初中英语仁爱科普版九年级上册Topic 2 All these problems are very serious.试讲课课件ppt

这是一份初中英语仁爱科普版九年级上册Topic 2 All these problems are very serious.试讲课课件ppt，共23页。PPT课件主要包含了cut down，转换成变成，We learn，We can等内容，欢迎下载使用。

Learn sme new wrds and phrases. Wrds: althugh, sandstrm, desert, reduce, cmpletely Phrases: change int, human beingBe able t use sme useful expressins. As a result, a lt f rich land changed int desert. Trees can stp the wind frm blwing the earth away.Use the indefinite prnun and adverb.
It’s a kind f strm caused by sand.
What kind f weather is it?
1a Listen, lk and say.
M: windK: sandstrms; anything M: bad J: cut dwn; as a result; change int; blw… awayK: can be saved J: wash … away M: affectK: is harmful t; althugh
Act ut the dialg in pairs
The by and girls are talking abut ___________.different types f sandstrms the reasns fr sandstrms sandstrms in different cities
1b Listen t 1a and chse the best answer.
Fcus n the main idea f the cnversatin when yu listen fr the first time.
Listen again and answer the questins
1.What’s the weather like tday ? It’s bad. The wind is s strng . And the sand really hurts causes these sandstrms ? Peple have cut dwn t many trees. As a result, a lt f rich land has changed int desert.
smebdy, smene, smething, smewhere anybdy, anyne, anything, anywhere nne, nbdy, nthing, nwhere everybdy, everyne, everything, everywhere
一般情况下用于否定句和疑问句
the indefinite prnun and adverb
1.I have ____ t tell yu.A. imprtant smethingB. smething imprtant
形容词修饰不定代词和不定副词时，要放在不定代词/不定副词之后
2.Everybdy ___ ready fr the match.A. is B. are
不定代词作主语时，谓语动词要用单数。
1. As a result, a lt f rich land changed int desert. 结果，大量肥沃的土地变成了荒漠。change…int译为________, 同义短语：_________. 加热使水变成蒸汽。 Heat ______water _______ steam. = Heat ______water _______ steam. 我们必须等到交通灯变绿。 We have t wait fr the traffic lights t______ ______ green
changes int
turns int
turn int
2. Trees can stp the wind frm blwing the earth away. 树可以防风固土。
stp/keep/prevent frm ding sth. 阻止某人做某事
keep sb. ding sth 让某人一直做某事
1c Read 1a and cmplete trees’ functins.
Trees can stp the wind frm blwing the earth away. A lt f water can be saved by frests. They can als stp the water frm washing the earth away.
森林可以储存大量的水分。
2 Cmplete the sentences with the crrect frms f the given phrases in the bx.
as a result, change int, d smething, stp…frm, blw…away
1.Peple have cut dwn such a large number f trees that the land _____________________desert. 2.There are fewer trees left, s the wind always _______ the earth ________. 3.Air pllutin has becme a serius prblem, s we must ______________ t reduce it. 4.we shuld try ur best t _________ peple ________ cutting dwn the trees. 5.In the future, human beings can prtect the trees well. _____________, animals will live a happy life in the frest.
has changed int
As a result
3 D yu knw hw sandstrms cme int being? Number the pictures and talk abut the sandstrm in grups.
wash the earth away
many trees
change int desert
sandstrms cme int being
cut dwn trees
many trees
Lng ag, there were lts f trees and frests. But peple needed sme wd t build huses and d ther things, s they cut dwn the trees day by day.
wash the earth away
Frests have gne.
change int desert
e.g. A lt f rich land has changed int desert because peple have cut dwn t many trees.
sandstrms
cme int being
4 A. Listen t the passage and circle the phrases yu hear.
becme weakerdestry the envirnmentdisappear rapidlyn the earthenugh bamb t eat
1. Nw sme kinds f animals are becming ______ ______ _______.2. Sme animals are_____ ______ ____dying ut cmpletely.3. In the past, pandas lived a quiet life and had ________ ______fd.4. Humans have _____ _____ __________ the imprtance f prtecting animals.5. We shuld ______ ______ ____t prtect them.
d ur best
in danger f
plenty f
cme t understand
fewer and fewer
4 B. Listen again and fill in the blanks.
1.Sme wrds: sand, althugh 2.Sme phrases: change int, human being 3.Sme sentences: (1)As a result, a lt f rich land changed int desert. (2)Trees can stp the wind frm blwing the earth away. 1. Use the indefinite prnun and adverb. 2.Talk abut the sandstrm and its harm.
Lily, wuld yu like ___________ t drink? Cindy is very busy nw. She needs __________ t help her. Is there _________ wrng with yur cmputer?Jim lked fr his pencil-bx ____________ , but he didn’t find it. I stayed at hme last week. I didn’t g __________.
Use smene, smething, anything, smewhere, anywhere t fill in the blanks.