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Unit 2 Saving the Earth
Topic2 All these problems are very serious.
(
Teacher:
Oct
10
,20
23
)Section A
Learning Aims and Demands:
1.Learn how sandstorms come into being (学习沙尘暴形成的原因）
2. Learn the functions of the trees. (学习树木的作用）
3. Learn the indefinite pronouns and adverbs . (初步学习不定代词和不定副词）
4.Master some important words and phrases. (掌握一些重点单词和短语）
Teaching Plan: Aims(标) Leaching(学) Show (展) Comment(点) Exercise(练)
Learning producer：
Step1. Aims(标)
1.Knowing about the aims.
2.Watch a short movie to lead in.
Step2. Leaching(学)
Talk about how the sandstorm come into being.
Listen to 1a and choose the best answer in 1b.
Question: The boy and girls are talking about _______.
different types of sandstorms
the reasons for sandstorms
sandstorms in different cities
2. Read 1a by groups
①.students -----computer ② computer ----- students
3. Read 1a again with your partner and underline the functions of the trees.
（1）.__________________________________________
（2）.__________________________________________
（3）.__________________________________________
4. Work together(合作学习)-----Read 1a again and find out the key points.
Step3. Show (展)----Read、discuss and learn.(小组合作，综合探究)
1.走在大街上__________
2. 刚才__________
3.砍到 __________
拓展：切碎/切断/切成碎_____/______/_________
4. 结果__________
5.富饶的土地__________
6.变成__________
7.阻止某人做某____/______/__________________
8.吹/冲走______/______________
9.尽管： __________ （不与________连用）
10.绿色长城______________
11.保护环境 ______________
12. While......,I couldn't see anything.
Athough....,we still need to do something to ....
(1)：anything 和something 都是_____________，表示不明确指代某人或某事的代词。不定代词是由some, any, every, no与thing,body,one等构成，如果some, any, no, every和where连用，就构成_____________。
thing body one where
some
any
every
no
I have ____ to tell you.
A. important something B. something important
总结：__________________________________________
Everybody ___ ready for the match.
A. is B. are
总结：__________________________________________
ment(点)
Correct the mistakes.
Sum up the functions of the trees and the indefinite pronouns and adverbs .
Step5. Exercise(练)
一．Complete the sentences with the correct forms of the given phrases in the box.
(
as a result,
change into,
do something,
stop…from,
blow…away
blow…away
)
People have cut down such a large number of trees that the land_________________desert.
There are fewer trees left, so the wind always _______ the earth________.
Air pollution has become a serious problem, so we must
______________ to reduce it.
we should try our best to _________ people ________
cutting down the trees.
In the future, human beings can protect the trees well.
_____________, animals will live a happy life in the forest.
二． Use someone, something, anything, somewhere, anywhere to fill in the blanks.
Lily, would you like ___________ to drink
Cindy is very busy now. She needs _______ to help her.
Is there _________ wrong with your computer
Jim looked for his pencil-box ____________ , but he didn’t find it.
I stayed at home last week. I didn’t go __________.

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