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

这是一份初中英语人教版（2024）八年级下册（2024）Section A教课ppt课件，文件包含第3课时SectionAGrammarFocus4a4dpptx、区别for和since_x264mp4、现在完成时forsincemp4等3份课件配套教学资源，其中PPT共26页， 欢迎下载使用。
Read the sentences. Hw are fr and since used differently?
Grammar Fcus
(一)含since或fr的现在完成时
某些动词的现在完成时可表示从过去某一时间开始并一直持续到现在的动作或状态，常与“fr+时间段”和“since +过去的时间点或从句”连用。
He has wrked here fr ver twenty years. 他已经在这里工作二十多年了。
He has learnt abut 2,000 English wrds since he started learning English.他自开始学英语以来已经学了大约2000个英语单词。
The factry has been here since the 1970s.这家工厂从 20 世纪 70 年代起就在这里了。
含fr和含since的现在完成时的句子有时可互相转换。
我从 13 年前开始就住在这里。
I’ve lived here fr 13 years.
It has been 13 years since I began t live here.
（二）现在完成时中的谓语动词规则变化
在含有现在完成时的肯定句中，与表示持续性时间的状语连用的动词一般为延续性动词，但在否定句中，可以用非延续性动词。
常见的延续性动词有have、live、teach、learn、wrk、study、knw等；常见的非延续性动词(词组)有cme、g、leave、start、die、finish、becme、jin、buy、get married等。
部分非延续性动词(词组)和与之对应的延续性动词(词组）
（三）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产生的结果，强调的是现在的情况；不能和表示过去的时间状语连用。
He has lived here since 2008. 自2008年以来他一直住在这里。
—般过去时：只表示过去的动作或状态，和现在不发生联系；可以和表示过去的时间状语连用。
He lived here in 2012. 2012年他住在这里。
(不涉及他现在是否还住在这里)
Cmplete the sentences with the crrect frms f the verbs in brackets and fr r since.
1. This cllege student enjys vlunteering fr the army. She_____________(teach) English t the sldiers _____ three years.2. I__________(be) a member f the Red Crss fr six years. I have made a lt f friends ________I jined the rganizatin.
3. Mr Wu has taught in a primary schl as a vlunteer ________ tw years nw. _________he started wrking there, he __________(help) many students.4. The rganizatin___________(train) ver 6,000 vlunteers __________it began t ffer classes three years ag.
has helped
has trained
Cmplete the passage with the crrect frms f the verbs in brackets.
I lve being a vlunteer! I____________(wrk) with a sprts rganizatin fr almst three years nw. Since I started, I ____________ (help) ut at ver ten different sprts events. I ____________(make) many new friends and I ________ even ________(meet) many famus athletes. Fr example, I ______(meet) tw natinal ftball players frm Argentina last mnth.
have helped
They were at a stadium fr a charity match. The stadium _______(be) s big that they_______ (get) lst. I gave them directins and they________(smile)and____________(thank) me warmly.I am prud t be a vlunteer.
Wrk in grups. Interview yur grupmates using the questins belw. Share the answers with the class.
In ur grup, Maria has lived in this neighbrhd fr nly ne year, but she knws it very well. Tm has lived in the neighbrhd since he was a baby. And he has had his favrite ty, a sft teddy bear fr 9 years. He received it n his fifth birthday. Tm has a gd friend called Jimmy and they have been gd friends fr six
1、 Linda likes serving in the army.琳达喜欢在军队服役。
army 作名词，意为“军队”，复数形式为 armies。
常见搭配：jin the army（参军）、serve in the army（服兵役）、the army and navy（陆海两军）、regular army（正规军）。
He decided t jin the army after graduatin.他毕业后决定参军。
Language pints
2、 Mr Wu has taught in a primary schl as a vlunteer fr tw years nw.作为志愿者吴先生现在已经在一所小学任教两年了。
primary adj. 小学教育的；首要的
(1)adj.小学教育的，用于名词前作定语。
primary schl小学
primary educatin小学教育
Fr middle and primary schl students, learning t ck has becme a must. 对于中小学生来说，学习烹饪已经成为必须要做的事。
Persnal safety is f primary imprtance. 人身安全至关重要。
3、 Since I started, I have helped ut at ver ten different sprts events. 自我开始工作以来，我已经协助了十多场不同的体育赛事。
help ut 意为“分担工作；帮忙做”。
help (sb) ut with sth 帮助某人处理某事
Can yu help me ut with the heavy bxes?你能帮我搬一下这些重箱子吗？
I’ll help ut with the party preparatins.我会帮忙准备派对。
4、 They were at a stadium fr a charity match.他们正在体育场参加一场慈善比赛。
1）表示 “慈善（行为 / 事业）”，为不可数
d charity（做慈善） charity wrk（慈善工作）ut f charity（出于慈善）
All the mney raised will be dnated t charity.所有筹集的资金将捐给慈善事业。
2）表示 “慈善机构 / 组织” ，可数，复数形式为 charities。
Several lcal charities are wrking tgether t help the victims.几家当地慈善机构联手帮助灾民。
5、 I gave them directins and they smiled and thanked me warmly. 我为他们指了路，他们微笑并热情地感谢了我。
warmly adv. 热情地；温暖地
由“warm (adj. 温暖的) + -ly(副词后缀)”构成。
The villagers welcmed us warmly. 村民们热情地迎接我们。
Make sure that the children are dressed warmly. 一定要让孩子们穿得暖和。