After only about ten years, smartphone technology is so 【小题1】 (success) that businesses and employees have trouble imagining a day without smartphones. Besides 【小题2】 (make) phone calls, nearly all smartphones today can provide directions through GPS, take pictures and play music. Your business can make good use of this 【小题3】 (rapid) developing technology.

Old school cell phones can call and text. Smartphones allow you a number of ways of communicating 【小题4】 your staff, customers and suppliers. You can remain connected through social networking sites like LinkedIn.

Once, you might use an entire bag 【小题5】 (carry) around all the devices 【小题6】 (need) for daily business activities. You would need your cell phone and laptop (笔记本电脑). You might also need an MP3 player, a camera and a GPS device. A smartphone can put all of this functionality into your pocket. One of your 【小题7】 (worker) can easily search for directions to a client’s (客户的) business and read a sales flyer before a meeting starts.

The sensors built into the smartphone as well 【小题8】 its portability (便携性) have made it a device with almost limitless apps. You and your staff can keep fit with health and fitness apps. Using Internet radio and podcasting apps 【小题9】 (put) you in touch with whole new worlds of audio (音频). Apps 【小题10】 let you paint or create music improve your creativity.

Having a WiFi connection is no guarantee of a pleasant internet experience. If 【小题1】 signal is weak，you’11 spend a long time staring at a loading bar.

Now a group of engineers at the United States Massachusetts Institute of Technology(MIT)may have a 【小题2】 (solve). They 【小题3】 (design)a“smart surface”that can boost the WiFi signal in your home by nearly 10 times.

The smart surfaces are paper-thin，so they can be installed like wall-paper. They contain thousands of tiny antennas(天线)but don’t need power or wiring. All they do is reflect 【小题4】 (signal). A smart surface can work both as a mirror or a lens to focus radio signals onto the right devices. By doing so，it increases the median signal strength by nearly 10 times，【小题5】 (double)the median channel capacity in an office environment.

According to the researchers，the smart surfaces would allow 【小题6】 (small) devices to be made，like tiny sensors that detect the indoor pollution levels or those that monitor machines in a warehouse. These were 【小题7】 (previous)believed to be too small 【小题8】 (give)off a strong enough WiFi signal.

In addition 【小题9】 easy usage，it will probably be relatively cheap. According to the estimations，such a setup could probably cost you a few cents per antenna. 【小题10】 bright side is that it would consume less power compared to conventional systems.

Kites nowadays can be seen in parks throughout the world. But 【小题1】 is believed that the first kite was invented by the Chinese more than 2,000 years ago. In the beginning, the kites 【小题2】 (use) for military (军事的) purposes and defense. Since the Qing Dynasty, kites have been used mostly for 【小题3】 (entertain) and celebrations.

For a long time, kites were used only in China and nearby countries. Businessmen 【小题4】 visited China took kites to India, Korea and other parts of Asia. Marco Polo was the first person 【小题5】 (take) Chinese kites to Europe, after one of his famous trips to China in the 13th century. He was also one of the first 【小题6】 (author) who wrote about the kites, 【小题7】 (explain) to the Western audience how to use them. They spread from Europe to North and South America as well.

During the 20th century, kite flying festivals became very popular in China. Weifang, Shandong is considered the kite capital of the world and the Weifang International Kite Festival 【小题8】 (attract) many tourists from around the world.

Weifang is also home to 【小题9】 (famous) Kite Museum in the world. In the Weifang Kite Museum, it is possible to see 【小题10】 impressive collection of kites from all periods. Professionals are able to figure out the period just by examining the materials and decorations used.