UNIT 01 Sand

　　If you look around you, you can find sand very easily. Sand comes from rocks. Each grain of sand is less than 2 millimeters in diameter. Some smaller sand feels like flour. There are many different colors of sand. Some sand is white, and it can be found in tropical areas. Some sand is black, and it can be found in volcanic areas. Also, some sand is green and some sand is yellow。

　　Select True or False

　　❶ Sand is hard to find. (T/F)

　　❷ Sand comes from rocks. (T/F)

　　❸ Sand is only black. (T/F)

　　More to know

　　from

　　from 是“来自……”的意思。主要表示出身或起点。

　　··Logs come from trees。

　　木材来自树木。

　　··She comes from Korea。

　　她来自韩国。

　　READING COMPREHENSION

　　*Read and circle the best answer。

　　❶ What is the diameter of a piece of sand?

　　a. less than 0.2 millimeters

　　b. less than 1 millimeter

　　c. less than 2 millimeters

　　❷ Where can you find black color sand?

　　a. tropical areas

　　b. volcanic areas

　　c. cold areas

　　*Complete the sentence with the right answer。

　　❸ Some smaller sand feels like 。

　　a. tree b. flour c. water

　　❹ Some sand is , and it can be found in tropical areas。

　　a. white b. green c. yellow

　　DESCRIBE THE PICTURE

　　*Unscramble the words in the box。

　　Volcanic is sand black area

　　火山地带的沙子是黑色的。