A
Drone X Pro is a shining star on the drone(无人机) market. Here's why it's gone viral.
How does Drone X Pro work？
Start by installing the Drone app to your smartphone (Android and iOS). It takes just minutes. After that, just install(安装)the battery in your drone and launch the app. You're now ready to fly your Drone X Pro！
Why is this drone so special？
The drone is about the size of a large screen smartphone. It's so small that it fits in any pocket or handbag！
Here's the best part: flying is extremely easy. There's no experience required to fly this drone. You can easily control and fly this drone，even if you've never flown a drone in your life. Flying the drone is smooth and natural as riding a bike. Our friend's son came over to the office, and he figured out how to fly the drone in just minutes. You can't imagine how stable and smooth his controls are！
Once you own this drone，you can enjoy amazing HD pictures of nature，friends，and families. It's a blast！
How much does it cost？
Now，Drone X Pro sells for ＄150 each online and two at a discount of 80％. It's a great deal！If you're not satisfied, return it and you can get your money back.
Because of the easy use，portability, low price，and small size，it's absolutely worth it！
Just imagine amazing pictures and videos you'll be taking with your new Drone X Pro. If you've never flown a drone before，this is the time to start！
Call now！ 400-800-7832 or order yours from the official website www. dronexpro. com.
21. What makes Drone X Pro different from the other drones？
A. It is easy to carry. B. It is unnecessary to install.
C. It is complex to control. D. It is expensive to afford.
22. How does the advertisement prove flying Drone X Pro easy？
A. By sharing some experience. B. By presenting a vivid picture.
C. By stating its operating steps. D. By giving a specific example.
23. How much should you pay to purchase two such drones online？
A. ＄120. B. ＄150.
C. $240. D. $ 300.
【答案】21. A 22. D 23. C
【解析】
【分析】这是一篇应用文。作者通过这篇文章主要向我们描述了无人机X Pro是无人机市场上的一颗闪亮之星以及为什么它如此受欢迎的原因。
【21题详解】
细节理解题。根据Why is this drone so special？下的The drone is about the size of a large-screen smartphone. It's so small that it fits in any pocket or handbag!(它大约有一部大屏幕智能手机那么大。它太小了，可以装进任何口袋或手提包！)可知，容易携带是DrupX Pro与其他无人机不同的地方。A. It is easy to carry.(容易携带)符合以上说法，故选A项。
【22题详解】
推理判断题。根据Why is this drone so special？下的Our friend's son came over to the office， and he figured out how to fly the drone in just minutes．(我们的朋友的儿子来到了办公室，他知道了如何在几分钟内驾驶无人机．你无法想象他的控制是多么的稳定和流畅)可推测，该广告通过给出一个具体的例子证明飞行无人机容易。D. By giving a specific example.(通过给一个具体的例子)符合以上推测，故选D项。
【23题详解】
细节理解题。根据文章倒数第三段的 Now, DroneX Pro sells for ﹩150 each online and two at a discount of 80%.(现在，DPROX Pro的在线售价为150美元，其中两款的折扣为80%)可知，在网上购买两台这样的无人机应该支付﹩300*80%=﹩240。故选C项。
