优化课堂2012高一英语精品课件：UNIT 4：SECTION Ⅰ WARMING UP .ppt

1、Unit 4Section Wildlife protectionWarming Up&ReadingIf their habitat is threatened or they cannot findenough food,their numbers may decrease.(Page 25,WarmingUp)如果它们的栖息地受到威胁或它们找不到足够的食物，它们的数量会减少。1decrease点拨(1)vt.&vi.减少；(使)变小；或变少The government will decrease education spending by 20%.政府将减少 20%的教育开支。Car s

2、ales are decreasing.汽车销量正在减少。(2)n.减少；减小There has been a decrease in our imports.我们的进口减少了。拓展 increase v.&n.增加；增大运用 用 decrease/increase 的适当形式填空All people desire an _ in well-being(福利)The workmen want to _ the working hours andto _ pay.As populations _，the demand for water growsaccordingly.The flood re

3、sulted in a considerable _ in production.increasedecreaseincreaseincreasedecreaseAs a result these endangered animals may even dieout.(Page 25,Warming Up)结果，这些濒危的动物甚至可能会灭亡。2die out 灭亡；逐渐消失典例 Many old customs are dying out.很多古老的习俗正在消失。拓展 die from 因(受伤、意外事故等外部原因)而死亡die of 因(疾病、饥饿、情感等内部原因)而死亡die away(声

4、音等)逐渐减弱；渐渐消失die off 相继死去die down(火焰、风暴等)逐渐变弱；逐渐平息；逐渐暗淡运用 用适当的介词或副词填空Now many wild plants and animals are in danger of dying_.The firefighters fought against the forest fire and it finallydied _.The noise of the car died _ in the distance.The family members died _ the war.outdownawayfromabout 30 40 r

5、emain after being left in peace with nohunting(Page 25,Warming Up)停止猎杀和人类和睦相处之后只剩下 30 至 40 只。3in peace 和平地；和睦地；安详地(常作状语或补语)典例 The two communities live together in peace.这两个社区和平相处。拓展 at peace 和平的(常作表语，与 at war 相对)at peace with 与和平相处make peace with 与讲和运用 完成句子The villagers live _(和平地)For centuries,the

6、countries have been _(与和平相处)each other.He wants to _(和解)his friend.in peaceat peace withmake peace withWhy are they in danger of disappearing？(Page 25,Pre-reading)为什么它们面临灭绝的危险？4in danger(of)在危险中；垂危典例Many wild animals are in danger and measures shouldbe taken immediately to protect them.很多野生动物处于危险中，必

7、须立即采取措施保护它们。拓展 out of danger 脱离危险运用 完成句子The little girl is _(有的危险)losing her life.She has been _(脱离危险)with thehelp of the doctor.in danger ofout of dangerDaisy responded immediately.(Page 26,Reading,Line4)戴茜立即回答。5respond vi.回答；响应；做出反应典例 He hasnt responded to my letter yet.他还没有回我的信。拓展 respond to.对作出回

8、答respond to.with./by doing.以对做出反应/回答运用 完成句子She _ my letter _(以对做出回复)a phone call.responded towithIn relief Daisy burst into laughter.(Page 26,Reading,Line 16)戴茜如释重负，突然笑了起来。6relief n.(痛苦或忧虑的)减轻或解除；减轻痛苦的事物典例 The drug gives some relief from pain.这种药可以减轻一些痛苦。拓展 in relief 如释重负；松了口气(much)to ones reliefto

9、ones great relief使某人安心/宽慰的是运用 完成句子_(使他父母很欣慰的是),hepassed the exam.When his son came home at last,he was _(松了口气)Much to his parents reliefin relief7burst into 突然起来；闯入典例 To my surprise,Ben suddenly burst into laughter.令我惊讶的是，本突然大笑了起来。The police burst into the room and arrested him.警察突然闯进房间逮捕了他。拓展 burst

10、 into laughter/tears/flames/cheers/songburst out laughing/crying/burning/cheering/singing突然笑起来/哭起来/燃烧起来/欢呼起来/唱起来运用 完成句子They were so moved that they _(哭了起来)The crowd _(一片欢呼)burst into tears/burst out cryingburst into cheers/burst out cheering“Im protecting myself from mosquitoes,”it replied.(Page 26,

11、Reading,Line 28)“我 正 在 保 护 自 己 免 受 蚊 虫 叮咬，”它回答。8protect.from(protect.against)保护不受(危害)典例A new law has been made to protect the animal frombeing harmed.已制定一部新的法律保护这种动物免受伤害。辨析 protect.from/prevent.from/keep.from/stop.from(1)prevent/keep/stop.from 意为“阻止做”，动词所接的宾语是要被阻止的对象。而 protect.from 中动词所接的宾语是要被保护的对象。

12、(2)在主动语态中，prevent.from 和 stop.from 的 from 可以省略，在被动语中则不能省略；而 keep.from 的 from 在任何语态中都不可以省略。prevent.from,keep.from 与 stop.from中 from 后面的动词与 from 前面的名词构成动宾关系时，后面用动词-ing 形式的被动形式。如：The heavy rain kept us from/prevented/stopped us (with)coming on time.大雨阻止我们按时到达。We should take measures to prevent/keep/sto

13、p the animalsfrom being killed.我们应该采取措施保护动物免受杀害。运用 用上面所提供的辨析词的适当形式填空The warm clothes can _ us _the cold.We must _ the water running away.She _ herself from being affected bythe bad news.protectfromprevent/stopkept/prevented/stoppedIt contains a powerful drug which affects mosquitoes.(Page 26,Reading

14、,Line 29)它含有一种可以防止蚊虫叮咬的强效药物。9contain vt.包含；容纳；容忍典例 The bottle contains two glasses of beer.这瓶子可装两杯啤酒。Try to contain your anger!设法控制你的怒火！辨析 contain/include(1)contain 指某物包含比它范围更小的物体，常指“(作为容器、地理范围、空间等)含有某物；(在成分、性质等方面)包含了某种成分”。(2)include 侧重于对比整体与部分，表示被包括者只是整体的一部分，常用于结构 including sth.(sth.included)。运用 用上

15、面所提供的辨析词的适当形式填空Now the city _ a population as large as 5 million.Our duties _ typing letters and answering phones.The food _ enough vitamins your body needs.Six people were killed,a policeman _.containsincludecontainsincluded10affect vt.影响；感动；侵袭典例 Their opinion will not affect my decision.他们的意见不会影响我

16、的决定。He was deeply affected by my words.听了我的话他很感动。The illness has affected her body.疾病已侵入她的身体。辨析 affect/effect/influence当表示“影响”时，affect 为动词，effect 为名词，influence既可为名词也可为动词。(1)affect 主要指一时的影响，侧重影响的动作，可指一般意义的影响，也可指不良影响。(2)effect 主要指受影响的结果，即“效果”，可以是好的，也可以是坏的。(3)influence 主要表示对人的“心理、行为”产生某种潜移默化的影响，它的影响对象一

17、般是人。运用 用上面所提供的辨析词的适当形式填空This accident had a great _ upon the future of bothmother and son.The work has _ his health.Those so-called friends of hers have a bad _ on her.effectaffectedinfluenceYou should pay more attention to the rainforest whereI live and appreciate how the animals live together.(Pag

18、e 26,Reading,Line 30)你应该多加关注我生活的热带雨林，并且了解热带雨林的动物是如何在一起生活的。11pay attention to点拨 pay attention to 意为“注意；留心”，to 为介词，后接动词用其-ing 形式。如：Please pay attention to using the glass.请留心使用这个玻璃杯。拓展 catch/draw/arouse ones attention 吸引某人的注意力bring sth.to sb.s attention 使某人注意某事fix/focus(ones)attention on 把(某人的)注意力集中在运

19、用 完成句子We should _(注意保护)the wildlife.The professor tried not to _(使其他人注意)his weak point of his speech.A different theme is chosen every year to _(集中注意于)important health topic.pay attention to protectingdraw/catch/arouse others attention tofix/focus attention on12appreciate vt.鉴赏；感激；意识到典例 You cant ful

20、ly appreciate foreign literature in translation.看翻译作品很难欣赏到外国文学的精髓。We appreciate your helping us.我们感谢你们的帮助。拓展 appreciate ones doing sth.感激某人做某事运用 完成句子I am afraid you _(还没有意识到)the importance of the matter.We would _(感谢您的到来)havent appreciatedappreciate your comingWhat must be done if wildlife protectio

21、n is tosucceed？(Page 27,Comprehending)如果要成功地保护野生动物，必须采取什么措施呢？13succeed vi.成功 vt.接替；继任典例 If you work hard you will succeed.如果你努力工作，你就会成功。The younger man will succeed Mr.White as director.那位年轻点的男士将接替怀特先生当主任。拓展 succeed in doing sth.成功地做某事运用 完成句子Jim finally _(成功通过)the test of piano.succeeded in passingW

22、hat should be done to punish people who do harm tothe animals？(Page 27,Comprehending)我们应该采取什么措施来惩罚那些伤害动物的人呢？14harm点拨(1)n.损害；危害It wouldnt do him any harm to work a bit harder.工作努力点对他没什么害处。(2)vt.损害；危害Your dishonesty will harm the relationship between you and her.你的不诚实会伤害到你和她的关系。拓展 do harm to.对有害mean n

23、o harm to.对没有恶意harmful adj.有害的be harmful to.对有害辨析 harm/injure/wound/hurt(1)harm 常用于口语，表示肉体或精神上受到伤害。(2)injure 意为“伤害”，多指事故中人或物受到损伤。(3)wound 意为“使受伤，伤害”，主要指外界暴力或用武器造成身体上较重的伤害。(4)hurt 意为“伤害(感情)；使疼痛”，常指精神上的痛苦或感情上受到伤害，或某物让人感到不舒服和有疼痛感；作不及物动词时，意为“疼痛”。运用 完成句子Staying up late will _(对你有害)The soldier _(受了重伤)in t

24、he head.In the traffic accident,two were killed and three _(受伤)These words have _(伤害)him deeply.do harm/be harmful to youwas badly woundedgot/wereinjuredhurt本课时单词拓展单词构词法小结protection n保护protect vt.保护1.表示“充满的；有特性”的形容词后缀是：_，请举例说明：_。2.以-t 结尾的形容词，其名词多以_结尾，请举例说明：_。3.以-t 或-te 结尾的动词可添加后缀_构成名词，表示“行为的过程、结果等”，

25、请举例说明：_。4.形容词可以添加后缀_变成抽象名词，表示“性质，状态等”，请举例说明：_。5.以-ce 结尾的抽象名词，其形容词通常以_结尾，请举例说明：_。loss n损失；遗失；丧失lose vt.丢失；失去lost adj.迷失的；沉迷的mercy n仁慈；宽恕；怜悯merciful adj.仁慈的；宽恕的importance n重要(性)important adj.重要的powerful adj.强大的；有力的power n力量；权力appreciate vt.鉴赏；感激；意识到appreciation n感激；鉴赏secure adj.安全的；可靠的security n安全succ

26、eed vi.成功 vt.接替；继任success n成功successful adj.成功的harm n&vt.损害；危害 harmful adj.有害的运用 用所给单词的适当形式填空1Peter thought the boss was _，but he fired Peterwithout _.(mercy)2_ of health is more serious than anything else,sowhen you are _ in your work,you should always payattention to your health.I think who _ his

27、health is actuallya failure.(lose)3The tiger was unable to resist any attack as his _ wasfailing,even though he wanted to be as _ as before.(power)4 The laptop must have a covering which can _ thecomputer against water.Im sure this can make the computer runwell under the _.(protect)mercifulmercyLoss

28、lostlosespowerpowerfulprotectprotection5 Staying up late does _ to our health,which isespecially _ to our eyes.(harm)6We greatly _ her help and we expressed our_ with flowers.(appreciate)7If the life is a boat,the dream is its sail.A _ personmust have a dream.Without it,you will never _.(success)8_

29、measures must be taken immediately to guaranteethe _.(secure)9Its _ and necessary to realize the _ ofEnglish.(importance)harmharmfulappreciatedappreciationsuccessfulsucceedSecuresecurityimportantimportanceNo rainforest,no animals,no drugs.(Page 26，Reading,Line 31)没有雨林就没有动物，也就没有药物。点拨“no.,no.”意为“没有就没有”，这个简略式常用于谚语、格言等中。如：No fire,no smoke.无风不起浪。运用 完成句子_ wills,_(没有就没有)actions._，_(不劳无获)NonoNo painsno gains