Some scientists say that animals in the ocean are increasingly threatened(威胁) by noise pollution caused by human beings. The noise that influences sea animals comes from a number of human activities. It is caused mainly by industrial underwater explosions(爆炸) , ocean drilling, and ship engines. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.

    Decibels (分贝) measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety five would have the same effect（效果）.

    Some scientists have proposed setting a noise limit （限度）of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales（鲸鱼）.

    A team of American and Canadian scientists discovered that louder noises can seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales' ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed.

    Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research. Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. It's time for them to take action to help ocean animals.

    This week is Computer Science Education Week. During the week, students around the world will be taking part in an "Hour of Code" and learning a little about programming computers. This year, there will be more than 200.000 events in over 180 countries.

    The U.S. Congress first created Computer Science Education Week in 2009 to remember Grace Hopper, one of the women who played an important part in the early days of computers.

    Hadi Partovi came up with the idea of the Hour of Code. He thinks coding is an important skill and that it's important for schools to teach computer science. He started the Hour of Code in 2013 because he was worried that computer science was not a big part of what schools taught in most states.

    To spread his idea, he got the help from many famous people. Some were famous for working with computers, like Bill Gates. Others were famous in other areas. Mr. Partovi got a lot of money for his idea from big companies like Facebook. Google, and Microsoft.

    Students who take part in the Hour of Code complete a short coding challenge that is broken down into small, simple steps. The challenge is supposed to take about an hour in all.

    To raise the interest of students, the challenges are often tied in with popular movies or games. For example, challenges have been built around Angry Birds. Mine Craft. Frozen. and Star Wars—One test of the program's success is whether students keep going once the time is up. It turns out that many of them do. Last year, teachers reported that 92% of their students coded for more than an hour.

Do you want to write a story? Ask ChatGPT and you will get the story just one second later. If you write"a girl wants to go to Australia", you will get the story of Alice, who goes through many difficult things to travel to Australia.

ChatGPT is made by the US company OpenAI. It came out in November 2022. It changes the Internet in a very short time. People can ask it to write stories and emails, answer all kinds of questions and even do homework. In its own words, it is"a big language model* which helps users to write anything they like."

Different from Siri, ChatGPT uses a much bigger database*. It can also learn things by itself. For example, if it gives a wrong answer to your question, you can tell it the right one and it can make changes. "It's a really great product!"Liu Xiaoguang, a computer scientist from China, says,"Its level is the sameas an undergraduate* student's. That's why it surprises the world."

But one big problem with ChatGPT is that it cannot give right information all the time. Rezza, a 28— year—old English learner from France, uses ChatGPT to write a passage."It gives little useful information", he tells a newspaper. Besides, some students will learn nothing if they always use ChatGPT to do homework.This is because they won't think by themselves. So we should be careful to use ChatGPT.

What is the future of ChatGPT? Maybe scientists need to work more on it.

Animal superstars

Recently（最近）, some cute animals have got so many fans online. Why are they so popular（受欢迎）?

Panda Huahua

The full name of this three - year- old animal star is Cheng Hehua. She lives in Chengdu, Sichuan. and visitors may wait for up to three hours to just see her. Why do people like her? Because she is shorter than other pandas of her age. That makes her look fat and round. Some people even say she looks like a triangular（三角形的） rice ball when she sits. That's really fun!

Capybara

Capybaras are the biggest rodents（啮齿动物） on Earth. Nowadays, the name "capybara" has become a buzzword（热词） in China, and people like capybara toys. Why do people like capybaras? Because they are friendly. They can make friends with everyone - turtles（乌龟）, ducks or even monkeys. Sometimes, capybaras become "animal buses" while moving. They take small animals for a free ride.

Now a lot of families keep pets in their houses. Many pets are small 1 like cats, dogs, and birds.

Dogs are people's favourite pets. The second 2 are cats and the third favourite are birds. These small animals are very 3 and friendly. People usually see the pets as their 4 members. People take good care of their pets. They 5 the pets wear beautiful clothes and have nice names. They buy food for their pets in pet shops. They keep their pets 6 every day.

Many pets have their houses and beds. They often take a walk with people 7 the park in the morning.

Some children like pets 8 they need a friend at home. Many old people live alone (独自). Their children do not live with them. They 9 pets at home just because they often feel lonely (孤独的). They think of their pets as kids and they love 10 very much, so pets are very important.

 There is no one like you in the world, so you should learn to be happy with yourself. As we all know, nobody {#blank#}1{#/blank#}(be) perfect. So if you are not the most beautiful or {#blank#}2{#/blank#}(smart) person, that's okay. If you feel that you need to make yourself better, try your best {#blank#}3{#/blank#}(change). If you have tried your best, but you still can't make yourself happy, try this way. Ask yourself two simple {#blank#}4{#/blank#}(question). First, are you happy with who you are?{#blank#}5{#/blank#} the answer is yes, there is nothing to worry about. If you' re okay with{#blank#}6{#/blank#}(you) and you' ve done your best in everything, you should be happy. Second, have you given yourself enough time{#blank#}7{#/blank#}(make) yourself better? You know it takes time.

 Self-confidence(自信) is also very {#blank#}8{#/blank#}(importance). If you are confident, you' ll be okay with the things you do. Here is some advice if you' re not confident. First, find out your talents(天赋){#blank#}9{#/blank#} try to use them. Second, don't always compare yourself{#blank#}10{#/blank#} others. Third, forgive(原谅) yourself for some mistakes you have made.