仁爱英语九年级上册导学案2015秋

1、unit 2 saving the earthtopic 1 pollution has caused too many problems.section a 第 1 课时班级：_ 姓名：_ 号数：_aims and demands 学习目标：掌握本课的重点词汇和短语，巩固一般过去时和现在完成时的用法和区别。能够用一般过去时和现在完成时描述过去和现在的变化。正确使用there be sth./sb. doing sth.来表达“有某人/物正在做某事”。学习重点：重点活动是1a 学习难点：能听懂描述环境变化的对话，区别一般过去时和现在完成时的用法。学习过程：step 1：导入：step 2：自学

2、检测：一. 在文中找到并划出下面的短语1.计划一次野餐_ 2. .一些化工厂_3 真是一团糟！_ 4.多可惜啊！_5 .把倒入 _ 6.一切都变了。_step3精讲点评：在文中划出下面的句子并分析1.you will see bees and butterflies dancing? 你会看见蜜蜂和蝴蝶正在跳舞的。点拨:see sb. doing sth.-看见某人正在做某事。强调事件，(延续性)行动正在进行。对比:see sb. do sth.-看见某人做某事。表示看见整个事件，(短暂性)行动的全过程，动作已经结束。总结：这样的动词还有：hear, watch, find, feel（感官动

3、词）拓展：hear sb doing sth - 听见某人正在做某事 hear sb do sth - 听见某人做某事练习:a.刚才我看见她穿过了马路。_b.刚才我看见她在跳舞。_ 2. the flowers and grass have gone！鲜花和绿草都消失了。点拨：go 在此处为不及物动词，意为“不复存在、不见了” 巩固：a. has your headache gone yet? 译：_ b. the pain has gone. 译：_3.look,there are several chemical factories pouring waste water into the

4、 stream. 看，有几家化学工厂正往小溪里排放污水。点拨(1): pourinto把往里倾倒（排放），向投入练习：a.did you pour the dirty water into the plastic bagriver? 译：_ b.the government has _ millions of yuan _ education. 政府在教育上投资数百万元。点拨(2)：waste - 废弃的，无用的(形容词) waste land_ waste water_waste - 浪费(动词) ,其反义词为save. 如: dont waste time! 译：_点拨(3)：there

5、be + sb./sth. + doing sth. 有某人或某物正在做某事 练习a. there are two people waiting for the bus at the bus stop. 译：_ b.看！有个小男孩正在树下玩耍。译：_step 4：归纳总结：一般过去时和现在完成时的用法和区别 step 5:典题训练。用所给动词的适当形式填空。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:单项选择。( ) 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