仁愛英語九年級上冊導學案2015秋

1、unit 2 saving the earthtopic 1 pollution has caused too many problems.section a 第 1 課時班級：_ 姓名：_ 號數(shù)：_aims and demands 學習目標：掌握本課的重點詞匯和短語，鞏固一般過去時和現(xiàn)在完成時的用法和區(qū)別。能夠用一般過去時和現(xiàn)在完成時描述過去和現(xiàn)在的變化。正確使用there be sth./sb. doing sth.來表達“有某人/物正在做某事”。學習重點：重點活動是1a 學習難點：能聽懂描述環(huán)境變化的對話，區(qū)別一般過去時和現(xiàn)在完成時的用法。學習過程：step 1：導入：step 2：自學

2、檢測：一. 在文中找到并劃出下面的短語1.計劃一次野餐_ 2. .一些化工廠_3 真是一團糟！_ 4.多可惜??！_5 .把倒入 _ 6.一切都變了。_step3精講點評：在文中劃出下面的句子并分析1.you will see bees and butterflies dancing? 你會看見蜜蜂和蝴蝶正在跳舞的。點撥:see sb. doing sth.-看見某人正在做某事。強調事件，(延續(xù)性)行動正在進行。對比:see sb. do sth.-看見某人做某事。表示看見整個事件，(短暫性)行動的全過程，動作已經結束?？偨Y：這樣的動詞還有：hear, watch, find, feel（感官動

3、詞）拓展：hear sb doing sth - 聽見某人正在做某事 hear sb do sth - 聽見某人做某事練習:a.剛才我看見她穿過了馬路。_b.剛才我看見她在跳舞。_ 2. the flowers and grass have gone！鮮花和綠草都消失了。點撥：go 在此處為不及物動詞，意為“不復存在、不見了” 鞏固：a. has your headache gone yet? 譯：_ b. the pain has gone. 譯：_3.look,there are several chemical factories pouring waste water into the

4、 stream. 看，有幾家化學工廠正往小溪里排放污水。點撥(1): pourinto把往里傾倒（排放），向投入練習：a.did you pour the dirty water into the plastic bagriver? 譯：_ b.the government has _ millions of yuan _ education. 政府在教育上投資數(shù)百萬元。點撥(2)：waste - 廢棄的，無用的(形容詞) waste land_ waste water_waste - 浪費(動詞) ,其反義詞為save. 如: dont waste time! 譯：_點撥(3)：there

5、be + sb./sth. + doing sth. 有某人或某物正在做某事 練習a. there are two people waiting for the bus at the bus stop. 譯：_ b.看！有個小男孩正在樹下玩耍。譯：_step 4：歸納總結：一般過去時和現(xiàn)在完成時的用法和區(qū)別 step 5:典題訓練。用所給動詞的適當形式填空。1. when i entered the room, i saw maria _ (read) a chinese book.2. what a shame! the flowers and trees in the park _ (go

6、).3. everything _ (change) in the past few years.4. pandas dont have enough bamboos _ (eat) now because of the pollution.5. where have they been? they _ (be) to the great wall. they _ (have) a good time there the day before yesterday.step 6：homework:單項選擇。( ) 1. look! there are some boys _ on the pla

7、yground. a. play football b. are playing football c. playing football d. plays football( ) 2. im sorry i cant go shopping with you. i am ill. _ a. what a mess! b. what a shame! c. what a pity! d. b and c( ) 3. dont _ water. we must save every drop of it. sorry, i wont do it again. a. waste b. throw

8、c. play d. leave( ) 4. kangkang said he _bees dancing here in the future.a will see b see c sees d would see( ) 5.we _with our noses. a smell b look c sound d taste( ) 6. _pollution can cause trouble.a much too b too much c few d too many ( ) 7.time is knowledge , and time is money, dont _it , please. a influence b