Over time, many flowering plants and {#blank#}1{#/blank#} (they) animal pollinators(传粉昆虫) have evolved together. The plant needs the animal to pollinate it and the animal {#blank#}2{#/blank#} (reward) with food called nectar when it visits the flowers. Pollen becomes {#blank#}3{#/blank#} (attach) to the animal during its visit to a flower{#blank#}4{#/blank#} is then passed on to another plant's blossom on its next visit. So pollination takes place, therefore {#blank#}5{#/blank#} (increase) the chances of the survival of the plant species.

    The type of pollinator {#blank#}6{#/blank#} (depend) on the characteristics of the flower such {#blank#}7{#/blank#} its colour, shape, size and smell. For example, yellow flowers attract bees, while red flowers attract {#blank#}8{#/blank#}  (butterfly). The nectar in some flowers can only be reached by a bird {#blank#}9{#/blank#} a long bill or a long-tongued moth or butterfly. Flowers that attract bees often have a special way {#blank#}10{#/blank#} (guide) the bees to the nectar inside.

    A lot of people in our country take a nap after lunch, so do my classmates.{#blank#}1{#/blank#} (recent) I have conducted a survey on{#blank#}2{#/blank#} (take) a nap after lunch among my classmates. Most of them are in the habit of sleeping for{#blank#}3{#/blank#}while at noon as they believe it does good to them. The majority prefer{#blank#}4{#/blank#}do so around 12:30 and the nap usually lasts for about 30 minutes. They often {#blank#}5{#/blank#} (choice) to sleep at home instead of in their classroom {#blank#}6{#/blank#}dormitory.

    Hopefully, the result of my survey can draw the attention of our parents and school. Since most students are in need of a nap, proper{#blank#}7{#/blank#} (arrange) should be made so that students can have a good rest after a whole {#blank#}8{#/blank#} (morning) hard work. Students should not be{#blank#}9{#/blank#} (ask) to do extra work during this period of time. After all , having a nap after lunch, one can feel {#blank#}10{#/blank#}(refresh) and energetic enough to study more efficiently in the afternoon.

    There was once a {#blank#}1{#/blank#}distinguish king whose name was Tamerlane. Like Alexander the Great, he wished to become one of the masters of the whole world. So he raised a great army and made war on other countries. He conquered many kings and occupied many cities. But with his army{#blank#}2{#/blank#} (beat) at last, Tamerlane escaped alone from the field of battle, looking{#blank#}3{#/blank#}(misery)

    For a long time he wandered in fear from place to place. His enemies were looking for him. He was about to lose all hope. One day lying under a tree, he thought of his failure. Feeling discouraged, he supposed that he couldn't carry on any longer. Suddenly he saw a small object climbing up the trunk (树干) of the tree. He looked more closely and saw an ant and a grain of wheat{#blank#}4{#/blank#}(carry) by it.

There was a hole in the tree only a little way above, and that was the home of the ant. “You are brave, Mr.Ant,” he said, “but you are carrying something that is too heavy for you.” Just as he spoke, the ant lost its footing and fell to the ground. But it still held on to the grain of wheat. Tamerlane watched the little insect. It tried the second time. The twentieth time—but always{#blank#}5{#/blank#}vain. “I am{#blank#}6{#/blank#} (awful) sorry for you.” Tamerlane thought. He had some doubt {#blank#}7{#/blank#}the ant could succeed or not. Then it tried the twenty-first time. Slowly, one little step at a time, it climbed across the rough place at{#blank#}8{#/blank#}it had fallen so often. The next minute it climbed safely into its home, carrying the grain of wheat. His constant efforts paid off. “Well done!” said Tamerlane, “you've taught me a lesson. I, too, will try, try again, till I succeed.” He {#blank#}9{#/blank#}(set) about reorganizing his army. And at last he realized his ambition{#blank#}10{#/blank#}(defeat) once or twice doesn't matter too much. What matters much is to lose heart forever.

    Barbara Jordan was a lawyer, educator and member of Congress. As a politician, Barbara Jordan worked for social change. She {#blank#}1{#/blank#} (seek) to make a difference for all Americans using her {#blank#}2{#/blank#} (politics) influence.

    Barbara Jordan became the first African-American woman {#blank#}3{#/blank#} (elect) to the United States Congress to represent Texas. {#blank#}4{#/blank#} helped Barbara gain her national {#blank#}5{#/blank#} (recognize) was that she became a member of the congressional committee investigating President Richard Nixon in 1974.

    Barbara Jordan was born in the southern city of Houston, Texas in 1936. She was {#blank#}6{#/blank#} (young) of the three daughters in her family. Her father was a Baptist minister. When she was a child, Barbara's parents pushed her to succeed. Barbara Jordan said her parents would criticize her for not {#blank#}7{#/blank#} (speak) correct English. They urged her to become a music teacher, because they said that was the only good job for a black woman at that time. Her sisters did become {#blank#}8{#/blank#} (teacher). Barbara Jordan, however, explained later that she wanted to do something unusual.

    At first she thought about being a pharmacist, {#blank#}9{#/blank#} scientist who is an expert in medicines. After she became the first African-American state senator(参议员), her career in politics took {#blank#}10{#/blank#}.

    John Snow was a famous doctor {#blank#}1{#/blank#}was so expert that he{#blank#}2{#/blank#} (attend) Queen Victoria as her personal physician. But he became{#blank#}3{#/blank#} (inspire) when he thought about helping ordinary people{#blank#}4{#/blank#} (expose) to cholera. This was the{#blank#}5{#/blank#} (dead) disease of its day. Neither its cause nor its cure {#blank#}6{#/blank#}(understand). So many thousands of terrified people died every time there was {#blank#}7{#/blank#}outbreak. John Snow wanted to face the challenge and solve this problem. He knew that cholera would never be controlled until its cause was found. In 1854 when cholera broke {#blank#}8{#/blank#}, he began to gather information and found the evidence. It seemed that the polluted water was {#blank#}9{#/blank#} (blame). John Snow suggested the source of all water supplies{#blank#}10{#/blank#} (examine). Finally "King Cholera" was defeated.

    A cheerful panda {#blank#}1{#/blank#} (call) Bing Dwen Dwen has been chosen as the Olympic mascot for Beijing 2022 Olympic Winter Games. The new Olympic mascot will serve as an ambassador (大使) for winter sports, {#blank#}2{#/blank#} (bring) joy to those who participate in and watch the Olympic Winter Games. "Bing" means ice and symbolizes purity and strength. "Dwen Dwen" relates to children and means {#blank#}3{#/blank#} (honest), health, liveliness and loveliness. The mascot represents the strength and willpower of athletes and will help to promote the Olympic spirit.