三、任务菜单:请从以下两项任务中任选一项完成。
任务一:设计一款“未来生活助手”。
结合本单元所学,让学生发挥想象,设计一个能帮助人们生活的“未来小工具”(如智能书包、会说话的镜子、自动做饭机等),画出设计图,并用英语标注其功能和特点。
提示句型:This is a... It can help us to... ;
In the future, we will use it to...

设计图参考：绘制一个外形可爱的书包，在书包两侧画出小型螺旋桨，书包正面画出一块小小的智能显示屏。
标注英文内容：
This is a smart flying schoolbag.
It can help us to carry all our school things, and it can fly to take us to school fast.
In the future, we will use it to stay away from traffic jams, and it can also tell us useful safety tips on the way.

本题为创意实践类开放题，我们可以选择日常熟悉的物品作为原型发挥想象设计未来小工具，使用题目给出的提示句型来标注功能特点，选用五年级已学的简单词汇即可完成创作，这里以智能飞行书包作为设计示例。

任务二:“我是文化小使者”——介绍中国一种传统生活方式。
选择中国一种传统的生活方式(如用柴火做饭、写信交流、徒步上学等),用英语简单介绍其特点,并说明现在的生活方式有哪些不同。
提示词:cooking with fire, writing letters, walking to school...

Many years ago, people in China usually wrote letters to keep in touch with their family and friends far away. They wrote their daily stories and warm wishes on the paper, then sent the letters by post. It took several days to get the letter, but every letter was full of true feelings.
Now we seldom write letters. We can use mobile phones or the Internet to talk to others at any time. It is much faster and more convenient.

本题是开放性英语小写作题，我们可以选择提示词里难度较低的"writing letters（写信）"作为介绍的传统生活方式，内容贴合五年级英语词汇难度即可：先介绍过去人们写信交流的特点，再对比当下的通讯方式的不同，保证语句通顺、表意清楚。

四、根据短文内容，完成下列任务。
Amy and Tom are talking about the development of communication ways (通
信方式的发展). Let's read their chat and learn about it!
＜ 返回 9:23 对方正在输入……
Hi, Tom! Do you know how people sent messages a long time ago, before we had electricity(电)?
My grandpa told me people in old times used pigeons(鸽子) to send letters in Daqing and other places. But it took seven days or more for a pigeon to fly from one place to another.
Wow, that's really slow! What about later?
In the 19th century, an American invented(发明) the telegraph(电报).It was faster, but sending a telegraph cost a lot of money.
＜ 返回 9:23 对方正在输入……
When did people start talking to each other across long distances(远距离) easily?
In 1876, Bell invented the telephone.If you called your friend in Harbin from Daqing, he or she could answer you right away!
That's cool! What changed communication the most in the 20th century?
The internet! J.C.R.Licklider came up with(提出) the idea of it. Now we can chat with classmates in Daqing or other cities in real time(实时) on the computer.
任务：根据时间顺序，用数字1-4给下列图片排序

按照通信发展的时间先后，正确排序为：飞鸽传书（1）→电报（2）→电话（3）→互联网/电脑实时聊天（4）。

我们先从对话内容里梳理不同通信方式出现的先后顺序：
1. 最早：有电之前的古代，人们用鸽子来传递信件
2. 第二：19世纪，美国人发明了电报
3. 第三：1876年，贝尔发明了电话，人们可以轻松实现远距离通话
4. 第四：20世纪，互联网出现，人们可以通过电脑实时和其他城市的人聊天
按照时间先后排序规则：飞鸽传书的图片标1，电报的图片标2，电话的图片标3，电脑联网聊天的图片标4。