Youmay see some unusual fruit and vegetables when you visit a large supermarket,-组卷网

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You may see some unusual fruit and vegetables when you visit a large supermarket, such as square watermelons, blue potatoes and purple cauliflower (菜花). So, why are they so unusual?

Some plants are unusual because they are grown in special ways. For example, square watermelons grow inside square glass cases. The square watermelon result is a specially shaped melon that is easy to cut and store in the fridge. People also grow heart-shaped tomatoes in the similar way. You can do this as well with your own backyard watermelons and tomatoes!

Some plants are designed when they are seeds (种子). Hybrids (杂交) are new plants created by scientists. They are a combination (结合) of different “parent” plants that form a whole new kind of plant. For example, a fruit called the pluot is a cross between a plum and an apricot. It looks like a plum, but it is sweeter than most plums. Crossbreeding (杂交繁育) is when two plants of the same kind are combined to create a better plant. A farmer might crossbreed a small, sweet tomato and a large but tasteless tomato in order to create a large, sweet tomato. It will provide delicious slices that fit better on sandwiches. Farmers must choose the plants with qualities that people want and then grow more of these plants.

The next time you go to the supermarket and see a square watermelon or pluot, remember how much work went into producing it.

【小题1】What do we know about square watermelons from the text?

A．They can be cut and stored easily.

B．Their seeds are specially designed.

C．They are a whole new kind of plant.

D．They’re bigger than other watermelons.

【小题2】Which is the fruit from a hybrid plant from the text?

A．The plum.

B．The apricot.

C．The pluot.

D．The heart-shaped tomato.

【小题3】What does the underlined word “It” in Paragraph 3 refer to?