Unit 5 Section Ⅲ Using language-【新课程能力培养】2025-2026学年高中英语选择性必修第二册学习手册（外研版）

Unit 5 A delicate world SectionⅢ Using language 1.观察发现和理解t作形式宾语的用法，并会正确运用。 2.学习并运用有关食物链的表达，了解生态系统中各食物链中不同物种之间的关系，认识 学习目标 保护食物链平衡的重要性。 3.通过听说练习，能够运用所学表达自己的观点，同时学会表达质疑和回应质疑。 必备 单词 dissolve nutrient worm 知识 语法t作形式宾语 关键能力 听、说 He made it known to everyone that he 重点语法 was right.他让每个人都明白他是对的。 t代表不定式、宾语从句或动名词。这：国牛刀小试 里再补充几种特殊情况： ①我认为玩电脑游戏没好处。(t作形式宾 (I)动词+it+that从句，常见于take,have, 语)。 put等动词之后。 I take it that he will finish the task by himself.我认为他能自已完成这项任务。 (2)动词+it+when/if从句。 ②我认为期望任务在一周内完成是不切实 We really appreciate it if you could do us 际的。 a favour.如果您能帮助我们，我们会很 感激。 (3)动词+it+介词短语+hat从句，常见于 owe it to sb,take it for granted等结构 ③我能取得那么大的成绩，该归功于你。 中。 We owe it to you that we are still alive. 多亏有你，我们现在才仍然活着。 (4)动词+介词+it+hat从句，常见于look ④网络使我们沟通更方便了。 to,depend on,insist on,stick to,answer for等结构中。 He insisted on it that he was innocent. 他坚持说自己是无辜的。 (5)动词+it+动词过去分词。 学(63 高中英语选择性必修第二册（外研版） 话题词块 consumers. (5)break down分解；瓦解 食物链是生态系统中很重要的一部分。 Decomposers break down animal waste 根据Activity5填写下列话题词块。 and the remains of living things. 1. (生产者)absorb wa- 写牛刀小试 ter dissolved nutrients from the soil.They also The living things are 1. con- make their own food by 2. (吸 nected with each other by the food they eat. 收光)from the sun.3. (初级 Secondary consumers 2. primary 消费者)rely on vegetation to4. consumers,primary consumers 3. (供能).They5. (以绿色植物 producers,and producers 4. light 为食).6. (次级消费者)prey from the sun,and water and dissolved nutri- on primary consumers,as well as eating other ents from the soil,which are provided by de- animal matter.7. (分解者) composers. break down dead animal and vegetable matter 精听练习 into nutrients.The dissolved chemicals are then released back into the food chain,8. 完成教材Activity5&6后，完成以下 (从而被生产者使用)。 细节填空练习。 重点知识 Meg:Hey,Ollie,have you heard that the bee population is 1. 食物链 Ollie:No,I haven't.But,thinking about it,I 你都知道哪些跟“食物链”有关的单词 2. ever see bees these days. 和短语？ When I was little,they seemed to be (1)absorb吸收(take in) 3. Plants absorb water,and take in nutrients Meg:If bees 4. humans will die from the soil and energy from the sun. out too. (2)rely on依赖；依靠 Ollie:What?!You must be 5. Insects rely on the producers to provide don't believe it! food. Meg:It's a fact!I watched a 6. (3)feed on以…为食物 documentary all about it the other Secondary consumers feed on primary evening.Bees are very important to our consumers. 7. (4)prey on捕食；捕猎 Ollie:How can that be possible?Humans won't Secondary consumers prey on primary die out just because there's no honey! 64)学 Unit 5 A delicate world Meg:Bees don't just make honey.Don't forget wouldn't have enough to eat. that bees are also responsible for polli- Ollie:Seriously?That's scary!But looking on nating plants.Without them,8. the bright side,there are millions and would be unable to reproduce. millions of bees.They're not going to Ollie:But surely there are other ways of die out any time soon. getting these crops to reproduce.Does it Meg:I'm afraid you're wrong.The bee popu- have to be bees? lation is declining very quickly.Accor- Meg:Well,there are other 9. that ding to statistics,bee numbers in the pollinate plants,but it's unlikely that US have fallen 12. 17%in they would be able to fully compensate just one year. for the loss of bees.Bees are responsi- Ollie:Gosh!What caused that? ble for pollinating about 70%of the Meg:A combination of things,really,but it's species of crops. mainly due to damage to their 13. Ollie:Are you sure about that 10. 2 caused by pesticides and 14. It sounds rather exaggerated. Meg:Watch the documentary and check it out Ollie:So human activity is the main cause? for yourself if you don't believe me. Meg:That's right. Without bees,numerous plant species Ollie:Well,in that case,we'd better do would 11. Animals that live something before it's too late. on the crops would die out,and we 学(65高中英语选择性必修第二册（外研版） mind 15.in consequence 16.as the saying goes 17.they developed an immunity to the virus 18.needed solving once and for all 19.remove the last remaining in- vading species 20.owe it to the island to give it a happy ending 重点知识 1.1why/the reason why you failed to achieve your goal 2failed in chemistry 2.it;to clean 3.Ddeveloped an interest 2has developed the habit of reading 3have developed an immunity Section lll Using language 重点语法 DI consider it no good playing computer games. 2I think it impractical to expect the task to be finished in a week.3I owe it to you that I can make such a great achievement.4The Internet makes it convenient for us to communicate with each other. 话题词块 1.Producers 2.absorbing light 3.Primary con- sumers 4.provide energy 5.feed on green plants 6.Secondary consumers 7.Decomposers 8.to be used by producers 重点知识 1.closely 2.prey on 3.feed on 4.absorb 精听练习 1.declining 2.hardly 3.everywhere 4.die out 5.kidding 6.nature 7.food supply 8.crops 9.in- sects 10.data 11.die out 12.by 13.habitats 14.climate change Unit 6 Section I Starting out 精听练习 1.from all over the world 2.in the hope of making new discoveries 3.more than 20 countries 4.endure its extreme weather 5.usually around freezing 6.wear spe- cial clothes for protection 7.from calm to white-out in minutes 8.have a survival bag 9.a tent for two people 94 Section IV Developing ideas 文脉梳理 1.Because of the naturally-balanced environment and its being one of the rare locations where scientists can con- duct their research. 2.The region rises from about 400 metres to over 3.000 metres above sea level,giving it the name the “Roof of Central China”. 3.To show that local people live and work in harmo- ny with nature,who take things from nature without caus- ing damage. 重点知识 2.①heated②invited③given;:it④playing 3.brave the elements 4.to coexist Section V Presenting ideas 例文鉴赏 Opening:(1)greeting (2)introduction to the topic:Fanjing Mountain. Reasons for selection:The main reason for its inclu- sion is its biological diversity,with approximately 50 en- dangered plant and animal species found in its protected area. Other information:(1)It is the first national nature reserves in China.Fanjing Mountain represents one of the country's greatest achievements in environmental protec- tion. (2)It is also renowned for its breathtaking scenery as a summer resort. Conclusion:It is worthy of its place on the UNESCO World Heritage List. Q&A:… Survival 10.spend the night outdoors 11.unusually long days and nights 12.rises once and sets many months later 13.the scientists'body clocks 14.falls to around 1,000 in winter 15.extreme conditions 16.grow fresh produce in Antarctica 17.have a varied diet 18.without eating any fresh fruit or vegetables 19.a variety of activities and en- tertainment 20.finding enough personal space