Question

完形填空

阅读下面短文，掌握其大意，然后选择方框内所给单词或短语的适当形式填空。方框内有多余的词或短语。

　　The invention of the camera goes far into the past. In the 1500s, people experimented with cameras that made pictures. But it was 1 the early 1800s that they found a way to make the pictures permanent (耐久的). Even then, photography was a new field. Most 2 had their pictures taken by a photographer. People did not own cameras because taking pictures and developing the film was too 3 .

　　In 1884, George Eastman changed photography by inventing a kind of film that fit into a small camera. 4 the new film was easy to use, many people began to buy cameras. When they 5 up their film, people returned their cameras to the factory. There, the film was developed, and round pictures were printed. Then more film 6 the cameras, 7 were sent back to the owners, along with their pictures.

　　Eastman's camera made 8 easy to take pictures. Today's cameras are even easier to use, and people can put in their own film. Photography has become a growing hobby.

　　There are also many new jobs in the field of photography. One of the most important kinds of work is in news reporting. Newspapers, magazines, and television all need pictures to tell their stories. Photographers aid scientists by 9 pictures through microscopes (显微镜) and telescopes (望远镜). Deep-sea divers take pictures 10 ocean plants and animals, while astronauts (宇航员) take their cameras into space. People find new uses for the camera every day.

Answer 1

答案：
解析：

1．not until 　　2．families 　　3．difficult 　　4．Because 　　5．had used 　　6．was put into 　　7．which 　　8．it 　　9．taking 　　10．of