1、必修二Unit 4教案一.復習舊知滅絕動物大海牛于1768年滅絕；渡渡鳥 于1681年滅絕；恐鳥于 1800年左右滅絕；大海雀于1844年滅絕；開普（好望角）獅于1865年滅絕（生活最南端、 最大的獅子亞種）；阿特拉斯棕熊于1870年滅絕（唯一產于非洲的棕熊和熊類）；南極狼于1875年滅絕（生活在地球最南端的犬科）；美國緬因洲海鼬于1880年滅絕； 于20世紀90年代滅絕（區(qū)域性滅絕）；亞歐水貂于1997年左右滅絕.據世界紅皮書統計，20世紀有110個種和亞種的哺乳動物以及139種和亞種的鳥類在地球上消失了。目前，世界上已有593種鳥、400多種獸、209種兩棲爬行動物和20000多種高等植物

2、瀕于滅絕。海牛目中已知體型最大的物種大海牛身長約7.5米，體重4,500至5,900公斤，可長到10.7米長7 / 7成年黑足雪貂平均體長 0.5米,高度可達3米（10英尺），重量約250公斤（ 550磅）尾長0.15米，體重約1公斤天蛾人（Mothman ）是一種不明的奇異生物，又名 黑天使，惟一的克星是上帝之網?？梢噪[形，此時只有同伴相互可見，雌體較雄體強壯，每一具雌體都是雄體的啟蒙者。二.新課講解1. As a result / as a result of 區(qū)另1Jas a result作為狀語來用，強調結果。后面一般用逗號隔開。as a result of +名詞（短語）/代詞強調原

3、因，意義相當于because of.Eg: He worked hard at his study. As a result, he passed the exam easily.As a result of his hard work, he passed the exam easily.2. Die outdie from 一般指除了疾病、情感、饑寒以外的原因而造成的死亡，指死于外因die of (內部因素)情感、疾病、饑寒死因die for為而死，為而獻身，表示因事業(yè)或目的而死。die out 種類滅絕Elephants would die out soon if men were al

4、lowed to shoot.逐漸消失 Many old customs are dying out.漸漸變小 The fire died out in the enddie away光、聲音慢慢消失，風停下來He died from smoking/drinking He hid behind the door until the footsteps had died away3. Reservevt. 1).儲備，保存;保留(+for)These seats are reserved for special guests.這些座位是為特別的來賓保留的。We will reserve the

5、 money; we may need it later.我們將把這筆錢存起來 ，也許以后用得著。2).預約，預訂They have reserved rooms at a hotel.他們已預訂了旅館房間。1 have reserved a table at the restaurant.我已在飯店預訂了一桌菜。n.1）.儲備（物）;儲備金;CU（+of）The old man kept a large reserve of firewood for cold weather. 這位老人貝士存了 大量的柴薪以備 天冷時用。2 ）.保留地保護區(qū)；禁獵區(qū)C3）.儲備選手，候補C4.In peac

6、e / at war 處于戰(zhàn)爭狀態(tài)in peace: 安靜地，和平地，和睦地例句與用法:Please let me do my work in peace. 請讓我安靜地工作。rest In peace：指死后靈魂安息May his soul rest in peace! 愿他的靈魂祥和地安息！1.1 n danger 事物本身對別人沒威脅，但事物本身出危險的環(huán)境下dangerous事物本身對別人有威脅，別人說這個事物是危險的e.g. We cannot find the kid. Its dark, she must be in danger now.小孩找不到了，天黑了，她處境危險。It

7、is dangerous to walk too near the edge of a cliff. 太走近懸崖邊是危險的。danger表示“危險”，是不可數名詞，表示“危險的人或物”，是可數名詞。短語 out of danger 脫離危險on the danger list 病入膏肓endangered 瀕臨危險的6. Apply 動詞 “申請 ”“ 應用 ”apply sth to sth /sb 是指把某物應用在某物/人上但是注意，因為這里的to 是做介詞用，所以如果要在to 后面用動詞，必須用動詞的ing 形式。apply for 是申請的意思,是申請某職位，某證明,某獎學金等等app

8、ly for visa 申請簽證apply for a position 申請職位I want to apply for the scholarship of this school.we can apply this new technology to our new product.例題 Look the nurse some medicinethe wound in the soldier s leg.A. applies ; at B. applied ; to C. is applying ; with D. is applying ; to答案 D Look 指 “看啊 ”，表示正

9、在發(fā)生，apply sth. to sth/sb. 固定用法,是指把某物應用在某物 /人上7. Suggest1) suggest doing sth.They suggested waiting until the proper time. 他們建議(我們)等到恰當的時機才行動.2) suggest thatShe suggested that the class meeting (should) not be held on Saturday.她建議班會不要在星期六舉行.3) suggest sth. to sb. 有 提出的意思He suggested a different plan

10、to his boss. 他向老板提出了一個不同的計劃.Xiao Wang suggested a way to solve the problem. 小王提出了一個解決這個問題的辦法.4)有暗示、表明的意思.其主語往往是事物,而不是人. 接名詞或動名詞作賓語.The simple house suggested a modest income. 這座簡樸的房子表明(房主的)收入并不高.Her pale face suggested bad health. 她臉色蒼白,看來身體不好.The thought of summer suggests swimming. 一想到夏天就使人們聯想到游泳8

11、. Protect .from 1) 、 prevent sb from doing sth 與 stop sb from doing sth 均為 “阻止某人做某事”用法相同，在主動語態(tài)中from 可以省略，被動語態(tài)中不行。2) 、 keep sb from doing sth 中的 from 無論在主動語態(tài)中還是在被動語態(tài)中都不能省略。你可以這樣想一想，如果沒有了from 就變成了keep sb doing sth 了，意思就反過來了。3)、protect frc/mgain表示 保護不受侵襲，擋住，防御。from后接能帶來傷害或損害之物。Eg:1： You should protect

12、the children from catching cold. 你應該防備孩子們受涼。9. Containcontain: have or hold sth within itselfinclude: have sb/sth as part of a whole這樣看來，contain, include的區(qū)別：者B有 包含的意思，included要強調被包含的東西本身是其一部分，而contain 則強調包含不屬于本身的其他東西在里面。”例如：The parcel contained a dictionary. 那包裹里裝的是一本字典。e.g. The health club includes

13、 a gym, swimming pool , and locker room.The pill contains vitamins. 這藥丸中含有多種維生素。10. Affect詞匯辨析affect, effect, influence ：1) affect常用作動詞，意思是 對有影響”或 給帶來變化”。例如： Does second hand smoke affect the health of all of us?2) effect 在大多數情況下都被用作名詞，意為 “結果 ” 效果 “ ”； “作用 ”； “影響 ”： to affect sth.=tohave an effect o

14、n sth.例如： The drug did not affect the disease, and it had several adverse (不利的，反對的)sideeffects.一個簡便的原則就是如果你需要一個動詞的話，十之八九選用affect,如果需要一個名詞，則通常使用effect.3) influence 指通過行動、榜樣等對他人產生潛移默化的影響或作用，注重“影響 ”的結果。記憶形似詞：effect n.影響； effortn.努力infect vt.醫(yī)傳染，感染。主要是指傳染(病毒什么的)，一般不用在好事情上?？键c提要in effect = in fact 實際上；tak

15、e effect = come into force 實施，生效；例題 Reading on bed A our eyes.A. has a bad effect on B .take a bad effect on C.has a bad effect to D. has a bad affect on have an effect on 對 .有影響11. Pay attention topay attention to doing. 注意，關心，留心。Draw/catch attention to. 使人們關注. ；e.g. The article was intended to dra

16、w attention to the situation in Cambodia. 這篇文章旨在呼吁人們關注柬埔寨局勢。get down to doing類似的，devote one s time to doing12. Come into being 形成 ；產生We do not know when this world came into being. 我們不知道世界是何時形成的。三 . 課堂練習單項選擇1. This disease has completely in this country.a. died out b. died down c. died away d. died

17、off2. Dark glasses are sometimes worn to the eyes from sunlight.a. prevent b. care c. defend d. protect3. Pine trees, of which there are almost one hundred , are found throughout the NorthTemperate Zone.a. species b. samples c. speciamens d. standards4. In the botanic garden we can find a(an) of pla

18、nts that range from tall trees to smallflowers.a. species b. group c. amount d. variety5. With the water in the lake rising, villages around are .a. in danger b. dangerous c. danger d. in dangerousb. Wouldn t you like some dumplings? Well, I d like to have a few. But, the bad ones last time, I dare

19、not.a. as a result b. as a result of c. as a matter of d. as far as7. Don t look at him. He is doing that to attract genera_l.a. word b. expression c. attention d. appearance8. The new law will come into on the day it is passed.a. effect b. use c. service d. existence9. He thinks that therapy( 治療) t

20、he patient s health.a. cures b. effects c. treats d. affects10. I apologized to Mr Wang and made my with him.a. word b. peace c. promise d. mind五.家庭作業(yè)單項選擇11. He suggested it in a different way.a. to do b. doing c. to be done d. done12. She suggested that Mike there at once.a. gone b. went c. go was

21、going13. His way of speaking suggested that he very angry.a. was b. were c. be d. should14. Her sun-tanned face excellent health.a. thinks b. thinks of c. suggests d. is suggested.15. As my grandfather felt better, his doctor him to take a holiday.a. advised b. considered c. hoped d. suggested16. I

22、to get up early, but forgot to set the alarm.a. intended b. advised c. suggested d. thought17. The results of this research can new developments in technology.a. be used by b. be applied to c. be made in d. be dealt with18. The belt in the car sometimes can you from traffic accident.a. care b. prevernt c. defend