the United States, she focused her education on agronomy (农学).
She worked as a graduate student at the Goddard Institute for Space Studies in the early 1980s, when global climate models were beginning to show the effects of human-generated carbon dioxide on the global climate. As the only team member studying agronomy, she researched the impact on food production and has been working since then to answer those questions.
Rosenzweig’s work led to the Environmental Protection Agency’s first prediction of the effects of climate change on the nation’s agricultural regions in the agency’s assessment of the potential effects of climate change on the United States in 1988. She was the first to bring climate change to the attention of the American Society of Agronomy and she organized the first sessions on the issue in the 1980s. The research organization she founded, AgMIP, develops adaptation packages, which could include the use of more drought-tolerant seeds and improved water management practices.
Even the largest agribusiness corporations have shown a willingness to listen. Some models her colleagues have developed show how businesses could be effected by climate change and how they have a role to play in reducing the impact on climate.
“It’s really a global partnership of all the global food systems to come together to restrain climate change and maintain the food security for the planet,” she said.
1. What can we learn from paragraph 2?| A．Plants can hardly cause greenhouse gas emissions. |
| B．Issues of food security will result in climate change. |
| C．Improving food systems will help address climate change. |
| D．Some adaptable agricultural systems have been put into use. |
| A．Modest. | B．Devoted. | C．Adaptable. | D．Warm-hearted. |
| A．Rosenzweig’s contributions. | B．Rosenzweig’s challenges. |
| C．Rosenzweig’s expectations. | D．Rosenzweig’s backgrounds. |
| A．The models. | B．The practices. |
| C．The colleagues. | D．The businesses. |
