成才之路 英语路漫漫其修远兮 吾将上下而求索人教版 必修 3Astronomy： the science of the starsUnit 4第三课时 Using LanguageUnit 4课堂要点探究 2课堂达标验收3课前新知预习1课 时 作 业4课前新知预习v .单词速记v 1 _(n.)万有引力；重力v 2 _(n.)卫 星；人造 卫 星v 3 _(n.)气候v 4 _(vi. now that gravity has changedv .课文理解v Step 1 Fast Readingv Scan the passage and then choose the best answers according to the passage.v 1 The passage mainly talks about _.v A what the moon isv B my visit to the moonv C the differences between the earth and the moonv D Li Yanping, my friend, who is an astronaut
