Unit 2 Plant a Plant Lesson 8 Why Are Plants Important? 导学案

Lesson 8: Why Are Plants Important
●课时重点:
1.掌握单词:pleasant, sha ( http: / / www.21cnjy.com )de, basic, soil, channel, gardener。 能正确运用本课的重点短语及句型。
2.了解植物的重要性,爱护植物。
一、填一填
1.It s pleasant to do... 　做……很愉快　　2.take energy from... 　从……中获取能量
3.in a word 　总之;一句话 4.in the shade 　在树荫下
5.由……制成的…… 　be made from 6.在森林里 　in a forest
7.满足某人的基本需要 　fulfill one s basic needs　
8.带走…… 　carry ...away...
二、译一译
1.树和其他植物帮助清洁空气。
Trees and other plants help clean the air.
2.在森林里散步很愉快。
It s pleasant to walk in the forest.
3.它们帮助我们满足我们的基本需要。
They help us fulfill our basic needs.
4.树和植物从阳光里获得能量,把它变成养分。
The trees and plants ( http: / / www.21cnjy.com ) take energy from the sun and turn it into food.
5.总之,没有植物我们不能生存。
In a word, we can t live without plants!
三、想一想
1.文中丹尼、詹妮和布莱恩在干什么
They are walking in a forest.
2.在文中找出植物对我们重要的原因。
Trees and other plan ( http: / / www.21cnjy.com )ts help clean the air. They help us fulfill our basic needs. Plants cover the soil...
3.在句子“Medicin ( http: / / www.21cnjy.com )e and clothing are also made from trees and plants.”中,我们学习到了be made from的用法。举一反三,你能用这个短语造句吗
Paper is made from wood.
活动一
1.阅读课文,完成课文后的第一题,根据文章内容勾出文中提到的条目。
2.再次阅读课文,回答下面的问题。
(1)What help clean the air
Trees and other plants.
(2)What are medicine and clothing made from
Trees and plants.
(3)Can we live without plants
No, we can t.
活动二
1.阅读课文,完成课文后的第二题。用方框中所给单词的适当形式填空。
2.以小组为单位,讨论课文的内容,并以对话的形式表达出来。
完成任务所需的语言结构:
A:Is it pleasant to walk in the forest
B:Yes, it is.
A:Why are plants important to us
B:Because...
活动三
思考一下我们为什么需要植物,小组讨论并 ( http: / / www.21cnjy.com )完成课文后的第三题。最后每个小组以短文的形式写出植物重要的原因,并在各小组之间进行比较,选出最佳小组。
完成任务所需的语言结构:
Plants are import ( http: / / www.21cnjy.com )ant to us. They help make the air clean and fresh. The plants cover the soil and can stop the dust...
知识超市
●Medicine and clothing are also made from trees and plants.
be made from...意为“由……制成的”,原材料往往经过化学变化,从制成品中已看不出原材料。
be made of... 意为“由……制成的”,表示从制成品中可以看出原材料。
be made in...意为“在……被制造”,后面通常接地点名词,表示产品的产地。
be made into...意为“被制成……”,其主语是原料,后面接产品。
做一做:单项选择。
(A)1.—The T-shirt feels soft.
—Yes. It 　　　　silk.
A.is made of　　B.is made in　　C.is made by　　D.is made for
(D)2.—This sweater feels soft. What is it 　　　　of
—Wool, I think.
A.make B.makes C.making D.made
●In a word, we can t live without plants!
without意为“没有;毫无;不”,其反义词是with。 without 后如果接动词,要用动名词形式。
做一做:单项选择。
(D)1.　　　　 the sun ( http: / / www.21cnjy.com ) s heat or light, there would be no life on the earth.
A.Under B.For C.With D.Without
(D)2.He left the room without 　　　　a word.
A.to say B.says C.say D.saying
见《导学测评》P8