九上 Unit 2 培优训练 一、信息还原 In Chinese culture, red is an auspicious (吉利的) as well as a popular color. It stands for luck, happiness, joy and many other good things. 1. Why In ancient times, red was the symbol of power. Not everyone could write with red pens—only emperors. 2. The red ink that emperors used was made of cinnabar (朱砂). So their replies were known as zhupi (朱批). 3. In ancient China, the criminals who were sentenced (判刑) to death signed their names with red pens. The records of criminals’ names were all written in red words. Names on the tombstones were red as well. 4. Since red words carry bad meanings, people don’t write letters with red pens. If you write to friends or family members with red pens, it means you want to break up with them. 5. Teachers mark students’ homework with red pens. So do editors (编辑) who need to correct mistakes in newspapers and magazines. But writing names or letters with red pens is still a bad idea to many people. 二、阅读理解 ①The natural world is colorful with humans, plants and animals showing different colors. Human skin can be many different colors and it changes with the sun, our feelings, or our health. This is because of pigments (色素), which reflect light and make what the eye sees as colors. So, when we feel excited or angry, our heart sends more blood to the face and the pigments in the skin become red. ② Plants also have pigments. Colors plays an important role in their life. The bright colors of flowers catch the attention of insects, which then carry their pollen (花粉) from one flower to another. Bees can see colors we cannot, and they follow these to the inside of the flower. Without bees visiting flowers in this way, many plants would die out. ③ Animals also use colors for their own need. They protect themselves with different colors in order not to be seen by predators (捕食者).The snowshoe hare, for example, a type of wild rabbit, changes colors with seasons for this reason. During summer it is a brown color, and in winter it is white so that it can hide in the snow. However, some animals use the color as a warning to frighten predators away. Bright colors such as yellow and red are often used in this way. ④ So, we can see that there may be many different reasons and uses for colors in the natural world. Some uses of colors in nature remain unknown, but one thing is for sure, colors not only make our planet beautiful, but they are also necessary for our planet to live on. ( )1.What helps plants to attract insects A.Leaves B.Colors C.Fruits D.Pollen ( )2.Why does the writer talk about the snowshoe hare in Paragraph 3 A.To show animals can use colors to protect themselves. B.To explain how seasons have a great influence on animals. C.To show animals use colors as a warning to keep predators away. D.To explain why some animals use yellow and red to make themselves attractive. ( )3.Which of the following shows the structure of the text ( )4.Where can you find this ... ...
~~ 您好，已阅读到文档的结尾了 ~~
