三、新素材 观察图片，选择正确的答案。

()1. We use in 1G.
A. B. C.
()2. "Sending messages" means "" in Chinese.
A. 发送信息 B. 发送图片 C. 发送视频
()3. We can on the phone in 3G.
A. listen to music B. watch films C. have classes
()4. We can pay money on the phone in .
A. 2G B. 3G C. 4G
()5. We can turn on the lights on the smartphone in the .
A. 2000s B. 2010s C. 2020s

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

四、阅读短文，完成表格。
The life of Nancy's family has changed a lot in the past years.
Six years ago, Nancy was five years old. She couldn't dance. Now, she can sing and dance well. She often dances on stage.
Twenty years ago, her parents were students. They wrote letters to their friends. They went to shops to buy things. Now, they have smart mobile phones. They can chat on the internet. They can also buy things on the mobile phones.
Thirty years ago, Nancy's grandma made clothes for the family at home. Nancy teaches her how to do shopping on the mobile phone. She learns quickly. Now she likes buying clothes on the mobile phone.
| | Nancy | Nancy's parents | Nancy's grandma |
| --- | --- | --- | --- |
| Then | six years ago: could not 1. | twenty years ago: wrote 2. to friends; bought things from shops | thirty years ago: made 3. at home |
| Now | can 4. and dance | chat on the internet; buy things on the smartphones | does 5. on the smartphone |

1. dance 2. letters 3. clothes 4. sing
5. shopping