Write the main ideas
of the text in three sentences.
Until the 20th century, constructions of tall buildings were limited because people couldn’t climb up so high and the buildings were made of bricks and stones.
Two major inventions made it possible to build taller buildings, a strong vertical framework of steel beams and safety elevators.
Design problems to build tall buildings are space for elevators and necessity to bring things, air and electricity up and down in, and the safety against strong winds.
Until the 20th century, constructions of tall buildings were limited because people couldn’t climb up so high and the buildings were made of bricks and stones.
Two major inventions made it possible to build taller buildings, a strong vertical framework of steel beams and safety elevators.
Design problems to build tall buildings are space for elevators and necessity to bring things, air and electricity up and down in, and the safety against strong winds.
Few buildings were taller than ten stories until the end of the 19th century.
返信削除Now, we can build skyscrapers taller than ten stories due to two major inventions what are steel beams and safety elevators.
Allways skyscrapers have some design problems but we don't know it's the limit of the skyscrapers or not.
Well summarized.
削除3. What are "some design problems"?
In the 19th century, new buildings were taller than ten stories because it was difficult to climb high, and use bricks and stones as structure.
返信削除There are two reasons why higher buildings could be built, which is using steel for beams and walls, and the safety elevators to lift people were made.
But skyscrapers still have several design problems such as using much space, carrying water, bringing electricity, being safe of high story and so on.
Well summarized.
削除1. Until, not in the 19th century
2. ... taller buildings started to be built, one is ... and the other ...
After the 19th century, new buildings were taller than ten stories because before the 19th century, it was difficult to climb high, and use bricks and stones as structure.
削除There are two reasons why taller buildings started be built, one is using steel beams for walls, and the other is safety elevators to lift people were made.
But skyscrapers still have several design problems such as using much space, carrying water, bringing electricity, being safe of high story and so on.
After the 19th century, new buildings became taller than 10 stories because it had been difficult to climb high and they had used bricks or stones for structure.
削除There are two reasons why taller buildings started to be built, one is using steel for beams and walls, and the other is making the elevators possible to lift people safety.
But skyscrapers still have several design problems such as using much space, difficulty of carrying water, bringing electricity, being safety on high stories and so on.
Untill 19th century, only few buildings had over ten stories becouse of less of technology.
削除There are two reasons why taller buildings started to be built, one is invention of
strong steal for wall and beams and the other is safty elevators.
But there still have design problems such as using much space, carrying water, bringing electricity, being safe of high story and so on.
Until the 19th century, few buildings were taller than ten stories because it was difficult to climb high on stairs, and using bricks and stones as structure.
削除There are two reasons why higher buildings started to be built in the 19th century, one is using steel for beams and walls, and the oher is safety elevators to lift people were made.
But skyscrapers still have several design problems such as using much space, carrying water, bringing electricity, being safe of high stories and so on.
Until, not in the 19th century, new buildings were taller than ten stories because it was difficult to climb high, and bricks and stones as structure.
削除There are teo reasons why taller buildings started to be built, one is using steel for beams and walls, and the other is the safty elevetors to lift people were made.
But skyscrapers still have several design problems such as using much space, carrying water, bringing electricity, being safe of high storey and so on.
Until the 19th century, buildings weren’t able to be made tall because of climbing hard, using weak supporting like bricks and stones as structures.
削除There are two reasons why taller buildings started to be built, one is using steel for beams and walls, and the other is the safety elevators.
But skyscrapers still have several design problems such as using much valuable space and needing complex systems of functions and so on.
Until the 19th century,new buildings were taller than ten stories because it was difficult to climb high,and use bricks and stones as structure.
削除There are two reasons why higher buildings started to be built,one is using strong steel for walls and beams,and the other is the safety elevators to lift people were made.
But sky scrapers still have design problems such as using much space, carrying warer up and down,bringing electricity and so on.
Until the 19th century, few buildings were taller than ten stories because humans were unable to climb too high and also the materials like bricks and stones weren’t strong enough to sustain tall structures.
削除Two technologies made it possible to construct taller buildings, one is steel beams and the other is elevators.
However, there still are challenges to design tall buildings, such as space limitation, water supply and utilities.
Until the 19th century, few buildings were taller than ten stories because it was difficult to climb high.
削除There are two reasons why taller buildings started to be built, one is using steel for beams and walls and the other is the safety elevators
becometo be able to lift people.
But skyscrapers have design plobrems such as using many spese, carrying water, blinging electricity, designing to be safe.
Until the 19th century, only some buidings were taller than 10 stories but now there are a lot of skyscrapers.
返信削除Also the construction of taller building was able to build because of using new design, such as steel beams and safty elevators.
However there were some problem that there are few areas for offices or apartments because necessary structures are using space such as elevators, electronicity, water pipe, air conditioners, and so on.
Well summarized.
削除3. There are problems to construct tall buildings, such as ...
Until the end of the 19th century, few buildings were taller than ten stories because there were not elevators and process to build tall buildings.
返信削除A new process for making steel and safefy elevators made possible to build tall buildings.
However, there are some design problems, for example elevators use valuable place, skyscrapers need complex system for electricity and so on.
Well summarized.
削除2. ... made it possible to ...
Try to use your own words.
Until 19 century there were not tall buildings because of no elevator and weak supporting.
返信削除19th century, steel beams and safety elevators were invented and, they made the construction of taller buildings possible.
However, skyscrapers have some design problems that elevators need valuable space, tall buildings need machinery to pump up and waste water and have complex systems of function.
Well summarized.
削除2. Until the 19th century, there weren't many ...
3. In the 19th ..., the invention of ... , and they ...
Try to use your own words.
Constraction skill has developed for 5000years but it is not easy to constract buildings that have over ten stories untill recent century.
返信削除In 19th century, strong steel and safty elevators were invented and they make possible to lift people and keep them safe in higher place.
However, it is difficult to design complex systems like electricity equipment and also space for human activity become smaller as higher stroies so that constract skyscrapers can't always say good.
1. construction skill=> technologies to build ...
削除2. made it possible to ...
3. too long and confusing.
Until the end of 19th century, few buildings were taller than ten stories but many skyscrapers constructed now.
返信削除The tall buildings can be constructed because new process was used to create strong beams of steel and the safety elevator was made.
However, the tall building has many problem such as the elevator use space inside it, it has complex systems for bringing electricity and it should be designed to be safe.
Well summarized.
削除2. ... started to be constructed due to new technologies such as ...
3. too many clauses in a sentence, unclear and confusing.
Ancient Egypt has a tallest building which couldn't live or work inside but latest tall building can live and work inside.
返信削除Two major inventions make possible to constraction of taller buildings by creating strong beams of steel and safety elevators.
But still, tall buildings have design problems such as bringing electricity to the high stories and effect of blowing strong wind to the high stories.
Well summarized.
削除1. => Until the 19th century, there ...
2. ... made it possible to ...
Early buildings which were made of very thick or vertical piles of brick s or stones were not able to construct taller buildings.
返信削除Creating strong beams of steel and safety elevetor enabled to construct them .Sky crapers which are very tall buildings have design problem such as considering how to put the elevetor inside buildings, pump water up and down,bring electorictiy and so on.
Well summarized.
削除1. Early buildings ... construct taller buildings<=?????
2. ... construct taller buildings.