Unit 2 Topic 1 Section A

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There are many kinds of pollution around us, air pollutionnoise pollutionwater pollutionJinhe Middle School Quan HailiUnit 2 Saving the Earth

Topic 1 Pollution has caused too many problems.

Section ATeaching aims:1.Learn some important words and phrases: mess, shame, several, pour, waste, cut down, pollute.

2.Grammar: Learn the differences between Simple Past and Present Perfect by learning something about the West Hill in the past and now.Q1:What’s the weather like in the picture?Q2:What would you like to do in such weather?Leading-in：Q3:Where have you been?Have you ever had a picnic?Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.

They will go to the West Hill.What can you see there?We can see bees and butterflies dancing.beebutterfly Is the West Hill beautiful? a place withbeautiful flowersBrainstormmany hillsgreen treesThe flowers and grass have gone! Oh, my goodness. What a mess!Look! There are several chemical factories pouring waste water into the stream.= have disappeared.Is it beautiful now?

What has happened there?P27 1a mp31.Review some important words and phrases: bee, butterfly, mess, shame, several, waste, cut down, pollute.

2.Listen to 1a and do 1b together.幻灯片 10

3.Read 1a and finish 1c.展示评价:

4.Find out the useful expressions in 1a.展示评价:

5.Retell 1a based on 1c.展示评价:

6.Grammar: the difference between Simple Past and Perfect present.幻灯片 13Leaching Outline：1b Listen to 1a and mark the words with P (Past) or N (Now).

____ beautiful ____ butterflies ____ dirty

____ grass ____ terrible ____ factory

____ bees ____ fresh ____ clean

____waste waterPPNPNNPPPN展示评价:G3 G6G1 (口头) G4G2 G51c Read 1a and complete the sentences in the table. Then retell 1a to your partner.beautiful placelots of flowers and grassfresh and the water was cleanbees and butterflies dancingThe flowers and grassso dirtyterriblechemical factorieswaste waterEverythingGrammar：一般过去时与现在完成时1.I ___ (come) here just now.

2.I’ve just ___ (come) back from my hometown.

3.In the past, it __(be) a beautiful place.

4.In the past 5 years, he ___(write) more than 10 novels.区别：just / just now ;

in the past / in the past 5 yearsGrammar：一般过去时与现在完成时现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果，强调现在的情况，不能直接和过去某一时间状语连用。

一般过去时只表示过去的动作或状态，和现在不发生联系，强调的是过去的情况，可以和过去某一时间状语连用。eg：She _________(live) here since 2000.

She ______(live) here in 2000. has lived 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 was…Now, …have/has gone.

What has happened?Everything has changed. Pollution has caused too many problems. As a student, I think…Homework

1. Read 1a.

2. Write a passage according to Part 4.

3. Finish Section A in your workbook.

4. Preview Section B.

The end.

Thanks!

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