—_________. You should finish your English project first.

    Today we went on a school trip to the Natural History Museum. We went there by        (地铁). We all had our        (午饭) boxes in our schoolbags, and we stored them in the entrance hall of the        (博物馆). Because eating in the museum is against the        (规则).

    Then we went        (楼上) to visit the Space Technology Room, It was fantastic! There were spacecraft from all over the        (世界). We weren't allowed to        (触摸) anything, but we could try out some of the        (实验). When we came back to our classroom, we were told to write a        (作文) called "Life in space" for homework. I'm not        (真正地) looking forward to that.

    The B&.O Railroad Museum is in Baltimore. Its site is1to be the birthplace of the American railroad. The museum2the most complete railroad collections in3. On the second floor, there is an 4of station clocks, and a small movie theatre. The museum also has an 5collection of engines, cars, cranes and6railroad equipment.

7the winter of 2002- 2003， heavy8destroyed the roof of the museum and damaged more than half of the9, which may have been the museum's10loss. But there was still some11the insurance(保险) on the museum, though it wasn't clear at first12it would get from that.

    The museum was very13. In the end, although it had14millions of dollars, all of it was replaced by the insurance. The museum had been15until November 2004. Its manager says, "The insurance saved our museum!"

　   The Natural History Museum is close to the Science Museum in South Kensington, London. It houses the largest natural history collection in the world. Seventy million specimens(标本) are kept there, and many of them are displayed(显示) using the latest interactive technology. For example, you can experience an earthquake and meet a life-size blue whale face to face.

      The collection started in 1752 and grew as more and more explorers and scientists left their collections to the museum. In the mid-19th century, a new museum building was designed to house it. The building opened in 1881 is interesting in itself, because all of the decorations are related to natural history topics.

       As well as the curators who look after the museum, there are also 300 scientists working there on different aspects of the natural world, so it is a real, living museum.

Like all of London's main museums, entrance is free, except for special exhibitions, and the opening hours are generous.