As is known to all, we live in a world of germs（细菌）. It is impossible to avoid exposure. Genetic makeups may give some people {#blank#}1{#/blank#} advantage over others. However, it does not stop people from becoming sick.

    All of us have been a victim of an {#blank#}2{#/blank#} (ill) at some point in our lives. Moreover, it is likely that we {#blank#}3{#/blank#} (get) sick again in the future. Our best chances of avoiding sickness {#blank#}4{#/blank#} (be) by exercising and employing good {#blank#}5{#/blank#} (habit).

    While good hygiene and exercise serve as obvious advice to most people, eating {#blank#}6{#/blank#} (healthy) is not always obvious. If you cannot define “healthy”, then your immune system will be happy {#blank#}7{#/blank#} (tell) you. The immune system is the foundation of our health. It works for us every day to keep us well. Ask {#blank#}8{#/blank#} (you): “Are you making its job easier {#blank#}9{#/blank#} harder?”

    Like any system, the immune system is not different. It has a tolerance too. If you eat unhealthily, your immune system will make you aware of it.

    Take a step in the right direction {#blank#}10{#/blank#} including some healthy food in your diet.

    People have all turned to sad music to make themselves feel better at some point in their lives, {#blank#}1{#/blank#}why does the music with double or even triple sadness help drag people out of low spirits?

    A new study throws light on what's going on inside people's brains when they match their music to their feelings, and it looks as if sad music can be enjoyable, rather than{#blank#}2{#/blank#}(simple) depressing. Music of this sort can arouse positive memories in people's life , thus {#blank#}3{#/blank#}(lift)their mood.

Psychologist Adrian North from Curtin University in Australia says there{#blank#}4{#/blank#}(existence) two groups of possible explanations for why people enjoy listening to sad music like this—one from social psychology, and the other from cognitive neuroscience(神经学).

    {#blank#}5{#/blank#}terms of social psychology, one idea about this is that people will feel{#blank#}6{#/blank#}(good) about themselves if they focus on someone who's doing even worse. Everything's going to be okay, because this person is having {#blank#}7{#/blank#}even worse day than they are.

    Another idea from social psychology is that people like to listen to the very music{#blank#}8{#/blank#}shows their present life circumstances, because this kind of music makes them feel they are understood. With their emotions{#blank#}9{#/blank#}(share), they definitely get a certain amount of comfort.

    So, the{#blank#}10{#/blank#}(conclude) again—sad music does cheer people up, and it works far better than happy music, in most cases.

Li Hua: I've {#blank#}1{#/blank#} (hear) that you enjoy Beijing opera, Edward. Is that true?

Edward: Yes, very much. I am really interested in this kind of art.

Li Hua: Sure, many {#blank#}2{#/blank#}(foreigner) are fond of it as much as Chinese people do.

Edward: I think Beijing opera is one of the most {#blank#}3{#/blank#} (interest) plays in the world, though I sometimes find it difficult for me {#blank#}4{#/blank#} (understand).

Li Hua: I feel the same way. There is a show in the theatre this evening. Would you like to go?

Edward: Really? {#blank#}5{#/blank#} does it begin?

Li Hua: At 7:30. And I guess it {#blank#}6{#/blank#} (last) two hours.

Edward: I'm free this evening. Let's go to see {#blank#}7{#/blank#} play together. Is that ok?

Li Hua: OK. {#blank#}8{#/blank#} I'll have to send an e-mail first.

Edward: It doesn't matter. It won't take you too long. I can just book two tickets by phone while you {#blank#}9{#/blank#} (send) your e-mail.

Li Hua: Good idea！

Edward: {#blank#}10{#/blank#} the way, do you know the number for booking tickets?

Li Hua: Of course. It's 3699899.

Edward: I think we will have a good time tonight.

    On January 25, 2020, over a billion people in China and millions around the world will celebrate the Chinese New Year, or the Spring Festival. The ancient tradition, {#blank#}1{#/blank#} date is determined by the lunar calendar and falls somewhere between January 21 and February 20 each year, is the{#blank#}2{#/blank#} (long) and most important of all Chinese festivals.

The preparations will {#blank#}3{#/blank#} (official) begin with Little Year on January 17, 2019. It is observed with a day of memorial and prayer ceremonies. Other Little Year activities include cleaning the house {#blank#}4{#/blank#}(sweep) away bad luck and hanging spring couplets —red decorations hung in pairs —on doorways for wealth. Since red {#blank#}5{#/blank#} (believe) to keep misfortune and evil spirits away, it can be noticed in everything from clothing to {#blank#}6{#/blank#}(lantern) used to decorate houses.

    Often {#blank#}7{#/blank#}  (consider) the most important meal of the year, the reunion dinner is both delicious and rooted in Chinese tradition. {#blank#}8{#/blank#}whole chicken symbolizes family togetherness, while long uncut noodles show longevity (长寿). Wealth is represented by dumplings and spring rolls. Children receive red envelopes filled {#blank#}9{#/blank#} money and inspiring messages from elders and are often allowed to stay up late to watch the {#blank#}10{#/blank#}(amaze) fireworks shows.

    The two-week long celebrations will end on February 8 — the day of the full moon — with the Lantern Festival.

Linqing City is connected to Beijing, over 400 kilometers away, through its tribute(贡品) bricks. Linqing tribute bricks, or Gong Bricks, were transported to the country's capital through the Grand Canal for the {#blank#}1{#/blank#} (construct) of historical buildings like the Forbidden City. Local people call the type of brick a legend {#blank#}2{#/blank#} flows from the Grand Canal. This "legend" {#blank#}3{#/blank#}(list) as an example of national cultural heritage on June 14, 2008.

Linqing sits at the confluence (交汇处) of the Weihe River and the Grand Canal, making transportation very {#blank#}4{#/blank#}(convenience) .

During the Ming and Qing (1368-1912) dynasties, Linqing was a large important city {#blank#}5{#/blank#}a population of over one million. Linging tribute bricks earned their reputation during the Ming Dynasty, when they were {#blank#}6{#/blank#}(wide) used for imperial buildings. Apart from the transport links, the quality of the brick is one factor to make {#blank#}7{#/blank#}famous.

The "Lianhua" soil in Linging is {#blank#}8{#/blank#}ideal raw material for bricks. The city is located in the plain of the Yellow River. So when the Yellow River floods, there will always be a layer of fine sandy soil {#blank#}9{#/blank#}(cover) the local soil. Over time, a layer of sandy soil and a layer of clay will form an overlapping structure, known as "Lianhua". Linging tribute bricks {#blank#}10{#/blank#}(make) of this soil will not be out of shape easily.