A Cloud of Hope and Danger

    A small cloud floats through the air in a hospital operating room(手术室). In the room a patient, suffering from cancer, lies on a table. The cloud surrounds(包围) the patient, {#blank#}1{#/blank#} her body and filling her lungs(肺). The cloud is not smoke or steam. It is made of millions of microscopic robots called nano-robots( 纳米机器人) . These tiny robots move from cell(细胞) to cell in the {#blank#}2{#/blank#} body, destroying the cancer.

    Fighting cancer with nano-robots is only an idea today, {#blank#}3{#/blank#} scientists say that it could be possible in the future. Using nano-robots for good purposes such as fighting disease or repairing the environment may be the{#blank#}4{#/blank#}to many of today's problems.

    However, nano-robots could be a {#blank#}5{#/blank#} risk as well. Since nano-robots are so tiny, they will have to work in large teams of many thousands to many millions. For this reason, nano-robots will have to be programmed to build {#blank#}6{#/blank#} . Scientists will not have the ability to build millions of nano-robots one by one.

    This {#blank#}7{#/blank#} to reproduce is making some scientists worried. What if something goes wrong in the programming? Quite a lot of crazy nano-robots would be far {#blank#}8{#/blank#} than any disease. Some people think that if they get out of control, nano-robots could destroy the Earth.

    What should be done? Should we continue {#blank#}9{#/blank#} nano-robots or should we search for other methods? This is one of the many difficult {#blank#}10{#/blank#} that we have to make in the future.

    My teachers thought I was the worst student. I always {#blank#}1{#/blank#} in the test. When I was going to give up my studying, a new teacher, Miss White came to our school. She was young and helpful. One day, we had a picnic on a farm. I was silent in a{#blank#}2{#/blank#}. Miss White came up to me and talked to me {#blank#}3{#/blank#}. Her smile swept away my unhappiness. I {#blank#}4{#/blank#} by her words. I began to study hard. She often helped me with my study in her {#blank#}5{#/blank#}time. In the end, I went to a good college. She made me to see that I can be successful in life.

    After the gases get into the air, they may become clouds. Then they will {#blank#}1{#/blank#}on the ground with rain. It is one of the reasons for water pollution. And the waste{#blank#}2{#/blank#}from factories is put into rivers and lakes. Then we cannot have clean water for our life, even for drinking.

    Many plastic bags are{#blank#}3{#/blank#}everywhere in our life. They cause the white pollution. Because of it, animals eat these bags for food. Then they will become{#blank#}4{#/blank#}, and some will even die.

    So try to stop pollution as soon as possible in our life.

    Riding a Mobike on the street, you might hear some people speaking Chinese aloud. But you're not in China— you're in Manchester in Britain. In fact, you might see similar things in many {#blank#}1{#/blank#}cities. Chinese products have been going global.

    Chinese food has been enjoyed in Western {#blank#}2{#/blank#}for a long time. To meet {#blank#}3{#/blank#} people's tastes, Chinese restaurants have made some changes to the dishes.

    "One {#blank#}4{#/blank#}is the meat," said Yin Hang, who is studying at the University of Wollongong in Australia.

    "We like to eat meat with the bone in, {#blank#}5{#/blank#}people here don't. So Chinese restaurants provide big pieces of meat {#blank#}6{#/blank#}bones, even for fish. "

Some Chinese brands are also becoming more {#blank#}7{#/blank#}.In many cities in Europe, stores sell TCL televisions, Haier fridges and Lenovo computers, reported Reuters.

    In the past, most Western people thought Chinese {#blank#}8{#/blank#}were cheap and unreliable. But things have changed {#blank#}9{#/blank#}."Made in China" has become cool and more people trust Chinese brands.

    For example, Huawei, one of China's major smartphone makers, overtook Apple in global smartphone sales for {#blank#}10{#/blank#}first time in June and July, behind only Samsung, noted consulting(咨询)firm Counterpoint Research.