| People often speak of fire as though it
were a living creature--It grows, dances, needs oxygen, feeds on whatever it can
find, and then dies. And when a forest fire rages out of control, threatening
human lives and homes, it must be fought like a "wild animal." The fight is
often desperate, since firefighters’ best efforts may be dwarfed by the fury of
a large fire. But the fire’s own traits can be used against it. The heated air above a fire rises in a pillar of smoke and burnt gases, pulling fresh air in from the sides to replace it. Firefighters use this fact when they "fight fire with fire." They start a fire well in front of the one which they are fighting. Instead of traveling on in front of the huge fire, the smaller fire is pulled back toward it by the updrafts of the larger blaze. As it travels back to meet the large A. how fires start B. damage caused by fire C. the fascination of fire D. fighting forest fires [单项选择]It can often take more time and effort to establish a firm in a foreign market than in the domestic one.
A. 在国外市场建立一家公司比在国内市场建立一家公司往往要花费更多的时间和努力。 B. 对于一家公司来说，开发国外市场所花费的时间和努力比开发国内市场要多。 C. 只要能够多花点时间和努力，就可以像在国内市场建立公司一样在国外市场建立公司。 D. 在国外市场经营一家公司比在国内市场经营一家公司往往要花费更多的时间和努力。 [简答题]
TOPIC [单项选择]Why did people often telephone her while they wanted the cinema [A] Because the two telephone numbers are the same. [B] Because they used the same telephone. [C] Because the two telephone numbers look almost the same.
[填空题]People often play and have a rest there.
[填空题]Owing to some life experiences, people often lack ______ in many workplaces.
[单项选择]According to the speaker, what do people often think about astronomers
A. They spend most of their time looking through telescopes. B. They are constantly analyzing data. C. They often live near observatories. D. They devote a lot of time to theoretical problems. [填空题]What do Chinese people often do before the New Year
[单项选择]What kinds of people often give drugs to their children Where in the world do people take drug before going to work The answers are simple—ordinary people, just about (26) .
And the drug (27) question is caffeine. Scientists estimate that over 70% of the world’s population takes caffeine daily. (28) drink it in tea and coffee. Children drink in tin Coca Cola and (29) soft drinks. It is also found in chocolate. (30) , most people in the most places at any time are under the (31) of the drug. There have been many scientific investigations (32) the exact effects of caffeine. Most people agree that it (33) the nervous system and helps the body make efficient use of energy. This is why many people (34) Asia drink tea with food and why westerners often end their meals (35) a cup of coffee. Because the effect of caffeine is so (36) , there have been (37) attempt A. gave B. fixed C. speeded D. build 我来回答: 提交
|
