仁爱科普版九上英语Unit 2 Topic 3What can we do at home to protect the environment？ Section C 教案

仁爱版九年级（上）Unit 2 Topic3 Section C
一、Teaching aims and demands
Knowledge objects:Go on learning the usage of compound sentences with conjunctions. Know about the modern technologies on environmental protection.
Ability objects: Learn some reading skills
Moral objects: Ask students to love the earth, not pollute the earth, and do what they can to protect the environment from now on.
二、Teaching keys and difficult points
Key points: New words, to develop students’ reading abilities.
Difficult points: New words, the usage of compound sentences with conjunctions.
三、Teaching methods
1. Communicative teaching method; 2. Audio-visual teaching method;
3. Task-based teaching method; 4. Game teaching method.
四、The teaching aids
PPT, words write on the cards, video, blackboard.
五、Teaching procedure
Step1. Learn the new words
1. Learn the new words of this section.
A、识记词汇: (Remember the meaning , the spelling and the usages )
1、renewable /r 'nju: bl/ adj. 可更新的;可再生的re – 重，再 redo , retell, rewrite 2、disadvantage /d s d'v nt d / n. 不利因素，障碍，不便之处dis – 否定意思 dislike , disable
3、per p (r) prep. 每，每一 = _________ 4、German /'d :m n/ n. 德国人 ，德语写出German ________ 和 human ________ 的复数___________ adj. 德国人的，德国的
5、best-known 最知名的 6、efficient / 'f nt/ adj. 效率高的，有能力的
7、wave /we v/ n. 挥手；招手；海浪 8、deep /di:p/ adj. 深的；厚的adv. 深深地；在深处
9、run out 用完，耗尽 10、sunlight /'s nla t/ n. 阳光，日光
B、识别词汇：（Knowing the meaning of the words is OK. ）
1、acid /' s d / rain 酸雨 2、nuclear /nju:kli (r)/ adj. 原子核的，原子能的
3、biogas / ba g s/ n. 生物气（尤指沼气） 4、technology / tek'n l d /n.技术
5、straw /str :/ n. 稻草;麦秆 6、electric / lektr k/ adj. 电的，带电的;发电的
7、process / pr 'ses/ n. 过程;工序; v. 加工;处理 8、require /r 'kwa (r) / v. 要求;需要;
9、maglev /'m glev/ train 磁力悬浮火车 10、wheel /wi:l/ n. 轮子;旋转
11、guide /ɡa d/ n. 指导者;向导;导游 12、path / p θ/ n. 小路，路;路线，路程
13、steel /sti:l/ n. 钢，钢铁 14、worldwide / w :ldwa d/ adv. 遍及全球地
15、source /s :s/ n. 根源;本源;源头 16、steam /sti:m/ n. 蒸汽，雾
2. Play a game.
Step2. Listening practice
Look at the passage on the PPT, listen to 1a then fill in the blanks.
(1) In many countries, people produce power from coal, but it is very dirty and causes acid rain. Some countries use nuclear energy to produce power. __________ , nuclear power can be very dangerous. To solve the energy problem, people all over the world are looking for new ways to produce power.
(2)China is one of the first countries in the world to use biogas technology. Farmers recycle straw, grass and animal waste to make biogas. This renewable energy is used in people’s every lives. Its key disadvantage is that the process requires a long time (up to 30days) and the cost is _______.
(3)Electric vehicles were developed in the 1990s. , 2010, a new kind of electric vehicle named “ Yezi” was shown in the 2010 Shanghai World Expo. It produces electricity from the sun, the wind and CO2. It can not only protect the environment but also save energy. It’s too small to hold many people, but larger models will be developed in the near future.
(4)In China, the best-known maglev train is the German-built one in Shanghai. It people just 7 minutes to go to the airport 30km away. The train can reach a top speed of 431 km per hour. It is quiet and quick. There is no wheel noise, because there are no wheels. Maglev trains are very energy-efficient and do not pollute the air. However, maglev guide paths are much more expensive than traditional steel railways.
Step3. Reading practice
1. Scanning and skimming
Try to find out the main idea of each paragraph. Ask students to pay attention to the first or the last sentences of each paragraph.
2. Careful reading
a. Look at the passage of 1a on PPT, pay attention to the underline parts. Students discuss with their partners and try to understand them.
(1) In many countries, people produce power from coal, but it is very dirty and causes acid rain. Some countries use nuclear energy to produce power. However, nuclear power can be very dangerous. To solve the energy problem, people all over the world are looking for new ways to produce power.
(2)China is one of the first countries in the world to use biogas technology. Farmers recycle 世界上最早的国家之一
straw, grass and animal waste to make biogas. This renewable energy is used in people’s every lives. Its key disadvantage is that the process requires a long time (up to 30days) and the cost is high.
(3)Electric vehicles were developed in the 1990s.On Apil 11, 2010, a new kind of electric vehicle 在20世纪90年代被发明
named “ Yezi” was shown in the 2010 Shanghai World Expo. It produces
被命名 被展出
electricity from the sun, the wind and CO2. It can not only protect the environment but also save energy. It’s too small to hold many people, but larger models will be developed in the near future. 被研制
(4)In China, the best-known maglev train is the German-built one in Shanghai. It takes people just 7 minutes to go to the airport 30km away. The train can reach a top speed of 431 km per hour. It is quiet and quick. There is no wheel noise, because there are no wheels. Maglev trains are very energy-efficient and do not pollute the air. However, maglev guide paths are much more expensive than traditional steel railways.
b.Finish the table
Find out the phrases of the blank in each paragraph. Write down the items, then mark A for advantage and D for disadvantage.
写出Item ( 项目) Mark A for advantages mark D for disadvantages.
high cost高费用 ( ) renewable 可再生能源( ) long process 过程长 ( )
no pollution 无污染( ) too small to hold many people 太小不能承载太多人( ) save energy节约能源 ( )
much more expensive than traditional steel railways( ) 费用远远高于传统铁轨的费用quiet安静的 ( ) quick快速的 ( ) energy-efficient 有效利用能源 ( ) no pollution无污染 ( )
Step4. Key points
Explain the underline key points of the passage. And finish the exercises that followed.
1、one of the first countries …… 世界上最早的国家之一
one of + 可数名词的复数，意为“…之一”，该短语做主语时，谓语动词用单数。
One of my friends is over there.
填空： 我的一个同学来自加拿大。
One of my _____________ (同学) ___________ (来自)from Canada.
She is one of the most beautiful _______ (girl) in my class.
2、连词
1）not only … but also(不但…而且 )
主要用于连接两个对等的成分；若连接两个成分作主语，其后谓语动词与靠近的主语保持一致。
如：She likes not only music but also sport. 她不但喜欢音乐而且喜欢运动。
Not only the students but also their teacher is enjoying the film.
不仅学生们在欣赏这部影片，他们的老师也在欣赏这部影片。
Not only their teacher but also the students are enjoying the film.
2）because 因为（后接句子，不能与so 同时使用）
I am late because the car is broken.
3）but （但，表转折）
It was a sunny but not very warm day. 那一天天气晴朗，却不太暖和。
He drives not carefully but slowly. 他开车不是很小心，而是开得很慢。
4）however
（然而，however不能直接连接两个分句，必须另起新句，并用逗号隔开。）
It was raining hard. However, we went out to look for the boy.
雨下得很大，不过我们还是出去寻找那个孩子。
用not only… but also, because, but, however 填空：
1) Jane is ______ ______ a singer ______ ______ a dancer.
2) Not only my sister but also my parents ___________ (like)watching the basketball.
3) It’s hard work, _________ I enjoy it.
4) They went to the zoo yesterday, _________ , they didn't see any animals.
5) He didn’t go to school _________ he was ill .
Blackboard designing：
Unit 2 Topic 3 Section CReading skills: First or last sentence of each paragraph.G1G2G3G4Key points: one of… not only…but also… because, but, however.