更多"Keep Our Seas Clean A. By the ye"的相关试题:
[填空题]
Keep Our Seas Clean
A. By the year 2050 it is estimated that the world’s population could have increased to around 12 billion. Of these, some 60 percent will live within 60 km of the sea. The agricultural and industrial activities required to support this population will increase the already significant pressures on fertile coastal areas. Death and disease caused by polluted coastal waters costs the global economy US $12.8 billion a year. Plastic waste kills up to 1 million sea birds, 100,000 sea mammals and countless fish each year.
B. One significant impact of human activity is marine pollution. The most visible and familiar is oil pollution caused by tanker accidents and tank washing at sea, and in addition to the gross visible short-term impacts, severe long-term problems can also result. In the case of the Exxon Valdez which ran onto a shore in Alaska in 1989, biological impacts from the oil spill can still be identified 15
[单项选择]We must keep our ______ clean.
A. tooth
B. teeth
C. tooths
[单项选择]Last year our country hosted the Olympic Games. It is held (41) .Many players (42) , all over the world take part in it. The old Olympic Games began around the year 776BC in Greece and the modern games came from the (43) ones.
The Olympic Games stopped for a long time. But people didn’t (44) them. The first Olympic Games in modern times happened in 1896. They were held in Greece—the games were born in this (45) . In the 1896 games, there were 311 players from just thirteen countries. After that, (46) countries took part in the games.
One of the great competitions (47) not for a medal. It’s the competition among countries to hold the game. To hold the Olympic Games is a great prize (48) a country. Last year, Beijing (49) the 29th Summer Olympic Games. We all felt (50) our great country.
A. from B. in C. at
