Ⅰ. Listen and choose（听录音，选出听到的内容）
() 1. A. /klɪk/ B. /dɪˈliːt/ C. /diːˈliːti/
() 2. A. laptop B. desktop C. password
() 3. A. reduce B. reuse C. recycle
() 4. A. pick up B. turn off C. throw away
() 5. A. as big as a room B. as light as a feather C. as small as a grain of salt

1. B 2. C 3. A 4. B 5. C

Ⅱ. Listen and choose（Xiaopu 正在编写一份 computer quiz，Shenshen 和他展开了讨论。听一听他们的对话，选出正确的答案）

() 1. What are Xiaopu and Shenshen talking about?
A. Using computers safely.
B. A greener life.
C. Useful inventions.
() 2. What is a safe password?
A. 20151220
B. G5j#k9Lm
C. Max12345
() 3. What happened when Shenshen spilled juice on the keyboard?
A. The computer broke.
B. The keyboard stopped working.
C. The mouse didn’t work.
() 4. If you spill juice on the keyboard, what should you do?
A. Turn off the computer.
B. Throw it away and buy a new one.
C. Clean and dry the keyboard.
() 5. What is the main purpose of Xiaopu’s quiz?
A. To learn about computer history.
B. To compare different computers.
C. To teach people how to use computers safely.

1. A 2. B 3. B 4. C 5. C