九年級英語Unit3 The Great Lakes教案 新課標 人教版

九年級英語Unit3 The Great Lakes教案 新課標 人教版學習目標：一、詞匯1. on Lake Superior 在蘇必利爾湖邊2. the Great Lakes 五大湖3. at one time 曾經(jīng)4. set off 出發(fā)；啟程5. catch up with 趕上6. pay attention to 注意7. fresh water 淡水8. in the Ice Age 在冰河時代9. warm up（使）變暖10. ever since 自從那時起一直11. clean up 清理干凈12. make healthy 使健康13. dry up 干涸15. die out 滅絕16. reach over 越過某人拿某物17. spill all over sb 灑了某人一身18. break open 破開；裂開19. find a solution to 找到的解決方法20. a large bag of popcorn 一大袋爆米花二、日常用語1. Where did you say you were born?2. I lived on Lake Superior.3. I swam as far as 2 kilometers at one time.4. You can swim in the 800-metre race.5. Maybe I will e and swim on your team.6. The ship had set off7. look up the word in a dictionary8. along the shores of the Lakes9. put the waste into the Lakes10. ask the government for a special program11. Environmental Research Laboratory12. I reached over and grabbed some.13. There was no reply.三、知識講解1. Its so big that when you sail on it , you cant see theland.它那么大，以至于當你在上面航行時，你看不見陸地。區(qū)分so that與so that的不同：a. so that起連詞的作用，意思是“以便,為的是”。He unlocked the bike so that he can use it at any time.他沒有鎖車,為的是隨時都能用.I put on a red coat so that he could see me easily.我穿了一件紅外套以便他能很容易地看見我。b. sothat的意思是“如此,以至于”。The weather is so cold that they had to stay at home.天氣如此冷，以至于他們不得不呆在家里。The coat is so expensive that I dont want to buy it.這件外套太貴，我不想買2. When I lived in Michigan . I swam as far as 2 kilometresat one time.當我住在密歇根的時候，我曾經(jīng)游過遠至兩千米。a. as far as有兩種意思，一是表示“遠至，直到所提到之處為止”The little boy couldnt run as far as the end of thatbridge.這個小孩不能跑到橋頭那兒。b. 還有一種意思是表示“就而言”As far as I know, he has gone to town.就我所知，他到鎮(zhèn)子上去了。at one time是過去時的時間狀語，意思是“曾經(jīng)、往昔”。At one time , he run 20 kilometers. 曾經(jīng)我跑過20公里。3. The factories would put their waste into the Lakes.工廠把它們的垃圾扔進湖里。would在這個句子里并不是will的過去式，它表示的是過去的習慣和傾向。比較would和used to：a. Would與used to都可用來表示過去經(jīng)常性或習慣性的動作，常?？梢該Q用。如：When we were boys we used to/would go swimming everysummer.小時候，每到夏天我們都要去游泳。He used to/would spend every penny he earned on books過去，他通常把掙來的錢全花在買書上。b. would與used to的區(qū)別：used to表示過去經(jīng)常性或習慣性的動作或狀態(tài)現(xiàn)在已經(jīng)結束would則表示有可能再發(fā)生。如：People used to believe that the earth was flat過去，人們總以為地球是扁平的。（現(xiàn)在已不再這樣認為）He would go to the park as soon as he was free過去，他一有空就去公園。（現(xiàn)在有可能再去）4. I waited and waited until finally a bright scene came on.我等著，等著，直到最后一個明亮的畫面出現(xiàn)了。e on除了“出現(xiàn)”的意思，還有其他的多種含義：Night came on , The Christmas trees lighted up.夜幕降臨，圣誕樹都亮了起來。（出現(xiàn)）All the plants in the garden are ing on nicely.花園里所有的植物生長得都很好。（生長）Youd better go now. I will e on later.你最好現(xiàn)在走吧。我一會兒跟著。（跟隨）Hows your English ing on ? 你的英語進展如何？（進展）He is ing on in the next scene. 他將下一個出場。（出場）What time does the news e on ? 這個消息什么時間播放（上演、播放）e on ! We are going to be late. 快上！我們要遲到了。（快點、加油）5. To make a loud noise usually because of anger or fear .因生氣或害怕發(fā)出大的噪音。注意區(qū)分so that與sothat：a是連詞，引導原因狀語從句。I didnt buy the tapes because I didnt have enough money.我沒有買那些磁帶，因為我錢不夠。He wrote to his friends very often because he missed them.他頻繁的給他的朋友們寫信，因為他思念他們。b. because of是一個介詞短語，后面常接名詞或代詞。We beat them because of good luck.我們由于運氣好而打敗了他們。I lost my watch because of carelessness.我由于粗心而丟了手表。語法：復習過去完成時的構成。過去完成時由”助動詞had（用于各種人稱和數(shù)）+過去分詞”構成。過去完成時在肯定、否定、一般疑問句和簡略答語等四種結構中的形式如下：同步練習：一、填空練習用because或because of填空。1. They changed their plan _ the bad weather.2. I got angry _ he cheated me.3. He was beaten by his father _ his wrong-doings.4. He didnt e _ his illness.5. We enjoyed the story _ it was really touching.二、完型填空Swimming is very popular in summer. People like swimming in summer because water makes them (1) cool. If you like swimming but swim in a (2) place, it may not be safe. These years, more than ten people (3) while they were enjoying themselves in the water and (4) of them were students. But some people are (5) not careful in swimming. They often think they swim so (6) that nothing can happen to them in water. Summer is here again. If you go swimming in summer, don't forget (7) better swimmershave died in water. They died because they were not careful, not because they (8) swim. So don't get into water when you are alone. (9) there is a "No Swimming" sign, don't getinto water, (10) . If you remember these, swimming will be safer. (1) A. felt B. feel C. feeling D. to feel(2) A. difficult B. small C. right D. wrong(3) A. died B. die C. have died D. will die(4) A. much B. most C. lot D. more(5) A. yet B. already C. still D. even(6) A. fast B. often C. well D. hard(7) A. what B. that C. which D. who(8) A. couldn't B. wouldn't C. needn't D. mustn't(9) A. Because B. Thought C. Whether D. If(10) A. either B. nor C. also D. too三、閱讀理解Thirty years ago, Lake Ponkapog in Hartwell, New Jersey, wasfull of life. Many birds and animals lived beside the water,which was full of fish. Now there are few birds, animals, andfish. The lake water is polluted (污染的). It is in a colour of dirty brown, and it is filled with strange plants.How did this happen? First, we must think about how water gets into Lake Ponkapog. When it rains, water es into the lake from all around. In the past, there were forests all around Lake Ponkapog, so the rainwater was clean.Now there are many homes around the lake. People often use chemicals (化學品) in their gardens. They use other chemicals inside their housed for cleaning or killing insects (昆蟲).There are also many businesses. Businesses use chemicals in their machines or shops. Other chemicals fall onto the ground from cars or trucks. When it rains, the rainwater picks up all the chemicals from homes and businesses and then carries them into the lake. They pollute the water and kill the animals.Boats on the lake are also a problem. Lake Ponkapog is a popular place for motorboats. But oil and gas (油和汽) from boats often get into the lake. So more bad chemicals go into the water this way.People in Hartwell are worried. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground. And the mustnt use motorboats any more on the lake. All these may change peoples lives.Only then can Lake Ponkapog be a beautiful, clean lake again.1) In the past, the water in Lake Ponkapog was made clean by .A. forests B. rain C. birds D. fish2）Chemicals from homes and businesses .A. are always clean B. can help the animalsC. are good for the lake D. get into the rainwater3）Cleaner rainwater will mean .A. more boats on the lake B. more dirty things in the lakeC. a cleaner lake D. a dirtier lake4）To save Lake Ponkapog, people need to .A. be more careful about chemicalsB. use less waterC. grow fewer plants in the gardensD. use more motorboats on the lake5) The passage is about .A. boats on Lake PonkapogB. why the water is dirty in Lake PonkapogC. clean rainwaterD. dirty lakes參考答案一、1. because of 2. because 3. because of 4. because of 5.because二、第(1)題make后接不帶to的feel。第(3)題從句是were enjoying，故主句選過去式died。第(7)題選引導賓語從句的that。第(8)題從語義和結構上判定couldn't。第(9)題是條件狀語從句，故選if。第(10)題注意noteither的用法。答案：(1)B (2)D (3)A (4)B (5)C (6)C (7)B (8)A (9)D (10)A三、1)選A。文章第二段最后一句話就能直接找到答案。2)選D。文中第三自然段倒數(shù)第二行“the rain water picks up”。3)選C。很顯然干凈的雨水使湖泊干凈。4)選A。挽救Ponkapog的關鍵當然在于少用污染。5)選B。全文總觀可知，主要描述Ponkapog 為什么變臟。