冀教版八年級英語下冊Unit 3課件 lesson 17

冀教版八年級英語下冊Unit3課件·最新Lesson17SavetheTigersLesson17

SavetheTigers課前自主預習課堂互動探究Unit3AnimalsAreOurFriendsThinkAboutItWherecanyouusuallyseeatiger?Doyouthinktigersneedourhelp?Whyorwhynot?課前自主預習單詞闖關(guān)1.世紀________→________(復數(shù))2．fur________3．symbol________4．勇氣；膽量________5．勇敢的；無畏的________6．chain________7．balance________(獸類的)毛century centuries

標志；象征courageLesson17

SavetheTigersbrave

鏈子；鏈條平衡；平穩(wěn)單詞闖關(guān)8.原因；動機；理由________9．disappear________→________(反義詞)10．殺死________11．砍；切；剪；割________→________(過去式)12．Decrease_____________消失；失蹤 appearreasonkillcut cut使……變小；減少Lesson17

SavetheTigers短語互譯1.atthebeginningof…____________2．dropto____________3．foodchain____________4.inbalance____________5.aswell____________在……之初下降到；跌至食物鏈保持平衡也；還Lesson17

SavetheTigers短語互譯6.處于危險狀態(tài)____________7．把……砍倒；減少

____________8．……的象征

____________9．……的數(shù)量

____________10．在……頂端

____________indanger

cutdownsymbolsof…thenumberof…atthetopof…Lesson17

SavetheTigers句型在線1.在20世紀初期，野生老虎的數(shù)量大約是100000。Atthebeginningofthe20thcentury,________________________tigersinthewildwasaround100，000.

2.近幾年來，老虎瀕臨滅絕。________________________，tigershavebeen________________________disappearing.the numberIn recent years inofdanger ofLesson17

SavetheTigers

詞匯點睛

課堂互動探究●

atthebeginningof在……之初[觀察]

Shelefthereatthebeginningofthismonth.月初她離開了這兒。[拓展]

inthebeginning意為“起初，起先”，相當于atfirst。[探究]

atthebeginningof表示“________________”，其后常接表示________的詞。beginning此處作名詞，意為“開始”。在……之初時間Lesson17

SavetheTigers活學活用

根據(jù)漢語意思完成句子這件事發(fā)生在21世紀初。Theeventhappened________________________________the21stcentury.at thebeginning ofLesson17

SavetheTigers●

Atthebeginningofthe20thcentury，thenumberoftigersinthewildwasaround100,000.在20世紀初期，野生老虎的數(shù)量大約是100000。[辨析]thenumberof與anumberof句型透視Lesson17

SavetheTigers詞條含義及用法例句thenumberof意為“……的數(shù)量”，后接可數(shù)名詞的復數(shù)形式，作主語時，謂語動詞用單數(shù)形式。Thenumberofthestudentsintheroomis20.房間里學生數(shù)量是20。Lesson17

SavetheTigers詞條含義及用法例句anumberof意為“許多”，相當于many,可被large,small,great等修飾，后接可數(shù)名詞的復數(shù)形式，作主語時，謂語動詞用復數(shù)形式。Agreatnumberofgirlslikeshoppingonline.很多女孩喜歡網(wǎng)購。Lesson17

SavetheTigersFillintheblanks.1._____________studentsisabouttwenty.(……的數(shù)量)2._____________workersinthefactorycomefromthecountryside.(許多)ThenumberofAnumberof3.Thenumberofthestudentsinourclass____(be)fifty.4.Anumberofstudentsinourclass____(be)fromChina.5.Thenumberofpagesinthisbook____(be)60.isareis活學活用

2017·六盤水Thenumberofthestudents________over2，000inourschool.A.is

B.areC.was D.wereA【解析】考查主謂一致。thenumberof…意為“……的數(shù)量”，作主語時謂語動詞用單數(shù)形式。故選A。Lesson17

SavetheTigers3.Asforestsdisappear,tigerslosetheirhomes.隨著森林的消失，老虎失去了它們的家園。as在句中作連詞，引導狀語從句，意為“隨著，當……的時候”。Asthesunrose,thefogdisappeared.Asshelefttheroom,sherememberedthatbook.◆英漢互譯1.他們班的學生數(shù)是40.___________________________________thestudentsintheirclassis40.2.動物對環(huán)境很重要。Animalsarevery___________________________theenvironment.3.老虎住在什么地方?_________________________tigerslive?4.很多動物正在消失。你知道為什么嗎？

Manyanimals_____________________