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1、Unit 4Section ,Wildlife protectionWarming Up & Reading,If 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
2、%的教育开支。,Car sales 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 and,to _ pay.,As populations _，the demand for water grows,ac
3、cordingly.,The flood resulted in a considerable _ in production.,increase,decrease,increase,increase,decrease,As 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
4、 因(疾病、饥饿、情感等内部原因)而死亡,die away,(声音等)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 finally,died _.,The noise of the car died _ in the distance.The family members di
5、ed _ the war.,out,down,away,from,about 30 40 remain 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
6、,运用 完成句子,The villagers live _ (和平地)For centuries, the countries have been _,(与和平相处) each other.,He wants to _ (和解) his friend.,in peace,at peace with,make peace with,Why 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
7、and measures should,be taken immediately to protect them.很多野生动物处于危险中，必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 the,help of the doctor.,in danger of,out of danger,Daisy responded immediately.(Page 26, Reading, Line,4)戴茜立即回答。,5re
8、spond 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 to,with,In 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
9、 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 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), he,passed the exam.,When his son came home at last, he was _,(松了口气),Much to his parents relief,in relief,7burst into 突然起来；闯入,典例 To my surprise, Ben sudd
10、enly 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 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
11、 tears/burst out crying,burst into cheers/burst out cheering,“Im protecting myself from mosquitoes,”it replied.(Page 26, 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 from,being harmed.已制定一部新的法律保护这种动物免受伤害。,辨
12、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。,(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
13、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/stop the animals,from 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
14、 affected by,the bad news.,protect,from,prevent/stop,kept/prevented/stopped,It contains a powerful drug which affects mosquitoes.,(Page 26, Reading, 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 用上面所提供的辨析词的适当形式填空,
