Some houses are designed to be smart. Others have smart designs. An example of the second type of house won the Award of Excellence from the American Institute of Architects.
Located on the shore of Sullivan’s Island off the coast of South Carolina, the award-winning cube-shaped beach house was built to replace one damaged by Hurricane Hugo years ago. In September 1989, Hugo struck South Carolina, killing 18 people and damaging or destroying 36,000 homes in the state.
Before Hugo, many new houses built along South Carolina’s shoreline were poorly constructed, according to architect Ray Huff, who created the cleverly-designed beach house. Now all new shoreline houses are required to meet stricter, better-enforced codes. The new beach house on Sullivan’s Island should be strong enough not to be damaged by a Category 3 hurricane with peak winds of 179 to 209 kilometres per hour.
At first sight, the house on Sullivan’s Island looks anything but(根本不) hurricane-proof. Its redwood shell makes it look like “a large party lantern” at night. But looks can be deceiving. The house’s wooden frame is strengthened with long steel rods(杆) to give it extra strength.
To further protect the house from hurricane damage, Huff raised it 2.7 meters off the ground on timber pilings(木桩) buried deep in the sand. Pilings might appear insecure, but they are strong enough to support the weight of the house. They also raise the house above storm waves. The pilings allow the waves to run under the house instead of running into it. “The waves of water come ashore at tremendous speeds and cause most of the damage done to beach-front buildings,” said Huff.
Huff designed the timber pilings to be partially concealed(隐藏) by the house’s ground-to-roof shell. “The shell masks the pilings so that the house doesn’t look like it’s standing with its legs pulled up,” said Huff. In the event of storm, the shell should break apart and let the waves rush under the house, the architect explained.
【小题1】After Hurricane Hugo, new houses built along South Carolina’s shore line are required
to .
| A.be easily pulled down | B.look smarter in design |
| C.meet stricter building standards | D.be designed to be cube-shaped |
| A.it is strengthened by steel rods | B.it is made of redwood |
| C.it is in the shape of a shell | D.it is built with timber and concrete |
| A.avoid peak winds of about 200 km/h |
| B.bury stronger pilings deep in the sand |
| C.break huge sea waves into smaller ones |
| D.prevent the waves from running into it |
| A.smooth | B.waterproof | C.easily broken | D.extremely hard |
Here’s an amazing way to get a hard-boiled egg into a bottle, even though the mouth of the boiled is smaller than the egg! What’s more, you don’t even need to touch the egg to get it to go in!
For this experiment you will need:
·a hard-boiled egg
·a glass bottle with a mouth just slightly smaller than the egg (a fruit-drink bottle works well)
·a 8-cm by 8-cm(3-inch by 3-inch)piece of newspaper
·a match
Remove the shell from the egg. Set the egg on the mouth of the bottle to see that the egg does not fit through the mouth.
Light the paper. Remove the egg from the mouth of the bottle and drop the burning paper into the bottle. Before the fire goes out, set the egg back onto the mouth of the bottle. Within a few seconds the egg will squeeze(挤) through the mouth and into the bottle.
As it entered the bottle, the egg may have broken into pieces. This happens when the diameter(直径) of the egg is more than about 0.5 cm(about 3/16 inch) larger than the diameter of the bottle’s opening.
Why does the egg slide into the bottle, even though no one is pushing it? Because the pressure of the air is pushing it. Before the burning paper is put into the bottle, the pressure of the air inside is the same as outside. The burning paper, however, heats the air inside. This causes the air inside to expand. When the egg is placed on top of the bottle, it seals(封住) the bottle. When the fire goes out, the air inside cools. As it cools, the air contracts(紧缩), and the pressure of the air inside becomes less than the pressure outside. Then, the higher outside pressure pushes the egg into the bottle!
【小题1】The best title of this passage can be .
| A.An interesting story | B.The pressure of the air |
| C.Egg in a bottle | D.Egg, bottle and match |
| A.Eggs. | B.Water. | C.Bottles. | D.Paper. |
| A.Because of the burning paper. |
| B.Because the diameter of the egg is too larger than that of the bottles opening. |
| C.Because it is cool inside the bottle. |
| D.Because the pressure of the air inside is larger. |
| A.A match. | B.A fruit-drink bottle. | C.The pressure of the air. | D.The burning paper. |