英语-Module-6《Unexplained-Mysteries-of-the-Natural-World》Grammar1外研版必修4课件.ppt

1、欢迎来到英语课堂欢迎来到英语课堂Period 3Module 6 Unexplained Mysteries of the Natural WorldFunctionGrammarFunction-1.Presentation1.Many people think the monster may be related to Nessie.2.They think there might be similar creatures in other lakes.3.Scientists say the lake is unlikely to be able to support such a bi

2、g creature.Which sentences say that something is possible?Which sentences say that something is impossible?Which word is followed by to+verb?1,23unlikelyFunction-2.Summary may 可能会,或许会 1.It may be a new species.2.He may not be there.might 可能,或许(语气较may更不肯定)3.His suggestion might be worth thinking abou

3、t.4.I have got a lot of books that might interest you.unlikely 可能性不大的 (形容词)Snow seems unlikely today.Shes unlikely to arrive before 7 oclock.Its unlikely that he got injured.Function-3.Practice(4m)Do activity 2 on page 54.Keys:1.There might still be dinosaurs somewhere.2.Dont go near the water.It ma

4、y be very deep.3.We are likely to see the monster.4.There may be an underground river from Loch Ness to the sea.5.We must help him-he may not be able to swim.6.There are likely to be lots of strange creatures in that lake.Function-4.Practice(5m)Identify the creatures,using may,might or unlikely.Gram

5、mar-1.Lead-in(3m)Answer the following questions：1.Is Dr Binfield sure what caused the disappearing of dinosaurs on the earth？2.Dr Binfield says,“The dinosaurs may have stopped evolving.”when he says this,is he sure that the dinosaurs stopped evolving?3.When he says“They might have killed each other”

6、.Is he sure about that?What does the sentence mean?Grammar-2.Presentation(3m)Read the sentences and answer the questionsThe dinosaurs may have stopped evolving,and been unable to adapt to changes in the climate.They might have killed each other.We use may have done or might have done to talk about _

7、.1.Something which happened in the past-perhaps.2.Something which is impossible.3.Something which may happen in the future.1Grammar-3.Summary(2m)may+have+done”表示对发生过的事情的推测，意思是“可能已经”或“也许已经”，用于肯定句中。What has happened to George?I dont know.He may have got lost.乔治发生了什么事？我不知道，他可能迷路了。“might+have+done”表示对过去

8、事情的推测，might与may意思相同，但可能性更小。多用于虚拟语气结构中。1.He might have given you more help,even though he was busy.(MET90)他或许会多给你一些帮助，即使他很忙。2.She might have achieved greater progress,if you had given her more chances.如果你多给她点机会，她可能已经取得更大的成绩。Grammar-4.Practice(5m)Do activity 2 and 3 on page 57.Keys:1.might have caused

9、2.may have cut off3.may have survived4.might have been killedThink of more reasons why the dinosaurs might have disappeared.Grammar-4.Practice(5m)Make up some dialogues,using may/might have done.Example:A:Hey,you look worried.What is wrong?B:I cant find my wallet.A:I guess you may have left it in your house.B:I dont think so.A:or you may have put it in your schoolbag.A:Homework Finish the grammar exercise in the Workbook Have a good revision of Todays lesson and make a summary of the use of the grammar learned today.