The AI (人工智能) has changed our lives. There are four useful AI inventions here.

Wang Yaping, together with Zhai Zhigang and Ye Guangfu, went into space aboard the Shenzhou XⅢ on Oct 16. The 41-year-old Wang became the first female astronaut(女航天员) to enter Tiangong space station.

Wang’s space dream started in 2003, when China sent its first astronaut Yang Liwei into space. At that time, Wang was a pilot in the Chinese army. After having safe flights for 1,600 hours over nine years, Wang was a strong candidate(候选人) to become an astronaut in 2010. She pushed herself hard, getting the same training as men. “The space environment won’t change because you are a woman,” she told Xinhua.

The hardest part is the high-G training. Sitting in a spinning(旋转的) machine, Wang would become blind for a while because her brain was short of blood. “There’s a red button(按钮), ” said Wang. “If you can’t stand it, you can press it to stop.” But Wang never used it. “There is no such red button in my heart.” That strong spirit finally made her dream come true in 2013. She joined the team for the Shenzhou X mission(任务).

Wang said that as astronauts, women have their own advantages(优势). “Women may be more patient and can better deal with loneliness. Women’s hearts are also easier to adapt(适应) to the weightless environment, making them more suitable for long-term missions.”

Wang Yaping went a long way before becoming the first woman to enter the Tiangong space station. She sets a good example for all women who dream of going to space.

Two angels stopped at the gate of a rich family. The family was very rude and _________ to let the angels stay in the guest room of their big house. _________, they stayed in the cold basement（地下室）for a night.

As they made their bed on the cold _________, the older angel saw a hole in the wall and _________ it. When the younger angel asked _________, the older one said, “Things aren’t always what they seem.”

The next night they rested at the house of a very _________ farmer. The kind farmer and his wife _________ what little food they had with them. Then the couple let the angels sleep in their _________ . This way, they got a good night’s rest. When the sun came up the next morning, the angels found the farmer and his wife in tears. Their only cow was _________.

The younger angel asked the older one __________, “How could you let this happen? The __________ family had everything, and you helped them fix the wall. The second family had little, but was willing to share __________, and you let their cow die.”

“Things aren’t always what they seem,” the older angel __________, “There was a gold mine（矿） behind the wall of the rich family. __________ the family was unkind and unwilling to share, I fixed the hole in the wall so they won’t find it. Then last night, death came for the poor man’s __________. I gave him the cow instead.”