八年級(jí)英語(yǔ)Unit4B 2-2f導(dǎo)學(xué)案

導(dǎo)學(xué)案科目英語(yǔ)課題Unit4B2——2f授課老師王曼華班級(jí)上課時(shí)間簽審領(lǐng)導(dǎo)節(jié)次學(xué)習(xí)目標(biāo)及重難點(diǎn)1、能夠熟記并正確使用下列句型：Whatwereyoudoingwhen..?Whilethegirlwasshopping,therainstormcame?（重）2、掌握when和while引導(dǎo)的主從復(fù)合句。（難）教學(xué)過(guò)程【預(yù)習(xí)內(nèi)容】：自主學(xué)習(xí).在暴風(fēng)雨來(lái)臨時(shí)2,等公交.步行回家4,到目前為止.一一當(dāng)暴風(fēng)雨來(lái)臨的時(shí)候你正在干什么？一_我正在公交站等公交。.一一當(dāng)暴風(fēng)雨來(lái)臨的時(shí)候孩子們?cè)谀睦?？一_他們?cè)诮稚稀?.ButIcouldheartheheavyrainagainstmybedroomwindow.ThentherainsuddenlystartedandIgotallwet.Manypeoplewerecaughtintherainyesterday.合作探究Whatwerepeopledoingyesterdayatthetimeoftherainstorm?昨天暴風(fēng)雨來(lái)臨的時(shí)候人們?cè)谧鍪裁?？【指點(diǎn)迷津】atthetimeof….…意為"在….…時(shí)候”，后面接名詞或名詞性短語(yǔ)。試身手】ItwassunnythetimeofmyfirsttriptoHongKong.A.atB.inC.onWhatwereyoudoingwhentherainstormcame?【指點(diǎn)迷津】when與while用法辨析when和while都可以做連詞，意為“當(dāng)????????的時(shí)候”，都可以用來(lái)引導(dǎo)時(shí)間狀語(yǔ)從句，他們的具體用法如下：?when的用法：①when可以指時(shí)間點(diǎn)也可以指時(shí)間段,其從句的謂語(yǔ)動(dòng)詞可以是延續(xù)性的也可以是非延續(xù)性的。WhenIarrivedatthestation,theywerewaitingforme.②when引導(dǎo)的從句的謂語(yǔ)動(dòng)作可以與主句的謂語(yǔ)動(dòng)作同時(shí)發(fā)生，也可以彼此先后發(fā)生。Whenhefinishedhishomework,heplayedgames.WhenIgottothemuseum,thedoorwasclosed.③當(dāng)主句是一般將來(lái)時(shí)態(tài)時(shí)，從句用一般現(xiàn)在時(shí)。I'IIcallyouwhenIgetthere.?while的用法：①while指時(shí)間段，其從句的謂語(yǔ)動(dòng)詞必須是延續(xù)性的。WhileIwaswaitingforthebus,Imether.②強(qiáng)調(diào)主從句動(dòng)作同時(shí)進(jìn)行時(shí)，常用while引導(dǎo)從句。此時(shí)主從句都用進(jìn)行時(shí)。Theywereflyingkiteswhilewewereclimbingmountains.③強(qiáng)調(diào)主句動(dòng)作發(fā)生時(shí)，從句動(dòng)作正在進(jìn)行，常用while引導(dǎo)從句。主句常用一般過(guò)去時(shí)或一般現(xiàn)在時(shí)，從句常用進(jìn)行時(shí)2)完成書上P33la。1)根據(jù)漢語(yǔ)提示或首字母完成下列各句。Accordingtoarinthenewspaper,thebasketballstarwasseriouslyinjured(受傷).Look,it'srainingh?Iamafraidwecan'tgoswimming.gotuplatethismorningbecausemyawasbrokenanditdidn'twakemeup.NoonewasathomebuttheTVsetwason.Hefelts.Don'tlookoutofw.Pleaselookatthebackboard.Therewasno1intheroom,soitwassodark.2)過(guò)去進(jìn)行時(shí)，語(yǔ)法練習(xí)：用所給動(dòng)詞的適當(dāng)形式填空：We(wash)ourclothesatsixyesterdayevening.WhileAnn(talk)withherdeskmate,theteachercamein.Look!Mary(clean)theroom.-Whatyou(talk)aboutjustnow?-Weweretalkingaboutthemovie.They(move)toParislastmonth.6?He(read)anovelfrom8to12yesterdaymorning.Whathe(do)atfiveo'clockyesterdayafternoon.He(watch)TVwhenIcamein.She(do)herhomeworkwhilehermother(cook).He(wait)formewhenthetrainarrived.【課后小結(jié)】(3分)when與while用法when和while都可以做連詞，意為“當(dāng)….?…的時(shí)候”，都可以用來(lái)引導(dǎo)時(shí)間狀語(yǔ)從句，?when的用法：①when可以指時(shí)間點(diǎn)也可以指時(shí)間段，其從句的謂語(yǔ)動(dòng)詞可以是延續(xù)性的也可以是非延續(xù)性的。②when引導(dǎo)的從句的謂語(yǔ)動(dòng)作可以與主句的謂語(yǔ)動(dòng)作同時(shí)發(fā)生，也可以彼此先后發(fā)生。③主句是一般將來(lái)時(shí)態(tài)時(shí)，從句用一般現(xiàn)在時(shí)。?while的用法：①while指時(shí)間段，其從句的謂語(yǔ)動(dòng)