動詞三單變化規則順口溜

  動詞單三變化規則

  1.一般情況下,直接在動詞詞尾+s:

  2.以s,x,sh,ch,o結尾的動詞,在詞尾+ es:

  3.以子音字母+ y 結尾的動詞,先把y變為i,再加es:

  4.不規則動詞(特殊情況):

  變否定句時遵循的規則

  含有動詞第三人稱單數形式的.句子變否定句時,要在動詞前面加上doesn’t 或does not,動詞的第三人稱單數形式要還原成原形:格式為doesn’t/does

  not+ 動詞原形,如:

  He goes to school at six in the morning. (變否定句) 就變換為:

  He doesn't go to school at six in the morning.

  2.變一般疑問句:把含有動詞第三人稱單數形式的變成一般疑問句時,要借用助動

  詞does,如:

  She goes home at five every day.(變疑問句)就變換為:

  Does she go home at five every day? -- Yes,she does./No,she doesn’t.

  哪些主語是第三人稱單數

  1.人稱代詞he,she,it;

  如:He likes watching TV.

  She has lunch at twelve.

  It looks like a cat.

  2.單個人名、地名或稱呼作主語;是第三人稱單數。如:

  Han Mei looks like her mother.

  Beijing is in China.

  Uncle Wang often makes cakes.

  3.單數可數名詞或

  this/that/the+單數可數名詞作主語時,是第三人稱單數;

  A horse is a useful animal.

  This book is yours.

  That car is red.

  4、不可數名詞作主語時為第三人稱單數。如:

  The milk is in the glass.

  The bread is very small.

  The water is very cold.

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