Every individual is a member of a group called the community, and it is the duty of every citizen {#blank#}1{#/blank#} ask what he can do for his community. A good citizen {#blank#}2{#/blank#}(相信) that he should serve the community and not the community serve h{#blank#}3{#/blank#}. As students, there are many ways in {#blank#}4{#/blank#} you can serve the community. Above all, however, you have to acquire a certain amount of skill and experience b{#blank#}5{#/blank#} you can be of service to others. Your school has lots of{#blank#}6{#/blank#}(活动) which prepare you {#blank#}7{#/blank#} good citizenship. Many school societies train students to become good citizens who later p{#blank#}8{#/blank#} in volunteer work and serve the public in t{#blank#}9{#/blank#} of need. If you serve your community, you will grow {#blank#}10{#/blank#} to be a good citizen with a strong sense of responsibility.

    Johnny Carson began his work in television {#blank#}1{#/blank#}his twenties. First he worked at local stations in Nebraska. Several years {#blank#}2{#/blank#} (late), he moved to Los Angeles, California. It was “The Tonight Show”{#blank#}3{#/blank#}made Johnny Carson famous for thirty years. He became {#blank#}4{#/blank#}most popular star of American television. He {#blank#}5{#/blank#}(call) “the king of late night.” Critics said Americans from all parts of the country liked him and felt they knew him.

    He did not take his fame {#blank#}6{#/blank#} (serious). For example, when asked how he became a “star”, he answered: “I started in a gas state and I cooled.” Carson's special skill was his sense of humor. Audiences laughed at his jokes he made at the{#blank#}7{#/blank#} (begin) of his show. However, sometimes they laughed even{#blank#}8{#/blank#}(hard) at the jokes that failed. He was the most{#blank#}9{#/blank#}(power) performer (表演者) on television. Many comedians (喜剧演员) and singers became successful after{#blank#}10{#/blank#} (appear) on “The Tonight Show”.

    Each year, thousands of people come to Shaanxi, China, to visit the Terracotta Army, which shows the life of Qin Shi Huang,{#blank#}1{#/blank#}country's first emperor.

    As one of the most famous tourist sights in the world, the Terracotta Army is a form of funerary (葬礼的) art{#blank#}2{#/blank#}(bury) with the First Emperor in 210 to 209 BC. It was designed{#blank#}3{#/blank#}(protect) the emperor in his afterlife.

Since their {#blank#}4{#/blank#}(discover), experts have questioned whether the life-size models of soldiers{#blank#}5{#/blank#}(base) on real warriors (勇士) or whether they came off a production line.

    In October a BBC documentary ( 纪录片) the Greatest Tomb on Earth: Secrets of Ancient China, suggested the inspiration for the Terracotta Warriors may have come{#blank#}6{#/blank#}Ancient Greece, about{#blank#}7{#/blank#}Archaeologist Li Xiuzhen said, "We now have evidence that close contact did exist between the First Emperor's China and the West."

    On the 41st International Museum Day, it was{#blank#}8{#/blank#}(official) announced that new technology has just made{#blank#}9{#/blank#}possible for visitors to be guided. Thanks to an interactive(交互式) 360-degree video, visitors can choose either to view the{#blank#}10{#/blank#}(figure) close-up or from a distance.

    Thanksgiving was drawing near and I was feeling sad about being separated from my family in Indiana.

    Would I have to prepare a traditional Thanksgiving dinner by {#blank#}1{#/blank#}(my)?

That night at Dubya's Restaurant, which was my favorite place to dine, I chatted with Dubya, the {#blank#}2{#/blank#} (own) of the restaurant. “It's too bad that this place won't be open {#blank#}3{#/blank#} Thanksgiving, or I could just come here.” I said.

    “Why not join my family for the holiday?” he said in a warm voice. I knew Dubya and his wife well, but I didn't think we were close enough {#blank#}4{#/blank#} (share) Thanksgiving dinner. I was sure he was joking. But Dubya soon handed me a note on which directions to their house and their phone number {#blank#}5{#/blank#} (write).

    And two days later, I reached Dubya's house. As{#blank#}6{#/blank#} (expect), the food was great but the company（陪伴）was even {#blank#}7{#/blank#} (good). I truly felt I belonged there.

    Of course, I wrote them {#blank#}8{#/blank#} thank-you letter the next week, but I couldn't really put into words {#blank#}9{#/blank#}that Thanksgiving dinner invitation had meant to me. I've never forgotten their {#blank#}10{#/blank#} (kind) and that very special Thanksgiving.

    As we all know, Columbus was a great explorer. He left Spain in September 1492,{#blank#}1{#/blank#} (look) for gold. Native Americans greeted him, offering gifts of corn. Columbus found little gold on that trip, but he collected many {#blank#}2{#/blank#} (plant), including corn, to bring back to Spain.

    Columbus didn't know it, but the corn was much {#blank#}3{#/blank#} (valuable) than gold. Farmers from Europe to Asia accepted it {#blank#}4{#/blank#} (immediate). They grew it on cold mountainsides and in rainforests. So it {#blank#}5{#/blank#} (feed) millions of people all over the world today.

    On his second trip, Columbus brought back a few chocolate beans to make chocolate. Europeans and Asians loved this new drink, and soon they were paying a great deal of money for the beans. Chocolate beans became so valuable in Central America {#blank#}6{#/blank#} they {#blank#}7{#/blank#} (use)as cash for 200 years.

    Tomatoes and potatoes took some time to become popular. Eventually, {#blank#}8{#/blank#}, they became the basis of a lot of popular foods. {#blank#}9{#/blank#} is hard to imagine life without fried potatoes or chocolate. Thanks{#blank#}10{#/blank#} native American culture, many people are able to enjoy lots of tasty food.

    While not everyone will have pondered (思索) the subject while staring out of the window during {#blank#}1{#/blank#} flight, the question as to why aeroplanes have circular windows rather than square ones is interesting.

    Over the years, aerospace engineering {#blank#}2{#/blank#} (make) huge leaps in aeroplane technology, meaning planes can carry {#blank#}3{#/blank#} passengers and go faster. The planes have also changed shape to increase safety — including the windows.

    In the 1950s, {#blank#}4{#/blank#} jetliners were starting to become mainstream, the De Havilland Comet came {#blank#}5{#/blank#} fashion. With a pressurised cabin, it was able to go higher and faster than other aircraft.

    {#blank#}6{#/blank#}, the plane had square windows and in 1953 two planes fell apart in the air, {#blank#}7{#/blank#} (kill) 56 people in total.

    The reason for the {#blank#}8{#/blank#} (crash)? The windows.

    {#blank#}9{#/blank#} there's a corner, there's a weak spot. Windows, having four corners, have four potential weak spots, making them likely to crash under stress — such as air pressure.

    By curving the window, the stress that would {#blank#}10{#/blank#} (eventual) crack the window corner is distributed and the likelihood of it breaking is reduced.