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動(dòng)詞第三人稱單數(shù)形式 主語有三單,動(dòng)詞也有三單,快點(diǎn)來習(xí)慣,體會(huì)在心里,一定要過關(guān). 1、 概念 動(dòng)詞第三人稱單數(shù)：主語是第三人稱單數(shù)，即謂語動(dòng)詞的發(fā)出者是it、she、he、可數(shù)名詞單數(shù)、不可數(shù)名詞等表示單數(shù)概念的詞時(shí)，實(shí)義動(dòng)詞后面要加-s或-es。（注意：若主語不是第三人稱單數(shù)形式，就直接用動(dòng)詞原形；若主語是三單，后有will等情態(tài)動(dòng)詞修飾時(shí)，動(dòng)詞也用原形。） 2、 動(dòng)詞三單變化規(guī)則（只有一般現(xiàn)在時(shí)才有第三人稱單數(shù)） 動(dòng)詞第三人稱單數(shù)的變化規(guī)則及發(fā)音規(guī)律，同名詞單數(shù)變復(fù)數(shù)大致相同，請(qǐng)認(rèn)真觀察。 1、 大多數(shù)實(shí)義動(dòng)詞在詞尾加“s”，在清輔音后發(fā)音為/ s / ，在濁輔音及元音因素后發(fā)音為 / z /。 如：speak→speaks /s/ ; come→comes /z/ ; play→plays /z/ 2、 以輔音字母加“y”結(jié)尾的動(dòng)詞，要先將“y”變?yōu)椤癷”，然后再加“es”，讀/z/。 如：study→studies /z/ ; fly→flies /z/ 3、 以“s，x，ch，sh”結(jié)尾的動(dòng)詞，在詞尾加“es”，發(fā)音為/ iz / 。 如：teach→teaches /iz/ ; watch→watches /iz/ 4、 以“o”結(jié)尾的動(dòng)詞,在詞尾加“es”。 常出現(xiàn)的兩個(gè)以“o”結(jié)尾的動(dòng)詞go和do后加“es”，讀/z/ 。 如：go→goes /z/ ; do→does /z/ 5、 記住最為特別的be的三單is ；have的三單是has。 [注意]（1）下面兩個(gè)動(dòng)詞變?nèi)龁螘r(shí)，原詞的元音部分的發(fā)音發(fā)生了較大的變化，要記憶。 如：do/du:/ →does/d z/ ; say/sei/ → says /sez/ （2）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： close－closes [iz] 3、 動(dòng)詞第三人稱單數(shù)的句子結(jié)構(gòu)。 1、 肯定/否定句 三單+is +表語 . 三單+動(dòng)詞第三人稱單數(shù)+其他 . 三單+is+not+表語 . 三單+doesnt +動(dòng)詞原形+其他 . 2、 一般疑問句 1）當(dāng)謂語動(dòng)詞是be動(dòng)詞時(shí)，一般疑問句結(jié)構(gòu)為“Is+三單+表語？”。它的肯定回答為： Yes, 三單+is. ;否定回答為：No，三單+isnt.。 2）當(dāng)謂語動(dòng)詞是實(shí)義動(dòng)詞時(shí)，在肯定句句首加助動(dòng)詞does,即“Does+三單+動(dòng)詞原形+ 其他？”。它的肯定回答為：Yes，三單+does.;否定回答為：No，三單+doesnt.。 3、 特殊疑問句 特殊疑問詞+一般疑問句 4、 要點(diǎn) 1）一定要看準(zhǔn)句子的主語是第三人稱而且還是單數(shù)； 2）經(jīng)常與頻率副詞連用：always (一直，總是），usually（通常），often (經(jīng)常），sometimes （有時(shí)），seldom (很少），hardly (幾乎不），never (從不），once a day (一天一次），twice a week(一周兩次），three times a month(一個(gè)月三次）。 如:I often speak Chinese. 我經(jīng)常說漢語。 練習(xí)題 I、寫出下列動(dòng)詞的第三人稱單數(shù)。 go do buy draw shout play teach make catch find swim jump begin dig help miss sing finish give keep dance worry sit hear match get have love learn cry fly study come call smile be write stop open check look drink leave read pick eat walk start tell push die ________ live ________ show vote judge buy _____ carry______ borrow listen wash II、用動(dòng)詞的正確形式填空。 1、I _____ (go) home by bus. 2、Jack ______(go) home by bike. 3、When ______(do)he get up? 4、Her mum ______(run) to the goose. 5、He________(do not)like apples. 6、Sam______(put) it under his arm. 7、The boy_______(chase) it. 8、Kitty______(watch)TV everyday. 9、John can’t______(find) his watch. 10、Where _____(do)Grandma live? 11、Miss Wang___(live) in America now. 12、The girls___(give) the key to Sally. 13、That key ______(open) the old box. 14、She ______(say) “I like these puppets”. 15、What_____(do)Alice find? 16、Which toy_____(do) she like? 17、He doesn’t______(know)her name. 18.、Mike ________( cook ) in a restaurant . 19、He_______( speak ) Japanese . 20、How does he______(go)to the post office? 21、He often ______( have ) dinner at home . 22、Liu Tao ____ ( do ) not like PE(體育）. 23、She ______(do) homework by herself. 24、They _____ (do) homework by themselves. 25、Kate _____ (walk) to school every day. 26、Lucy and Lily ______ (walk) to school every day. 27、David and Ben ______(be ) in Class Four ,Grade Seven . 28、The girl ___________（teach） us English on Sundays. 29、He______(feed)them at 8:00 in the morning. 30、She ____( ride ) to school from Monday to Friday . 31、We _____________ (not watch ) TV on Sunday . 32、Su Hai and Su Yang _____(work ) in a shop(在商店）. 33、There______( be) some water in the bottle(瓶子）. 34、The giant（巨人）______(climb) up the beanstalk（豆莖）. 35、Michael usually_____ (listen) to the radio in the morning. III、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(草地）. 3、 Peter ____________ (help, helps ) his mother with the housework(家務(wù)）. 4、 She never __________(run, runs ) in the library(圖書館）. 5、 We will _________(fly, flies ) kites on this Sunday . 6、 Tom and Mary _________(has, have ) pen pals in China . 7、 They _________(speaks, speak ) English after class. 8、 He _________(dont , doesnt ) get up early . 9、 What _________( do, does ) your father do ? 10、 Let us ___________(fly , flies ) kites on this Friday afternoon . IV、將下列句子改為第三人稱He的句型（看例句）。 例句：I brush my teeth once a day .→He brushes his teeth once a day . 1、 I come from China. ___________________________________________ 2、 You have a big black knife. _________________________________________ 3、 What do you do ? __________________________________________________ 4、 Our parents work in an office . ___________________________________________ 5、 What color are your clothes ?_____________________________________________ V、A：用括號(hào)里所給詞的適當(dāng)形式。 1、The desk _________ ________ (have)four legs. 2、She _____ _____ (do) her homework every day. 3、Danny______ ______ (fall) and breaks his tail. 4、He _____ _______ (live) in Shijiazhuang. 5、He ______ _____ (need) a pair of shoes. 6、Danny_______ _______ (see) the apple tree. 7、She_______ _______ (come) from America. 8、My mother and father_______ ______ (walk) to the office every day. 9、Danny and her mother sometimes ______ _______ (go) for a walk after supper. 10、The train______ ______ (leave) at 10:13 am. 11、That hat ______ _______ (look) like a cat. 12、Danny ______ ______ (hurt) his nose. B：用括號(hào)里所給詞的適當(dāng)形式。 1、____ the desk_______(have)four legs? 2、_____she_______(do)her homework every day? 3、_____he_____(live)in Beijing? 4、_____he_____(need)a pair of shoes? 5、______ Danny______(see)the apple tree? 6、_____she______(come)from America? 7、_____the girl_______(look)out of the window and see many birds in the sky? 8、_______Jenny （run）home and_______(sit)on the chair? VI、按要求改寫句子。 1、 Daniel watches TV every evening .(改為否定句） ________________________________________________ 2、 I do my homework (家庭作業(yè)）everyday .(改為一般疑問句，作否定回答） __________________________________________________________________________ 3、 She likes milk .(改為一般疑問句，作肯定回答） __________________________________________________________________________ 4、 Amy likes playing computer games .(改為一般疑問句，作肯定和否定回答） __________________________________________________________________________ 5、 We go to school every morning .(改為否定句） ___________________________________________________________________ 6、 He speaks English very well. (改為否定句）_______________________________________ 7、 She likes taking photos in the park(公園）.(對(duì)劃線部分提問） ______________________________________________________________ 8、 John comes from Canada.(對(duì)劃線部分提問）______________________________________ 9、 She is always a good student.(改為一般疑問句，作否定回答） ________________________________________________________________ 10、 Simon and Daniel like going shopping .(改為否定句，一般疑問句) ______________________________________________________________ _______________________________________________________________ VII、改錯(cuò)(劃出錯(cuò)誤的地方，將正確的寫在橫線上) 1. Is your brother speak English? ____________________________________ 2. Does he likes going fishing? ______________________________________ 3. He like playing games after class. ___ __ _______ 4. Mr. Wu teaches us English. ________ _________ 5. She don’t do her homework on Sundays. ______ _________ VIII、根據(jù)所給中文意思，在空白處填入適當(dāng)詞語完成句子。每空一詞。 1．該吃晚飯了。It’s time to ________ ________. 2．你想來點(diǎn)兒面包嗎?Would you ________ some ________ ? 3．安太小，還不能上學(xué)。Ann is ________ young ________ go to school. 4．約翰跑得和我一樣快。John runs ________ fast ________ me. 5．布萊克太太經(jīng)常在英語上幫助我們。Mrs. black often _______ us ________ our English . 6．老師讓我們每天說英語。The teacher tells us ________ ________ English every day. 7．為什么不讓孩子們做他們喜歡的事情?_____ _______let the children do what they like? 8 . 你能告訴我你的新同學(xué)是誰嗎？______ you _____ me _____ is your new ____________? 9 . 我能很會(huì)說漢語，但我只能講一些英語和日語。 I can ______ Chinese very _____ , ______ I only can speak _______ _______ and _______ . 10 . —他在心里說了什么？_______ ______ he _______ in the letter ? —他想要參觀中國長城。He ______/_______ ______ to _______ the _______ ________ . 11 . 我們互相幫忙。 We _______ _______ ________ . 13 . —他住在英國嗎？_______ he ________ ______ England ? —是的，他是。_______ , ______ _______ . 14 . 我和我哥哥住在一起。 I ______ ______ ______ brother . 15 . 這個(gè)老人一點(diǎn)都不喜歡棕色。This _____ man _______ ______ brown ______ _______ .