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1、2021/8/11 星期三1Unit 4 Wildlife protection2021/8/11 星期三2 重点词汇导练2021/8/11 星期三3 Part 1 Warming up and Pre-reading2021/8/11 星期三4 1. decrease vt./vi. & n. 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,或者无法觅取足够的食物,它们的数量就可能减少。(P25) 2021/8/11 星期三5

2、读一读 阅读下列句子,归纳decrease的词性、意义和用法。 The price of this type of MP3 player has decreased by 15%. (词性: vi.; 意义: 减少;搭配: 表示“减少了”) The number of new students decreased from 210 to 160 this year. (词性:_意义:_搭配:表示“从减少到”)vi.减少到2021/8/11 星期三6 They are making every effort to decrease the production cost. (词性:_意义:_)

3、The decrease in unemployment was 30 percent. (词性:_意义:_)vt.减少n.减少2021/8/11 星期三7练一练选择decrease/increase并用其正确形式填空。 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 decreaseddecrease2021/8/11 星期

4、三8decrease by 减少了decrease (from .)to .(从)减少到increase v. & n. 增加,增长increase by 增加了increase (from .)to .从)增加到 记一记 2021/8/11 星期三92. die out灭绝 As a result these endangered animals may even die out. 结果,这些濒危动物甚至可能灭绝。(P25) 2021/8/11 星期三10读一读 阅读下列句子,体会与die相关短语的不同意思。 Elephants would die out if man shot as ma

5、ny as they wished. ( ) He hid behind the door until the foot steps had died away. ( )灭绝逐渐减弱, 逐渐消失2021/8/11 星期三11练一练 用the death of、die from、die out、dying to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

6、 them 3_ too much hunting and destruction of their habitats. She bursts into tears every time she hears about 4 _ wild animals.the death ofdying todie outdie from2021/8/11 星期三12die out灭绝die away逐渐减弱,逐渐消失die for为而死die of/from 因而死 记一记 2021/8/11 星期三13 3. loss n.丢失,迷失 . loss of bamboo growing areas.竹子生长

7、区的消失。(P25) 读一读 阅读下列句子,指出划线单词的词性、意义和用法。 You will lose your job if you keep on like this. (lose词性:_意义:_ )vt.失去2021/8/11 星期三14 Lost time is never found again.(lost词性:_词义_ ) I am at a loss what to do next. (loss词性:_词义_ )adj.丢失的,失去的n.丢失,迷失2021/8/11 星期三15 练一练用lose的适当形式填空。 She was at a _ when she heard the

8、 news that her son was_ in the forest. She couldnt bear(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.lostlosslostlosing2021/8/11 星期三16at a loss不知所措,困惑be lost in sth. 全神贯注,沉浸于be lost in thought 陷入深思 记一记2021/8/11 星期三17

9、 4. hunt vt/vi/n 打猎,搜寻 .too much hunting in the 1950s.在20世纪50年代的过度捕猎。(P25) 读一读 阅读下列句子,归纳hunt的词性、意义和用法。 Police are hunting for a thief who broke into the house yesterday. (词性:_意义:_搭配:hunt for 意为_ )正在追捕 v. 寻找2021/8/11 星期三18 Hundreds have joined in a police hunt for the missing teenager.(词性:_词义_) Since

10、 the 1970s tiger hunting has been illegal in this country.(词性:_词义_)搜寻 打猎 n. n. 2021/8/11 星期三19练一练用hunt/hunter/hunting/hunt for的正确形式填空。 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 hunterhun

11、tinghunting2021/8/11 星期三20hunt for搜寻,追踪go hunting去打猎job hunting找工作house hunting找房子 记一记 2021/8/11 星期三215. in peace和平/和睦/安祥地 . about 30-40 remain after being left in peace with no hunting.在免受捕猎打扰后,约有30到40只存留下来。(P25) 2021/8/11 星期三22读一读 阅读下列句子,体会与peace相关短语的不同意思。 He just wants to be left in peace. (意义_ ) The countries have been at peace for more than a century. (意义_ )和平/和睦/安祥地处于和平局面2021/8/11 星期三23练一练用in peace/at peace/ at war填空。 All the villagers live together _. The

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