牛津版 (深圳&广州)七年级下册（2012秋审查）Unit 4 Save the trees.课前预习ppt课件

这是一份牛津版 (深圳&广州)七年级下册（2012秋审查）Unit 4 Save the trees.课前预习ppt课件，共60页。PPT课件主要包含了CONTENTS，Lead-in，Passage，Vocabulary，major，discuss，disease，imagine，gas，save等内容，欢迎下载使用。
Read a stry abut a tree
Key wrds and phrases
Trees in ur daily lives
Present cntinuus tense
A stry between a by and a tree
The Apple Tree
A lng time ag, there was a huge apple tree. A little by lved t cme and lay arund it every day. He climbed t the tree tp, ate the apples, tk a nap under the shadw. He lved the tree and the tree lved t play with him.
Time went by. The little by had grwn up and he n lnger played arund the tree every day. One day, the by came back t the tree and he lked sad. “Cme and play with me,” the tree asked the by. “I am n lnger a kid, I dn’t play arund trees any mre.” The by replied, “I want tys. I need mney t buy them.”“Srry, but I dn’t have yu can pick all my apples and sell them. S, yu will have mney.” The by was s excited. He grabbed all the apples n the tree and left happily. The by never came back after he picked the apples. The tree was sad.
One day, the by returned and the tree was s excited. “Cme and play with me,” the tree said. “I dn’t have time t play. I have t wrk fr my family. We need a huse fr shelter. Can yu help me?”“Srry, but I dn’t have a huse. But yu can chp ff my branches t build yur huse.” S the by cut all the branches ff the tree and left happily. The tree was glad t see him happy but the by never came back since then. The tree was again lnely and sad.
One ht summer day, the by returned and the tree was delighted. “Cme and play with me!” the tree said. “I am sad and getting ld. I want t g sailing t relax myself. Can yu give me a bat?”“Use my trunk t build yur bat. Yu can sail far away and be happy.”S the by cut the tree trunk t make a bat. He went sailing and never shwed up fr a lng time. The tree was happy, but it was nt true.
Finally, the by returned after he left fr s many years. “Srry, my by. But I dn’t have anything fr yu anymre. N mre apples fr yu...” the tree said.“I dn’t have teeth t bite,” the by replied.“N mre trunk fr yu t climb n.”“I am t ld fr that nw,” the by said.“I really can’t give yu anything... the nly thing left is my dying rts,” the tree said with tears.“I dn’t need much nw, just a place t rest. I am tired after all these years.” The by replied. “Gd! Old tree rts is the best place t lean n and rest. Cme, cme sit dwn with me and rest.” The by sat dwn and the tree was glad and smiled with tears...
What can we learn frm this stry?
This is a stry f everyne. The tree is ur parent. When we were yung, we lved t play with Mm and Dad. When we grwn up, we left them, and nly came t them when we need smething r when we are in truble. N matter what, parents will always be there and give everything they culd t make yu happy. Yu may think that the by is cruel t the tree but that’s parents.
Trees in ur dairy lives
Rebecca: Hw d trees help us, Dr Jnes? Dr Jnes: They help us in many ways. They keep the air cl and clean.They take in harmful gases frm the air and prduce xygen fr us t breathe. They’re majr fighters against air pllutin.
Rebecca wants t knw mre abut trees and hw they help us. She is interviewing Dr. Jnes abut trees.
Rebecca: I knw trees als make ur lives mre cnvenient. Many f the things in ur daily lives cme frm trees.Fr example, paper and pencils. Dr. Jnes: Yu’re right, Rebecca. In fact, we get a lt mre frm trees.We get fruit and il frm them. Tea als cmes frm the leaves f trees.Lk arund this rm. A lt f the furniture is made f wd.Trees are really imprtant in ur daily lives.
Rebecca: I can’t imagine a wrld withut trees.Dr. Jnes: But we cut dwn millins f trees every year. We shuld stp ding this if we dn’t want a wrld withut trees.
save  v.     拯救 
  Eg: Let's  save  the earth tgether because it is in danger.【同】rescue  v  营救 ；拯救【拓】safety /safe /safely【搭】1）save ne’s life eg: She saved the dg’s life. 2）节约、节省 eg: It can save water t buy this kind f washing machine. 3）储蓄、保存、积攒 eg: In rder t save mney, he made a desk by himself.
2. discuss      v.     讨论
【近】talk abut   谈论【拓】discussin   n  讨论，商讨【搭】discuss with sb. 与……商讨（=have a discussin with） discuss in grups 分组讨论Eg：I discussed the prblem with my parents. We had an interesting discussin abut philsphy.
branch   n.  树枝
Eg：We ften cut sme branches ff the trees in ur city in early spring. 【拓】分公司；分店；分行Eg：The bank has  many branches all ver the cuntry.
fight    v. 与…作斗争
fight-fught-fught  【搭】fight against 与……做斗争 fight fr 为……而斗争，为……而战【变】fighter  n.    战士Eg: Trees are great fighters against pllutin.
against      prep. 反对
【搭】act against 违反 strngly against 强烈反对【拓】(1)  表示“靠，椅” Eg: Many peple are against the wall.  (2)  表示“防止；预防” Eg: Have yu had an injectin（注射剂）against the disease?
example n. 例子
【搭】set an example t sb. 给某人树立一个榜样 fr example=fr instance 例如
eg: Yu shuld set an example with yur wn cnduct. 你要以身作则。
【辨】fr example, such as, like
harmful      adj.   有害的
Eg: Strng sunlight can be harmful t yur baby.【变】harmless   adj.  无害的，无危险的 harm    v./n.   伤害；损害  Eg: These insects are harmless. 【搭】be harmful t = d harm t=be bad fr【反】 be gd fr 对…有好处
prduce   v.  生产；产生  
        【变】prduct  n.   产品，制品 prductin n. 生产 Eg: The factry prduces cars.prduce、prduct和prductin的区别prduce 多指农产品(尤指蔬菜水果等)。 prduct 一般指工业产品，也可泛指各种各样的产品。 prductin 含义广泛，不同场合有不同的意思，可表示“产品，产物”，尤指人类智力或艺术劳动的产品。
majr  adj.   主要的 v. 主修, 专攻
【同】main adj.主要的
【搭】majr in 主修
【变】 v. 主修, 专攻 n.专业；主修 majrity n.大多数
eg: She majred in maths and physics at university. 她在大学期间主修数学和物理。
cnvenient   adj.   方便的
【变】incnvenient   adj.不方便的 cnvenience n. 方便It is cnvenient (fr sb.) t d sth.Eg：It is cnvenient t g there n ft. When wuld it be cnvenient fr yu t g? 你什么时候去方便？
imagine    v.   想像 ，设想
【搭】imagine ding sth.【变】imaginatin     n.  想像力；想像 imaginative adj. 富于想像力的Eg : Can yu imagine life withut electricity? 你能想像没有电的生活吗？He has a lively imaginatin. 他有丰富的想像力。
disease n. 疾病
【同】illnessHe fught against the disease fr a lng time.他同疾病做了很长时间的斗争。
dig-dug-dug
【搭】dig a hleJust nw I saw him ________（dig） carrts in his garden.刚才我看见他在菜园里挖胡萝卜。
in fact 确切地说
【同】actually=as a matter f fact
【同】absrb; accept
【拓】关于take的短语：take away 拿走，拿去，使离开take ff (飞机)起飞，脱掉(衣帽/鞋)take care 小心, 注意take it easy 放心好了，别着急，从容，不紧张take part in… 参加…
millins f 数以百万计
【拓】单位词：hundred, thusand , millin, billin 用法：表示具体数量，前有数字，后不用复数；表示不确定数量，前无数字，后用复数，且跟f
16. 与lk有关的短语
lk arund 环顾四周lk after 照顾，照料，关心；lk at 看，注视；lk back 回顾，回想lk dwn n /upn 看不起，瞧不起；lk fr 寻找；lk frward t 期待，盼望；lk like 看起来像；lk up（in a dictinary） 查阅，查找………
be made … 由….制成
a. be made f sth. 由… 制成(制成品能看出原材料，发生了物理变化)Our desks are made f wd. 我们的桌子由木头做的。This salad is made f apples and strawberries.这种沙拉是由苹果和草莓做的。 
b. be made frm  由… 制成（制成品看不出原材料，发生了化学变化）This kind f paper is made frm grass. 这种纸由草做成的。Bread is made frm crn.面包是小麦做的。
c. be made up f由…构成、一般是多种构成。
furniture 家具
cntainer 容器
Which ne is missing？
Mine sweeping(扫雷游戏，单词下埋着7颗雷，学生选择单词读出，如果单词下没雷则可得分，如果所读单词下有雷，不能得分。)
Ⅰ.根据要求写出相应的单词1. discuss(名词)____________ 2. against(反义词)____________3. fight(名词) ____________ 4. prduce(名词)____________5. example(复数)____________6. branch(复数)____________7. carry(过去式)____________8. dig(过去式)____________9. disease(复数)____________10. harm(形容词)____________
Ⅱ.根据句子意思，用所给提示词的适当形式填空 1. discuss1)The tpic caused a ht ____________ in ur classrm. 2)We ____________ the plan nw in the meeting rm. 2. fight1)Tw men ____________ with each ther in the street yesterday. 2)We all knw he is a gd ____________ in the bxing match. 3. prduce1)The team ____________ a new kind f tl last mnth. 2)The new ____________ was first made in a factry in China.
 4. imagine1)I always imagine ____________(have)a lt f mney. 2)When I was yung, I always__________ (imagine)my beautiful future.  5. harmfulSmking is ____________ t yur health. =Smking des ____________ t yur health. =Smking is ____________ fr yur health.
fighter/fighting
prduct/prductin
are discussing
Ⅰ.词汇测试i. 从下列每小题的A、B、C三个选项中选出可以替换画线部分的最佳选项。 (　　)1. —T help my brther with English is the majr thing that I shuld d tday.—Then yu have n time t g shpping with me?A. big and imprtantB. smallC. easy(　　)2. —Trees prduce xygen fr us t breathe. —Yu are true. It’s imprtant fr us.A. getB. makeC. g(　　)3. —What are the students ding? —They are discussing the cming festival in the classrm nw. A. asking abut B. talking abutC. telling abut(　　)4. —D yu cme frm Australia? —N.A. Are…frmB. D…frmC. D…cme (　　)5. —If yu want t g camping, we can prvide yu with a tent.—Thank yu a lt. A. giveB. shwC. make(　　)6. —D yu think that ne pill can cure all kinds f disease in the future? —I hpe s.A. cancerB. illnessC. stmachache(　　)7. —A wide new rad has been built s it is cnvenient fr peple t g t the city centre. —Sunds great!A. imprtantB. hardC. easy
ii. 根据句子意思，从下列每小题的A、B、C三个选项中选出恰当的词语完成句子。 (　　)8. T ________ a persn is t keep him r her safe frm death, harm, lss, etc. A. saveB. missC. imagine(　　)9. —Taking exercise is ________ health. —But we can hardly stick with it. A. bad frB. gd frC. made f(　　)10. ________ are part f a tree that grws ut frm the main stem and n which leaves, flwers and fruit grw. A. BranchesB. RtsC. Leaves(　　)11. We must ________ pllutin. That is, we must try hard t stp it. A. act asB. take inC. fight against(　　)12. A(n)__ is smething such as an bject, a fact r a situatin that shws, explains r supprts what ne says. A. exampleB. gasC. diary(　　)13. If yu ________ smething, yu think abut smething and yur mind frms a picture r idea f it. A. recrdB. imagineC. fight(　　)14. —Nt all tables are ________ wd. —Yu’re right. I have a plastic table in my rm. A. gd frB. made upC. made f(　　)15. —Oxygen is a kind f ________. —We can’t live withut it. A. rtB. gasC. air
Ⅱ.根据句子意思，用所给提示词的适当形式填空1. The factry always gives sme bad ____________(气体)int the air. 2. Wuld yu give me a(an) ______________(例子)?3. Traffic jam is the ____________(主要的)prblem f this city.4. We shuld try ur best ____________(与……斗争)against air pllutin.5. The teacher asks us ____________(discuss)with each ther abut this prblem.6. This machine always ____________(prduce)much strange gas when it wrks.7. Eating t much junk fd is ____________(harm)t ur health.8. The farmer ____________(dig)ut a lt f carrts frm his land yesterday. 9. It is faster and ____________(cnvenient)t travel by plane than by train nwadays. 10. She ____________(carry)three bxes t the classrm just nw.
Ⅲ.真题再现(　　)1 .(深中期中)— As we all knw, eating t much junk fd ________ ur health. A. d harm t B. is bad t C. is harmful t(　　)2.(深中期中)—What des the wrd____? —I dn’t knw either. Why nt ___ the meaning in the dictinary? A. means; lk up B. mean; lk arund C. mean; lk up(　　)3.(深中期中)— Trees are really imprtant t us. —Yes, I can nt imagine ____ in a wrld ______ trees. A. living; with B. living; withut C. t live; withut  
mre cnvenient
(　　)4.(广东深圳高级中学期末)—Jim, I heard that yu mved t a new place. —Right, I nw live next t a supermarket. It’s very ________. A. safeB. cnvenientC. lnely(　　)5.(湖北随州中考)I tried t make the baby ________ by singing, and that wrked well at last. A. t stp t cry　B. t stp crying　C. stp t cry　D. stp crying(　　)6.(甘肃天水中考)________ f the farmland here ________ with rice. A. Tw thirds; is cvering B. Tw third; is cvered C. Secnd third; are cveringD. Tw thirds; is cvered(　　)7.(山东东营中考)________ running after success, we have a lt f ther interesting things t d in ur lives. A. By　B. On　C. Besides　D. Except(　　)8.(广东高中期末)—There is t much air pllutin nw. We shuld __ it and prtect ur envirnment. —Yes. We can plant trees. They are ________ t the air. A. be strict abut; grateful B. fight against; helpful C. take care f; useful(　　)9.(广东深圳福苑学校期中)As students, ur ________ task is t study hard. A. busyB. majrC. interesting(　　)10.(深圳耀华实验学校期中)—Hw can I take care f the plant?—It needs t ________ lts f water every day, s yu have t water it every day.A. wrk utB. take inC. give up
现在进行时表示此时此刻正在发生的事或正在进行的动作，常和时间状语nw, lk, listen, at present, at the mment, these days连用。
g-ging, ask-asking, lk-lking
take-taking,make-making, write-writing
swim-swimmingstp-stppingplan-planning
tie-tying,die-dying,lie-lying
Are yu wrking hard this term?
—What are yu ding nw? —I’m ding my maths hmewrk.
这些动词往往是一些表示位置移动变化的动词，如： g, cme, leave, fly, mve, start, begin, arrive等，表按计划安排即将发生的动作。
Next mnth my family is mving t Beijing.
常与副词always, cnstantly, cntinually连用，常常带有说话人的某种感情色彩，如赞扬、厌恶、不满、遗憾等。
She is always thinking f her sn.
He always ges t schl n time.
He is always cmplaining that hmewrk is t much t cmplete.
Jack is discussing the game with his friends when I get there. A. talking abut B. taking part in C. lighting up2. We need _______________(discuss) where we shall g this week.
The ld peple are against the plan. A. dn’t want B. dn’t believe C. dn’t agree n2. Tm has been a fire ___________(fight) fr five years.
Srry t yu!Here are three kinds f punishment fr yu t chse
选词填空 。 fight fr fight againstWe shuld try ur best t ____________nise pllutin.Peple used t __________________freedm and equal rights.
fight against
选词填空 。 be made f/ frm/ up fThe passage （文章）_____________five paragraphs.This fishing bat _____________f irn and steel.The red wine ____________graphs.
is made up f
is made frm
语法填空。 Yu lk tired. Why nt stp _________(wrk) nw?I shuldn’t stp ______(have) a rest nw, because I have lts f hmewrk t d.
Cngratulatins t yu!Here are three gifts fr yu t chse.
翻译。多读点报纸对你的写作有好处。Reading mre newspapers _____ _________ ________ yur writing.2. 这台机器很有用，例如它可以帮你浇花。This machine is very helpful.____ ________, it can help yu water flwers.
is gd fr
Fr example
用所给动词的适当形式填空。She ________(g) t schl at seven ’clck every day.Amy ____________(be) here just nw.My father_________________(make) tys these days.Lucy __________(cme) t China in a mnth.
Why d the lins eat raw meet(生肉）?
Because they dn’t knw hw t ck it!
He fell ff the bike and hurt his leg yesterday. _______, he had t stay at hme fr tw r three mnths. A. S that B. As a result C. Such as2. Trees can _____us _________fruit. They are very useful and imprtant in ur daily lives. A. prtect ,with B. prvide, with C. prvide ,fr
1. If yu can’t g t Lndn, yu can clse yur eyes and imagine ___there. A. g B. t g C. ging---Why shuld we _________n the flr if there is a fire? A. get ff B. get up C. get dwn
Ⅰ.用所给动词的一般现在时或现在进行时完成下列句子1. ____________(I/nt/watch)televisin very ften. 2. Listen! Smebdy ____________(sing). 3. The by ____________(draw)a picture nw. 4. Hw ften ____________(yu/read)a newspaper. 5. —Excuse me, but _________________(yu/sit)in my place. —Oh, I’m srry. 6. What is ur granddaughter ding? She ____________(listen)t music. 7. —____________ Helen ____________(wash)clthes? —Yes, she is. 8. Lk! The girls ____________(dance)in the classrm. 9. —Where is Paul?—In the kitchen, ____________(he/ck)smething. 10. Usually Tm ____________(enjy)parties but he ____________(nt/enjy)this ne very
I dn’t watch
yu are sitting
is listening
are dancing
he is cking
desn’t enjy
Ⅱ 句型转换1. They are ding husewrk.(改为一般疑问句和否定句)①_______________________________________________________________________②_______________________________________________________________________2. The students are cleaning the classrm.(改为一般疑问句并作肯定和否定回答)①_______________________________________________________________________ ②_______________________________________________________________________  
3. I’m playing the ftball in the playgrund.(改为否定句和一般疑问句)①_______________________________________________________________________②_______________________________________________________________________4. Tm is reading bks in his study rm.(改为一般疑问句和对划线部分提问)①_______________________________________________________________________②_______________________________________________________________________5. My mther is cking sme nice fd nw.(改为一般疑问句并作肯定和否定回答)①_______________________________________________________________________②_______________________________________________________________________
Are they ding husewrk?
They aren’t ding husewrk.
Are the students cleaning the classrm?
Yes, they are. / N, they aren’t.
I am nt playing ftball in the playgrund.
Are yu playing the ftball in the playgrund?
Is Tm reading bks in his study rm?
What is Tm ding in his study rm?
Is my mther cking any nice fd nw?
Yes, she is. / N, she isn’t.
Ⅱ.单项选择(时态混合训练)(　　)1.(广东深圳中学期中)—Lk! Many students ________ n the playgrund. —They always ________ there and they have t practice every day. A. sing; sing B. are singing; singC. are singing; are singing(　　)2.(广东深圳中学期中)—It ________ heavily utside. Yu had better take umbrella with yu. —Thanks. I ________ it t yu when I get t schl tmrrw. A. rains; will return B. is raining; will return C. is raining; return(　　)3.(湖南株洲中考)Dn’t enter the area. The students ________ an English exam. A. takes　B. are taking　C. have taken(　　)4.(广东深圳锦华实验中学期中)—________ yur parents ________ TV nw? —Yes. They are in the living rm. A. Did; watchB. Are; watchingC. Is; watch(　　)5.(湖北黄冈中考)—Where are yu ging, Bb? —T g hiking. Eric ________ fr me at the schl gate! A. was waiting　B. waits　C. waited　D. is waiting  (　　)6.(湖北咸宁中考)—Tday’s yung peple can’t live withut smart phnes. —They keep their hands n the phnes wherever they g, even while they ________ meals. A. have　B. are having　C. were having　D. will have
(　　)7.(吉林长春农安新农竞赛)Lk! The students ____ basketball. They ften _______ it after schl. A. are playing; play　B. play; are playing　C. play; play　D. are playing; are playing(　　)8.(广东深圳实验学校期末)My uncle usually ________ tea after dinner, but nw he ________ cffee.A. drink; is drinking B. drinks; is drinking C.is drinking; drinks D. is drinking; drink (　　)9.(陕西西安莲湖期末)Tm ________ late last night, and he ________ nw. A. stayed; slept　B. stayed up; slept　C. stayed up; is sleeping　D. stayed; is sleeping(　　)10.(广东深圳福田外国语期中)It’s 10 am, everyne in the classrm ________. A. is studyingB. are studyingC. studies  (　　)11.(山东莱芜期末)—Where is yur sister, Ben? —She ________ in the music rm. A. singing　B. is singing　C. sings　D. sing (　　)12.(2015山东菏泽中考)—Hi, Wang Ning! Hw’s the weather in Heze nw? —It is terrible. It ________ all the mrning. A. rains　B. is raining　C. rained (　　)13.(2015辽宁沈阳中考)—Lk! The ld man ________ a big bx int the huse. —Let’s g and help him. A. pulls　B. pulled　C. is pulling　D. has pulled
(　　)14.(重庆万州教学质量检测)—________ he at hme nw? —Yes, he is. He is ________ cmputer games. A. Is; playing　B. Des; play　C. D; playing　D. Is; plays(　　)15.(吉林长春名校调研期中)—What’s yur friend ding? —He ________. A. swims　B. is swiming　C. is swimming　D. swimming(　　)16. Everyne ________ t their teacher in the classrm. A. are listening B. is listening C. listen D. listens(　　)17. They are singing and ________ tgether at the party nw. A. dance B. danced C. dancing D. dances(　　)18. The twins usually ________ milk and bread fr breakfast, but Jim ________ sme cffee fr it. A. have; have B. have; has C. has; haveD. are having; has(　　)19. Kate ________ playing chess. A. am B. is C. are D. be(　　)20. She ________ up at six in the mrning. A. get B. gets C. gettingD. is getting
请你根据下面的内容提示，以The uses f trees为题，写一篇关于树的用途的文章。60词以上，可以适当发挥。(开头已经给出，不计入总词数)提示： 1. 树可以为我们提供很多有用的东西，如水果，药品，木材等； 2. 树为人类提供氧气，净化空气，美化环境，有利于生态环境的保护； 3. 树可以为动物和鸟类提供家园和足够的食物，保持生态平衡； 4. 树能够防止水土流失和减少土地变成沙漠。
参考词汇 ： wd木材envirnment环境 desert沙漠 imagine想象 medicine药品xygen氧气prevent/stp…frm阻止 the balance f nature生态平衡 earth mves away with water水土流失
The uses f treesFr humans, trees have a lt f uses. Trees can prvide us with many things, such as fruit, medicine and wd. Trees can prduce xygen fr peple t breathe, keep air cl and clean. We can make ur envirnment better by prtecting trees. Trees are hme t animals and birds and prvide them with enugh fd. Trees can help keep the balance f nature. Trees can stp earth mving away with water, and then make less land becme a desert. We can’t imagine a wrld withut trees.