Disease spread in many ways. An infected person can cough or sneeze on someone nearby, or they can spread germs through a handshake. But sometimes we pick up germs indirectly. A sick person might leave behind bacteria or viruses when they touch a door handle, for example. But what if those surfaces could clean themselves?
Two teenagers from Hong Kong asked themselves the same question. Now they’ve developed a door handle that can kill germs on contact.
The idea is simple. Every time the door is opened, the movement creates power that starts a germ-killing reaction on the handle. In lab tests, their system killed about 99.8 percent of the germs that they spread onto lab dishes covered with their material.
Research by others has shown that door handles in public areas are often home to lots of bacteria and viruses, notes 17-year-old Sum Ming(“Simon”）Wong. He and schoolmate Kin Pong ( Michael ) Li, 18, wanted to design a covering for door handles that would kill germs.
After doing some research, they learned that a mineral called titanium dioxide(二氧化钛）is known to kill bacteria. It’s already used in many products, from paints to desserts. To make their covering, the teenagers made the mineral into a very fine powder.
Titanium dioxide kills bacteria best when lit by ultraviolet(紫外线的）light, says Simon. UV light is found in sunlight. But UV light does not naturally shine on indoor handles or any used at night, so the teenagers light their door handle from within.
To make sure the light reaches the coated surface, the teenagers made their door handle out of clear glass, Each end fits into a bracket (托架).Inside one of the brackets is a strong light-emitting diode(LED). From it comes UV light.
And here’s the interesting part: The power that makes the UV light shine comes from opening and closing the door. The power from the door is then carried by wire to the LED inside the door handle.
The door handle system, Michael and Simon say, might cost no more than about $13 (about 81 yuan) to build.
1.The ways diseases spread are mentioned at the beginning of the text to .
A.demonstrate how most diseases are spread indirectly
B.remind readers of the importance of cleaning their hands
C.explain how to kill bacteria or viruses effectively
D.help to describe a new invention that prevents diseases from spreading
2.Michael and Simon’s door handle .
A.is too expensive for ordinary families
B.is powered by the movement of its users
C.works better at night than in the daytime
D.is made of a metal that can take in UV light
3.The LED is placed inside the brackets to .
A.supply enough power to the handle system
B.produce titanium dioxide to kill bacteria
C.provide UV light to help titanium dioxide work better
D.direct the UV light in sunlight to the coated surface
4.What is the author's attitude toward Michael and Simon s door handle system?
A.Cautious B.Critical
C.Enthusiastic D.Disappointed
There are many Spanish gossip magazines being published around the world. If your Spanish is good enough, these magazines will offer a lively look into the private moments of the beautiful, rich and famous, and provide entertainment and at the same time, help you practice your Spanish.
Diez Minutos: The magazine is a classic Spanish gossip feast with daily news based on many stories of love, separation, divorce and death. The two main parts are headlined “love” and “partners”. They also have an online version of the magazine for serious gossip addicts.
Hola: It is Spain’s top weekly magazine and the leader of the gossip world. It contains many pictures and a round-up of well-known and less well-known nobles and people in show business. Apart from edited highlights from the present and past issues, there is a report of the week and photo of the week. There is also a French version called OhLa!
Revista CUORE: As the third best-selling gossip magazine in Spain, it is mainly aimed at younger teenage readers who look not only for current celebrity (名流）gossip，but also for fashion and TV news. It uses a lot of oral terms.
Revista SEMANA: It is a Spanish magazine covering the latest news on the famous in Spain and Hollywood. It also offers its readers information on fashion, beauty, cooking and travel.
Revista LECTURAS: Practical, friendly and informal, this magazine is one of the most widely-read gossip magazines on the Spanish market today.
Marujeo.com: It is a blog serving up a daily diet of national gossip news on Spanish and international celebrities and the celebrity world from a particular point of view.
Revista CARAS: It is a magazine published in various countries of Latin America. It is also exported to certain parts of the United States, bringing together strange and wonderful news from around the world and the famous Latin community.
1.What does the first paragraph tell us about Spanish gossip magazines?
1.Types 2. Publishers 3. Functions 4. Origins
A.1、2 B.3、4
C.1、3 D.2、4
2.Which of the following also has a French version?
A.Hola. B.Revista SEMANA.
C.Revista LECTURAS. D.Marujeo.com.
3.How many of the magazines mentioned in the text can be read on the Internet?
A.One. B.Two.
C.Three. D.pour
假如你是李华，你的外国朋友Peter写信询问有关武汉新冠状病毒肺炎的情况。请你给Peter写一封回信。内容包括：
1.肺炎简况；2.应对措施；3.战胜疫情的信心。
开头和结尾已给出。词数100左右.
相关词汇：novel coronavirus pneumonia 新型冠状病毒肺炎（NCP） epidemic 疫情 Dear Peter,
Knowing that you are concerned about the situation about NCP in Wuhan. I'd like to tell you something about it.
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours
Lihua
假设英语课上老师要求同桌之间交换修改作文。请你修改你同桌写的一下作文。文中共有 10 处语言错误, 每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处增加一个漏字符号（^）,并在其下面写出该单词。
删除：把多余的词用（\）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。
Congratulations on the five anniversary of Global Mirror! I am the regular reader of your newspaper. The reason of which I like it is that it covers both national and international news. By simply turning page, I can learn all important things that had happened during the week. Presented some viewpoints in an objective and humorous way, it deserves the popularity. Therefore, equally attractive are the stories of world-famous people that help me understand which makes them succeed. As a young student, I suggest that Global Mirror would carry articles guiding us in our English learning, and I hope that it will become even popular.
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Tim Hollingsworth, 1. well-known American chef, learned to cook at his mother’s side when he was growing up. He would measure ingredients to help her make dinner. He would talk with his mother and taste the food as they 2. (cook).
He still cooks with his mother, but it is 3.(differ) now. She struggles with memory 4. (lose). She sits with him as he prepares “comfort foods” from her favorite recipes, ones that fill your stomach and warm your heart with happy memories, while 5. (fill) a home with a pleasant smell.
His mother does not cook anymore. But being present at the cooking 6. (help) close the distance that dementia(痴呆) can create. Dementia affects older people's memories. Over time, patients lose their memories, piece by piece. 7. (be) with family and doing things together can help. It helps them feel like part of a family or community. It’s not what they eat 8.the comforting experience of sitting around the table that matters.
This year, the Alzheimer's Association has been spreading the word about the 9. (connect) power of mealtime through their Around the Table program. "We make memories over good food 10. has been made with “thought and love.”
The other day I was shopping at a local store. And then I came upon a lady squatting (蹲) on the floor looking for a certain product on the ____shelf. She sprang up when she saw me as if to get out of my _____. Apologetically she explained that she was a _________at a nearby store and was on her lunch break, _____to get a few needed items before her time was up.
I told her with a smile, “I am ______. Go ahead and do what you need to do.” While she ______for a particular brand she said that sometimes customers were ______to her at the store and she really ______my kindness. I told her that I had noticed cashiers being treated rudely by some people and that those people needed to be more ________.
It is _______for the cashier when people are glaring at them when the cashier is doing the best they know how. I explained to her that I was a retired nurse and ___what she was saying first hand. Sometimes patients, families, or doctors could be very rude or even _____. But I tried to understand why they were feeling that way and let it _______.
She thanked me for being so nice and _______. I told her, “The world would be a ________place if we all acted kindly toward each other.” She ______and with a big smile she said thank you and walked away.
It felt so good that I have helped _____someone for even a few seconds. In a brief exchange I _____her there are good and kind people in the world and may have promoted her _____in humanity. Maybe she would think about that later in the day when someone was treating her _____.
1.A.top B.long C.bottom D.wooden
2.A.way B.sight C.room D.mind
3.A.manager B.cashier C.waitress D.shopkeeper
4.A.trying B.pretending C.learning D.remembering
5.A.on the go B.at a loss C.in no hurry D.out of patience
6.A.paid B.waited C.applied D.searched
7.A.close B.rude C.nice D.grateful
8.A.doubted B.mistook C.deserved D.appreciated
9.A.considerate B.patient C.generous D.concerned
10.A.pleasant B.stressful C.appropriate D.impossible
11.A.recalled B.minded C.understood D.questioned
12.A.mean B.helpful C.stubborn D.thoughtful
13.A.work B.go C.stay D.turn
14.A.careful B.lucky C.grateful D.friendly
15.A.larger B.quiet C.better D.practical
16.A.refused B.relaxed C.jumped D.nodded
17.A.comfort B.direct C.rescue D.serve
18.A.proved B.showed C.told D.persuaded
19.A.doubt B.understanding C.satisfaction D.faith
20.A.impatiently B.casually C.unkindly D.seriously
