unit-4-save-the-trees

1、Unit 4 Save the trees重點(diǎn)單詞Save節(jié)約，節(jié)省Branch n樹枝，分歧Against反對，違反 gas氣體，毒氣 major主要的 imagi ne想象，想至UHole n.洞pine n松樹root n.根，根源 exa mple 例子 produce n.農(nóng)產(chǎn)品 convenient adj 方便的disease n.疾病 carry拿，搬運(yùn)discuss V討論，談?wù)揻ight v.與-戰(zhàn)斗harmful有害的oxyge n n.氧氣furniture 家具dig V.挖container n 容器必背短語：take in吸收in fact實(shí)際上，事實(shí)上milli

2、ons of數(shù)以百萬的come from 來自 look around四周環(huán)顧(be) good for 對有害for exa mple 例女口 (be) made of 由組成仔細(xì)講解：Hi ?1f I plant this seed in the ground ，will it become a pear tree，由if引導(dǎo)的條件狀語從句，表示”如果”， 如果主句(包括祈使句、含有情態(tài)動詞can、may、must)用一般現(xiàn)在時，從句也要用一般現(xiàn)在時； 主句用過去時，從句也要用過去的某種時態(tài)，如果主句是一般將來時態(tài)，從句要用一般現(xiàn)在時表示將來。2. They help fight aga

3、inst p olluti on. (p age44)Fight vi.與.斗爭，常與介詞against或with連用。女口： They fought against the enemy fiercely 擴(kuò)展：fight vt.戰(zhàn)斗，反對，可直接跟賓語。女口： They fought their enemies bravely.他們勇敢殺敵Be against反對，be for 贊同擴(kuò)展：against prep.意為“違背，違抗；緊靠，防備”。女口： We take out umbrella just against a rainy day我們帶上雨傘以防雨天。P roduce不可數(shù)n.農(nóng)

4、產(chǎn)品”或 自然產(chǎn)品”的總稱，The farmers brought their produce to town early each Saturday morning.P roduct可數(shù)n.產(chǎn)物，產(chǎn)品”多指工業(yè)產(chǎn) 品，亦可指任何體力勞動或腦力勞動Mach in ery, cars, ships are all in dustrial p roducts.意為：產(chǎn)品，農(nóng)產(chǎn)品。3.They take in harmful gases from the air and produce oxygen for us to breathe.harmful adj.有害的；harm n. vt.損害；傷害

5、；危害；harmless adj無害的，不致傷 的.女口： It S harmful to your eyes to read in the dark. No harm would come to us.p roduce vt.產(chǎn)生，生產(chǎn)。也可以作為不可數(shù)名詞所生的東西或發(fā)源于其它事物的東西p roduct ion不可數(shù)n.生產(chǎn)，制造”指生產(chǎn)的行為。也可指產(chǎn)量”The company is famous for the p roduct ion of small cars.成品+be made in+地點(diǎn)產(chǎn)于某地原料 +be made in to+成品被制成成品 +be made of+ 原料

6、（看得出，物理）由制成成品+be made by+制造者被制造成品 +be made from+原料（看不出，化學(xué)）由制成My piano is made in Beiji ng. The table is made of wood. Grapes are made into wine.（記憶順口溜：物質(zhì)不變用The birthday cake is made by my mother.Wine is made from grap es.The bike is made in Chi na.物質(zhì)變化是from）4.A lot of the furn iture is made of wood.

7、（ p age45）Furniture不可數(shù)名詞，家具。a set of furniture 一套家具; 一件家具 a piece of furniture。5can t imagine a world without trees.Imagine vt.想像；猜想；臆斷.|后面可跟名詞，代詞，動名詞和從句作賓語。Imagi ne指設(shè)想與事實(shí)相反的東西， 指錯誤的猜想；也可以表示 猜想的東西沒有確定性，只 是一種印象。We can hardly imagi ne life without water. 我們簡直不敢想象沒有水的生活。guess缺之任何一句或資料而憑主 觀印象的猜想Open you

8、r eyes, and guess who has the pen?6.However,However 副詞，表轉(zhuǎn)折，意為：然而；不過。However副詞位于句首、居中、句末，要 用逗號與其他部分隔開。Later, however, he changed his mind.But連詞位于句首或居中。but之后一 般不得使用逗號But I did tell you about the exam in ati on!Hate討厭，不喜歡Hate doing sth.表示習(xí)慣性動作Hate to do sh.表示某一次具體的仃為of,7.She can skate at a very high sp

9、eed because she practises a lot. P ractise vt.訓(xùn)練，練習(xí)。賓語可接名詞，代詞，動名詞。女口： Its very important to practiselistening.練習(xí)聽力是非常重要的。 Practise vi. 女口： Dont forget to practiseafter class.課后別忘了練習(xí)。 practise的名詞是practice不可數(shù)名詞。通常指經(jīng)常性或系統(tǒng)性的重復(fù)練習(xí)。P racticemakes perfect.是一句諺語，意思是 熟能生巧”8.But the sp eaker did not st op sp e

10、ak ing until twe nty p ast twelve.（ p age52）Not.until意為：直到.才.。主語的動詞一般為非延續(xù)性動詞，它所表示的動作 直到until所表示的時間才發(fā)生。女口： We won t see any flowers until May.Unitil連詞，意為：直到.時。用于肯定句，主句的動詞一般為延續(xù)性動詞。clock.女口： He waits the children are asleep.I shall stay here until twelve oAno ther指三者或三者以上中的 另一個”I don t like this one. P

11、I ease sh me ano ther.otherAdj.其他的，其余的，常用復(fù)數(shù)形 式Ask some other people.the other兩者中 另一個，one the othrer 個另一個He has two daughters. One is a nu rse, the other is a worker.others其他的人或物There are no others.沒有別的 了。the others其余的人或物，表示一個范圍內(nèi)其 他全部Two boys will go to the zoo, and the others will stay at home.9.ow1

12、0.辨析 Carry , take, bringcarry搬，扛不論移動的方向The mother carries her baby in her arm。bring帶來，帶走 以說話人為中心， 把某物帶到說話人身邊They rgoing to bring some gifts for us on Christmas.take以說話人為中心，把某物帶到 遠(yuǎn)處PI ease take these books to the library for me.11.It covers five and a half milli on square kilometers of the Amaz on Ba

13、s in and sp reads across nine coun tries.(1)Cover v.覆蓋，遮蓋；cove with 用把“蓋上； be covered with被.覆蓋著。女口： The road is usually covered with snow in winterCover可數(shù)名詞，意為：覆蓋物，蓋子，封面女口： The new book needs a new cover.1. 區(qū)別：across, cross, through， overacross介詞，在空間內(nèi)從一端到另一端，或是十字交叉 穿過.（過河，過橋，過馬路）cross動詞，含義同上through介

14、詞。穿過，通過。動作是立體空間進(jìn)行，穿過沙漠，森林，窗戶over動詞，則是對于位置的咼低而言，強(qiáng)調(diào)翻越穿越高的障礙物， 如籬笆，柵欄，山脈12. Ma ny living thi ngs lose their homes because of deforestatio n.許多生物因為森林砍伐失去家園。Forestation造林 deforestatio n森林采伐all livi ng thi ngs所有生物livi ng n.生物adj.活著的、有生命的，主要用于 作前置定語及冠詞the之后，表示一類人the livi ng-活著的人們alive活著的、有活力的The fish is st

15、ill alive/li ving.Live活的”有生命的”活生生的連a live fish-一條活魚；laiv主要用來說鳥或其他動物a live tiger一只活老虎實(shí)況的、現(xiàn)場直播的a live report-現(xiàn)場報道lively活潑的、有生氣的、生動的a lively child活潑的孩子a lively discussi on熱烈的討論13.AS a result, the nu mber of ki nds of ani mals, birds, in sects and trees in the world is decreas ing.結(jié)果，世界上動物、鳥類、昆蟲和樹的種類的數(shù)目

16、正在減少。the nu mber of的數(shù)量，后接復(fù)數(shù)名詞， 謂語動詞要用單數(shù)，The nu mber of the stude nts in our class is 45.a nu mber of大量，許多=many，后接復(fù)數(shù)名 詞，謂語動詞要用復(fù)數(shù)A number ofstudents arep lay ing football.14.Tea is the most popu lar drink in the world besides water. 茶是世界上除了水之外最受歡迎的飲料。besides除了之外”（還有） 相當(dāng)于加上連Besides his wife， his daught

17、er also went to see him.exce pt除了之外（沒有） 相當(dāng)于減去連I go to school every day exce pt but Sun daybut介詞，除了。只能和不定代 詞女口 no thi ng, all anything， no one, anyone等連用。Nobody knows the truth but Tom.語法：現(xiàn)在進(jìn)行時一、教材經(jīng)典句子：1. The childre n are p layi ng in the p ark2. We are staying at Peter s house at the moment二、現(xiàn)在進(jìn)行時：

18、一般表示此刻正在進(jìn)行的動作，也表示目前階段一直進(jìn)行的動作。三、用法：1. 現(xiàn)在進(jìn)行時一般表示此刻正在進(jìn)行的動作，常和now，right now，at this moment等時間狀語連用，以及動詞look，listen等。女口： Look ！ She is cleaning my room now。2現(xiàn)在進(jìn)行時表示目前階段一直進(jìn)行的動作，但是說話時不一定正在發(fā)生，常和 “these daysthis week，at present等連用。女口： Is Jame working hard this term?注意：1. 一些表示狀態(tài)和意愿的動詞，如be,like,wa nt,kow n,thi

19、nk,have等，不能用于現(xiàn)在進(jìn)行時態(tài)。女口：I wa nt to go home now。2. Come, go，leave, stay，start，arrive等表示往返或位置轉(zhuǎn)移的動詞，可以用現(xiàn)在進(jìn)行tomorrow，next week ”等表示將來的時間狀語也可表示習(xí)慣的、 經(jīng)常重復(fù)的動作。 意為總是， 如： Mary is always talking about her son.時表示將要發(fā)生的動作,這些動詞可以與 連用。3. 現(xiàn)在進(jìn)行時與 always, often 等詞連用,老師。此時常常有埋怨、贊賞的色彩。四、結(jié)構(gòu)：1. 肯定句：主語 +be (am, is, are) +

20、現(xiàn)在分詞 + 其他 如:He is doing his homework .2. 否定句：主語 +be (am, is, are) +not+現(xiàn)在分詞 + 其他 女口： he isn Writing now ?3. 一般疑問句： be(am, is, are) +主語+現(xiàn)在分詞+其他？如： Are you singing ？ yes , I am.4. 特殊疑問句：疑問詞 +be(am, is, are) +主語+現(xiàn)在分詞 +其他？-What are you doing? -I am doing my homework.A. 現(xiàn)在分詞的構(gòu)成：(1) 一般情況下，直接加ing,如：cook-co

21、oking(2) 以不發(fā)音的 e結(jié)尾，去 e力卩 ing, 如： make-making, taste-tasting( 3)如果末尾是一個元音字母和一個輔音字母,雙寫末尾的輔音字母,再加 ing,如： run-running, stop-stopping sit-sittingget-getting run-running forget-forgetting begin-beginning4）以 ie 結(jié)尾的動詞，改 ie 為 y 加 ing ，die-dying lie-lying課堂1寫出下列動詞的現(xiàn)在分詞形式wo rk d a n ceru n _havesitplaystudymix

22、swim練習(xí)_study write_ listen _singshop_2單選：1、 Look! Hetheirmotherdothehousework.A. is helping B. arehelp C.is help D.is helpping2、aretheboysdoing?Theyaresingingin theroom.A .Who B .How C.What D.Where3、 Dont talk here.My mother.A. is sleeping B .aresleeping C.sleeping D .sleep4 、Danny . Don t call him.

23、A. iswriteing B .iswriting C.writing D .writes5、- Whenheback?-Sorry, I don t know.A. does,come B.arecoming C.iscome D.iscoming 3填空1、2、3、4、(lie)in bed.Itstenoclock. My m ot h e r _What he(mend)?We(play)gamesnow.Whatyou(do)thesedays?5、6、 Who_7 、The girlhe_ （clean）the classroom?（sing）in the next room?（

24、like）wearing a sweater.Look! She（wear）ared sweatertoday.語法鞏固：1、look! Peter TV happily, but his parentsare busy in the kitchen.2、A. is watching B. watches C. watched D. will watch May I speakto the principal?Sorry, he a meeting now. Can I takea message?A. is having B. had C.has D. will have3、Where is

25、 Sally? Her mother for her everywhere.A. looks B. looked C.is looking D. was looking4、 Dad for paris tomorrow. Really? Lets go and ask him to bring back somepresentsfor us.A. Are going to leave B. Is leaving C. Left D. leaves5、Listen! you someonecrying?A. Do; hear B. Are; hearing C. Did; hear D. Wil

26、l; hear6、 Can your brother make a model airplane? Yes, theseweeks he a new school.A. builds B. is builtC. will built D. is building7、As we know, things like that all over the world every day.A. Happens B. Are happenedC.Are happening D. Will be happened8、 Sam,comedownstairs,please.I needyour help.I d

27、ont think I can,mum. I on the phone.A. talk B. talked C. talking D. am talking單元練習(xí)I .詞匯：根據(jù)漢語或首字母提示寫單詞，補(bǔ)全句子。1. In a forest, peoplecan havemore （氧氣） to breathe.2. Lets（討論 ）the importance of trees.3. The （氣體） from the paperfactory smells very bad.4. There are a lot of （家具） in the house.5. Let s help sa

28、vethis small tree. It hasgot a （疾?。?6. The p treesare always green around the year.them.pollution.7. Someforests are in danger.So people are trying to s8. To have a better living environment, we must fight a 9. Wecanti a world without animals or trees.10. Look! The girl is putting a tree in a hto pl

29、ant it.II 句子：根據(jù)漢語提示，補(bǔ)全句子。每空一詞。trees.11. 大多數(shù)水果來自樹木。 Most of the fruits_12. 那個男孩正在四處張望。 That boy13. 實(shí)際上，多年以前這個地方被樹覆蓋著。,this placewascoveredwith treesmanyyearsago.14. 盡管這座轎是木制的，但它依然很牢固。T h o u g h t h i s b ri dge wo o d , its still verystrong15那些村民們正盡力地保護(hù)著那個小森林。to protect that small forest.A)從下面每小題的A、

30、B、C、D四個選項中選出可以替代劃線部分的最佳選項。 (Thosevillagers are)16. As students,our major task(任務(wù))is to study hard.A. busy B. great C. interesting D. important) 17. Treescan producelots of useful thingsfor us.A. make B. find C.buy D. watch) 18.Computersandmobile phonesmakeourlives moreconvenient.A. easier B. richer

31、C.moreexciting D. moreinteresting )19.Thechildrenarediscussingwhattodotohelpanimals.A. listening to B.looking at C. thinking of D. talking about ) 20.Thetall mountainsarecoveredwith millions of trees.B)從下面每小題的A、B、C、D四個選項中選出可以填入空白處的最佳選項。 (A. several B. afew C.alotD. somany) 21. - How do treeshelpus?D

32、o you know?- Forexample,theycankeepaircoolclean.A. an;butB. an;and C./; butD. /; and) 22. - Id like somethingabouttrees.Canyou tell me?- Sure.They ca n h elp i n manyways.A. toknow; we B. to know; us C. know; we D. know; us) 23. - Why dotreeshaveverylong roots?- Becausetherootstakeenoughwaterfor the

33、m.A. in; livingB. in; tolive C. out;livingD. out;tolive) 24. - do we havetosavetrees?- Becausetheyarebirdsandanimals.A. Why;hometo B.Why;thehometo C.How:hometo D. How;thehometo )25. - Thiskind of new carcan producelittle gasesanditischeap.- Soundsgood.Ill think aboutwhenit.A. useful;buying B. useful

34、;tobuy C.harmful;buying D.harmful;tobuy) 26. - Wow! T h e rea lot of newdesksin thehouse.-Yeah.And they smellbecausethey arewooden (木制的).A. is;niceB. is;nicely C.are;niceD. are;nicely) 27. - I think drinking too muchcola ishealth.- Iagree.Sowhatkindofdrinkcankeepus.A. goodfor, health B. badfor; heal

35、th C.goodfor; healthy D. badfor; healthy) 28. - Look! Theold womanabig bag.Shemustbetired.- I think so.Letsprovide hersomehelp.A. carries;for B. carries,with C. iscarrying; for D. is carrying; with()29. - What a nice hill! Thereare-Thats becausepe ople have neverst opped A. thousandof; planting C. t

36、housandsof; planting()30. - Look! The farmerstreeson it.here.B. thousandof; to plantD. thousandsof; to plant down trees now.-.Why not stop them doing that?A. cut; SoundsgreatB. cut; Im notsureIII .完形填空。There was a small village n ear the mountain. There were a lot of trees in the mountain. People in

37、 the31always got someth ing from it, such as ani mals and trees. Whenthey wan ted to32a house, they cut dow n the trees. And they also killed the an imalsfor33. Trees were very34in their daily life. They made tables, chairs35beds by cutt ing dow n the trees. In additi on, whe n they36meals, they sti

38、ll used some trees for wood. However, they only cut dow n trees but37plan tednew trees. So the trees were less and less; the ani mals were beco ming38as well.One summer, it rained39in the village. The rain lasted for about a week. The soiland the stones on the mountain fell down and soon40the whole

39、village. Theyfin ally knew they could nt only cut dow n trees but also n eeded to p rotect them.( ( ( ( ( ( ( ( ( ()31. A. riverB. mountain C. village)32. A. buildB. makeC. pai nt)33. A. vegetables B. clothes C. fruitB. successful C. beautiful D. useful B. andB. boughtB. alwaysB. killi ngB. hardly)3

40、4. A. careful)35. A. with)36. A. ate)37. A. n ever)38. A. cook ing)39. A. fully)40. A. turnedB. covered C. tookD. cityD. leaveD. meatC. but D. soC. cooked D. washedC. ofte nD. everC. dyi ng D. lyi ngC. heavily D. healthilyD. PutC. arecutting; It doesntmatterD. are cutting; Thats too badIV .完形填空。(10分

41、)A little boy loved top lay aroun da tall appi e treeevery day. Later, whe n he grew u p, he no longer p layed there.Oneday,the boy cameand helooked _31_. When thetreeknew the boy wanted some toys, sheaskedthe boy to pick all her_32_to sell. So the boy did it and left.Another day, the boy turned int

42、o a man and got back, Come and play with _33_! the tree. wasexcited and said._34_, I have to build a houseto live in, thema n said.You can _35_offmy branchesto build your house. So the man did it and left _36_.One hot summer day,the man came.When the appletreeknew that the man neededa boat to go sai

43、ling, shelet him _37_ hertrunk(樹干).After many years,the man cameagain. Sorry, my boy. But the_38_thing left is my dyi ng roots, the tree said. I just needa placeto rest_39_rm old an d tired after all theseyear s, the man said.“Come!_40_treerootsarethebestplaceto rest,themansatdownandthetreesmiled wi

44、th tears.() 31.A. gladB. sadC. excitedD. tired() 32.A. rootsB. leaves C. applesD. branc() 33.A. meB. youC.himD. her() 34.A. YesB. OKC.GreatD. No() 35.A. takeB. cutC. getD. fall() 36.A. slowlyB. easilyC. sadlyD. happily() 37.A. bringB. takeC. carryD. catch() 38.A. firstB. onlyC. goodD. bad() 39.A. so

45、B. butC.thoughD. becaus() 40.A. OldB. NewC. LongD. ShortV閱讀理解。Trees are important andthey canhelp us in many ways. However, someof them arein dangerand needto be taken care of asmuchaspossible.Therearesomewaystosavetrees.Use paperwisely. We can savetreesby using paperin a right way. What can we do?

46、Use both sidesof paperwhen doing homework. Borrow books to readwhen you needntbuy them. Never throw old books away, but be kind to donatethem to otherswho needthem. In place of papertowels, use cloth towels.Plant trees.To savetrees,its a greatidea to plant them. Spring is the best seasonto plant tre

47、es.Ifeveryone aroundus doesit, millions of treeswill. appearandmake our world become greenand beautiful.Tellpeopletounderstandtheimportanceoftreesandhelpsavetrees,Trytowrite letters togovernmentofficial (官員)andpersuade(勸)them to useaslittle paperastheycan.) 41.How manywaysaretheretousepaperwisely?A.

48、 Two, B. Three. C. Four.D. Five.)42.Whatcanwedoif wewant to savetrees?A. Planttrees.B. Stopusingtowels.C.Workwith thegovernment. D. Neverdoanyhomework) 43.Whatdoestheunderlinedworddonatemean?A. lead B. sell C.throw D. give) 44.Which ofthefollowing is TRUE?A. All treesontheEartharein danger. B. Trees

49、can make our world beautiful.C. To savetrees,neverbuy books. D. Mostpeoplecantunderstandtrees.) 45.Thepassagemainly wants to tell us.VIA. why to savetrees B. how tosavetrees C.wheretofind trees D. whento planttrees 用所給單詞的適當(dāng)形式完成句子。46. What a tall tree! It has long (branch) and thick leaves.47.In big

50、cities, air (pollute) is becoming worse than before.48. We usetrees to do a lot of useful things in our(life).49. He left without (say) any words.(live) in.50. Treescan provide better places for animals and birds51. Treesarelike (fight). They cankeepair cool andclean.52. Look! The boys are (lie) on

51、the beachand enjoying the sun.53. The phoneis (ring). Pleaseanswer it now.54. Its a fine day about (dig) holes by the lake to plant trees?55. You canimprove (提高) your English by (join) an English club.VII 書面表達(dá)。( 15分)請你根據(jù)下面的內(nèi)容提示，以The usesof trees為題，寫一篇關(guān)于樹的用途的文章。60詞以上，可以適當(dāng)發(fā)揮。 (開頭已經(jīng)給出，不計入總詞數(shù)) 提示： 1樹可以為

52、我們提供很多有用的東西，如水果，藥品，木材等； 2樹為人類提供氧氣，凈化空氣，美化環(huán)境，有利于生態(tài)環(huán)境的保護(hù)； 3樹可以為動物和鳥類提供家園和足夠的食物，保持生態(tài)平衡(the balanceof nature)；4樹能夠、防止水土流失和減少土地變成沙漠(desert)。The uses of trees課外閱讀：A mon th ago, the Gree ns went along the coast and fin ally got to Dayt ona beach代 托纟內(nèi)海灘) to spend their holiday. It was 200 miles away from th

53、eir home in Florida. They took their pet cat with them. The cat got frighte ned because of some no ise duri ng the holiday. Then it ran away. The Gree ns looked for their pet for a long time, but they did nt find it. They had to leave for home. In fact, the cat traveled for a long time and got back to Florida after it was lost.