九年级上册（2024）2a-2d课文课件ppt

这是一份九年级上册（2024）2a-2d课文课件ppt，共24页。PPT课件主要包含了now，Listening，half a day，an hour， minutes，travel far，hospital，shopping，sand，sandstorms等内容，欢迎下载使用。
Learning gals1.通过对话中关于交通、医疗、购物、环境等方面过去与现在的对比。 进一步掌握 used t 结构用法。2.能根据听力内容完成任务，能正确使用 used t 与 nw过去与现在对比。3.能讨论家乡各方面变化产生的原因而且能提出改善环境问题个人想法。
Unit 1 The Changing Wrld
?BIGQuestin
What brings abut changes?
In this unit, yu will1.Talk abut hw things are different frm the hw changes have influenced ur ut hw changes what yu can d fr yur hmetwn.
Lk and share
1.Hw are these tw phts different?2.Hw has this place changed ver time?3.Why d yu think this place has changed s much ?
Sectin A What changes have taken place arund yu?
changes in Li Rui’s hmetwn
in the past
Lk at the picture and predect:1. Why des Gerge call Li Rui?2. What might they talk abut?
Li Rui's hmetwnChina
Gerge and his father visit Li Rui's hmetwn .
supermarket
beautiful trees
Li Rui: What d yu think f yur trip s far?Bb: Amazing! When I first visited here,it tk half a day t reach the twn. Nw, with the new rads, it takes nly an hur.Li Rui: Yes. When I was a child, the bus tk nearly 40 minutes ver rugh rads t get t schl. Nw, it takes nly 15 minutes.Gerge: Life is much easier
First,I think the difficult envirnment is the wrst.Because a bad envirnment can cause many prblems and make peple's lives very hard.
The secnd is sandstrms.Sandstrms are terrible.They can cver the land,hurt peple's health and make it hard t travel utside.
The third is farmland shrtage.Withut enugh farmland,farmers can’t grw enugh fd fr peple.
Finally,lack f technlgy is is a prblem,but we can learn and develp new technlgy t slve the prblems step by step.
There used t be sandstrms all the time... There are fewer sandstrms nw...
The fields were getting smaller and smaller.
At the beginning, we wrked by hand.
Bb: I’m amazed by hw green yur hmetwn has becme!Grandpa: Have yu seen the crn fields utside f the twn yet?Bb: Yeah! They’re huge!Grandpa: There used t be sandstrms all the time, and the fields were getting smaller and smaller.Then, after ne big sandstrm, we decided t d smething.Bb: What did yu d?Grandpa:We fund a small bush. It had lng rts that culd hld the sil tgether. We began planting it in sandy areas. The gvernment prvided supprt t.Bb: Wasn’t it difficult t plant s many bushes?Grandpa: Yes, it was. At the beginning, we wrked by hand. Later, we had machines t help. We have planted many bushes and trees since then. There are fewer sandstrms nw and the envirnment is getting better. It has als imprved ur lives. Everyne has becme richer and happier.
A: The area used t be cvered with sand.B: What did they d t slve this prblem?A: They planted bushes and trees.
The gvernment als gave supprt.
B:Was it easy t plant s many bushes?
A: N,it wasn't. They wrked by hand at first, and later used machines.
B: Hw is the envirnment nw?
A: They have planted lts f bushes and trees. There are fewer sandstrms,and the land has becme much greener and better...
Language pints
1.It tk half a day t reach the twn.（P2-1c） 到达镇上花费半天时间。 It takes (sb.) sme time t d sth. 做某事花费（某人）一段时间 其中it为形式主语，真正的主语是后面的动词不定式（短语）
拓展：人+spend (s)+时间+ding sth 人+spend (s)+时间+n sth
2.The land used t be dry.土地过去常是干燥的。(P2-1a)辨析：used t d sth,be used t d sth与be used t ding sth
1. He （以前）very shy and afraid t speak in public. 2.This big hall （被用来举办）different kinds f schl activities. 3.My uncle （习惯散步）fr an hur after dinner every day.
is used t hld
is used t walking
3.Ging t schl by bus tk nearly 40 minutes ver rugh rads.(P2-1c) 坐公共汽车上学，在崎岖的路上花费将近40分钟。 动名词(短语)作主语ging t schl by bus是动名词短语，在句中作主语。单个动名词(短语)作主语，谓语动词用单数形式。
1、根据汉语意思完成句子。 帮助他人让世界更温暖。 Helping thers makes the wrld warmer.
2、—Using public chpsticks _____ necessary when eating with thers. —That's right. A.is B.are C.was D.were
5.There used t be sandstrms all the time, and the fields were getting smaller and smaller. 过去一直有沙尘暴，而且田她变得越来越小。(P3-2c)
比较级+and+比较级 “越来越…… ” ；通过在单词前加mre构成的比较级，用“mre and mre+形容词/副词原级”表示“越来越……”。
1、根据汉语意思完成句子。（1）如我们保护环境，空气将会变得越来越清新。 If we prtect the envirnment,the air will be fresher and fresher. （2）我们的城市正变得越来越美丽。 Our city is becming mre and mre beautiful.
2、(2025·广东汕头三模)Fast walking is becming____accrding t a recent survey. A.ppular and ppular B.mre ppular and mre ppular C.ppularer and ppularer D.mre and mre ppular