It is named a kind of wooden Eiffel Tower, because of the fact that there was a large wooden platform far out in the lake on which stood an improbably high diving board. It was, I'm sure, the county's tallest wooden structure and no one had ever been known to jump from it.

    So it was quite a shock when our teacher, Mr. David, announced that he would dive off the high board that very afternoon.

    Word of his questionable plan was already spreading through town as Mr. David swam out to the platform. He was just a tiny, stick figure when he got there but even from such a distance the high board seemed almost to touch the clouds. Once at the top, he paced the enormously long board, then took some deep breaths and finally stood at edge. He was going to do it.

    Several hundred people had gathered at the shore to watch. Mr. David stood for quite a long time, then he raised his arms, took one massive bounce and launched himself into a perfect dive. It was beautiful. He fell with perfect style for what seemed minutes. The crowd fell silent. The only sound to be heard was the faint whistle of his body tearing through the air toward the water far, far below.

    But about three quarters of the way down he seemed to have second thoughts and began suddenly to panic, waving his arms and legs like someone having a bad dream. When he was perhaps thirty feet above the water, he gave up on waving and spread his arms and legs wide, apparently hoping that it would somehow show his fall.

    It didn't.

    He hit the water at over six hundred miles an hour. The impact was so loud that it made birds fly out of their trees three miles away. I don't think he entered the water at all. He just bounced off it, about fifteen feet back into the air. After that, he lay still on the surface, spinning like an autumn leaf.

    He was brought to shore by two passing fishermen in a rowboat and placed on an old blanket where he spent the rest of the afternoon. Occasionally he accepted small sips of water, but otherwise was too shock to speak. From head to toe, he was covered with deep red bruises.

……

    It was the best day of my life.

Harry's is to make a list of all the pros and cons.  

The new railway is still .

I've tried very hard to improve my English. But by no means with my progress.

    Climate change has been blamed for killer hurricanes, sea level rise, and drought, but a new report suggests the effects of climate change might hit the world's coffee supply. Up to 70 percent of the world's coffee supply could be threatened over the next 66 years, according to a new study by researchers at England's Royal Botanic Gardens.

    Nearly 100 percent of the world's Arabica coffee growing regions could become unsuitable for the plant by 2080, according to the study. Beans from Arabica coffee plants account for about 70 percent of the world's coffee, but the plant also has to be grown under strict weather conditions: they grow well at temperatures between 64 and 70 degrees Celsius, and are highly influenced by frost or temperatures higher than 73 degrees Celsius.

    With temperatures estimated to increase by between 1. 8 and 4 degrees Celsius by the end of the century, the fragile plant might become increasingly expensive and difficult to grow, especially in places such as Ethiopia and Kenya. In that worst case, nearly all of the world's native Arabica coffee would die out. Under more conservative(保守的)estimates, about 65 percent of the regions used to grow the coffee would become unsuitable for it. The evidence from coffee farmers and coffee growing regions around the world is that they are already suffering from the influences of increased warming.

    Some farmers would likely be able to move their operations to other areas or would be able to overcome climate change with artificial cooling techniques, but wild Arabica is generally considered to be much more suitable for making high-quality coffee.

    If Arabica becomes impossible to raise in its native areas, it could do serious damage to the economies of the mainly third-world countries in which it grows. Coffee is the world's most popular drink and is the second most-traded product in the world, behind oil.

, penicillin is now in regular production.

—The (灌溉) this year.

—It is (多变的).