Unit4ThenandnowPartB--一般过去时与一般现在时

1、Then and now一般过去时与一般现在时Part BSix years ago,Nancy could read and draw,but she could not write.Now she can do many things.1.What couldnt she do?2.What can she do now?A:Five years ago, Mike made friends at school.He bought things from shops. B:Now he has e-friends from all over the world.He does shoppi

2、ng on the Internet too.Grammar time过去时与现在时的对比过去时与现在时的对比时态时态一般现在时：一般现在时：一般过去时：一般过去时：经常经常或或习惯性习惯性的动的动作或存在的状态。作或存在的状态。过去过去某个时间或时间某个时间或时间段发生的动作或存在段发生的动作或存在的状态。的状态。(The Simple Present Tense)(The Simple Past Tense)一般现在时：一般现在时：经常经常或或习惯性习惯性的动的动作或存在的状态。作或存在的状态。(The Simple Present Tense)一般现在时：一般现在时：经常经常或或习惯性习

3、惯性的动的动作或存在的状态。作或存在的状态。一般过去时：一般过去时：(The Simple Past Tense)一般过去时：一般过去时：过去过去某个时间或时间某个时间或时间段发生的动作或存在段发生的动作或存在的状态。的状态。(The Simple Past Tense)一般过去时：一般过去时：过去过去某个时间或时间某个时间或时间段发生的动作或存在段发生的动作或存在的状态。的状态。(The Simple Past Tense)一般过去时：一般过去时：各时态常用的信息词各时态常用的信息词一般现在时: always, usually, often, sometimes ,seldom, never

4、, every day, every ,three times a day各时态常用的信息词各时态常用的信息词一般过去时: last night, last, two days ago, ago, in 1999, in +过去过去的年份的年份, just now =a moment ago, yesterday, yesterday morning 动词第三人称动词第三人称单数的构成：单数的构成：过去式过去式的构成：的构成：直接加直接加-s。以以s, x, ch, sh, o结尾加结尾加-es。以以“辅音辅音+y “结尾变结尾变y 为为i再加再加-es。直接加直接加-ed。以以e结尾只加结尾

5、只加d。重读辅元辅，双写尾字母再加重读辅元辅，双写尾字母再加-ed。以以“辅音辅音+y”结尾变结尾变y 为为i 再加再加-ed。第三人称单数第三人称单数过去式过去式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用所给动词的适当形式填空。用所给动词的适当形式填空。1. Fi

6、ve 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.couldwalkswatchesvisited用所给动词的适当形式填空。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.playreadwaswentStick two photos into the blank and then tell us the differences.人有了知识，就会具备各种分析能力，明辨是非的能力。所以我们要勤恳读书，广泛阅读，古人说“书中自有黄金屋。”通过阅读科技书