Unit 4 Then and now 课件.ppt

1、Then and now,Unit4,Story time,Read and answer What could Mike do six years ago? How did Mr Brown call his friends twenty years ago? Does Mikes grandpa read e-books now? Does Mrs Brown do shopping on the Internet now?,Write and say,Mr Brown,Mike,Write and say,Grandpa,Mrs Brown,Grammar time,过去时与现在时的对比

2、,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。,(

3、The Simple Past Tense),一般过去时：,各时态常用的信息词,一般现在时:,一般过去时:,always, usually, often, sometimes ,seldom, never, every day, every ,three times a day,last night, last, two days ago, ago, in 1999, in +过去的年份, just now =a moment ago, yesterday, 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-

4、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-,studies finishes has goes does plays watches gives,needed stopped hoped played tried planned visited liked,词形转

5、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. 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.,Fun time,Stick two photos into the blank and then tell us the differences.,Fun time,Think and write,(The Simple Present Tense)