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1、2020學(xué)年人教版英語精品資料 Unit 4 Wildlife protection學(xué)案 第一課時Introduction & Vocabulary 課前自主預(yù)習(xí)目標(biāo)方案 ●重點(diǎn)單詞 1. __________ n. 敵人 2. ___________ v. 保護(hù)區(qū) 3. __________ v. 打獵 4. ___________ adj. 野生的 5. __________ n. 保護(hù) 6. ___________ n. 和平 7. __

2、________v. 申請, 應(yīng)用 8. ___________ v. 建議,暗示 9. __________ v. 摩擦 10. ___________ v. 包含 11. _________ v. 影響 effect n. 影響 12. _________ n. 注意 1. enemy 2. reserve 3. hunt 4. wild 5. protection

3、6.peace 7. apply 8. suggest 9. rub 10.contain 11. affect 12. attention ●重點(diǎn)短語 1.____________ 形成 2.___________ 結(jié)果 ,因此 3.____________（動，植物物種）滅絕 4.___________ 處于危險中

4、 5.____________ 穿上衣服 6.____________“想，愿意” 7.____________ 注意 8.____________ 保護(hù)使不受……傷害 1. come into being 2. as a result 3. die out

5、 4. in danger of 5. get dressed 6. would like 7. pay more attention to 8. protect … from / against 課后自主反思與測評 Ⅰ.單詞拼寫 1. He went through the forest under the p_______ of

6、his dog. 2. The soldiers lined up for their daily i by their officers. 3. Ancient people h______ for food. 4. I invited her to dinner but she did not r_______. 5. Orange juice c_________ vitamin c. 6. Geography _______ (影響)people’s ways of living. 7. In today’s economy, you need to have

7、 specific skills to ____________(成功)。 8. Thanks so much for your help. I really____________(感激)it. 9.He would never __________(傷害)anyone. 10.Tiger is a _______ (兇猛的)animal. 單詞拼寫答案： protection/inspection /hunted/respond/contains/affects/succeed/appreciate/harm/fierce Ⅱ. 完成句子 1. Do you know ho

8、w did the world _______ ______ __________ ?(形成) 2. In winter, you should cover something to _________ the plants ______(保護(hù)…免受傷害) the cold. 3. He is _____ great ______.(處于危險中) 4. Every should ____ _______ ________ ____(更多關(guān)注)protecting the endangered animals. 5. _______ ____(根據(jù)…所說)Tom, an unknown

9、 object appeared in the sky this morning. 6. My family lives _______ ________(和睦地). 7. The wild population of kolas is in danger of ________ _______.(滅絕) 8. She didn’t _______ _____(回答)my question. 9. The storm _____ a bad _______ _____(對…影響) the crops. 10. The output of wheat ______ _____(減少

10、了)12％because of the bad weather. 完成句子答案 ⑴come into being ⑵ protect...from ⑶ in…danger ⑷ pay more attention to ⑸ According to ⑹in peace ⑺ dying out ⑻respond to ⑼ had…effect on ⑽decreased by Ⅲ.同義句轉(zhuǎn)換 根據(jù)A句句義，用本單元所學(xué)的句型或短語完成B 句,使其句義相同或相近。 1. A: We missed the train as a result of the heavy rai

11、n. B: It rained heavily. ______ _______ ______, we missed the train. 2. A: Do you know the girl who is singing in the next room? B: Do you know the girl _________ in the next room? 3. A: Protect our earth, or else it will be no longer fit for us to live on. B: Protect our earth, or else

12、 it ________ be fit for us to live on ______ ________. 4. A: She was seriously injured. As a result, she died. B: She died _________ _________ ________ _______ her serious injuries.. 5. A: The People’s Republic of China came into being on October 1, 1949. B: The People’s Republic of China ___

13、____ _______ on October 1, 1949. 答案：1. As a result 2. singing 3. won’t, any longer 4. as a result of 5. was founded IV.句子翻譯 6. People’s lives in Iraq are always ________ ________ (危險), so they hope they could live ______ _______(平平安安). 7. Our school ________ _______ _______ (建校) in 1957.

14、8. He will be here ______ _______ (肯定) within an hour. 9. May I use your computer? Mine _______ _______ ________ (在修理). 10. ________ _______ _____ (由他帶) the way, we had no trouble in finding the old man’s house. 答案： 6. in danger; in peace 7. came into being 8. for sure 9. is being repaired

15、10. With him leading 第二課時Warming-up, Pre-reading & Reading 課前自主預(yù)習(xí)案 Step I.Translatethephrases:（結(jié)合課文譯出下面短語并背誦） 1. as a result 結(jié)果 2. die out 滅亡；逐漸消失 3. in…danger在危險中 4. have…effect on 對…有影響 5. pay more attention to注意 6. come into being形成；產(chǎn)生 7. p

16、rotect … from / against保護(hù)…不受…的(危害）8. in peace和平地；安祥地 9. tell from從…分辨、判斷 10. belong to屬于 11.be concerned about關(guān)心,在乎 12. hurry to do sth. 匆忙去做… 13. dress sb. 給…穿衣服 14. rise升起來,上漲 be gone/ missing消失,不見 16. turn around轉(zhuǎn)身 17. take one’s p

17、icture給…照相 18. apply to sb. for sth. 向…申請… 19. apply to do sth. 申請去做某事 20. be/ get ready to do準(zhǔn)備… 21. thick rain forests茂密的雨林 22. for sure 確切地,肯定地 Step II.Translatethesentences（先在課文中找出下面句子并譯成漢語/背誦） 1. Please take me to a distant land ____I can find the animal ____gave fur

18、 to make this sweater. 【分析】where, that 引導(dǎo)定語從句，分別修飾land 和animal。 請帶我去那個我可以找到供給皮毛去制造這件毛衣的動物的一個遙遠(yuǎn)的地方。 2. I wonder ______ is being done to help you. 【分析】該句是what引導(dǎo)的賓語從句，做wonder的賓語；is being done是進(jìn)行時態(tài)的被動語態(tài)。(在文中找出有此用法的其他句子) 我想知道什么可以被做來幫助你們。 3. They allowed tourists to hunt only a certain number of ani

19、mals if they paid the farmers. 他們允許游客給錢農(nóng)民然后可以去獵殺確定數(shù)量的動物。 4. It shows the importance of wildlife protection, but I’d like to help ____ the WWF suggests. 它展示了野生動物保護(hù)的重要性，不過我喜歡去幫助像WWF這樣的建議。 5. You should pay more attention to the rain forest ______I live and appreciate _____the animals live together

20、. 【分析】where 引導(dǎo)定語從句，修飾rain forest；how 引導(dǎo)的賓語從句做appreciate 的賓語。 你應(yīng)該更加注意那些我居住的熱帶雨林并好好鑒賞動物們?nèi)绾尉幼≡谝积R。 6. But what an experience! 多棒的經(jīng)歷呀。 課堂閱讀學(xué)案 Step I. Warming-up Discuss some endangered animals: panda tiger elephant. They are endangered animals. Step II. Pre-reading 1. What other endangered anima

21、ls do you know of? 2. What is being done to protect them? Step Ⅲ. Reading 【Self-directed study】 Read the text and find the right answers to following questions. Task 1. Fast reading Summarize the main idea of the text. It mainly talks about ____________________________

22、___________. Task 2.Careful reading 1. Read the passage and answer the following questions ①Who is the main character in the story? ②What animals has she seen and talked with? 2. Read the passage again and put these sentences in the right o

23、rder. ( )Daisy found her being watched by an elephant. ( )Daisy woke up and found a flying carpet. ( )As Daisy landed, things began to disappear including the monkey. ( )Daisy and her flying carpet were in a thick rainforest. ( )Daisy looked at an antelope which was looking sad. Task 1.

24、 Daisy’s magical experience about wildlife protection. Task 2. 1. (1)Daisy (2)antelope、elephant、monkey 2. (3)(1)(5)(4)(2) Task 3. Discussion: Imagine you work for WWF. Discuss in groups: ① How can the animals be protected from more people coming into the park? ② What should be done to punish

25、people who do harm to the animals? Share your suggests with other students and give a report in class. 第三課時Language Points Step I.詞匯探究 1. decrease v. 降低，減少，(使)變小，(使)變少 n.減少，降低 on the decrease 在減少中 decrease to 減少到 decrease by 減少了 decreasing adj. 減少中的，在遞減的 【鏈接】反義詞 increase increase to…增加

26、到… increase by…增加了… 2. loss n. 損失；遺失；喪失；敗北 lose vt. 丟失，損失 lost丟失的 He suffered a loss of 10,000 dollars on the business. 那筆生意中，他損失了10 000美元。 Our team has already had 3 losses.我們隊(duì)已經(jīng)敗了三場了。 at a loss adj. 困惑，不知所措，adv. 虧本地 例句： She was at a loss for an answer. 她不知如何回答才好。 that’s your/their loss

27、口語 那是你們的/他們的損失 Well, if he doesn’t want to come it’s his loss. 好吧，如果他不愿意來，那是他的損失。 respond vi. 回答；響應(yīng)；做出反應(yīng) ① The disease responds to the drug.該病對這種藥顯出良好的反應(yīng)。 ② He responded to my suggestion with a laugh.他對我的建議報以大笑。 辨析：respond指對他人的期望等在行動上做出的反應(yīng) answer 指用文字、語言或行動回答，是最普通用詞 reply指對他人的問題

28、、要求所作的相應(yīng)的答復(fù) 即景活用： —It is strange that Dave didnt respond ________ any of my emails. —Something must have happened to him. A．on B．with C．for D．to 解析：答案：D respond to...回復(fù)；對……作出反應(yīng)。 4. mercy n. 仁慈；寬??；憐憫 show mercy to sb/have mercy on sb 對某人憐憫、仁慈 at the mercy of 任…處置；無能為力 without mercy 毫

29、不留情地，殘忍地 例句：They showed mercy to their enemies. 他們對敵人很仁慈。 The ship was at the mercy of the storm. 那只船在暴風(fēng)雨中失去控制。 高手過招 ①He went down on his knees and_____________. 他跪下來，乞求寬恕。 ②They _____________ the poor father and daughter. 他們不憐憫這對可憐的父女。have no mercy on ③I shouldnt like to be _________

30、___ such a cruel man. 我不想任由這個殘忍的家伙擺布。 ④ _________________ she wasnt seriously hurt. 幸運(yùn)的是她傷勢不重。 答案：begged for mercy、have no mercy on、at the mercy of、It is a mercy that 5. certain adj. 確定的；某一；一定 for certain確定的，確實(shí)的 make certain弄清楚，弄確實(shí) be certain to do 一定會做某事 be certain of確信… 同意辨析：certain和

31、sure certain的主語既可以是人，也可以是物，而sure的主語通常為指人的詞。 即景活用 (1) There is ________ at the door who wants to speak to you. A．some men B．a(chǎn) some man C．certain men D．a(chǎn) certain man 解析：答案D。由there be句型中的is可知空中應(yīng)用單數(shù)名詞；而some與單數(shù)名詞連用時，不用a。some man＝a certain man“某個人”。 (2 ) It is ________ that the Chinese ping－pong tea

32、m will win the prize. A．sure B．necessary C．regular D．certain 解析：答案D。It is certain that...確信……。句意為：看來中國乒乓球隊(duì)有得獎的把握。 6. contain vt. 包含；容納 辨析：contain表示某物容納比其小的物品，強(qiáng)調(diào)內(nèi)容或內(nèi)含物/成分。 include指包括作為整體的一個部分或要素。 高手過招： ①The Chinese diet _______ a lot of fruit and green vegetables. 中國的飲食包括很多水果和綠

33、色蔬菜。 ②I couldnt _______ myself at the sight of him. 一見到他我就控制不住自己。 ③The hall can ___________ 3,000 people. 這個大廳可以容納3000人。 ④There are 40 students in this class, _________ one from America. 這個班有40個學(xué)生，包括一個美國學(xué)生。 contains, contain, contain/hold/seat/admit, including 7. appreciate vt. 鑒賞；感激；

34、意識到 1) 感激；感謝 e.g. I appreciate your help. 我感謝你的幫助。 2) 鑒賞；欣賞；賞識 e.g. Do you appreciate good wine? 你會鑒賞好酒嗎？ 3) 察覺；意識到 e.g. We appreciate the danger ahead. 我們意識到危險臨頭。 高手過招： He __________ your talents. 他欣賞你的才能。 I greatly ____________ your help. 我非常感激你的幫助。 I __________ your making the effort t

35、o come. 非常感激你能來。 I’ll __________ it if you help me with my English. 如果你能幫我學(xué)英語，我將不勝感激。 appreciates, appreciate, appreciated, appreciate 8. succeed vi. 成功vt. 接替；繼任 success n. (u)成功；（c)成功的人或事 adj. successful succeed in (doing)sth.成功地做了某事 succeed sb.as…接替某人當(dāng)…… 即景活用： The English have every rea

36、son to believe that ________2012 London Olympic Games will be ________ success. A．不填；a B．the；不填 C．the；a D．a(chǎn)；a 解析：句意：英國人有理由相信2012年倫敦奧運(yùn)會將會取得成功。在由普通名詞構(gòu)成的專有名詞前用定冠詞the。success表“成功”的概念時為不可數(shù)名詞，但作“成功的人”或“成功的事”講時為可數(shù)名詞，前面須加不定冠詞“a”表泛指，故選C。 9. harm vt. n. 損害；危害 adj. harmful Noise can harm our health

37、. 噪音有損你的健康。 Reading in the sun does/causes harm to your eyes.在陽光下閱讀對你的眼睛有壞處。 =Reading in the sun does/causes your eyes harm. =Reading in the sun is harmful to your eyes. 【鏈接】：do sb. good=do good to sb.對某人有好處 do sb. wrong=do wrong to sb.冤枉某人 Step II. 短語儲存 1.die out 滅絕；逐漸消亡/熄滅 【鏈接】：di

38、e of 因…而死(內(nèi)因) die from因…而死；死于(外因) 辨析：die out （家族、物種等）死亡、滅絕 die away (聲音、光線、風(fēng)等)逐漸平息、漸弱 die off (家族、種族等)相繼滅亡；(草木)先后枯死 die down(火、興奮程度)漸弱、漸息 It took a long time for the excitement to________. A．die out B．die off C．die down D．die away 解析：答案C。從句子所提供的語境以及四個短語動詞的用法來分析，此處用

39、die down，表示“興奮的心情漸漸平靜下來”。 2.in danger(of)在危險中；垂危 辨析：in danger指主語處于危險狀態(tài)中，意為“在危險中” Dangerous指主語對別人有危害，意為“危險的”。 The little girl was ______ losing her life，but she is now________. A．in the danger of；out of danger B．in danger of；out of the danger C．in the danger of；out of the danger D．in

40、 danger of；out of danger 解析：答案D。in danger (of)表示“處境危險，有……的危險”；out of danger意為“脫離危險”。注意在這兩個介詞短語中，danger前習(xí)慣上不用冠詞。 3. protect…from…保護(hù)…不受…(危害) It’s important to protect your skin from the harmful effects of the sun. 保護(hù)你的皮膚免受陽光的傷害是很重要的。 【鏈接】：keep…from doing sth. stop…(from )doing sth.阻止…做某

41、事 prevent…(from)doing. 4. pay attention to注意 提醒：to在這兒是介詞。 搭配：pay much attention to 非常注意 pay more attention to 更多關(guān)注 pay little/no attention to 很少/不注意 （1）Please pay attention to this clause in the sentence.請注意看句中的這個從句。 （2）Please pay attention to the difference between the

42、 two words.請注意這兩個詞之間的區(qū)別。 （3）You must pay attention to your teacher in the class. 上課的時候必須專心聽老師講課。 【鏈接】：draw/attract/catch/get one’s attention to…吸引某人對…的注意 fix/focus one’s attention on…將注意力集中于、專心于 devote one’s attention to…專心致志于 turn one’s attention to…將某人的注意力轉(zhuǎn)向… 5. “

43、with＋復(fù)合結(jié)構(gòu)”在句中多作狀語，也可以作定語。 此結(jié)構(gòu)中常見的賓語補(bǔ)足語形式有： V-ing形式、過去分詞、形容詞、副詞、介詞短語、動詞不定式、名詞 高手過招 The driver went to the town for help，with the passengers________(wait)in the bus. 答案：waiting With the luggage________(lay)on the platform，he fell asleep on the bench aside. 答案：laid 6. in relief 如釋重負(fù) relief

44、 from sth. 減輕…… e.g. The drug gives some relief from pain. 這種藥可以減輕一些痛苦。 7. burst into laughter 突然笑起來 習(xí)慣用語 burst in闖入; 突然出現(xiàn); 突然發(fā)作 burst out大呼; 驚叫; 沖出; 突然發(fā)作 burst into 突然 e.g. The aircraft crashed and burst into flames. 飛機(jī)突然墜地起火。 ● 鞏固訓(xùn)練 一. 翻譯下面單詞和短語 1. 結(jié)果___________________ 2. 自豪

45、_________________________ 3. 穿衣___________________ 4. 習(xí)慣于_______________________ 5. 關(guān)心___________________ 6. 盡管 ________________________ 7. 推遲___________________ 8. 申請_________________________ 9. 在開發(fā)中_______________ 10. 關(guān)注________________________ 11. 對…起作用_______

46、 12. 滅絕 _______________________ 13. 產(chǎn)生__________________ 14. 保護(hù)…免受__________________ 15. 保護(hù)區(qū)________________ 16. 平靜地 _____________________ 17. 強(qiáng)大的________________ 18. 容器________________________ 二. 用以上單詞和短語填空 1. The tour companies _____________ to be allowed to hunt

47、for a fee, which made a lot of money for the farmers. 2. The drug has an immediate _______________________ on the patient. 3. People held completely different views, and___________________, the discussion came to nothing. 4. They did not want to protect us ________________ tourists love to see us

48、。 5. He’s ___________________ his father being a famous scientist. 6. National natural _______________________ should not be opened to tourists. Do you agree? 7. Daisy hurried to _______________________ and put on her jeans and sweater. 8. I believe that you __________________________ animals an

49、d plants disappearing. 三. 完成句子 1. 盡管我有些觀點(diǎn)跟他不同，我喜歡與他一起干活。 I enjoy working with him,__________________________________________. 2. 你知道恐龍為什么在大約65萬年前突然滅絕了？ Do you know ________________________________________about 65 million years ago? 3. 你還知道那些其他瀕臨滅絕的物種嗎？ What other _____________________________

50、______________ do you know? 4. 我們能做些什么來保護(hù)麋鹿，使他們不會再次消失？ What can we do _______________________________________ disappearing again? 5. 人們相信，總有一天會有足夠多的動物再次在野外生活。 It __________________________ one day there will be enough animals living in the wild again. 6. 從現(xiàn)在起，我將更加關(guān)注野生動植物的保護(hù)。 I will ___________

51、___________________ wildlife protection _______________. 7. 我午飯更喜歡吃蛋糕，不喜歡吃面條。 I ____________________ some cakes for my lunch _________________ noodles. 答案： 一. 翻譯下面單詞和短語 1. as a result 2. be proud of 3. get dressed 4. get used to 5. be concerned about 6. even though 7. delay 8.

52、 apply 9. under development 10. pay attention to 11. have effect on 12. dye out 13. come into being 14. protect from 15. protection zone 16. in peace 17. powerful 18. container 二. 用以上單詞和短語填空 1. applied 2. effect 3.as a result 4. even though 5. proud of 6. protection z

53、ones 7. get dressed 8. are concerned about 三. 完成句子 1. even though I don’t agree with him on some points. 2.why dinosaurs died out suddenly 3. endangered species 4. to protect the Milu Dear from 5. is hoped that 6. pay more attention to from now on. 7. would prefer rather than 第四課時 Gr

54、ammar 一、教學(xué)內(nèi)容 現(xiàn)在進(jìn)行時的被動語態(tài) 二、教學(xué)目標(biāo) 在本節(jié)課結(jié)束時，學(xué)生能夠 1.掌握現(xiàn)在進(jìn)行時的被動語態(tài)的句型。 2.總結(jié)并熟練運(yùn)用各種時態(tài)的被動語態(tài)。 三、教學(xué)步驟 步驟一 例句呈現(xiàn) 1. We are being killed for the wool beneath our stomachs. 2. Our fur is being used to make sweaters for people like you. 3. I wonder what is being done to help you.

55、 4. Daisy turned around and found that she was being watched by an elephant. 5. So good things are being done here to save local wildlife. 步驟二 語法歸納 1. 現(xiàn)在進(jìn)行時的被動語態(tài) （1）肯定形式：am/is/are＋being＋過去分詞 The house is being painted. 房子正在被粉刷。 （2）否定形式: am/is/are＋not＋being＋過去分詞

56、 The trees are not being watered. （3）疑問形式: Am/Is/Are＋主語＋being＋過去分詞？ Am I being watched over? （4）特殊疑問句的形式: 把特殊疑問詞放在一般疑問句前面。 How many bridges are being built in the village? 2. 現(xiàn)在進(jìn)行時的被動語態(tài)基本用法： ①表示現(xiàn)在正在進(jìn)行的被動動作。 Mary is being interviewed now. ②表現(xiàn)階段正在進(jìn)行的被動動作。 The disease

57、 is being studied at present by scientist. ③少數(shù)及物動詞的進(jìn)行時表示按計(jì)劃、安排將要承受某個動作。 An party is being held tonight. 今晚將要舉辦一場晚會。 ④有些動詞進(jìn)行時的主動形式就可以表示被動的意思,常見的這些動詞有: print, cook, fry, bake, burn, hang. The house is burning. The meat is cooking. ⑤在某些 “介詞+名詞”的短語也可以表示正在進(jìn)行著的被動,常見的這些介詞有: on, under

58、Many new cars are on show. = Many new cars are being showed. Your questions are under discussion. = Your questions are being discussed. ⑥有些表“狀態(tài)，心理活動，情感”等的動詞，常用一般現(xiàn)在時的被動語態(tài)表示“正在進(jìn)行”。 e.g. You are wanted on the phone. MP3 is becoming more and more popular. In other words, it is loved by more an

59、d more people. 3. 現(xiàn)在進(jìn)行時的被動語態(tài)的其他結(jié)構(gòu) be + under / in + n. 可代替進(jìn)行時被動語態(tài) e.g. The city is under attack at the moment. → The city is being attacked at the moment. 目前這個城市正遭到進(jìn)攻。 e.g. The bridge is under repair. → The bridge is being repaired. 橋梁正在修理中。 一般現(xiàn)在時的被動語態(tài) 一般過去時的被動語態(tài) 一般將來時的被動語態(tài) 現(xiàn)在完成時的被動語態(tài) 現(xiàn)在

60、進(jìn)行時的被動語態(tài) do is/are done was /were done will be done has /have been done is/are being done write is/are written was /were written will be written has /have been written is/are being written 步驟三 練習(xí) 4. In the near future, more advances in the robot technology________ by scientists.

61、A．a(chǎn)re making B．a(chǎn)re made C．will make D．will be made 5. She was ________the bike for 20 dollars，but she wouldnt take it. A．provided B．supplied C．offered D．gave 6. The missing boys were last seen ________near the river. A．to sing B．singing C．to be singing D．sing 7. Be

62、fore she realized what happened，she got ________ on the head and lost consciousness. A．hit B．to be hit C．hitting D．hitted 8. Youve failed to do what you ________to and Im afraid the teacher will blame you. A．will expect B．will be expected C．expected D．were expected 9. The chu

63、rch tower which ________will be open to tourists soon. The work is almost finished. A．has restored B．has been restored C．is restoring D．is being restored 4. D 5. C 6. B 7. A 8. D 9. D 第五課時 Using Language 學(xué)習(xí)目標(biāo): 1．深入理解課文，掌握課文中的基礎(chǔ)知識； 2．自主學(xué)習(xí)，合作探究； 3. 體會恐龍退出歷史舞臺的悲哀，意識到野生動物保護(hù)的重要性和緊要性。

64、 學(xué)習(xí)重點(diǎn)：理解課文; 掌握本文中的重點(diǎn)單詞和短語。 預(yù)習(xí)導(dǎo)學(xué) 一、重點(diǎn)短語完形 1. __________ into ____________ 形成，產(chǎn)生 2. for _____________ 確切地 3. ___________________ to 根據(jù)，按照 1. come being 2. sure 3. according 二、經(jīng)典句型應(yīng)用 1．Others think the earth got ____________ hot for the dinosaurs ____________ live on any more.另外一些人認(rèn)為，地球變得太熱，

65、因此恐龍無法在地球上生活了。 2．Nobody knows for sure ________________ dinosaurs disappeared from the earth in such a short time.沒有人確切地知道恐龍是由于什么原因，又是怎樣在這么短的時間里從地球上消失的。 3．They lived on the earth tens of millions of years ago, ____________ ____________ humans came into being.千百萬年前恐龍就在地球上生活，比人類的出現(xiàn)要早得多…… 1. too…to

66、 2. why and how 3. long before 三、合作探究 先通讀教材，完成表層理解題，再勾畫出文中的疑難點(diǎn)，了解恐龍消失的原因。 1．Decide whether the following sentences are True Or False (1) There are many different species of dinosaur andall of them have been found in China．( ) (2) Not long ago, a rare new species of bird—like dinosaur was discovered in Henan Province. ( ) (3) Some scientists are sure dinosaurs died out because the earth got too hot for the dinosaurs to 1ive on any more. ( ) (4)