1. (2021·禹州模拟) 根据材料内容选择最佳答案。

    There are a number of animals that glow in some way-including several kinds of insects and fish. Fireflies are a well-known example of glowing. But plants don't glow. Now, scientists are working to change that.

In the past, scientists have created glowing plants by adding DNA from glowing bacteria. But the glowing effect was weak, perhaps because of the huge differences between simple bacteria and plants. The plants are much more complicated. Scientists have also created glowing plants by adding Lucifer in to the plants. But the glow didn't last long and only worked as long as the Lucifer in lasted.

Now, researchers at a Russian company called Planta, working with scientists from the United Kingdom and Austria have come up with a new method of creating glowing plants which last longer. By adding certain parts of the DNA from glowing mushrooms to ordinary plants, the scientists are able to create plants that can glow as long as they are alive.

The glow came from all parts of the plants—leaves, stems, roots, and flowers. The scientists reported that the greenish light was about 10 times brighter than in earlier glowing plants. The glow was strong enough to be easily recorded with an ordinary camera, but it didn't affect the health of the plants.

The researchers believe that glowing plants could help scientists learn more about the way plants work. They point out that the glow seems to change, depending upon what is happening inside the plants.

But the researchers don't think the plants will just be used for science. They think many people may want glowing plants for their beauty. The scientists have shown that several common flowers, such as periwinkles, petunias, and roses can be made to glow.

Planta is working with a company called Light Bio to develop glowing plants for sale.

本题素材选自https :/ / newsforkids. net

1. （1） Which of the following, can't glow by themselves in our daily life?

   A . Some insects. B . Some fish. C . Fireflies. D . Plants.
3. （2） How did the scientists from UK and Austria make the glowing effect longer?

   A . By adding bacteria to the plants. B . By adding Lucifer in to the plants. C . By adding DNA from glowing bacteria to the plants. D . By adding certain parts of the DNA from glowing mushrooms to ordinary plants.
5. （3） What does the underlined word "complicated" most probably mean in Chinese?

   A . 复杂的 B . 健康的 C . 彩色的 D . 新颖的
7. （4） What are the advantages of the new way to create glowing plants?

   a. It didn't affect the health of the plants.

   b. The light of glowing plants is colorful.

   c. The plants can glow as long as they are alive.

   d. The glow was strong enough to be easily recorded with an ordinary camera.

   A . abc B . abd C . acd D . bcd
9. （5） What can we infer about the glowing plants according to the text?

   A . The glowing plants will be less beautiful than we think. B . People can buy more kinds of beautiful glowing plants in the future. C . The glow changes depending on what is happening outside the plants. D . Planta will work with a company called Light Bio to buy glowing plants.