1、Then and now,Unit4,一般过去时与一般现在时,Part B,Grammar time,过去时与现在时的对比,时态,一般现在时：,一般过去时：,经常或习惯性的动作或存在的状态。,过去某个时间或时间段发生的动作或存在的状态。,(The Simple Present Tense),(The Simple Past Tense),一般现在时：,经常或习惯性的动作或存在的状态。,(The Simple Present Tense),一般现在时：,经常或习惯性的动作或存在的状态。,一般过去时：,(The Simple Past Tense),一般过去时：,过去某个时间或时间段发生的动作或存
2、在的状态。,(The Simple Past Tense),一般过去时：,过去某个时间或时间段发生的动作或存在的状态。,(The Simple Past Tense),一般过去时：,各时态常用的信息词,一般现在时:,always, usually, often, sometimes ,seldom, never, every day, every ,three times a day,各时态常用的信息词,一般过去时:,last night, last, two days ago, ago,in 1999, in +过去的年份,just now =a moment ago, yesterday,
3、 yesterday morning,动词第三人称 单数的构成：,过去式 的构成：,直接加-s。 以s, x, ch, sh, o结尾加-es。 以“辅音+y “结尾变y 为i再加-es。,直接加-ed。 以e结尾只加d。 重读辅元辅，双写尾字母再加-ed。 以“辅音+y”结尾变y 为i 再加-ed。,第三人称单数,过去式,study- finish- have- go- do- play- watch- give-,need- stop- hope- play- try- plan- visit- like-,studiesfinishes has goes does plays watch
4、esgives,neededstoppedhoped played tried planned visited liked,词形转换,用所给动词的适当形式填空。,1. Five years ago, Mary _ ( can) draw and read. 2. Tom usually _ (walk) to school. 3. My mother _(watch) TV play every day. 4. Old Bush _(visit) China again last month.,could,walks,watches,visited,用所给动词的适当形式填空。,5. I _ (play) sports three times a day. 6. Lucy and Lily often _(read) books. 7. There _(is) a football match yesterday afternoon. 8. Our class _( go) to the zoo three days ago.,play,read,was,went,Bye bye!,
