初中沪教牛津版(六三制)Unit 4 Save the trees.评课ppt课件

这是一份初中沪教牛津版(六三制)Unit 4 Save the trees.评课ppt课件，共26页。PPT课件主要包含了Listening，Speaking 等内容，欢迎下载使用。
Why is it imprtant fr us t plant mre trees?1. Trees keep the air cl and take in harmful gases frm the prduce xygen fr us t breathe.4. We get fruit and il frm trees.5. A lt f the furniture is made f wd.
What shuld we d?
1. We shuld stp cutting dwn trees.2. We shuld plant mre trees.3. Trees are very imprtant in ur daily life. It is very imprtant fr us t prtect trees.
Pine trees 松树
常绿树，绝大多数是高大乔木，高20～50米，最高可达75米（美国的糖松）。极少数为灌木状，如偃松和地盘松。松树为轮状分枝，节间长，小枝比较细弱平直或略向下弯曲，针叶细长成束。因此，其树冠看起来篷松不紧凑，“松”字正是其树冠特征的形象描述。所以，“松”就是树冠篷松的一类树。松树坚固，寿命十分长。
When yu are listening, pay special attentin t the fllwing wrds. They will help yu understand the text.First(ly), Secnd(ly), etc.t intrduce a list r a sequence f things.Fr example, …t give an example r examplesHwever, … t give a different idea
1　先后次序关系：first; secnd; at last; next; finally; t begin with, first f all
2　因果关系：because; because f this; as a result f; therefre, s; s that
3　转折关系：but; thugh; hwever; even thugh; 4　并列关系：and; als; t, either..., r...; , at the same time
We can find pine trees in almst every ______ f China.Peple grw pine trees in cities because they are always ______ and they make the envirnment mre _______.Pine trees are very ________. —They can grw in difficult envirnments.
Listen t a radi prgramme abut pine trees and cmplete the ntes belw. Write ne wrd r figure in each blank.
Pine trees have very ______ lives. —Sme f them live mre than ______ years.Pine trees are useful. —We use them t make ________. —We use them in ______ medicine t fight againest diseases.
Hst: Welcme t The Natural Wrld! Peple tell us they want t learn mre abut different kinds f trees, s I’m ging t tell yu smething abut pine trees tday. Yu can find pine trees in almst every part f China. Peple grw trees in cities because they’re always green. They make the envirnment mre beautiful. They are very strng plants. They can grw in difficult envirnments.
Read after the tapescript.
They als have very lng lives. Sme f them can live mre than a thusand years. We make use f pine trees in many ways. First, we use the wd frm them t make nice furniture. Secnd, we use them in Chinese medicine. We use almst every part f them t fight against different disease.
1　Pine trees exist in almst every part f China. (　) 2　Pine trees can’t make the envirnment mre beautiful.(　)3　Pine trees are week plants.(　)4　Pine trees have very lng lives.(　)5　The wd frm pine can be t made nice furniture.(　)
Chse T (true) r F (false)
Listen t sngs and fill in wrds.
_______, _______, little ____,Hw I wnder ____ yu are!Up abve the _____ s high,Like a diamnd in the ___!_______, _______, little ____,Hw I wnder ____ yu are!
After listening t the sng, we can knw what will we learn tday is Cnsnants. We have been learned several cnsnants in the past classes. Tday we will learn t say the /sk/, /sp/, /st/, /sl/, /sm/, /pl/, /pr/, /kw/ and /tw/ sunds. S firstly we will learn the prnunciatin skills f these cnsnants.
1.Stanley is small and slim. He is a smart student, but he wrks slwly when he is queen likes playing sprt. She likes skating a lt. She can skate at a very high speed because she practises a planned t have a quick meeting n the prject fr twenty minutes, but the speaker did nt stp speaking until twenty past twelve.
Read these sentences. Pay attentin t the letters in bld.
Read the fllwing wrds.
/sk/　Skipskirtsketchskillskinskim/sp/　specificsptspreadspiritsparespil/st/　 state status stickstrikestck staff/sl/　 slipslidesliceslackslightsleep/sm/ smthsmellsmallsmilesmgsmear
/pl/　plantplain place platepleasureplt/pr/　presentprcess prperpracticeprmteprmpt/kw/ qualityqutequite quarterquietquit/tw/　twisttwenty twelvetwtwicetwin
In grups, discuss why trees are imprtant.
Trees are gd fr us. We can make furniture, pencils, paper and s n with the wd f trees. We als get xygen frm trees. Tress are gd fr the wrld. It can reduce wind speed, cnserve water and sil, regulate climate, purify air, eliminate pllutin, green barrier, kill bacteria, prevent wind and sand, make xygen and reduce nise.
1.We have listened t an interview trees.2. We have learned t say /sk/ /sp/ / st / /sl / /sm / / pl / / pl / and/ tw / sunds.3. We have discussed the imprtance f trees.
一、找出每组划线部分发音与其他三项不同的一项。( )1. A. plane B. please C. practice D. plan( )2. A. ski B. sky C. schl D. speed( )3. A. stre B. spend C. stp D. stand( )4. A. price B. present C. pleasure D. pretty( )5. A. twice B. quick C. quite D. quiet
2.根据实际情况回答下列问题。1. D yu think trees are imprtant t us ?2. What can we get frm trees?3. Why d sme ld peple like t sit under big trees?4. Hw can trees help clean the air?5. D yu plant any trees arund yur huse?