Period 2 课文整体阅读(Understanding ideas)
1．What's the passage mainly about
A．Macquarie Island was saved from destruction．
B．The chaos caused on Macquarie Island by humans．
C．A funny story about what happened on Macquarie Island．
D．The ways in which an ecosystem can be protected．
2．Match the main idea with each paragraph．
①Para．1 A．The rabbit problem resulted in parakeets' dying out．
②Para．2 B．The rat，mouse and rabbit problem made people realise that problems should be solved once and for all．
③Para．3 C．The author participated in a programme to tackle this very problem．
④Para．4 D．Native inhabitants on Macquarie Island were once in perfect harmony with their natural habitat．
⑤Para．5 E．People released a virus to kill rabbits and used traps and dogs to catch the cats．
⑥Para．6 F．Rats and mice brought to the island caused harm．
Read the passage carefully and choose the best answer．
1．What can we learn from the first paragraph
A．Macquarie Island is a UNESCO World Heritage Site because of its wild and natural beauty．
B．The green grass and bare rock of its landscape on Macquarie Island form its beauty．
C．Royal penguins，king penguins and elephant seals live in perfect harmony now．
D．The writer is standing on Macquarie Island enjoying its wild and natural beauty．
2．What is mentioned in the passage
A．When humans arrived on the island，they hunted the birds on the island．
B．So many rats and mice were brought to the island on purpose．
C．Rats and mice have been taking over the island，eating the birds' eggs so far．
D．Cats were introduced to the island to control the rats and mice．
3．What was the cause of soil erosion according to the passage
A．Rabbits were introduced to the island，multiplying rapidly，eating the native vegetation and digging holes．
B．Parakeets，native to the island，died out because of human activities．
C．The increasing number of cats led to more cats hunting the birds．
D．Rats and mice multiplied rapidly and dug holes．
4．Which method to remove the rabbits from the island was used effectively in the 1970s
A．A large number of dogs were released．
B．A large number of birds were released．
C．A virus was released onto the island．
D．A large number of cats were released．
5．What caused some land to collapse at the beginning of the 21st century
A．The departure of the cats from the island．
B．The increasing population of mice and rats．
C．The digging of the rabbits．
D．The death of a number of penguins．
1．What's your opinion about invading species
____________________________________________________________________
____________________________________________________________________
2．Is it easy for destroyed nature to recover and why
____________________________________________________________________
____________________________________________________________________
1．multiply v．(使)大大增加，(使)倍增；繁殖；乘，乘以
①(教材原句)Loose on the island，they did what rabbits do best—they multiplied rapidly and began eating the native vegetation and digging holes，which caused soil erosion． ___________
②Though the boy is 10 years old，he doesn't know that 2 multiplied by 4 makes 8． ___________
③Our problems have multiplied since last year． ___________
2．appetite n． 胃口，食欲；强烈欲望
①(教材原句)Unfortunately，the cats subsequently developed an appetite for the birds，too． ___________
②Most children have an appetite for learning，which should be protected． ___________
1．(学会断句)Loose on the island，they did/what rabbits do best—they multiplied rapidly/and began eating the native vegetation/and digging holes，which caused soil erosion．
[分析] 此句中Loose on the island为形容词短语作________，逻辑主语为________；what引导________；which引导_______________。
[翻译] _____________________________________________________________
____________________________________________________________________
2．(学会断句)The next step is/to remove the last remaining invading species，and that's/where I come in—with my dogs．
[分析] 本句为复合句，where 引导______从句。
[翻译] _____________________________________________________________
____________________________________________________________________
____________________________________________________________________
1．(续写佳句)Strong winds and stormy seas have helped sculpt its long，thin shape．
2．(续写佳句)The green grass and bare rock of its landscape contrast dramatically，giving it a wild and natural beauty．
3．(续写佳句)While the cat's away，the mice will play．
Even after Macquarie Island became an official nature reserve in the 1970s，the rabbits remained out of control．Experts felt it necessary to come up with a plan to remove all the rabbits from the island．With this goal in mind，a virus was released onto the island．But although the virus caused the rabbit population to decrease from 130，000 to around 10，000，it also meant less food for the cats．The cats in consequence turned their attention—and their stomachs—back to the native birds，killing up to 60，000 each year．In the 1980s，traps and dogs were used to catch the cats．The last Macquarie Island cat was caught in 2000．
Period 2
Task 1 整体理解
1．A 2．①－⑥ DFAEBC
Task 2 细节理解
1－5 BDACC
Task 3 多维探究
略
Task 4 课文框架
①Introduction ②landscape ③an appetite for ④Results ⑤exploded ⑥remained ⑦decreased ⑧recovery
课文精粹
Ⅰ一词多义
1．①繁殖 ②乘，乘以 ③(使)大大增加，(使)倍增
2．①胃口，食欲 ②欲望
Ⅱ长难语句
1．分析：状语；they；宾语从句；非限制性定语从句
翻译：由于在岛上放任其生存，兔子做了自己最擅长的事——飞快地繁殖，它们开始吃当地植被并挖洞，造成了土壤侵蚀。
2．分析：表语
翻译：下一步是清除最后残存的入侵物种，这就是我的工作了——和我的狗一起。
1/1(共17张PPT)
Period 2
Unit 5 A delicate world
主题语境
人与自然—— 自然环境保护
1．What's the passage mainly about
A．Macquarie Island was saved from destruction．
B．The chaos caused on Macquarie Island by humans．
C．A funny story about what happened on Macquarie Island．
D．The ways in which an ecosystem can be protected．
课时练案 课文整体阅读(Understanding ideas)
√
2．Match the main idea with each paragraph．
①Para．1 A．The rabbit problem resulted in parakeets' dying out．
②Para．2 B．The rat，mouse and rabbit problem
made people realise that problems should be solved once and for all．
③Para．3 C．The author participated in a programme to tackle this very problem．
④Para．4 D．Native inhabitants on Macquarie Island were once in perfect harmony with their natural habitat．
⑤Para．5 E．People released a virus to kill rabbits and used traps and dogs to catch the cats．
⑥Para．6 F．Rats and mice brought to the island caused harm．
[答案] ①－⑥ DFAEBC
Read the passage carefully and choose the best answer．
1．What can we learn from the first paragraph
A．Macquarie Island is a UNESCO World Heritage Site because of its wild and natural beauty．
B．The green grass and bare rock of its landscape on Macquarie Island form its beauty．
C．Royal penguins，king penguins and elephant seals live in perfect harmony now．
D．The writer is standing on Macquarie Island enjoying its wild and natural beauty．
√
2．What is mentioned in the passage
A．When humans arrived on the island，they hunted the birds on the island．
B．So many rats and mice were brought to the island on purpose．
C．Rats and mice have been taking over the island，eating the birds' eggs so far．
D．Cats were introduced to the island to control the rats and mice．
√
3．What was the cause of soil erosion according to the passage
A．Rabbits were introduced to the island，multiplying rapidly，eating the native vegetation and digging holes．
B．Parakeets，native to the island，died out because of human activities．
C．The increasing number of cats led to more cats hunting the birds．
D．Rats and mice multiplied rapidly and dug holes．
√
4．Which method to remove the rabbits from the island was used effectively in the 1970s
A．A large number of dogs were released．
B．A large number of birds were released．
C．A virus was released onto the island．
D．A large number of cats were released．
√
5．What caused some land to collapse at the beginning of the 21st century
A．The departure of the cats from the island．
B．The increasing population of mice and rats．
C．The digging of the rabbits．
D．The death of a number of penguins．
√
1．What's your opinion about invading species
___________________________________________________________
[答案] 略
2．Is it easy for destroyed nature to recover and why
___________________________________________________________
[答案] 略
Introduction
landscape
an appetite for
Results
exploded
remained
decreased
recovery
1．multiply v．(使)大大增加，(使)倍增；繁殖；乘，乘以
①(教材原句)Loose on the island，they did what rabbits do best—they multiplied rapidly and began eating the native vegetation and digging holes，which caused soil erosion． ____
②Though the boy is 10 years old，he doesn't know that 2 multiplied by 4 makes 8． ________
③Our problems have multiplied since last year．
______________________
繁殖
乘，乘以
(使)大大增加，(使)倍增
2．appetite n．胃口，食欲；强烈欲望
①(教材原句)Unfortunately，the cats subsequently developed an appetite for the birds，too． __________
②Most children have an appetite for learning，which should be protected． ____
胃口，食欲
欲望
1．(学会断句)Loose on the island，they did/what rabbits do best—they multiplied rapidly/and began eating the native vegetation/and digging holes，which caused soil erosion．
[分析] 此句中Loose on the island为形容词短语作____，逻辑主语为____；what引导________；which引导________________。
[翻译] ___________________________________________________
___________________________________________________________
状语
they
宾语从句
非限制性定语从句
由于在岛上放任其生存，兔子做了自己最擅长的事——飞快地繁殖，它们开始吃当地植被并挖洞，造成了土壤侵蚀。
2．(学会断句)The next step is/to remove the last remaining invading species，and that's/where I come in—with my dogs．
[分析] 本句为复合句，where 引导____从句。
[翻译] ___________________________________________________
__________________________________________________________
下一步是清除最后残存的入侵物种，这就是我的工作了
——和我的狗一起。
表语
1．(续写佳句)Strong winds and stormy seas have helped sculpt its long，thin shape．
2．(续写佳句)The green grass and bare rock of its landscape contrast dramatically，giving it a wild and natural beauty．
3．(续写佳句)While the cat's away，the mice will play．
Even after Macquarie Island became an official nature reserve in the 1970s，the rabbits remained out of control．Experts felt it necessary to come up with a plan to remove all the rabbits from the island．With this goal in mind，a virus was released onto the island．But although the virus caused the rabbit population to decrease from 130，000 to around 10，000，it also meant less food for the cats．The cats in consequence turned their attention—and their stomachs—back to the native birds，killing up to 60，000 each year．In the 1980s，traps and dogs were used to catch the cats．The last Macquarie Island cat was caught in 2000．
THANKS
