Humans like to live and work in groups. Language is the “cement”(胶合剂){#blank#}1{#/blank#}holds these groups together. Language is part of culture. Culture, in this sense{#blank#}2{#/blank#}(mean)all those customs, skills, and attitudes that are part of the behavior of a {#blank#}3{#/blank#}(particularly) group. What you think {#blank#}4{#/blank#}what you want in life are all affected by the culture of the group in which you{#blank#}5{#/blank#} (raise). Groups of people live in different ways. They may have different skills, organizations, and art forms. Their family life may be completely different from yours.

    Human beings are inventive animals. They can decide to change their cultures in order to meet various{#blank#}6{#/blank#}(situation). Of all living things, human beings are the  {#blank#}7{#/blank#}(clever). They can choose {#blank#}8{#/blank#}(live)in many environments and in a wide variety of ways. Only human beings can choose where and how they want to live and then improve the physical environment to help{#blank#}9{#/blank#} (they)realize these choices. Acquiring the wisdom to make wise choices {#blank#}10{#/blank#}(be) the lasting challenge of being human.

    Yuan Longping is one of China's most famous scientists. {#blank#}1{#/blank#}(work) the land to do his research, he considers himself a farmer. Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, {#blank#}2{#/blank#} he has struggled for the past five decades. When he was young, he saw many people dying of {#blank#}3{#/blank#} (hungry), which was a {#blank#}4{#/blank#}(disturb) problem in many parts of the countryside. Then, he devoted all his time and energy {#blank#}5{#/blank#}searching for a way to increase rice harvests without expanding {#blank#}6{#/blank#} area of the fields. In 1973, he became the first agricultural pioneer in the world {#blank#}7{#/blank#} (grow) rice that has a high output. Now, he remains {#blank#}8{#/blank#}(circulate) his knowledge in many less developed countries to increase their rice harvests. He is quite {#blank#}9{#/blank#}(satisfy) with his life. However, he doesn't care about being famous. He feels it gives him less freedom to do his research. In his view, spending money on himself or {#blank#}10{#/blank#} (lead) a comfortable life means very little to him. He therefore gives much money to equip others for their research in agriculture.

    Last Saturday, my friend and I were walking back home after a nice evening. I {#blank#}1{#/blank#}(ask) my friend if we could walk through the town instead of taking our usual shortcut. So we did. {#blank#}2{#/blank#} (sudden), a few {#blank#}3{#/blank#}(step) ahead, we saw a woman, {#blank#}4{#/blank#}was sitting on the edge of the sidewalk. She looked bad and when we asked her if she felt all right, we realized she was badly injured{#blank#}5{#/blank#} covered with blood. While my friend can back to our closest friend's place to get a thick cover, a young fellow joined {#blank#}6{#/blank#} (we) and called an ambulance. All along I sat next {#blank#}7{#/blank#} her, talking and {#blank#}8{#/blank#} (listen) to keep her awake until the ambulance arrived. She was badly {#blank#}9{#/blank#}(shock) and started to fall asleep. I knew that it was of great {#blank#}10{#/blank#}(dangerous) and she might have lost consciousness（意识）. We hope she is safe and sound now.