2011届高考英语二轮专题复习课件（新课标）：阅读理解专题3 新闻报道类.ppt

专题 三 │ 专题预测 The five planets that the scientists are most certain about are large—up to 25 times the size of Earth. According to Christophe Lovis, one of the scientists behind the finding, these five planets are similar to Neptune(海王星). “They’re made mainly of rocks and ice，” he said. “They’re probably not suitable for people to live in.” 专题 三 │ 专题预测 There are also signs of two more planets. One is thought to be similar to Saturn(土星). The other may be the smallest exoplanet ever spotted. It’s only slightly larger than Earth. Because it’s so close to its star, the small planet takes just over a day to orbit it. 专题 三 │ 专题预测 Spotting faraway planets is challenging. The blazing light given off by the star they orbit makes the planets hard to see. That is why we cannot yet be 100% sure about these seven planets. The scientists haven’t actually seen them. Instead, they used a powerful telescope to study the star for six years. The star gave the scientists clues about the planets that orbit it. 专题 三 │ 专题预测 According to Alan Boss, a scientist who wasn’t involved with the study, this method is best for “finding the big guys”. But, he said, the discovery shows spotting smaller planets is also possible. “The really nice thing about finding systems like this is that it shows there’re many more out there，” says Boss. “Mother Nature really had fun making planets.” 专题 三 │ 专题预测 (　　)1.It is known from the passage that exoplanets ________. A．are planets orbiting stars other than the sun B．refer to all the planets orbiting the sun C．are all stars outside our solar system D．include all the planets ever spotted in the universe 专题 三 │ 专题预测 (　　)2.In another solar system discovered by the European scientists, ________. A．the star orbited by seven planets is over 100 light years from the sun B．all the seven planets are much larger than our