Ⅰ.听句子, 选择与所听句子相符合的图片(5分)
1.People often use it to send emails.
2.I think the light bulb is the most helpful.
3.The flying disk is an invention which was invented by college students.
4.I got up late because my alarm clock didn't work.
5.There are many great inventions that changed the way we live.