A Listen and circle（听录音，圈出与录音内容相符的图片）
1. A. B.
2. A. B.
3. A. B.
4. A. B.

1. A 2. B 3. B 4. A

B Think and say（想一想，说一说）

Thirty years ago, Miss Liu wrote letters to her family. These days, she makes video calls with her family on the mobile phone.

【分析】首先观察时间提示和图片内容：Thirty years ago（三十年前）对应图中的明信片，需用一般过去时表达；These days（如今）对应图中的手机视频通话，需用一般现在时表达。再结合参考句型，匹配对应的动词短语组织句子，注意时态的正确使用。
【解析】1. 根据时间确定时态：Thirty years ago是一般过去时，动词用过去式，图中是明信片，对应短语“write letters”，过去式为“wrote letters”；2. These days是一般现在时，主语Miss Liu是第三人称单数，动词用第三人称单数形式，图中是手机视频，对应短语“make video calls”，三单形式为“makes video calls”；3. 套用参考句型，完整表达句子。
【答案】Thirty years ago, Miss Liu wrote letters to her family. These days, she makes video calls with her family on the mobile phone.
【知识点】一般过去时、一般现在时、动词短语
【点评】本题结合时间变化与图片信息，考查基础时态的运用，要求学生准确识别图片内容并匹配对应时态的表达，是英语学习中常见的基础表达题。
【难度系数】0.4

C Read and write（根据课文内容补全短文，每空一词）
I'm Wang Bing. I asked my family about the changes in their (1) .
In the past, my grandpa (2) letters to his family and friends. Now he (3) with them on the internet. My grandma and grandpa (4) a lot of time on the road then. Now high-speed trains (5) very fast. My mum (6) in an office in the past. Now she sometimes works from home and (7) online meetings. Twenty years ago, my dad (8) in cash. Now he pays on his smartphone. What great changes!

1. lives 2. wrote 3. chats
4. spent 5. travel 6. worked
7. has 8. paid

【分析】本题需结合短文语境及时间状语判断时态，再填写合适的词汇。首先通读短文明确主题为生活的变化，再根据各空的时间标志（如in the past、now、then等）确定时态，最后匹配对应词汇的正确形式。
【解析】1. 结合语境此处表示“生活”，填lives；2. 由时间状语in the past可知用一般过去时，“写信”的过去式为wrote；3. 由时间状语now可知用一般现在时，主语he是第三人称单数，“聊天”用chats；4. 由时间状语then可知用一般过去时，“花费时间”的过去式为spent；5. 此处描述高铁的现状，主语high-speed trains是复数，填travel；6. 由时间状语in the past可知用一般过去时，“工作”的过去式为worked；7. 由时间状语now可知用一般现在时，主语she是第三人称单数，“开（会议）”用has；8. 由时间状语twenty years ago可知用一般过去时，“支付”的过去式为paid。
【答案】1. lives 2. wrote 3. chats 4. spent 5. travel 6. worked 7. has 8. paid
【知识点】一般过去时、一般现在时、词汇运用
【点评】本题围绕生活变化的主题，考查时态判断与词汇运用，需结合时间标志确定时态，难度适中，适合基础阶段学生练习。
【难度系数】0.6