八年级下Unit3基础知识点VIP免费

八年级下 Unit 3重点短语：1.get out 出去；离开 2. take off 起飞3.run away 逃跑；跑掉 4.come in 进来5.hear about = hear of 听说 6.take place 发生7.as ... as 像……一样(eg/ as old as him 像他一样老)8.anywhere = everywhere = here and there 任何地方9.think about 考虑 10. think of 认为11.get up = get out of the bed 起床 12.at the doctor's 在诊所13.every day 每一天 14. everyday adj. 日常的15.most adj. 大部分 16.the most 最多的17. in space 在太空中 18.national hero 民族英雄19.all over the world = in the world 全世界重点语法：过去进行时态 do/does 的过去进行时态形式：(was/were) doing do/does 的过去进行时态的被动语态：(was/were) being done过去将来时态的肯定句、否定句和疑问句形式：肯定句例句：I was walking down the street when a UFO landed.否定句例句：I wasn't walking down the street when a UFO landed.一般疑问句例句：Were you walking down the street when a UFO landed?特殊疑问句例句：What were you doing when a UFO landed?动词 when 和 while 的选择：when 后加瞬间动词，while 后加延续性动词。例句：The boy was walking down the street when the UFO landed. =While the boy was walking down the street, the UFO landed.感叹句结构：(1) How + adj. + the + 主语 + 谓语动词 =(2) What + (a/an) + [adj.] + n. + 主语 + 谓语动词例句：What a beautiful flower [it is]! =How beautiful the flower is! What beautiful flowers [they are]! =How beautiful the flowers are!