You are twenty-one years old and live a happy and peaceful life. {#blank#}1{#/blank#} one day, your doctor tells you that you have a serious disease and will die soon. What would you do?{#blank#}2{#/blank#} (probable) most of us might feel very sad and give up our dreams and hopes for the future. Here is {#blank#}3{#/blank#} the great scientist, Stephen Hawking, did.

    Hawking wasn't {#blank#}4{#/blank#} (discourage) because of his physical condition.{#blank#}5{#/blank#}, he went on with his study of the universe. In 2002, Hawking was invited to China. He told Chinese students about his theories and thoughts {#blank#}6{#/blank#} some of the greatest questions: what is time, how the universe began, and what are black holes. He impressed the audience with his humor, confidence and of course his {#blank#}7{#/blank#} (wise).

    Hawking became famous in the early 1970s. In 1988, he wrote A Brief History of Time, in {#blank#}8{#/blank#} he explained difficult theories in a simple way. The book {#blank#}9{#/blank#} (sell) well since it came out.

    Stephen Hawking is a man with a strong will and he is regarded as the {#blank#}10{#/blank#} (great) mind in physics since Albert Einstein.

    Keeping a diary in English is one of the effective ways to improve our English writing ability.

    {#blank#}1{#/blank#}(compare) with other forms of writing, it is shorter and takes {#blank#}2{#/blank#}(little) time. It can help us to develop the habit of thinking in English. If we persist in(坚持) this practice, gradually we'll learn how to express {#blank#}3{#/blank#}(we) in English. In keeping a diary in English, we certainly run up against many{#blank#}4{#/blank#}(difficult). In the first place, it often happens that we have trouble in {#blank#}5{#/blank#}(find) appropriate words and phrases to give expression to our mind. Secondly, there {#blank#}6{#/blank#}(be) many idiomatic ways of saying things in Chinese. And it is {#blank#}7{#/blank#}(extreme) hard for us to put them into English properly.

    As far as I am concerned, my suggestion is {#blank#}8{#/blank#} we should always have a notebook and a Chinese-English dictionary within easy reach. Whenever something beats us, we can first put it down in our notebook and then consult our dictionary. We can also ask our English teacher {#blank#}9{#/blank#} help, if necessary. In short, I believe that it is of great use to keep a diary in English for{#blank#}10{#/blank#} development of our writing skills.

    Most of us use memes(表情包) when{#blank#}1{#/blank#} (talk) to our friends on WeChat or QQ. And {#blank#}2{#/blank#} all the file formats(文件格式). GIF is probably the most popular.

    A GIF is usually{#blank#}3{#/blank#} short funny video that only lasts for a few seconds.

    The GIF turned 30 this year,{#blank#}4{#/blank#} is even two years older than the World Wide Web itself. Ever since the GIF{#blank#}5{#/blank#} (create) in 1987, it has long been overlooked. It wasn't until the age of smartphones and social media{#blank#}6{#/blank#} it became part of our daily lives.

    The GIF does a {#blank#}7{#/blank#} (good) job of showing people's feeling than short text messages do. It is also a very small file format compared with regular videos, which helped it become popular among smartphone {#blank#}8{#/blank#} (use).

    Because of its{#blank#}9{#/blank#} (popular), Oxford Dictionaries name “GIF” the word of the year in 2012. There are even search services specifically(专门地) for GIFs, such as Tenor and Giphy. And if we can't find anything we like there{#blank#}10{#/blank#} is easy to create our own GIFs on apps like DSCO and Giphy Cam.

    Babies are great and lots of fun. We all love babies and we need babies, too. Many countries don't have enough of them. That's a big problem.

    Most babies grow up to become workers. As the number of workers {#blank#}1{#/blank#} (grow), a country can produce more things. That often means people's lives become easier and more {#blank#}2{#/blank#} (comfort). But without enough babies, a country {#blank#}3{#/blank#} (gradual) gets old. Many countries provide services {#blank#}4{#/blank#} their people like health care. These services {#blank#}5{#/blank#} (pay) for by young working people. But they are mostly used by old people {#blank#}6{#/blank#} aren't working any more. Without enough young people, countries can't afford these things.

    Countries are dealing with {#blank#}7{#/blank#} problems in different ways. Many countries are encouraging people {#blank#}8{#/blank#} (have) more babies. Since raising children is expensive, some countries give families extra money. Some other countries change rules {#blank#}9{#/blank#} it is easier for mothers to study and work. Others are welcoming immigrants (移民) from other{#blank#}10{#/blank#} (place). How do you think this problem should be solved?

    With so much information available in books and online, it's easy {#blank#}1{#/blank#} (learn) a few new facts each day. But how much of that do you {#blank#}2{#/blank#} (actual) remember? {#blank#}3{#/blank#}your answer is not much, here is the good news. Scientists at RMIT University in Melbourne, Australia, recently designed a new typeface (字体) {#blank#}4{#/blank#} was invented with read-it-and-forget-it people {#blank#}5{#/blank#} mind. Very appropriately, it's called Sans Forgetica.

    The idea behind Sans Forgetica is simple. The typeface is a tiny bit {#blank#}6{#/blank#} (difficulty) to read, which {#blank#}7{#/blank#} (mean) your brain has to work twice as hard to understand what it says. Because of that deeper focus, you'll have a better memory for whatever you're reading. That's not just a theory, either. The typeface was created by a team of {#blank#}8{#/blank#} (researcher) from RMIT University's School of Design and its Behavioural Business Lab. The group worked with a famous typographer Stephen Banham to test and improve {#blank#}9{#/blank#} (they) product.

    The typeface uses principles of cognitive psychology to create an effect {#blank#}10{#/blank#} (know) as desirable difficulty, the researchers note, which causes the brain to take part in deeper cognitive processing. The result is improved memory.