阅读理解。 Carrots are grown on farms and in small family gardens throughout the world. They are easy to grow and easy to harvest. They have a pleasing taste. When people think about carrots, a picture of a long, thin, orange-colored vegetable usually comes into their minds. But carrots come in many different sizes and shapes. And not all carrots are orange. Carrots should be grown in sandy soil that does not hold water for a long time. The soil also should have no rocks. Weather, soil, and age affect (影响) the way carrots taste. Experts say warm days, cool nights, and a right soil temperature are the best conditions (条件) for growing great tasting carrots. Most people do not know that carrots can be grown during the winter months. If the winter is not cold enough to freeze the ground, you can grow and harvest carrots the same way as you do during the summer months. If the ground does freeze in your part of the world, just cover your carrot garden with some plant leaves or straw. This will prevent the ground from freezing. Carrots need time to produce and develop their sugar. This gives them their taste. If they are harvested too early, they will not have enough sugar. However, carrots become wood-like and lose their sweetness if you wait too long to harvest them from the ground. The best way to decide if a carrot is ready to be harvested is by its color. Usually, the brighter the color, the better the taste. (from VOA) 1. Why are carrots widely grown and enjoyed by people all over the world? A. Because carrots come in many different sizes and shapes. B. Because carrots have a pleasing taste. C. Because carrots can be grown during the winter months. D. Because carrots have attractive colors. 2. When can carrots be grown? A. Only in summer B. Only in winter C. Both in summer and in winter D. It's not mentioned in the passage 3. If carrots are harvested too late, _______. A. they'll become wood-like and lose their sweetness. B. they will not have enough sugar. C. their colour will become brighter. D. they'll have a more pleasing taste. 4. Which statement is true according to the passage? A. Carrots grow better in rocks than in sandy soil. B. The way carrots taste has something to do with weather, soil and their ages. C. Carrots will be frozen in winter, even though they are covered by straw. D. Carrots are used to growing in water. 5. The best title of the passage is _______. A. Carrots B. How to Plant Carrots C. Different weather, Different Tastes D. How to Harvest Carrots