1. (2022高一上·哈尔滨月考) 阅读理解

No matter where you go in the world, you will notice something unusual about the trees —their trunks (树干) are painted white.

People whitewash trees for a variety of reasons, depending on the area they live in. In Mexico, the purpose of whitewashing is to protect the tree and fight against a specific type of ant. Greece is another country where you can find trees painted white. According to tradition, during Easter, everything gets whitewashed. Make sure to plan your next trip to Greece if you won't want to miss this interesting and unique tradition. Generally speaking, the main purpose of whitewashing is to protect the tree from heat and insects. And few are as effective and accessible as whitewashing. When the tree is exposed to too much sun in the daytime, the tree cells become more active; however, the roots as well as the other unexposed areas of the tree remain inactive. If the water that the tree needs cannot be provided from the roots, the tree will have a dry surface. Once you whitewash them, the surfaces of young trees won't get dry easily. If the tree is suffering from being sunburned, the wound can also allow the insects to enter the inside of the tree. Moreover, relative diseases can influence how the tree grows. Whitewash prevents any access to the inside of the tree.

Pure white paint works efficiently (高效地) when it comes to reflecting both heat and sunlight away from the tree. White paint allows the tree to spend more time taking in carbon dioxide (CO₂). The more carbon dioxide the trees take in, the more energy they create. Gardeners whitewash trees not only for protecting their trees but also helping produce more fruit.

Painting the trees white won't stop traffic accidents, but it can make them less frequent, because drivers can see the trees much more clearly, even during the night.

1. （1） Why do people in Greece paint the trees white?

   A . To see the trees more clearly. B . To protect the trees from ants. C . To make their cities beautiful. D . To celebrate a traditional festival.
3. （2） How can whitewashing protect trees from insects?

   A . By influencing the growth of trees. B . By helping supply water to trees. C . By preventing access into trees. D . By drying the surface of trees.
5. （3） What can be inferred from the last two paragraphs?

   A . Whitewashing trees may increase fruit production. B . Painting trees white helps stop traffic accidents. C . White paint provides more energy for trees. D . White paint helps trees create more CO2.
7. （4） Where is the text probably taken from?

   A . A health report. B . A travel handbook. C . A scientific magazine. D . A product advertisement.