動(dòng)詞：動(dòng)詞的四種時(shí)態(tài)：

　　(1)一般現(xiàn)在時(shí)：

　　一般現(xiàn)在時(shí)的構(gòu)成

　　1. be動(dòng)詞：主語(yǔ)+be(am, is, are)+其它。如：　I am a boy. 我是一個(gè)男孩。

　　2. 行為動(dòng)詞：主語(yǔ)+行為動(dòng)詞(+其它)。 如 We study English. 我們學(xué)習(xí)英語(yǔ)。

　　當(dāng)主語(yǔ)為第三人稱單數(shù)(he, she, it)時(shí)，要在動(dòng)詞后加"-s"或"-es"。如：Mary likes Chinese.瑪麗喜歡漢語(yǔ)。

　　動(dòng)詞+s的變化規(guī)則

　　1.一般情況下，直接加-s，如：cook-cooks, milk-milks

　　2.以s. x. sh. ch. o結(jié)尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes

　　3.以"輔音字母+y"結(jié)尾，變y為i, 再加-es，如：study-studies

　　(2)一般過(guò)去時(shí):

　　動(dòng)詞過(guò)去式詳解 動(dòng)詞的過(guò)去式的構(gòu)成規(guī)則有：

　　A、規(guī)則動(dòng)詞

　　① 一般直接在動(dòng)詞的后面加ed：如　worked , learned , cleaned , visited

　　②　以e結(jié)尾的動(dòng)詞直接加d：如　lived , danced , used

　　③ 以輔音字母加y結(jié)尾的動(dòng)詞要改y為i再加ed(此類動(dòng)詞較少)如　study - studied carry - carried worry - worried (注意play、stay不是輔音字母加y,所以不屬于此類)

　　④ 雙寫最后一個(gè)字母(此類動(dòng)詞較少)如　stopped

　　B、不規(guī)則動(dòng)詞(此類詞并無(wú)規(guī)則，須熟記)小學(xué)階段要記住以下動(dòng)詞的原形和過(guò)去式：sing - sang , eat - ate ,

　　see - saw , have - had , do - did , go - went , take - took ,

　　buy - bought , get - got , read - read ,fly - flew , am/is - was ,

　　are - were , say - said , leave - left , swim - swam , tell - told ,

　　draw - drew , come - came , lose - lost , find - found ,

　　drink - drank , hurt - hurt , feel - felt

　　(3)一般將來(lái)時(shí)：

　　基本結(jié)構(gòu)： ①be going to + do;

　　②will+ do. be going to = will

　　I am going to go swimming tomorrow(明天). = I will go swimming tomorrow.

　　(4)現(xiàn)在進(jìn)行時(shí): am,is,are+動(dòng)詞現(xiàn)在分詞

　　動(dòng)詞現(xiàn)在分詞詳解 動(dòng)詞的ing形式的構(gòu)成規(guī)則：

　　① 一般的直接在后面加上ing , 如doing , going , working , singing , eating

　　② 以e 結(jié)尾的動(dòng)詞，要先去e再加ing　，如having , writing

　　③ 雙寫最后一個(gè)字母的(此類動(dòng)詞極少)有：running , swimming , sitting , getting