79（九年级）Unit 13 Section B (3a-Self Check)（教案1）

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Unit 13 We’re trying to save the earth!
Section B（3a-Selfcheck）

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 Check Exercise 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 the environment. Present perfect People should take public transportation more. Modal verbs The river is polluted by factories. Passive voice The air pollution is getting worse and worse. Present progressive 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 3Homework
Homework Preview Unit 14 Section A (1a-1c). Do the exercises in students’ book.
Teaching Reflection	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 environment. And they will do a lot of work to practice words and expressions. They review the word formation and learn these words. When finishing a unit, we usually get the students to review the whole unit.