Dujiangyan is the oldest man-made water system in the world, and a wonder in the development of Chinese science.{#blank#}1{#/blank#} (build) over 2, 200 years ago in what is now Sichuan Province in Southwest China, this amazing engineering{#blank#}2{#/blank#}(achieve) is still used today.

    In ancient times, the region in which Dujiangyan now stands{#blank#}3{#/blank#}(suffer) from regular floods caused by overflow from the Minjiang River.{#blank#}4{#/blank#} (help) the victims of the flooding, Li Bing, the region governor, together with his son, decided to find a solution. Li Bing, the region governor, together with his son, decided t find a solution. Li designed a series of channels built at different levels along Mount Yulei that would take away the floodwater while leaving the river flowing naturally.{#blank#}5{#/blank#} (good) still, the extra water could be directed to the dry Chengdu Plain, making{#blank#}6{#/blank#}suitable for farming.

    Once the system was finished, no more floods occurred and the people were able to live {#blank#}7{#/blank#}(peaceful). Today, Dujiangyan is admired by scientists from around the world because of one feature. Unlike modern dams{#blank#}8{#/blank#} the water is blocked with a huge wall, Dujiangyan still lets water flow through the Minjiang River naturally{#blank#}9{#/blank#} (enable) ecosystem(生态系统) and fish populations to exist{#blank#}10{#/blank#}harmony.

    When you are thirsty, you can drink some green tea. It tastes good and it's very healthy. The Chinese {#blank#}1{#/blank#} （know）about the benefits of green tea since ancient times, and they use {#blank#}2{#/blank#} to treat everything from headaches to depression. They have {#blank#}3{#/blank#}（actual）been using green tea as a medicine for over 4,000 years.

    Nowadays, there is scientific evidence of the health benefits of green tea. According to one study {#blank#}4{#/blank#} （publish）in a cancer research journal, drinking green tea {#blank#}5{#/blank#}（reduce）the risk of some types of cancer {#blank#}6{#/blank#} nearly sixty percent. USA researchers have also found that green tea may prevent the{#blank#}7{#/blank#}（grow）of cancer cells. There is also new evidence {#blank#}8{#/blank#}green tea can help to destroy bacteria in our bodies. It is especially effective at getting rid of the bacteria on your {#blank#}9{#/blank#}（tooth）and keep them healthy!

    According to the Chinese proverb, “It is {#blank#}10{#/blank#}（good）to go without food for three days than without tea for one.” So, in brief, you should definitely try a cup of green tea. It seems that it can only do you good.

    When in 1984 I. M. Pei, then the most sought-after architect in America, {#blank#}1{#/blank#} (present) his plans for a 70-foot glass pyramid in the 18th-century courtyard of the Louvre, the general{#blank#}2{#/blank#}(react) was anger. Because Mr. Pei was Chinese-American, he{#blank#}3{#/blank#} (apparent) had no under standing of the Louvre, or Paris, or France.

    However, these remarks did not annoy him. With quick enthusiasm and wide smiles, he took them. He had been asked to design {#blank#}4{#/blank#}new entrance for the museum and{#blank#}5{#/blank#} everyone's surprise, instead of adding on some concrete block, he had created a great welcoming space: put a winding staircase underground and capped it with a ray of light {#blank#}6{#/blank#}did not hurt the old facades(外墙).

    When he was a child, his imagination {#blank#}7{#/blank#}( shape) by his family's ancient gardens at Suzhou in Jiangsu. There, he would wander winding{#blank#}8{#/blank#}(path) through fantastic rocks towards pavilions (亭子), unconsciously {#blank#}9{#/blank#} (absorb) the beauty of the surroundings.

    Mr. Pei built a hotel complex at Fragrant Hill outside Beijing, after returning to China in 1974. He regarded this as a chance{#blank#}10{#/blank#} (bring) the Chinese away from their dull eastern European blocks and back to the domestic traditions they had lost.