20130622动词的基本形式.ppt

2.动词的基本形式Basic Forms of verb 基本形式 Basic forms 动词原形 base form—do,help 动词第三人称单数 third person singular form—does,helps 现在分词 present participle—doing,helping 过去式 past form—did,helped 过去分词 past participle—done,helped 第三人称单数构成 Forming ‘does’ 1、大多数动词在词尾加-s,knows; 2、以辅音字母加“y”结尾的，要先将“y”变为“i”，然后再加-es,flies; ?? 3、以“s, x, ch, sh”结尾的，在词尾加-es，fixes,washes,guesses; 4、以“o”结尾的动词，加-es,go－goes 发音：-s在清辅音后读[s],在浊辅音或元音后后读[z],在t 后读[ts],在d后读[ds]. 过去式及过去分词构成Forming ‘did’ and ‘done’ 1.一般加-ed,worked; 2.以e结尾的直接加-d,lived; 3.以’辅音字母+y’结尾的，改y为i， 再加-ed,studied; 4.若是以‘一个元音字母+一个辅音字母‘结尾， 该音节又重读，双写末位字母再-ed,stopped,preferred 发音：-ed在清辅音后读[t],在浊辅音和元音后读[d],在t,d后读[id]. 现在分词构成 Forming ‘doing’ 1.一般直接加-ing,eating; 2.以e结尾的动词去e后加-ing,writing; 3.若是以‘一个元音字母+一个辅音字母‘结尾，该音节又重读者，双写末位字母再加-ing,swimming,chatting; 4.加-ing时词尾特别变化单词汇总： die-dying,lie-lying,tie-lying, hoe锄草-hoeing,toe用脚尖走路-toeing, dye使染上颜色-dyeing，picnic-picnicking, panic使惊慌-panicking 3.动词的时态 tense 时态概述 Tense overview 英语动词共有十六种时态，一般情况下可以见到的有十二种时态， 分为 ‘现在’ 、‘过去’ 和‘将来’ 三大类； 每类中又分为 ‘一般’、‘进行’、‘完成’和‘完成进行’四种，组合后共演变出十二种时态。 Other points 1.Common five tenses 2.各种时态否定式构成 3.各种时态疑问式构成 Exercise:判断时态 Tense judgment 1.Spring will come again. 2.I have seen this film before. 3.She was going to sell her old car and buy a new one. 4.I’ll be waiting for you outside. 5.She had left her case on the train. 6.He showed me the poems he had written. 7.You’ve been smoking too much. 8.We’ll be getting in touch with you. 9.I’m waiting to have a word with you. 10.When does the play begin? 11.The trouble lies in the socket. 12.I was having a bath at that time. 13.He had been working since dawn. 14.He said he would be watching TV that night. 15.In two years he would be seventy. 16.How long have you been wearing glasses? Extra treasure 1.You seem?subdued. Are you all right? 你好像有点没精神。有什么心事吗？ 2.No spells no. 我说不行就不行（没必要再讨论了）。 3.Don’t?bulldoze?me. 别逼我。 4.He got this?zen?look on his face. 他摆出一副一本正经/无所谓的样子。 5.Their smiles were?plastic. 他们的笑太假了。 * I will h