Throughout modern history, perhaps there has never been a scientist as iconic (偶像的) as Stephen Hawking.

    Whether he{#blank#}1{#/blank#}(educate) the world with his knowledge of the universe, or making fun of himself in TV shows, it is hard to imagine what the world will be like now Hawking is no longer in.

    On March 14, 2018, the British physicist passed away in Cambridge. Since then, many people have expressed their condolences (哀悼) on social media, including British computer scientist Tim Berners-Lee{#blank#}2{#/blank#}invented the World Wide Web. “We have lost a great mind and a wonderful spirit,” Berners-Lee wrote.

    Hawking was an icon for many reasons, but he will be best remembered {#blank#}3{#/blank#} his work in the field of science.

    Building on German scientist Albert Einstein's work, Hawking explained his belief that space{#blank#}4{#/blank#} (start) with the Big Bang, and will end with black holes.

“This complete set of laws can give us the {#blank#}5{#/blank#} (answer) to questions like 'How did the universe begin?'” Hawking wrote in his 2010 work The Grand Design. “Where is it going and will it have an end? If so, how will it end?”

    Besides his work in science, he also managed to overcome many difficulties in his personal life. While{#blank#}6{#/blank#} (study) at Cambridge University, he was diagnosed with motor neuron (运动神经元) disease at the age of 21. His {#blank#}7{#/blank#} (ill) left him paralyzed and he was told he only had a short time to live. However, he went on to become one of the{#blank#}8{#/blank#} (great) minds the world has ever known.

    “I felt it was unfair. Why should this happen to me?” he once recalled. “At the time, I thought my life was over and that I would never realize the potential I felt I had. But now, 50 years later, I can be satisfied with my life.”

Hawking left behind a great legacy (遗产). His signature book A Brief History of Time: From the Big Bang to Black Holes{#blank#}9{#/blank#}(publish) in 1988, became one of the world's best-selling science publications. And in 2014, UK actor Eddie Redmayne played Hawking in the movie The Theory of Everything, which tells the tale of the physicist's life.

    He may no longer be with us{#blank#}10{#/blank#} Hawking will continue to inspire the world for generations to come. As he once said himself, “Look up at the stars and not down at your feet!”

    In your daily life, there are many examples where your parents control hundreds {#blank#}1{#/blank#} things for you when you are a kid, such as the clothes you wear, the food you eat, where you go and how you get there. It is a good thing. Kids need this kind of{#blank#}2{#/blank#} (protect) and help because they are not old enough to take care of {#blank#}3{#/blank#} and make decisions{#blank#}4{#/blank#} (correct). But with you growing{#blank#}5{#/blank#}(old), the part of being a teen is developing your own identity—one that {#blank#}6{#/blank#}(separate) from your parents'. Different attitudes towards events like partying may lead to arguments, because your parents will always want to protect you and keep you safe, no matter how old you are. As {#blank#}7{#/blank#} result, your parents feel it hard to get used to the new situation with{#blank#}8{#/blank#} (increase) anxiety. What kids should keep in mind is {#blank#}9{#/blank#} in most cases, your parents can relate to what you're going through because they {#blank#}10{#/blank#} (be) teens once.

    Staying healthy while {#blank#}1{#/blank#}(travel) can help to ensure your trip is a happy and {#blank#}2{#/blank#}(enjoy) one. When you are going abroad, here are tips you need {#blank#}3{#/blank#}(make) your trip much {#blank#}4{#/blank#}(easy).

    Make sure you have got a {#blank#}5{#/blank#}(sign) passport and a visa. Also, before you go, fill in emergency information page of your passport. Make two copies of your passport identification page. This will help a lot if your passport {#blank#}6{#/blank#}(steal). Leave one copy at home. Carry the other {#blank#}7{#/blank#} you in a separate place from your passport. Read the Public Announcements or Travel Warnings for the countries you plan to visit. Get yourself familiar with laws and customs of the countries to {#blank#}8{#/blank#} you are going. Don't accept packages from strangers. Don't carry too much money {#blank#}9{#/blank#}unnecessary credit cards. If we make enough{#blank#}10{#/blank#}(prepare), we will succeed. Have a good time.

One day Mary was busy working in her office in London {#blank#}1{#/blank#} she received an E-mail from her friend Joan .In Joan's e-mail, she persuaded Mary {#blank#}2{#/blank#}(look) for a flat in London for her. As she had {#blank#}3{#/blank#} (little) money at her command than before, the flat had to be cheap, but it had to be modern, with elevators, gas lines. It had to be in the {#blank#}4{#/blank#} (east) part of London, with petrol and subway stations nearby. Though Mary found {#blank#}5{#/blank#}difficult to find such a flat, she still went from one block to another, looking for a flat {#blank#}6{#/blank#}would meet Joan's requirements. Having tried too many times, Mary met her boss and politely asked him {#blank#}7{#/blank#}advice. It was the first time that she {#blank#}8{#/blank#} (talk) with his boss about her personal problems. It happened that the boss just had such a flat for rent, so they quickly reached {#blank#}9{#/blank#}agreement. But to her surprise, when she e-mailed Joan, telling her the good news, Joan said that she had changed {#blank#}10{#/blank#} mind— she was not returning to London.

    One day, I was walking in the street when I noticed a woman {#blank#}1{#/blank#}(come) up to me with a nervous smile and said,“Sir, can you help a person out? I haven't eaten for almost two days.” I handed {#blank#}2{#/blank#}(she) a few quarters and watched her walk away.

    That area was so poor and {#blank#}3{#/blank#}(rule) by drugs and crimes. I walked to the corner and stopped by the door of the ATM machine. Then I {#blank#}4{#/blank#}(walk) inside and made sure that no one came in behind me.

    I put my card into the machine and deposited my money with a sigh of relief.60.{#blank#}5{#/blank#} I turned to leave, I saw a wallet sitting on another machine. I had a look at it. The name on the license was one I could not pronounce, but whoever he was, he was going to get into a panic over a wallet {#blank#}6{#/blank#} his identification in it being lost in this city.

    I put it in my pocket and went home. In my apartment, I checked the online phone book {#blank#}7{#/blank#}(find) out whether there was someone who matched the name on the cards in the wallet, but without luck. I picked up the bank card and had {#blank#}8{#/blank#} thought. Because I wanted to help the guy, I called his bank. But the girl over the phone said they could not give out any personal information about their clients. So I left my contact information with her and asked her to tell the {#blank#}9{#/blank#}(own) to contact me. Two days later, a very {#blank#}10{#/blank#}(thank) gentleman appeared at my office and I gave him back his wallet.

Body language is one of {#blank#}1{#/blank#} most powerful means of communication, often even more powerful than {#blank#}2{#/blank#}(speak) language. People around the world show all kinds of feelings, wishes and attitudes that they might never speak aloud. {#blank#}3{#/blank#} is possible to "read" others around us, even {#blank#}4{#/blank#}they do not want us {#blank#}5{#/blank#}(catch) their unspoken communication. Of course, body language can be misread, but many{#blank#}6{#/blank#}(gesture) and actions are universal. The most universal {#blank#}7{#/blank#}(face) expression is, of course, the smile—its function is to show happiness and put people {#blank#}8{#/blank#} ease. It does not always mean that we are {#blank#}9{#/blank#}(true) happy, however. Smiles around the world can be false, hiding other feelings like anger, fear or worry. There {#blank#}10{#/blank#}(be) unhappy smiles, such as when someone "loses face" and smiles to hide it. However, the general purpose of smiling is to show good feelings.