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　　1.單選題

　　[概括大意] It is often thought that science fiction is a fairly new development in literature， but its ancestors can be found in books written hundreds of years ago. These books were often concerned with the presentation of some form of ideal society， a theme which is still often found in modern stories.

　　The main idea of this paragraph is__________.

　　A、Science Fiction is a Fairly New Development in Literature

　　B、Origins of Science Fiction

　　C、The Theme of Science Fiction

　　D、Science Fiction Has a Short History

　　正確答案：B

　　答案解析：從第一段話可以看出這段文字介紹了科普小說的起源。因此選擇B。

　　2.單選題

　　[填句補文]Doctors believe that secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers often breathe in the smoke from other people‘s cigarettes.________. The US Environmental Protection Agency reports that about 53，000 people die in the United States each year as a result of exposure to secondhand smoke.

　　A、The risk is even higher for children who live in homes where both parents smoke.

　　B、In the United States，nine million children under the age of five live in homes with at least one smoker.

　　C、This smoke is called secondhand smoke.

　　D、No one knows for sure why Mr. Gilson has lung cancer.

　　正確答案：C

　　答案解析：前一句提到，不吸煙者時常吸入他人香煙中冒出的煙，接下來應首選對此煙加以定義的句子。

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