阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
A
It’s hardly surprising that weather is a favorite topic for so many people around the world—it affects where we choose to love, what we wear, our moods, and perhaps even our national characteristics. Studies have shown the changeable weather can make it difficult to concentrate, cloudy skies slow sown reaction, and high humidity with hot, dry winds makes many people bad-tempered.
If you live in a place like Britain, where the weather seems to change daily if not hourly, you could be forgiven for thinking that the weather is random. In fact, the weather is controlled by systems which move around areas of the globe. In the UK the weather depends on depressions（低气压）, often called lows, and anticyclones
