A rooftop garden is a garden on the roof (屋顶). Putting a garden on your roof is a nice way to turn an empty (空旷的) space into something pretty and relaxing.
Rooftop gardens are not a new idea. About 2,600 years ago, people in Ancient Mesopotamia planted rooftop gardens. There were similar gardens in Ancient Rome and Ancient Egypt. They had these gardens for a very important reason. The enemy army usually tried to destroy (摧毁) the city’s food, so the people in the city kept their gardens on top of their walls. That way they could go on growing food.
Today, rooftop gardens are still beneficial. If there are a lot of plants on a rooftop, they make the whole building cooler. As a result, people in the building use their air conditioning less, so they can use less electricity. One study said that if every roof in Tokyo had a garden, the city would save more than a million dollars a day on electricity.
Rooftop gardening is harder than normal gardening. Here are a few tips. First of all, build a fence (篱笆) around your garden if you don’t want the wind to blow plants off your roof! Also, remember that rooftop gardens get more sun. If you have a plant that shouldn’t get too much sun, remember to put it in cool places sometimes.
27. Ancient people had rooftop gardens to ________.
A.grow food | B.save money |
C.make the city more beautiful | D.live an interesting life |
28. The underlined word “beneficial” probably means “________” in Paragraph 3.
A.unbelievable | B.truthful | C.strange | D.helpful |
29. Which of the following is TRUE according to the passage?
A.A fence can stop the plants from blowing off. |
B.Rooftop gardens are not popular any more now. |
C.People in Ancient Tokyo planted rooftop gardens. |
D.You needn’t prepare a lot before you start a rooftop garden. |
30. What’s the best title (标题) for the passage?
A.Today’s Gardens | B.Rooftop Gardens | C.Ancient Gardens | D.Gardens in the City |