假如你是李华，给留在深圳过寒假的留学生朋友Jack写一封电子邮件，告知其目前新冠病毒肺炎的形势，请他注意防护。
要点如下：1. 告知疫情现状: 疾病有可能人传人，增长地很快；病毒从武汉传到了中国的所有省份，药还没有找到；
2.提醒他假如没必要的话，尽可能地减少外出；
3.外出要戴N95口罩，避免去拥挤的地方，聚会或参加大型活动；
4.加强防疫和自我防护，譬如勤洗手，避免跟感冒或有类似流感的症状的任何人接触等。
注意：1. 字数100字左右文章的开头已给出，不计入总字数；
2. 文章必须包含所有提示内容，可以适当发挥；
参考词汇： elbow 肘部 tissues 纸巾 an N95 mask 一个N95口罩 sneeze 打喷嚏 prevention and self-protection 防疫和自我防疫 flu-like symptoms 类似流感的症状
Dear Jack,
Knowing that you are in Shenzhen for the holiday these days, I’m writing to tell you the serious situation about the 2019 Novel Coronavirus. ________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
I’m writing sincerely to remind you to pay more attention. Wish you a pleasant and safe winter holiday in Shenzhen.
Yours,
Li Hua
阅读下面的短文，根据文章大意用所给单词的适当形式填空（未提供单词的，限填一词）,使文章意思完整、正确，并将答案写在答卷。
We are deeply saddened by the passing of Dr. Li Wenliang. Dr. Li Wenliang, one of the eight “whistleblowers(吹哨人)” who tried 1.(warn) fellow doctors of 2.novel coronavirus when it first appeared in Wuhan, died early on Friday. Wuhan Central Hospital 3. (prove) in a statement which was shown on 4.(it) official Weibo account(账户). “Our hospital’s ophthalmologist Li Wenliang was 5.(luck) infected with coronavirus during his work in the fight 6.the coronavirus epidemic(流行病),” the statement read,7.(add) “He died at 2:58 a.m. on February 7 after attempts to resuscitate(试图复苏)were unsuccessful.”
“After emergency treatment, Li Wenliang passed away,” the Central Hospital of Wuhan announced on Weibo, China’s version of Twitter. “We deeply regret and mourn (哀悼) Li’s 8.(die).”
Dr. Li is a hero,9.will live in our hearts forever. May God bless all the courageous doctors and 10.(nurse) fighting on the front line.
Since May 12, a computer virus named WannaCry has infected (感染) more than 300,000computers in over 150 countries, according to Reuters.
Wannacry is spread by using a weakness in Microsoft's Windows operating system. Once the virus gets into the computer, it locks all the papers and asks the user for money to unlock them. At first, it asks for $300, but if the user doesn't send the money in 72 hours, the price doubled. Papers are locked forever if the user doesn't pay in seven days.
The virus has brought bad results. For example, in the UK, the virus left the country’sNational Health Service in a mess. Some hospitals had to cancel patient appointments(预约), reported The Telegraph. In China, the virus has hit thousands of computers, according to Qihoo360. One of the most hard-hit groups in China were university users. Many students' graduation papers were locked. They felt nervous and frightened. Also many gas stations were seriously hit, and the payment system didn’t work.
WanaCry is the latest example of the cyber security(网络安全) problem. Matthew Hickey, who set up the security company Hacker House, said, "The attack is not surprising. It shows that many organizations do not use updates(更新) fast enough. According to a survey, nearly half of the people said, “We are not satisfied with the way software updates work.”
As China Daily wrote, “We can’t completely protect our computers against these kinds of viruses, as this cat and mouse game will continue forever. The best choice for most users is to take care online and always install(安装)software updates.”
1.What is WannaCry?
A.A video game. B.A computer software. C.A computer virus. D.A TV programme.
2.If your papers are locked by Wannacry, how much do you need to pay if you don’t send the money in 72 hours?
A.$150. B.$300. C.$600. D.$900.
3.According to the passage, the writer shows the bad results by ________.
A.giving reasons B.giving examples C.comparing computers D.comparing numbers
4.From the last two paragraphs, we can know that________.
A.Matthew Hickey thinks the attack on computers is very surprising
B.all the people are pleased with the way software updates work
C.the computers can be completely protected against these viruses
D.we should take care online and update software fast enough
Why are some people better able to beat the flu than others? Part of the answer, according to a new study, is related to the first flu strain we met in childhood.
Scientists from UCLA and the University of Arizona have found that people’s ability to beat the flu virus is decided not only by the sub types of flu they have had throughout their lives, but also by the sequence (顺序) in which they have been infected by those viruses. Their study was published in PLoS Pathogens. The research offers an explanation for why some people become much worse than others when infected with the same strain of the flu virus.
In addition, UCLA scientists, including Professor James Lloyd-Smith, who was also a senior author of the PLoS Pathogens research, recently completed a study that analyzed (分析)travel-related screening(筛查) for the 2019-nCoV. The researchers reported that screening travelers is not very effective for the 2019 coronavirus ― that it will catch less than half of infected travelers, on average ― and that most infected travelers cannot be found out, meaning that they have no symptoms(症状)yet, and are unaware that they have been at high risk. So stopping the spread of the virus is not simply a matter of improving screening methods at airports and other travel centers.
“This puts the responsibility on government officials and public health officials to follow up with travelers after they arrive, to separate them and trace(追踪) their contacts if they get sick later,” said Lloyd-Smith, a UCLA professor of ecology and evolutionary biology(生态学和进化生物学). “Many governments have started to impose quarantines (隔离), or even travel bans, as they realize that screening is not enough to stop the spread of the coronavirus.”
One major concern, Lloyd-Smith said is that other countries, especially developing nations, lack the infrastructure(基础设施)and resources for those measures, and are therefore vulnerable to importing(输入) the disease. “Much of the public health world is very concerned about the virus being introduced into Africa or India, where large populations exist that are not able to receive advanced medical care,” he said.
1.Why is the scientists’ research very important?
A.It explains the cause of the flu virus. B.It reduces the risk of people being infected.
C.It analyzes(分析) people’s ability to fight off the virus. D.It stops the spread of the flu virus all around the world.
2.What do we know about the novel coronavirus from Paragraph 3?
A.Travelers are at high risk of being exposed to it.
B.It is more difficult to stop its spread than expected.
C.Most travelers infected with it are detected by screening.
D.It spreads especially quickly at airports and railway stations.
3.Why does the writer mention Lloyd-Smith’s words in Paragraph 4?
A.To persuade people not to travel. B.To provide a method to kill the virus.
C.To show the harmful effects of the virus. D.To stress(强调) the responsibilities of officials.
4.Which of the following best explains the underlined word “vulnerable” in the last paragraph?
A.Easy. B.Impossible. C.Responsible. D.Indifferent.
How could we tell time if there were no watches or clocks anywhere in the world?
The sun is probably the world’s first “clock”, except in the far north, where the Eskimos(爱斯基摩人)live. There, it’s dark most of the winter, and bright most of the summer. But in most of the world, people have used the sun as a clock. Even today, if you don't have a clock, you can still know that when the sun shines, it’s day and when it’s dark, it’s night. The sun can also tell you if it's morning, noon, or afternoon.
Some people live near the sea. They have their special way to tell time. In the daytime, for about six hours, water rises higher and higher on the beach. And then it goes down and down for about six hours. The same thing happens again at night. There are two high tides and two low tides every 24 hours. Seamen on the ship learn how to tell time by looking at the moon and the stars. The whole sky is their clock.
In some places in the world, the wind comes up at about the same time every day or changes direction or stops blowing. In these places the wind can be the clock.
A sand clock is an even better clock. If you had fine dry sand in a glass, you would have what is called an hourglass. The sand in the hourglass goes from the top part to the bottom in exactly one hour. When the hourglass is turned over, the sand will take another hour to go back again.
1.From the passage we can know there are________ ways to tell time besides the clock and watch.
A.3 B.4 C.5 D.6
2.The Eskimos in the far north can’t use the sun for a clock because________.
A.they know very little about the sun
B.the sun there never goes down in winter
C.it's too cold for them to go out to watch the sun
D.it has long dark winters and long bright summers
3.In which column of a newspaper can you probably read this passage?
A.Entertainment. B.Science. C.Advertisement. D.Sports.
4.What is the best title for the passage?
A.Different Ways to Tell Time B.How the Clock Was Invented
C.The Development of the Clock D.A Useful Machine to Tell Time
One of the main purposes of traveling is to relax and take a break from your normal daily life. Whatever the truth is, we’re not always free to do what we like when traveling to a foreign country, and a US tourist learned that the hard way.
On Aug 12, the unnamed 4l-year-old man was beaten by a passer-by after he was seen giving Nazi salutes(纳粹礼) again and again on a street in Dresden, Germany.
Ever since the end of World War II, Germany has had strict laws to forbid the Nazi salute, as well as other symbols of Nazism.
In fact, most countries have their own taboos. If you plan to travel overseas, it's best to get familiar with these taboos before you start touring local sites. The following are some examples.
Singapore
You can get fined for a lot of things in Singapore, including feeding birds, spitting, urinating in public, smoking in public, not flushing a public toilet after you use it, and eating or drinking on buses or trains.
Japan
You're not supposed to wear your shoes in someone’s house, but you're not supposed to take your shoes off outside the house either. Instead, there's a small area inside the door called a “genkan” which is where your shoes should go. If you're still not sure where that is, pay attention to what other people do and do the same.
France
French people don't like it when you talk about money. It's OK if you say that you want to quit a job because you are paid little money, but you should never say the exact amount. Money is a “dirty” topic in France.
1.When traveling abroad, we can’t ________.
A.relax and take a break from normal daily life
B.follow what other people do and do the same
C.be always free to do whatever we like
D.tour the local sites and give salutes
2.The underlined word “taboos” means something you must________doing.
A.enjoy B.avoid C.finish D.keep
3.________is considered to be proper.
A.Eating or drinking on buses or trains in Singapore
B.Wearing your shoes in your Japanese friend’s house
C.Talking about how much money you can make in France
D.Not smoking, spitting or feeding birds in public in Singapore
4.You can read this passage in (a)n________.
A.advertisement B.poster C.novel D.magazine
