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Qingming Festival, also known as Tomb-Sweeping Day, is celebrated as traditional Chinese festival on April 4th or 5th each year. It is a time when people honor their ancestors by visiting graves, cleaning tombstones offering food. One tradition of Qingming Festival is to burn paper money and other symbolic items for those have passed away. People (firm) believe these offerings provide comfort to their ancestors in the afterlife. Another popular activity is going on spring (outing), which allows families (enjoy) the beauty of nature after winter. In southern China, people often eat Qingtuan, a green rice cake filled sweet bean paste. It is said that (eat) Qingtuan during Qingming Festival brings good fortune. Qingming Festival (celebrate) for over 2,500 years and deeply reflects the Chinese value of respecting and caring for one's elders, which has been passed down through generations. Today, although customs vary, the key spirit of remembrance is still of (important) in Chinese culture.

Dr. Godfrey immediately sent two pre-vet students to4 the injured cat. When they returned, the cat was in5 condition. Its right front leg was severely6, probably from being caught in a trap. The wound smelled terrible, and the cat was clearly in great7.

After examining the cat, Dr. Godfrey realized the leg couldn't be saved. The big question was what to do next, as the cat seemed to have no8. Just as they were considering putting the cat to sleep, one student gently9 the cat's head. To everyone's surprise, the cat10 with a soft meow (喵叫). Encouraged by this sign of life, Dr. Godfrey decided to perform11 to remove the damaged leg. The surgery was successful, and the cat now named Tripod began his12.

Over the following weeks, Tripod's story13 through the community. Many people came to the clinic just to14 this special cat. They found his presence very15, with some even saying he helped reduce their stress or even blood pressure. Tripod's story proved that Dr. Godfrey had made a right decision and even disabled animals could create a far-reaching impact on humans.

Figuring out if something is true or false is a tough task in communication. That's why many people worry about being tricked easily. "My friends say I'm too naive," a reader told me. "How can I stop being so easily fooled?"

I can't help but wonder if our reader's friends are being a little too strict. When we try to tell if someone is lying, we're usually just guessing.

During face-to-face talks, we often depend too much on body language, facial expressions, and the way people speak. This makes us think we're better at spotting lies than we really are.

Lies take effort to make up, and words can show that. Researcher Aldert found that liars use fewer details than those telling the truth. They talk about fewer problems or small differences, and give fewer ways to check their stories.

Still, we shouldn't become too doubtful. A study by Sarah Ying Zheng showed that people who lie a lot often doubt others the most. This "self-projection" makes it hard for them to understand why others do things.

Surprisingly, the most trusting people can also be the least easily fooled. In 2010, researchers asked people how much they believed in human kindness. Then, the volunteers watched videos of people telling truths or lies. The less trusting people were worse at telling who was lying and who was telling the truth.

No one wants to be made a fool of. While it's good to be a bit doubtful, it's often okay to trust people until we have a reason not to.

A. Instead, we should focus more on what people say.

B. However, experts suggest trusting your first impression.

C. This is especially a problem for people who lie themselves.

D. But these things aren't good signs to tell if someone is lying.

E. Their lack of trust made them bad at judging people in general.

F. Countless people believe they can easily detect lies through senses.

G. Many studies have shown that most of us aren't good at finding out lies.

Scientists have been aware of chorus waves in space for years. However, the latest study brought a big surprise. The researchers found that these waves exist as far as 100,000 kilometers away from Earth. This is the greatest distance at which chorus waves have ever been detected from a planet.

Chengming Liu, a study writer from Beihang University, stated in an email, "Chorus waves are one of the strongest and most significant waves in space." Allison Jaynes, a space physicist not participating in this study, commented, "This opens up a lot of new questions about the physics that could be possible in this area."

The newfound chorus waves were detected in an area where Earth's magnetic (磁的) field extends. Scientists didn't expect to find them there. Now, they're eager to figure out how these unique waves form. Jaynes added, "We surely need to find more of these events."

Scientists still are not sure how chorus waves develop, but they believe Earth's magnetic field is related to it. In the past, radio antennas (天线) detected chorus waves. For example, in the 1960s, an Antarctic research station picked them up. NASA's Van Allen Probes also heard the chirping sounds, but from a closer distance. The most recent chorus waves were detected by NASA's Magnetospheric Multiscale satellites, which were sent into space in 2015 to study Earth and the sun's magnetic fields.

Chorus waves have also been found near other planets including Jupiter and Saturn. The waves can produce high-energy electrons. That means they can be a danger to satellite communications. The researchers said their findings suggest that chorus waves might be found everywhere in the magnetic fields of planets.