Come and join us to celebrate his birthday.

    It's a good idea for families to talk about what they would do to escape（逃跑，逃离）a fire. You'll want to talk about escape plans and escape routes，so let's start here.

    An escape plan can help every member of a family get out of a burning house. The idea is to get outside quickly and safely. Smoke from a fire can make it hard to see where things are，so it's important to learn and remember the different ways out of your home.

    If you live in an apartment building，you'll want to know the best way to the stair or other emergency exits. If you're in a room with the door closed when the fire breaks out，you need to take a few extra steps：

    Check to see if there's heat or smoke coming in the cracks(裂缝) around the door.

    If you see smoke coming under the door—don't open the door!

    If you don't see smoke—touch the door. If the door is hot or very warm—don't open the door!

    If you don't see smoke—and the door is not hot—then use your fingers to lightly touch the doorknob(门把手)．If the doorknob is hot or very warm—don't open the door!

    If the doorknob feels cool，and you can't see any smoke around the door，you can open the door very carefully and slowly. When you open the door，if you feel a burst of heat，or smoke pours into the room，quickly shut the door and make sure it is really closed. If there's no smoke or heat when you open the door，go toward your escape route exit.

    There are about 5,000 different kinds of ladybugs(瓢虫)in the world. They are also known as lady beetles or ladybird beetles. They come in many different colors and patterns, but the best-known in North America is the seven-spotted ladybug, with its shiny, red-and-black body.

    In many cultures, ladybugs are thought to be good luck. Most people like them because they are pretty, lovely and do no harm to human beings. But farmers love them because they eat aphids and other plant-eating pests. One ladybug can eat up 5,000 insects in its lifetime!

    Most ladybugs have dome-shaped bodies with six short legs. Depending on the kind, they can have spots, stripes, or nothing at all. Seven-spotted ladybugs are red or orange with three spots on each side and one in the middle. They have a black head. Ladybugs are colorful for a reason. They tell the enemy: "Eat something else! I taste terrible." When threatened, they may play dead. Birds are ladybugs' main predators(天敌), but they are also eaten by frogs, spiders, and dragonflies.

    Ladybugs are happy in many different places, including grasslands, forests, cities, suburbs, and along rivers. Seven-spotted ladybugs are native to Europe but were brought to North America in the mid-1900s.

    Ladybugs are most active from spring until fall. When the weather turns cold, they look for a warm place to hibernate, such as in rotting logs, under rocks, or even inside houses. These hibernating places can have thousands of ladybugs.

    The name "ladybug" was given by European farmers who prayed to the Virgin Mary when pests began eating their crops. After ladybugs came and wiped out the invading insects, the farmers named them "beetle of Our Lady". This later was shortened to "lady beetle" and "ladybug".

    Medicine is the most noble of all the arts, but owing to the ignorance of those who practice it, and those who inconsiderately form a judgment of them, it is now far behind all the other arts. Their mistake appears to me to arise principally from the fact that there is no punishment for the practice of medicine except disgrace, and that does not hurt those who are familiar with it. Such persons are like the figures introduced in tragedies, for as they have the shape, and dress, and appearance of an actor, but are not actors, so also physicians are many in title but very few in reality.

    Whoever is to acquire a competent knowledge of medicine ought to process the following advantages: a natural character; instruction; a favorable position for the study; early tuition; love for labor; leisure. First of all, a natural talent is required, for Nature leads the way to what is most excellent; then instruction in the art takes place, which the student must try to adopt by reflection, becoming an early pupil in a place well adapted for instruction. He must also bring to the task a love of labor and perseverance to ensure the instruction takes root.

    Instruction in medicine is like the culture of the productions of the earth. For our natural character, is, as it were, the soil; the principals of our teacher are, as it were, the seed. Instruction in youth is like the planting of the seed in the ground at the proper season. Diligent study is like the cultivation of the fields; and it is time which passes on strength to all things and brings them to maturity

    Having brought all these essentials to the study of medicine, and having acquired a true knowledge of it, we shall thus, in travelling around, be respected physicians not only in name but in reality. Inexperience is a bad trait, and does harm to those who possess it, nurturing either timidity or audacity(胆大安为). For timidity reveals a want of powers, and audacity a lack of skill. Physicians who are eager for power or those who are undertrained are not a blessing to a community.

    Those things which are sacred or noble, are to be delivered only to sacred persons; and it is wrong to import them to the profane until they have been initiated in the mysteries of the science.

English businessman Richard Branson made history on July 11, 2021 as he and three other crewmates became the world's first space tourists. The flight was made by a spacecraft named VSS Unity that was built by Branson's company, Virgin Galactic. The flight lasted slightly more than an hour, and took Branson and crew to an altitude（海拔） of 53. 5 miles above the Earth, just a little above the boundary（边界） of space which lies 50 miles above the Earth.

At that height, the atmosphere turns into the black of outer space and the Earth becomes a bent ball of blue. Travelers also exhibit weightlessness as there is no gravity, the force that keeps our bodies walking on the Earth's surface. Therefore, Branson and his fellows were able to float around in VSS Unity while enjoying the views. They were able to do that for three minutes before the spacecraft began its downward journey. It landed back at Virgin Galactic's space port in New Mexico, United States, which is the same place from where it took off 90 minutes ago.

On landing back, Branson said, "I have dreamt of this moment since I was a kid but honestly, nothing could prepare you for the view of the Earth from space. It was just magical. I'm just taking it all in, and it's unreal."

July 11's flight is the start of space tourism for one and all. In early 2022, customers who could afford a ticket for a quarter of a million dollars could line up for a seat on a trip to space. And guess what—they will have a choice of spacecraft. Jeff Bezos, who owns a famous company, is all set to launch himself into space on July 20 on board a spacecraft built by his new branch company Blue Origin. Blue Origin will also carry tourists to space.