Eating lots of vegetables is good for our health. Different vegetables can help our bodies in different ways. Eating carrots is good for our eyes. Carrots can help us see better at night. Do you want to have strong teeth? If so, you can eat some peas(豌豆). Peas have vitamin(维生素) K in them. Vitamin K is helpful to your teeth. Do you like tomatoes? They look nice. Doctors call tomatoes "healthy vegetables", because they can help you not to get cancer(癌症). They also have a kind of special vitamin PP. It can keep our skin(皮肤) healthy. So it is important to eat some tomatoes. Don't forget about spinach(菠菜). The spinach leaves have vitamin A, vitamin C and vitamin E. They help our bodies make red blood cells (血红蛋白).Vegetables are very important to us, but we can't only eat vegetables. We also need to eat other kinds of food to keep healthy.

It's December 28th New Year's Day is 1 Ma Li is in a 2 shop She wants to buy a blouse 3 her mother She is happy because she 4 a blue blouse It looks pretty She thinks it 5 her mother's trousers well So she asks the shopkeeper what the 6 is "198yuan, "says the shopkeeper Ma Li is suprised(吃惊的), "Too 7 ! What is it made of?"The shopkeeper tells her the bl ouse is made of silk "Good things always 8 much, "he says

"But I have only 190 yuan. Can it be cheaper(更便宜的)? I want to buy it for my mother. "

"9 198yuan is the last price But I will lend you 8 yuan "

"10 ? We don't know each other "

"Because I love my mother too, "says the shopkeep er with a smile.

Romeo is my pet dog. He{#blank#}1{#/blank#} （come） to our home years ago. Romeo is very cute. He loves to play games{#blank#}2{#/blank#}me. When I am at home，he{#blank#}3{#/blank#} （follow） me everywhere around the house. Romeo is{#blank#}4{#/blank#}clever dog. He can understand many{#blank#}5{#/blank#} （order） like bringing a toy and dropping it on my foot. 

On{#blank#}6{#/blank#} （sun） days，my family like going out for fun. Romeo always goes with{#blank#}7{#/blank#}（we）. Three years ago，it was an afternoon in my{#blank#}8{#/blank#} （seven）grade，my family went for a picnic in the woods. My two little sisters ran with each other{#blank#}9{#/blank#}got lost. Everyone was very worried. At last，Romeo helped find them{#blank#}10{#/blank#} （quick）. 

What a wonderful pet!I love Romeo!

Young scientist Li Yuehua works at Zhejiang Lab(之江实验室) in Hangzhou, Zhejiang Province. There is something special about the lab— as Li enters it, she feels out of this world. It brings her to one of the earth's closest neighbors: Mars.

The lab simulates(模拟) the environment, such as the ground and light, on the red planet. In the lab, Li and her team develop and test AI technology to make future Mars rovers(火星车) smarter.

Zhurong, China's first Mars rover, got to Mars in 2021. As Zhurong moves on Mars, it sends information back to the earth. The ground team checks the information before it can move on. The process can take up to 40 minutes.

" Today's rovers are like babies. They can perceive what's around them but they're not able to understand them. Scientists on the earth must tell them how to communicate with the environment," said Li." We hope our AI technology will help Mars rovers learn about the environment and decide where to go on their own."

Li's team needed a better place to do that. Is there anywhere similar to Mars on the earth? The answer was found in the deep desert of Dunhuang, Gansu Province. The team went there in summer and soon started to work. However, it was so hot that several machines stopped working and some team members got sick. Although it was really hard, they didn't give up. Finally, the team developed a better technology.

" An important part of science is facing failure(失败)," Li said." It is like climbing. You face difficulties and try to solve them time after time."

Sarah: Good morning, David. 

David: {#blank#}1{#/blank#} Could you please show me around your school? 

Sarah: Of course. Just follow me. Look, this building is our office building. 

David: Wow! It's tall and new. {#blank#}2{#/blank#}

Sarah: The building on its left us the art building. Students have art lessons there. 

David: {#blank#}3{#/blank#}

Sarah: Yes, there is. The science building is behind the art building. 

David: Where is the dining hall, Sarah? 

Sarah: The dining hall is behind the library. We have lunch there. 

David: {#blank#}4{#/blank#}

Sarah: We have PE on the playground when it is fine. But when it rains, we have it in the gym. 

David: Sounds great! {#blank#}5{#/blank#}

Sarah: You're welcome.