2018届九年级英语全册Unit13We’retryingtosavetheearth第1课时学案.docx

Unit 13 Were trying to save the earth! Section A (1a2d) 【学习目标】1. 学习并掌握下列单词：litter, bottom, fisherman, coal, public, ugly, advantage, cost, wooden, plastic2. 能正确使用以下常用表达：the bottom of, be full of, used to do sth., play a part in doing sth., clean it up, be badly polluted, too much rubbish and waste, turninto , cut down, take the bus or subway, instead of, remember to do sth., make a difference, lead to3. 能熟练掌握并使用下列重点句式：1) Even the bottom of the river was full of rubbish.2) It used to be so clean!3) Everyone in this town should play a part in cleaning it up!4) The air has become really polluted around here. Im really getting worried.5) To cut down air pollution, we should take the bus or subway instead of driving.6) Our actions can make a difference and lead to a better future!【重点难点】Talk about pollution and environmental protection.Use what we have learned to talk about pollution and environmental protection.【新知预习】I. 根据句意及词首字母完成单词。 1. Even the b_ of the river was full of rubbish.2. People are l_ in the river. 3. Other a_ of bike riding are that its good for health and it doesnt cost anything!4. I never take w_ chopsticks or plastic forks when I buy takeaway food. 5. Our actions can make a d_ and lead to a better future!【课堂探究】1. used to(1) used to的意思是“过去经常”，其中的to是不定式符号，不是介词，所以其后接动词原形(不接动名词)。如：He used to live in Paris.他过去一直住在巴黎。 (2) used to与be used to的用法比较used to意为“过去经常”，其中的to是不定式符号，后接动词原形。如：He used to live in Paris.他过去一直住在巴黎。be used to意为“习惯于”，其中的to是介词，后接动名词。如：He is used to living in the country.他已习惯于住在乡下。【针对练习】用used to和be used to填空 I _ get up late, but now I _ getting up early.2. should的用法：should后接动词原形。1）表示“应该，应当” You should help your mother with the housework. 你应该帮你母亲做家务。2）表示“可能，该(=will probably) ”He should arrive soon他可能很快就到了。3) should与ought to的比较 除表示“万一”“竟然”等只能用should外，表示“应该，应当”“可能”等，两者可互换，只是ought to的语气稍重。如：You ought to/should work harder than that. 你应当更努力地工作。 should 强调主观看法，而 ought to 强调客观要求。如：We ought to go and see my mother in hospital tomorrow, but I dont think we will. 我们按理应当在明天去看看住院的母亲的，但我主认为我们不会去。【针对练习】Everyone in this town_ play a part in cleaning it up!【达标练习】 I. 单项选择。( ) 1. My father _ a doctor, but now he is a writer.A. was used to be B. used to be C. is used to be D. was used to being( ) 2. Look! _ people_? A. Does, litter B. Are, littering C. Did, litter D. Were littering( ) 3. Our actions can _ and lead to a better future. A. be made a difference B. make a difference C. be made a different D. make a different( ) 4. So far, the air _ really polluted around here. Im really _worried.A. has become; getting B. have become; getting C. has been becoming; got D. has been becoming; got ( ) 5. We think that everyone _ use public transportation.A. must B. should C. could D. might II. 用所给单词的适当形式填空。1. It used to _ (be) so clean!2. People are _ (litter) in the river.3. Everyone in this town should _ (play) a part in cleaning it up!4. I used to be able to _ (see) stars in the sky.5. I think simple things like _ (bring) a bag to go shopping can help. III. 根据所给汉语完成英语句子。1. 甚至在河的底部也充满了垃圾。Even the bottom of the river _ _ _ rubbish.2. 这个城镇的每个人都应该参与到清扫它当中来Everyone in this town should _ _ _ _ cleaning it up!3.为了减轻污染，我们应该乘坐公交车或者地铁而不是开车。 To _ _ air pollution, we should take the bus or subway instead of driving.4. 我一年前就开始那样做了。I _ _ that a year ago.5. 我们的行动能够产生影响并且能引领未来更好的发展。Our actions can _ _ _ and _ _ a better future!IV. 根据句意及首字母提示填空完成对话。A: Jason and Susan, what are your ideas for (1) s_ these problems?B: Well, to cut down air pollution, we should take the bus or subway instead of driving.C: Yeah, or ride a bike. Other advantages of bike riding are that its good (2) f_ health and it doesnt cost anything!A: Great ideas! What about waste (3) p_?B: Remember to throw (4) r_ in the cans and keep public places clean and beautiful for everyone.A: So together, our actions can make a (5) d_ and lead to a better future!1._ 2._ 3._ 4._ 5._Time, Time again, I ask myself （请写出这节课你的收获，完成下面的反思）【学后反思】_ 九年级英语第13单元学案参考答案及解析第一课时【新知预习】1.bottom 2.littering 3.advantages 4. wooden 5. difference （解析略）【课堂探究】used to, am used to ; should【达标练习】 I.1.B used to意为“过去经常”，其中的to是不定式符号，后接动词原形。2.B Look!提示用现在进行时。3.B 情态动词后边要用动词原形。4.A So far提示用现在完成时。5.B 情态动词的考察。should 应该 must 必须 could 能够 might 可能性较小。II.1. be used to后跟动词原形。 2.littering 对现在进行时的考察。人们正在扔垃圾。 3.play 情态动词后加动词原形。4.see be able to+动词原形。5.bringing 介词like+动名词。II