英語(yǔ)過(guò)去式的變化PPT課件(PPT 15頁(yè))

1、動(dòng)詞過(guò)去式變化規(guī)則1-第1頁(yè)，共15頁(yè)。一、規(guī)則變化2-第2頁(yè)，共15頁(yè)。1、 一般情況下,動(dòng)詞詞尾加-ed如：workworked playplayed wantwanted askasked 3-第3頁(yè)，共15頁(yè)。2、 以不發(fā)音的-e結(jié)尾動(dòng)詞,動(dòng)詞詞尾加-d如 ：livelived movemoved tastetasted4-第4頁(yè)，共15頁(yè)。3、 以“輔音字母+y”結(jié)尾的動(dòng)詞, 把y改成i,加 ed,如：studystudiedtrytried copycopied carrycarried5-第5頁(yè)，共15頁(yè)。4、重讀閉音節(jié)動(dòng)詞,雙寫(xiě)詞尾輔音字母, 再加ed如： stopstoppe

2、d6-第6頁(yè)，共15頁(yè)。二、不規(guī)則變化is/ amwas arewere dodid have hashad gowent meetmet comecame taketook stealstole eatate ringrang swimswam writewrote riderode drivedrove drawdrew growgrew knowknew getgot forgetforgot sweepswept keepkept sleepslept speakspoke breakbroke telltold sellsold buybought thinkthought catc

3、hcaught teachtaught buildbuilt cancould shallshould willwould 7-第7頁(yè)，共15頁(yè)。過(guò)去式與動(dòng)詞原形一樣letlet mustmust putput readreadcost-cost8-第8頁(yè)，共15頁(yè)。A-A-A型原形過(guò)去式過(guò)去分詞意思readreadread讀cutcutcut切、割putputput放letletlet讓costcostcost值、花費(fèi)hithithit撞、擊setsetset安排hurthurthurt受傷9-第9頁(yè)，共15頁(yè)。A-B-A型原形過(guò)去式過(guò)去分詞意思becomebecamebecome成為comecamecome來(lái)runranrun跑10-第10頁(yè)，共15頁(yè)。A-B-C型1.ow-ew-own原形過(guò)去式過(guò)去分詞意思blowblewblown吹knowknewknown知道drawdrewdrown畫(huà)growgrewgrown生長(zhǎng)flyflewflown飛11-第11頁(yè)，共15頁(yè)。2.i-a-u原形過(guò)去式過(guò)去分詞意思beginbeganbegun開(kāi)始drinkdrankdrunk喝singsangsung唱swimswamswum游泳ringrang