人教版高一英語必修1Unit4全套課件

1、How many natural disasters do you know,typhoon,Pacific typhoon refers to tropical cyclones forming in the northwestern Pacific Ocean. Other tropical cyclones include hurricanes that form over the Atlantic Ocean, Caribbean Sea, the Gulf of Mexico, or the Pacific Ocean north of the equator and east of

2、 the Date Line. The basin is demarcated within the Pacific Ocean from Asia, north of the equator, and west of the international date line. Storms from the Eastern and Central Pacific crossing the date line are re-designated as typhoons. Typhoon paths follow three general directions: -Straight: A gen

3、eral westward path affects the Philippines, southern China, and Vietnam. -Recurving: Storms recurving affect eastern China, Korea, and Japan. -Northward: From point of origin, the storm follows a northerly direction, only affecting small islands,Introduction of Typhoon,How many natural disasters do

4、you know,thunderstorm,How many natural disasters do you know,flood,Flood happens when an area of land, usually low-lying, is covered with water. The worst floods usually occur when a river overflows its banks. Floods happen when soil and vegetation cannot absorb all the water ; water then runs off t

5、he land in quantities that cannot be carried in stream channels or kept in natural ponds or man-made reservoirs. Periodic floods occur naturally on many rivers, forming an area known as the flood plain. These river floods usually result from heavy rain, sometimes combined with melting snow, which ca

6、uses the rivers to overflow their banks. Coastal areas are occasionally flooded by high tides caused by severe winds on ocean surfaces, or by tidal waves caused by undersea earthquakes. There are often many causes for a flood,Introduction of Flood,How many natural disasters do you know,volcano,How m

7、any natural disasters do you know,fire,How many natural disasters do you know,tsunami,A tsunami is a series of waves generated when water in a lake or the sea is rapidly displaced on a massive scale. Earthquakes, landslides, volcanic eruptions and large meteorite impacts all have the potential to ge

8、nerate a tsunami. The effects of a tsunami can range from unnoticeable to devastating. The term tsunami comes from the Japanese language meaning harbor and wave. Although in Japanese tsunami is used for both the singular and plural, in English tsunamis is well-established as the plural. The term was

9、 created by fishermen who returned to port to find the area surrounding the harbor devastated, although they had not been aware of any wave in the open water. A tsunami is not a sub-surface event in the deep ocean; it simply has a much smaller amplitude (wave heights) offshore, and a very long wavel

10、ength (often hundreds of kilometers long), which is why they generally pass unnoticed at sea, forming only a passing hump in the ocean,Introduction of Tsunami,How many natural disasters do you know,sand storms,unit 4,Earthquackes,Basic knowledge about earthquake How to protect oneself and help other

11、s in disasters,Knowledge Goals,Topic,Words and Expressions,imagine shake rise earthquake well pipe nation canal stream dirt ruin suffering extreme injure destroy brick dam frighten freighting congratulation judge express cyclist Useless shock rescue,Words,1. have time to do 有時間做某事 2. happen to do 碰巧

12、做某事 3. shake hands with sb 握手 4. burst into tears/ laughter 突然哭/笑起來 5. in ruins 成為廢墟 6. cut across 穿過、橫穿 7. blow away 吹走、刮走 8. fall down 倒塌 9. rescue workers 救援人員 10. be pleased to do 樂意做某事 11. judging.from 根據(jù)來判斷,Expressions,Talking about past experiences Expressing thanks,Functional Items,Grammar,L

13、earn to use attributive clause: (以that, which, who 和whose 為引導(dǎo),Enable to write a small article to describe an event. Develop the ability to get the message from different ways, just like the video. Then try your best to use the message in your article,Have a scientific attitude towards disaster, and

14、grasp more knowledge about how to deal with it,Ability Goals,Emotion Goals,The disaster and how to deal with it. The usage of attributive clause Try to improve the ability of talking about past experiences by describing the big event during a disaster,Important and Difficult Points,Important Points,

15、Try to know the ways to rescue in a disaster. 2. Try to develop the ability of speaking,Difficult Points,Compare the two pictures, then have a discussion about the earthquakes harm to the people with your partner,Todays Tang Shan,After the earthquake,Today s Tang Shan,After the earthquake,Today s Ta

16、ng Shan,After the earthquake,Today s Tang Shan,After the earthquake,Compare the two pictures, then have a discussion about the earthquakes harm to the people with your partner,California,Major earthquake of the world Earthquakes have occurred on earths surface since times immemorial. Thousands and t

17、housands of earthquakes happen every year however, most of which go unnoticed as they are either to weak on the Richter scale or happen in remotest of the areas. Earthquakes cause disasters and cause both loss of lives and property. May 22, 1960 witnessed the worlds strongest earthquake in Valdicvia

18、, Chile. The earthquake with a magnitude of 9.5 on Richter scale caused 20,000 fatalities,The second strongest earthquake occurred on December 26, 2004 with a magnitude of 9.3 on Richter scale. Ocean floor of west Sumatra and Indonesia were the epicenter of this earthquake that caused over 300,000 c

19、ausalities. This earthquake caused the disastrous tsunami in the Indian Ocean. On March 27, 1964 Prince William Sound, Alaska faced the worlds third strongest earthquake. The earthquake measured 9.2 on Richter scale caused a great deal of damage in Anchorage. Kamchatka, 1952 having 9.0 magnitude and

20、 Off the Coast of Ecuador, 1906 having 8.8 magnitude, are the fourth and the fifth strongest earthquakes on the world till date,Talk about the latest earthquake in last year. As we know, Wenchuan earthquake as huge as Tangshan earthquake in 1976. What did you do when it happened? When you know so ma

21、ny people had died in the earthquake how did you feel? What should we change after the earthquake? Discuss with your classmates,1. Image your home begins to shake and you must leave it immediately. You have time to take only one thing. What will you take? Why? 2. What do you think will happen before

22、 an earthquake,1. Fast read the passage, then try to answer the following questions: (1) When did the earthquake begin? (2) How many people were killed or injured in the quake? (3) Who helped to rescue the people,2. Listen to the text,1) The chickens didnt eat because they were full. (2) One third o

23、f the people died or were injured during the earthquake. (3) Such a great number of people died because the quake happened while they were working. (4) All the hospitals had been destroyed. (5) Water was needed because dams and wells were useless,F,F,F,T,T,3. Read for the first time, then do the fol

24、lowing detail questions,Read for the third time, then try to divide the whole passage for several parts, and the main idea of them,4. Main idea of each paragraph and timeline,1) Before the earthquake Paragraph（1） Strange things began to happen, but no one took any notice of them. (2) During the eart

25、hquake Paragraph (s)（2 the well walls had deep _; A _ gas came out of them,rose,fell,cracks,smelly,Mice _ the fields looking for places to hide,ran out of,Fish _ their bowls and ponds,jumped out of,At about 3:00 am on July28, 1976,1. Bright lights _in the sky,appeared,2. The sound of planes could be

26、 _although there were no planes,heard,3. Some water _burst,pipes,During the earthquake, at 3:42 am on July 28,1976,1. Everything began to_,shake,2. Huge cracks _in the roads,appeared,3. Stem _from holes in the ground,burst,4. Rock _rivers of dirt,turned into,5. 75% buildings and 90% of homes were_,g

27、one,6. More than 400,000 people _or_,killed,injured,After the earthquake (July 28,1976,1. A second quack almost as _as the first one,strong,2. More _to buildings and rescuers,damage,Soon after the quack,The army_,2. Shelter _survivors,3. Water supplies _in,arrived,built for,brought,Earthquake Surviv

28、al Tips,Would you know what to do during a really big earthquake? Experts have looked into matter carefully. It may be worth you while to look over the following tips they have for us. If the ground begins shaking while you are driving, pull over and stay in your car. If you are in a building, try t

29、o get near a strong wall. The corner of the room or the space under a big,doorway is the safest. As soon as the quake is over, check the gas pipe in the building. Gas fires often result from earthquakes. These tips may prove to be lifesavers. We should, therefore, keep them in mind. Remember to alwa

30、ys hope for the best but prepare for the worst,If it has an earthquake when having classes, the students should listen to the teachers instruction, protect their heads and hide under the desks. If it has an earthquake when the students are in the sports ground, they can crouch on the spot and protec

31、t their heads with hands. Be sure to keep away with high building and dangerous objects. Dont go back to the classroom. Retreat in order after the earthquake,Escape in Public Places Listen to the command of the site workers. Dont be scared and dont rush towards the exits. Try to avoid crowds. Avoid

32、to be squeezed to the wall or barriers. At theaters and gyms: crouch down or slip under the chairs; avoid suspending lights and electric,fans; protect the head with schoolbags; after the earthquake, listen to the command of the workers, retreat in an organized way. In department stores, bookstores,

33、museums or subway: find firm counters, commodities (low furniture etc.) or a pillar or the corner of a wall to crouch down on the spot, protect the heads with hands or other objects,keep away from glass windows, glass counters or show counters; keep away from tall cupboards; keep away from advertise

34、ment boards and other suspending objects,explanations,Destroy Ruin Damage 的區(qū)別,Damage ：n.損害, 傷害 v.招致?lián)p害n.律 (用復(fù)數(shù))賠償金,Destroy ：vt.破壞, 毀壞, 消滅 v.消滅, 摧毀,destroy程度比damage重很多,Ruin: n. (pl.)廢墟,毀滅 v. 毀壞,破壞 vi. (使)破產(chǎn),毀滅 vt. 毀壞,毀滅,1. Damage, destroy, ruin主要用于無生命的事物， 而hurt, injure, spoil主要用于有生命的人或動物. 2. Damage 通常

35、表示事物的價值或功能部分受損， 如： the ship was damaged in the bottom. 那條船的底部被損壞. 3. Destroy, ruin均表示事物全部被毀，如： destroy all of the three enemy warships 把3艘敵艦全部殲滅,explanations,1. It seemed as if the world was at an end,1) as if 似乎，好像 = as though She spoke to me as if she knew me. 她和我說話的神情，好像她早就認(rèn)識我 似的。 (2) as if 在表語從句

36、中相當(dāng)于that: It seemed as if the meeting would never end. 會議看起來似乎沒完沒了,Language points,本文中as if 的用法就是第二種。 It seemed as if the world was at an end! = It seemed that the world was at an end! = The world seemed to be at an end,It seems that sb= sb seems to be/do看來; 好像,Language points,分?jǐn)?shù)的表示法,分子 分母,基數(shù)詞,序數(shù)詞,分

37、子大于一，分母用復(fù)數(shù),三分之一one- third,五分之三 three- fifths,2. One third of the nation felt it,Language points,Two thirds of the land is covered by forest,One fifth of the students in this class are girls,三分之二的地面為森林所覆蓋,這個班里五分之一的學(xué)生是女生,Language points,3. The army organized teams to dig out those who were trapped and

38、 to bury the dead,1) organize sb. to do sth.組織某人做某事,E.g. The teacher organized the students to have a discussion just now,Language points,The dog buried the bone in the ground. I buried myself in my studies. bury oneself in= be buried in 埋頭于;專心于,2) dig out 挖掘；發(fā)現(xiàn) (3) bury : A. to place in the ground

39、埋藏 B. to occupy (oneself) with deep concentration; absorb 專注于,Language points,Words,1. quake vi. 顫抖, (因害怕或寒冷而)發(fā)抖 She quaked with fright. 她嚇得發(fā)抖。 (地面)震動 Our house is quaking. 我們的房屋在震動,2. well adv. 好, 對, 滿意地; 友好地, 和藹地; 徹底地, 完全地 Do you eat well at school? 你在學(xué)校吃得好嗎? 夸獎地, 稱贊地 They speak well of him at sch

40、ool. 學(xué)校里的人都稱贊他。 有理由地, 恰當(dāng)?shù)?You did well to tell him. 你告訴了他, 做得對,adj. 健康的; 痊愈的 I dont think he is really a well man. 我認(rèn)為他并不是真正健康的人。 良好的; 正常的; 令人滿意的 All is not well in this country. 這個國家的情況不能令人滿意。 interj. (用于表示驚訝, 疑慮, 接受等) Well! Look at that amazing sight! 哦!看那迷人的景色！ n. 井, 水井 They dug another well in t

41、he village. 他們在村里又挖了一口井,3. pipe n. 管子, 管道 Water is brought into our houses through pipes. 水通過水管送到我們的屋子里。 煙斗 My pipe has gone out. 我煙斗的火熄滅了。 管樂器, 笛子 He is playing a tune on his pipe. 他在用笛子吹奏一支曲子,vt. 以管輸送 They piped oil yesterday. 昨天他們用管道輸送油。 傳送 Nearly all the shops have piped music. 差不多所有的商店都連續(xù)播放有線廣播

42、的音樂。 吹哨子下令(表示歡迎) The admiral was piped aboard. 海軍上將在歡迎他的哨子聲中登艦。 滾邊, 鑲花邊 He piped “Happy Birthday” on the cake. 他在蛋糕上鑲上了“生日快樂”的字樣,4. stream n. 小河, 溪流 Can you jump across the stream? 你能跳過這條小溪嗎? 流, 一股, 一串 A stream of people was going into the cinema. 一股人流走進(jìn)影院。 水流方向, 潮流 He hasnt the courage to go agains

43、t the stream of public opinion. 他沒有勇氣逆輿論潮流行事,按能力分的)班級 She is in the A stream in her middle school. 她中學(xué)時在A班。 vt. 招展 The flag of our country was streaming in the wind. 我們國家的旗幟在風(fēng)中飄動,5. burst vt. 爆發(fā), 突發(fā) His appearance on the platform was greeted with a burst of applause. 他一登上臺就博得了一陣熱烈的掌聲,Morphology,rain

44、 wind cloud snow sun health,rainy windy cloudy snowy sunny healthy,名詞,形容詞,wealth wind,windy wealthy,名詞,形容詞,Expressions,1. right away 立刻，馬上 Tell him that Im coming right away. 告訴他我就這來。 Are you leaving right away without visiting her? 你不拜訪她，馬上就走嗎？ 2. as if 好像，似乎 She sang as if inspired. 她好像靈感受到引發(fā)而唱起歌來

45、。 Why doesnt she buy me a drink? It isnt as if she had no money,她為什么不給我買一點(diǎn)飲料?好像她沒錢似的! 3. at an end 結(jié)束，終止 They wished the voyage at an end. 他們渴望航行結(jié)束。 Everything between them was at an end. 他們間一切都結(jié)束了。 4. in ruins 嚴(yán)重受損, 破敗不堪 The city lay in ruins after the earthquake. 地震之后, 這座城市成為一片廢墟。 The country was

46、laid in ruins. 這個國家處于毀滅狀態(tài),5. dig out 挖掘; 挖走 The workmen dug out a deep channel for the water. 工人們挖出一條深水溝。 The injured men have been dug out of the snow. 受傷人員從雪中被挖了出來。 找出來, 發(fā)掘 Why did you dig out all these old magazines? 你把這些舊雜志翻出來做什么? Quite a number of valuable details were dug out of libraries and

47、archives by the group of researchers,這組研究人員從圖書和檔案資料中查找出一批相當(dāng)有價值的詳細(xì)資料。 匆匆地離開 She didnt say where to go, just dug out. 她沒有講要到哪兒去, 只是匆匆地走了。 6. a number of 許多的 A number of new products have been successfully trial-produced. 許多新產(chǎn)品已試制成功。 A great number of problems have arisen. 出現(xiàn)了許多問題,Brainstorming,From th

48、e earthquake what would you think, find the word you learned from this unit. You can describe it from four aspects,定語從句的概念,定語從句,Structures,在復(fù)合句中,修飾某一名詞或代詞,用做定語的從句叫定語從句。被定語從句所修飾的詞叫先行詞;定語從句必須放在先行詞之后; 引導(dǎo)定語從句的關(guān)系代詞有who, whom, that, which, whose和關(guān)系副詞when, where, why,Usages,找出先行詞以及關(guān)系詞引導(dǎo)的句子 The foreigner wh

49、o visited our class yesterday is from Canada. A new master who will teach you German will come tomorrow. 把它們分成兩個句子 The foreigner is from Canada. The foreigner visited our class yesterday. A new master will come tomorrow. A new master will teach you German,關(guān)系代詞which, who, whom, that, whose,與關(guān)系副詞where

50、, when, why的區(qū)別: 關(guān)系代詞直接代替先行詞,關(guān)系副詞代替介詞短語. The factory _ I visit is big. The factory is big. I visit the factory. The factory _ I work is big. The factory is big. I work the factory,_,_,in,in the factory是介詞短語,表地點(diǎn),所以用where或者in which代替,which,where,in which,This is the reason _ he told me last night. This

51、 is the reason. He told me the reason last night. This is the reason _ he was late. This is the reason. He was late the reason,_,which,_,why,for,why =for which,定語從句概念歸納 1.定語從句中的主謂一致 關(guān)系代詞作定語從句的主語時,從句謂語動詞的人稱和數(shù)要與先行詞一致;先行詞代表一個句子作主語時,從句謂語用第三人稱單數(shù)形式. The building which _ (stand) near the river is our schoo

52、l,stands,1) 當(dāng)先行詞是anything, something, nothing, all, few, little, none, all 等不定代詞或被all, any, every, each, no, some等修飾時。 (2) 先行詞被the only, the very, the last修飾時。 (3) 先行詞被序數(shù)詞或形容詞最高級修飾時。 (4) 先行詞既有人又有物時。 He is the only person _ treats me as a friend here,that,2.下列情況用that 不用which,4. 分隔定語從句 有時為了句子的平衡,定語從句與

53、先行詞常被插入其他成分。 The day will come _ we shall celebrate Womens Day,when,3. 下列情況用which 不用that (1) 引導(dǎo)非限定性定語從句時。(有逗號隔開) (2) 在 “介詞+which/whom” 結(jié)構(gòu)中。 This is the market at _ I bought the baby carriage last Sunday,which,5. (the) one of 結(jié)構(gòu): one of +n.(pl.) 后跟定語從句時, 從句中的謂語動詞用復(fù)數(shù),但當(dāng)有the only修飾one of +pl.時,其后跟的定語從句

54、中的謂語動詞用單數(shù)。 He is the only one of the students who _ (have) been a winner of scholarship for three years,has,1. The fan which you want is on the desk. 2. The man who brought our textbooks here yesterday is in the next room. 3. The letter which I received yesterday is from my sister. 4. The play which

55、 we saw last night was wonderful,一、分解句子,Exercises,1. The fan is on the desk. You want the fan. 2. The man is in the next room The man brought a textbook here yesterday. 3. The letter is from my sister. The letter was received by me yesterday. 4. The play was wonderful. We saw the play last night,Ans

56、wers,1.The man _is talking to me is a friend of my fathers. 2.The school _is famous here has a long history. 3.I live in the house _windows face south. 4.He is the boy _ we are waiting for,that/who,that/which,whose,who/whom,二、用合適的關(guān)系代詞填空,Exercises,Proverbs,He who laughs last laughs best. 誰笑到最后誰笑得最好。

57、All is well that end well. 結(jié)局好，一切都好。 Friendship is like health, the value of which is seldom know until it is lost. 真正的友誼猶如健康的身體，失去時方知其可貴,1. invitation n. 邀請,invite v,a letter of invitation 一封邀請信,2. give a speech 作報(bào)告/演講,3. Office of the City Government市政府辦公室,4. be/feel proud of 對感到自豪 = feel/find/tak

58、e pride in,5. open a new park 開放新的公園,Some words and expressions,6. in honor of 向表示敬意; 為了紀(jì)念,7. as you know 如你所知,8. on that special day 在那個特殊的日子,9. write an article for 為寫文章,10. write an outline 寫提綱,11. disaster-hit areas 受災(zāi)區(qū),Some words and expressions,Listen to the conversation and answer the questio

59、ns on page 31,Listening,1. The man was sleeping downstairs when the earthquake happened. 2. Many huge buildings were shaking-bricks were falling. 3. A lot of people were buried under the ruins. 4. Some cows were killed in the fires. 5. He felt safer because he got away easily,F,T,T,F,F,When did the earthquake begin? What did the speaker do after he woke up? What did he see and h