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Unit 13 We’re trying to save the earth!
Section B（3a-Selfcheck）
1. 语言能力：掌握本课时重要词汇和短语：throw away, put sth. to good use, pull…
down, upside等。
2. 文化意识：了解环境保护的方法，激发学生强烈的社会责任感和对 未来发展
Teaching
的思考。
Aims
3.思维品质：能借助文章标题和插图对阅读篇章内容进行合理的预测。
4.学习能力：能读懂有关环保的文章，并从文中获取详细信息，完成阅读任务。能在阅
读中借助上下文语境和构词特征猜测部分词汇的含义。
重点：
1. 能够完成有关环保主题的书面表达。
Teaching 2. 能够掌握派生词的用法和构词规律。
Difficulties 3. 能够识别句子结构，熟练掌握现在进行时，现在完成时，被动语态，情态动词和
used to的用法。
难点：学生能结合本单元的环境问题和环保措施，完成写作任务。
Teaching CAI, multimedia courseware or other realia that the T needs for teaching
Aids
Teaching Procedures Tips
Step 1 Warm up
3a
Ask Ss to complete the chart in 3a. After Ss have
completed their individual charts, T may want to ask to show
the notes they have made to a partner to get some feedback and
revise their notes if they find it necessary.
Answers will vary.
Step 2 Writing&Presentation
3b
Ask Ss to write a letter to the city mayor about the
environmental problems in their city. T may want to suggest to
Ss that it might be better to focus on one problem and write
about it in detail instead of writing about many problems and
not providing enough details.
T can show Ss some writing tips, good sentences and sample writing
before Ss start to write by themselves.
Self CheckExercise 1
Let Ss look at the diagram in exercise 1 and write
different forms of words. At the end of exercise 1, T may want
to review prefixed by asking Ss to make a list of words with the
two prefixes they encountered in Section B, activity 2d.
Answers:
v. - n.
pollute - pollution act - action protect - protection
inspire - inspiration build - building create - creativity
Others: meet -meeting educate - education paint - painting
n. - adj.
fame - famous wood - wooden science - scientific health - healthy
south - southern care - careful
Others: wool - woolen hair - hairy north - northern
adj. - n.
different - difference important - importance
Others: significant - significance relevant - relevance
brilliant - brilliance
adj. -adv.
slow - slowly wide - widely sudden -suddenly real - really
Others: sure - surely actual - actually quick -quickly
Exercise 2
Let Ss match each statement with the grammar structure.
Answers:
Statement Grammar
The river used to be clean. used to
We have seen many changes in Present perfect
the environment.
People should take public Modal verbs
transportation more.
The river is polluted by Passive voice
factories.
The air pollution is getting Present progressive
worse and worse.
Exercise 3
Ask Ss to write down the ways to cut down the kinds of
pollution which are mentioned in the box.
Answers will vary.
Step 3 Homework
Homework
Preview Unit 14 Section A (1a-1c).
Do the exercises in students’ book.This is the last period of the unit. Students will use what they have learned in
the unit. They will use them to write a letter about how to protect the
Teaching
environment. And they will do a lot of work to practice words and
Reflection
expressions. They review the word formation and learn these words. When
finishing a unit, we usually get the students to review the whole unit.
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