Question: Write a multi-choice question for the following article: Article: The Golden Gate Bridge in San Francisco, California is one of the world's most beautiful bridges. It is also one of the most visited places in the world. Vehicles cross the bridge an average of 41 million times each year. More than 1,800 hundred million vehicles have used the bridge since it opened more than 70 years ago. The bridge was painted "International Orange" because that color went well with the natural surroundings. The color also is easier to see in the heavy fog that often covers the area. But the Golden Gate Bridge was not named for its orange color. It was named for the body of water that it crosses, the Golden Gate Strait. The Golden Gate Strait is the entrance to the San Francisco Bay from the Pacific Ocean. The Golden Gate Bridge links the city of San Francisco with Marin County,California. Planning for the bridge began in the 1920s when the area around San Francisco was growing. People living in the area needed another way to get to the city besides small ferries . Joseph Strauss was the chief engineer for the project. Work began in 1934. Mr.Strauss demanded the strongest safety protections in the history of bridge building. These included the first use of "hard hats" to protect the workers' heads and special glasses to protect their eyes. A special safety net was suspended under the bridge. This net saved the lives of 19 men during the construction. However, 11 other workers were killed when they fell from the bridge through the net. Still, this was a new safety record for the time. The Golden Gate Bridge opened in 1937. It extends 1,280 meters across the water. The total length is 2,737 meters. It was the largest suspension bridge in the world until 1964. That is when the Verrazano Narrows Bridge opened in New York City. Today, the Golden Gate Bridge is the ninth longest suspension bridge in the world.
Answer: Question: The purpose of suspending a special safety net is to _ .Options:A protect the environmentB make construction easierC prevent workers from fallingD save building materials from fallingAnswer:C

Question: Write a multi-choice question for the following article: Article: Geologists have been studying volcanoes for a long time.Though they have learned a great deal,they still have not discovered the cause of volcanic action.They know that the inside of the earth is very hot,but they are not sure exactly what causes the great heat.Some geologists have thought that the heat is caused by the great pressure of the earth's outer layers.Or the heat may be left from the time when the earth was formed.During the last sixty years scientists have learned about radium,uranium,thorium,and other radioactive elements.Many scientists now believe that much of the heat inside the earth is produced by radioactive elements. Whatever the cause of the heat may be,we do know that the earth gets hotter the farther down we dig.In deep mines and oil wells the temperatures rise about 1degF for every 50 feet.At this rate of the temperature 40 miles below the earth's surface should be over 4 000deg.This is much hotter than necessary to melt rock.However,the pressure of the rock above keeps most materials from melting at their usual melting points.Geologists believe that the rock deep in the earth may be plastic,or puttylike .In other words,the rock yields slowly to pressure but is not liquid.But if some change in the earth's crust releases the pressure,the rock melts.Then the hot,liquid rock can move up toward the surface.
Answer: Question: According to the passage, _ prevents most rock from melting at its usual melting points.Options:A the pressure of the rock itselfB the pressure of the rock aboveC the pressure of the earth's outer layersD the heat given out by some radioactive elementsAnswer:B

Question: Write a multi-choice question for the following article: Article: It's always great to hear news about wildlife returning to where they once lived. For the first time in 8 years the small blue --- British's smallest butterfly--- has been seen back at a nature reserve in Hertfordshire. This nature reserve has had a lot of work done recently in order to help butterflies. Management of the land has included bringing in sheep to keep the grass under control in a more natural way and planting wild flowers for butterfly species. The nature reserve is home to a number of butterfly species. In fact the way that this reserve has been managed means that it is probably the best reserve in Hertfordshire to see butterflies with at least 25 species now living in the area. There are a number of threats to British butterflies and the greatest threat is the loss of their habitat. Changing farming practice has affected British native butterfly species greatly with many more now being at risk. _ A wide species of butterflies will generally mean a healthy environment. The type of land management at the nature reserve in Hertfordshire offers a hope for many species of butterfly to live as usual. Butterflies need all the help they can get at the moment. Although the number of butterflies is beginning to increase, many are still at risk.
Answer:
Question: What can we infer from the passage?Options:A The environment has changed healthier a lot than before.B All the butterflies have returned to the reserve.C There is no threat to the British butterflies.D Over 25 species is living in the reserve now.Answer:A