In order to know a foreign language thoroughly, four things are necessary. Firstly, we must understand the language when we hear{#blank#}1{#/blank#}spoken. Secondly, we must be able to speak it correctly with confidence and without hesitation.{#blank#}2{#/blank#} (three), we must be able to read the language, and fourthly, we must be able to write it. We must be able to make sentences that are grammatically correct.

There is no easy way to success {#blank#}3{#/blank#}language learning. {#blank#}4{#/blank#}good memory is of great help, but it is not enough only {#blank#}5{#/blank#}(memorize) rules from a grammar book. It is not much use learning by heart long a list of words and {#blank#}6{#/blank#}(they) meaning, studying the dictionary and so on. We must learn by using the language. If we{#blank#}7{#/blank#}(satisfy) with only a few rules we have memorized, we are not really learning the language. ＂Learn through use＂ is a good piece of {#blank#}8{#/blank#}(advise) for those {#blank#}9{#/blank#}are studying a new language. Practice is important. We must practice speaking and {#blank#}10{#/blank#}(write) the language whenever we can.

    Former First Lady Michelle Obama's memoir (回忆录) Becoming has become the best-selling book {#blank#}1{#/blank#} ( publish) this year in the US just 15 days after publication. The sales figure (two million copies){#blank#}2{#/blank#} (announce) by Penguin Random House last Friday.

    Becoming mainly tells the story about {#blank#}3{#/blank#} Michelle has balanced work and family {#blank#}4{#/blank#} a professional woman. The book is {#blank#}5{#/blank#} window into the personal life of the first African-American First Lady and the first black US President. About marriage, Michelle mentions, “I married a creative thinker, and I had to remind {#blank#}6{#/blank#}(I) that we were adapting to each other to make two individuals a solid, permanent us.” In the memoir, Michelle speaks {#blank#}7{#/blank#} (honest) of difficulties she met with in her life. The 54-year-old also criticizes (批评) US President Donald Trump, {#blank#}8{#/blank#} (write) that she can “never forgive” him. That's because during his presidential campaign. Trump's “birther” theory that Michelle's husband was not born in the US {#blank#}9{#/blank#} therefore was not a legal President put her family's {#blank#}10{#/blank#} (safe) at risk.

You Are a Time Traveler

    Time travel has long fascinated people. Traveling to the past or future would allow you to live in exciting periods of history or get a glimpse(一瞥) of {#blank#}1{#/blank#} the future holds. Think about it. If you could travel in time, where would you go? Perhaps you would voyage far ahead of the present day {#blank#}2{#/blank#} (meet)your future self! What about watching an original performance of {#blank#}3{#/blank#} Shakespeare play in Elizabethan England? Or maybe you would pay a visit to {#blank#}4{#/blank#} (you)as a baby.

    Since these ideas are universally appealing to everyone, it is {#blank#}5{#/blank#} (nature)that time travel interests so many writers, filmmakers, and scientists. It has been depicted in a {#blank#}6{#/blank#} (various) of media, such as literature, film, and science reports. But you might be surprised to realize that {#blank#}7{#/blank#} the smallest sense of the term, we are all time travelers. Even as you sit here {#blank#}8{#/blank#} (read)this article, time is racing forward. The future becomes the past as soon as it happens. The present is so fleeting(稍纵即近)! Everything you do quickly {#blank#}9{#/blank#} (become) part of the past, and so it is that we move through time. The famous scientist Albert Einstein, assigned a mathematical formula to this idea, {#blank#}10{#/blank#} is called The Theory of Relativity.

    Five meters below the surface of the North Sea, near the southernmost tip of Norway, Europe's first underwater restaurant is to {#blank#}1{#/blank#} (complete).The110-foot long structure, an oblique (斜的) concrete slab (平板) that {#blank#}2{#/blank#} (look) like a sunken periscope, started in July 2018 and work is now underway to complete the interiors, predicting the public opening {#blank#}3{#/blank#} spring 2020.

    The restaurant, {#blank#}4{#/blank#} (call) Under, is the design of Norwegian outfit Snhetta, {#blank#}5{#/blank#} has made a name for itself with {#blank#}6{#/blank#} (project) such as the Bibliotheca Alexandrina in Egypt, the Oslo Opera House, the National September 11Memorial Pavilion and the renovation of Times Square in New York.

    When {#blank#}7{#/blank#} (finish), the structure {#blank#}8{#/blank#} (contain) about 100 guests with a total internal area of about 500 square meters (5, 300 square feet). It has three levels, offering unique underwater views of the {#blank#}9{#/blank#} (surround) sea environment through {#blank#}10{#/blank#} 11-meter (36 feet) wide panoramic (全景的) window.