题目内容：

 

Surprising camera WATCH out! A slingshot (弹弓) is aimed at you. But don’t be afraid. It’s just a camera. It’s called Slingshot camera. The camera will catch your surprised look. Pull the rubberband (橡皮筋) back and shoot. It takes a picture. Two designers from South Korea made it.
Making Use of Smog SMOG (雾霾) is annoying. But what if it could be made into a diamond (钻石)? A “Smog Free Tower” will try to do that, although the diamonds will not be as real ones. Black particles (颗粒) in smog and diamonds are mostly carbon. A designer from the Netherlands made the tower.
New Flower Home WHEN plants get too big, you have to move them from a small flowerpot to a big one. Now the special growth flowerpot can save you time and energy. It’s made of a special kind of material in origami style. It gets bigger and bigger as the plant grows. It is from Belgium.
Solar charged light You can put it in your pocket. But if it’s inflated (充气), it turns into a light! This is LumnAID, a solar light that can be on for 16 hours after recharging (充电) with just seven hours of sunlight. Two US students designed it.

 

 

1.From the passage above, we know that _________.

A.the diamonds made from “Smog Free Tower” can be very expensive as real ones

B.a slingshot camera can catch one’s surprised look by shooting

C.the designer of the special growth flowerpot is from South Korea

D.a LumnAID must be recharged with 16 hours before using it

2._________ might be the best gift for Mary, who loves plants but have little time on it.

A.slingshot camera B.A diamond C.A growth flowerpot D.A LumnAID

3.What’s the news above mainly about?

A.Safety B.Entertainment. C.Environment. D.Invention