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Mosquitos（蚊子） can cause us serious diseases. Until now, we’ve used different things to keep them away. But none of these ways actually protect us for more than 20 minutes! Now there is a new way to keep mosquitos away from you ever again without using any chemicals at all.
What is it all about?
It’s called the Mosquitron—a new mosquito catcher or killer. It’s very easy to control and it can protect your home from all the mosquitos!
How does it work?
Instead of trying to keep the mosquitos away, it attracts them, then catches them and finally kills them! Basically, it will attract the mosquitos into the Mosquitron, with a completely harmless UV-PT producing light. Next to the UV-PT light is a powerful reverse （反向的）fan that sucks（吸） the mosquitos through a one way trapdoor. Once they are trapped in the drying basket, they are dried to death by the fan in 2 minutes.
How much does it cost?
You’d be surprised to find that you can get it right now for just $89. It might seem ex-pensive at first. However, when you compare it with other products which need regular, ex-pensive repair and don’t work for more than 10 minutes, it is pretty cheap. In fact, some products using the same UV technology are priced over $250!
How to buy Mosquitron?
That’s very easy. You can only buy it from the supplier’s website.
21. Why should we stay away from mosquitos according to the text?
A. They produce much noise. B. They can cause serious diseases.
C. They pollute the environment. D. They can make dangerous chemicals.
22. How does the Mosquitron clear mosquitos?
A. By watering them in a basket. B. By attracting and killing them.
C. By burying them with hot sand. D. By giving off strong and harmful light.
23. Where does the author advise buying a Mosquitron?
A. In restaurant. B. In a computer store. C. On the website. D. In a supermarket.
