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

这是一份初中英语人教版（2024）八年级下册（2024）Section A图文课件ppt，共17页。PPT课件主要包含了Objectives，现在完成时Ⅲ，Exercises，单项选择等内容，欢迎下载使用。
T express duratin using the present perfect tense with since and fr.T learn sme new wrds.
Grammar Fcus
Read the sentences. Hw are fr and since used differently?
Fr is used t talk abut a perid f time (hw lng smething has happened).Since is used t talk abut a specific pint in time (when smething started).
现在完成时表示从过去已经开始并持续到现在的动作或状态，通常与since或fr引导的时间状语连用。
1. fr和since引导的时间状语的区别： ◇ fr + 时间段； ◇ since + 过去的时间点或表示时间点的从句，如“since + 一段时间 + ag”。▶ Jeff has had his bike fr mre than 10 years. 杰夫已经拥有这辆自行车超过十年。▶ He’s wned it since his furth birthday. 自从四岁生日起，他就拥有了它。2. 现在完成时表示动作持续发生时, 还可以用以下表示包括现在时间在内的时间状语：up t nw、tday、s far、this year等。 ▶ Up t nw, the wrk has been easy. 到目前为止，工作很容易。
3. 表示动作持续发生时，只能用表示持续动作的动词或状态动词，不能用表示短暂动作或位置转移的动词。▶ I bught this bk in Shanghai. I have had it fr three years.这本书是我在上海买的。我买了它三年了。4. 延续性动词与非延续性动词的区别(1) 延续性动词：be、have、knw、live、wrk、study、learn、speak、wear、sleep等，这些词可以和表示一段时间的时间状语连用。▶ He has wrked in Wenzhu fr almst 13 years.他已经在温州工作了近13年。(2) 非延续性动词：begin、end、die、buy、brrw、cme、arrive、jin、marry等，这些词可用于现在完成时，说明某个动作的结果还存在，但不与表示一段时间的状语连用。▶ I have bught a bk. 我买了一本书。▶ I have arrived in Beijing. 我已经到达北京了。
5. 非延续性动词和延续性动词之间的转换(1) 非延续性动词转换为相应的延续性动词，用于现在完成时。 brrw → keep， buy → have， put n → wear(2) 非延续性动词转化为“be +形容词/副词/介词/名词”。begin / start → be n，g ut → be ut，clse → be clsed，pen → be pen，get t / arrive / reach → be (in)， die → be dead，leave → be away，finish → be ver，jin → be in / be a member f，becme → be，make friends → be friends，cme / g → be +相应的介词短语
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 trained
Let’s practice
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. 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.
have helped
Wrk in grups. Interview yur grupmates using the questins belw. Share the answers with the class.
Language pints
1. Linda likes serving in the army. 琳达喜欢在军队服役。
▶ After leaving schl, Mike went int the army.迈克从学校毕业后参军了。
2. Mr Wu has taught in a primary schl as a vlunteer tw years nw. 吴老师 在一所小学做志愿者教师两年了。
3. Since I started, I (help) ut at ver ten different sprts events. 自从我开始当志愿者以来，我 过超过十场不同的体育赛事。
▶ Can yu help ut my prblem? 你能帮助我解决问题吗？▶ When I bught the huse, my sister helped me ut with a lan.我买这所房子时，我姐姐借给了我一笔钱解了急。
4. They were at a stadium fr a charity match. 他们当时在体育场参加一场慈善比赛。
▶ This charity gives bks t kids in villages.这个慈善机构给乡村孩子送书。 ▶ Many peple d charity t help pr children.很多人做慈善来帮助贫困儿童。
5. I gave them directins and they (smile) and (thank) me warmly. 我给他们指了路，他们 并热情地 我。
▶ The children warmly welcmed the new teacher.孩子们热情地欢迎了新老师。 ▶ The sun shne warmly n the garden.阳光温暖地照耀着花园。
（ ）1. The mvie Ne Zha 2 with the public since it came ut.A. has been ppular B. is ppularC. was ppular D. will be ppular（ ）2. Many internatinal students t visit ur schl since last year.A. are cming B. have cmeC. came D. will cme（ ）3. Her grandfather a car in 2007. He the car fr 10 years.A. bught; has bught B. bught; has hadC. buys; has had D. buys; has bught
（ ）4. I will n my father's farm this summer.A. take ut B. help withC. help ut D. lk ut（ ）5. When we in Nanchang, we were welcmed by ur friends at the airprt.A. reached; warmly B. arrived; warmlyC. reached; warm D. arrived; warm