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Tai Chi is often described as "mediation in motion". There is (grow) evidence that this mind-body practice which originated in China as a martial art, has value in treating or preventing many health problems.

the fact that Tai Chi is slow and gentle and doesn't leave you breathless, it deals with the key components of (fit)— muscle strength, flexibility and balance. Tai Chi improves balance and, according to some studies, (reduce) falls. Proprioception (本体感受) — the ability (sense) the position of one' s body in space — declines with age. Tai Chi helps train this sense and also (great) improves muscle strength and flexibility, which makes easier to recover from a stumble (绊倒). Fear of falling can make you more likely to fall. Some studies have found that Tai Chi training helps relieve that fear.

Tai Chi is very safe, and no fancy equipment (need), so it's easy to get started. Don't be frightened by the names. Names like Yang, Wu, and Cheng are given to different (branch) of Tai Chi, in honor of people who designed the sets of movements called forms. In some forms, you learn a series of movements, while others focus more on breathing and meditation. Finding the very approach matches your interests and needs is the key.

The day after she moved in, she called me to2 about the food nearby. "The pizza was like rubber. I couldn't3 it." "Mom, you're complaining to me. Wouldn't it make more sense to tell someone who can4 the problem?" We hung up. This was only her second day here! And week after week, Mom found more to complain about.

When with my friend Beth, I spent 20 minutes sharing how Mom's attitude5 me. "She seems6 . After everything Kevin and I do for her, all we hear is what she doesn't like." As the words spilled from my lips, I realized that I'd developed the same7 of complaining that annoyed me so much in Mom.

I decided to keep a better watch on my8. Things went fine for a few weeks. But soon I felt powerless to9 by myself and couldn't help complaining to Beth about Mom's10 again.

A few days later, I received a journal from my friend Torry. On the first page, he had written, "Jeanette, I use such a journal every day to11 things I'm thankful for." I wrote three things I was grateful for. When I looked at them,12 filled my heart. Maybe this was it. It was a joyous replacement that helped me overcome the complaining —13 .

Over the next few months, as I continued, I noticed little things I'd14 . Life was handing out gift after gift, including Mom, complaints and all. I couldn't change her; I could only15 her.

●Surround Yourself with Humor

You learn more effectively when you fully expose yourself to a subject. Similarly, you can improve your sense of humor by surrounding yourself with humor. Watch stand-up comedians. Listen to programs that amuse you.Read humorous books. .

●Learn What Amuses You

. We amuse our friends by praising a change they made. However, when it comes to being funny, don't change your sense of humor to amuse other people. Instead, start with what amuses you.Then, if you think the other person will also be amused with it, share it with them.

●Think About Timing and Audience

You don't have to be funny all the time, so don't expect that of yourself. When you catch yourself trying to be funny, slow down. Simply speak slower so you're not as likely to stop and repeat yourself. Try speaking at 60-70 % of your usual rate. .

●

You don't need to seize every single opportunity to be funny. If you're in the middle of a bad joke, just end it. "You know what, now that I'm telling it, it's not as funny as it sounded in my head," can be a bit of an awkward end and hurt your pride a little bit, but it saves everyone time and patience. In the long run, they'll respect your taste.

A. Be Creative, Not Silly

B. Pause in between sentences

C. There's a lot of fun out there

D. You might also do better at work

E. Know When to Pull the Plug on Yourself

F. You can also try your hand in the real world

G. A lot of times, we say things purely to please others

The algorithm relied in part on how the school's students had historically been more successful on the exam. Schools with richer children tended to have better track records, so the algorithm gave wealthy students - even those on track for the same grades as poor students - much higher predicted scores. High-achieving, low - income pupils whose schools had not previously performed well were hit particularly hard. After threats of legal action and widespread demonstrations, the government backed down and canceled the algorithmic grading process entirely. This wasn't an isolated incident: In the United States similar issues troubled the International Baccalaureate exam, which used an opaque (不透明)   artificial intelligence system to set students' scores, prompting protests from thousands of students and parents.

These episodes highlight some of the traps of algorithmic decision - making. As technology advances, companies, governments, and other organizations are increasingly relying on algorithms to predict important social outcomes, using them to distribute jobs, forecast crime, and even try to prevent child abuse. These technologies promise to increase efficiency, enable more targeted policy interventions, and remove human imperfections from decision-making processes. But critics worry that opaque machine learning systems will in fact reflect and further keep shortcomings in how organizations typically function - including by establishing the racial, class, and gender prejudices of the societies that develop these systems.

But there is an even more basic concern about algorithmic decision-making. Even in the absence of systematic class or racial prejudice, what if algorithms struggle to make even remotely accurate predictions about the track of individuals' lives?

And then what? What's the next great leap in humans' quest for the secrets of the universe? When it comes to the near future scientific exploration, there are a few areas of the solar system that will be receiving some special attention.

First off there's Venus, a planet which was a relative paradise (天堂), with oceans and a pleasant atmosphere. Something went terribly wrong there a few billion years ago, and NASA has scheduled a series of missions to explore what exactly is going on there.

At the other end are the gas giants. Several of the satellites of Jupiter and Saturn are covered in thick sheets of ice, and underneath that ice sit oceans of liquid water. NASA has missions planned to investigate those mysterious worlds, hunting for any signs of possible life hidden deep within.

As for us humans, Mars is certainly the grand prize in the coming decades. If we have the adequate drive and funds, we can establish a semi - permanent presence on the red planet, keeping crews working and studying in person on the Martian surface. The other planets of our solar system are not so suitable for people to settle on. Mercury is too close to the Sun for comfort and too far away from the Earth.

Over the coming decades humans expect to see a rise of "space hotels", set up for visiting tourists and scientific explorations. Naturally, turning the space rock into a habitat for humans is not very practical considering our current level of technological maturity, but in my best estimation, it's the next easiest thing to accomplish... after the Moon and Mars, of course.

The weekend after Dad's diagnosis (诊断), Mom had sent the same text to each concerned relative and friend: Jay was diagnosed with Pick's disease. We are going back to the doctor for more information. Then Mom put down the phone, rubbed her forehead, and suggested that we go for a drive. On the interstate, we passed a board with clear red letters: "Fredericksburg peaches, the best fruit you can find in Central Texas." Mom went to negotiate with the stand owner.

Now in our kitchen, the sweet smell of peach juice drifted into the living room and pulled Dad away from the football game on TV.

"Oh! You got peaches?" He eyed the fruit with childish glee (欢快).

"Here," I handed him a knife. "We're making peach pie."

I showed him how to peel the skin off. As I made pie dough, he asked questions: How long does it take to bake? Are you adding sugar? How many peaches? What should I do with the seeds? Showing him how to slice and measure and mix in a calm, firm voice, I suddenly felt grown up.

The summer had reversed our roles; now, I was the adult. I stayed home all summer and cooked his dinner, washed his T-shirts and helped him make phone calls. I stayed up late thinking about him and monitored him like an anxious caretaker.

The same day, before the afternoon drive and peach pie, I had held my tears as I read the diagnosis for Pick's disease: four to ten years, depending on how fast the damaged proteins overpower Dad's brain. I decided then that I would be grateful for just four more years with Dad, enough for him to see me become an adult for real.

注意：

1. 词数80左右；

2. 可适当增加细节，以使行文连贯；

3. 开头和结尾已给出，不计入总词数。

Dear Tom,

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Yours,

Li Hua