UNIT 03 Stem

　　A stem is a part of a plant. It helps to hold up the flower. It also moves water from roots to leaves. What is the tallest tree with the tallest stem in the world? The tallest tree is in the USA. It is 367 feet 6 inches. It is over 1,000 years old. It is much higher than the Statue of Liberty。

　　Select True or False

　　❶ A stem holds up an animal. (T/F)

　　❷ The tallest tree is in Canada. (T/F)

　　❸ A stem moves water from roots to leaves. (T/F)

　　More to know

　　much

　　much是表示“多；大量”等意思的形容词。它作为前缀用在不可

　　数名词前面，表示数量。

　　··I drink too much milk。

　　我喝了太多的牛奶。

　　··Isn’t this too much food?

　　食物太多了吧？

　　READING COMPREHENSION

　　*Read and circle the best answer。

　　❶ Where is the tallest stem in the world?

　　a. in the USA b. in Canada c. in Brazil

　　❷ What does a stem do for a plant?

　　a. moves insects

　　b. keeps a plant warm

　　c. holds up the flower

　　*Complete the sentence with the right answer。

　　❸ The stem moves water from roots to 。

　　a. ground b. leaves c. soil

　　❹ A stem is a part of a 。

　　a. duck b. plant c. human

　　DESCRIBE THE PICTURE

　　*Circle the correct sentence。

　　❶ The tree is shorter than the Statueof Liberty。

　　❷ The tree is lighter than the Statueof Liberty。

　　❸ The tree is taller than the Statueof Liberty。