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英語動詞第三人稱單數(shù)變化規(guī)則 一般現(xiàn)在時的肯定句中，主語為第三人稱單數(shù)的動詞變化主要體現(xiàn)在詞尾的變化上，其規(guī)律為： 規(guī)則 原形 第三人稱單數(shù)形式 1、一般情況下，直接在動詞詞尾+s get take play gets takes plays 2、以s, x, sh, ch, o結(jié)尾的動詞，在詞尾+ es guess fix finish teach go和do guesses fixes finishes teaches goes和does 3、以輔音字母+ y 結(jié)尾的動詞，先把y變?yōu)閕，再加es study try fly carry worry studies tries flies carries worries 4、不規(guī)則動詞（特殊情況） have be has is 1、變否定句：含有動詞第三人稱單數(shù)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(shù)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) →He doesnt 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(shù)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. →Does she go home at five every day? --- Yes, she does./No, she doesn’t. 3、對劃線部分進行提問（變特殊疑問句）：一般格式為Whxxx + 一般疑問句？ She goes home at five every day. (對劃線部分提問) →When/What time does she go home every day? She goes home at five every day. (對劃線部分提問) →Who goes home at five every day? She goes home at five every day. (對劃線部分提問) →What does she do at five every day? 哪些主語是第三人稱單數(shù)？ 1、 人稱代詞he, she, it； 如：He likes watching TV. 他喜歡看電視。 She has lunch at twelve. 她十二點吃午餐。 It looks like a cat. 它看起來像只貓。 2、單個人名、地名或稱呼作主語；是第三人稱單數(shù)。如： Han Mei looks like her mother. 韓梅看起來像她的母親。 Beijing is in China. 北京在中國。 Uncle Wang often makes cakes. 王叔叔經(jīng)常做蛋糕。 3、單數(shù)可數(shù)名詞或this / that / the + 單數(shù)可數(shù)名詞作主語時，是第三人稱單數(shù)； A horse is a useful animal. 馬是有用的動物。 This book is yours. 這本書是你的。 That car is red. 那輛小汽車是紅色的。 The cat is Lucys. 只貓是露茜的。 4、不定代詞someone, somebody, nobody, everything, something等及指示代詞this, that 作主語時，是第三人稱單數(shù)。如： Everyone is here. 大家到齊了。 There is something wrong with the watch. 這塊手表有毛病。 This is a pen. 這是一支鋼筆。 That is an eraser. 那是一塊橡皮擦。 5、不可數(shù)名詞作主語時為第三人稱單數(shù)。如： The milk is in the glass.牛奶在玻璃杯里。 The bread is very small. 那面包很小。 The water is very cold. 那些水很涼。 6、當(dāng)數(shù)字或字母作主語時，看作第三人稱單數(shù)。如： “7” is a lucky number in western countries, but “8” is a lucky number in China. “7”在西方國家是個吉利數(shù)字，但在中國“8”是個吉利數(shù)字。 “I” is a letter and a word. “I”既是個字母，又是單詞。 例題引路： 4、選出正確的答案： 1. She (like / likes) to play football. 2. He (like / likes) drinking milk. 3. I (like / likes) to watch TV. 4. We (like / likes) to play badminton. 5. They (like / likes) to sing songs. 6. She (read / reads) books every day. 7. He (play / plays) computer games every day. 8. It (listen / listens) to the radio every day. 9. Linda (draw / draws) pictures every day. 10. Jane and Linda (play / plays) football every day. 5、選擇題： 1. I to school every day. A. go B. goes C. going 2. He teeth every morning. A. brush B. brushes C. brushing 3. The birds singing. A. like B. likes C. like to 4. What does Lily doing? A. like B. likes C. to 5. you like eating apples? A. Do B. Does C. Doing 6. he swim every afternoon? A. Do B. Does C. Did 7. Tom likes in the classroom. A. singing B. sing C. to singing 8. –Does Sally like swimming? --No, she . A. does B. doesn’t C. didn’t 9. Peter and Mary milk every day. A. drink B. drinking C. drinks 10. they read English every day? A. Does B. Will C. Do