We are lucky to live in a rich country where we have many things. However, most of us usually {#blank#}1{#/blank#} (waste) some things.

    Electricity is one thing that we waste most. Lights, TVs, {#blank#}2{#/blank#} (radio) and other things are often kept on even when no one is using them. We should turn them off {#blank#}3{#/blank#} we do not need them. It takes  {#blank#}4{#/blank#} (little) than a second to do it. Anyhow, not wasting electricity saves money, because we do not have to pay for the electricity we do not use. The {#blank#}5{#/blank#} (two) thing that we often waste is water. Fresh water is precious, so it shouldn't be wasted. It is only a simple matter of turning {#blank#}6{#/blank#}a tap. I am sure everybody can do this {#blank#}7{#/blank#} (easy) if he wants to. Another big waste is food. My mother used to cook so much food that much of it was thrown away. I told her we had wasted so much {#blank#}8{#/blank#} (food). She thought I was right and now cooks mainly what we can eat.

    It is not right to be wasteful. I find there is a simple way of not wasting things. That is {#blank#}9{#/blank#} (use) only what we need. Do not touch what we do not need. {#blank#}10{#/blank#}this way, we can stop being wasteful.

阅读下列短文, 从下面每个小题的A、B、C、D四个选项中选出最佳选项。

Breakdancing, also known as breaking, will be an Olympic sport for the first time in 2024. To attract younger people to watch sports games, breaking is becoming a new event at the 2024 Paris Olympic Games. Paris 2024 Olympics will see 16 b-boys and 16 b-girls compete in one-on-one “battles”. The top finishers will get the Olympic prize.

Breaking is a kind of street dance. It is also part of the hip hop movement. It grew up together with hip hop during the early 1970s. It was really popular among African American and Latin American young people.

In the past, people wouldn't believe that street dance could become an Olympic sport. However, it comes true now. When the International Olympic Committee says breakdancing will be added to the 2024 Paris Olympic Games, a lot of people are excited. “It is a historic time not only for b-boys and b-girls, but for all dancers around the world. We thank everyone who helped make it possible,” says Shawn Tay, president of the World DanceSport Federation (WDSF). WDSF is happy about the result and it will prepare for the breakdancing competition to make the event unforgettable.

Skateboarding, surfing and rock-climbing are also becoming the 2024 Paris Olympic events. In fact, the three new sports have already been added to the program for the 2021 Tokyo Olympics. These new sports are going to make Olympics more attractive.

Maggie：I have always admired students who hand their homework in on time and never forget to do it. So I was wondering，what are your tips for getting organized? Please post your ideas below to help me!

Justin：Good question，Maggie. I always spend about five minutes tidying up the desktop on my computer. I make a backup of important documents. I delete things I don't need any more and put everything into the correct place. 

Jeff：The most important thing is to start studying a few weeks before the exams and not to leave it until the night before! That's common sense，I think. 

Sawyer：Hi，Maggie. My tip is to have a big notice board in your bedroom，divided into different areas. I've got an area for each subject and another one for other work. I use board pens to write reminders and I make sure I look at it every day. The best part is when I clear something off the board!

When you feel unhappy or forget how great you are, these are five ways to make you feel good about yourself.

* Look in the mirror(镜子) and say to yourself" {#blank#}1{#/blank#}I can do anything."It may not sound so good, but it really works(起作用)!

*{#blank#}2{#/blank#} Helping others always makes you feel good.

* Smile! {#blank#}3{#/blank#} Look for the good things in your friends and family.

* Read and start a diary. Turn off the TV and let your imagination (想象) fly! Write down your thoughts,dreams or anything you want! {#blank#}4{#/blank#}

* {#blank#}5{#/blank#} We all need our family time. Talk with your Mum or Dad or maybe even your cousin.

A. Stay with your family.

B. I'm a special person and there's no one in the world like me.

C. You should be friendly to people.

D. Help someone.

E. Writing always helps to express(表达) your feelings.

Have you ever imagined being able to communicate with your pets at home and have them understand everything you say？It sounds too good to be true，but scientists have started using AIto help communicate with animals. 

Professor Bake told Scientific Magazine that AI allows humans to use technology to watch and understand the sounds and signals animals communicate with so we humans can try to speak back to them. She said trying to communicate in animals' language could be better than teaching them how to use human sign language. AI is already helping us communicate with bats and bees. This could change what we know about these animals and our relationships with them. 

Professor Bake explained how Scientist Tovel had used recordings and AI to understand bats. "Bats have their own language. They often argue over food. They have different names，or 'signature calls'，" she said，mother bats lower their voice when speaking to their babies. Their voice can never be heard with human ears. But AI makes this possible because a computer can be trained to listen like a bat. "

Actually，AI has so far achieved a lot in this field. For example，the computer not only listens but also watches bees' body movement to understand what they are communicating. Bake said scientists now know how bees say things such as "be quiet" or "stop". Scientist Landlof even created a robot Honeybee that entered a bee's home and was able to communicate with other bees when it wanted them to stop doing something or fly.