高中英语 Unit 4 Wildlife pretection词汇导练(Part 1)课件 新人教版必修2

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的词性、的词性、意义和用法。意义和用法。 The price of this type of MP3 player has

2、 decreased by 15%. (词性词性: vi.； 意义意义: 减少减少;搭配搭配: 表示表示“减少减少了了”) 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

3、意义:_)vt.减少减少n.减少减少练一练练一练选择选择decrease/increase并用其正确形并用其正确形式填空。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

4、 v. & n. 增加，增长增加，增长increase by 增加了增加了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结果，这些濒危动物甚至可能灭绝。能灭绝。(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. (

5、) He hid behind the door until the foot steps 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 m

6、uch hunting and destruction of their habitats. She bursts 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.竹子生竹子生长区的消失。长区的消失。(P25)

7、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 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

8、a _ when she heard the news that her son was_ in the forest. She 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

9、 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 the 1950s.在在20世纪世纪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

10、a police hunt for the missing teenager.(词性词性:_词义词义_) Since the 1970s tiger 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的正的正确形式填空。确形式填空。 Mr. Smith is an excellent _ who used to make a living by _ wild animals. After wild animal _was forbid

11、den he had to go to the city to _ a new job. hunt for hunterhuntinghuntinghunt 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相关短相关短语的不同意思。语的不同意思。 He just wants to be left in peace. (意义意义_ ) 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 l