8A unit6 National disasters 教案
② simon _________________ when the snowstorm came. = __________________________________________________. ③ millie _________________ when the snowstorm came. = __________________________________________________. ④ sandy _________________ when the snowstorm came. = __________________________________________________. ※ 總結(jié)規(guī)律：句子1(延續(xù)性動(dòng)作) （過去進(jìn)行時(shí)）+ when +句子2（短暫性動(dòng)作） （一般過去時(shí)） = when +句子2（短暫性動(dòng)作），句子1（延續(xù)性動(dòng)作） （注： when也可延續(xù)性動(dòng)作） 展示三:可用while改寫例句① i came while the girl was dancing = while the girl was dancing , i came . (2)用while改寫以上第一題中的4個(gè)答句。 ①_________________________________________________. = ②_________________________________________________. = ③_________________________________________________. = ④_________________________________________________. = _________________________________________________. ※ 總結(jié)規(guī)律：句子1(短暫性動(dòng)作) （一般過去時(shí)） + while +句子2（延續(xù)性動(dòng)作） （過去進(jìn)行時(shí)） = while +句子2（延續(xù)性動(dòng)作），句子1(短暫性動(dòng)作) 展示四:根據(jù)圖形用連接兩句含有過去進(jìn)行時(shí)的句子. s1: what was she doing while we were watching tv? s2: she ______ _________ while we were watching tv. = while we were watching tv ,she _______ ______ . ※ 總結(jié)規(guī)律：句子1(延續(xù)性動(dòng)作) (過去進(jìn)行時(shí)) + while +句子2（延續(xù)性動(dòng)作） （過去進(jìn)行時(shí)） =while + 句子2(延續(xù)性動(dòng)作) , 句子1(延續(xù)性動(dòng)作). 展示五:讓兩個(gè)學(xué)生同時(shí)表演不同的動(dòng)作，其他學(xué)生用while造句。 展示六:完成課本101頁(yè)練習(xí)。核對(duì)答案并朗讀。課 堂 達(dá) 標(biāo) 檢 測(cè)
一 .用所給單詞的適當(dāng)形式填空。 1. your cousin ________(not play) basketball when i saw him. 2. when i _________(leave) home ,my sister ______(eat) breakfast. 3. when i came to see him , daniel ________(search) for some information on the internet. 4. girls ________ (dance) while boys _________ (sing). 5.when the teacher looked for them , where _______ they _____ ( play ) football. 6. when i saw you , who _______ you ________(talk) with? 二.用when 和 while填空 1.mother was cooking ______father was watching dvd last night.