A: Mr. Liu, can I ask you some questions about Mars?

B: Sure, go ahead.

A: Is Mars hot?

B: Mars might look red-hot. But don't let its color fool you. Mars is much farther away from the sun than Earth. So it gets less light and heat.

A: Why "Mars"?

B: Mars takes its name from the Roman god of war (罗马战神). In China, the red color makes people think of fire. So they call the planet "fire star".

A: Are there Martians on Mars?

B: Unluckily, we haven't found any "people" on Mars yet. They are kind of like Santa Clause. Nobody can see them, but many people believe they are real.

A: Will we lose weight on Mars?

B: Living on Mars could be good in many ways. For example, you might not need to go on a diet to lose weight. If you weigh 50kg on Earth, you will only weigh 19kg on Mars. This is because the surface gravity (表面重力) on Mars is only about 38 percent of that on Earth. Do you want to know your weight on Mars? Just multiply your weight by 0.38. That's it.

A: Thank you. We know a lot about Mars now.

B: You're welcome.

Anna and her friends want to buy some things. Here is their shopping list(购物清单).

A: Hello, Lily! {#blank#}1{#/blank#}

B: Nothing much. I'm thinking about travelling in England.

A: {#blank#}2{#/blank#}

B: Not really. But this app can help me.

A: {#blank#}3{#/blank#}

B: The system can translate any English sentence into Chinese.

A: {#blank#}4{#/blank#} Maybe I can see you off that day.

B: On April 15th, this Saturday.

A: {#blank#}5{#/blank#}

B: Thanks a lot.

A: Hello, Wang Lu! {#blank#}1{#/blank#}

B:I ran a marathon (马拉松赛跑)

A: Wow! How long did it take you to finish the marathon

B: {#blank#}2{#/blank#}

A: How great you were! {#blank#}3{#/blank#} 

B: Yes. I run every morning. 

A: That's a good habit. But I don't want to run alone. 

B: {#blank#}4{#/blank#} 

A: Sounds good. But how can I join the club

B: {#blank#}5{#/blank#} Just go to Mr. Green's office and fill out a form (填写一个表格) . 

A: I see. Thank you very much. 

On January 1, 2024, a library opened in Guizhou Province. Children have a new place to spend their winter vacation—a library in a karst cave (溶洞). 

This is the eighth library that the charity (慈善机构), Dashan Xiaoai built to help rural (乡村的) children. It helps rural children get educational resources (资源) and open children's eyes through all kinds of activities. 

32-year-old Zhou Beilei works on rural education for more than 10 years. On weekends and holidays, these rural children spend much time at home alone and have no chance to get educational resources like bookstores. That's why we decided to build libraries for them. They can do meaningful activities, and develop their love for reading there, " Zhou says. 

She adds that the library is not just a place for books lovers. Lu Xiaoman, a fifth-grader and reader, wrote in the library's guest book that "it is my second home, only more fun and better". 

Built with the support of the local government, companies and kind people, the charity's libraries have around1 120, 000 books, and receive about 18, 000 visitors every month.