外研版八上module3unit2wehaven’tfoundlifeonotherplanetsyetppt课件

外研版八上module3unit2wehaven’tfoundlifeonotherplanetsyetppt课件内容摘要：

…… 我们是唯一的吗。 …… alone与 lonely的区别： (1) alone既可作形容词，又可作副词 ,意为“单独地，独自地”，没有感情色彩。 (2) lonely只作为形容词 ， 意为“孤独的，寂寞的”，具有感情色彩。 He was very lonely after his wife left. 他妻子离开后，他很孤独。 4. prefer life on Mars 更喜欢火星上的生活 prefer表示 “更喜欢” ，相当于 like…better。 (1) prefer to do “更喜欢做某事”； “宁愿做 ……” (2) prefer…to… “ 比起 …… 更喜欢 ……” prefer...to后要跟 名词 、 动名词 ； I prefer reading books to watching TV. 比起看电视我更喜欢读书。 (3) prefer to…rather than… “宁愿 …… 而不愿 ……” They prefer to buy a new car rather than repair it. 他们宁愿去买一辆新车，也不愿去修理。 Put the words in the box in order small → large. galaxy, pla, solar system, star, universe pla star solar system galaxy universe 3 Check the true sentences. 1. The earth is a star. 2. The sun is a star. 3. There is more than one galaxy. 4. Our galaxy is part of the Milky Way. 5. The light from stars has taken a long time to reach us. 6. Scientists have found life on other plas. 7. They have received many messages from space. 8. They’ve visited most of the universe. √ √ √ 4 Answer the questions about the words in the box. 1 Who and what needs air? 2 How often are you alone? 3 Wh。