Most people around the world are right-handed. This also seems to be true in history. In 1799, scientists studied works of art made at different times from 1,500 B.C. to the 1950s. Most of the people shown in these works are right-handed, so the scientists guessed that right-handedness has always been common through history. Today, only about 10% to 15% of the world's population is left-handed.

Why are there more right-handed people than left-handed ones? Scientists now know that a person's two hands each have their own jobs. For most people, the left hand is used to find things or hold things. The right hand is used to work with things. This is because of the different work of the two sides of the brain. The right side of the brain, which makes a person's hands and eyes work together, controls the left hand. The left side of the brain, which controls the right hand, is the centre for thinking and doing problems. These findings show that more artists should be left-handed, and studies have found that left-handedness is twice as common among artists as among people in other jobs.

No one really knows what makes a person become right-handed instead of left-handed. Scientists have found that almost 40% of the people become left-handed because their main brain is damaged when they are born. However, this doesn't happen to everyone, so scientists guess there must be another reason why people become left-handed. One idea is that people usually get right-handed from their parents. If a person does not receive the gene (基因) for right-handedness, he / she may become either right-handed or left-handed according to the chance and the people they work or live with.

Though right-handedness is more common than left-handedness, people no longer think left-handed people are strange or unusual. A long time ago, left-handed children were made to use their right hands like other children, but today they don't have to.

In the 1900s, Father's Day was created when Louise Smart wanted to show her deep {#blank#}1{#/blank#} to her own father, William Smart, who was lonely when his wife died at giving birth. Mr. Smart raised his six children on a rural farm in a {#blank#}2{#/blank#} state of America. When Louise grew up, she wanted to {#blank#}3{#/blank#} her love to her father. So, in 1909, she advised a day to honor her father in June (the month of her father's birth).

The {#blank#}4{#/blank#} Father's Day followed on June 19, 1910 in Spokane, Washington. In 1924, President Calvin Coolidge showed support of this becoming a national holiday. {#blank#}5{#/blank#}, it wasn't until 1966 when President Lyndon Johnson officially announced(宣布) Father's Day a national holiday to be celebrated on the 3rd Sunday of June.

写作要求：
1. 短文必须包含以上三方面的内容，并适当发挥；

2. 90词左右，文章的开头和结尾已给出，不计入总词数。

Nowadays，we students have some free time on weekends，but how can we make our weekends more meaningful? Here are my suggestions. 

……

In a word，let's try to plan free time well and make our weekends more meaningful. 

Liu Shuangrui, a 15-year-old boy from Liaoning, started to wear glasses at the age of 5. Twenty-five of 38 students in Liu's class wear glasses. Does this sound anything like your class? In fact, about 60 percent of Chinese teenagers are near-sighted (近视的). China has the world's most near-sighted people: the number of near-sighted people became 700,000,000 in 2021, and now it's even larger.

"This is mainly because of the overuse of the eyes when people are studying or working," Wang Ningli, head of a famous Beijing hospital once said. Now, many young people spend lots of time looking at computers or phones every day.

Many people know that reading in the dark light is bad for one's eyes. They try to read only under bright light. However, if the light is too bright, it can also have bad results for one's eyes.

Eating too much candy can do something bad for your eyes as well. Too much candy will result in losing vitamin (维生素) B1. Vitamin B1 is very important for your eyes.

It's not so hard to save eyesight as you expect. Almost everyone can try the following advice.

·Follow the 20 rule. Every 20 minutes, look away from computers or phones you are using. Try not to put them too close to your eyes. Keep your eyes at least 20 cm away from the screens or the desks when you work or study.

·Do some outdoor activities every day.When you are outside, look at things far from you. In this way, your eyes can get relaxed. And getting more sunshine will be useful for your eyes.

Drinking tea is an important part of Chinese culture. {#blank#}1{#/blank#}. The most common types of Chinese tea are as follows.

{#blank#}2{#/blank#}. It has a pale color and a sharp flavor (口味). It is produced mainly in Anhui and Zhejiang. The most popular green tea is Longjing Tea, which is produced near West Lake, Hangzhou.

Red Tea (Black Tea) is the second most popular type of Chinese tea. It can help treat stomachaches. {#blank#}3{#/blank#}. 

Wulong Tea, also known as blue tea, has the advantages(优点) of green and red teas. It has a gentle flavor and can help people lose weight. Tie Guanyin Tea in Anhui and Dongding Wulong Tea in Taiwan are two well-known types of it.

Scented Tea (花茶) is created by mixing tea leaves with flowers.{#blank#}4{#/blank#}. Iasmine (茉莉) tea is the most popular of this kind.

{#blank#}5{#/blank#}

Drink it hot.

Don't drink too much strong tea.

The best time to drink tea is between meals.

Drink tea a couple of hours after taking medicine.

Green tea is the best choice for office workers.