D．the need of increasing agricultural water

26．What happened when Lindy first took her design to some engineers?

A．They did not pay much attention to it.

B．They believed it was a great invention.

C．They helped her test it out immediately.

D．They laughed at her because it was of no use at all.

27．The underlined word "nagging" in Paragraph 3 probably means "________"．

A．discouraging　　　　　　 B．praising

C．encouraging D．complaining

　　　　　　　　　　　　　　　C

High­tech clothing with embedded biosensors (生物传感器) and an Internet connection could respond to your mood and help you get through the day.

The new "smart" clothing contains wireless biosensors that measure heart rate and temperature，small speakers，and other electronics that are wirelessly connected to a handheld smart phone or Personal Digital Assistant (PDA)．Data from the sensors is sent to the handheld device where it is changed into one of 16 emotional states，which clues a previously­built database to send the wearer some inspirational messages.

These "mood memos" could be a text message，which scrolls on a display on the clothes' sleeve，a video or a photograph displayed on the handheld device，or a sound that comes through the embedded speakers. The researchers have made two prototype (雏形) garments so far，a male version and a female version，and they plan to display them at museums over the next two years. They are also looking at medical and fashion applications.

The sounds，photos and videos sent to the wearer aren't arbitrary. Instead，the messages are spoken by a friend or loved one."When you first wear the clothes，you turn on the device and you tell it what person you want to channel that day，" said Professor Barbara Layne."That could be your lover who's away，your deceased (已故的)parent，your best friend and whoever you want to be with that day."

"During the day，you can set it for as many times as you want. The clothes will take your biometric readings，your bio­sensing data，analyze it on that emotional map and then go up to the Internet，to the database which relates that emotional state，and bring you back something that you need，" said Layne.

Layne and her co­developer Jams Jefferies，along with their team members have not yet pursued commercial applications but are showing a lot of interest.

"The interest is really huge from all kinds of sectors，"Layne said."One example is the medical area，which could use the smart clothing to promote well­being，maybe for someone who's ill，either house­bound or in hospital where wearing this kind of jacket can make them feel better."

28．The underlined word "it" in Paragraph 2 refers to ________．

A．a handheld device

B．temperature of the wearer

C．data from the sensors

D．heart rate of the wearer

29．What do we know about the new smart clothing?