四年级知识点总结按单元Unit 1：look/loot at用法人称、this/that vs. these/those搭配名词单复数Would you like / Do you like a/an；some/any带do的一般疑问句回答how/what引导的感叹句：同义句互改This is for you. Thank you.on the tree/in the treewhat/what time祈使句及其否定：dont带do和三单的陈述句变否定句(do的三单does)人称：主格、宾格区分Unit 2：lets + v. / Lets=Let usMango, potato, tomato, hero复数；fruit不可数Would you like? Yes, please. / No, thank you.I like / Id likeHow many+复数Wake upIts time for .Cake with 水果人称：主格、宾格、形代区分Unit 3: 情
