小学英语过去式课件.ppt
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小学英语过去式过去时通常表示在的过去某个时间里所发生的动作或存在的状态。
通常在句子里能找到表示过去时间的词或词组。
如:yesterday,yesterday morning,yesterday afternoon,yesterday evening,the day before yesterday(前天),last night,last week,last month,last year,a moment ago(刚才),just now(刚才),two days ago,a week ago,in 1990等。
如:I went to bed at eleven last night. 昨晚我11:00睡觉。
动词过去式的构成规律(一)规则动词的过去式1.一般情况下,在动词原形后面加-ed;look→looked play→played start→started visit→visited2.以不发音e结尾的动词,在词尾直接加-d;live→lived use→used3.以“辅音字母+ y”结尾的动词,先将y 改为i ,再加–ed;study→studied, try→tried fly→flied4.以重读闭音节(即辅音+元音+辅音)或r音节结尾,末尾只有一个辅音字母的动词,要先双写这个辅音字母后,再加–ed。
stop→stopped plan→planned, prefer→preferred(二)不规则动词的过去式1.改变动词中的元音;begin→began drink→drank come→came eat→ate grow→grew run→ran know→knew win→won speak→spoke take→took write→wrote get→got 2.变词尾的–d 为–t ;build→built lend→lent send→sent spend→spent bend→bent 3.与动词原形一样;cut→cut put→put cost→cost hurt→hurt shut→shut4.变-ay 为-aid (少数动词);say→said pay→paid lay→laid5.采用不同词根;sell→sold teach→taught buy→bought6.其他。
不规则变化am/is --- was 是are --- were 是buy---bought 买come --- came 来drink---drank 喝,饮draw--- drew 画drink --- drank 喝do --- did 做eat---ate 吃fall --- fell 下落;摔倒find --- found 发现go --- went 去get --- got 得到give --- gave 给find---found 发现,找到have --- had 度过,有make --- made 制作meet---met 看见;见take---took 带,拿,乘坐lose---lost 丢失learn --- learnt 学习ring---rang 响ride---rode 骑run --- ran 跑see --- saw 看到send --- sent 发送;寄sing --- sang 唱swim---swam 游泳take --- took拍摄tell---told 告诉win---won 赢得write --- wrote 写原型 + dtie--- tied 系,绑live --- lived 居住dance --- danced 跳arrive---arrived 到达phone --- phoned 打电话原型+edcook --- cooked 煮东西climb---climbed 爬help --- helped 帮助laugh--- laughed 笑jump---jumped 跳play --- played 玩row --- rowed 划船visit---visited参观,旅游,拜访talk --- talked 说visit---visited 参观walk---walked 步行wash---washed 洗work --- worked 工作watch --- watched 看paint--- painted 涂色stay---stayed 停留原型去y + iedcarry --- carried 搬运;带cry --- cried 哭study --- studied 学习双写末尾字母 + eddrop---dropped 掉落skip---skipped 跳绳travel --- travelled 旅行原型保持不变cut--- cut 剪put--- put放。