動詞第三人稱單數(shù)形式構(gòu)成規(guī)則

1、一般現(xiàn)在時-動詞第三人稱單數(shù)形式構(gòu)成規(guī)則（一般現(xiàn)在時中主語時第三人稱1、大多數(shù)動詞在詞尾加“S”如：   stopstops makemakes   readreads playplays z2、以輔音字母加“y”結(jié)尾的，要先將“y”變?yōu)椤癷”，然后在加“es”讀iz 如：   flyflies carrycarries studystudies worryworries3、以“s, x, ch, sh”結(jié)尾的，在詞尾加“es”，發(fā)音為如：   teachteaches watchwatches 4、以“o”結(jié)尾的

2、動詞，加“es”，如：   gogoes dodoes 5、以不發(fā)音字母“e”結(jié)尾的開音節(jié)詞，加“s” 如： closecloses iz 6、be動詞包括：am， is， are。第三人稱單數(shù)用 is；過去式為 was；復(fù)數(shù)用are，過去式為were.  1. 動詞 have ，遇到主語是第三人稱單數(shù)時，要用 has； 動詞 be 的第三人稱單數(shù)形式是is。2. 含有動詞第三人稱單數(shù)形式的句子變否定句時，要用 doesn't + 動詞原形，如：He goes to school at six in the morning. (變否定句

3、) He doesn't go to school at six in the morning.3. 對含有動詞第三人稱單數(shù)形式的句子提問時，要用助動詞 does，如：She goes home at five every day. (對劃線部分提問) When / What time does she go home every day? 一般現(xiàn)在時中的第三人稱單數(shù)形式  在一般現(xiàn)在時中，當(dāng)主語是第三人稱單數(shù)時，謂語動詞要用第三人稱單數(shù)形式，即常在動詞原形后加-s或-es。 I 什么是一般現(xiàn)在時？一般現(xiàn)在時的基本用法有哪些呢？【No. 1】一般

4、現(xiàn)在時的功能1.表示事物或人物的特征、狀態(tài)。如：The sky is blue.天空是藍(lán)色的。2.表示經(jīng)常性或習(xí)慣性的動作。如：I get up at six every day.我每天六點起床。     標(biāo)志詞（時間狀語）：     always, every week (day, year, month), once a week,      every, sometimes, at, on Sunday uauslly often,never,hardly.3.表示客觀

5、現(xiàn)實。如：The earth goes around the sun.地球繞著太陽轉(zhuǎn)?！綨o. 2】一般現(xiàn)在時的構(gòu)成1. be動詞：主語+be(am,is,are)+其它。如：I am a boy.我是一個男孩。2.行為動詞：主語+行為動詞(+其它)。如：We study English.我們學(xué)習(xí)英語。當(dāng)主語為第三人稱單數(shù)(he, she,it)時，要在動詞后加"-s"或"-es"。如：    Mary likes Chinese.瑪麗喜歡漢語?！綨o. 3】一般現(xiàn)在時的變化  1. be動詞的變化。 &

6、#160;a 否定句：主語+ be + not +其它.如：       He is not a worker.他不是工人。  b 一般疑問句：Be +主語+其它。   如：-Are you a student?   -Yes. I am. / No, I'm not.  c 特殊疑問句：疑問詞+一般疑問句。如：       Where is my bike? 2.行為動詞的變化。  a 否定句：主

7、語+ don't( doesn't ) +動詞原形(+其它)。如：   I don't like bread.  b 當(dāng)主語為第三人稱單數(shù)時，要用doesn't構(gòu)成否定句。如：   He doesn't often play.  c 一般疑問句：Do( Does ) +主語+動詞原形+其它。如：   - Do you often play football?   - Yes, I do. / No, I don't.  當(dāng)主語為

8、第三人稱單數(shù)時，要用does構(gòu)成一般疑問句。如：   - Does she go to work by bike?   - Yes, she does. / No, she doesn't.【No. 4】特殊疑問句：疑問詞+一般疑問句。如：       How does your father go to work? II 哪些主語是第三人稱單數(shù)? 現(xiàn)歸納總結(jié)如下：一、人稱代詞he, she, it是第三人稱單數(shù)。如：   He likes watching

9、 TV. 他喜歡看電視。   he has lunch at twelve. 她十二點吃午餐。   It looks like a cat. 它看起來像只貓。二、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。三、單數(shù)可數(shù)名詞或"this / that /

10、 the+單數(shù)可數(shù)名詞"作主語時，是第三人稱單數(shù)。如：   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 Lucy's. 這只貓是露茜的。四、不定代詞someone, somebody, nobody, everything, something等及指示代詞this,    that作主語時，是第

11、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。五、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。六、當(dāng)數(shù)字或

12、字母作主語時，看作第三人稱單數(shù)。如：   "6" is a lucky number. "6"是個吉利數(shù)字。   "I" is a letter. "I"是個字母。鞏固練習(xí)題：I 寫出下列動詞的第三人稱單數(shù)形式：  sit-                  guess-  &#

13、160;                 die-                  go-  rush-             

14、;    reach-                    touch-                brush-  fly-       

15、60;          copy-                     say-                 

16、 run-    do-                   fix-                      live-  &

17、#160;              cry-  enjoy-                have-                &#

18、160;    wish-                 play-  Tie-                  teach-      

19、0;             buy-                  study-   drink-              

20、0; go-                       stay-                 make-  look-      &

21、#160;          carry-                    come-                 watch-  

22、; plant-                fly -                                

23、;    do-                   二、用括號內(nèi)動詞的適當(dāng)形式填空。1. He often _(have) dinner at home.2. Daniel and Tommy _(be) in Class One.3. We _(not watch) TV on Monday.4. Nick _(not go) to the zoo on Sunday.5.

24、 _ they _(like) the World Cup?6. What _they often _(do) on Saturdays?7. _ your parents _(read) newspapers every day?8. The girl _(teach) us English on Sundays.9. She and I _(take) a walk together every evening.10. There _(be) some water in the bottle.11. Mike _(like) cooking.12. They _(have) the same hobby.13. My aunt _(look) after her baby carefully.14. You always _(do) your homework well.15. I _(be) ill. Im staying in bed.16. She _(go) to school from Monday to Friday.17. Liu Tao _(do) not like PE.18. The child of