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ents.(Tom’s sister)二 小學(xué)英語所有句型轉(zhuǎn)換的方法基本助動詞只有三個:be, do, have, 他們沒有詞匯意義,只有語法作用,第3 / 6頁如協(xié)助構(gòu)成進(jìn)行體,完成體,被動態(tài),否定句,疑問句等。一、肯定句改否定句的方法——一步法在be動詞后加not。如:is not,are not,am not,was not,were not;在can,should,will等后加not。如:cannot,should not,will not;上述都沒有的,在動詞前加助動詞否定形式don’t/doesn’t/didn’t。some 改成any。二、肯定句改一般疑問句的方法——三步法把be動詞放在句首,剩下的照抄,(some 改成any,my改成your等)句點改成問號。把can,shall,will等放到句首,剩下的照抄,(some 改成any,my改成your等)句點改成問號。例如:陳述句: They are in the can play the guitar..一般疑問句: Are they in the park? Can he play the guitar? 把下列句子變成一般疑問句 am listening to is a can clean the are in the 第4 / 6頁 are some flowers in the is my are sweeping the 上述都沒有的,在句首請助動詞Do/Does/Did幫忙,剩下的照抄,(some 改成any,my改成your等)句點改成問號。例如:陳述句: I like the likes the :Do you like the ducks? Does he like the dogs? 把下列句子改為一般疑問句。 need some like making the Hai and Su Yang live in a new put a book on my sing “In the classroom” play basketball on 動詞的第三人稱單數(shù)形式規(guī)律如下:多數(shù)在動詞后加s play—plays like—likes readreads singsings dancedances cookcookslooklooks以s,x,sh,ch,o結(jié)尾的動詞加es go—goes wash—washes watchwatches catchcatches dodoes以輔音字母加y結(jié)尾,把y改i再加es fly—flies study—studiestrytries 特別注意:以y 結(jié)尾的動詞變化,看清楚y前面的那個字母是元音還是輔音? 輔音+y的,要改y,例如carry carries。元音+y 的,不改y,例如 play 、動詞have 的第三人稱單數(shù)形式是has,這是一個不規(guī)則的變化,我們經(jīng)常會遇到。含有動詞第三人稱單數(shù)的句子,在變否定句時要在動詞前加doesn’t;變疑問句時要在主語前加助動詞does。這時句子的謂語動詞改為原形。如: Alice usually plays in the doesn’t usually plays in the park.第四篇:英語動詞第三人稱單數(shù)形式練習(xí)英語動詞第三人稱單數(shù)形式練習(xí)寫出下列動詞的第三人稱單數(shù)drink _______ go _______ stay ________ make ________look _________ have_______ pass_______carry _