八年級下冊英語第八單元第三課時(shí)電子教案

1、本課第3課時(shí)累計(jì)47課時(shí)本課課型語法課八年級英語備課組 金艷玲 Unit 8 Have you ever been to a museum?教學(xué)目標(biāo)及重難點(diǎn)教學(xué)目標(biāo)及重難點(diǎn)教教 學(xué)學(xué) 環(huán)環(huán) 節(jié)節(jié)板板 書書 設(shè)設(shè) 計(jì)計(jì)反反 思思 后后 記記教教 學(xué)學(xué) 資資 源源返回目錄知識與技能1.重點(diǎn)單詞：technology,French 2.重點(diǎn)句式：What do your parents think about our plan? She is interested in science and technology and loves to imagine what the world will b

2、e like in 50 years.過程與方法通過教師的講授和學(xué)生記筆記的形式學(xué)習(xí)現(xiàn)在完成時(shí)。情感態(tài)度與 價(jià)值觀通過本課的學(xué)習(xí)，培養(yǎng)學(xué)生的文學(xué)鑒賞能力，陶冶思想情操.教學(xué)重點(diǎn)1.現(xiàn)在完成時(shí)態(tài)的用法。2.所學(xué)過的各種時(shí)態(tài)的區(qū)別。教學(xué)難點(diǎn)各種時(shí)態(tài)的靈活運(yùn)用。返回返回目錄目錄返回目錄復(fù)習(xí)導(dǎo)入復(fù)習(xí)導(dǎo)入新知教學(xué)新知教學(xué)鞏固拓展鞏固拓展小結(jié)升華小結(jié)升華布置作業(yè)布置作業(yè)課外拓展課外拓展Step 1 Lead-inRead the following sentences we have seen.Have you read Little Women yet? Yes, I have./ No, I have

3、nt. Has Tina read Treasure Island yet? Yes, she has. She thinks its fantastic.Have you decided which book to write about yet?Yes, I have. Ive already finished reading it. It was really good.計(jì)劃用時(shí) 5分鐘二次修改教學(xué)環(huán)節(jié)Step 2 現(xiàn)在完成時(shí)用法：1.表示過去發(fā)生或已經(jīng)完成的某一動作對現(xiàn)在造成的影響或結(jié)果。e.g. Have you had your lunch yet?Yes, I have. Ive

4、 just had it. (現(xiàn)在我不餓了。)2.表示動作或狀態(tài)從過去某一時(shí)刻開始，一直延續(xù)到現(xiàn)在，而且可能還要繼續(xù)下去。e.g. I havent seen her these days. Ive known Bob for three years. Ive been at this school for over two years. 時(shí)間狀語：already, yet, just, ever, never, before。構(gòu)成：現(xiàn)在完成時(shí)是由“助動詞have / has+ 動詞的過去分詞”構(gòu)成的，規(guī)則動詞的過去分詞構(gòu)成與過去式相同，不規(guī)則動詞的過去分詞則需逐個(gè)記憶。 動詞的過去式的變化和

5、過去分詞的變化并不完全相同。我們對它們作了一個(gè)大致的分類。 (注：例子中單詞的變化順序?yàn)椋簞釉~原形 動詞的過去式 動詞的過去分詞)一.過去式和過去分詞的變化相同規(guī)則變化：計(jì)劃用時(shí) 10分鐘二次修改教學(xué)環(huán)節(jié)1.一般在動詞詞尾直接加ed。如：pick picked picked; wish wished wished; stay stayed stayed2.以不發(fā)音的e結(jié)尾的動詞后面加d。如：like liked liked; hope hoped hoped; phone phoned phoned 3.以“輔音字母 + y”結(jié)尾的動詞，變y為i，再加-ed。如：study studied s

6、tudied; hurry hurried hurried; reply replied replied.4.詞尾只有一個(gè)輔音字母的重讀閉音節(jié)動詞，要雙寫輔音字母，再加-ed。如：stop stopped stopped; clap clapped clapped不規(guī)則變化：5.以不變應(yīng)萬變。如：let let let; put put put; read read read6.若中間有雙寫e，則去掉一個(gè)e，單詞末尾再加t。如：feel felt felt; keep kept kept; sleep slept slept結(jié)尾的字母d變t。如：lend lent lent; build bu

7、ilt built; 計(jì)劃用時(shí) 10分鐘二次修改變?yōu)橐?ought或-aught結(jié)尾。如：buy bought bought; bring brought brought; catch caught caught; teach taught taught教學(xué)環(huán)節(jié)句式1.肯定句：主語 + have / has + 過去分詞 (+ 其他)2.否定句：主語 + have / has + not + 過去分詞(+ 其他)3.一般疑問句：have/ has + 主語 + 過去分詞(+ 其他)4.特殊疑問句：1) 特殊疑問詞 (不是句子主語) + have / has + 主語+過去分詞 (+ 其)2)特

8、殊疑問詞(是句子主語)+have / has+過去分詞(+ 其他)計(jì)劃用時(shí) 5分鐘二次修改教學(xué)環(huán)節(jié)1.Write the forms of the past tense and past participle: drink _ _ see _ _ find _ _ leave _ _ tell _ _2.單項(xiàng)選擇。Why is Mr. Yang still in the teachers office?Maybe he _ his work yet.A. doesnt finish B. hasnt finished C. havent finished3.Finish 4a, 4b and

9、4c.計(jì)劃用時(shí) 5分鐘二次修改教學(xué)環(huán)節(jié)Words: technology,French .Important sentences: What do your parents think about our plan? She is interested in science and technology and loves to imagine what the world will be like in 50 years.語法: 現(xiàn)在完成時(shí)構(gòu)成：have/has+動詞的過去分詞現(xiàn)在完成時(shí)的用法以及和哪些時(shí)間狀語連用，還有動詞過去分詞的變法和基本的句式。計(jì)劃用時(shí) 3分鐘二次修改教學(xué)環(huán)節(jié)1.Recite words and sentences.2.Review the grammar.計(jì)劃用時(shí) 2分鐘教學(xué)環(huán)節(jié)already和yet都可以作為現(xiàn)在完成時(shí)的標(biāo)志詞，但它們的用法不同.already一般用于肯定句中。如：We have already cleaned up our classroom.注意：already用于疑問句中時(shí)通常表示驚奇。如:Have you finished your homework already?