初中英语人教版（2024）八年级下册（2024）Section A教学课件ppt

这是一份初中英语人教版（2024）八年级下册（2024）Section A教学课件ppt，共39页。PPT课件主要包含了现在完成时，现在完成时的构成，动词过去分词，现在完成时的用法，love，past，now， years，for + 一段时间，Have等内容，欢迎下载使用。
Read the sentences and underline the present perfect frms f the verbs. Pay attentin t the meanings f the bld wrds.
Grammar Fcus
I’ve=I have
she’s=she has
haven’t=have nt
hasn’t=has nt
现在完成时由“助动词have/has+过去分词”构成。
注：主语若是第三人称单数助动词用has
肯定句：主语 + have/has + 过去分词 + 其他.否定句：主语 + have/has + nt + 过去分词 + 其他.一般疑问句：Have/Has + 主语 + 过去分词 + 其他？特殊疑问句：疑问词 + have/has + 主语 + 过去分词 + 其他？
以动词 finish 为例：
规则动词的过去分词与过去式相同，不规则动词需要单独记忆。
规则动词过去分词构成：
常见不规则动词过去分词：
表示过去发生或已经完成的动作对现在造成的影响或结果。
表示某一动作或状态从过去某一时间开始并一直持续到现在，可以和表示延续的时间状语连用。表示持续动作或状态的动词多是延续性动词。
•••••••••••••••
Fu Xing finished Alice’s Adventures in Wnderland.
Fu Xing can share many interesting details f the bk with Peter.
Fu Xing has finished Alice’s Adventures in Wnderland.
1.表示过去发生或已经完成的动作对现在造成的影响或结果。
I read Arund the Wrld in Eighty Days fr the first time.
I've already read Arund the Wrld in Eighty Days twice.
I read Arund the Wrld in Eighty Days fr the secnd time.
2. 表示一个动作到现在已经发生了多少次。
I’ve always lved reading fantasy bks.
3. 表示过去发生的动作一直延续到现在，而且可能持续到将来。
fr + 一段时间 / since + 开始时间(从句)
四、现在完成时的标志词
already / just / never / yet / ever
s far / in the past few years
Mr. and Mrs. Green have wned this huse fr fifty years.
They have lived here ever since.
The village has changed a lt during that time.
during that time
since + 过去时间
We have been here fr fifty years.
We have been here since 1970.
We have been here since 1970.We have been here since 50 years ag.We have been here since we gt married.
我喜欢肯定句，我经常站助动词和过去分词中间。
I have already read the stry.I have just read the stry.I have never read the stry.
肯定用already，否定、疑问用yet
I haven’t read the stry yet.Have yu read the stry yet?
我喜欢否定和疑问句，但我不喜欢在中间。
I have ever read the stry.Have yu ever read the stry?
我喜欢肯定，我也喜欢疑问，我总在实义动词前面。
注:在肯句中，非延续性动词(如arrive、leave、cme、g等)一般不能与表示持续性时间的状语(如fr tw hurs)连用，但在否结构中，可用非延续性动词的现在完成时表示持续的动作或状态。
例如:I haven't bught any fd since last week. The fridge is empty nw.自从上周以来，我还没有买过任何食物。冰箱现在是空的了。
Where has Tm gne? We haven't seen him the whle mrning.汤姆去哪儿了?我们整个上午都没见到他。
现在完成时和一般过去时的区别
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结果，强调的是现在的情况，所以不能和表示过去的时间状语用，如 yesterday、last night、three weeks ag、in1990等。
而一般过去时只表示过去的动作或状态，和现在不发生联系，它可以和上述表示过去的时间状语连用。
例如:Fu Xing has wrked at a nursing hme since last year.付兴从去年开始就在一家养老院工作。
Fu Xing wrked at a nursing hme last year. 付兴去年在一家养老院工作。
(她现在还在那里工作。)
(不涉及她现在是否还在那里工作。)
I have watched the mvie befre.我以前看过这部电影。
I watched the mvie last week.我上星期看了这部电影。
(我了解这部电影的内容。)
(只说明上星期看了这部电影，不涉及现在的情况。)
A: _________ yu__________ (finish) hmewrk?B: Yes, I have.A: When_________ yu___________ (finish) it?B: I__________ (finish) it at 19:00.A: _________ yu___________ (send) the letter t yur cusin yet?B: Yes, I___________ (send) it last mnth.
Cmplete the cnversatins with ever, never, just, already, r yet.
1. A: Have yu ________ heard f the bk The Little Prince?B: N, I’ve________heard f it.A: I’ve_________finished reading it. It’s such a simple stry, but yu can learn a lt frm it!
2. A: Have yu chsen a bk fr yur bk reprt____?B: Yes, I’ve chsen The Little Match Girl. It’s such a sad stry, but I lve it. I’ve_________ read it many times.3. A: I’ve______ read a classic nvel befre. Culd yu recmmend ne?B: Well, I’ve______finished Outlaws f the Marsh. It’s really gd!A: Oh, thanks! Culd I brrw it?B: Sure!
Cmplete the passage with the simple past r present perfect frms f the verbs in brackets.
________yu ever____________(try) t read bks frm different cuntries? At the start f this year, I____________(decide) t read bks frm as many cuntries as pssible. I_________(begin) with The Adventures f Tm Sawyer. Nw I________ already ________(read) twenty different bks.
相当于at the beginning f
These bks____________(teach) me a lt abut ther cultures and scieties, and they___________(allw) me t see the wrld differently. In the past, I nly______ (knw) the names f different cuntries, but nw I understand them a little bit better. This experience has been amazing s far. I never________(realize) hw big ur wrld really is!
have taught
have allwed
过去，对应短语in the future“在将来”
Interview yur classmates and find ut wh has dne these activities.
read all fur Chinese literary classics watched a mvie based n a nvelread a bk in a different language read a bk mre than twiceread a bk with mre than 500 pages jined a reading club
1、 Culd yu recmmend ne?  你能推荐一本吗？
recmmend v. 推荐；建议
①[动词]推荐recmmend sb. /sth. 推荐某人/某物recmmend sb. fr sth. 推荐某人获得某物recmmend sth. t sb. 向某人推荐某物
Language pints
Can yu recmmend a gd lawyer?你能介绍一位好律师吗？
I highly recmmend her fr the 2024 yuth star Award. 我强烈推荐她获得“2024年青年之星奖”。
I am lking fr places f interest in china. Can yu recmmend sme t me? 我正在寻找中国的名胜，你能给我推荐一些吗？
②[动词]建议recmmend sb. t d sth. 建议某人做某事recmmend ding sth. 建议做某事
I recmmend yu t bk yur flight early. 我建议你早点儿预订航班。
He recmmended reading the bk befre seeing the mvie. 他建议先看这本书，再去看这部电影。
2、 Watched a mvie based n a nvel.观看了一部根据小说改编的电影。
过去分词短语作后置定语
based n a nvel为过去分词短语，作后置定语，修饰a mvie， base与a mvie之间是动宾关系。过去分词短语作定语修饰名词时，通常放在名词的后面，相当于一个定语从句。
I brrwed a bk (which was) written by Mark Twain frm the library. 我从图书馆借了一本马克.吐温写的书。
The by (wh is) named/called Tny is my cusin. 那个叫托尼的男孩是我的堂弟。
base sth n sth 以……为基础；以……为根据
base在此处作动词，常用结构为：①base... n/upn... 把……建立在……的基础上
Edisn based his ideas n scientific experiments. 爱迪生的想法是建立在科学实验的基础上的。
②be based n/upn... 以……为基础
The real-life versin f Mulan is based n Hua Mulan in Chinese histry. 真人版的木兰以中国历史上的花木兰为基础。