仁爱科普版九年级上册Topic 2 All these problems are very serious.教课课件ppt

这是一份仁爱科普版九年级上册Topic 2 All these problems are very serious.教课课件ppt，文件包含Unit2Topic2SectionAppt、Unit2Topic2SectionCppt、p35-1amp3、p36-4-Amp3、p36-4-Bmp3、p39-1amp3、p35-1awmv、p39-1awmv等8份课件配套教学资源，其中PPT共46页， 欢迎下载使用。
1.a (large) number f … 许多的+可数名词复数 做主语时谓语动词用复数。 the number f … ….的数量 +可数名词复数 做主语时谓语动词用单数。①There ___(be) ________________________ (许多学生) in ur schl.②______________________(学生的数量) ____(be) abut 2000.2. althugh 相当thugh ,但althugh较正式。 althugh, thugh 不与but, hwever 同时使用，但可与yet, still 连用。加强语气时，常用even thugh, 而不说even althugh.
a (large) number f students
The number f students
walk dwn/alng 沿着…走as a result 结果a lt f rich land 大量肥沃的土地change int …转换成 (change… int...把..变成…)affect the weather 影响天气stp / prevent /keep sb/sth frm ding sth 阻止某某做某事7. blw.. away 吹走 blw---blew –blwn 8. be saved 被储存 9. human being 人类 (human beings) 10. prtect the envirnment 保护环境11. earth 泥土 / 地球 n the earth 在地球上12.wash …away 将…冲走13.different types f (=kinds/srts) 各种…14.the reasns fr … …的理由/原因
15. live a happy/quiet life 过着快乐/平静的生活16.trees left 剩下的树17.cme int being 开始存在，产生。 The first cmputer came int being in in danger (f) 处于(…的)危险中19.die ut 灭绝 die—dying20.plenty f…= a lt f …=lts f …许多的 + 可数名词复数/ 不可数名词/集体名词21.the imprtance f prtecting animals 保护动物的重要性 (adj. imprtant)22. cme t understand 开始知道 (cme t d sth开始/逐渐做某事)
1.The wind utside is blwing wind is s strng.3. A lt f water can ____________ (被储存) bad weather! (同义句)=______ ______ the weather is !5.I culdn’t see anything. (同义句)=(砍倒) trees _______________ (对…有害) _____________ (人类).=_____________________________________ can als stp the water frm ________ the earth________.（冲走）8. The number f the students ___abut 2000.9. A large number f kids _____ playing are fewer trees _______(剩下的).
be saved by
I culd see nthing.
Cutting dwn
is harmful t/des harm t/is bad fr
human beings
washing away
It’s harmful t human beings, animals and plants t cut dwn trees.
many trees
wash the earth away
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
3 D yu knw hw sandstrms cme int being? Number the pictures and talk abut the sandstrm in grups.
sandstrms cme int being
cut dwn trees
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
1a Listen, lk and say.
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
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
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
15. live a happy/quiet life 16.trees left 剩下的树17.cme int being 开始存在，产生。 The first cmputer came int being in in danger (f) 处于(…的)危险中19.die ut 灭绝 die—dying20.plenty f…= a lt f …=lts f …许多的 + 可数名词复数/ 不可数名词/集体名词21.the imprtance f prtecting animals 保护动物的重要性 (adj. imprtant)22. cme t understand 开始知道 (cme t d sth开始/逐渐做某事)
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
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.