4. 分享会上,乐乐听到了根据已有的发明创造新发明的分享。
任务一:他的笔记有遗漏,请帮他将句子补充完整。
Early inventions make new inventions possible.
Mobile payment(移动支付)came ① (late) than mobile phones. GPS(全球定位系统)can show places ② (clearly) than paper maps. With the help of GPS, map navigation(导航)shows ③ (detailed)(详细)roads than old maps. Smart chips(智能芯片)came (early) than cleaning robots. Cleaning robots can do housework ⑤ (easily) than people. All these inventions make our life ⑥.
任务二:请根据文章内容,填入恰当的内容补全海报。

Problem
Invention
Solution
Old maps are difficult to use. + GPS → ①
Paying with cash(现金)is slow. + ② → Mobile payment
It takes a lot of time for people to do housework. + ③ → ④
5. 同学们在布置展板的过程中遇到了一些问题。请读一读他们的对话,从方框中选择正确的句子补全对话。(有多余选项)
A. Good idea. It has wheels. It's easy to push.
B. You can climb up.
C. Let's use a rope to pull it.
D. Can you help me ?

Oh no! This box is so heavy. I can't move it. 1.
Of course. Let's put it on the cart.
2.

I need to put the pictures on the board. But the board is too high.
I can get the ladder. 3.
Thanks! Now I can reach it.

任务一：① later ② more clearly ③ more detailed ④ earlier
⑤ more easily ⑥ better / easier ...
任务二：① Map navigation ② Mobile phones ③ Smart chips
④ Cleaning robots
5. ① D ② A ③ B