Adam and his parents buy things in different ways. Adam likes shopping on the Internet on weekends. http: /club. 360 buy. com is his favourite website(网站). He often buys things such as mobile phones(手机)and cameras(照相机)on it He spends about two hundred yuan buying things on it each month. It often takes him three days to get his products.

    But Adam's parents never shop on the Internet. They can't see the real products (产品)and they often worry. Adam's mother likes buying clothes but she can't try them on(试穿) if she buys the clothes on the Internet. So she often goes shopping with her husband(丈夫). There are some shops near their home, so Adam's parents often go there to shop.

In a small room, Jenny was lying in bed waiting for an operation (手术), nervous and worried. To her surprise, a new patient was sent into the room. After a kind greeting (打招呼), they began to talk. The 80-year-old newcomer was named Susan. She had two children. Her son was boss of a big company and her daughter worked in a TV station. As her children were too busy to take care of Susan, she lived in an old people's home. Susan was proud of her children who had wonderful jobs and made a lot of money. Jenny really envied (羡慕)Susan. Compared with Susan, Jenny was nothing but an ordinary (普通的) woman from the countryside. Her children were just ordinary workers.

Soon, it was supper time, Jenny's daughter cooked several dishes which were her favorite. Jenny invited Susan to share her supper, but she did not accept the invitation. Susan was expecting her daughter when she received a call. Unfortunately (不幸), her children couldn't come to visit her. Worse still, Susan had missed the mealtime in the hospital. She lay in bed, disappointed and silent. Jenny's daughter offered to buy her some food but she had no appetite (食欲) at all.

The next day, Jenny and Susan would go through a series of regular medical checks (一连串的常规检查) before the operation. Jenny's daughter took care of her carefully while Susan was still alone. Out of sympathy (出于同情), Jenny's daughter helped to queue up (排队), fill in different forms and register (挂号) for Susan. For several days in hospital, even during her operation, Susan's children didn't come. Susan really envied Jenny as her daughter looked after her all the time until she recovered and moved out of hospital.

Care from the loved ones can really make one happy and encouraged, especially for old parents. So don't forget to look after your parents even while you are busy working.

Lei Jun was born on December 16^th, 1969 in Xiantao, Hubei. His parents are both villagers. Lei Jun got a very ordinary(普通的)start in his life and no one would think he would write his life into a great story of success(成功).

He was the best science student in Xiantao City. When he was18, he went into the computer science department in Wuhan University. Only after two years, he finished his study with good grades.

In 1992, Lei Jun joined Kingsoft and worked there for 16 years. Later, Lei Jun felt that he didn't do what he would like to do and made up his mind(下决心)to set up a great company. So in April, 2010, Xiaomi came out. However, Xiaomi is going on a very difficult road. Lei Jun went through so many different worlds and climbed up so many high mountains. Xiaomi SU7 was another high mountain he climbed up to.

The hard-working Lei Jun is the idol(偶像)of many people because he lets us see that study can really make our life different.From an ordinary family,he does something good and practical(实际的)for ordinary people. Lei Jun always remembers his words: "Science and technology should not be something high up in the air.They must serve(服务)everyone." We are looking forward to seeing him climbing over another higher mountain.

It happens every spring. Flowers come out everywhere on the same day. But how do plants "know" when to flower?

For years, it has been a difficult question for scientists. But a US research group may have finally answered it—the secret lies in a protein(蛋白质)called FKF1. This helps plants to know when the days become long and when they get short. Then they can tell the seasons(季节)are changing.

Researchers found the FKF1 protein when they were studying a plant called Arabidopsis. It is sensitive(敏感的)to sunlight, and can be made active by sunlight.

Plants produce this protein every day in the late afternoon all year. If there is no light at this time, for example, in winter when the sun goes down early, the protein won't be active. But when spring comes and the days get longer, the FKF1 protein can be made active by day light and the plants "know" it is time to flower. " If there is light in the late afternoon, plants will know that the days are getting longer and that it is the best time for flowers to come out,"explained Takato Imaizumi, leader of study. But when conditions are poor for growing, such as during autumn or winter when the weather is cold and days are short, plants won' t flower.

Although researchers have only studied how the FKF1 protein works in the Arabidopsis, they believe that it is the same with many other plants, including crops such as rice and wheat.

"If we can control when flowers come out, we might be able to increase crop production," Imaizumi said.