初中英语人教新目标 (Go for it) 版八年级下册Section A优秀课件ppt

这是一份初中英语人教新目标 (Go for it) 版八年级下册Section A优秀课件ppt，共18页。PPT课件主要包含了用法一，他已经吃过了早饭，Exercises，have had，arrived，has，been，seen，saw，用法二等内容，欢迎下载使用。
I have visited the museum twice.Have yu ever been t the museum ?Yes ,I have./ N ,I haven’t.
have/has + dne（动词过去分词）
动词过去式过去分词的变化规则：一般动词加ed，（pen-pened-pened）本身e结尾直接加d ，（clse-clsed-clsed）重读闭音节单词,双写然后加ed，（plan-planned-planned ）辅音字母加y ,变y为i加ed，（study-studied-studied）特殊动词特殊记。(take-tk-taken)
present perfect tense（现在完成时）
表示过去发生的某一动作对现在造成的影响或产生的结果.现在完成时这一时态强调是过去动作与现在的联系,也就是强调对现在的影响和结果.
I fed the hrse just nw.
我刚才喂马了。（马儿现在饿不饿不知道，只是描述过去发生的事情。）
Past tense (一般过去时)
I have fed the hrse.
Present perfect tense 现在完成时
我已经喂过马了。（马儿现在不饿了，不需要喂。）
He had breakfast at 7:00 a.m. this mrning.
他今天早上七点吃的早饭。
He has had breakfast.
Adverbials f time（时间状语)
befre（以前） by nw /s far（到目前为止） nce, twice…（一次，两次… ） just（刚刚） recently/lately（最近） yet(否/疑), already(肯), ever,（曾经） never（从不）, in /during the past /last 5 years,（在过去的/最近的五年（期间）
1. I ___ ____(have) lunch already.2. Has the train _______ (arrive), yet?3.Tm ____ never_______ (be) t China.4. The twin ______just _____(see) my father.5. The twins ____(see) my father just nw.6. Many tall buildings ____________(build) in the past 5 years.
have been built
表示过去某个时间开始的动作或存在的状态，一直持续到现在并可能还将持续下去。动词使用延续性动词。常与fr或since引导的时间连用.
fr+时间段 since+过去的时间点 since+句子（过去时）
Kate has lived here fr 3 years.Kate has lived here since 3 years ag.Kate has lived here since she came t China.
常见非延续性动词和延续性动词的转变
arrive/cme/g t die becme brrwLeave buy penjin start/begin finish/ endcatch a cld get up clse wake upg t sleepbecme interested in
be away frm
be a member f/in
sleep/be asleep
be interested in
1.His father has died. (fr 2 years)2.The ftball match has begun.(since9:00a.m)3.They have jined the army. (since they were 18 years ld)4.My teacher has just left Nanjing. (fr 3 days)
His father has been dead fr 2 years.
The ftball match has been n since 9:00 a.m.
They have been in the army since they were 18 years ld.
My teacher has just been away frm Nanjing fr 3 days.
一个重点句型: It is/ has been+时间段+since从句 时间段+has passed+ since从句
He died tw years ag
He has been dead fr tw years /since tw years ag
It is/ has been tw years since he died.
Tw years has passed since he died.
这本书我借了一个月了。
I brrwed this bk a mnth ag.
I have kept the bk fr a mnth. /since a mnth ag.
It is/ has been a mnth since I brrwed the bk.
A mnth has passed since I brrwed the bk.
Have/has gne t have/has been t have/has been in
have/has gne t:已经去了或在途中，还没有返回；
have/has been t:曾今去过某地，现在已经回来了,后面可接表示“次数”的状语;
have/has been in:表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。
Tm 在哪儿？ 他去书店买书了。
-Where is Tm?-He has gne t the bkshp t buy sme bks.
Jack 去过上海两次了
Jack has been t Shanghai twice.
I have been in Beijing fr 5 years.
I have brrwed the bk fr 3 mnths.2. My bther has jined the army since he was 18.3. Jack and Tm have lived here since 5years.4. The film has been n since I have cme t the lng has Mr. Li caught a bad cld?
has been in/ has been a member f
Since 5 years ag /fr 5 years