UnitTwo Topic one Section A 课件 2023-2024学年仁爱科普版英语九年级上册

Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems. Section A Learning aims Learn some new words and phrases. Get to know: bee, butterfly, pour, villager, destroy, Be able to use: mess, shame, several, waste, cut down Be able to use some useful expressions. What a mess! What a shame! … you can see bees and butterflies dancing. … there are several chemical factories pouring waster water into the stream. Talk about the changes caused by pollution. Make sure that you have mastered the differences between Simple Past and Present Perfect tense. 现在完成时态(二) 1) 表示动作发生于过去并持续到现在. 2)常用的时间状语： for +一段时间 since + 时间点/ 一段时间+ ago/ +一般过去时态的句子 （用how long 提问） 3) 表示持续动作或状态的动作常用延续性动词。 eg. 这本书我买了一年了。 I have had the book for one year. (不能用buy) Revision in class 短暂性动词 come/go/arrive/get/reach ---------------------- leave ---------------------------------------------- open----------------------------------------------- die ------------------------------------------------- buy------------------------------------------------- begin/start ---------------------------------------- borrow--------------------------------------------- marry --------------------------------------------- catch a cold--------------------------------------- close----------------------------------------------- join------ ------------------------------------------ fall ill --------------------------------------------- become-------------------------------------------- wake----------------------------------------------- 延续性动词 be (in/at)--- be away (from) be open be dead have be on keep be married have a cold be closed be a member of / be in +组织 be ill be be awake Revision in class Exercises in class A. They came to our school in 1980. B. They ____ ____ ____ our school since 1980. 2. A. The man died five years ago. B