From egg to butterfly
In the spring, you can see a beautiful yellow butterfly among the flowers. It flutters across the garden seeking honey. To become this matured butterfly, it passes through four stages in its life cycle. They are called egg, larva, pupa, and butterfly.
The cycle begins with egg. Around two days later after mating, the female butterfly lays eggs on the leaves of the plants. A butterfly can lay 450 to 500 eggs at once so that prevent them from being scattered and strewed with the effects of natural causes like wind. The egg is a little long and transparent white color, so it looks like a grain of rice. After 6~7 days later, a worm like creature hatches out of the egg which is light green or yellow colored.
Next is larva stage which is active. The worm is called a larva or a caterpillar. As soon as a caterpillar emerges and crawls out from egg, it usually eats the egg shell first. Then it starts to eat vegetation, flowers, or fruit of the host plant. In this stage, larva grows by molting or shedding their skin several times. Each time it becomes bigger and bigger.
Once a larva became big enough, soon it changes into a pupa. In this third stage which is called pupa, a larva begins to build a cocoon with the string from its body attached to a plant. It will take 3 or 4 days of non-stop working for the new born caterpillar to finish this process. During this period, the caterpillar would turn around itself for thousands of times and secrete approximately 900~1,500 meter long strings.
After a few weeks, by undergoing changes and metamorphoses in the cocoon, finally a pupa turns into a adult butterfly. The length of the pupal stage varies with each species and often depends on temperature. Once the organs have matured, the skin of the pupa splits and the butterfly emerges. After a few hours, the wings expand and the skin hardens, then the adult is able to fly, sip nectar, mate, and lay eggs. Hence a butterfly's life cycle is repeated. The entire process, from egg to butterfly, takes an average of five to six weeks.
Although most butterflies can live for two months to one year, they have to undergo this four stage overcoming the dangers from nature or natural enemy. To become a butterfly, they have to change constantly through the metamorphosis process. Then, finally they become a beautiful, charming butterfly.
May 31, 2008
Life cycle of a butterfly
May 24, 2008
Badminton and tennis
Badminton and tennis
These days, the importance of health is highly growing. Many people run and walk in the park or mountain to keep their health. Others play sports in the playground and sports center like swimming, aerobic, golf, skate, in-line skates, etc. Among these sports, I prefer badminton and tennis. These are not so much hard to learn and not to pay much money to enjoy. Also, these two are safe sports even woman, seniors, and children can play easily.
Badminton and tennis are both a game played by two or four players on a rectangular court. To play these games, at first, they need a racket : an oval bat with strings across it to hit a ball. Besides, they need a ball which called a shuttlecock in badminton or tennis ball. Finally, they need a net across the middle of the court. Players get a score points by hitting a ball over a net. So these are called as a racket sports.
Even they seem to be very similar to play, there are differences between them. Badminton is more easier to learn than tennis. To play tennis, you have to learn a lot of rules such as the way of serving, grips and position. For example, in tennis, different grips like forehand and backhand generally are used for different types of spin and shots. Of course, similarly, there is many kind of rules in badminton. But we generally don't have to pay to learn badminton. We just learn it from family or friends for short time. Otherwise, we have to go to a tennis court to learn it from a coach for several months form the basic skills.
The net of badminton court is higher than that of tennis. The player could be lost score once the shuttlecock has struck the ground. The player should send it higher to opposite site over the net. In contrast, tennis player hits a ball so lower that it could hit the opposite ground. That's why tennis court's net is much lower than that of badminton.
Badminton can be played more often anywhere than tennis. People can play badminton without net. Because of that, tennis is played frequently outdoors as a casual recreational activity, often as a garden or beach game. On the other hand, you can hardly see the people who play tennis in the park or beach. They have to go to a tennis court to play it.
Among the sports that we can play easily and not to pay for it, racket sports is really good one for our health. Especially badminton and tennis are very popular. However, I think badminton is the better of the two. Since badminton can be played anywhere and more easy to play than tennis, I really prefer badminton. For that reason, my family usually play badminton when we go for a walk in the park. I really have fun to play badminton with my daughter.
May 20, 2008
Dates in Detroit History
Dates in Detroit History
1701 Antoine de la Mothe Cadillac founded Detroit after he landed on what is now the location of the Civic Center in the downtown area. Detroit became a fur-trading center.
1760 Britain took command of Detroit as a result of the French and Indian War.
1796 American forces took command of Detroit and it became a U.S. city.
1802
Detroit held its first election.
Detroit was incorporated as a town.
1805
Detroit burned to the ground. All but one of the town's 300 buildings was destroyed.
1815 Detroit was incorporated as a city.
1824 Detroit's first mayor, John R. Williams, was elected.
1837
Michigan was admitted to the Union as the 26th state.
Detroit became an important station on the Underground Railroad.
1843 The first schoolhouse is opened by the Board of Education.
1850 Detroit's leading industry manufactured stove and kitchen range.
1851 Hog Island was officially renamed Belle Isle after Lewis Cass' daughter, Belle.
1872
Elijah McCoy, an African American inventor, patented the automatic locomotive Lubricator, which was so good that railroad men asked for "the real McCoy."
1879 Belle Isle opened as a public park.
1889 The Hammond Building, Detroit's first skyscraper, was built.
1890s Detroit built more ships than any other American city.
1896
Charles Brady King introduced Detroit's first automobile. Three months later, Henry Ford completed his first car, the Quadricycle.
The Detroit Metro Convention & Visitors Bureau was founded.
1897 Sebastian S. Kresge opened his first dime store, which later became Kmart.
1901 The first concrete road in the world was built in Detroit.
1903 Ford Motor Company was formed.
1908
Henry Ford introduced the Model T. It became the first low-priced, mass-produced automobile with standard interchangeable parts.
General Motors was formed.
1920
Due to the automobile industry, the city's population rapidly increased. Nearly two million foreign-born residents were now living in Detroit.
1929 The Ambassador Bridge opened.
1930 The Detroit-Windsor tunnel opened.
1934 Wayne University was formed and renamed Wayne State University in 1956.
1935
The United Automobile Workers of America (UAW) was formed.
The Detroit Tigers won their first World Series.
The Detroit Lions won their first National Football League championship.
1936 The Red Wings won their first Stanley Cup.
1937 Joe Louis Barrow won the world's heavyweight boxing championship.
1940s
Detroit was known as the "Arsenal of Democracy," producing a fifth of the world's armament during World War II.
1947 Detroit's first commercial television station, WWJ-TV, began broadcasting.
1950 Detroit began constructing its freeway system.
1951 The city celebrated its 250th anniversary.
1954
The nation's first shopping mall (Northland Center) opened in nearby Southfield, Michigan.
1960s
Detroit became Hitsville USA with Detroit musical talent capturing the hearts of a generation.
1960
Cobo Hall (now Cobo Conference/Exhibition Center), Detroit's major convention center, opens to rave reviews.
1963
Rev. Martin Luther King Jr. gave his "I Have a Dream" speech in Detroit two months before its famous delivery in Washington, D.C.
1967
New Detroit was founded as the United States' first urban coalition. It was organized to improve education, employment, housing and economic development in the city.
1970
Detroit Renaissance, which consisted of a group of business leaders, was founded to help plan Detroit's future.
1971
Henry Ford II, head of Detroit Renaissance, announced plans for the construction of the Renaissance Center.
1974
Coleman A. Young became the first African-American mayor and was the
longest serving chief executive of Detroit, holding the position for twenty years.
1977
The Renaissance Center, the largest office complex in Michigan, opened as a symbol of Detroit's rebirth.
1987
The Detroit People Mover, an elevated train system, began operations.
Pope John Paul II visited Detroit.
1996 In November, Michigan voted to allow the operation of three casinos in Detroit.
1999
The Detroit Tigers played their final baseball game in the classic Tiger Stadium, which opened in 1912.
2001 Detroit celebrated its 300th birthday.
2002
The Detroit Lions football team began playing in the new, state-of-the-art Ford Field, returning to downtown Detroit after 27 years in suburban Pontiac.
2004
The "restored" Campus Martius Park opens in downtown Detroit featuring an ice skating rink.
2005 Detroit hosts the Major League Baseball's All-Star Game at Comerica Park.
2006 The city hosts Super Bowl XL.
May 18, 2008
Active sentence to Passive sentence
Changing Active sentence to Passive sentence
(Active sentence)
Good morning, everyone! Today, I want to introduce our new product to you. I'll talk about this product for 10 minutes. I'll take questions at the end of my talk.
What I want to introduce to you is a solar phone. The solar phone uses solar energy to operate. This can reduce electronic energy by using solar energy. So we can down the cost of the phone. We will release this item at the department store at first. Also people can order it by internet in advance.
I expect this solar phone make a big profit. I believe firmly this solar phone can hit the market strongly. Thank you!
(Passive sentence)
Good morning, everyone! Today, our new product will be introduced to you. This product will be talked about for 10 minutes. Questions will be taken at the end of my talk.
A solar phone is what I want to introduce to you. It is used solar energy to operate. It can be reduced electronic energy by using solar energy. So the cost of the phone can be down. It will be released at the department store at first. Also it can be ordered by internet in advance.
This solar phone is expected to make a big profit. It can be believed firmly to hit the market strongly. Thank you!
May 17, 2008
If I were single
If I were single, how would be my life different?
Marriage life for a woman is very tough. In my case, before I got married, I did all the things what I want. I met my friends anytime, spent money for myself and relaxed whenever I wanted to. But now I am always busy doing housework and taking care of my family. My head is full of thinking about my family. Sometimes I envy my friends who is not married. It would be happy to imagine myself living in a single woman.
I would take a lot of rest at home if I were single. For example, at legal holidays like new year and Chuseok, I would not busy preparing foods and buying presents for my family in law. All I would do is to enjoy delicious food and go to a movie. I would travel more frequently alone. I would not have to worry about family and could enjoy my trip more.
At my work, I could devote myself on my job. I could overwork everyday, even I could work late on the weekend. I could eat out with my colleagues every dinner that makes me easy to get a lot of latest information around my work. I would not prepare breakfast for my family so I could come to my office early in the morning and study English before I start working. I might not to worry about transferring because I would ready to do hard work at any division.
I would not have to take care of my family so I would have less responsibilities. I could do anything what I want that means I could change my job. I could be a tour conductor which I eager to become. My activities could be wide enough that I could have a lot of opportunities to meet various kind of people. I could have a lot of time to read books, I would became more intelligent.
It is certain that my life as single would be enjoyable much more than now. My behavior would be more free and I could do more what I want. But when I recall my time as single, I envied married friends very much at that time. I have matured a lot though marriage. Although there would be an opportunity to change my life to be single, I would never take it because my family is so precious to me at present.
May 11, 2008
Mobile Phone
Modern technology made people very comfortable in various ways.
Mobile phone is one of the technology which changed our life definitely comfortable. It is a useful personal electronic device that people can carry it anywhere for communication.
Mobile phone has many functions. At early time of its release, mobile phone has simple function such as making or receiving a call, text messaging. But these days it's functions are more and more diverse. In addition to music(MP3) playback, it has memo recording, game, email, radio, planner, and camera. It has ability to watch streaming video and TV. We can watch TV in the subway.
Through this various function of mobile phone, we can communicate easily regardless of place and time. Besides, by carrying mobile phone, we can do many thing through its multitasking function. We can watch movie waiting for someone, or calculate money at shopping. Futhermore it guarantees the security especially for the children and seniors in case of emergency. Parents buy mobile phone with GPS(Global Positioning System) for their children's safety. In case of kidnap, police could find out the chid's current position by GPS.
The physical characteristics of mobile phone are small and handful, various color, flat rectangular, small screen and buttonish. According to the function of TV and video, its screen is getting bigger nowadays. The design of mobile phone become various and fashionable. People decorate it with accessories such as bead, plastic case, stickers.
Before mobile phone, we used wireless telegraph or beeper which were one side communication. After mobile phone, we communicate both side at same time. The world's famous manufacturers of mobile phone are Nokia, Motorola, Samsung, etc.
We can't imagine living without mobile phone. Like family or friend, it's always with us all the time. It's small and light, but its functions are enormous and diverse. Mobile phone is not only useful but also entertaining. That's why youngsters eager to receive mobile phone for their birthday present.
May 2, 2008
Last weekend
Last saturday,
I went to a shopping mall with my family to buy groceries in the evening. I bought a lot of groceries because it's been a long time to be there. My dauter likes to sitting in the shopping cart, but while shopping, she had to give up to sitting in it.
After that, we went to Japanese restaurant for dinner. It was very delicious. My husband loves sushi very much, but I and my daughter didn't before. But nowadays,my daughter who is 9 year old likes sushi very much.
On Sunday, my family took a walk in the park. We played badminton together. The weather was perfect. It was really fun. 