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外研版（2019）选择性必修第二册 Unit 5 A Delicate World 单元回顾
I. 知识点回顾
一、词性变形
1. destroy v.破坏 → ＿＿＿＿＿＿＿＿ n.破坏；毁坏 → ＿＿＿＿＿＿＿＿ adj.破坏性的
2. endanger v.使遭受危险 → ＿＿＿＿＿＿＿＿ adj.濒危的
3. drama n.戏剧 → ＿＿＿＿＿＿＿＿ adj.巨大的；戏剧性的 → ＿＿＿＿＿＿＿＿ adv.显著地
4. conserve v.保护；节约 → ＿＿＿＿＿＿＿＿ n.保护；管理
5. subsequent adj.随后的 → ＿＿＿＿＿＿＿＿ adv.随后；接着
6. rapid adj.迅速的 → ＿＿＿＿＿＿＿＿ adv.迅速地
7. immune adj.有免疫力的 → ＿＿＿＿＿＿＿＿ n.免疫力
8. ecology n.生态 → ＿＿＿＿＿＿＿＿ adj.生态的 → ＿＿＿＿＿＿＿＿ n.生态学家
9. devastate v.严重破坏；摧毁 → ＿＿＿＿＿＿＿＿ adj.极为震惊的 → ＿＿＿＿＿＿＿＿ adj.毁灭性的
10. introduce v.引进；介绍 → ＿＿＿＿＿＿＿＿ n.引进；介绍
11. explode v.爆炸；激增 → ＿＿＿＿＿＿＿＿ n.爆炸；激增
12. weigh v.重量为 → ＿＿＿＿＿＿＿＿ n.重量
13. harmony n.和谐 → ＿＿＿＿＿＿＿＿ adj.和谐的 → ＿＿＿＿＿＿＿＿ adv.和谐地
14. fund v.资助 → ＿＿＿＿＿＿＿＿ n.资金；拨款
prehensive adj.全面的 → ＿＿＿＿＿＿＿＿ adv.全面地
16. remove v.清除；移走 → ＿＿＿＿＿＿＿＿ n.清除；去除
17. invade v.入侵 → ＿＿＿＿＿＿＿＿ n.入侵 → ＿＿＿＿＿＿＿＿ adj.入侵的
18. exist v.生存；存在 → ＿＿＿＿＿＿＿＿ n.生存；存在
19. harm v.& n.伤害 → ＿＿＿＿＿＿＿＿ adj.有害的 → ＿＿＿＿＿＿＿＿ adj.无害的
20. survive v.幸存 → ＿＿＿＿＿＿＿＿ n.生存；幸存 → ＿＿＿＿＿＿＿＿ n.幸存者
二、重点短语
1. ＿＿＿＿＿＿＿＿ 与……和谐相处
2. ＿＿＿＿＿＿＿＿ 养成对……的爱好；喜欢上……
3. ＿＿＿＿＿＿＿＿ 被引进到
4. ＿＿＿＿＿＿＿＿ 失去控制
5. ＿＿＿＿＿＿＿＿ 把……从……清除
6. ＿＿＿＿＿＿＿＿ 出于对……的考虑；考虑到……
7. ＿＿＿＿＿＿＿＿ 从……减少到……
8. ＿＿＿＿＿＿＿＿ 因此；结果
9. ＿＿＿＿＿＿＿＿ 结果是；原来是
10. ＿＿＿＿＿＿＿＿ 大量的
11. ＿＿＿＿＿＿＿＿ 一劳永逸地；彻底地
12. ＿＿＿＿＿＿＿＿ 每一个（毫无例外）
13. ＿＿＿＿＿＿＿＿ 认为应该为……做……
14. ＿＿＿＿＿＿＿＿ 分解；垮掉；出故障
15. ＿＿＿＿＿＿＿＿ 代表……
16. ＿＿＿＿＿＿＿＿ 与……融为一体；与……完全一致
17. ＿＿＿＿＿＿＿＿ 与……共存
18. ＿＿＿＿＿＿＿＿ 作为回报
19. ＿＿＿＿＿＿＿＿ 赢得一席之地
20. ＿＿＿＿＿＿＿＿ 因……而闻名
三、重点句型
【规则】never、seldom、little、hardly、not until、under no circumstances 等表示否定意义的词或短语置于句首时，句子须用部分倒装，即将助动词、情态动词或 be 动词提到主语之前；not until 引导的从句置于句首时，主句倒装，从句不倒装。
【例句】Never before ______(have) the island's ecology been damaged so seriously. 这座岛的生态以前从未遭受过如此严重的破坏。Not until every last pest was removed did the island begin to recover. 直到最后一个害兽被清除，海岛才开始恢复。
【规则】“only + 状语（副词、介词短语或状语从句）”位于句首时，主句用部分倒装；“so + 助动词 + 主语”表示前面所述的肯定情况也适用于另一主语，意为“……也一样”；“neither/nor + 助动词 + 主语”表示“……也不”。
【例句】Only when humans live in harmony with nature ______(will) the planet have a bright future. 只有当人类与自然和谐相处，地球才会有美好的未来。He has never seen a sea elephant, and neither ______(have) I. 他从未见过海象，我也没有。
【规则】“so + 形容词/副词”或“such + 名词”置于句首表示强调时，主句用部分倒装；as/though 引导让步状语从句时，须把表语、状语或动词原形提到 as/though 之前（名词提前时其前冠词省略）。
【例句】So rapid ______(be) the spread of the disease that the rabbit population crashed within months. 这种疾病传播得如此之快，以至于兔群在几个月内就崩溃了。Young as he is, he already knows a lot about ecological balance. 尽管年纪小，他却已经懂得很多生态平衡的知识。
【规则】本单元课文重点句式：nor 置于句首延续前一句的否定意义，句子用部分倒装，意为“（某人）也不会……”。课文用该句式描写人们想到麦夸里岛（Macquarie Island）时，也不会想不到岛上原有物种曾与自然栖息地长久和谐共存。
【例句】Nor ______(would) they fail to imagine how its native inhabitants existed in perfect harmony with their natural habitat for thousands of years. 他们也不会想不到，千百年来岛上原有的物种一直与它们的自然栖息地完美和谐地共存。
II. 牛刀小试
一、用所给单词适当形式填空
1. The fire caused the ______(destroy) of three nature reserves last summer.
2. Sea turtles are now regarded as an ______(endanger) species.
3. The number of visitors to the reserve dropped ______(dramatic) last winter.
4. More nature reserves have been set up for wildlife ______(conserve).
5. ______(subsequent), the government provided more funding for the project.
6. The rabbits multiplied ______(rapid) because they had no natural enemies.
7. The recovered pandas have developed strong ______(immune) to the disease.
8. Plastic waste has broken the ______(ecology) balance of the bay.
9. She felt ______(devastate) when she learned that the wetland would be drained.
10. The ______(introduce) of foreign species often upsets the local food chain.
11. Scientists were worried about the ______(explode) in the mice population.
12. Without enough ______(fund), the protection campaign could hardly continue.
二、用所给动词的适当形式填空
1. In the past five years, the number of seals on the island ______(increase) steadily.
2. By the time the researchers arrived, most of the rats ______(disappear) from the shore.
3. The pests ______(bring) to the island by passing ships long ago.
4. Scientists keep monitoring the ecosystem, hoping that it ______(return) to normal soon.
5. The virus spread quickly among the rabbits, ______(leave) only the immune ones alive.
6. The experts suggested ______(set) more traps along the coast.
7. If the funding ______(stop) suddenly, the whole campaign would break down.
8. ______(trap) every last rat is hard work, but the team never gives up.
9. The ecologists ______(work) on the island since 2014, and the results are encouraging.
10. We owe it to future generations ______(protect) the delicate world we live in.
三、单元语法：倒装（Inversion）
（一）在否定词前置、only 及 so/neither 倒装句中填入助动词或动词的适当形式
1. Never ______(have) I seen a species multiply so dramatically.
2. Not until the last rat was trapped ______(do) the team celebrate their success.
3. Little ______(do) people realize how harmful plastic waste is to sea animals.
4. Hardly ______(have) the poison bait been dropped when the rats began to die.
5. Only in this way ______(can) we remove the pests once and for all.
6. Only when humans live in harmony with nature ______(will) the planet have a future.
7. He has never visited the island, and neither ______(have) I.
8. So well ______(do) the plan work that every last pest was removed.
（二）倒装综合填空
1. On the rocky shore ______(stand) hundreds of noisy penguins.
2. In the cold waters nearby ______(live) many rare fish and seals.
3. South of the beach ______(lie) a small research station.
4. Such ______(be) the success of the campaign that the pests were removed once and for all.
5. Young ______ he is, the boy already knows a lot about endangered animals.
6. ______(be) I the manager of the reserve, I would set up more camera traps.
7. Try ______ you may, some hidden rats are really hard to catch.
8. So rapidly ______(do) the rabbits multiply that the grass almost disappeared.
（三）语篇语法填空（倒装与自然保护主题语篇）
Last month, a comprehensive campaign ______(1)(launch) in our city to protect the wetland, ______(2)(lie) in the south of the city, where many rare birds spend the winter. The wetland, which attracts thousands of birds each year, had been seriously polluted by plastic bags and food waste. Not until volunteers cleared the rubbish ______(3) people realise how much harm plastic waste had done. So serious ______(4)(be) the pollution that some fish and water plants had almost disappeared. Hardly ______(5) the news spread when hundreds of citizens signed up as volunteers. Experts explained that only by removing the waste and ______(6)(stop) pollution ______(7)(can) the wetland return to its natural balance. Now the water is much ______(8)(clear), birds are booming, ______(9) the number of visitors is increasing ______(10)(rapid).
四、课文语法填空
Macquarie Island, ______(1)(lie) roughly halfway between Australia and Antarctica, was once a paradise for wildlife. For thousands of years, its native inhabitants ______(2)(exist) in perfect harmony with their natural habitat. However, the balance was broken when sailors ______(3)(introduce) rats, and later rabbits, to the island. With no natural enemies there, the pests multiplied ______(4)(dramatic). The rabbits developed a huge appetite ______(5) the vegetation, while the mice ate almost anything ______(6) they could find. So ______(7)(devastate) was the damage that the island's plants and sea bird habitats collapsed. Experts realised that the invaders had to be removed once and for ______(8). Helicopters dropped poisoned bait, traps were set, and every last pest was cleared. Only then ______(9)(do) the island begin to recover. Today species are booming again, ______(10) proves that humans can repair the harm they have done.
外研版（2019）选择性必修第二册 Unit 5 参考答案
I. 知识点回顾
一、词性变形
1. destroy v.破坏 → destruction n.破坏；毁坏 → destructive adj.破坏性的
2. endanger v.使遭受危险 → endangered adj.濒危的
3. drama n.戏剧 → dramatic adj.巨大的；戏剧性的 → dramatically adv.显著地
4. conserve v.保护；节约 → conservation n.保护；管理
5. subsequent adj.随后的 → subsequently adv.随后；接着
6. rapid adj.迅速的 → rapidly adv.迅速地
7. immune adj.有免疫力的 → immunity n.免疫力
8. ecology n.生态 → ecological adj.生态的 → ecologist n.生态学家
9. devastate v.严重破坏；摧毁 → devastated adj.极为震惊的 → devastating adj.毁灭性的
10. introduce v.引进；介绍 → introduction n.引进；介绍
11. explode v.爆炸；激增 → explosion n.爆炸；激增
12. weigh v.重量为 → weight n.重量
13. harmony n.和谐 → harmonious adj.和谐的 → harmoniously adv.和谐地
14. fund v.资助 → funding n.资金；拨款
prehensive adj.全面的 → comprehensively adv.全面地
16. remove v.清除；移走 → removal n.清除；去除
17. invade v.入侵 → invasion n.入侵 → invasive adj.入侵的
18. exist v.生存；存在 → existence n.生存；存在
19. harm v.& n.伤害 → harmful adj.有害的 → harmless adj.无害的
20. survive v.幸存 → survival n.生存；幸存 → survivor n.幸存者
二、重点短语
1. in harmony with 与……和谐相处
2. develop an appetite for 养成对……的爱好；喜欢上……
3. be introduced to 被引进到
4. out of control 失去控制
5. remove ... from ... 把……从……清除
6. with ... in mind 出于对……的考虑；考虑到……
7. decrease from ... to ... 从……减少到……
8. in consequence 因此；结果
9. turn out 结果是；原来是
10. a substantial number of 大量的
11. once and for all 一劳永逸地；彻底地
12. every last one 每一个（毫无例外）
13. owe it to ... to do ... 认为应该为……做……
14. break down 分解；垮掉；出故障
15. on behalf of 代表……
16. be at one with 与……融为一体；与……完全一致
17. coexist with 与……共存
18. in return 作为回报
19. earn one's place 赢得一席之地
20. be renowned for 因……而闻名
三、重点句型
1.【例句】Never before had the island's ecology been damaged so seriously. 这座岛的生态以前从未遭受过如此严重的破坏。Not until every last pest was removed did the island begin to recover. 直到最后一个害兽被清除，海岛才开始恢复。
2.【例句】Only when humans live in harmony with nature will the planet have a bright future. 只有当人类与自然和谐相处，地球才会有美好的未来。He has never seen a sea elephant, and neither have I. 他从未见过海象，我也没有。
3.【例句】So rapid was the spread of the disease that the rabbit population crashed within months. 这种疾病传播得如此之快，以至于兔群在几个月内就崩溃了。Young as he is, he already knows a lot about ecological balance. 尽管年纪小，他却已经懂得很多生态平衡的知识。
4.【例句】Nor would they fail to imagine how its native inhabitants existed in perfect harmony with their natural habitat for thousands of years. 他们也不会想不到，千百年来岛上原有的物种一直与它们的自然栖息地完美和谐地共存。
II. 牛刀小试
一、用所给单词适当形式填空
1.destruction 2.endangered 3.dramatically 4.conservation 5.Subsequently 6.rapidly 7.immunity 8.ecological 9.devastated 10.introduction 11.explosion 12.funding
二、用所给动词的适当形式填空
1.has increased 2.had disappeared 3.were brought 4.will return 5.leaving 6.setting 7.stopped 8.Trapping 9.have worked（have been working 亦可） 10.to protect
三、单元语法：倒装（Inversion）
（一）在否定词前置、only 及 so/neither 倒装句中填入助动词或动词的适当形式
1.have 2.did 3.do 4.had 5.can 6.will 7.have 8.did
（二）倒装综合填空
1.stand 2.live 3.lies 4.was 5.as 6.Were 7.as 8.did
（三）语篇语法填空（倒装与自然保护主题语篇）
1.was launched 2.lying 3.did 4.was 5.had 6.stopping 7.could（can 亦可） 8.clearer 9.and 10.rapidly
四、课文语法填空
1.lying 2.existed 3.introduced 4.dramatically 5.for 6.that 7.devastating 8.all 9.did 10.which

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