阅读理解。
If you live in a place like Britain, you could not help thinking that the weather is random (随意的). This
is because the weather there seems to change daily if not hourly. In fact the weather is controlled (控制) by
systems which move around areas of the earth. In the UK the weather depends on depressions, often called
"lows", and anticyclones, also known as "highs". These systems start in the Atlantic Ocean, and make their
way across the British Isles from the west to the east. Highs bring sunny weather, while lows bring rain and
wind.
The weather systems in tropical climates are very different from those in mid and high latitudes (纬度).
Tropical storms develop from depressions, and often build into cyclones, violent (猛烈的) storms, great
hurricanes and torrential rain.
In modern times, human activity seems to be changing weather patterns. Gases or smoke produced by
heavy industry (工业) change the temperature of the earth's surface, and affect cloud formation (形成).
Some researchers say that factories in Europe and North America may have been one of the causes of the
droughts in Africa in the 1980s.
根据短文内容，判断下列句子正（T）误（F）。
( )1. The weather in Britain is very changeable.
( )2. Violent storms are common in mid and high latitudes.
( )3. Anticyclones bring fine weather.
( )4. The word torrential in Paragraph 2 means very heavy.
( )5. Climate changes as a rule and can't be affected by man.
