Unit 2 Opening Page一开篇·明确单元目标-【创新大课堂系列】2025-2026学年高中英语必修第二册同步辅导与测试(人教版)

25,establish 26.limit 27.prevent 28.loss 29.contribution 30.investigate 31.donate 32.disappear 33.download 34.republic 35.professional 36.archaeologist 37.entrance 38.process 39.overseas 40.exit 41.parade 42.mirror 43.roof 44.dragon 45.forgive 46.digital 47.image 48.cave 49.throughout 50.quality 51.tradition 52.further 53.historic 54.opinion 55.quote 56.paraphrase 57.comparison 58.contrast 59.identify 60.forever ()1.give an example of 2.take part in 3.refer to 4.give way to 5.keep balance 6.lead to 7.make a proposal 8.turn to 9.limit damage to 10.investigate the issue 11.sign a document 12.take down 13.piece by piece 14.prevent... from, 15.donate...to...16.run a program 17.world cultural heritage sites 18.make sure 19.introduce...to... 20.come up with 21.all kinds of 22.more than just 23.be familiar with 24.do research 25.make a presentation 26.all over the world 单元基础知识核查（一） I,一、l,give way to the new 2.all over the world 3.be familiar with 4.protect cultural relics on Mount Tai 5.a professional archaeologist 6.produce electricity 7.lead to protests 8.prevent the loss of cultural relics 9.raise funds within the international community 10.investigate the issue 11,conduct several tests 12.a great success 13,a key stop along the Silk Road 14.work together for a better tomorrow 15.download free app 16.at the entrance to the Great Pyramid 二、l.the former...the latter.., 2.a nature preserve 3.take an active part in 4.give way to 5.keep a balanced diet 6.beyond the limit 7.attempt to do sth=make an attempt to do/at doing sth 8.in the process of 9.of good/high/poor quality 10.by tradition 11.in comparison with/to 12.by contrast II.1.be limited to 400 words or so 2.can the clubs enrich your knowledge of Chinese traditional culture 3.to prevent local villagers from cutting down 4.It's believed that 5.It is a tradition for Chinese IlI.1.were designed 2.is identified 3.that 4.to preserve 5.awareness 6.a 7.for 8.protecting 9.application 10.attempts UNIT 2 WILDLIFE PROTECTION Opening Page 探究新知 基础词汇练 1.★die out ④deadly⑤dead⑥to know⑦died out⑧died away ★alarming ④at/about/by⑤alarming⑥sound/raise the alarm 2.④of⑤awareness⑥As far as I'm aware⑦are aware of ⑧am aware that 3.②Why on earth③What on earth④on earth 21 4.①adj.平均的②@n.平均数③adj.普通的④u.平均有 ⑤above the average⑥an average of⑦on average 5,④themselves⑤for/about⑥As far as I'm concerned 6.④to⑤adaptation⑥have adapted a story from⑦adapt to the changing climate 7.①措施②量度为③尺寸④测量⑤be measured⑥to protect ⑦measuring⑧make some new clothes to his own measure 主题阅读练 语篇解读本文是说明文。文章讲述了由于全球变暖，北极熊有可 能在这个世纪末就要灭绝了。 l.C[细节理解题。根据第二段第二句中的“US Interior Secretary Dirk Kempthorne.,,on the US endangered species list..”可知，他 被要求把北极熊列入美国濒危物种名单，故选C。] 2,A[推理判断题。根据第三段第一句“Polar bears depend on floating sea ice.,are their main food,”可知，如果没有足够的海 冰，北极熊会因为捕捉不到足够的猎物而濒临灭绝，故选A。] 3,B[细节理解题。根据第四段的“Some team members fear, what their report says.”可知，科学家们担心北极熊消失的速度将 比他们预想的还要快，故选B。] 语篇解读本文是说明文。海洋对人类的生存起到至关重要的作 用，但是人类在很长一段时间内对海洋造成了污染和破杯，现在各 国都在努力采取措施保护海洋。 4,B[细节理解题。根据第三段内容可知，微生物吃海藻，然后依 次地大一点的动物吃小一点的动物，最后被人吃掉。故选B。」 5,D「细节理解题。根据第四段第二句可知，过去人类认为将垃圾 倒入大海不会对大海造成破坏。] 6,C[推理判断题。根据第四段最后两句可知，现在人类已经认识 到原先的做法是不正确的，而且鱼的储存量开始下降，可知过度 的捕捞造成了这一结果。] 7,B[细节理解题。根据最后一段第二句可知，很多国家限制鱼类 的捕捞，而不是禁止，故选B。] Reading and Thinking Part 1 、1.羚：羚类动物2.藏羚羊3.牧群：兽群4.毛（皮）：毛皮衣 服5，神圣的：受尊敬的6.商品：货物7，生物：动物 二、l.plain2.remind3.shoot4.profit 5.attack 6.remove 7.intend 8.exist 三、l.reserve2.observe3.beauty4.effective 5.recover 6.threat 7.harmony 8.concern concerned 9.adapt 10.alarming alarm 11.illegal ,1.on the plain 2.make out 3.be struck by 4.remind sb of sb/sth 5,a way of life 6.drop by 7.make profits 8.save...from... 9.under national protection 10.watch over 11.day and night 12.keep...from...13.in harmony with 14.a threat to.· 五、l.that'swhy 2.Only when you come to China can you Part 2 第二遍 步骤一 C 步骤二 第一至三段 1.(1)C (2)They will stay at a high altitude for the night and there the clouds seem almost close enough to touch.(3)To protect wild animals is to protect human beings themselves. 2.(1)①细的②纤细的③稀的④稀少的 第四、五段 1.(1)D (2)B (3)Great efforts were made to protect Tibetan antelopes. 2.How can you keep them safe on the road? 第六、七段 1.(1)C (2)D (3)The author intends to tell us that although the Tibetan antelope has been removed from the endangered species list,the threats to them have not yet disappeared.We must change our way of life and learn to exist in harmony with nature. 2.(1)However (2)Only when you realize the importance of foreign languages can you learn them well.UNIT 2 WILDLIFE PROTECTION Opening Page一开篇·明确单元目标 义；初步掌握客观分析海报、广告等多模态语篇所 学习目标 传递的信息及作者意图的能力，寻求动物保护的 、语言能力 合理方式和策略，培养批判性思维和创新思维 掌握多音节词的发音规律，能够利用这些规律进行正 能力。 听 确拼读，准确辨音；能够准确理解与动物保护有关的听 佳句积累 力文本内容。 能够在谈话中得体恰当地表达目的和意图；能够用简 、教材名言剖析 说 单的英语与他人交流野生动物的生存状况和保护 措施 教材 When the buying stops,the killing can too. 能够阅读日志体的叙事文本，理解其文体特征和语言 名言 -WildAid 特点，关注景物和心理活动等的描写：能够阅读和理解 本单元引言意为“没有买卖就没有杀害。 野生 读 多模态语篇（海报）中的文字、图片、色彩、符号等文字 动物救援”。这是保护野生动物的公益广告宣传语。 与非文字资源所传达的信息，分析和把握其语言特征 深意 它告诉人们，人类对动物制品的消费使无辜的野生 及作者的观点或态度等。 解读 动物惨遭屠戮，导致相关野生动物的濒危甚至灭亡， 写 能够设计一幅关于动物保护的英文海报 危及自然界的生态平衡。 能够关注与动物保护有关的图片、图表、视频等视觉资 看 源，学会从中获取信息。 野生动物救援(WildAid)这一组织成立于2000年， 二、学习能力 它以取缔针对灏危野生动物的非法贸易和缓解气候 文化 1.在听前，能够利用图片、图表等视觉资源，预测 变化为使命，通过公共宣传的方式教育公众减少对 微语 濒危野生动物制品的消费需求，同时提高环境保护 听力内容。 的意识。 2.能够辨析阅读文本中的表层和深层意义，准确 把握文本所传递的信息。 二、相关佳句合集 三、文化意识 1.Living things that are nourished will not injure 1.了解中外野生动物的生存状况和所面临的 one another;roads that run parallel will not 问题。 interfere with one another. -Li Ji 2.了解中外野生动物保护的不同策略、方式和问 万物并育而不相害，道并行而不相悖。 题解决方案，思考个人参与动物保护的合理 一《礼记》 方式。 2.Wildlife extinction is not a process that gives 四、思维品质 you time to fix your mistakes.In the face of 理解文字与非文字资源所传递的丰富信息、： science,there are no second chances. 思想、情感与观点；根据课文语境等推断隐含意： -Pan Wenshi 一 31 英语必修第二册 野生动物的灭绝不是给你时间改正错误的过：4.All animals and plants are important,because 程。在科学面前，我们没有机会去改过 each species contributes to the variety of life 潘文石 forms on the earth and plays an important role 3.Only if we human beings take some effective in maintaining life. measures can wild animals be preserved. 所有动植物都是重要的，因为每一物种都有助 只有我们人类采取一些有效的措施，野生动物 于地球上生命形式多样性的形成，而且对维持 才能得到保护。 生命起着重要的作用。 多读 阅读美文，开启快乐学习之旅 Animals are natural resources that people ③disappear. 消失 have wasted all through our history.Animals ④more than 不仅仅 have been killed for their fur or feathers,for ⑤source n. 来源 food,for sport,or simply because they were in the ⑥create vl. 导致；引起 way.Thousands of kinds of animals have ⑦hawk n. 鹰 disappeared from the earth forever.Hundreds ⑧multiply v. 繁殖 more are on the danger list today. ⑨forbid u. 禁止 Why should people care?Because we need ⑩the number of... …的数量 animals,and because once they are gone,there will never be any more.Animals are more than 动物是自然资源，在整个历史进程中，人类一 just beautiful or interesting.They are more than;直在糟蹋着这种资源。人们杀死动物，获得它们 just a source⑤of food.Every animal has its place:的毛皮或羽毛，把它们当作食物或运动方式，或者 in the balance of nature.Destroying one kind of:只是因为它们碍事。成千上万种动物已经从这个 animal can create⑤many problems..For example,:地球上永远地消失了。现今另外上百种动物也被 when farmers killed large numbers of hawks⑦，列人濒危动物名单中。 the farmers'stores of corn and grain were 为什么人们应该关注这一点？因为我们需要 destroyed by rats and mice.Why?Because hawks 动物，因为它们一旦消失，就永远不会再出现。动 eat rats and mice,with no hawks to keep down 物不仅仅是漂亮或有趣，它们也不仅仅是人类的 their numbers,the rats and mice multiplied 食物来源，在维持生态平衡中，每种动物都有其作 quickly. 用。毁灭其中一种动物会导致许多问题。比如， Luckily,some people are working to help save the animals.Some groups raise money to let 农民们如果杀死大量的老鹰，他们存放谷物和粮 people know about the problem.And they try to 食的仓库就会受到老鼠和田鼠的破坏。为什么？ get the governments to pass laws protecting 因为鹰吃鼠类，没有鹰控制它们的数量，鼠类就会 animals in danger.Quite a few countries have 迅速繁殖。 passed laws.These laws forbid the killing of any 幸运的是，有些人正在努力帮助拯救这些动 animal on the danger list.Slowly,the number of@物。有些组织筹钱以便让人们了解这一问题，他 some animals in danger is growing. 们也努力使政府通过保护濒危动物的法律。很多 [多积词汇] 国家已经通过了法律，这些法律禁止杀害濒危名 ①furn. 毛（皮）；毛皮衣服 单上的动物。渐渐地，某些濒危动物的数目正在 ②in the way 妨碍；挡道 不断上升。 32 UNIT 2 WILDLIFE PROTECTION 探究新知 发展语言能力 8The sound of the engine as the car 基础词汇练 drove into the distance. 1.Our planet's wildlife is dying out at an alarming 随着汽车向远方驶去，发动机声渐渐消失。 rate. ★alarming adj.惊人的；使人惊恐的 我们地球上的野生动物正以惊人的速度灭绝」 [思考感知] ★die out灭亡；逐渐消失；逐渐熄灭 DAn alarming number of the endangered animals [思考感知] have recently died. ①（以文化人助写作）As endangered animals 最近，这种濒临灭绝的动物出现了惊人数量的 are dying out,we young people should take the 死亡。 responsibility of protecting them. 2The sudden sound of the alarm alarmed me. 警报器的突然响起让我很惊恐。 由于濒危动物正逐渐灭绝，我们年轻人应该担 ③“What have you done?”Ellie cried in alarm, 负起保护它们的责任。 “你都干了些什么？”埃利惊恐地喊道。 2Doing nothing means that some deer will die [归纳点拨] of hunger or illness. (1)alarm vt. 使惊恐；使害怕；使担心 什么也不做意味着一些鹿会死于饥饿或疾病。 72. 恐慌；警报；警报器 3The fire in the forest is dying down,and will raise/sound the alarm 发出警报 soon die away. in alarm 惊恐地 森林的火势正在逐渐减弱，不久就会消失。 alarm clock 闹钟 fire alarm 火警 (1)die of 死于…（一般指死于内因，如疾 (2)be/feel alarmed at/about/by... 病、饥饿、情感原因等) 对…感到优忧虑或害怕 die from 死于…（一般指死于外因，如外 [活学巧用] 纳点拨 伤、车祸、污染等) 单句语法填空/完成句子 die away (声音、风、光等)慢慢变弱：逐渐 ④They were alarmed the fire that 消失 broke out suddenly. (2)dead adj. 无生命的：死的 5The rainforests are disappearing at an death n. 死：死亡 (alarm)rate. (I)die的-ing形式dying也可以作形容词，意为“垂死 6When I saw the heavy smoke,I tried to 的；临死的”；be dying to do sth“渴望/急于做某事”。 点津 (2)deadly是形容词，意为“致命的；极度的；彻底 看到浓烟后，我就设法发出警报。 的”；而不是dead的副词形式。 2.We must make people aware of the problem and 活学巧用] help protect the endangered wildlife before it's 单句语法填空/完成句子 too late! ④(2020·天津高考)The noise from the LRAD 我们必须让人们意识到这个问题并在还来得及 之前帮助保护濒危动物！ is directed like a ray of light and travels only ★aware of意识到；知道 into the ears of that person,but it is not [思考感知] (dead). ①（以文化人助写作）The more things I ⑤(2022·全国I卷)No luck.We were stuck in learned,the more things I became aware of that the middle of the lake with a (die) I didn't know. motor. 我学到的东西越多，越意识到自己不懂的东西 ⑥I'm dying (know)what happened. 很多。 DThis species has nearly because its 2As far as I'm aware,nobody has done anything habitat is being destroyed. about it. 因栖息地正受到破坏，这一物种已濒临灭绝。 据我所知，尚无人对此采取任何措施。 33 英语必修第二册 3To raise the awareness of the need for everybody [归纳点拨] to be fit,we speak up for fitness exercises and more (I)on earth表示“究竞；到底”，放在疑问词what,how, outdoor activities. why,where,who等之后表示强调，用于询问令人惊 为提高每个人的健康意识，我们极力呼吁加强 讶或生气的事。 (2)on earth表示“世界上；地球上”，用于包含形容词最 身体锻炼，增加户外活动。 高级的名词短语后或否定名词短语后表示强调。 [归纳点拨] [活学巧用]完成句子 (1)aware adj. 知道：发觉：有…意 ② did the hunters shoot these animals? 识的 猎人们究竞为什么要射杀这些动物？ be/become aware that... 知道/意识到… as far as I'm aware 据我所知 ③ did you do that for? (2)awareness n. 意识；认识 你那么做究竟为了什么？ develop an awareness of... 培养…的意识 He is one of the most powerful men raise/improve the awareness of... 他是世界上最有影响力的人之一。 提高……的意识 How many elephants are killed on average [活学巧用] every day? 单句语法填空/词汇复现（替换加黑词汇）/完成 平均每天有多少头大象被杀死？ 句子 ★average n.平均数；平均水平adj.平均的；正 4 In conclusion,people around the world; 常的；普通的y.平均为/有；计算出…的平 should be aware the real situation of 均数 water shortage. [思考感知] 写出下列各句中average的词性 ⑤(2023·全国1月)My goal is to help my 及含义 students develop (aware)of their ①(2022·浙江1月高考)The average peak strengths,weaknesses,and learning needs. workload was measured at 103 watts. 6As far as I know,seldom can a man without honesty be successful as a leader. 2It's said that the newspaper office receives DThrough the activity,we realise the importance of an average of nearly 100 articles a day. carrying out a low-carbon economy in our country. ③(2020·天津高考)And I have never known an average man who had both. 8As a member of society,I being t. 4The hotel averages 50 to 100 foreign guests responsible is what it takes to make a better daily. society [归纳点拨] 作为社会的一员，我意识到负责任是创造一个 an average of 平均有（后跟数词） 更好的社会所需要的。 on (the)average 平均（起来） 3.What on Earth Are We Doing to Our Planet? above/below (the)average 在平均水平以上/以下 我们到底对我们的星球在做什么？ [活学巧用]完成句子 ★on earth(放在疑问词之后表示强调)究竟；： 5Last year was the warmest year on record, 到底 with global temperature 0.68C [思考感知] 去年是有史以来最暖和的一年，全球温度比平 D There are fewer species on earth,which 均值高出0.68摄氏度。 makes us wonder what on earth we have done ⑥Parents spend $220 a year to them. on toys for their children. 地球上的物种越来越少，这让我们想知道我们： 父母为孩子买玩具的花费每年平均为220 到底对它们做了什么。 美元。 34 UNIT 2 WILDLIFE PROTECTION ⑦(2020·浙江1月高考)It's also that they are:6.Elephants need large living spaces,soit's healthier and more productive for; difficult for them to adapt to the changes. longer. 大象需要大的生存空间，因此它们很难适应这 而且，他们平均而言更健康，工作效率更高。 些变化。 5.I'm concerned about the African elephants. ★adapt vi..适应vt.使适应；使适合；改编；改写 我担心非洲大象。 [思考感知] ★concern vt..涉及；让…担忧n.[U]担忧；关 ①（以文化人助写作）It is important to learn 心；[C]关心的人或事 how to change and adapt oneself to society. [思考感知] 学习如何改变和使自己适应社会很重要。 ①(2020·浙江高考)Therefore,I am writing ②(2020·全国卷Ⅲ)People in Ethiopian to you to show my concern for your health. highlands have adapted to living at high 因此，我给你写这封信是为了表达我对你健康 altitudes. 的关心。 生活在埃塞俄比亚高地的人们已经适应了生 2His mother is concerned about his future and 活在高海拔地区。 his happiness. 3Was it adapted from a novel,and if so,who 他的母亲很关心他的未来和幸福。 wrote the novel? 3As far as I'm concerned,students who make a lot 它改编自一部小说吗？如果是的话，谁写的这 of progress should also be rewarded with prizes. 部小说？ 在我看来，取得很大进步的学生也应该得到 [归纳点拨] 奖励。 (1)adapt oneself to 使自己适应于… [归纳点拨] adapt...to... 使…适应…… (l)concern oneself about..关心… adapt to 适合：适应 根据…改编某物 (2)show concern for... 对…表示关心 (2)adapt sth from 担心的：关切的 be adapted for 为…而改写/改编 (3)concerned adj. be concerned about,/for对…关切的：为…担 (3)adaptation n. 适应；改编；改编本；改写本 忧的 [名师点津] (l)adapt(oneself)to中的to为 as/so far as .be concerned 介词，其后跟名词、代词、动词-ing形式作宾语。 就…而言 (2)adopt与adapt形式相近，但adopt意为“采 [名师点津]concerned作形容词用作前置定 纳，采用；收养”。 语时，意为“关心的；担忧的；关切的”；作后置定 [活学巧用] 语时，意为“有关的；相关的”。例如：a 单句语法填空/完成句子 concerned look(关切的神色)；the authorities ④How to adapt yourself the new concerned(有关当局). environment is the first thing that you have to [活学巧用] face. 单句语法填空/词汇复现（替换加黑词汇） 5On Thursday in an article published in Cell, 4Since there is always heavy fog,many people 、 a team of researchers reported a new kind of begin to concern (they)about air (adapt)-not to air or to food,but pollution. to the ocean. 5He called the police because he was concerned ⑥(2020·全国卷Ⅲ)My classmates and I Mary's safety. our English textbook for a short 6In my opinion,we must get fully prepared play recently. and practice hard in order to perform well in 最近，我和我的同学们将一个来自英语教材的 the match. 故事改编成了一部短剧。 35 英语必修第二册 D Human beings will continue to 主题阅读练 in both ordinary and astonishing ways. A 人类将会以正常的和出人意料的方式来继续 More than two thirds of the world's polar 适应气候变化 bears will be wiped out by 2050,according to a 7.What measures are being taken to help them? 、 shocking new study.By then,scientists say,glob- 正在采取什么措施来帮助它们？ al warming will have melted 42 percent of the Arctic sea ice.By 2100,only a very few of these ★measure vt..测量；估量；度量i.(指尺寸、长 important creatures will be left. 短、数量等)量度为n.措施；方法；尺寸 The report has been produced by the US Ge- [思考感知]写出下列各句中measure的含义 ological Survey.The scientists have publicized DWe must pay attention to these problems and their findings in the hope of influencing US Inte- take effective measures to solve them. rior Secretary Dirk Kempthorne,who has been asked to put polar bears on the US endangered 2This line measures four times as long as that species list. one. Polar bears depend on floating sea ice as a 3It seemed as if the suit was made to his own platform for hunting seals,which are their main measure. food.Without enough ice,polar bears would be 4To measure the volunteers'mental ability, forced to go onto the land,where they are poorly the scientists ask them to take the tests. skilled hunters,and would be unlikely to adapt to the life on the land in time.Experts say few little bears would survive and the stress could make (1)take measures to do sth采取措施做某事 many females unable to get pregnant. 归纳 make..to one's measure依照某人的尺寸 The team of American and Canadian scien- 做…/为… 点拨 量身订做 tists spent six months studying bears,on the (2)be measured by/.in用…来衡量/计算 ground,from spotter planes and in the lab,using computer models.Some team members fear the measure表示“（测量后）有…长（或宽、高、大 result is even worse for the bears than what their 名师 等)”时是系动词，用主动形式表示被动含义。若 report says.They say the Arctic is warming faster 点津 表示此意义的短语作后置定语时，要用现在分词 than anywhere in the world and much faster than 形式。 their computer had been forecasting.Satellite ob- [活学巧用] servations have showed that the ice has decreased 单句语法填空/完成句子 to an all-time low. 5 It's generally acknowledged that education However,not everyone in the scientific com- shouldn't measure only by munity believes that global warming is happening examination results. on such an alarming scale.Another investigation has found that polar bears are still being hunted 6We should take measures protect) by wealthy“sportsmen'”who want their skins the environment at once. and heads.At least ten international companies 7 The hall was extremely big, offer bear-hunting trips. (measure)200 metres long and 100 metres 1.What do we know about Dirk Kempthorne wide. according to the passage? 8Mr Smith asked the tailor to A.He is an animal scientist. B.He is a protector of animals working for the 史密斯先生要求裁缝照他的尺寸做些新衣服 US government. 36 UNIT 2 WILDLIFE PROTECTION C.He was asked to put polar bears on the US: The bad news about the food chains in the endangered species list. oceans is that they are under threat because of D.He offered to put polar bears on the man.People once thought that the oceans were so endangered species list. big that it didn't matter if we dumped rubbish into 2.Why will polar bears die out if there is not them or caught huge quantities of fish and whales for enough sea ice? food.But we now know this is not true and fish stocks A.Because polar bears can't catch enough food in the oceans have started to drop. without ice. Thankfully,the world is taking steps to protect B.Because polar bears eat ice when they feel the future of our oceans by introducing international thirsty. agreements to protect marine habitats.Most countries have introduced fishing restrictions to protect fish C.Because polar bears will be easily found by stocks in the oceans and new techniques are being hunters without ice. pioneered to cope with pollution.Finally,the D.Because most female bears are used to importance of protecting oceans is being made known giving birth under ice. to more people.This is just the beginning of a long process to protect the oceans for our future.We depend 3.After a six-month study,some scientists fearon the oceans for fish which are an important part of that the human diet.How important sea water is! A.there is something wrong with their computers 4.Which of the following is the proper order of B.polar bears will disappear even faster than the food chain? A.small animals→algae→microscopic animals they ever expected →large animals-→man C.their computer models are not as accurate as B.algae→microscopic animals→large animals they expected →larger animals-→man D.global warming will destroy everything in C.small animals→algae→large animals microscopic animals->man the Arctic D.microscopic animals→algae→large animals B →larger animals-→man About 97%of the world's water is salty and 5.People used to think that the rubbish thrown is found in our oceans and seas.But,as we can't into the sea drink sea water,how can it be important? A.wouldn't harm the fish in the sea B.would change the balance of the food chain Every part of our seas and oceans contains an C.would be broken down in the sea amazing number of animals and fish that live ati D.wouldn't do much harm to the sea different ocean depths.Most of the different 6.From the passage,we learn that species of animals and fish depend on simple A.most fish and sea animals live at the surface of the seas plants for their food.These simple plants called B.it is very difficult to break the balance of a algae()drift near the surface of the ocean and food chain use sunlight to turn carbon dioxide and water into C.excessive fishing has caused the decrease in food and oxygen.In fact,the algae produce over fish stocks D.it won't be long before the problems concerning half of the oxygen people breathe.How important; oceans will be solved sea water is！ 7.Which of the following is NOT a way being Each plant or animal in our seas and oceans used to protect oceans? is an important link in a food chain.The algae are A.The use of international agreements. B.Forbidding fishing to protect fish stocks. eaten in large amounts by microscopic animals,: C.The use of new techniques. which are in turn consumed by larger animals. D.Raising people's awareness of the need to These food chains are delicately balanced. protect oceans. 37