题目列表(包括答案和解析)
An enjoyable trip
On October 28th, we began our exciting trip to the world-famous sand island—Fraser Island, which is said to be the world largest sand island and it is one of the world cultural heritages (遗产). We were really amazed by the spectacular view there.
The road to the island is really tough and bumpy. The bus driver, who was also our guide was a very strong man. He was optimistic (乐观的) and helpful. I found he was all smiling on the way though the ride was not very smooth. We stopped for several times because the cars in front of us were blocked by sand. The road was completely sand about 50 centimeters high. We were thrown back and forth like taking a rollercoaster (过山车). All of us couldn’t help laughing when we were shaken from side to side. It took us more than an hour to arrive there. I guess this road is one of the most impressive things.
The beach is so wonderful and terrific! This was my first visit to the seaside. The broad sea made me speechless. We were really thrilled by the amazing view. We couldn’t stop taking so many pictures. The bus ran along the beach with the sea water on one side and bushes on the other side. The view outside the bus was really fantastic! The driver told us there were dingoes (野犬) in the bush. When we were sitting on the bus, we kept on searching the faraway bush for a dingo. Unfortunately, we didn’t see one.
The lake is the next destination we went to. This lake which is ringed by white sand beaches lies peacefully on the hill, which is 18 meters above the sea level. The crystal clear water from the rainfall is sparkling (闪光). Male students jumped into the lake without taking off the clothes. They played with water like small children. Nowhere else in the world can you find such a wonderful fairly land.
The forest is the last place we visited. Those towering rainforests grow on sands. There are many varieties of species. Some trees are so tall and have a history of 500 years. Some gum trees are quite strange because their barks (树皮) fall. The driver told us that this was because they wanted to protect themselves from worms or fires. This forest is home to many animals. We could hear bird singing when we were walking in the shade from the trees.
The tour to Fraser Island makes a deep impression on us. It provides us magnificent views. It is well worth a visit.
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It’s surprise that the faraway village has been ______into a famous tourist city in only ten years.
A. divided B. transformed C. made D. broken
During the years after the terrorist attack on the World Trade Center, structural engineers have been trying hard to solve a question that would otherwise have been completely unthinkable: Can building be designed to stand catastrophic blasts (攻击;爆破) by terrorists?
Soon after the terrorist attacks on the twin towers, structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research (MCEER) traveled to ground zero as part of a project
funded by the National Science Foundation. They spent two days beginning the task of formulating (构思) ideas about how to design such structures and to search for clues on how to do so in buildings that were damaged, but still are standing.
“Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center, those buildings that are still standing, but that sustained damage,” said Mr. Bruneau, Ph.D. “Our immediate hope is that we can develop a better understanding as to why those buildings remain standing, while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks,” he added.
Photographs taken by the investigators demonstrate the monumental damage to the World Trade Center towers and buildings nearby. One building a block away from the towers remains standing, but was badly damaged. “This building is many meters away from the World Trade Center and yet we see a column (柱子) there that used to be part of that building,” explained A. Whittaker, Ph.D. “The column became a missile that shot across the road, through the window and through the floor.”
The visit to the area also brought some surprises, according to the engineers. For example, the floor framing (框架) system in one of the buildings was quite strong , allowing floors that were pierced by tons of falling debris (残砾) to survive. “Good framing systems may provide a simple, but reliable strategy for blast resistance,” he added. Other strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails. “We also need a better understanding of the mechanism of collapse,” said A. Whittaker. “We need to find out what causes a building to collapse and how you can predict it.”
A. Reinhorn, Ph.D. noted that “earthquake shaking has led to the collapse of buildings in the past. Solutions developed for earthquake-resistant design may apply to blast engineering and terrorist-resistant design. Part of our mission now is to transfer these solutions and to develop new ones where none exist at present.”
【小题1】The question raised in the first paragraph is one _____ .
| A.that was asked by structural engineers a month ago |
| B.that is too difficult for structural engineers a month ago |
| C.that was never thought of before the terrorist attack |
| D.that terrorists are eager to find a solution to |
| A.was part of the building close to the World Trade Center |
| B.was part of the World Trade Center |
| C.was shot through the window and the floor of the World Trade Center |
| D.damaged many buildings near the World Trade Center |
| A.floors in the faraway buildings remained undamaged |
| B.some floor framing systems demonstrate resistance to explosion |
| C.complex floor framing systems are more blast resistant |
| D.floors in one of the buildings were pierced by tons of debris |
| A.blast engineers should develop new solutions for terror-resistant design |
| B.blast engineering can borrow technologies developed for terror-resistant design |
| C.solutions developed for earthquake-resistant design may apply to terrorist-resistant design |
| D.blast engineering emerges as a totally new branch of science |
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