冀教版八年级英语下册Unit 3课件 lesson 17

冀教版八年级英语下册Unit3课件·最新Lesson17SavetheTigersLesson17

SavetheTigers课前自主预习课堂互动探究Unit3AnimalsAreOurFriendsThinkAboutItWherecanyouusuallyseeatiger?Doyouthinktigersneedourhelp?Whyorwhynot?课前自主预习单词闯关1.世纪________→________(复数)2．fur________3．symbol________4．勇气；胆量________5．勇敢的；无畏的________6．chain________7．balance________(兽类的)毛century centuries

标志；象征courageLesson17

SavetheTigersbrave

链子；链条平衡；平稳单词闯关8.原因；动机；理由________9．disappear________→________(反义词)10．杀死________11．砍；切；剪；割________→________(过去式)12．Decrease_____________消失；失踪 appearreasonkillcut cut使……变小；减少Lesson17

SavetheTigers短语互译1.atthebeginningof…____________2．dropto____________3．foodchain____________4.inbalance____________5.aswell____________在……之初下降到；跌至食物链保持平衡也；还Lesson17

SavetheTigers短语互译6.处于危险状态____________7．把……砍倒；减少

____________8．……的象征

____________9．……的数量

____________10．在……顶端

____________indanger

cutdownsymbolsof…thenumberof…atthetopof…Lesson17

SavetheTigers句型在线1.在20世纪初期，野生老虎的数量大约是100000。Atthebeginningofthe20thcentury,________________________tigersinthewildwasaround100，000.

2.近几年来，老虎濒临灭绝。________________________，tigershavebeen________________________disappearing.the numberIn recent years inofdanger ofLesson17

SavetheTigers

词汇点睛

课堂互动探究●

atthebeginningof在……之初[观察]

Shelefthereatthebeginningofthismonth.月初她离开了这儿。[拓展]

inthebeginning意为“起初，起先”，相当于atfirst。[探究]

atthebeginningof表示“________________”，其后常接表示________的词。beginning此处作名词，意为“开始”。在……之初时间Lesson17

SavetheTigers活学活用

根据汉语意思完成句子这件事发生在21世纪初。Theeventhappened________________________________the21stcentury.at thebeginning ofLesson17

SavetheTigers●

Atthebeginningofthe20thcentury，thenumberoftigersinthewildwasaround100,000.在20世纪初期，野生老虎的数量大约是100000。[辨析]thenumberof与anumberof句型透视Lesson17

SavetheTigers词条含义及用法例句thenumberof意为“……的数量”，后接可数名词的复数形式，作主语时，谓语动词用单数形式。Thenumberofthestudentsintheroomis20.房间里学生数量是20。Lesson17

SavetheTigers词条含义及用法例句anumberof意为“许多”，相当于many,可被large,small,great等修饰，后接可数名词的复数形式，作主语时，谓语动词用复数形式。Agreatnumberofgirlslikeshoppingonline.很多女孩喜欢网购。Lesson17

SavetheTigersFillintheblanks.1._____________studentsisabouttwenty.(……的数量)2._____________workersinthefactorycomefromthecountryside.(许多)ThenumberofAnumberof3.Thenumberofthestudentsinourclass____(be)fifty.4.Anumberofstudentsinourclass____(be)fromChina.5.Thenumberofpagesinthisbook____(be)60.isareis活学活用

2017·六盘水Thenumberofthestudents________over2，000inourschool.A.is

B.areC.was D.wereA【解析】考查主谓一致。thenumberof…意为“……的数量”，作主语时谓语动词用单数形式。故选A。Lesson17

SavetheTigers3.Asforestsdisappear,tigerslosetheirhomes.随着森林的消失，老虎失去了它们的家园。as在句中作连词，引导状语从句，意为“随着，当……的时候”。Asthesunrose,thefogdisappeared.Asshelefttheroom,sherememberedthatbook.◆英汉互译1.他们班的学生数是40.___________________________________thestudentsintheirclassis40.2.动物对环境很重要。Animalsarevery___________________________theenvironment.3.老虎住在什么地方?_________________________tigerslive?4.很多动物正在消失。你知道为什么吗？

Manyanimals_____________________