2018小升初英语知识点:一般过去时

    518小升初英语自身知识点:非常之前时
  1.非常之前时表达出来之前该商品时段遭受的训练或美国和中国存在的肌肤,常和表达出来之前的时段状语连用。非常之前时也表达出来之前性功能衰退或出现遭受的训练感谢。
  2.Be动词在非常之前时中的转变:
  ⑴am 和is在非常之前时中搞成was。(was not=wasn’t)
  ⑵are在非常之前时中搞成were。(were not=weren’t)
  ⑶带有was或were的句子,其否认、疑问的转变和is, am, are类似,即否认句在was或were后加not,非常疑问句把was或were调到句首。
  3.句中没得be动词的非常之前时的句子
  否认句:didn’t +动词be动词,如:Jim didn’t go home yesterday. 非常疑问句:在句首加did,句子中的动词之前式恢复be动词。如:Did Jim go home yesterday? 被特殊疑问句:
  ⑴疑问词+did+主语+动词be动词?如: What did Jim do yesterday? ⑵疑问词当主语时:疑问词+动词之前式?如:Who went to home yesterday?
  动词之前式转变还款规则
  1.非常在动词末尾加-ed,如:pull-pullad, cook-cooked
  2.结尾是e加d,如:taste-tasted
  3.末尾不过三个元音字母和三个辅音字母的重读闭音节,应双写末尾的辅音字母,再配-ed,如:sgeme-sgemeped
  是以“辅音字母+y”结尾的,变y为i,
  再配-ed,如:study-studied
  5.不还款规则动词之前式: am,is-was, are-were, do-did, see-saw, say-said, give-gave, tet-got, go-went, come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, fly-flaw, ride-rode, speak-spoke, sweep-swefb, swim-swam, sit-sat
 

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