剑桥顶级教材unlock 3级课件-Unit2-LS-V+L1.pptxVIP

watchandlisten1.Whydopeoplebuildwindturbines?2.Haveyoueverseenwindturbines?Where?Describethem.

WINDTURBINESWindturbinesaremostoftenusedtogenerateelectricity.Asingleturbineforthehomecanproducehalfofthepowerneededinthehomeeveryyear.Adisadvantagetowindturbinesisthattheycannotbeusedinacrowdedresidentialareaduetothenoisetheymakeandthespacerequiredtobuildthem.

G1G2G3Pairwork

truefalsetheseatruewindyfalsetrue

121751203000500,000

Repeating-notetaking

LISTENING1

limitedadj.providev.solutionn.alternativeadj.environmentaladj.systemn.resourcen.crisisn.

/w//j//j//w/

1.元音与元音连读时添加/w/音，当两个不同的元音连读时，如果前一个元音是/u/、/au/或者/?u/，则在两个元音中间加入半元音/w/。1．Howinteresting!hau(w)intr?stiη2．Let’sgoong?u(w)a:nLinkingwords

2.元音与元音连读时加/j/音，当两个不同的元音连读时，如果前一个元音是/i/、/ei/、/ai/或/i/，则在两个元音中间加入半元音/j/1.???stayawakesteij?weik2.??tieitup.taij?tΛp

1.growingfruitsandvegetablesusingsunlightandseawater.2.1amanpickingtomatoesinagreenhouse.2.2Thepicture/diagramshowshowseawaterhasitssaltremovedsoitcanbeusedtogrowfruitsandvegetables.Solarpowerisusedonthisfarm.

WHILELISTENING

23456

100sun(sea)water16010，0001:17environmentshore0:230:23alineofmirrorsreflectsheatfromthesun主动变被动….isat…=reaches2:17Theirnegativeeffectontheenvironmentisminimal

dacb