In 1901, Karl Landsteiner, an Austrian scientist, discovered that there are four types of blood. These four blood types were named A, B, AB and O. People have one of these four types. Blood type O is the most common around the world. Blood type A is the second most common, and type AB is the least common. If people with type A blood are given type B blood, or people with type B blood are given type A blood, they will probably die.

    In 1927, a Japanese doctor, Furukawa Takeji, carried out research and came up with the idea that people with different blood types also had different personalities(性格). He said that people with type A blood are usually calm and serious; people with type B blood are curious, cheerful and outgoing; people with type O blood are generous and trustworthy; while those with type AB blood are often caring, original and careful.

    More recently, a doctor in the United States wrote a book that links blood types and what people eat. For example, his book suggests people with type O blood should eat more meat and less bread. A diet for people with type A blood includes more vegetables. His book, Eat Right for Your Type, has been a hit with people who want to lose weight. However, Dr. Peter D' Adamo believes that eating food that matches a person's blood type can help them lose weight. He thinks it will make the person healthier in other ways, too.

Dear Tony,

I go to a new school in Cambridge now. I like it very much. I'm making a lot of new friends. 

I'm studying new subjects, like science. It's very interesting. We're using computers and learning how to use the Internet. We write e-mails(电子邮件) to people in different countries. I'm learning how people live in different countries. It's great!

We do P. E. on Wednesday in the afternoon, Sometimes we stay in the sports hall to do sports and I like that too. I play basketball after school on Mondays. I like playing basketball a lot. I'm enjoying my new school!

Write and tell me what you're doing in your school in China!

John 

Niu Niu, a six-year-old girl, has become a good helper in a silent foot spa (足疗馆). The owner of the foot spa and all of the workers can't hear. And the girl helps them to communicate with the customers. 

Niu Niu is the daughter of the foot spa owner Hu Yong, who lost his hearing because of a high fever in his childhood. This made it difficult for him to get a job. After finishing training in a foot spa, Hu started his own business in Chengdu in 2019. Peng Feng, the mother, who is also deaf, works together with her husband at the shop. 

Though their shop is small, it is popular with customers because of the couple's good skills. The foot spa is usually busy in the evening, when Niu Niu comes home from school and helps her parents. Niu Niu helps her parents in her sweet child voice and with rich body language. She is very funny and always makes customers laugh happily. 

"She is always cheerful, active and outgoing," said one of the customers. 

"Dad taught me to work hard," Niu Niu said. In her opinion, her parents are like superheroes who look after the family and her. "My parents are different from other people, but they are the best for me," she added. 

Choose the best choice from A, B or C according to the passage.

Health problems which are related to climate change are getting worse, say two research reports.

The report s followed 44 health problems that are related to climate change around the world. They include heat deaths, infectious diseases（传染病）and hunger. "All of them are getting worse," said Marina Remanello. She is research director of the Lancet Countdown project. "With global worming getting worse, doing nothing on climate and health will cost more than acting now, one of the reports says.

The reports are called "code red for a healthy future". One report is centred（集中）on the US and the other is centred on the whole world. The reports found some dangerous facts. At-risk populations like older people and the very young are more easily influenced by high temperatures. For people over 65, the researchers found they stayed living in warm places where it is easier for some diseases to spread. For example, coast areas are warm enough for dangerous bacteria （细菌）to grow. In some poor nations me season for disease-spreading mosquitoes（蚊子）has got longer since the 1950s.

The research also found that 72 percent of countries saw an increase in wildfires. And in 2020, up to 10 percent of the world's land surface was influenced by extreme（极端的）drought. In the US, the heat. fire and drought caused the biggest problems. The Pacific Northwest and Canada saw extreme neatwaves. An earlier study found that the heatwaves would not have happened if there were no human-caused climate change.

Do you believe in green living? Read the following blog and replies about a fun, easy and creative way to make your lifestyle greener.