學(xué)習(xí)比較級和最高級的用法

1、案例：發(fā)現(xiàn)，歸納策略案例特點(diǎn)：通過發(fā)現(xiàn)、歸納和實(shí)踐等方法，學(xué)習(xí)比較級和最高級的用法。教學(xué)內(nèi)容：語法教學(xué)：比較級和最高級教學(xué)目標(biāo)：識別比較級和最高級，知道它們的構(gòu)成，能理解它們在文段中的意義。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，并使用比較級和最高級陳述它們。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

2、幻燈片，并描述其內(nèi)容?；脽羝系娜粍游锓謩e是烏龜、豬和狗，三只動物在賽跑，烏龜最慢、豬比烏龜快，狗對快。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 shortest

3、long 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：通過上面的引導(dǎo)學(xué)生對比較級和最高級有了

4、初步的認(rèn)識，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和最高級形式。（見附件1）環(huán)節(jié)點(diǎn)評：通過典型知識學(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)了解它們在真實(shí)文段中的使用方法。Step 5. 請學(xué)生們使用所學(xué)習(xí)的語法講古代孔融讓梨的故事。環(huán)節(jié)點(diǎn)評：老師為學(xué)生運(yùn)用語言提供了真實(shí)的情景。Step 6. 教師發(fā)練習(xí)，學(xué)生通過做練習(xí)歸納總結(jié)形容詞比較級和最高級的形式。（見附件2）環(huán)節(jié)點(diǎn)評：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

5、過練習(xí)的方法提煉語法規(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，只是不提倡通過教師灌的途徑處理基礎(chǔ)知識。附件1：A Happy SundayLast 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 th

6、e park, 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