In 1876, Alexander Graham Bell made a great invention—the telephone. For the first time in history, people could talk to someone far away just like they were in the same room. But today, phones can do much more than just making calls!

The story of mobile phones began with two-way radios. These early devices (设备) had a big problem—they only worked when people were close to each other. In the 1940s, smart scientists found a way. They built tall radio towers across the country to pass signals (信号) easily.

Everything changed in 1973 when Dr. Martin Cooper made the first real mobile phone call. During the 1980s, mobile phones became smaller but were still very expensive. Only rich business people could afford them, and the phones looked like big plastic bricks.

The 1990s brought another big change. Phones became cheaper and smaller, fitting easily in pockets. Soon, almost everyone had one. Text messaging became popular. People started writing short messages instead of making phone calls. Meeting time became more flexible (灵活的) because you could just text “I’ll be 15 minutes late.”

Now we have smartphones—like powerful mini-computers in our pockets. We use them to take photos, watch videos, play games, and even help with housework! Messaging apps let us send videos and long messages easily. While phones help us stay connected, some people worry we spend too much time on them.

Looking back, it’s amazing how phones have changed. From Bell’s simple telephone to today’s smartphones, this has truly changed our lives. What will phones be able to do next? Only time will tell!

1.1.When did Alexander Graham Bell invent the telephone?

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解析：选In 1876.。文章首句直接给出了答案：“In 1876, Alexander Graham Bell made a great invention—the telephone.”

2.2.Why did scientists build tall radio towers in the 1940s?

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解析：选To pass signals easily.。第二段提到早期的双向无线电只能在近距离工作，为了解决这个问题（“had a big problem”），科学家们在20世纪40年代建造高塔，目的是“to pass signals easily”。

3.3.Who made the first real mobile phone call?

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解析：选Dr. Martin Cooper.。第三段首句明确指出：“Everything changed in 1973 when Dr. Martin Cooper made the first real mobile phone call.”

4.4.How can smartphones help us in our life? (请给出两个例子)

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解析：选They can help us take photos, watch videos, play games, help with housework, stay connected easily, etc. (任意两点即可)。答案出自第五段。该段列举了智能手机的多种功能，如“take photos, watch videos, play games, and even help with housework”以及通过社交应用保持联系（“help us stay connected”）。

5.5.What do you think the future phones might be like? (请自拟一句话作答)

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解析：选(开放答案，合理即可) 示例：They might be foldable screens or even wearable devices like glasses. / They might be controlled directly by our thoughts.。此题要求基于文章内容（电话的发展历程：从固定电话到移动电话到智能手机）进行合理想象和预测。答案应体现对未来科技的合理推测。