人教版九年级全册 Unit13 We're trying to save the earth! SectionA 3a-3b 教案

Unit 13 We’re trying to save the earth.
Section A 3a-3b ( Period 2)教学设计
Teaching aims:
1. Knowledge objectives：
1) Learn and master new words： sharks, fin, cruel, harmful, chain, ecosystem, industry, law;
2)Learn and master the phrases：hear of, cut off, be harmful to, at the top of, the food chain.
2 .Ability objectives：Be able to get the main idea through reading,
Be able to master some reading skills
Can express opinions about calling up others to protect the animals and the earth.
3. Moral objectives：After learning, students can develop a sense of protecting animals and the environment.
Teaching key points
Master some reading skills
Teaching difficult points
Master some reading skills;
Know how to write a passage about protecting animals.
Teaching procedures:
Step 1. Revision
Sow a picture about the polluted earth and review types of pollution in last period.
(Let more students take part in this class activity)
Step2. Lead-in
T: The environment is becoming worse and worse, meanwhile, there are also animals that are in great danger.
(Let students give some examples of endangered animals.)
T: Other creatures that live in the oceans are also endangered.
设计意图：由环境污染，很自然的过渡到濒危动物，进而再到濒危海洋生物--鲨鱼。层层递进。视频加深了学生对将要学习课文的了解，同时增加学习的兴趣。
Step 3. Presentation (Pre- reading)
1. Play a video about sharks and lead in the new words and phrases.
(Make preparation for reading.)
T: What’ the video about
2. Show pictures about sharks. Guide students to speak out new words and phrases.
设计意图：一方面，直观形象的展示海洋生物的现状，以及鲨鱼在海洋生物链中的重要性；另一方面，反映了人类捕“鲨”的残忍性。同时，处理了本课的新词汇及短语。
Step 4. Reading
Task 1.Fast reading. Let students read the title and the first and the last sentences in each paragraph and match the main ideas.
Talk about shark fin soup. Para.1
Sharks are endangered now. Para.2
Two groups about “ finning ”. Para.3
Task 2. Read the passage quickly and judge the sentences T or F .
①Shark fin（鱼鳍）soup is famous and expensive all around the world.
② Sharks are at the bottom of the food chain in the ocean’s ecosystem.
③ WildAid and the WWF are environmental protection groups in China.
④ Shark fins are good for health.
Task 3. Deal with the tasks paragraph by paragraph.
Read para. 1 and answer the questions:
① Where is Shark fin（鱼鳍）soup popular
② What are you doing, when you enjoy a bowl of Shark fin（鱼鳍）soup
Read para. 2 and answer the questions:
① What do people do, when they catch sharks
② How many sharks are caught and traded every year
Read para. 3 and answer the questions:
① How can the governments do to save sharks
② What are the two environmental groups against “ finning”
设计意图：训练学生，通过阅读寻找细节信息的能力。
阅读方法的积累，重在平时的训练及课后巩固。
Task 4. Do activity in 3a
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Train students’ ability of looking for detailed information from the reading.
Task 5. Do a survey.
①Have you ever heard of shark fin soup
② Have you ever eaten shark fin soup
③ Do you think shark fin soup is good for health
④ Will you eat shark fin soup after this class
设计意图：1.引入连词； 2.渗透情感教育
Task 6. Do the task in 3b.
Step5. Post-reading
1. Retell the passage. Let students try to retell the passage according to the key words.
2. Discussion: If you were sharks or other endangered animals,
what would you want to say to humans Let students discuss in groups of four.
呼吁大家保护动物，然后再叫些小组展示。
板书设计：
Unit 13 We’re trying to save the earth.Section A3a-3c ( Period 2)Words: sharks, fins, cruel, harmful, chain, ecosystem, Phrases: cut off, the food chain , be harmful to ,at the top of