初中英语人教版（2024）九年级上册（2024）Grammar Focus教学课件ppt

这是一份初中英语人教版（2024）九年级上册（2024）Grammar Focus教学课件ppt，共23页。PPT课件主要包含了Lead-in，New words，Textbook，was found，connects，were used，be created，were built，allow，increased等内容，欢迎下载使用。
Sectin A（4a-4c）
· 学习目标· 新课导入· 内容讲解· 课堂总结
Learning gals
1. New wrds: telephne, suppse, wheel, frzen, eastern, layer, melt, pipe, turism, ecnmic, gain 2. Expressins: all ver the wrld, be suppsed t d / be sth3. Sentences: ① It is believed that the wrld’s ldest wheel was fund in Eastern Eurpe. ② It was impssible t build the railway ver the frzen grund.
Let’s learn Passive Vice tgether!
telephne /ˈtelɪfəʊn/ n. 电话suppse /səˈpəʊz/ v. 认为；推断wheel /wiːl/ n. 车轮；轮子frzen /ˈfrəʊzn/ adj. 冻硬的；冰封的eastern /ˈiːstən/ adj. 东部的；向东的layer /ˈleɪə(r)/ n. 层；表层
melt /melt/ v. （使）融化；逐渐消失pipe /paɪp/ n. 管道；管子；烟斗 turism /ˈtʊərɪzəm/ n. 旅游业ecnmic /ˌiːkəˈnɒmɪk/ adj. 经济的；经济学的gain /ɡeɪn/ v. 获得；取得
Read the sentences. Circle the verbs in the passive vice.
A mini-camera is cnnected t the frnt f the glasses.
The il and salt are als added by the machine itself.
Tys, chairs, tables, and even huses can all be made by the 3D printer.
A radi message was sent acrss the Atlantic Ocean fr the first time in 1901.
Cmplete the sentences with the crrect frms f the verbs in brackets.
1. The telephne ___________ (invent) by Alexander Bell in 1876.
2. Peple all ver the wrld _____________ (cnnect) t each ther thrugh the internet.
3. The wrd “ rbt ” ______________(intrduce) fr the first time in a play in 1920.
was invented
are cnnected
was intrduced
4. It wasn’t suppsed t make such a lud nise when the buttn ____________ (press) t start the machine.
5. It is believed that the wrld’s ldest wheel ____________ (find) in Eastern Eurpe.
was pressed
Language pints
1.被动语态的含义：主语被……，承受动作。2. 基本结构：be + 过去分词 (dne)3.常用时态被动结构• 一般现在时：am / is / are + dne• 一般过去时：was / were + dne• 一般将来时：will be + dne• 情态动词被动：情态动词 (must / can / shuld) + be + dne
四、主动变被动1. 把宾语变主语2. 动词改为 be + 过去分词3. 原主语前加 by（可省略）4. 时态保持一致例：Peple grw rice. → Rice is grwn by peple.
一、单项选择Many trees _________ every spring.A. plant B. are planted C. planted D. were planted二、句型转换Peple use cups t drink water.（改为被动语态）Cups ______ ______ ______ drink water.
Cmplete the passage with the crrect frms f the verbs in brackets. Make a prfile f the Qinghai-Xizang Railway.
The Qinghai-Xizang Railway was cmpleted in 2006. It ________ (cnnect) Xining t Lhasa, a huge distance f 1,956 kilmetres, and it is the highest railway in the wrld, reaching 5,072 metres abve sea level at Tanggula Pass.
The building f the railway was a great challenge. Creative ideas ___________ (need) t slve different prblems. In summer, the tp layer f the frzen grund wuld melt and becme t sft t build n, s pipes _________ (use) t keep the grund hard. Hwever, in sme places, it was impssible t build the railway ver the frzen grund, s tunnels had t __________ (create) instead.
were needed
In sme ther places, bridges ___________ (build) t keep the railway up abve the grund. These bridges are animal-friendly and ________ (allw) animals t pass under the tracks.
As an imprtant and successful prject, the railway has ________ (increase) turism and ecnmic develpment in the area. The lessns learnt and experience gained frm building this railway will help ________ (imprve) transprt in ther similar places in the wrld.
“ be suppsed t d / be sth ”
1. 表示“应该、应当”(=shuld) 用来提出建议、劝告、要求，或描述按规则/常理应该做的事。 例：Yu are suppsed t wear a seatbelt in the car. （乘车时你应该系安全带。）
2. 表示“被期望、被认为” 描述人们对某人/某事的普遍预期、看法。 例：He is suppsed t be an expert in this field. （他被认为是这个领域的专家。）
3. 表示“本应、本该”（暗含实际未发生） 用过去式 was/were suppsed t，表示原本计划/应该做，但实际 没做。 例：The train was suppsed t arrive at 8, but it was late. （火车本应8点到，但晚点了。）
4. 否定式 be nt suppsed t 表示“不允许、不应该”，相当于 shuld nt / be nt allwed t。 例：Yu are nt suppsed t smke here.（这里不允许吸烟。）
1. 用所给动词的正确形式填空 Yu ______________________ (nt, smke) in the library. It’s against the rules.
are nt suppsed t smke
2. Yu ______ t the party if yu dn’t finish yur hmewrk first. A. are nt suppsed t cme B. were nt suppsed t cme C. are suppsed nt t cme D. were suppsed nt t cme