UNIT 08 Snow

　　Snow comes from clouds, and it is made of snowflakes. As snowflakes grow bigger and heavier in the cloud, they fall toward the ground. All snowflakes are six-sided ice crystals. They all look different. In order for children to have snowball fights, the air temperature has to be not too cold. If the air is too cold, the snow will not stick together very well。

　　Select True or False

　　❶ Snow is made of snowflakes. (T/F)

　　❷ Snowflakes are four-sided ice crystals. (T/F)

　　❸ Snow doesn’t stick together. (T/F)

　　More to know

　　made of

　　是“由……制成”的意思。表达“某物由某种材料制作而成”时，

　　经常用这个词组。

　　··The house is made of wood。

　　这间屋子是用木头建成的。

　　··The snowman is made of snow。

　　雪人是用雪堆成的。

　　READING COMPREHENSION

　　*Read and circle the best answer。

　　❶ What is snow made of?

　　a. snowflakes b. clouds c. crystals

　　❷ What happens to snowflakes when they’re in the clouds?

　　a. They grow smaller and lighter。

　　b. They grow bigger and heavier。

　　c. They grow longer and larger。

　　*Complete the sentence with the right answer。

　　❸ All snowflakes are ice crystals。

　　a. five-sided b. six-sided c. seven-sided

　　❹ To have snowball fights, the air temperature has to be not

　　too 。

　　a. cold b. high c. hot

　　DESCRIBE THE PICTURE

　　*Circle the correct sentence。

　　❶ All snowflakes look the same.

　　❷ All snowflakes look different。

　　❸ All snowflakes look big。