One day a teacher asked her students to list the names of the other students in the room on two sheets of paper, {#blank#}1{#/blank#}(leave) a space between each name.Then she told them to think of the nicest thing{#blank#}2{#/blank#}they could say about each of their classmates and write it down.{#blank#}3{#/blank#}took the rest of the class some time to finish the work,and then each handed in the{#blank#}4{#/blank#}(sheet).

    That Saturday,the teacher wrote down the name of each student on a separate sheet of paper,and listed what everyone else{#blank#}5{#/blank#}(say) about that person.{#blank#}6{#/blank#}Monday she gave each student his or her list.Before long,the entire class was smiling.“Really?” she heard their whisper.“I never{#blank#}7{#/blank#}(know) that I meant anything to anyone!” No one ever mentioned those papers in class again.She never knew{#blank#}8{#/blank#}they discussed them after class or with their parents, but it didn't matter.The exercise had achieved its purpose.

    Several years{#blank#}9{#/blank#}(late),all her students started to gather around.One of them,Vicki,reached into her pocket,took out her wallet and showed her{#blank#}10{#/blank#}(wear) list to the group.“I carry this with me at all times.I think we all saved our lists.”That's when the teacher finally sat down and cried.

    The story happened in ancient times. A king was so clever that he thought of a good way to test{#blank#}1{#/blank#}his men were reliable.

    One day, he had a huge rock{#blank#}2{#/blank#}(place) on a roadway at night. Then he hid {#blank#}3{#/blank#} (him) nearby and watched carefully to see if anyone would remove the big rock. Some{#blank#}4{#/blank#}(wealth) businessmen and high officials came by, but they simply walked around it. Many of them even loudly blamed the king for not keeping the roads clear, but none of them would bother{#blank#}5{#/blank#}(get) the big stone out of the way.

    Then a villager came along carrying a load of vegetables. On {#blank#}6{#/blank#}(approach) the big rock, he stopped and laid down his burden, trying hard to move the stone to the side of the road. After much pushing, he{#blank#}7{#/blank#}(final) succeeded. As the villager picked up his load of vegetables, he noticed a purse lying in the road where the rock{#blank#}8{#/blank#}(be). The purse contained many gold coins and a note from the king, saying that the gold was for the person{#blank#}9{#/blank#} removed the huge rock from the road.

    The villager learned a valuable lesson that many others would never understand: Every obstacle presents{#blank#}10{#/blank#} opportunity to improve one's condition.

    Africa has been called the “dark continent” for a long time because {#blank#}1{#/blank#} lacks technology, electricity and other {#blank#}2{#/blank#} (achieve) of the modem world. However, it is beginning to change. Africa is starting to catch up with {#blank#}3{#/blank#} (industry) countries and the driving force behind this new development is the Internet and the World Wide Web.

    Now Africa is the fastest {#blank#}4{#/blank#} (grow) place on the earth. So far, governments, businesses and individuals {#blank#}5{#/blank#} (realize) that in order to develop quickly, modem technology is needed.

    Only ten years ago a SIM card used to cost about $100 in Niger. Today you can buy one for under $2 and phone calls have become much {#blank#}6{#/blank#} (cheap), too. As a result, 23% of its population are now mobile phone users.{#blank#}7{#/blank#} (equip) with this new service, people can connect to the Internet easily. Many Nigerians have access {#blank#}8{#/blank#} the World Wide Web now.

    In Ethiopia farmers can now get the prices of their farming products in real time. Until recently, most of the small farmers of the country did not know {#blank#}9{#/blank#} the prices of their products were at {#blank#}10{#/blank#} certain time. Today, they can phone in and get an up-to-the-minute report on prices.

    The Great Wall was listed as a World Heritage by UNESCO in 1987. Just like a dragon, it winds up and down across deserts, grasslands and mountains,{#blank#}1{#/blank#}( run) approximately 21,196 kilometers from east to west.

    The{#blank#}2{#/blank#}( construct) of the Great Wall was not that easy, {#blank#}3{#/blank#}drew heavily on the local resources for building materials. The walls were{#blank#}4{#/blank#}( original) built in the Spring & Autumn Period and the Warring States Period. Emperor Qin Shi Huang succeeded in his effort to have them joined together. Since then, the Great Wall{#blank#}5{#/blank#}( serve) as a monument of the Chinese nation throughout history.

    With {#blank#}6{#/blank#}history of about 2,700 years, some parts of the Great Wall are now {#blank#}7{#/blank#}ruins or have disappeared. However, the Great Wall of China is still one of the most appealing{#blank#}8{#/blank#}(attraction) all around the world owing to its historical significance. The best-known part of the Great Wall of China, Badaling, {#blank#}9{#/blank#}(locate) 43 miles northwest of Beijing, attracts thousands of national and foreign tourists every day.

    Today, the Great Wall{#blank#}10{#/blank#}(recognize) as one of the most important impressive architectural achievements in history.