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仁爱科普版Topic 2 All these problems are very serious.多媒体教学课件ppt
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这是一份仁爱科普版Topic 2 All these problems are very serious.多媒体教学课件ppt，共27页。PPT课件主要包含了Sandstorm，rainstorm，snowstorm，sandstorm，Assignment，Thank you等内容，欢迎下载使用。
Watch a shrt mvie and guess.
What kind f weather is it?
a kind f strm caused by sand
Describe the sandstrms
3 D yu knw hw sandstrms cme int being? Number the pictures and talk abut the sandstrm in grups.
wash the earth away
change int desert
sandstrms cme int being
cut dwn trees
many trees
cme int being
Cmpare the tw pictures.
The rich land has changed int desert.
change int, change …int
Retell Cmpetitin
List the trees’ functins
let ut xygen, lungs f the earth, cntrl the climate ,prvide hmes fr animals,give us fruit, medicine, wd, rubber etc.
One Jungle, Many Wrlds.
Skim 1a and find mre abut 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.
Listen t 1a, and answer the questins.
The Green Great Wall.
1. What are the by and girls talking abut?
2. What have we dne t prtect the envirnment?
The reasns fr sandstrms.
Read alud and pick up the useful expressins.
Useful Expressins
change intstp … frmblw… awaywash … awayhuman beingas a result
7. blw strngly8. What bad weather!9. affect the weather10. The Green Great Wall
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。
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
K: wind; sand; anything M: sandstrms J: cut dwn; as a result; change int M: affect J: stp…frm…; blw… away K: can be saved J: wash … away K: is harmful t; althugh; d smething
Act ut the dialg in pairs
沙尘暴是怎么形成的？Hw d sandstrms ___________________?2. 他忘了浇花，结果花都死了。He __________ water the flwers. __________, they all died.3.虽然沙滩上的太阳很大，但孩子们仍开心地在玩着沙子。___________ the sun is shining strngly n the beach, the children are still playing with the ________ happily.
1.change int desert 2. human being 3.as a result 4. cme int being 5.stp … frm 6.blw… away 7.wash … away 8.destry the envirnment(1)Trees can stp the wind frm blwing the earth away. (2)They can stp the water frm washing the earth away. (3)As a result, a lt f rich land has changed int desert.(4)While I was walking dwn the street just nw, I culdn’t see anything.(5)Althugh we have built “The Green Great Wall”, we still need t d smething t prtect the envirnment.
Read 1a.Memrize the useful expressins and key sentences which we learn tday.Finish Sectin A in yur wrkbk.Preview Sectin B.
Trees are very useful t us. They can help us p_____ the wind frm blwing the earth away and stp the s_______ frm mving twards the rich land. Trees als s________ water frm running away. They can keep a great d______ f water. S we must stp peple frm c______ dwn tmany trees. Otherwise a lt f rich land willchange int d_______, l_______ nly sand. We must get rid f (摆脱) this kind f bad b______.
根据句意及首字母提示完成句子。
4 A. Listen t the passage and circle the phrases yu hear.
becme weakerdestry the envirnmentdisappear rapidlyn the earthenugh bamb t eat
Watch a shrt mvie and guess.
What kind f weather is it?
a kind f strm caused by sand
Describe the sandstrms
3 D yu knw hw sandstrms cme int being? Number the pictures and talk abut the sandstrm in grups.
wash the earth away
change int desert
sandstrms cme int being
cut dwn trees
many trees
cme int being
Cmpare the tw pictures.
The rich land has changed int desert.
change int, change …int
Retell Cmpetitin
List the trees’ functins
let ut xygen, lungs f the earth, cntrl the climate ,prvide hmes fr animals,give us fruit, medicine, wd, rubber etc.
One Jungle, Many Wrlds.
Skim 1a and find mre abut 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.
Listen t 1a, and answer the questins.
The Green Great Wall.
1. What are the by and girls talking abut?
2. What have we dne t prtect the envirnment?
The reasns fr sandstrms.
Read alud and pick up the useful expressins.
Useful Expressins
change intstp … frmblw… awaywash … awayhuman beingas a result
7. blw strngly8. What bad weather!9. affect the weather10. The Green Great Wall
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。
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
K: wind; sand; anything M: sandstrms J: cut dwn; as a result; change int M: affect J: stp…frm…; blw… away K: can be saved J: wash … away K: is harmful t; althugh; d smething
Act ut the dialg in pairs
沙尘暴是怎么形成的？Hw d sandstrms ___________________?2. 他忘了浇花，结果花都死了。He __________ water the flwers. __________, they all died.3.虽然沙滩上的太阳很大，但孩子们仍开心地在玩着沙子。___________ the sun is shining strngly n the beach, the children are still playing with the ________ happily.
1.change int desert 2. human being 3.as a result 4. cme int being 5.stp … frm 6.blw… away 7.wash … away 8.destry the envirnment(1)Trees can stp the wind frm blwing the earth away. (2)They can stp the water frm washing the earth away. (3)As a result, a lt f rich land has changed int desert.(4)While I was walking dwn the street just nw, I culdn’t see anything.(5)Althugh we have built “The Green Great Wall”, we still need t d smething t prtect the envirnment.
Read 1a.Memrize the useful expressins and key sentences which we learn tday.Finish Sectin A in yur wrkbk.Preview Sectin B.
Trees are very useful t us. They can help us p_____ the wind frm blwing the earth away and stp the s_______ frm mving twards the rich land. Trees als s________ water frm running away. They can keep a great d______ f water. S we must stp peple frm c______ dwn tmany trees. Otherwise a lt f rich land willchange int d_______, l_______ nly sand. We must get rid f (摆脱) this kind f bad b______.
根据句意及首字母提示完成句子。
4 A. Listen t the passage and circle the phrases yu hear.
becme weakerdestry the envirnmentdisappear rapidlyn the earthenugh bamb t eat
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