问题详情：
garden sensor
Do you want to help the environment and do yard work at the same time? This machine knows when your grass needs water. It waters your grass, and you don’t have to do anything! Save time, save water, and save money! Only $ 124.9
the inflatable chair
可充气的
You can take this with you to the beach or on a picnic. No more uncomfortable towels or blankets! It fills with air in five minutes. Feel like you are sitting in your own living room in the great outdoors! Only $ 49.50.
Sound book
What’s a party without music? Indoors or outdoors, you can have a good time with this small item on a shelf or in a tree. Turn it down to set the mood, or turn it up to start the dancing! Only $ 299.99.
Mono fins
What’s it like to swim like a fish? Now is your chance to find out! Put both feet in, get in the water, and feel how it is to flap instead of kick. If you love to be in the water and dive deep, you need this! Only $ 36
21. The garden sensor helps the environment and does yard work at the same time.
22. It takes the inflatable chair more than five minutes to fill with air.
23. The sound book works indoors or outdoors.
24. A person needs two mono fins, one for each foot.
25. Sound book is the most expensive of the four products while the inflatable chair is the cheapest.
【回答】
21.A
【解析】句意：花园传感器有助于改善环境，同时也能完成庭院作业。根据表格第一栏中对garden sensor的产品介绍Do you want to help the environment and do yard work at the same time?可知，这款新型的土壤监测器能够改善环境，当植物需要浇水时还能自动作业，实施浇水，题干的内容与原文相符故*选A。
22.B
【解析】句意：充气椅充气需要5分钟以上。根据表格第二栏中对the inflatable chair产品介绍It fills with air in five minutes.可知，这种充气椅五分钟内就可以充满空气。不是5分钟以上，题干的内容与原文不符，故*为B。
23.A
【解析】句意：这款有声书在室内或室外都能用。根据表格第三栏中对Sound book产品介绍Indoors or outdoors, you can have a good time with this small item on a shelf or in a tree.可知，这种便携式设备室内外都可以使用，题干的内容与原文相符，故*选A。
24.B
【解析】句意：一个人需要两个单鳍，每只脚一个。根据表格第四栏中对Mono fins产品介绍Put both feet in, get in the water, and feel how it is to flap instead of kick.可知，是把两只脚同时放进一个单鳍中，不是每只脚一个，题干的内容与原文不符，故*为B。
25.B
【解析】句意：在这四款产品中，有声书最贵，而充气椅子最便宜。对比四款产品的价格可知这款有声书售价$ 299.99，是最贵的；Mono fins仅售$ 36，是最便宜的，题干的内容与原文不符，故*为B。
知识点：广告布告类
题型：阅读理解
