UNIT 3 Section Ⅲ Grammar-【金版新学案】2025-2026学年新教材高二英语选择性必修第一册同步课堂高效讲义教师用书word（北师大版）

本讲义聚焦高中英语限制性和非限制性定语从句核心知识点，系统梳理定语从句定义、先行词及关系词分类，通过对比两者在作用、形式、先行词、关系词使用及翻译上的区别，结合which和as引导非限制性定语从句的异同，构建从基础概念到特殊用法的完整学习支架。 该资料以“语法串烧”语篇故事整合例句，如Mary帮助迷路男孩的情境，提供语境化输入提升语言能力。“我的发现”环节引导学生自主分析从句类型，培养思维品质。分层练习涵盖填空、写作及语篇应用，结合高考真题实例，课中辅助教师高效授课，课后助力学生巩固知识、查漏补缺，强化学习能力。

Section Ⅲ　Grammar 限制性和非限制性定语从句 语法串烧 我的发现 　　Mary，whose father is our English teacher①，is a lovely and kind girl that/who is admired by us all②.She is also warm-hearted—helps those who are in trouble③.Yesterday，she went to the library where she often borrowed books④.On her way，she found a little boy who/that was lost，crying sadly⑤.He said he got separated with his mother，who was busy buying something⑥.Mary comforted him and accompanied him until his mother found them，which made both of them thankful to her⑦. 1.①②③⑤⑥⑦为关系代词引导的定语从句，其中①⑥⑦为非限制性定语从句，②③⑤为限制性定语从句； 2.④为关系副词引导的限制性定语从句。 学生用书⬇第102页 　　在复合句中用来限制、描绘或说明主句中某一名词或代词而起限定作用的从句叫作定语从句；定语从句所修饰的名词或代词叫作先行词；引导定语从句的词叫作关系词。按照关系词在定语从句中所作的成分，可将关系词分为关系代词和关系副词。根据定语从句与先行词之间关系的密切程度，定语从句可以分为限制性定语从句与非限制性定语从句。 知识点一　定语从句的关系词 关系词在定语 从句中的作用 ①连接主句和从句； ②指代先行词； ③在从句中充当一定的句子成分。 关系词的分类 ①关系代词 that，which，who，whom，whose，as等； ②关系副词 when，where，why 等。 [巧学活用1]——用关系代词或关系副词填空 1.We wrote a letter to our father，telling him all the things that we wanted. 2.She got off the bus，laughing and chatting with her friends who were walking beside her. 3.There are 20 students in the classroom，most of whom are diligent. 4.When deeply involved in reading，which he often was，he would ignore the noise around him. 5.This is the month when we will have a big exam. 知识点二　限制性定语从句与非限制性定语从句的区别 1.作用不同 (1)限制性定语从句对被修饰的先行词有限定制约的作用，使该词的含义更具体、 更明确。限制性定语从句不能被省略，否则句意就不完整。 Do you remember the boy who played basketball yesterday？ 你还记得昨天打篮球的那个男孩吗？ (2)非限制性定语从句与先行词关系不十分密切，只是对其作一些附加说明，不起限定制约作用。如果将非限制性定语从句省去，主句的意义仍然完整。 Mr.Wang，who gave a speech yesterday，is an expert in the hospital. 王先生是这家医院的一位专家，昨天做了一个演讲。 2.形式不同 限制性定语从句因与先行词关系密切，所以不可以用逗号将其与主句隔开；而非限制性定语从句与先行词关系不十分密切，所以可以用逗号将其与主句隔开。 This is the place where he used to live. 这是他曾经居住的地方。 They went back to London，which was their hometown. 他们回到了伦敦，那里是他们的家乡。 3.先行词不同 大多数限制性定语从句和非限制性定语从句的先行词往往为某一个词或短语，而特殊情况下非限制性定语从句的先行词也可为整个主句，此时非限制性定语从句常由which 引导。 A five-year-old boy can speak two foreign languages，which surprises all the people present. 一个五岁的男孩会说两门外语，这让在场的人都很吃惊。 4.关系词的使用情况不同 (1)that，why不可用于引导非限制性定语从句，而要用which代替that，for which代替why。 He gave his mother a new mobile phone for her birthday，that pleased her a lot.(×) He gave his mother a new mobile phone for her birthday，which pleased her a lot.(√) 学生用书⬇第103页 【温馨提示】　值得注意的是，不少同学误认为只有which 才能引导非限制性定语从句，这个观点是不正确的。使用非限制性定语从句时，如果先行词指人，则用who，whom或whose引导；先行词指物可用which引导；先行词表时间或地点且在从句中作时间状语或地点状语时，可用when，where引导。 We'll graduate in July，when we will be free. 我们将于七月份毕业，那时我们就自由了。 Last Sunday they reached Nanjing，where a conference was to be held. 他们上周日到达了南京，有个会议要在那里举行。 (2)关系代词替代情况不同 关系代词whom在限制性定语从句中作宾语时可用who代替，但whom在非限制性定语从句中作宾语时不可用who来代替。 This is the girl (whom/who) I met in the street. 这是我在街上遇到的那个女孩。 This is Jack，whom you haven't met before. 这是杰克，你以前没见过。 【温馨提示】　在限制性定语从句中，先行词指人时，可用that 代替who/whom，但在非限制性定语从句中先行词指人时，不可用that 代替who/whom。 She has a sister，that is a teacher.(×) She has a sister，who is a teacher.(√) (3)关系代词省略情况不同 关系代词在限制性定语从句中作宾语时可以省去，非限制性定语从句的所有关系词均不可省略。 This is the book (which/that) he lost yesterday. 这就是他昨天丢的那本书。 The book，which he lost yesterday，has been found. 他昨天丢了这本书，但现在已找到了。 5.翻译顺序不同 含限制性定语从句的句子先译从句，后译先行词，即 将从句放在先行词前译；而非限制性定语从句的句子一般先译先行词，后译从句，形成两个并列分句。 Lucy has an elder brother who works in a hospital. 露西有一个在医院工作的哥哥。 Lucy has an elder brother，who works in a hospital. 露西有个哥哥，他在医院工作。 [巧学活用2]——用关系代词或关系副词填空 1.(2022·全国甲卷)On the 1，100-kilometer journey，the man Cao Shengkang，who lost his eyesight at the age of eight in a car accident，crossed 40 cities and counties in three provinces. 2.(2022·新高考Ⅰ卷)The GPNP is intended to provide stronger protection for all the species that live within the Giant Panda Range and significantly improve the health of the ecosystem in the area. 3.The exhibitions，which presented the achievements of modern technology，aimed at promoting international cooperation. 4.All the classmates envy this group，where the members are helping each other whole-heartedly. 知识点三　which和as引导非限制性定语从句的异同 1.相同点 两者引导非限制性定语从句时，可指代主句中的部分或整个句子的内容，在从句中作主语、宾语或表语，位于主句之后，有时可互换。 The meeting was put off，as/which was exactly what we wanted. 会议被推迟了，这正是我们所希望的。 学生用书⬇第104页 2.不同点 (1)as可以放在主句前或主句后，也可插入主句之中；而which引导的非限制性定语从句只能位于主句之后。 As is known to all，fish can't live without water. 众所周知，离开了水，鱼儿无法生存。 She told me she won the match，which was a lie. 她告诉我她赢得了比赛，这是一个谎言。 (2)as常用“正如”含义，常用的结构有as we know/as is known to all(众所周知)；as often happens(正如常发生的那样)；as is often the case(情况常常如此)；as we all can see(正如我们看到的)；as is announced/expected/imagined/mentioned/said/shown/reported(正如所宣布的/预期的/想象的/提到的/所说的/所示的/报道的)；as the saying goes (俗话说)等。这些结构常放在句首，偶尔也可以放在句中或句末。 As is known to all，China is a developing country. 众所周知，中国是一个发展中国家。 As the saying goes，“All roads lead to Rome.” 俗话说：“条条大路通罗马。” [巧学活用3]——选词填空(as，which) 1.The number of tourists，as is announced，has increased by 20 percent during the holiday. 2.She passed the exam with flying colors，which makes her parents very proud. 3.As everyone realizes，learning a new language requires a lot of practice. 课时测评16　Section Ⅲ　Grammar (时间：60分钟　满分：100分) (本栏目内容，在学生用书中以独立形式分册装订！) [语境基础练] 维度一　用适当的关系代词或关系副词填空(每小题1分，共9分) 1.She missed the train，which was really annoying. 2.He is lost in thought，as is usual with him. 3.The bike which/that was stolen yesterday was a birthday gift from my parents. 4.The poem，whose theme is about love and loss，is very touching. 5.The clean water without which we can't survive is becoming scarce. 6.As is known to all，hard work is the key to success. 7.Mr Johnson，who is very kind-hearted，is someone you can turn to. 8.Mr Green，who has rich experience in management，will take charge of the new project. 9.Every member can contribute to the team，which makes it possible for us to achieve our goals. 维度二　语法与写作(每小题3分，共12分) 1.欢迎任何有兴趣的学生参加。 Any student who is interested is welcome to participate. 2.作为一名学生，你每天早晨应当做的第一件事就是制定适当的计划。 As a student，the first thing that you should do every morning is to make a proper plan. 3.只要你坚持下去，你梦想成真的那一刻一定会到来。 So long as you stick to it，the moment when your dream comes true will definitely come. 4.这次文化活动将在艺术大厦举行，为期一周。 This cultural event is scheduled to be held in the Art Building，which will last for a week. 维度三　语法与语篇(每小题1分，共7分) 　　用适当的关系代词或关系副词填空 　　My sister is a college student，1.who is studying in Peking University.I will never forget the days 2.when I visited this university last summer.She showed me around to see the various facilities，including the library 3.which attracts me very much.There are more than ten thousand college students，all of 4.whom are fighting for their promising future，5.which I have never thought before.She is a model from 6.whom I will learn.I am determined to study hard to repay my parents and teachers 7.who are working hard for me. [素能提升练] Ⅰ.阅读理解(每小题4分，共32分) A (2025·河南南阳一中高二期中) While electronics can make life easier and more entertaining，the devices aren't easy on the environment. As newer，more advanced devices come out，huge amounts of old electronics are thrown away，instead of being recycled.These items often end up in landfills，where the chemicals inside them may be a danger to the environment.Electronics can contain noxious materials like lead or mercury (汞).If these materials get into the ground or water，the pollution can cause serious problems. Most electronics require rare metals.These metals must be mined (开采) from the earth.Often the mining process creates serious pollution.In many cases，these materials are getting harder and harder to find.If more e-waste was recycled，many of those rare metals could be taken from old electronic devices instead of being mined.A group known as WEEE (Waste Electrical and Electronic Equipment Forum) is trying to make people more aware of the problems of e-waste.WEEE says that the rare metals and other materials that get thrown out as e-waste every year are worth about $57 billion. Recently，WEEE asked researchers from the United Nations to study a kind of e-waste that's often not noticed because people don't consider the items to be electronics.The WEEE calls this type “invisible” e-waste. The surprising type leading the invisible e-waste group was toys.Worldwide，about 7.3 billion electronic toys are thrown away each year.In all，toys make up about 35％ of invisible e-waste.But the problem is far larger than just toys.The report also shows that other everyday items like alarms，power tools，and computer cables (电缆) are also big sources of invisible e-waste.The UN report says that 36％ of the world's invisible e-waste comes from these three types. WEEE is hoping that as more people and governments become aware of e-waste，they will make a much greater effort to make sure electronics get reused or recycled. 　　语篇解读　本文是一篇说明文。文章主要介绍了电子垃圾的危害和隐形电子垃圾的分类，呼吁人们对电子垃圾进行再利用和回收，从而减少电子垃圾对环境产生的危害。 1.What does the underlined word “noxious” mean in Paragraph 2？ A.Harmful.　　　　　 B.Critical. C.Powerful. D.Abnormal. 答案：A 解析：词义猜测题。根据画线词后文“If these materials get into the ground or water，the pollution can cause serious problems.”可知，此处指电子产品中含有像铅或者汞这样的有毒材料，一旦这些材料进入到土地里或者水里，就会造成严重的污染问题。故画线词意为“有毒的；有害的”，harmful与其同义。故选A项。 2.How can we reduce the impact of rare metal mining on the environment？ A.Looking for alternative options. B.Recycling rare metals from e-waste. C.Buying rare metals from other countries. D.Reducing the production of electronic devices. 答案：B 解析：推理判断题。根据第三段“If more e-waste was recycled，many of those rare metals could be taken from old electronic devices instead of being mined.”可推知，可以从电子垃圾中回收这些金属来减少稀有金属开采对环境的影响。故选B项。 3.Which items account for the highest percentage of “invisible” e-waste？ A.Toys. B.Alarms. C.Power tools. D.Computer cables. 答案：A 解析：细节理解题。根据第五段“The surprising type leading the invisible e-waste group was toys.”可知，玩具是隐形电子垃圾中占比最大的一类产品。故选A项。 4.What is WEEE's hope for the future of e-waste？ A.That e-waste will soon no longer be a problem. B.A global law on electronic devices will be issued. C.E-waste will be burned to avoid damage to the environment. D.Everyone will play a part in the reusing and recycling of electronics. 答案：D 解析：细节理解题。根据最后一段内容可知，WEEE希望每个人都会在电子产品的再利用和回收中发挥作用。故选D项。 B (2025·福建厦门高二上期末) 　　When Joe Gray coppiced (修剪) a spot of woodland on his Essex farm，he noticed that a deserted pond (池塘) sprang back into life after it was exposed to sunlight. Since then，he and his wife，Emma，have restored 11 dead ponds on their regenerative farm.Ponds that were shaded over or overgrown by bushes have been opened up to sunlight and dug out，and are now booming with rare water plants and insects—also providing food and water for birds and bats. This pond restoration effort has been motivated by the Essex lost ponds project.Volunteers have identified 17，200 ponds across the county，of which 10，400 have disappeared，mostly because of agricultural development in the 20th century.When tractors replaced horses，there was less need for ponds for livestock (牲畜) and when fields were enlarged，many ponds were filled in. “The dragonflies，the beetles，the birds flying overhead—it's just pumping out nature into the farmed landscape，”says Mark Nowers，a wild bird conservation adviser in Essex.Wild birds need sufficient and accessible seed-rich habitat and thick bushes to nest in，but are also assisted by restored ponds because they require access to fresh water close to nesting sites. Ponds take little or no land out of food production.The Grays now devote 40％ of their land to wildlife-restoring projects but grow as much food as before，simply because they are now using only the most productive parts of their land.Their regenerative farming—not ploughing，and thereby boosting soil health and wider biodiversity—alongside seed mixes for wild birds attracts flocks of 1，000 linnet on to the farm in winter.“We're not the sort of farmers who want to see everything rewilded，” says Emma Gray.“We are passionate about growing food but it can be done in balance with nature.” 　　语篇解读　本文是一篇说明文。文章主要介绍了格雷夫妇在他们的再生农场上恢复了11个干涸的池塘，这些池塘现在充满了稀有的水生植物和昆虫，也为鸟类和蝙蝠提供了食物和水，以及这一举措对农业生态的积极影响。 5.How did Gray revive the deserted pond？ A.By sheltering birds. B.By purifying water. C.By removing bushes. D.By trapping insects. 答案：C 解析：细节理解题。根据第二段中“Ponds that were shaded over or overgrown by bushes have been opened up...and insects ”可知，Gray是通过移除灌木丛来恢复废弃的池塘的。故选C项。 6.What was a cause of the pond disappearance in the 20th century？ A.The application of farm machinery. B.The increase of livestock raising. C.The introduction of new species. D.The expansion of woodland. 答案：A 解析：细节理解题。根据第三段中“When tractors replaced horses，there was less need for ponds for livestock (牲畜) and when fields were enlarged，many ponds were filled in.”可知，20世纪池塘消失的一个原因是农机具的使用。故选A项。 7.What can we infer about regenerative farming from the last paragraph？ A.It involves organic food processing. B.It aims to rewild as much land as possible. C.It improves the environment but leads to protests. D.It achieves productivity while supporting biodiversity. 答案：D 解析：细节理解题。根据最后一段中“The Grays now devote 40％ of their land to wildlife-restoring projects but grow...in winter.”可知，再生农业在支持生物多样性的同时实现了生产力。故选D项。 8.What can be a suitable title for the text？ A.Freeing the Skies for Wild Birds B.Essex Lost Ponds Project Taking a Bow C.Ploughing All the Way to Agricultural Progress D.Restored Ponds Repumping Nature into Farmland 答案：D 解析：标题归纳题。通读全文，结合第一段“When Joe Gray coppiced(修剪) a spot of woodland on his Essex...to sunlight.”和最后一段中“Their regenerative farming—not ploughing，and thereby boosting soil health...in winter.”可知，文章主要讲述了格雷夫妇在他们的再生农场上恢复了干涸的池塘，这些池塘现在充满了稀有的水生植物和昆虫，也为鸟类和蝙蝠提供了食物和水，以及这一举措对农业生态的积极影响。故D选项“恢复的池塘为农田重新注入自然活力”能概括文章内容，最适合作为文章标题。故选D项。 Ⅱ.阅读七选五(每小题2分，共10分) (2025·海南·二模) 　　A low-carbon lifestyle is one that aims to reduce greenhouse gas emissions and minimize the impact of human activities on the climate.　1　，such as using renewable energy，eating less meat，traveling by public transport，recycling，and planting trees.But what are the benefits and challenges of adopting a low-carbon lifestyle？ One of the main benefits of adopting a low-carbon lifestyle is that it can help to protect the environment.By reducing your carbon footprint，you can contribute to lowering the global temperature，preserving natural resources，preventing biodiversity loss，and improving air quality.　2　.It supports the transition to a circular economy，in which materials are reused and recycled instead of being thrown away. Another benefit of adopting a low-carbon lifestyle is that it can improve your health and well-being.　3　.A low-carbon lifestyle can also enhance your social and emotional well-being by fostering a sense of community，purpose，and satisfaction. 　4　.One of the main challenges is to change your habits and behaviors，which can be influenced by various factors，such as culture，convenience，comfort，and cost.For example，you may find it hard to give up your car，your favorite food，or your fast fashion purchases，even if you know they are harmful to the environment. Despite the challenges，adopting a low-carbon lifestyle is possible and rewarding.　5　.Seek inspiration and support from others who have adopted a low-carbon lifestyle，as well as from experts or organizations that can help you with your projects.Additionally，be creative and flexible with your lifestyle by experimenting with different options and solutions.Finally，embrace the diversity and richness of a low-carbon lifestyle to enjoy the variety and novelty of your experiences. A.It can involve various choices and actions B.Changing habits and behaviors isn't difficult C.A low-carbon lifestyle can also reduce waste and pollution D.However，adopting a low-carbon lifestyle is not always easy E.More and more people wonder how to adopt a low-carbon lifestyle F.To begin with，you need to start small by setting realistic and measurable goals G.Many low-carbon activities，such as walking，can boost your physical and mental fitness 　　语篇解读　本文是一篇说明文。文章介绍了低碳生活的种种好处，并对如何开始低碳生活提出了建议。 1.答案：A 解析：根据前文“A low-carbon lifestyle is one that aims to reduce greenhouse gas emissions and minimize the impact of human activities on the climate.”和后文“such as using renewable energy，eating less meat，traveling by public transport，recycling，and planting trees.”可知，此处是指低碳生活方式有很多选择和形式，所以选项A“它可以包含各种选择和行动”符合语境。故选A。 2.答案：C 解析：根据前文“By reducing your carbon footprint，you can contribute to lowering the global temperature...air quality.”和后文“It supports the transition to a circular economy，in which materials...thrown away.”可知，此处是讲低碳生活的好处还包括减少浪费和污染，所以选项C“低碳的生活方式还可以减少浪费和污染”符合语境。故选C。 3.答案：G 解析：根据前文“Another benefit of adopting a low-carbon lifestyle is that it can improve your health and well-being.”和后文“A low-carbon lifestyle can also enhance your social and emotional well-being...and satisfaction.”可知，此处是指低碳生活有益于身心健康，所以选项G“许多低碳活动，如散步，可以促进你的身心健康”符合语境。故选G。 4.答案：D 解析：根据后文“One of the main challenges is to change your habits and behaviors，which can be influenced by various factors，such as culture，convenience，comfort，and cost.”可知，此处是讲改变原本的行为习惯并不容易，所以选项D“然而，采用低碳生活方式并不总是那么容易”符合语境。故选D。 5.答案：E 解析：根据后文“Seek inspiration and support from others who have adopted a low-carbon lifestyle，as well as from...your experiences.”可知，此处是讲如何开始低碳生活，所以选项E“越来越多的人想知道如何采取低碳的生活方式”符合语境。故选E。 Ⅲ.完形填空(每小题2分，共30分) 　　In October 2015，Shah began picking up rubbish from the beach every Sunday morning.At first，it was just him and a neighbour，and then he began 　1　 others to join in.Word spread and with help from social media，more volunteers got involved. Shah hasn't stopped since.He's now spent 209 weekends 　2　 this mission inspiring more than 200，000 　3　 to join him in what's been called the world's biggest beach clean-up.By October 2018，Versova Beach was 　4　 clean and Shah's clean-ups expanded to another 　5　. For Shah，the work has always been a personal journey，but it has earned 　6　 attention.After he was honoured as a “Champion of the Earth” by the United Nations in 2016，Bollywood celebrities and politicians 　7　 his mission and joined in his clean-ups. Today，Shah is also working with coastal communities to 　8　 plastic pollution at one of the sources.In areas lacking waste management systems，　9　 often end(s) up in streams and rivers that empty into the 　10　.Shah and his volunteers 　11　 and assist villagers in reducing，managing and recycling their plastic waste. “This world 　12　 too much.I think you must talk less and do action more，” he said.“Every citizen on this planet must be in for a long pull.I feel the 　13　 to do something for my planet，so this will 　14　 for life.If each one could start，this journey could become 　15　.Can we do it together？” 　　语篇解读　本文是一篇记叙文。文章主要讲述了“地球卫士”Shah和他的海滩清理行动，他的事迹激励了无数人参与到这项环保运动中来。 1.A.asking B.ordering C.warning D.forcing 答案：A 解析：空前一句说起初只有Shah和他的一个邻居在海滩上捡垃圾，空后一句又说更多的志愿者参与进来，由此可知，后来Shah开始邀请其他人加入捡垃圾的活动中。故选A项。 2.A.comparing to B.adapting to C.relating to D.devoting to 答案：D 解析：空前一句说“Shah从此就没有停止过”，因此此处指他已经花了209个周末致力于这项工作。故选D项。 3.A.workers B.volunteers C.journalists D.clerks 答案：B 解析：根据上文中的volunteers可知，参与海滩清理行动的人都是志愿者。故选B项。 4.A.originally B.finally C.suddenly D.theoretically 答案：B 解析：根据上文中的“In October 2015”及空前的“By October 2018”可知，此处说的是三年的清理工作取得的成果——维索瓦海滩终于被清理干净了。故选B项。 5.A.park B.bank C.beach D.market 答案：C 解析：根据上文中的“the world's biggest beach clean-up”可知，这项活动被称为世界上最大的海滩清理行动，因此清理完维索瓦海滩的垃圾后，Shah和他的小伙伴们又转向其他的海滩。故选C项。 6.A.global B.local C.national D.coastal 答案：A 解析：根据上文中的“the world's biggest beach clean-up”可知，Shah的清理行动被称为世界上最大的海滩清理行动，空后一句又说2016年他被联合国授予“地球卫士”称号，这说明Shah的海滩清理行动赢得了全球的关注。故选A项。 7.A.simplified B.changed C.accepted D.finished 答案：C 解析：根据空后的“and joined in his clean-ups”可知，宝莱坞名流和政界人士也加入海滩清理行动中，这说明他们接受了Shah的工作。故选C项。 8.A.make B.discuss C.throw D.handle 答案：D 解析：根据空后的“plastic pollution at one of the sources”可知，Shah与沿海社区合作从源头上解决塑料污染问题。故选D项。 9.A.trees B.materials C.rubbish D.tools 答案：C 解析：根据空前的“In areas lacking waste management systems”可知，这些地区缺乏废物管理系统，因此产生的垃圾会被排放到流入海洋的小溪和河流中。故选C项。 10.A.ocean B.factory C.mountain D.forest 答案：A 解析：根据空前的“　　 often end(s) up in streams and rivers that empty into the”可知，垃圾经常被排放到小溪和河流中，而这些小溪和河流往往流入海洋。故选A项。 11.A.protect B.control C.scold D.educate 答案：D 解析：根据空后的“and assist villagers in reducing，managing and recycling their plastic waste”可知，Shah和他的志愿者教育和帮助村民减少、管理和回收他们的塑料垃圾。故选D项。 12.A.talks B.complains C.thinks D.argues 答案：A 解析：根据空后的“talk less”可知，此处指“说得太多”。故选A项。 13.A.pity B.need C.pain D.effect 答案：B 解析：根据空后的“to do something for my planet”可知，Shah觉得他有必要为地球做点什么。故选B项。 14.A.come on B.get on C.look on D.go on 答案：D 解析：根据空后的“for life”可知，Shah会终身致力于这项工作。故选D项。 15.A.great B.complex C.complete D.difficult 答案：A 解析：根据空前的“If each one could start”可知，如果每个人都能参与进来，这个旅程将会变得更美好。故选A项。 学科网（北京）股份有限公司 $