A study shows that one million lives might be saved each year if people wash their hands with soap(肥皂) often. It also says that hand-washing with soap could be among the best ways to reduce diseases. Doctors say many diseases can be prevented from spreading by hand-washing. These include the common cold, influenza(流行感冒), hepatitis(肝炎), infectious diarrhea(腹泻) and so on.

    Doctors say you are easy to catch a cold by touching your nose or eyes after someone nearby has sneezed or coughed. Another reason to catch a disease is to eat food prepared by someone whose hands were not clean.

    They also say that hand-washing is especially important before and after preparing food, before eating and after using the toilet, after touching money and sneezing or coughing. The most helpful way is to wash them together while using soap and warm water. You do not have to use special soap. Be sure to wash all areas of the hands for about ten to fifteen seconds.

Title : Basic Knowledge of hand-washing

    Humans' Greatest Achievements

    The earth is 4.5 billion years old, but the human race has lived on it for just 200, 000 years. In that short time, we have achieved some amazing things.

    {#blank#}1{#/blank#} The list is almost endless. The invention of the airplane has changed our lives. The discovery of antibiotics(抗生素) has saved the lives of millions of people. Can you imagine living without electricity？What about the printing press(印刷术)？Without the printing press, you wouldn't be reading this. In the last 50 years, there have been great achievements in communication, such as radio, TV, computer, the Internet, and smartphone (智能手机).{#blank#}2{#/blank#}

    What about the arts？The arts have brought pleasure to many people, but are the Beatles and Bach more important than antibiotics？{#blank#}3{#/blank#}

    Finally, we must not forget humans' early achievements.{#blank#}4{#/blank#} We can't imagine modern life without cooked food and cars.

    What are humans' greatest achievements？To answer the question, we need to decide what we mean by "great"{#blank#}5{#/blank#} Or is it just something that makes us say “Wow”, like the Great Wall？What do you think?

根据短文内容, 从方框中选出五个句子填入文中空缺处, 使短文内容完整正确.

    Today is Emily's 15th birthday. The following are some presents she receives.

    (Zhejiang, Dec. 2) The Liight of Internet Expo opens at Wuzhen, Zhejiang Province, as part of the 2017 World Internet Conference, More than 400 Internet companies, big and small, attended the great event. They include not only industry giants（大公司）such as BMW, Kaspersky, Alibaba and Tencent but also startups that are leaders in some areas of information technology.

    Aliaba s self-service supermarket is a real hit, which shows the future of offline shopping. It allows shoppers to take what they like after scanning a OR code（扫描二维码）． Without waiting in line, it feels like you are picking things from your own table at home.

    In a corner at the expo, the E-take driverless car also gets visitors attention. It is orange and similar in style to a European sports car. It was developed by Zhejiang Hozon New Energy Automobile. A spokesperson for the company said the work of bringing the car to market is progressing well.

    Ofo, a leading bike-sharing company based in Beijing, is present and also has been working on new technology to serve customers. Ofo, working with Huawei Technologies Co, has introduced a smart bicycle lock. It can be unlocked with a smartphonusing near-field communication technology, which is "even easier than scanning a QR code". Li Bofei, a business manager for the company said, "We are trying to make things even easier."

    At the expo, We Doctor Group shows a smartphone. It has a button(按钮)on the back to make things simpler and easier for elderly smartphone users. It allows them to connect to the company's Internet hospital platform ( 平台), which was developed in late 2015.

    Technology is changing our lives, isn't it?

    Students generally find it difficult to prepare for a speaking test because they have nobody to practise    (A)    or correct their mistakes. But that doesn't mean you can't test yourself.

    Whether you're taking an end-of-course test or an official (官方 ) exam like PET or IELTS, there's one great tool you can use: your mobile phone. Nearly every smartphone these days has an inbuilt recording feature (内置录音功能) which you can use to test your speaking skills. You can record yourself speaking, play the recording back, and correct your own mistakes.

    I practised this way in Italian. I chose some speaking questions from PET and did the exercise three times. The first time, I made a few grammar mistakes and didn't speak for long enough. The second time was a bit better, and the third time was nearly perfect.

    All in all, I made a real improvement with my grammar, pronunciation and how long I spoke. Also, recording myself put me under the pressure (压力) I would experience during an important speaking test.

    Many students found this method    (B)   . Nelia, from Brazil, said that she could hear her mistakes when she listened to her voice. She was mainly using the wrong verb tense (时态) and using prepositions(介词) incorrectly. When she tried the exercise again, she got its right! Donghyeon, from South Korea, said that the exercise helped him to improve his English skills in general.

    Need a reason to be happy? Then you will be happy to know that March 20th is the International Day of happiness.

    The united Nations set up the International Day of happiness in 2012 to remind us that happiness is a basic human goal and right.

    It was celebrated for the first time in 2013. On that day, we celebrated hundreds of "Happy Heroes" – those who did so much to bring happiness to others. They helped the homeless to live a comfortable life and the poor kids to go to school.

    The 2014 Day of Happiness actions asked people to share pictures of making them happy. People all over the world showed their favourite pictures on the Internet. "It's exciting to see so many people sharing photos of what makes them happy." Joe, a senior high school students from Canada said. The 2015 Day of happiness actions gave attention on relationships. Modern society is leaving more and more people felling lonely. On that day, thousands of people all around the world reached out to make new connections with others. They visited their neighbours, gave calls to the doctors they didn't know very well, drove the strangers to station for free…

    The theme of the 2019 Day of Happiness is "Happier Together". It encourages people worldwide to focus on what we have in common, rather than what divides us.