The earth is our home. We must take care of it. Life today is easier than it was hundreds of years ago, but it has brought some new problems. {#blank#}1{#/blank#}. We can see it, smell it, drink it and even hear it. Man has polluted the earth. The more people, the more pollution. {#blank#}2{#/blank#}, the problem was not so serious. When the land was used up, the river was not clean in a place, man went to another place. Now man is slowly polluting the whole world. {#blank#}3{#/blank#}, It's bad for living things in the world. Many countries don't let burn something bad for air in houses and factories in the city. Pollution by SO₂ is now the most dangerous kind of air pollution. It's caused by heavy traffic. {#blank#}4{#/blank#}. When you are riding, there is no pollution. But even in developed countries, most people don't go to work by bike. It's not because bikes are expensive or people are tired if they ride to work. It's because the number of cars on the roads becomes larger. So more people put away their bikes and go to work by cars, then things getting worse and worse. {#blank#}5{#/blank#} and make it so difficult and expensive for drivers to take their cars into the city that they will go back to use their bikes.

A. For industry was not well-developed.

B. We should have special roads only for bikes

C. Air pollution is still the most serious

D. Because there were not so many people many years ago

E. People say it's best to ride bikes

F. One of the biggest problems is pollution

注意：每个空格只填1个单词。

    More and more British people are deciding not to eat meat and animal products. As a result, vegetarianism(素食主义) is increasing in the UK. According to the Vegetarian Society, 2000 people are giving up meat and “going veggie(素食)” in Britain every week. There's even a National Vegetarian Week organized every year to encourage people to try a meat-free lifestyle.

Vegetarians and vegans

    Vegetarians are people who don't eat or use any animal products. They are becoming more and more common in the UK culture. A recent survey showed that 3 million people (5.7 percent of the country's population) were vegetarians.

A healthy diet

    So why are British people cutting out meat? Many are unhappy about the poor treatment of animals and the effects of meat and fish production on the environment. Worries about food safety, for example mad cow disease, also play a part. Others choose to change their eating habits to get healthier. According to the Vegetarian Society, a meat-free diet could help prevent the certain cancers, as well as heart disease and high blood pressure(压力).

Organic(有机的) farming

    Another rising trend appears in the UK's food production. They want their food to be organically produced. Organic farmers use very few or no chemicals. Organic meat is produced without the use of drugs. Organically farmed animals also have more living space and more good food. According to the Soil Association, three out of every four UK families now buy some type of organic food.

    Jason Queally is one of the fastest men in the world on a bicycle.

Every year, an important human-powered bicycle race is held in Nevada, the USA. The speed of the bike is measured for only 200 meters, but players take more than a kilometer to get their bikes going fast. Jason Queally's fastest speed for the 200-meterrase was 103.5 kilometers an hour.

    At this year's race, Jason failed to reach the finishing line. He was speeding along about seventy kilometers an hour when he began to lose control of his bike. When he tried to slow down, it began to smoke. Soon the inside of his bike was filled with smoke. He couldn't see, and he couldn't breathe. At seventy kilometers an hour, a crash could be very serious. Jason was frightened, but he managed to stop the bike safely. He would repair his bicycle and try again another time to be the world's fastest man on a bike. Better luck next time, Jason.