案例10發(fā)現(xiàn)歸納策略

1、案例10案例特點(diǎn)： 通過(guò)發(fā)現(xiàn)、歸納和實(shí)踐等方法，學(xué)習(xí)比較級(jí)和最高級(jí)的用法。教學(xué)內(nèi)容：語(yǔ)法教學(xué)：比較級(jí)和最高級(jí)教學(xué)目標(biāo)：識(shí)別比較級(jí)和最高級(jí)，知道它們的構(gòu)成，能理解它們?cè)谖亩沃械囊饬x。教學(xué)步驟：Step 1. 呈現(xiàn)將三個(gè)大小不等的瓶子展示給學(xué)生，并使用比較級(jí)和最高級(jí)陳述它們。Herere three bottles of drink. This bottle is big. Bottle two is bigger than bottle one. Bottle three is the biggest of the three.老師描述時(shí)將畫線句子出示在屏幕上。 Step 2. 老師出示幻燈片，

2、并描述其內(nèi)容?；脽羝系娜粍?dòng)物分別是烏龜、豬和狗，三只動(dòng)物在賽跑，烏龜最慢、豬比烏龜快，狗對(duì)快。另一張幻燈片上有道數(shù)學(xué)題，一道是初中題，另一道是高中題，還有一道是大學(xué)數(shù)學(xué)題，底下的文字是：The first problem is difficult. The second problem is more difficult. The third problem is the most difficult of the three. Step 3. 老師將一張表格發(fā)給學(xué)生，讓他們找出其中的規(guī)則?；脽羝瑑?nèi)容：tall taller tallestshort shorter shortestlon

3、g longer longesteasy easier easiesthappy happier happiestearly earlier earliestsad sadder saddestbig bigger biggestnice nicer nicestlater later latestinteresting more interesting most interestingbeautiful more beautiful most beautifuldifficult more difficult most difficult環(huán)節(jié)點(diǎn)評(píng)：通過(guò)上面的引導(dǎo)學(xué)生對(duì)比較級(jí)和最高級(jí)有了初步的

4、認(rèn)識(shí)，為了使學(xué)生盡快地抓住它們的辯護(hù)規(guī)則，老師又將一批典型的詞的變化形式發(fā)給學(xué)生，讓學(xué)生自己觀察總結(jié)規(guī)律。Step 4. 教師將學(xué)生分成小組，將閱讀材料發(fā)給每個(gè)組一份，閱讀短文并畫出比較級(jí)和最高級(jí)形式。(見附件1)環(huán)節(jié)點(diǎn)評(píng)：通過(guò)典型知識(shí)學(xué)習(xí)，老師又將文段發(fā)給學(xué)生，目的是讓學(xué)生再次熟悉規(guī)則，同時(shí)了解它們?cè)谡鎸?shí)文段中的使用方法。Step 5 請(qǐng)學(xué)生們使用所學(xué)習(xí)的語(yǔ)法講古代孔融讓梨的故事。環(huán)節(jié)點(diǎn)評(píng)：老師為學(xué)生運(yùn)用語(yǔ)言提供了真實(shí)的情景。Step 6 教師發(fā)練習(xí)，學(xué)生通過(guò)做練習(xí)歸納總結(jié)形容詞比較級(jí)和最高級(jí)的形式。（見附件2）環(huán)節(jié)點(diǎn)評(píng)：在學(xué)生觀察、感悟、并試著運(yùn)用之后，教師在最后的環(huán)節(jié)指導(dǎo)學(xué)生通過(guò)練習(xí)的方

5、法提煉語(yǔ)法規(guī)律，這種方法是值得提倡的。課標(biāo)并沒有忽略基礎(chǔ)知識(shí)，只是不提倡通過(guò)教師灌的途徑處理基礎(chǔ)知識(shí)。附件1: A Happy Sunday Last Sunday I with my parents went to the park for a happy day. That morning I got up earlier than before, then I went to buy something to eat. My parent said the food was more expensive, but I didnt think so. On the way to the p

6、ark, I felt different. All the buildings ere taller, all the people were happier, all the boys ere more handsome, al the girls were more beautiful. When we played in the park, my father told me that most interesting story, and it made laugh and laugh. We had an easier lunch, just bread and coke, but I didnt feel sad because my father said “we will have a better supper.” That Sunday was my happiest Sunday. 附件2: Study the Samples:happy-happier-happiest; large-larger-largest; smart-smarter-smartest; thin-thinner-thinnestTry Yourself after the Sampl