高中英语Unit4Wildlifepretection词汇导练(Part1)课件新人教版必修2.ppt

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1、 1.decrease vt./vi.&n.减少，降低减少，降低 If their habitat is threatened or they cannot find enough food，their number may decrease.如果其栖息地受到威胁，或者无法如果其栖息地受到威胁，或者无法觅取足够的食物，它们的数量就可能减少。觅取足够的食物，它们的数量就可能减少。(P25)读一读读一读 阅读下列句子，归纳阅读下列句子，归纳decrease的词的词性、意义和用法。性、意义和用法。The price of this type of MP3 player has decreased b

2、y 15%.(词性词性:vi.；意义意义:减少减少;搭配搭配:表示表示“减少了减少了”)The number of new students decreased from 210 to 160 this year.(词性词性:_意义意义:_搭配搭配:表示表示“从从减少到减少到”)vi.减少到减少到 They are making every effort to decrease the production cost.(词性词性:_意义意义:_)The decrease in unemployment was 30 percent.(词性词性:_意义意义:_)vt.减少减少n.减少减少练一练练

3、一练选择选择decrease/increase并用其正确并用其正确形式填空。形式填空。The number of visitors _ sharply in the past two months.The _ worries the manager.“Something must be done to _the number of visitors.”he thought.increasehas decreaseddecreasedecrease by 减少了减少了decrease(from.)to.(从从)减少到减少到increase v.&n.增加，增长增加，增长increase by 增

4、加了增加了increase(from.)to.从从)增加到增加到 记一记记一记 2.die out灭绝灭绝 As a result these endangered animals may even die out.结果，这些濒危动物甚至可能结果，这些濒危动物甚至可能灭绝。灭绝。(P25)读一读读一读 阅读下列句子，体会与阅读下列句子，体会与die相关短相关短语的不同意思。语的不同意思。Elephants would die out if man shot as many as they wished.()He hid behind the door until the foot steps

5、had died away.()灭绝灭绝逐渐减弱逐渐减弱,逐渐消失逐渐消失练一练练一练 用用the death of、die from、die out、dying to的正确形式填空。的正确形式填空。Kathy is always 1_ see species of wildlife.She appreciates that many types of plants and animals 2 _in the wild every year，and most of them 3_ too much hunting and destruction of their habitats.She bu

6、rsts into tears every time she hears about 4 _ wild animals.the death ofdying todie outdie fromdie out灭绝灭绝die away逐渐减弱，逐渐消失逐渐减弱，逐渐消失die for为为而死而死die of/from 因因而死而死 记一记记一记 3.loss n.丢失，迷失丢失，迷失 .loss of bamboo growing areas.竹子竹子生长区的消失。生长区的消失。(P25)读一读读一读 阅读下列句子，指出划线单词的词阅读下列句子，指出划线单词的词性、意义和用法。性、意义和用法。You

7、 will lose your job if you keep on like this.(lose词性词性:_意义意义:_)vt.失去失去 Lost time is never found again.(lost词性词性:_词义词义_ )I am at a loss what to do next.(loss词性词性:_词义词义_ )adj.丢失的丢失的,失去的失去的n.丢失，迷失丢失，迷失 练一练练一练用用lose的适当形式填空。的适当形式填空。She was at a _ when she heard the news that her son was_ in the forest.Sh

8、e couldnt bear(承受承受)the thought of _him.Fortunately，her son was just _ in studying a special type of wild animal and forgot the time to go home.lostlosslostlosingat a loss不知所措，困惑不知所措，困惑be lost in sth.全神贯注，沉浸于全神贯注，沉浸于be lost in thought 陷入深思陷入深思 记一记记一记 4.hunt vt/vi/n 打猎，搜寻打猎，搜寻 .too much hunting in th

9、e 1950s.在在20世世纪纪50年代的过度捕猎。年代的过度捕猎。(P25)读一读读一读 阅读下列句子，归纳阅读下列句子，归纳hunt的词性、的词性、意义和用法。意义和用法。Police are hunting for a thief who broke into the house yesterday.(词性词性:_意义意义:_搭配：搭配：hunt for 意为意为_ )正在追捕正在追捕 v.寻找寻找 Hundreds have joined in a police hunt for the missing teenager.(词性词性:_词义词义_)Since the 1970s tig

10、er hunting has been illegal in this country.(词性词性:_词义词义_)搜寻搜寻 打猎打猎 n.n.练一练练一练用用hunt/hunter/hunting/hunt for的的正确形式填空。正确形式填空。Mr.Smith is an excellent _ who used to make a living by _ wild animals.After wild animal _was forbidden he had to go to the city to _ a new job.hunt for hunterhuntinghuntinghunt

11、 for搜寻，追踪搜寻，追踪go hunting去打猎去打猎job hunting找工作找工作house hunting找房子找房子 记一记记一记 5.in peace和平和平/和睦和睦/安祥地安祥地 .about 30-40 remain after being left in peace with no hunting.在免受捕猎打扰后，在免受捕猎打扰后，约有约有30到到40只存留下来。只存留下来。(P25)读一读读一读 阅读下列句子，体会与阅读下列句子，体会与peace相关相关短语的不同意思。短语的不同意思。He just wants to be left in peace.(意义意义_

12、)The countries have been at peace for more than a century.(意义意义_)和平和平/和睦和睦/安祥地安祥地处于和平局面处于和平局面练一练练一练用用in peace/at peace/at war填空。填空。All the villagers live together _.The two countries used to be _ with each other.Fortunately,now they are _.in peace和平和平/和睦和睦/安祥地安祥地at peace 处于和平局面处于和平局面at war处于战争状态处于战争状态 记一记记一记 at peacein peaceat war