初中英语Section B课前预习课件ppt

这是一份初中英语Section B课前预习课件ppt，共56页。PPT课件主要包含了现在完成时的构成，现在完成时，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。
Learning Objectives
理解现在完成时的表意功能，总结和归纳现在完成时不同句式的构成，掌握现在完成时助动词 have/has 与不同人称代词及否定词 nt 的缩略形式；识别并恰当使用现在完成时的标志性副词 ever、never、already、just 和 yet；在语境中正确使用现在完成时，通过与一般现在时和一般过去时的对比，深入理解并掌握现在完成时的用法;在完成语法练习的同时了解更多文学名著，体会阅读的意义，并通过调查同学的阅读经历互相激励，激发阅读的动力。
通过本课时学习，我能够：
Let's enjy a sng Seasns in the Sun.
Gdbye t yu my trusted friendWe've knwn each ther since we were nine r tenTgether we've climbed hills and treesLearned f lve and ABC'sSkinned ur hearts and skinned ur kneesGdbye my friend it's hard t dieWhen all the birds are singing in the skyNw that spring is in the airPretty girls are everywhereThink f me and I'll be thereWe had jy we had funWe had seasns in the sunBut the hills that we climbedWere just seasns ut f timeGdbye Papa please pray fr meI was the black sheep f the family
Yu tried t teach me right frm wrngT much wine and t much sngWnder hw I gt alngGdbye Papa it's hard t dieWhen all the birds are singing in the skyNw that spring is in the airLittle children everywhereWhen yu'll see them I'll be thereWe had jy we had funWe had seasns in the sunBut the wine and the sngLike the seasns have all gneWe had jy we had funWe had seasns in the sunBut the wine and the sngLike the seasns have all gne
Lk at the lyrics and pay attentin t the bld wrds.
Fu Xing: ______ yu ________ n a bk fr yur reprt, Peter?Peter: Yes, I _________.
A: ______ Peter _______ heard f this bk?B: N, he’s _________ heard f it.
A: ________ Chen Jie ________ this bk yet?B: N, but she’s _______ brrwed it frm the library.
Peter: What _________ yu read recently?Fu Xing: I’ve _______ finished Alice’s Adventures in Wnderland.
Have decided
Has ever
Has read
Read the sentences and underline the present perfect frms f the verbs.
“助动词have/has+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。表示从过去开始并持续到现在的动作或状态，常与包括现在在内的一段时间的状语连用。
The classrm is s clean, wh has cleaned it?
We have learned English fr 6 years.
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？
现在完成时的句型转换：
( haven’t/ hasn’t )
(--Yes, 主 + have/ has. N, 主+ haven’t/ hasn’t. )
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
Cmplete the table and find the rules fr past participles.
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：
注：不规则动词 包含了过去式
一首歌曲帮你快速记忆不规则变化的过去分词
signal adverbs
recently 最近befre 以前s far 到目前为止...
Pay attentin t the meanings f the bld wrds.
We have already finished ur hmewrk.
He has already read Harry Ptter befre.
She hasn’t cme back yet.
Have yu had lunch yet?
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.
1. S far, she ______ many dishes with special tastes.A. invents B. will invent C. has invented（2025 广东卷-完形填空）2. I’m wrried abut my friend because I haven’t heard frm him _______. (2025黑龙江齐齐哈尔)A. exactlyB. suddenlyC. recently3. — Excuse me, may I use yur ruler? I ______ mine.— Of curse! Here yu are. (2025黑龙江哈尔滨)A. have lstB. will lseC. am lsing
4. - Excuse me, may I use yur dictinary? I ___ mine behind. - Sure, here yu are. (2024 安徽)A. leave B. have left C. will leave D. was leaving5. - Sally, I _______ the picture already. - Ww, truly beautiful! (2023 福建省) A. finish B. have finished C. was finishing6. - _____ yu ____ abut Naxi Ancient Music yet? - Yes, I have. It is a part f Naxi culture. (2023 云南省) A. Has; heardB. Have; heard C. Did; hearD. D; hear
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 ________ started writing my reprt.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!
already/just
hear f 听说, 得知
recmmend sb. sth.= recmmend sth. t sb.
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. 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
行业PPT模板http/hangye/
Intrductin f Bks
The Adventures f Tm Sawyer《汤姆·索亚历险记》是美国小说家马克·吐温创作的长篇小说，该小说以儿童历险生活为题材，讲述汤姆·索亚厌恶家庭、学校乃至教会的呆板生活，总幻想绿林好汉式的冒险经历。一天，他与好友偶然发现印第安·乔为盗墓杀死同伙的秘密。经过激烈思想斗争，他终于去法庭揭露了印第安·乔的罪恶。后来汤姆与哈克外出途中遇到潜逃在外的印第安·乔。印第安·乔企图杀死汤姆，结果被困入山洞饥饿而死。汤姆与哈克发现了印第安·乔埋藏的一箱金钱，两个人都成了富翁。
Interview yur classmates and find ut wh has dne these activities.
watched a mvie based n a nvelread a bk mre than twicejined a reading club
一、用never、ever、already、just或yet填空。
1.I have ______ seen him befre，s I have n idea abut has ___________ finished his hmewrk.3.I have ________ written a letter t my parents，but I haven’t psted it ____.
just/already
4.—Have yu _____ seen the film?—N，I have ______ seen it.
5.—Has the bus left ____?—Yes，it has ___________ left.
二、用括号内所给单词的适当形式填空。
北京五中校本经典题6.I _______（jin） the bk club last mnth and I __________（read） five bks already.7.I nly _______（start） taking French classes last week and I ___________（learn） 50 French wrds already.
have learnt
8.Tny _______（buy） a new bike yesterday but he _____________（ride） it yet.
hasn’t ridden
9.They _____________（listen） t many sngs by The Beatles recently,but they cannt _____（sing） any f _____（see） the newspaper n the table this mrning,but she __________（have）any time t read it yet.
have listened
三、用括号内所给单词的适当形式完成短文，使短文意思通顺、完整。
兰生复旦校本经典题 11. ______ yu ever _____（read） the famus stry abut Chang’e，the Chinese mn gddess?#1
Once upn a time,there was a beautiful wman named Chang’e and her husband Hu Yi. One day,ten suns 12. _________（appear） in the sky. It gt very ht n the earth,and many peple died. T save the peple，Hu Yi 13. _____（sht） dwn nine f the suns. As a reward,the Queen Mther f the
West 14. _____（give） him a bttle f the elixir f immrtality（长生不老药）.One day,smene tried t steal the bttle,s Chang’e 15. ______（drink） it instead. The elixir made her fly higher and higher. In the end，she 16. _____（fly） all the way t the mn. Sme peple say that Chang’e still lives there tday. This stry 17. _________（be） very ppular since the Han Dynasty. Fr ver a thusand years,peple 18. _______________（celebrate） the Mid-Autumn Festival by ffering fruit and mncakes t the mn.#1.3
have celebrated