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Planting trees

[10-15 05:24:51]   来源：http://www.77xue.com  九年级英语教案   阅读：8570次
概要：教师还可以让学生填写下表：THE GREAT GREEN WALLSpecial featuresacross the northern part of China，7，0OO kilometres long，between400 and l700 kilometres wide FunctionsIt stops the wind from blowing the earth away; and stops the sand from moving toward the rich farmland in the south. It has saved a lot of land.Wang Feng and other workersThey work at Yulin in Shaanxi. They have planted ten thousand tree this year. It’s difficult to work on the Great Green Wall. The
Planting trees,标签：初三英语教案,新目标九年级英语教案,http://www.77xue.com
教师还可以让学生填写下表：

THE GREAT GREEN WALL

Special features

across the northern part of China，7，0OO kilometres long，between

400 and l700 kilometres wide

Functions

It stops the wind from blowing the earth away; and stops the sand from moving toward the rich farmland in the south. It has saved a lot of land.

Wang Feng and other workers

They work at Yulin in Shaanxi. They have planted ten thousand tree this year. It’s difficult to work on the Great Green Wall. They have to grow their own food.

　　提取主题词（key words）也有助于帮助学生复述课文大意。

Forests

keep from, water, soil, floods

China

copy, across, is…long and between…and …wide, stop…from, save, needed, all over the world

Wang Feng

　　work on…, visit, among, ask, plant, over there, on the hill, five years ago, in a few years’ time, be covered, point to, difficult, grow food, thanks to

　　在进行写作训练时，可以要求学生仿照课文，写一篇以How to plant flowers in the garden 为题目作文。

关于带情态动词的被动语态的教学建议

　　本单元在前两个单元学习一般现在时和一般过去时的被动语态的基础上，继续学习带情态动词的被动语态。 

　　在第41课，以显著的位置展示题为“HOW TO PLANT A TREE”的操作规程（instructions），教师如果仅仅是按部就班地讲解，就会使学生感到枯燥乏味。要充分利用课文中所提供的情景，在有意义的情景中教学语法知识。例如，教师可利用简笔画来引出新的语法知识。学生基本掌握instructions大意后，教师应引导他们理解情态动词的用法。到了第43课可采用对比的方法。教师列出两个框框，要求学生分别填上课文中已出现的带情态动词的句子，和可以由主动语态变为情态动词的被动语态的句子，把变化后的句子填入框内。如下表： 

1. The ground must be just right.

2. But the hole should not be too deep.

1. The earth should be neither too wet nor too dry.

2. A hole must be dug large enough for the tree. The size of the hole must be just right.

3. A long, strong stick should be knocked into the earth next to the hole. It must be firmly planted.

4. The tree must be put in the hole so that it is straight. The tree must stand straight in the hole.

5. The earth must be put back in the hole again.

6. The earth should be pushed down hard with ....

7. The tree must be tied to the top of the stick ....

8. It should be watered well, ....

　　学生在做这个练习时，对本课句型与词汇有了进一步认识，同时也锻炼了写的能力。

　　在有条件的学校可放教学录相以加深印象。在全班读熟课文后，展示几幅植树的图片，让学生独自准备几分钟，进行连锁练习，按次序复述instructions。也可两组之间进行比赛，由A组说出第一条注意事项，再由B组说出下一条。最初可完全复述课文原句。熟练后，可全部用主动语态或全部用被动语态，或一句主动语态一句被动语态交替出现，或句子中带有情态动词等方式进行操练。

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