高一英语：unit2 lesson1modern heroes-grammar课件北师大版.pptVIP

7. It is said that the early European playing-cards ____ for entertainment and education. A. were being designed B. have designed C. have been designed D. were designed 8. I know a little bit about Italy as my wife and I ________ there several years ago. are going B. had been C. went D. have been 练习 Present simple tense Past continuous tense * * (I)规则动词的过去式变化规则 （1）一般情况下，动词词尾加 -ed ，如：worked played wanted acted （2）以不发音的 -e 结尾动词，动词词尾加 -d，如：lived moved decided hoped （3）以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如：studied tried copied just （4）以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加 -ed，如：stopped dropped planned dotted dripped Past simple tense 基本结构 规则动词词尾加-ed有三种读音： 1. 在清辅音后读作[t]。如：asked, helped, watched, stopped 2. 在浊辅音和元音后读作[d]。如：enjoyed, studied, moved, called 3. 在t / d后读作[id]。如：wanted, needed Past simple tense 基本结构 (II)不规则动词的过去式 不规则动词的过去式变化规律性不强，须多加记忆。 1. 以t结尾的词，过去式与原形相同。如：put—put, let—let, cut—cut, beat—beat 2. 以d结尾的词，把d变成t。如:build—built, lend—lent, send—sent, spend—spent 3. 以n结尾的词，在词后加t。如：mean—meant, burn—burnt, learn—learnt Past simple tense 基本结构 4. 以ow / aw结尾的词，把ow / aw变成ew。如：blow—blew, draw—drew, know—knew, grow—grew 5. 含有双写字母的词，将双写改为单写，在词尾加t。如：keep—kept, sleep—slept, feel—felt, smell—smelt 6. 含有元音字母o / i的词，将o / i变成a。如：sing—sang, give—gave, sit—sat, drink—drank Past simple tense 基本结构 (III)Be动词的过去式 （1）am---was （2）are---were （3）is---was Past simple tense 基本结构 Past simple tense 基本句式 例句 结构 句式 疑问词+did+主语+原形实义动词+……? Did+主语+原形实义动词+……? 主语+didn’t+原形实义动词+…… 主语+实义动词过去式+…… When did you have your lunch? 特 殊 疑问句 Did you have a party the other day？ 一 般 疑问句 I didnt know you were so busy. 否定句 He smoked many cigarettes a day 肯定句 Past simple tense 基本句式 例句 结构 句式 疑问词+was/were+主语+……? Was/Were+主语+……? 主语+wasn’t/ weren’t +…… 主语+was /were +…… When were you born? 特 殊 疑问句 Were you ill yesterday? 一 般 疑问句 We werent late yesterday. 否定句 I was late yesterday