|
"津雲"客戶端 |
|||
UNIT 09 Oxygen
Can you touch or feel oxygen in the air? Oxygen has very unique characteristics. You cannot see oxygen, because it doesn」t have a color. Also, oxygen does not melt in water. Oxygen doesn」t have a smell. However, it helps burn other things. Can you live without oxygen? Definitely not! We cannot live without oxygen even for more than a few minutes。
Select True or False
❶ People can see oxygen. (T/F)
❷ Oxygen has a smell. (T/F)
❸ People can not live without oxygen. (T/F)
More to know
within
within有『在……內』的意思。與表示地點、時間、距離的詞用在一起。
··We need to finish this work within a week。
我們要在一個星期內完成這項工作。
··Please call me back within 10 minutes。
請10分鍾內給我回電話吧。
READING COMPREHENSION
*Read and circle the best answer。
❶ What is a unique characteristic of oxygen?
a. It has no smell。
b. It can be seen。
c. It melts in water。
❷ What can oxygen do?
a. It can buy things。
b. It can help burn things。
c. It can change things。
*Complete the sentence with the right answer。
❸ You cannot see oxygen, because it doesn」t have a 。
a. color b. smell c. taste
❹ People cannot live without even for more than a few minutes。
a. water b. oxygen c. food
DESCRIBE THE PICTURE
*Unscramble the words in the box。
The diver the water under is
潛水員在水下潛水。