外研版 (2019)必修 第三冊(cè)Unit 6 Disaster and hope教學(xué)設(shè)計(jì)

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本課時(shí)涉及的部分是語(yǔ)言知識(shí)運(yùn)用，包括語(yǔ)法“Ellipsis——省略”，Types f natural disasters和 Extreme weather cnditins三部分。
語(yǔ)法“Ellipsis——省略”講解省略結(jié)構(gòu)的原則及其用法。
Types f natural disasters介紹了幾種常見(jiàn)的自然災(zāi)害，包括：干旱、臺(tái)風(fēng)、暴風(fēng)雪、海嘯、野火、雪崩和地震。通過(guò)介紹這幾種自然災(zāi)害，讓學(xué)生進(jìn)一步認(rèn)識(shí)到災(zāi)害天氣的影響和破壞性。
Extreme weather cnditins部分主要以聽(tīng)、說(shuō)的方式講述了人類(lèi)從數(shù)千年前就盡力預(yù)測(cè)天氣狀況，從商朝的甲骨文到西方亞里土多德的天氣形成理論，再到現(xiàn)在的衛(wèi)星和計(jì)算機(jī)技術(shù)的運(yùn)用，使天氣預(yù)報(bào)一步步精準(zhǔn)化。
課時(shí)目標(biāo)
1.掌握本課時(shí)的重點(diǎn)詞匯 frecast，reliable，rescue，emergency，exceptinally，claim，crisis，threaten, cmpare…with...，leave ut，head fr，cnsist f，result in，lead t，pay attentin t的用法，并能在真實(shí)語(yǔ)境中靈活運(yùn)用。
2.通過(guò)學(xué)習(xí)省略，掌握省略結(jié)構(gòu)及用法。
3.通過(guò)閱讀有關(guān)自然災(zāi)害的種類(lèi)、極端天氣狀況，加深對(duì)單元主題的理解，擴(kuò)大知識(shí)面。
4. 極端天氣破壞性極強(qiáng)，號(hào)召學(xué)生從自我做起，從身邊的小事做起，綠色出行，減少碳足跡。
重點(diǎn)難點(diǎn)：
重點(diǎn)：
省略的含義和用法。
難點(diǎn)：
辨別語(yǔ)境，分析句子成分，正確運(yùn)用省略結(jié)構(gòu)。
教學(xué)準(zhǔn)備：
教師準(zhǔn)備：
1.準(zhǔn)備好該部分內(nèi)容的PPT和音頻材料。
2.準(zhǔn)備好有關(guān)自然災(zāi)害和極端天氣狀況的視頻材料。
學(xué)生準(zhǔn)備：
1.課前查找描寫(xiě)極端天氣的不同詞匯，并能用簡(jiǎn)短的英語(yǔ)描述不同的極端天氣狀況。
2.上網(wǎng)查找含有省略結(jié)構(gòu)的句子，體會(huì)其用法。
3.預(yù)習(xí)課本P65~67的內(nèi)容，找出該部分的新詞匯，并根據(jù)上下文猜測(cè)其含義。
教學(xué)過(guò)程：
Step I Grammar
Ellipsis——省略
【備注】語(yǔ)法知識(shí)點(diǎn)講解詳見(jiàn)第二教案“重點(diǎn)語(yǔ)法精講”。
1. D Activity 1 n Page 65 f the textbk.
2. Give enugh examples f the usages f Ellipsis.
(1) Tie a bandage tightly ver his sprained ankle when (it is) necessary.
(2) Wd gives ff much smke while (wd is) burning.
(3) Her pinin, whether (it is) right r wrng, will be cnsidered.
(4) After tw hurs they became quieter (than they had been).
(5) We have decided t leave tmrrw, n matter what happens (tmrrw).
(6) The sprts meeting is mre exciting than（it is）expected.
Guide students t sum up the usages f Ellipsis.
Then ask students t give examples which they searched frm the Internet.
3.Finish Activity 2&3 n Page 65.
（1）Read the paragraph and find ut what wrds have been remved befre r after the underlined wrds.
Keys:
（后）frecast the weather
（后）is n the way
（后）than usual
（前）lk
（后）is ging t happen
（后）is ging t happen
（2）Remve wrds frm the news reprt t make it mre cncise.
Keys：（略）
Step Ⅱ Types f natural disasters
1. Lk at the pictures and answer the questins.
（1）Which ne d yu think is the mst dangerus？
（2）Can yu name sme big natural disasters in histry？
2.Cmplete the reprts with the wrds in Activity 4. Pay attentin t the wrds describing natural disasters.
Keys
1 typhn 2 wildfire 3 avalanche 4 earthquake
5 tsunami 6 blizzard 7 drught
3.Wrk in pairs. Ask students t talk abut a recent natural disaster they have heard abut r seen n the news.
Step Ⅲ Extreme weather cnditins
1.Read “Did Yu knw?” and learn abut things abut extreme weather cnditins.
2.D Activity 7 & 8 n Page 67.
（1）Listen t the weather frecast and match the weather symbls t the lcatins n the map.
（2）Listen again and cmplete the frm.
Keys:（略）
3.D Activity 9 & 10 n Page 67.
（1）Act ut the cnversatin t talk abut an extreme weather cnditin.
（2）Chse anther extreme weather cnditin and have a similar cnversatin.
【設(shè)計(jì)意圖】該部分基本按照課本順序設(shè)置活動(dòng)，由淺入深，逐層加深難度，鍛煉了學(xué)生讀、聽(tīng)、寫(xiě)、說(shuō)的能力。首先，通過(guò)讀 “Did Yu knw？”部分，了解人們對(duì)天氣的預(yù)測(cè)情況。然后，通過(guò)聽(tīng)錄音，先解決淺層的理解，再記錄聽(tīng)力的要點(diǎn)，完成 Activity 7和8。接下來(lái)是說(shuō)的環(huán)節(jié)，通過(guò)語(yǔ)言輸入，學(xué)生頭腦中對(duì)自然災(zāi)害、極端天氣狀況有了初步認(rèn)識(shí)，同時(shí)掌握了該部分常見(jiàn)詞匯和句型，再仿照上述內(nèi)容進(jìn)行對(duì)話(huà)練習(xí)。整個(gè)環(huán)節(jié)內(nèi)容不多，但環(huán)環(huán)相扣，遵循了語(yǔ)言的認(rèn)知規(guī)律，設(shè)置科學(xué)、合理。
Step IV Summing up
總結(jié)省略的結(jié)構(gòu)和用法，并注意該部分新學(xué)詞匯的運(yùn)用。
Step V Hmewrk
1. Give the students sme exercises abut ellipsis.
2.Master the usages f the new vcabulary.
板書(shū)設(shè)計(jì)：
Unit 1 Disaster and hpe
Perid II Using language
I. Grammar
1. D Activity 1 n Page 65 f the textbk.
2. Give enugh examples f the usages f Ellipsis.
(1) Tie a bandage tightly ver his sprained ankle when (it is) necessary.
(2) Wd gives ff much smke while (wd is) burning.
(3) Her pinin, whether (it is) right r wrng, will be cnsidered.
(4) After tw hurs they became quieter (than they had been).
(5) We have decided t leave tmrrw, n matter what happens (tmrrw).
(6) The sprts meeting is mre exciting than（it is）expected.
Guide students t sum up the usages f Ellipsis.
Then ask students t give examples which they searched frm the Internet.
3.Finish Activity 2&3 n Page 65.
Ⅱ. Types f natural disasters
1. Lk at the pictures and answer the questins.
2.Cmplete the reprts with the wrds in Activity 4. Pay attentin t the wrds describing natural disasters.
3.Wrk in pairs. Ask students t talk abut a recent natural disaster they have heard abut r seen n the news.
Ⅲ. Extreme weather cnditins
1.Read “Did Yu knw?” and learn abut things abut extreme weather cnditins.
2.D Activity 7 & 8 n Page 67.
3.D Activity 9 & 10 n Page 67.
IV. Summing up
V. Hmewrk