小学英语人教版 (PEP)六年级下册Unit 4 Then and now Part C背景图课件ppt

这是一份小学英语人教版 (PEP)六年级下册Unit 4 Then and now Part C背景图课件ppt，文件包含人教版英语六年级下册Unit4ThenandnowPartC课件pptx、人教版英语六年级下册Unit4ThenandnowPartC教案docx等2份课件配套教学资源，其中PPT共38页， 欢迎下载使用。

dining hall
play badmintn
Let’s review
Nw there are many things t help yu ck.
In 2050,there will be huse rbts.They will ck,clean and wash the dishes.
Oh,cavemen didn’t ck their meat?
It’s OK.They didn’t d the dishes either!
There were many trees,and there were many clean rivers.
Nw,there are mre and mre buildings.
Lk!Hw beautiful the wrld was!Oh!What will the birds d?
Dn’t wrry.Peple will help them.
Befre humans lived n the earth,whales already lived in the sea.
Nw,there are nt many whales.
If we change nw,whales and humans will have a bright future.
Heal the wrld!
Make it a better place!
一般过去时态的否定句形式
1．找动词was，were，culd直接加nt.was nt = wasn’t were nt = weren’t culd nt = culdn’t
Language pint
2．没有was，were，找出动词过去式，动词前加didn’t，didn’t加原形，其他照抄。I rde a bike yesterday.（改为否定句）I didn’t ride a bike yesterday.
两人一组合作朗读。2.分角色表演对话。3.情景展示表演。
1．I went shpping yesterday. I didn’t g shpping yesterday.2．I tk pictures last Sunday. I didn’t take pictures last Sunday.
将下列句子改为否定句。
3．He played ftball last Saturday. He didn’t play ftball last Saturday.4．She bught gifts last night. She didn’t buy gifts last night.5．We drank tea the day befre yesterday. We didn’t drink tea the day befre yesterday.
一般现在时VS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)
always, usually, ften,metimes ,seldm, nevernever, every day, every… ,three times a day
last night, last…, tw days ag, …ag, in 1999, in +过去的年份, just nw =a mment ag, yesterday, yesterday mrning
动词第三人称单数的构成：
①直接加-s。②以s, x, ch, sh, 结尾加-es。③以“辅音+y “结尾变y 为i再加-es。
①直接加-ed。②以e结尾只加d。③重读辅元辅，双写尾字母再加-ed。④以“辅音+y”结尾变y 为i 再加-ed。
study-finish-have-g-d-play-watch-give-
need-stp-hpe-play-try-plan-visit-like-
studies finishes has ges des plays watches gives
needed stpped hped played tried planned visited liked
1.听录音15分钟2.复述故事