【优质公开课】Unit5 Power of ideas Grammar Focus课件2026—2027学年人教版九年级英语上册

这是一份九年级上册（2024）Grammar Focus评优课课件ppt，共23页。PPT课件主要包含了Lead-in，connects，were used，be created，were built，allow ，increased，Show time，is cleaned，was made等内容，欢迎下载使用。
By the end f this lessn, we will be able t：1. recgnize the structure f the passive vice and understand when t use the passive vice in English.2. cmplete grammar exercises in the textbk and use the passive vice t describe inventins.3. talk abut hw inventins are made using the passive vice.
Learning Objectives
Guess the Inventin
1. Lk at the picture clues f inventin parts.2. Guess what inventin it is.3. Say the name in English.4. Talk with yur partner: What is it used fr?
It helps peple talk t thers far away. It was invented in the 19th century.
It gives us light. Thmas Edisn imprved it. It was made f glass and metal.
It has tw wheels. It desn't use fuel. It is gd fr exercise and the envirnment.
It's in yur pcket. Yu can call, text, play games and learn with it.
Read the sentences. Circle the verbs in the passive vice.
Think: What d these sentences have in cmmn?
These sentences all describe what happens t the subject, nt wh des the actin.They all use the structure: be verb + past participle.They fcus n the actin being dne t smething, nt wh is ding it.
The passive vice
Structure f the Passive Vice
Active vs Passive Vice
The passive vice in different tenses
The passive vice acrss tenses
The passive vice
When d we use the passive vice?
1. When the der (wh des the actin) is unknwn r unimprtant:My bicycle was stlen.2. When we want t fcus n the actin r the receiver f the actin:The building was cmpleted in 2020.3. In frmal r scientific writing:The experiment was cnducted carefully.4. When describing prcesses:The paper is cut int small pieces.5. When describing inventins, manufacturing prcesses, r histrical events:Penicillin was discvered by Alexander Fleming.
Cmmn passive sentence patterns
• It is said that... (据说)• It is believed that... (人们相信)• It is knwn that... (众所周知)• It is reprted that... (据报道)• It is expected that... (预计)
1.The telephne ____________ (invent) by Alexander Bell in all ver the wrld ___________ (cnnect) t each ther thrugh the wrd "rbt" ___________ (intrduce) fr the first time in a play in wasn't suppsed t make such a lud nise when the buttn _____________ (press) t start the is believed that the wrld's ldest wheel ________ (find) in Eastern Eurpe.
Cmplete the sentences with the crrect frms f the verbs in brackets.
Let’s practise
was invented
are cnnected
was intrduced
was pressed
注意时间状语和主谓一致。先确定主语是单数还是复数，再根据时间状语判断时态。
The Qinghai-Xizang Railway was cmpleted in 2006. It 1. ________ (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 2. ____________ (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 3. __________ (use) t keep the grund hard. Hwever, in sme places, it was
Cmplete the passage with the crrect frms f the verbs in brackets. Make a prfile f the Qinghai-Xizang Railway.
were needed
impssible t build the railway ver the frzen grund, s tunnels had t 4. ________ (create) instead. In sme ther places, bridges 5. __________ (build) t keep the railway up abve the grund. These bridges are animal-friendly and 6. ______ (allw) animals t pass under the tracks.
As an imprtant and successful prject, the railway has 7. ________ (increase) turism and ecnmic develpment in the area. The lessns learnt and experience gained frm building this railway will help 8. _________ (imprve) transprt in ther similar places in the wrld.
• Wrld's highest railway (最高铁路)• Length: 1,956 km (长度)• Tanggula Pass: 5,072 m abve sea level (唐古拉山口海拔)• Cmpleted in 2006 (建成时间)• Overcame frzen grund challenges (克服冻土难题)• Animal-friendly bridges (动物友好型桥梁)
Describe an Inventin
Inventin Reprters
Task: Yur grup is a news team. Chse ONE inventin and prepare a shrt "news reprt" (3 sentences) using the passive vice.Time: 5 minutes’ preparatin, 1 minute’s presentatin per grup.Requirements: Each reprt must include at least 3 sentences in the passive vice.
Every great inventin starts with a simple idea. Yur ideas can change the wrld t.
Fill in the blanks.
1.The laptp ___________ (design) in bks ___________ (write) by this rm ___________ (clean) every cake __________ (make) by my mther prblem ____________ (slve) sn.6. English _________ (speak) in many cuntries.
is designed
were written
will be slved
Change t the passive vice.
1.They built this schl in use cmputers all ver the will finish the wrk is cking dinner have planted many trees.___________________________________________________
This schl was built in 1990.
Cmputers are used all ver the wrld.
The wrk will be finished tmrrw.
Dinner is being cked nw.
Many trees have been planted.
Use the prmpts t write sentences in the passive vice.
1.The telephne / invent / 1876____________________________________________________2.English / speak / many cuntries____________________________________________________3.This cmputer / make / Japan___________________________________________________4.The new hspital / build / next year__________________________________________________5.The windw / break / yesterday_________________________________________________
The telephne was invented in 1876.
English is spken in many cuntries.
This cmputer was made in Japan.
The new hspital will be built next year.
The windw was brken yesterday.