The "green" car has become popular in recent years. A green car is an environment friendly car. Today, most cars are powered (驱动) by petrol (汽油). They make our life easier. But cars have also made problems for the environment.

    There are a few new types of cars that use no petrol or a little petrol.

    Electric cars：This kind of car uses a battery (电池) for power. When you're not driving it, just plug it in like a mobile phone to power up the battery. They don't make exhaust (排放物). But car makers still can't make a battery that lasts for more than a few hours. That's why electric cars aren't very popular.

    Fuel cell cars (燃料电池车) : Fuel cell cars use hydrogen (氢) and oxygen (氧) to make power. The only exhaust they produce is clean water. But fuel cell cars are still much too expensive to make.

    Solar cars : This kind of car has large panels (板) on the top that take power from the sunshine. The car holds that power in a battery. Solar cars might be the cleanest of all. But no one uses them, because solar panels can't get enough power from the sun to make a car go for a long time. Also, they are very slow.

    Hybrid cars（油电混合车）： This kind of car is the most exciting kind, because it is very clean and not too expensive. The hybrid car is very smart: Half the time, it uses petrol, and half the time it uses a battery. So, when the petrol engine is working, it puts some of its power back into the battery. It uses much less petrol than other cars. It also makes less pollution for the environment.

    The speed and convenience of modern travel makes the faraway countries be reached quickly and easily now.

    Even though they now seem closer, they may still be different from your home country. So it is important to change your behavior so that you can get on well with local people. Following are some basic rules that will make communication easier, and your trip more enjoyable.

    First, never raise your voice in order to make yourself understood. If you don't know the word for something in the local language, try to draw a picture or point to the thing. Before you travel, you can also learn some basic words or phrases of the local language, such as words for please, thank you, and may I, as well as basic greetings

    Second, consider the culture of the country you plan to visit and read about the rules related to clothing. You ca bring some clothes such as shirts or T-shirts that cover your shoulders, and long trousers.

    Avoid topics（话题） that you think may be sensitive. If a topic is sensitive in your own culture, it will likely be the same in other cultures. Feel free to show interest in the history and customs of the place that you are visiting, but don't ask questions about why things are done a certain way, because you may make the local people unhappy.

    Keep in mind that in many cultures, showing affection in public isn't allowed. Kissing on the street or in public should be avoided. If you are unsure of how to behave, watch the local people and copy them.

    Finally, if you wish to take a gift, do some research. The idea of the perfect gift is different greatly from country to country, and one of the easiest ways to make someone angry is to give the wrong gift.

⑴题完成句子; ⑵⑶题简略回答问题; ⑷题为找出并写下全文的主题句; ⑸将文中划线句子译成汉语｡

    The Silk Road is known all over the world.{#blank#}1{#/blank#}It went along the north of China, India, and Persia and ended up in Eastern Europe near today's Turkey and the Mediterranean Sea.

    It was called the Silk Road because one of the major products traded was silk cloth from China. Chinese silk was soft and of high quality. So people throughout Asia and Europe loved it very much.{#blank#}2{#/blank#}Even the Romans called China the "land of silk".

    Besides silk, the Chinese also sold tea, salt, sugar, porcelain(瓷器)and spices(香料). Most of the goods were expensive. This was because it was a long trip and trades didn't have a lot of room for goods. They bought goods like cotton, ivory, wool, gold and silver.

    Traders traveled in large caravans (商队). They would have many guards with them.{#blank#}3{#/blank#}Most of the road was through dry land, so camels were popular animals for transport.

    Although there was some trade between China and the rest of the world for some time, the silk trade developed quickly during the Han Dynasty which ruled from 206 B. C. to 220 A.D.{#blank#}4{#/blank#}During this time, Chinese traders traveled safely. Also, traders had a higher social position.

    {#blank#}5{#/blank#}It not only helped develop trade between different countries, but also helped make ideas, cultures and inventions spread across the world.

    Think about this question: what would it be like if there was no other way to get around and we could only use our feet? {#blank#}1{#/blank#} Also, we would spend a lot of time on the way before we got somewhere. So we really need to thank all those modes of transportation (交通方式(.

    {#blank#}2{#/blank#} The earliest boats were canoes(独木舟). Later there were sailing boats(帆船), but they could only be used in one direction. {#blank#}3{#/blank#} 

In the 19^th century, some modes of transportation that we know today came out, such as the bike, the train and the subway. {#blank#}4{#/blank#} As it got easier to travel, people wanted to get to places faster. In the early 20^th century, the first plane in the world came out. By the 1970s, many families in the UK had a car.

    {#blank#}5{#/blank#} They all make our traveling easier and faster and help us see this world better.