The disease malaria(疟疾) has caused trouble to mankind throughout history. In the 1860s as the drug called chloroquine began to lose its effectiveness, malaria began to appear again in Southeast Asia. Every country in the world then poured huge amounts of human resources into discovering another anti-malaria drug In 1964, China put forward the plan to seek a breakthrough from among traditional Chinese medicinal drugs. There was no great discovery until 1981. When Chinese scientist Tu Youyou gave a speech titled" Chemical Research into Artemisinin(青蒿素)”. at an international conference of the WHO. The speech was regarded as a lifeline for malaria sufferers.
Tu Youyou graduated from the Medical College of Peking University. In 1969, just as the research into treating malaria had reached dead end, the 39 year-old Tu, in order to overcome this terrible problem, took on the job as head of a research team into this problem. The first thing Tu did was interview experienced doctors of Chinese medicine. Then she and her colleagues conducted various kinds of experiments on hundreds of kinds of Chinese medicinal herbs, including artemisinin. However, the results were disappointing: even those involving artemisinin, which had been universally well regarded, were less than satisfactory.
But later, when Tu found a relevant passage written by Ge Hong of the Eastern Jin Dynasty (317-420), it occurred to her that high temperatures destroy artemisinin's effectiveness: it needs a low temperature to work properly. The discovery pointed to a brand-new direction for Tu and her research team. Finally, in 1972, an extract(# R40) of it was found to be one hundred percent effective against the disease!
In 2000 the WHO announced artemisinin was a leading anti-malarial drug, and promoted it worldwide. So far, it has been playing a great role in the battle against malaria. Beginning at the age of 39, Tu devoted her fife-te-her reseach. In 2015, at the age of 85 and as the first Chinese scientist, she received a Nobel Prize in Physiology or Medicine. How did Tu manage to accomplish such a great achievement? You probably have the answer to that already.
1.What can be learnt about “chloroquine”from paragraph1?
A.It contributed to Tu’s great discovery.
B.It was discovered by experts in Southeast Asia.
C.It was a breakthrough out of Chinese medicine.
D.It used to be effective against the disease of malaria.
2.What did Tu Youyou do after reading a passage by Ge Hong?
A.She interviewed doctors to collect their experience.
B.She attempted to heat the extract at a low temperature.
C.She made necessary adjustments in each stage of her research.
D.She expanded access to the anti-malarial drug around the world.
3.Which of the following can best summarize the main reason for Tu's success?
A.You reap what you sow.
B.Actions speak louder than words.
C.Don't claim to know what you don’t know.
D.Live and learn through your mistakes or experience.
难度: 中等查看答案及解析
With the average number of children in a British family falling beneath an average of 2.0,the population of the UK has been declining for quite a few years. The size of the British workforce is declining. This trend (趋势) is quite worrying for the British economy.
There is a whole range of reasons accounting for the worrying trend. One of them is that British people are new having their children at a much older age than previously, meaning they have fewer years in which they can have children. Most young People today tend to choose to go university first and build up work experience before getting desired jobs.
Expensive houses also play a part. Many young people are forced to stay with their parents early in their careers. So it's not until people are about 30 years old that they can afford to buy their own home, and then they can start to think about settling down and having children.
So a British person manages to get a job, get a home and get married. Why isn’t he or she then having at least two children on average? The major reason is that it is relatively expensive to bring up a child in the UK. Usually both parents need to work to cover their living expenses, which means they then need to pay someone to look after their child during the day, such as nanny (保姆) or nursery school.
In addition, uncertainty in the global economy often affects British family size. In face of an economic downturn, young British find it more difficult to find jobs or keep their existing ones This discourages them from having larger families. And with this much pressure on families, it’s no wonder that the divorce rate remains so high
To save the British family, the government is taking active measures, for example , by increasing monthly Child Benefit money and offering increasing amount of government subsidy (津贴)for parents to claim. There are also laws allowing parents to take more time off work so that they can look after their children themselves rather than having to pay others to do it.
Let's hope it's not too late to save the British family. Otherwise, the British won't have enough time, energy or money to have children. And where's the fun in that?
1.According to the author, what may account for the decrease of UK's population?
A.People's choice of being single to acquire further education.
B.The trend for people to have children at a younger age.
C.Larger family size brought by weak global economy.
D.The relatively high expenses in raising children.
2.What does the author mainly imply in the last paragraph?
A.It is important to raise people's awareness of saving the British family.
B.It is necessary to reduce subsidies for families and nursery schools.
C.It is urgent to handle the present serious situation.
D.It is difficult for parents to balance life and work.
3.What is the best title for the passage?
A.Disappearing Families. B.Declining Economy
C.Increasing Divorce D.Worrying Workforce
难度: 中等查看答案及解析
Japans biggest airline is betting that the future of travel isn't traveling at all. For the last month, a married couple has been interacting with a robot -called an Avatar -that's controlled by their daughter hundreds of miles away. Made by ANA Holdings Inc. it looks like a cleaner with an iPad attached But the screen displays the daughter's face as they chat, and its wheels let her move slowly about the house as though she's really there.
"Virtual travel"is nothing new, of course. Storytellers, travel writers and artists have stimulating(刺激)the sense of armchair tourists for centuries. It's only in recent decades that frequent, safe travel has become available to the non-wealthy.
Yet even as the world's middle classes climb out of the armchair and into economy-class seats, there are signs of a post-travel society coming into being. Concerns about sustainability(可持续发展)are having an negative influence on carbon-intensive airlines. And the aging of wealthy societies is both slowing down physical travel and creating demand for various ways to experience the world. For the travel industry, virtual (虚拟的)reality offers an attractive response to these trend.
Of course, far- out technologies encourage far-out claims. ANA doesn't plan to start selling Avatars until next year. Profits, too, will probably be difficult to achieve: according to one investigation, the global market for this kind of technology will be worth only about $300 million by 2023. By contrast, ANA's traditional travel business brought in more than $19 billion last year .
But if the business case for virtual vacations is still weak, the market for technologies that bridge physical distances between families and coworkers seems likely to soy expand.ANA's robots may not replace its airplanes any time soon, but they ' ll almost certainly be a part of travel’s high-tech future.
1.“Avatar” is mentioned in paragraph 1 to_________.
A.display how people travel with the robot “Avatar”.
B.introduce a new service offered by Japan's biggest airline.
C.lead in the topic of virtual travel by providing a vivid scene.
D.describe what the robot"Avatar" looks like and how it works.
2.It can be inferred from paragraph 3 that people's choice of virtual travel may be the result of________.
A.the demand for safe travel
B.wealthy people's growing old
C.worries about low-carbon airlines
D.the support of advanced technologies
3.By saying “far-out technologies encourage far-out claims”, the writer means_______.
A.traditional travel business is not profitable
B.global market for virtual travels is hard to predict
C.the time is ripe for selling Avatars in term of technology
D.virtual travels will take the place of traditional ones very soon
4.What's the writer's attitude to virtual technology?
A.Uncertain. B.Cautious.
C.Enthusiastic. D.Optimistic.
难度: 中等查看答案及解析
Thanks to TV shows like Lie to Me and so-called body language experts commenting on the candidates during the American election season, a number of misunderstandings about body language have become part of modem culture. It's time to clear the decks. So here goes. Some surprising truths about body language.
Much of what the experts tell you about body language is wrong.1.Actually, gestures an mean many things. If I cross my arms, I may be signaling my defensiveness, but I may also feel cold, tired or just getting comfortable, What's more. I could be signaling all those things at once.2.. First, the pressure on experts. They have to sound definitive and give instant analyses for TV in an impatient world more interested in sound bites than truth. Second, the history of the study of body language, So it's natural for someone in this field to look at all the rest of gesturing with a bias (偏见) toward specific meanings.
3. By the time most of us are adults, we've learned to mask our true feelings because we have to get along at work, at home, and in social settings. So we pretend to be interested, we pretend to smile, we assume a calm expression when we’re actually delighted.
But the face does sometimes give away our strongest feelings. You can learn to read what are called micro-expressions- sudden appearances of true emotion through the mask of the face-with some training. 4..
To read body language accurately, don t think about it. We humans have mirror neurons (神经元) in our brains that fire when our unconscious (无意识的) minds register an emotion in someone else, then we can share it and understand it.5.When we see fear, we react instantly, and unconsciously, in order to be ready to take quick action if necessary. That unconscious expertise is your best support in reading other people's body language, because you already know what's going on. So just turn to your unconscious mind for reliable information about other people's emotional intention.
Let’s start paying attention to your own expertise; that's where the real body language insights will come from.
A. The misunderstanding comes from two sources.
B. The face is a poor place to start reading body language.
C. This special skill is an important part of our ability to survive as a species.
D. And they typically show up when we're trying to hide a very strong feeling.
E. The biggest misunderstanding is that specific gestures have specific meanings.
F. You're much better at reading the body language of people you know than any expert.
G. Your body constantly scans your surroundings and other people with your unconscious mind.
难度: 困难查看答案及解析
China's Great Wall, Australia's remote Outback, Italy's ancient ruins, Jane Sun, CEO of CTip, Asia's largest online travel agency, connects people with the best destinations the world has to offer. She believes cultural experiences can_________ divides and conflicts, strengthen industries and create peace.
Actually she herself is a living breathing advertisement for how travel can_________a life. But her journey was much longer and more_________ than her recent completion of the Shanghai marathon.
While_________Peking University, Sun was invited to a program in the University of Florida, where she_________managed to further her study, majoring in accounting. Compared to her fellow students, Sun's life_________was rapid. She bicycled 6 miles to campus each morning, taking the earliest classes_________ so she could spend the rest of the day, and Saturdays, working to pay her education fees.
_________Sun recalls her UF days fondly. “I learned a lot from my experience in the USA,” says Sun.
Many discussions I had at UF still _________ my style of leadership today.____________, I have developed an appreciation for hearing other persons different ____________ over a certain issue.”
“I try to put myself in other people's shoes”, Sun says, “In a global market, you have to have a very good understanding of different peoples and____________ different cultures.”
Feeling it her duty-to help the next generation, Sun ____________ a scholarship to other students in need. Her tips for them include, “be open-minded,” give 100 percent effort to whatever you want to____________That’s the exact attitude she holds to life.
Now as a mother of two daughters, she shoulders the____________as CEO of what is now a $25 billion company.
“Some people ask me why I work so hard, but I feel mothers are best role____________for children,” Sun says. “I show them that to work is actually to____________ yourselves, but if you double your efforts at work and being a mother. it is doubly____________.”
As for her future____________Sun is preparing for the day when virtual reality, advanced vehicles and even space travel will change the travel industry.
One thing that won't change: the____________of travel to build bridge.
1.A.bridge B.separate C.suspect D.foresee
2.A.observe B.change C.entertain D.disturb
3.A.enjoyable B.unique C.difficult D.hopeless
4.A.representing B.guiding C.inspecting D.attending
5.A.finally B.constantly C.especially D.roughly
6.A.career B.settlement C.pace D.rate
7.A.worthwhile B.accessible C.valuable D.available
8.A.Therefore B.However C.Meanwhile D.Moreover
9.A.influence B.direct C.satisfy D.inspire
10.A.At ease B.By chance C.In particular D.In general
11.A.Impressions B.explanation C.conclusions D.arguments
12.A.preserve B.respect C.develop D.create
13.A.set up B.carried on C.referred to D.came across
14.A.defend B.accomplish C.expand D.approach
15.A.credit B.blame C.responsibility D.failure
16.A.models B.performers C.supporters D.pioneers
17.A.expose B.delight C.challenge D.clarify
18.A.convincing B.astonishing C.thrilling D.rewarding
19.A.efforts B.opportunities C.possibilities D.motivations
20.A.freedom B.power C.focus D.determination
难度: 中等查看答案及解析
阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
July 6th, 2019 witnessed Chinese people cheering in excitement as news came that the Archaeological Ruins of Liangzhu City in Hangzhou, Zhejiang Province, was listed as a World Heritage Site.
The Liangzhu ruins1.opened to the public on Sunday, is located between the villages of Liangzhu and Pingyao in the northwestern par of Hangzhou. The park,2.(spread) across an area of 366 square kilometers, provides shuttle bus services, so visitors can travel to many different sites.
First,3.(found) around 3000 B.C. the city of Liangzhu Ancient was surrounded by walls 6,000 meters in 4.(long). The walls formed a rectangle with rounded corners, enclosed by the natural hills of Zhishan and Fengshan.
It was raining on the third day of the parks opening, 5. the weather couldn't keep visitors away. 6.a ticketing system available on WeChat, visitors can book tickets seven days in advance. However, tickets 7. (limit) 3,000 a day. Michelle Shearer a visitor from Australia, told the Global Times that she booked a ticket online8. (immediate) she heard the news. “The city offers unique evidence of China's long history and it is really a good place to learn more about Chinese culture,” she said.
“This is the first time that a Chinese prehistoric archaeological site(遗迹)9.(select) as a World Heritage Site.” said Chen Xingcan, deputy president of the Institute of Archaeology CASS. “We cannot relax after getting the title of World Heritage Site. Protection is10.long lasting means to allow us to explore their value,” Chen said.
难度: 中等查看答案及解析
假定你是李华，你校绿社 (the Green Club)将向附近农场社区发出“Say No to Chemical Fertilizers”的倡议，请你以社长的名义用英语写一封倡议书，主要内容包括：
1.简述倡议内容；
2.阐明倡议理由；
3.号召大家响应。
注意：1.词数80左右
2.可适当增加细节，以使行文连贯。
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
难度: 中等查看答案及解析
阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。
Mama and I spend mornings cleaning up the dirt that blows into our house. Mama says all the dust is due to the drought, not only here in the Oklahoma panhandle(狭长地带) but all over the Great Plains.
The dirt sifts into everything. It covers our clothes. We have to wash the dishes before each meal. It also slips into the automobiles horn (喇叭). Although Papa has fixed it, he fears the dust from the road will ruin the motor, So, we have to walk to school.
On the way to school, my sister, Faye, and I wear kerchiefs over our mouths so we don' t breathe in the dirt On days when the air is so bad that they close the school, we stay home and help Mama put sheets over the windows. But the dirt always finds a way in .
Last Sunday, there was no dirt in the air, only bright spring sunshine and a clear blue sky. After church, Papa headed out to the field to check on the cattle while Mama started dinner. Faye and I played in the yard. The temperature suddenly dropped-it felt good. The heat had been building since dawn.
Then Mama shouted from the house, “Iris, you and Faye get inside. Be quick!”
I looked to the west and saw a huge black cloud of dust, like thick smoke pouring out from a chimney. All the birds flew away. “Faye, go with Mama!” I shouted, “I’ll warn Papa.”
Faye raced, toward the house. The storm hit so fast, I barely saw her climb the porch steps. Fine sand heaved against my face and in an instant the day turned into night. I stumbled over our bicycles left carelessly in the yard. I screamed for Papa, hoping my voice would lead him back.
The dirt and sand stung my skin like a thousand bees. I needed to get to shelter. Covering my face with one hand, I felt my way toward the automobile and I opened the door. Dirt flew in with me as I pulled the door closed. Papa was still out there! I needed to help him find the automobile. Worried as I was, I managed to calm myself down.
注意：1.所续写短文的词数应为150左右；
2.至少使用5个短文中标有下划线的关键词语；
3.续写部分分为两段，每段的开头语已为你写好；
4.续写完成后，请用下划线标出你所使用的关键词语。
Paragraph 1:
I was figuring out what to do when I caught sight of the switch for the front lights and the horn.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Paragraph 2:
Suddenly Papa’s face appeared at the window.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
难度: 中等查看答案及解析