初中英语仁爱科普版九年级上册Topic 1 Pollution has causes too many problems.课堂教学ppt课件
展开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
e.g. A lt f rich land has changed int desert because peple have cut dwn t many trees.
sandstrms
cme int being
1a Listen, lk and say.
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.
Tree’s functins
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 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. 3.D we still need t d smething t prtect the envirnment ? Yes, we d. Althugh we have built “The Green Great Wall”, we still need t d smething t prtect the envirnment .
cnj. 虽然,尽管,即使
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。
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
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
4 A. Listen t the passage and circle the phrases yu hear.
becme weakerdestry the envirnmentdisappear rapidlyn the earthenugh bamb t eat
4 B. Listen again and fill in the blanks.
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
cme t understand
fewer and fewer
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.
We learn: 1.Sme wrds: sand, althugh 2.Sme phrases: change int, human being 3.Sme sentences: (1)As a result, a lt f rich land has changed int desert. (2)Trees can stp the wind frm blwing the earth away. We can: 1. Use the indefinite prnun and adverb. 2.Talk abut the sandstrm and its harm.
Read 1a.Memrize the useful expressins and key sentences which we learn tday.Finish Sectin A in yur wrkbk.Preview Sectin B.
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