英语九年级全册Section A第2课时教案设计
展开Unit 13 We’re trying to save the earth（第2课时）
本学期第 课时 本单元第 2 课时 上课日期：_________
一、教学目标：
1. 语言知识目标：
1) 学习掌握下列单词和短语： shark n. 鲨鱼； fin n. 鱼 鳍method n. 方法；
cruel adj. 残酷的；. harmful adj. 有害的；. chain n. 链条； ecosystem n. 生态系统；
the sale of shark fins 鱼鳍买卖take part in 参加can’t afford to do sth 负担不起做某事
. take action 采取行动. turn off 关掉 . pay for付费. add up累加 use public transportation 使用公共交通
2）掌握重点句型：
1. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark fin soup.
3. This method is not only cruel, but also harmful to the environment.这种方法不仅残酷，而且对环境有害。
4. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years. 在最近的20年到30年的时间里，这种鲨鱼已经下降了90%。
2. Sharks may disappear one day if we do not something to stop the sale of shark fins.
5 So far, no scientific studies have shown that shark fins are good for health.
6.It was considered the biggest clean-up project this city had ever had. 这被认为是这个城市曾经开展的一次最大幅度的清理活动。
7.We can’t afford to wait any longer to take action! 我们不能再等待更长的时间来采取行动！
8.Many forget that saving the earth begins with small things. 许多人忘记了拯救地球要从小事做起。
3) 进一步熟练掌握完成时、进行时、被动语态及used to的的用法。
2. 情感态度价值观目标：
通过本单元的学习能够体会保护自然、保护动物、保护地球的重要性，并倡导学生从身边小事做起，保护地球母亲。
二、教学重难点
1. 教学重点：
1)掌握本课时中出现的生词
2) 学会用完成时、进行时、被动语态及used to的的用法
2. 教学难点：
用过去完成时叙述自己曾经有的特别的一天。
三、教学过程Step1. Revision Grammar and finish4a
1. We are trying to save the earth The river used to be so clean.
No scientific studies have shown that sharks fins are good for health.
We should save the sharks.
2. Retell Grammar focus
3.Fill in 4a. Fill in the blanks with the correct forms of the verbs in brackets
Step2. Reading
Work on 3a. Read the passage about sharks and complete the fact sheet below
2. Let Ss complete the work on their own.
Where shark fin soup is popular_______
Number of sharks caught and traded every year______
how much the numbers of some kinds of sharks have fallen in the last 20-30 years_______
Two environmental groups against "finning"_________
Step3. Careful Reading Work on 3b.
Read the passage again and fill in the blanks with the words in the box.
Step4. Language points and important sentences.
harmful 形容词，意为“有害的”。常构成短语be harmful to “对……有害的”。
Staying up often is harmful to your health. 经常熬夜对你的健康有害。
【拓展】harm 名词，意为“害处”。常用构成短语do harm to “对……有害”，相当于be harmful to. Too much smoking does harm to his health. = Too much smoking is harmful to his health. 吸烟过多对他的健康有害
1. But do you realize that you’re killing a whole shark each time you enjoy a bowl of shark fin soup.
3. This method is not only cruel, but also harmful to the environment.这种方法不仅残酷，而且对环境有害。
4. The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years. 在最近的20年到30年的时间里，这种鲨鱼已经下降了90%。
2. Sharks may disappear one day if we do not something to stop the sale of shark fins.
5 So far, no scientific studies have shown that shark fins are good for health.
6.It was considered the biggest clean-up project this city had ever had. 这被认为是这个城市曾经开展的一次最大幅度的清理活动。
7.We can’t afford to wait any longer to take action! 我们不能再等待更长的时间来采取行动！
8.Many forget that saving the earth begins with small things. 许多人忘记了拯救地球要从小事做起。
Step5 Work on 4b Fill in the blanks with the appropriate modal verbs from the box.
Step6. 根据汉语提示完成句子。
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