初中英语仁爱科普版九年级上册Topic 2 All these problems are very serious.备课ppt课件
展开Learning bjectives
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. 4. Use the indefinite prnun and adverb.
Watch a vedi
What’s it abut?
Lk and answer
< 01>What kind f weather is it?
sandstrm [ˈsændˌstɔːm] n.沙暴
sand [sænd] n.沙,沙子sandstrm[ˈsændˌstɔːm]n.沙暴change…int… 转换成desert ['dezət] n.沙漠v.舍弃
althugh[ɔːl'ðəʊ]cnj.虽然reduce[rɪˈdjuːs]v.减少cmpletely[kəmˈpliːtli]adv.彻底地
Plant trees
Lk and talk abut hw sandstrms cme int being.
cme int being
cut dwn trees
What is this passage mainly talking abut?
Listen and check
Listen and answer
Listen t la and answer the questins.
1. What are the by and girls talking abut?A. different types f sandstrms B.the reasns fr sandstrmsC. sandstrms in different cities2. What have human beings dne t prtect the envirnment?
They have built the Green Great Wall.
Listen again and cmplete the mind-map.
The wind utside is blwing .
Kangkang culdn't see
Peple have t many trees.
Rich land has changed int
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
Read 1a and circle the language pints.
(Kangkang. Maria andJane are talking in a rm. The wind uside is blwing strngly)Kangkang: What bad weather! The wind is s strng! And the sand really hurt my face. While I was walking dwn the street just nw, I culdn't see anything.Maria:I'm srry t hear that. What causes these sandstrms?
Language pints
感叹句 what +adj.+不可数名词
Jane:Peple have cut dwn t many trees. As a result, a lt f rich land has changed int desert.Maria:That's bad. Hw can that affect the weather?Jane:Trees can stp the wind frm blwing the earth away.
stp sb./sth. frm ding sth.阻止某人某物做某事
Kangkang: And a lt f water can be saved by frests.Jane: .They can als stp the water frm washing the earth away.Kangkang: Cutting dwn trees is harmful t human beings, animals and plants.Althugh we have built “The Green Great Wall", we still need t d smething t prtect the envirnment.
V-ing作主语,谓语动词用单数
be harmful t 对...有害
虽然/尽管 不与but连用
need t d sth. 需要做某事
Read and remember
What bad weather! 多么糟糕的天气啊!
I'm srry t hear that. 听到那个消息我很难过。
as a result 作为结果
Match the phrases
What bad weather!a lt f as a result cut dwn manyneed t d be harmful t
多么糟糕的天气啊!需要做某事作为结果太多变成/转换成对...有害把...吹走砍倒许多把...冲走
Read 1a and pay attentin t the fllwing sentences.
I culd see nthing.
the indefinite prnun and adverb
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
Use smene, smething, anything, smewhere, anywhere t fill in the blanks.
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 __________.
Cmplete the sentences with the crrect frms f the given phrases in the bx.
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.
As a result
has changed int
A. Listen t the passage and circle the phrases yu hear.
becme weakerdestry the envirnmentdisappear rapidly
n the earthenugh bamb t eat
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
cme t understand
in danger f
fewer and fewer
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