When people talk about pigs, they always have the same idea — pigs are ugly, lazy and silly However, pigs have some good qualities. They are as smart as dogs and elephants. 2019 is the Year of the Pig. Here are four popular cartoon pigs.

    Dragon Boat Festival is a fun Chinese holiday. Usually, it's in June or July. Both children and adults（大人）like this holiday.

First, there are dragon boat races. Dragon boats are very long. They have bright colours, In each boat, there are many people rowing（划）. There's also somebody beating a drum（击鼓）. The winners（获胜者）of the races can get a lot of money.

During Dragon Boat Festival, people also eat a special kind of food-rice dumplings. To make these dumplings, people prepare（准备）many things. Then they can make different flavors of dumplings. Some are sweet（甜的），some are salty（咸的）. They all taste good. People give them to friends.

On the evening of the holiday, families have a big meal together. Dragon Boat Festival is a great time for everybody.

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People who sit with laptops on {#blank#}6{#/blank#} (they) legs for hours and hours have noticed they get dark marks on their legs. The hot laptop is toasting the skin. {#blank#}7{#/blank#} (doctor) have noticed more people show up with "toasted skin syndrome (综合症)". The marks are not {#blank#}8{#/blank#} (danger), but they look strange because they are just in one spot on people's legs.

Companies that make computers tell people not {#blank#}9{#/blank#} (let) warm computers touch bare skin for a long time. Wearing pants and putting a laptop's case under the laptop is {#blank#}10{#/blank#} (usual) enough to protect one's skin from the computer's heat.

Astronauts would face dangers both getting to and surviving (生存) on Mars. Let's learn about surviving a trip to Mars.

What would it take to keep people safe and healthy on a trip to Mars? Scientists are already working on it, though the trip may be many years later.

Over the last 60 years, many spaceships have flown by orbited（沿轨道运行）and even landed on the Red Planet. However, machines cannot replace humans. That's why the United States, China and other countries want to send people to Mars. But surviving on this trip would not be easy.

A trip to Mars would be the farthest journey in human(人类) history. Mars is about 225 million kilometers away, so it would take astronauts at least 180 days to reach there. However, it only takes a few days to get to the Moon.

Space travel is dangerous. For one thing, staying in space for long periods makes the human body weak. Also, it puts pressure behind the eyes and causes eye problems. But gravity(重力) machines could help.

Then there's space radiation(辐射) to worry about. It is bad for astronauts when they have long journeys. Scientists are working out the issue. They have found that taking certain vitamins can help.

Astronauts will have to pack light to lift off from the earth. But they won't be able to get the things they need easily. Astronauts on the space station practice for this by growing lettuce and other food in space. Engineers are developing 3D printing techniques（技术）which can allow future Mars astronauts to build what they want.

The kites in Weifang never disappoint. Every year the Weifang International Kite Festival amazes visitors with creative kites, as "paper birds" of varied designs keep appearing in the sky.

Kites in China can originate from the Warring States Period when Mozi made the first "wooden kite". Kites didn't actually become popular until the Ming Dynasty. By the middle of the Qing Dynasty, artists who were good at kite making began to appear in Weifang. In 1984, the first Weifang International Kite Festival was held.

Kites were used in China during the wars at the very beginning. For example, they can be used to record wind readings, similar to ship flags at sea. Over time, kites became connected with relaxing activities, and were often flown during festivals and holidays.

Today, kite-flying is a popular activity in China, and the Weifang International Kite Festival is one of the largest kite festivals in the world. In 2024, 622 kite artists from 59 countries and areas took part in the event. Zhang Xiaodong,74, has attended all the festivals. In the early days, he only brought traditional kites to take part in the competitions, but this time, he used sound and light to make the story of Chang'e flying to the moon come "alive".

The festival is a great platform to share kite-making skills. It also brings the people of China and other countries closer. As one citizen put it, "No matter how far away kite lovers go, there is always a 'thread' in their heart that can pull them together."

① Do you have a dog? What can your dog do for you? Do you know that dogs can read our feelings? Now some people find that dogs can smell (v.闻到; n.嗅觉) people's stress (压力).

②Dogs really are man's best friends. They have special smell. A new study said that dogs can smell if people are feeling stressed. Teachers at Queen's University, UK, made the study. They got breath(呼吸)and sweat(汗) from people both before and after doing a hard maths problem. They looked at the people's heart rate (心率), blood pressure (血压) and stress feeling in the study. Dogs can smell the difference in breath and sweat from people. Then they can know when people are stressed.

③The finding is wonderful: the dogs found stress in 675 of the 720 people. It could be 93.75% right! Australian News reported. The study's writer Clara Wilson said, "stress can change people's breath and sweat. Dogs are very good at smelling these changes." In the study, she also said, "this finding helps us learn that how dogs may know people's feelings."

④ This finding shows how special the bond is between people and dogs. The finding also tells us that dogs are very clever. And maybe dogs can help stressed people.