小学英语一般现在时与过去式课件.ppt
Grammar一般现在时与一般过去时,动词第三人称单数的的构成原则: 1)一般在动词词尾加 s;2) 以s, x, o, sh, ch结尾加es; 3) 末尾是辅音字母y动词,改y为I,再 加es;,规则动词过去式的构成原则: 1) 一般在动词原形末尾加-ed；2) 词尾是e的动词加-d; 3) 末尾是辅音字母y动词，改y为i再加ed;4) 末尾只有一个辅音字母的重读闭音节词,先双写这个辅音字母，再加ed.,一般现在时与一般过去时,含有动词的句型,一般过去时表示过去时间内某人某物存在的状态，性质等eg:I was a teacher last year. She(He) was a singer.WeYou were happy.They,一般现在时表示某人某物现在的状态，性质等eg: I am a teacher now. She(He) is a singer. We They are happy. You,一、将下列动词变为第三人称单数形式和过去式,climb: watch: wash: live: dance: use: study: empty: stop: buy: do: read:,climbs,climbed,watches,watched,washes,washed,lives,lived,dances,danced,uses,used,studies,studied,empties,emptied,stops,stopped,buys,bought,does,did,reads,read,规则动词过去式的构成原则: 1) 一般在动词原形末尾加-ed；2) 词尾是e的动词加-d; 3) 末尾是辅音字母y动词，改y为i， 再加ed;4) 末尾只有一个辅音字母的重读闭音节词,先双写这个辅音字母，再加ed.,动词第三人称单数的的构成原则: 1)一般在动词词尾加 s;2) 以s, x, o, sh, ch结尾加es; 3) 末尾是辅音字母y动词,改y为I,再加es;,Lets have a match.,do:,did,go:,went,sing:,sang,eat:,ate,take:,took,have:,had,buy:,bought,see:,saw,read :,read,get:,got,一般现在时与一般过去时,不规则动词的过去式大体上归纳有以下六条记忆法： 1. 以t结尾的词，过去式与原形相同。如：putput, letlet, cutcut, beatbeat 2. 以d结尾的词，把d变成t。如:buildbuilt, lendlent, sendsent, spendspent,3. 以n结尾的词，在词后加t。如：meanmeant, burnburnt 4. 以ow / aw结尾的词，把ow / aw变成ew。, learnlearnt 如：blowblew, drawdrew, knowknew, growgrew 5. 含有双写字母的词，将双写改为单写，在词尾加t。如：keepkept, sleepslept, feelfelt, smellsmelt 6. 含有元音字母o / i的词，将o / i变成a。如：singsang, givegave, sitsat, drinkdrank其他动词很随和，带上ed成过去。,口诀： 过去式很简单，只要你能这样记。前提必须是动词，不规则变化先牢记。再记规则两三条,结尾有e只加d.live变成lived, hope变成hoped以y结尾也不难，把y变i加edcry变成cried，copy变成copied目前双写只有俩，drop过去dropped,stop要变stopped。,二、请根据要求改写句子,2022/11/5,1) Sarah is in her bedroom. (变为一般疑问句) 2) I go to school on foot.(变为一般疑问句) 3)They cleaned the room yesterday. (变为一般疑问句) 4) He watched TV last night. (变为一般疑问句) 5) My brother lives in Beijing. (变为一般疑问句),Is Sarah in her bedroom?,Do you go to school on foot?,Did they clean the room yesterday?,Did he watch TV last night?,Does your brother live in Beijing?,6) I have a sore throat. (变为一般疑问句) 7) We sang and danced in the park last Sunday.(变为 一般疑问句) 8)Mike bought presents in Kunming.(就划线部分提问) 9) I usually eat dinner at 6:30. (就划线部分提问) ) 10)I often play the piano on the weekend.(把一般现在 时变成一般过去时),Do you have a sore throat?,Did you sing and dance in the park last Sunday?,What did Mike do in Kunming?,When do you usually eat dinner?,I played the piano last weekend.,二、请根据要求改写句子,三、用动词的适当形式填空,1 Sarah is my good friend. She often (get) up at 6:30 and (eat) breakfast at 7:00. Then she usually (go) to school on foot. Last weekend she (go) hiking with me. We (climb) a mountain and (take) pictures. We were very happy. Mike is from Canada. Hes an English teacher. 2 He (live) in Shanghai. He usually (get) up at 7:00 and (go) to work by car. He (speak) Chinese very well. The students (like) him very much. Yesterday they (go) to the Changfeng Park. They (take) the bus to (get) there. They (have) a picnic and (sing) together. They were very happy.,gets,eats,goes,went,climbed,took,lives,gets,goes,speaks,like,went,took,get,had,sang,
