How do animals communicate (交流) with each other? They have special “languages”. In fact, they are using signals (信号). Different signals have different meanings.

    For example, when a bee (蜜蜂) finds food somewhere, it flies home quickly. It can't speak, but it can tell others by dancing. Other bees will know where and how far the food is.

    Some animals show their feelings by making sounds. For example, when a dog is angry, it barks (吠). At this time, you'd better stay away from it. Birds can make several sounds to show different meanings. Sometimes we humans show feelings by making sounds instead of by speaking. For example, when we feel painful (疼痛的), we cry“Oh!”or“Ouch!”.

    We humans have languages and words. We can communicate face to face by speaking. We can write down what happened in order to remember clearly. We can also send (寄) messages to people far away. But animals can't.

根据短文内容，判断正误。

    Man is a land animal, but he is also closely tied to the sea. Throughout history the sea has served the needs of man. The sea has provided man with food and a convenient way to travel to many parts of the world. Today, nearly two—thirds of the world's population live within 80 kilometers of the sea coast.

    In the modern technological world, the sea offers many resources to help mankind survive (=continue to live). Resources on land are beginning to be used up. The sea, however, still can be hoped to supply many of man's needs.

    The list of riches of the sea yet to be developed by man's technology is impressive. Oil and gas explorations have been carried out for nearly 30 years. Valuable amounts of minerals exist on the ocean floor ready to be mined (开采).

    Fish farming promises to be a good way to produce large quantities of food. The culture of fish and shellfish (贝类动物) is an ancient skill practised in the past mainly by Oriental people.

    Besides oil and gas, the sea may offer new sources of energy. Experts believe that the warm temperature of the ocean can be used in a way similar to the steam in a steamship. Ocean currents (水流) and waves offer possible use as a source of energy.

    Technology is enabling man to explor ever more deeply under the sea. The development of strong, new materials has made this possible.

    The technology to harvest the sea continues to improve. Experts believe that by the year 2000 the problems that prevent us from exploiting fully the food, minerals, and energy sources of the sea will be largely solved.

As an old saying in Xunpu, Fujian province goes, "put flowers in your hair in this life and you'll also be pretty in the afterlife". In the p{#blank#}1{#/blank#}, all the women in the small fishing village had long hair, and then they put colorful and special floral headdresses on their hair. The headdress is k{#blank#}2{#/blank#} as zanhua or zanhuawei. Zanhua was listed as a national intangible cultural heritage in 2008.

As a child, Huang Rongbing would watch his mother, Weng Xiuzhen, comb her long and thick hair. After forming a bun at the back of her head, she would put colorful flowers into her hair, the 34-year-old recalled.

The headdress inspired Huang's career choice. In 2016, he and his elder sister opened a salon. There, tourists can get their hair styled in the Xunpu tradition and have their photos t{#blank#}3{#/blank#}. "We have been fully booked and now there are over 200 businesses offering services to d{#blank#}4{#/blank#} tourists with a zanhua," said Huang.

The I{#blank#}5{#/blank#} in tourist visits has made Huang happy. That's because it not only keeps the business busy b{#blank#}6{#/blank#} helps spread the history and culture behind zanhua headwear.

After going t{#blank#}7{#/blank#} the full zanhua experience, Hu Titi, one of Huang's customers, even brought zanhua culture to Paris in France last year. Under the Eiffel Tower, she shot photos and videos of h{#blank#}8{#/blank#} in traditional Chinese clothes with a zanhua in her hair.

Huang said the women of Xunpu are h{#blank#}9{#/blank#}, warm-hearted and brave. They are famous for catching the best seafood. "W{#blank#}10{#/blank#} they put a zanhua on their heads, they express their wish for happiness. The flowers are seen as a symbol of hope," she added.

Today, we are living a rapid(快速的) life. We always try to get things done {#blank#}1{#/blank#}. On weekdays, we are {#blank#}2{#/blank#} studying or working. One of the {#blank#}3{#/blank#} is that we don't have enough exercise. If we exercise for one hour a day, we will work {#blank#}4{#/blank#} for50 years and live a happy life. 

Scientists have found that people who often exercise are healthier than those who don't, whether they do it indoors or outdoors. According to a report, students can learn better and feel {#blank#}5{#/blank#} when they have more time to play sports at school. Many young women enjoy doing yoga or {#blank#}6{#/blank#} to relax and stay beautiful. In some housewives'opinion, doing housework is a good way to burn calories(卡 路 里). It can keep them moving when getting their house {#blank#}7{#/blank#}. In order to be {#blank#}8{#/blank#} and full of energy, some men like running, riding bicycles or playing ball games. You will be healthy both in the {#blank#}9{#/blank#} and mind by doing exercise. This weekend, don't make any plans. Just get up early and start {#blank#}10{#/blank#} .

Inventions usually make a big difference to people's lives. Do you have any great inventions at home? Do they help you a lot in your life or bring you much fun? Here are some of the most useful inventions in families according to a survey.

Whether we're young or old，rich or poor，we have one thing in common：The moon always looks down at each of us when it lights up the night sky. 

Just like a mirror，the moon reflects the sun's light. It can also reflect people's feelings. This is probably why the moon is always popular among Western and Chinese music，poems and other forms of literature. So when we look at the moon，what exactly do we see looking back at us?

Well，that depends on who's looking. 

The ancient Greek poet(古希腊诗人) Sappho，for example，saw the moon as a woman who lit up space with her beauty. 

Later in England，however，the moon's image(形象) was completely different. In the Middle Ages，English people often drank to get away from difficult life. In their eyes，the moon was a man who liked drinking. In London，at least three pubs(酒馆) were named Man in the Moon. It's probably because the bright moon at night looks like a man's red face after drinking. A popular song sung in the pubs at that time even went，"Our man in the moon drinks wine…"

__▲__ Chinese Tang Dynasty poet Li Bai's Quiet Night Thought reads，"I look up to the mountain moon，and then I look down and think of home. " Similarly，Zhang Jiuling wrote in another poem，"Looking at the moon and thinking of one far away. " So in Chinese culture，when people look at the moon，they may miss their hometown and someone. Very interesting，right?