7B--UNIT4滬教牛津版七年級下冊教案

1、7B Unit 4 save the trees.Date:_ 2013重點單詞Save節(jié)約，節(jié)省pi ne n.松樹discuss v討論，談?wù)揃ranch n.樹枝，分歧root n.根，根源fight v.與戰(zhàn)斗Against反對，違反example例子harmful有害的gas氣體，毒氣produce n.農(nóng)產(chǎn)品oxyge n n.氧氣major主要的convenient adj.方便的furniture家具imagine想象，想至Udisease n.疾病digv.挖Hole n.洞carry拿，搬運container n.容器必背短語：take in吸收come from來自for

2、 example例女口in fact實際上，事實上look around四周環(huán)顧(be) made of由 組成millions of數(shù)以百萬的(be) good for對 有害仔細講解：1f I plant this seed in the ground,will it become a pear tree,Hi? (page43)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c a n、m a y、m u s t） 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

3、。2. They help fight against pollution.（page44）Fight vi.與.斗爭，常與介詞against或with連用。女口：They fought against the enemy fiercely擴展：fight vt.戰(zhàn)斗，反對，可直接跟賓語。女口：They fought their enemies bravely.他們勇敢殺敵擴展：against prep.意為，違背，違抗；緊靠，防備” 。Be against反對，be for贊同 女口：We take outumbrella just against a rainy day.我們帶上雨傘以防雨

4、天。3. They take in harmful gases from the air and produce oxygen for us to breathe.（page45）harmful adj.有害的；harm n. vt.損害；傷害；危害;harmless adj.無害的，不致傷的.女口：Itharmful to your eyes to read in the dark.No harm would come to duce vt.產(chǎn)生，生產(chǎn)。也可以作為不可數(shù)名詞，意為：產(chǎn)品，農(nóng)產(chǎn)品。produce不可數(shù)n.農(nóng)產(chǎn)品或“自然產(chǎn)品”的總稱，The farmers broug

5、ht their produce to town early each Saturday morni duct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所生 的東西或發(fā)源于其它事物的東西Mach in ery, cars, ships are all in duct 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 production of small cars.4.A lot of the furniture is made of wood.

6、(page45)Furniture不可數(shù)名詞，家具。a set of furniture套家具;一件家具a piece of furniture。成品+be made in+地點產(chǎn)于某地原料+be made in to+成品被制成成品+be made of+原料（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 pia no is made in Beiji ng.The birthday cake is made by my mother.Wine is made from grapes.The bike is

7、 made in Chi na.of,物質(zhì)變化是from)5. I canimagine a world without trees.(page45)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)想與事實相反的東西，指錯We can hardly imagi ne life without water.誤的猜想；也可以表示猜想的東我們簡直不敢想象沒有水的生活。西沒有確定性，只是一種印象。guess缺之任何一句或資料而憑主觀Open your eyes,and guess who has the印象的猜想pen?6.However,（page

8、48）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7.She can skate at a very high speed because she practises a lot.1Practise vt.

9、訓(xùn)練，練習(xí)。賓語可接名詞，代詞，動名詞。女口：Its very important to practise listening.練習(xí)聽力是非常重要的。2Practise vi.女口：Don t forget to practise after class.課后別忘了練習(xí)。3practise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)。Practice makes perfect.是一句諺語，意思是熟能生巧”。8.But the speaker did not_stop speaking until twenty past twelve.（page52）Not.until意

10、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 wonsee 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。女口：He waits the children are asleep.I shall stay here until twelve o clock.The table is made of wood.Grapes are made into wine.(記憶順口溜：物質(zhì)不變用9.Ano ther指三者或三者以上中的“另一個”I dont likehis o

11、ne. Please show meano 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 other一個另一個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 theothers will stay at home.10.辨

12、析Carry,take,bringcarry搬，扛不論移動的方向The mother carries her baby in her arms。bring帶來，帶走以說話人為中心， 把某物帶到說話人身邊They re going to bring some gifts for us onChristmas.take以說話人為中心，把某物帶到遠處Please take these books to the library for me.11t covers five and a half million square kilometers of the Amazon Basin and spre

13、ads acrossnine countries.(page54)(1Cover v.覆蓋，遮蓋；covewith用把蓋上；be covered with 被.覆蓋著。如: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.(2)區(qū)另U：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介詞。穿過，通過。動作是立體空間進行

14、，穿過沙漠，森林，窗戶over動詞，則是對于位置的高低而言，強調(diào)翻越穿越高的障礙物，如籬笆，柵欄，山脈12.Many living things lose their homes because of deforestation.(page54) 許多生物因為森林砍伐失去家園。livi ngn.生物all livi ng thin gs所有生物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 still alive/livi ng.Livelaiv“活的”“有生命的”“活牛生的”， 主要

15、用來說鳥或其他動物a live fish一條活魚；a live tiger一只活老虎實況的、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 number of kinds of animals, birds, insects and trees in the world isdecreasing.結(jié)果，世界上動物、鳥類、昆蟲和樹的種類的數(shù)目正在減少。(page54)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)，T

16、he nu mber of the stude nts in our classis 45.a nu mber of大量，許多=ma ny，后接復(fù)數(shù)名詞， 謂語動詞要用復(fù)數(shù)A number ofstudents are playingfootball.14.Tea is the most popular drink in the world besides water.(page55)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”；Besides his wife,his daughter also went to see him.except除了之外（

17、沒有）I go to school every day except but Sun day.相當(dāng)于“減去”；but介詞，除了。只能和不定代 詞女口nothing,all,anything,no one,anyone等連用。Nobody knows the truth but Tom.語法：現(xiàn)在進行時、教材經(jīng)典句子:1. The children are playing in the park。2. We are stay ing at Peterhouse at the mome nt。二、 現(xiàn)在進行時：一般表示此刻正在進行的動作，也表示目前階段一直進行的動作。三、 用法：1.現(xiàn)在進行時一般

18、表示此刻正在進行的動作，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)在進行時表示目前階段一直進行的動作，但是說話時不一定正在發(fā)生，常和these days, this week，at present” 等連用。女口：Is Jame work ing hard this term？1.一些表示狀態(tài)和意愿的動詞，女口be,like,want,kown,think,have等，不能用于現(xiàn)在進行時態(tài)。女口：I want 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)在進行時 表示將要發(fā)生的動作，這些動詞可以與“tomorrow，next week”等表示將來的時間狀語連用。3.現(xiàn)在進行時與always，often等詞連用，也可