九年级英语全册 Unit 13 We're trying to save the earth(第4课时)Section B(1a-1e)课件

Unit 13 We’re trying to save the earth!要点详解1. We’re trying to save the earth!我们正尽力拯救地球！(1) 本句时态为现在进行时，表示现阶段正在做的事情。

现在进行时所表示的动作并不一定在说话人的说话时刻进行，而是在包括说话时刻在内的一段时间当中进行。

例如：George is translating a book now. 乔治现在在翻译一本书。

（说这句话时，乔治不一定正在翻译；但在包括“说话时刻”在内的一段时间当中，乔治是在从事翻译工作。

）(2) try to do 表示“设法或尽力去做某事”，实际上做与不做，视情况而定，而try doing表示“试着做”，即动作真的进行了或正在进行，成败则视结果而定。

例如：He tried to read, but he was too tired to read much.他想设法看书，但太疲倦了，没看多少。

He tried reading, but that could not make him forget his trouble.他试着看书，但这并没使他忘记烦恼。

2. I am like this animal because I am strong and intelligent.我像这种动物，因为我强壮而聪明。

(1) like在本句中做介词，意为“像”，例如：He looks like winning the race.他看来要在比赛中获胜。

She is like her mother.她像她的妈妈。

(2) like做介词时可用very，very much，rather，quite等副词修饰。

例如：You look very much like your father.你与你父亲很相像。

3. Some of the swamps have become polluted。

一些沼泽已被污染了。

Unit 13 We’re trying to save the earth教材分析本单元带领学生了解了一些有关地球污染，动物濒危等问题。

并且教给大家如何保护濒危动物，如何通过回收利用等方式来保护地球。

本单元主要复习语法内容为情态动词和动词形式变化。

本课主要带领大家进行语法复习，巩固语法知识。

一、三维目标(一) 知识与技能1. To learn different forms of verb.2. To understand the use of Modal Verbs.(二) 过程和方法3. To know how to use different forms of verb in different situations.4. To know how to use Modal Verbs in different situations.(三) 情感态度和价值观5. After learning this part, every student will be able to describe theirawareness of the serious situation of pullution and solutions to environmental problems using what we have learned in this lesson.教学重点1. To change forms of verb according to specific situation.2. To use Modal Verbs properly.教学难点1. To change forms of verb according to specific situation.2. To use Modal Verbs properly.二、教学策略根据本课教学目标和重点内容，教师可采用读，小组讨论，口头及书面练习等活动来引导学生进行学习。

This is not only cru,eblut also harmful to the environment.
残忍的
While -reading Read Para. 2 and find the results of killing sharks.
For a shark
Without a fin, a shark can ____n_o__lo_n_g_e_r__sw__im___a_n_d_s_l_o_w_l_y_d_i_e_s.
WildAid WWF
government
I hope we can live in peace.
Homework
You can choose either one of the two tasks : 1. Can you polish （润色） the poster of " Protecting Sharks "? 2. Can you make a poster to protect other endange animals?
ቤተ መጻሕፍቲ ባይዱ
It’s _i_m_p__ro_t_a_n_t_ to save sharks.
While -reading Read Para.3 and find out the names of the groups
Groups against “finning”
They are teaching the public about " finning ." They have asked governments to develop laws .
Post -reading Retell the story

Unit 13 We’re trying to save the earth!知识导航语言目标谈论污染和环境保护。

Section A 重点单词1. litter v.乱扔n.垃圾2. bottom n.底部3. coal n.煤4.ugly adj.丑陋的 5. cost v.花费n.花费 6. wooden adj.木制的 (wood n.木材) 7. plastic adj.塑料的n.塑料 8. method n.方法 9. cruel adj.残酷的 10. harmful adj.有害的 (harm n.害处) 11. industry n.工业 12. law n.法律 13. afford v.承担得起重点短语1.make a difference 起作用；有影响2. take part in 参加3. turnoff 关掉4. pay for 付费；付出代价5. cut down 减少6. lead to 导致7.hear of 听说 8. cut off 切除重点句型1.We’re trying to save the earth. 我们在努力拯救地球。

2. The rive used to be so clean. 这河流过去是如此的清澈。

3. The air is badly polluted. 空气被严重污染。

4. The method is not only cruel, but also harmful to theenvironment. 这种方法不仅残酷，而且对环境也有害。

Section B +Self Check 重点单词1. recycle v.回收利用2. gate n.大门3. bottle n.瓶子4.president n. 负责人 5. work n.作品 6. metal n.金属重点短语1. throw away 扔掉2. put sth. to good use 好好利用3. put …down 拆下 4. upside down 上下颠倒 5. bring back 恢复重点句型1. And the gate in front of her house is made of rocks and oldglass bottles. 她房子的前门是由岩石和旧玻璃瓶子制成的。