B．the research team is made up of three scientists

C．the Atlantis Massif was found by Blackman and Cann

D．the Mid­Atlantic Ridge is the largest mountain range on the Earth

　　　　　　　　　　　　　　B

Standing in the shower waiting for the water to heat up could be a thing of the past，along with all the wasted water.

Three and a half years ago，Lindy Honeychurch，a thirty­year­old Australian full­time mum living on a farm outside Launceston，didn't consider herself a very good water saver. Neither did her partner who often complained about it，and with good reason. Their farm had to rely on tank water and solar power，which meant water had to be trucked in if the tank water ran out in summer.

"I looked at where I could save because I could lead an easier life without the nagging，" she said. Modeling her idea on a car thermostat (恒温器)，Lindy used her kids' magnetic drawing board to design a device that diverts the cold slug of water back down the hot water pipe.

"The first aim when I started designing was to keep it really small and simple without having to use power. I wanted to keep it as something that everyone could use，"said Lindy.

She got a patent for her design and took it to some engineers to have it tested out. At first，even though the engineers were amazed that she wasn't an engineer，she said she sometimes found it hard to be taken seriously.

"My age was a real factor because in the plumbing and manufacturing industries you're dealing with people who've got a lot of experience，" she said.

But the engineers soon saw the potential of her design，which she estimated would save average families between 14，000 to 22，000 liters per year.

"When you transfer that to the dollar savings on tank water，you have to buy water，it can be a saving of $600 per year，" said Lindy.

Armed with positive feedback from engineers and people using rainwater tanks，her design proved a great success. Soon she found a manufacturer early this year，and completed a state government commercial ready course to help her research，her markets and distribution channels.

With an Australian Standard for her device just approved，she's about to start manufacturing and wishes to see her products on the shelves within the next few months. Once that happens，Lindy plans to return to being a full­time mum.

24．The second paragraph of the text is mainly about ________．

A．Lindy's unhappy family

B．Lindy's comfortable farm life

C．the background to Lindy's invention

D．the procedure of Lindy's invention

25．It is ________ that drove Lindy to invent a water­saving device.

A．her dull life as a housewife

B．the difficulty in getting water on her farm

C．her husband's request