動(dòng)詞第三人稱單數(shù)及練習(xí).doc

Unit5 和Unit6語法的總結(jié)和練習(xí)（一）第三人稱都有哪些詞呢？大家都知道，在一般現(xiàn)在時(shí)中，當(dāng)主語是第三人稱單數(shù)時(shí)，謂語動(dòng)詞（實(shí)意動(dòng)詞）要用第三人稱單數(shù)形式，即常在動(dòng)詞原形后加-s或-es或是變y為i加es。但有些同學(xué)們對(duì)于哪些主語是第三人稱單數(shù)還不十分清楚，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：（注意句中動(dòng)詞的變化）1. He likes cars. 他喜歡車。2. She goes to school at seven. 她七點(diǎn)去上學(xué)。3. It has a good name. 它有一個(gè)好名字。 二、單個(gè)人名、親朋好友等稱呼作主語 是第三人稱單數(shù)。如：（注意句中動(dòng)詞的變化）1. Pat never throws rubbish on the floor. Pat從不在地板上扔垃圾。2. Miss Wang waters the flowers once a day. 王老師給花一天澆水一次。3. Aunt Mary usually makes cakes. 瑪麗阿姨經(jīng)常做蛋糕。4. My mother washes the dishes everyday. 我媽媽每天都洗碗。（二）動(dòng)詞的第三人稱單數(shù)？動(dòng)詞第三人稱單數(shù)形式的構(gòu)成：動(dòng)詞怎樣變成第三人稱單數(shù)呢？改變后怎樣讀？動(dòng)詞原形變第三人稱單數(shù)的規(guī)則與發(fā)音規(guī)律同名詞單數(shù)變復(fù)數(shù)大致相同。1. 大多數(shù)動(dòng)詞在詞尾加“s”在清輔音后發(fā)音為s，在濁輔音及元音后發(fā)音為 z。如： stopstops s ; makemakes s readreads z ; 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 z； carrycarries z studystudies z; worryworries3. 以“s, x, ch, sh”結(jié)尾的，在詞尾加“es”，發(fā)音為iz 如： teachteaches iz; watchwatches iz4. 以“o”結(jié)尾的動(dòng)詞，加“es”，讀z 如： gogoes z dodoes z下面幾個(gè)動(dòng)詞變?yōu)閱螖?shù)時(shí)，原詞的元音部分的發(fā)音發(fā)生了較大的變化，請(qǐng)注意記憶。 如：1、do du:does daz2、say seisays sez以不發(fā)音字母“e”結(jié)尾的開音節(jié)詞，如果尾音是s，z時(shí)，加“s”后字母“e”發(fā)音， 與所加“s”一起讀做iz。 如： closecloses iz除上述規(guī)律外，還應(yīng)注意下面：1. 動(dòng)詞 have ，遇到主語是第三人稱單數(shù)時(shí)，要用 has； 動(dòng)詞 be 的第三人稱單數(shù)形式是is。（三）含有動(dòng)詞第三人稱單數(shù)形式的句子變否定句和疑問時(shí)怎樣變？【注意：】只要句子中出現(xiàn)do, does,dont,doesnt, 句子中原來的實(shí)意動(dòng)詞要用原形 例如：He likes apples. (改成否定句) He doesnt likes apples。(錯(cuò)) He doesnt like apples。(對(duì))A 否定句：（1）當(dāng)主語是第一，二或復(fù)數(shù)時(shí)，主語+ dont +動(dòng)詞原形(+其它)。如：I dont like bread. （2） 當(dāng)主語為第三人稱單數(shù)時(shí)，要用doesnt構(gòu)成否定句。如： He doesnt often play.B 一般疑問句：（1）當(dāng)主語是第一，二或復(fù)數(shù)時(shí)，Do +主語+動(dòng)詞原形+其它。如： Do you often play football? - Yes, I do. / No, I dont. (2) 當(dāng)主語為第三人稱單數(shù)時(shí)，要用does構(gòu)成一般疑問句。如： - Does she go to work by bike? - Yes, she does. / No, she doesnt.C特殊疑問句：疑問詞+一般疑問句。如：How does your father go to work?（四）練習(xí)題練習(xí)一、 寫出下列動(dòng)詞的第三人稱單數(shù)drink_go_stay_make_look_have_pass_carry_come_watch_plant_fly_study_brush_do_teach_meet_bring_ 練習(xí)二、將括號(hào)里動(dòng)詞的適當(dāng)形式填入橫線上。1. I _ in the corridors. (walk)2. He _ in the corridors. (run)3. She _ her face once a day. (wash)4. They _ their teeth once a day. (brush)5. You _ up your clothes once a day. (hang)6. We _ our home work once a day. (finish)7. He _ rubbish in the classroom. (throw)8. She _ rubbish on the floor. (throw)9. I _ rubbish in the bin. (throw)10. They _ the table once a day. (set)11. Peter never _ in the corridors. (run)12. Mary usually _ the table. (set)13. Pat and Ken _ the plants in the morning. (water)14. The boy _ his hair once a day. (comb)15. Miss Cheng _ TV at home. (watch)16. My sister _ his schoolbag once a day. (pack)17. My mother _ dinner for me. (cook)18. My parents _ the house at Chinese New Year. (clean)19. My teachers _ us some gifts. (give)20. My friends _ the table with me. (set)練習(xí)三、選擇正確的單詞填到括號(hào)里。1. What does Candy _ (wants, want) to be?2. He shouldnt _ (throw, throws) rubbish on the floor.3. Peter _ (help, helps) his mother at home.4. She never _ (run, runs) in the corridors.5. We should _ (walks, walk) in the corridors.6. He _ (dont, doesnt) get up early.7. How often _ (do, does) your father go to bed? 8. We _ (not watch) TV on Monday.9. Nick _ (not go) to the zoo on Sunday.10._they _ (like) the World Cup?11. What _they often _ (do) on Saturdays?12._your parents_ (read) newspapers every day?13. The girl _ (teach) us English on Sundays.14. She and I _ (take) a walk together every evening.15. There _ (be) some water in the bottle.16. Mike _ (like) cooking.17. They _ (have) the same hobby.18. My aunt _ (look) after her baby carefully.19. You always _ (do) your homework well.20. I _ (be) ill. Im staying in bed.21. She _ (go) to school from Monday to Friday.22. Liu Tao _ (do) not like PE.23. The child often _ (watch) TV in the evening.24. Su Hai and Su Yang _ (have) eight lessons this term.25. He_ TV every evening. (watch)26. John _ like his father. (look)27. He often _(have) dinner at home.練習(xí)四、將下列句子改成第三人稱He的句型（看例句）例句：I brush my teeth once a day. - 改：He brushes his teeth once a day.1. I comb my hair twice a day._2. They go to school at six in the morning._3. You wash your face and put on your clothes._4. When do you get up?_5. How often do you hang up your clothes?_練習(xí)五、 句型轉(zhuǎn)換1. I go to school by bus. (用He做主語)_2. Kim plays baseball very well. (變一般疑問句)_3. She plays sports every day. (變否定句)_4. David doesnt like French. （變肯定