I'm Bob. I work at night from Monday to Thursday. So in the daytime (白天), I often sleep for at least 7 hours. Then I get up, have some food and watch TV. I usually watch TV for more than two hours every day. At 7:00 p.m., I go to work by bike.

But on weekends, my life is different. I usually sleep at night and do different activities in the daytime. For example, last weekend was quite full for me. On Saturday morning, I went to learn dance. I have dance lessons once a week. In the afternoon, I went to play basketball with my friends. We played for three hours and felt excited. I thought it was good for my health. On Sunday morning, I drove to the dentist for teeth cleaning. In the afternoon, I went to the movies with my friend, Tom. I thought the movie was interesting, but Tom thought it was difficult to understand (理解).

Long March(长征) exhibition

The Shanghai History Museum is putting on an exhibition to remember the Long March which took place over 70 years ago. More than 220 photos and 40 other things are on show. All the exhibition is explained in Chinese. The show will end on November 20.

Time: 10:00 am-4:00 pm

Address: 1286 Hongqiao Road

Ticket: 8 yuan for Chinese/15 yuan for foreigners

Thai elephants

Eight elephants from Thailand are an attraction for visitors at Changfeng Park by riding bikes, playing basketball, dancing and blowing a musical instrument. The elephants give three shows a day at 9:30 am, 3:30 pm and 8:00 pm and there is an extra show at 1:30 pm at weekends. The show will end on November 15.

Address: 189 Daduhe Road

Ticket: 30-40 yuan

Dancing dolphins

Dolphins jumping from the water to touch a ball, dancing to music, kissing people and doing easy maths problems, and seals and sea lions, also performing, have made a large part of the aquarium(水族馆) in Peace Park, which interests children greatly.

Hours: 10:30 am, 4:00 pm, and 7:30 pm

Ticket: 20 yuan for adults and 10 yuan for children

The train No. 5609/5610 runs between Chongqing and Xiushan County（县）. It is1 slow train. In some carriages( 车厢）of it,there2 some desks and chairs next to the windows. These carriages are called "study carriages". 

There are also "study carriages" on other slow3 like No. 5619/5620 and No. 5633/5634. The trains4 along the Chengdu-Kunming Railway. Students often take the train between school 5 home. The train are6 their "school buses" and many students do7 homework in the study carriages. 

On the train No. Z150 between Guiyang and Beijing, a "book bar（书吧）" carriages is 8 popular (受欢迎的). The carriage is open(开放）at night to give students a reading place with free tea. And there is only one rule--9 noisy. 

If you need quiet places to study,these carriages on the train are really helpful. Do you want10 a try？

Fleming saw many soldiers die from infections (感染) in their wounds as he worked in a hospital during World War I. This made Fleming decide to find a way to help the body fight infections. 

In September 1928, Fleming left some glass dishes on a bench in his laboratory for two weeks. When he came back, he noticed something puzzling. Bacteria (细菌) were growing on all the glass dishes except one. On this dish mould (霉菌) had started to grow—the kind found on old bread. The mould seemed to be giving off something that stopped the bacteria from growing. Fleming called it "mould juice". He tried it on other bacteria, and it killed them, too. Fleming became wild with joy and named it penicillin. 

Unfortunately, Fleming's boss thought he was wasting his time and it was impossible to kill bacteria at that time. Fleming did a few more experiments with penicillin, and he also wrote about it so other scientists could learn about it. However, because no one seemed interested in his discovery, he forgot about penicillin and started to work on other things. 

In 1939, Ernest Chain, a scientist, and his boss, Howard Florey, were looking for medicines that could kill bacteria. They discovered Fleming's notes and decided to test penicillin. In 1940, they gave penicillin to some sick mice, who survived later. But those who didn't get it died. Florey declared: "It looks like a miracle!" By 1943, the final tests on humans were finished successfully and the world had its first antibiotic (抗生素) medicine.

"It is time to present a modern China and ordinary Chinese people to the world instead of always focusing on the country's 5,000-year history," Zhang Yimou, the chief1 of the opening ceremony of the Beijing 2022 Winter Olympic Games, said in Beijing on Friday.

The children singing the Olympic anthem (会歌) and the Beijing 2022 Winter Olympics theme2 were primary school students, many with no stage experience.

Training, which began in October, mainly took place on weekends in schools or workplaces. When the rehearsals (排练) were3 in Beijing's National Stadium, where the opening ceremony would be held, the organizers had to4 desks for the children to do homework during breaks, 5 most of them were at school. Sometimes, teachers would hold classes on site while students were waiting to rehearse.

The children came from Fuping, a small county (县) in Hebei. Many live in villages and their parents are6 .

It was the first time the 44 little singers had left home to7 in Beijing, a moment even more memorable for8 during Chinese Lunar New Year, usually a time for families to get together.

"Most don't have any singing experience. It will be a(n)9 experience for them in their whole lives," said their headmaster, Liu Kai.

"They were not performing. They were playing, all very happy and relaxed," Zhang Yimou said. "We wanted to present a modern China and the lives of10 Chinese people. There were no great performers, but everyone was true, which touched the audiences' hearts."