Unit 5 Period Two Using language(PPT课件)-【满分思维】2026-2027学年高中英语选择性必修第一册配套课件（外研版）

Period Two Using language 1 语言知识梳理 语法探究 课后习题 2 blame　v.把……归咎于;责怪,指责 n. (坏事或错事的)责任,责备,指责 (教材P71)The extinction of the Pinta Island tortoise is blamed on humans. 平塔岛龟的灭绝归咎于人类。 (1)blame sb for (doing) sth 因(做了)某事而责备某人 blame sth on sb 把某事归咎于某人 be to blame (for…) (因某事)应受责备,应(为……)承担责任 (主动表示被动) 语言知识梳理 3 (2)lay/put/place the blame for sth on… 把……归咎于…… bear/take/accept/shoulder the blame (for sth) (对某事)承担责任 语言知识梳理 4 【活学活用】 (1)单句填空 [北师版选必一U3] Many scientists say we are now entering the Earth’s sixth mass extinction. This time, human activity will be _____________(blame).  to blame 语言知识梳理 5 (2)写作金句 ①He was worried his grandmother might ____________________________ potatoes.   他担心祖母可能会责备他把土豆送人。(读后续写之心理描写) ②Don’t always _______________________________ others; instead, take a moment to reflect on your own actions and decisions. (v.)   不要总把你自己的失败归咎于他人,相反,花点时间反思自己的行为和决定。(读后续写之文末总结句) blame him for giving away blame your own failure on 语言知识梳理 6 阅读以下有关“派对尴尬事”的小短文,感知加黑部分,并回答其后的问题。 By the time I reached the party, everyone ①had already arrived. A delicious meal ②had been prepared by the host, which she ③had cooked herself. The music ④had been playing for over an hour, creating a lively atmosphere. I discovered that many guests ⑤had brought gifts; some ⑥had even handwritten cards to express their 语 法 探 究 7 best wishes. Feeling a bit left out, it occurred to me that I ⑦had forgotten to bring anything. Embarrassed, I excused myself to find the host and explained that, unfortunately, I ⑧had overlooked the gift-giving part. She kindly assured me it was okay, as the company was more than enough. 语 法 探 究 【自主发现】 以上语段中的①③⑤⑥⑦⑧都是___________时;②为___________________　　　　　　　______________形式;④为___________________时。 过去完成 过去完成时的 过去完成进行 被动语态 语 法 探 究 9 过去完成时 1.基本结构: 语 法 探 究 10 2.基本用法: (1)表示在过去某个时间或动作之前就已经发生的动作,通常简称为“过去的过去”。句中常有by, by the end of等介词(短语)和by the time, before, when, until等引导的状语从句。如: When the police arrived, the thief had already escaped through the back door. 警察到的时候,小偷已经从后门逃走了。 By the time he graduated, he had published several short stories. 他毕业时,早已发表了好几篇短篇故事。 语 法 探 究 11 (2)表示发生在过去某个动作或时刻之前的动作一直延续到过去的另一个时间,常与for, since等词连用。如: When Jack arrived, Mary had been away for almost an hour. 当杰克到达时,玛丽已经离开快一个小时了。 语 法 探 究 12 3.过去完成时在几个重点句型中的应用: (1)在no sooner…than…, hardly/scarcely…when…句型中,主句用过去完成时,意为“一……就……;刚……就……”。如: We had no sooner arrived there than the meeting began. 我们一到那儿,会议就开始了。 I had hardly/scarcely returned from work when the rain poured down. 我刚下班回来,大雨就倾盆而下。 语 法 探 究 13 【名师点津】 若把句型中的no sooner, hardly/scarcely放在句首,主句用部分倒装,即提前助动词had。如: No sooner had I sat down than there was a loud knock on the door. 我刚坐下就有人大声敲门。 Hardly/Scarcely had she stepped out of the car when she noticed the keys were still inside. 她一从车里出来,便发现钥匙居然还留在车上。 语 法 探 究 14 (2)在“It was the first/second/…time that…”句型中,that从句用过去完成时。如: It was the first time that I had ever travelled alone. 这是我第一次独自旅行。 语 法 探 究 15 (3)表示“意愿,打算”的动词(如hope, mean, want, think, expect, plan, intend等)的过去完成时表示“原本……(但事实上并没有……)”之意。如: We had expected to arrive early, but there was a traffic jam on the way. 我们原本预计会早到,但路上堵车了。 They had wanted to help but couldn’t get there in time. 他们本来想帮忙,但是未能及时赶到那里。 语 法 探 究 16 4.过去完成时与一般过去时、现在完成时的区别: (1)一般过去时侧重发生在过去的客观事实;而过去完成时强调动作发生在过去的过去,一定有一个表示过去的参照点。如: By the end of last year, we had produced 20,000 cars. 到去年年底,我们已经生产了20 000辆汽车。 A thief broke into his house last night and stole some of his wife’s jewellery. 昨晚一个小偷闯进他家,偷走了他妻子的一些首饰。 语 法 探 究 17 (2)过去完成时以过去作为时间参照来谈论更远的过去;现在完成时以现在作为时间参照来谈论过去。如: He has just graduated from Harvard and is trying to find a job in Beijing. 他刚从哈佛大学毕业,正努力在北京找工作。 Mary was pleased to see that the seeds she had planted in the garden were growing. 玛丽很高兴看到她在花园里种下的种子正在生长 语 法 探 究 18 【实战演练】 Ⅰ 单句填空 1.Before he moved to the countryside, he ____________(live) in town for ten years.   2.As a little girl, I __________(wish) to be a zookeeper when I grew up.   3.She brought her three friends to the party, none of whom I ____________(meet) before.   had lived wished had met 语 法 探 究 19 4.The fisherman ____________(catch) a large fish that weighed over twenty pounds.   5.We ______________(learn) about 4,000 English words by the end of last term.   6.In his letter, he said it was the third time that he _____________(catch) a cold this year. caught had learned had caught 语 法 探 究 20 7.In the last five years, Cao _______________(walk) through 34 countries in six continents.   8.Silk _________________(become) one of the primary goods traded along the Silk Road by about 100 BC. has walked had become 语 法 探 究 21 Ⅱ 句型训练 1.He _________________________________(原本想向她道歉) before she left, but he just couldn’t find the right words.   2.It is the most instructive lecture that __________________(我已经参加的) since I came to this school.   3.It was __________________________________________(他第一次游览新疆) and he was amazed by the breathtaking scenery.   had wanted to apologize to her I have attended the first time that he had visited Xinjiang 语 法 探 究 22 4.Pahlsson and her husband ____________________________(搜了厨房), checking every corner, but turned up nothing.   5.Hardly ________________________(我刚睡着) when the noise outside woke me up.   searched the kitchen had I fallen asleep 语 法 探 究 23 课 后 习 题 24 Ⅰ 单句填空(每小题1.5分，满分15分) 1.By the time the researcher finished her analysis, she _______________ ______________(discover) that many of our ancestors had migrated from Europe.  2.It was the first time that he ______________(visit) the awe-inspiring statue, and he couldn’t help but feel a sense of pride. had had visited 1 2 3 4 5 6 7 8 9 10 discovered 课 后 习 题 25 3.Dick _________________(quit) his previous job and was working as a technician in a company when the journalist ________________ (interview) him.  4.The computer _________________(generate) a detailed report on the sales performance of the company over the last quarter.  5.He _______________(rush) out of the spot before I could catch him in time. had quit/quit interviewed has generated had rushed 1 2 3 4 5 6 7 8 9 10 课 后 习 题 26 6.She ____________(cook) a delicious dinner for her family last night, and everyone enjoyed it.  cooked 1 2 3 4 5 6 7 8 9 10 课 后 习 题 7.During the halftime break of their quarter-final game, they realized they _______________________(underestimate) their opponent’s determination and will to win.  8.So far nobody ___________________(claim) the money discovered in the library.  9.All the wire fences around the campus ____________________(tear) down by the time Jack returned to school from home.  10.He _______________(enter) the room, turned on the light and read an evening paper.  had underestimated has claimed had been torn entered 1 2 3 4 5 6 7 8 9 10 课 后 习 题 28 Ⅱ 语法+写作(每小题3分，满分15分) 1.After the operation, Sarah walked with a newfound confidence,　　　　　　　　　　　　　　 ____________________________________ a life-changing surgery both physically and mentally.(undergo)  手术后,莎拉走路时带着一种前所未有的自信,仿佛她在身体和精神上都经历了改变人生的手术。 as if/though she had undergone 1 2 3 4 5 课 后 习 题 29 2.Last Saturday morning, Mary ______________________________________ __________________________________, but found herself drawn to practising yoga instead.  上周六早上,玛丽本来打算读一本书,但发现自己被练习瑜伽所吸引。 3.By the time the children woke up, their mother ___________________ _____________.  当孩子们醒来时,他们的妈妈已经做了早餐。 had intended to read a book/ had already made 1 2 3 4 5 intended to have read a book breakfast 课 后 习 题 30 4.That was the third time that _______________________________________ ________________ in the tournament. 那已经是他第三次在锦标赛中被他的对手击败了。  5.By the time the firefighters arrived,__________________________________ by the neighbours.  当消防员到达时,邻居们已经把火扑灭了。 he had been defeated by his rival/ the fire had already been put out 1 2 3 4 5 opponent 课 后 习 题 31 Ⅲ 语篇语法填空(每小题1.5分，满分15分) ［2025·广东广州高二期中］ Some time after 10000 BC, people made the first real attempt to control the world they lived 1._________, through agriculture. Over thousands of years, they began to depend less on 2.________ could be hunted or gathered from the wild, and more on animals they had raised and crops they had sown.  Farming produced more food per person than hunting 3._______　　　　　　 gathering, so people were able to raise more children. in what and 1 2 3 4 5 6 7 8 9 10 课 后 习 题 32 And, as more children were born, more food 4.________________(need). Agriculture gave people their first experience of the power of technology 5.____________(change) lives.  By about 6000 BC, people 6.____________________(discover) the best crops to grow and animals to raise. Later, they learned to work with the 7._______________(season), planting at the right time and, in dry areas, 8.___________(make) use of annual floods to irrigate (灌溉) their fields.  was needed to change had discovered seasons making 1 2 3 4 5 6 7 8 9 10 课 后 习 题 This style of farming lasted for quite a long time. Then, with 9.________ rise of science, changes began. New methods 10.__________　　　　　　 (mean) that fewer people worked in farming. In the last century or so, these changes have accelerated. New power machinery and artificial fertilizers (化肥) have now totally transformed a way of life that started in the Stone Age.  【文章大意】这是一篇说明文。文章讲述了农业的发展历史。 the meant 1 2 3 4 5 6 7 8 9 10 课 后 习 题 1.___ in [解析] 考查介词。分析可知,“…they lived…”是名词the world 的定语从句,定语从句引导词被省略,由此可推知先行词应是在从句中作宾语,即they lived in the world, “live in+名词”意为“居住在某地”。故填in。 2.______ what [解析] 考查名词性从句。分析句子可知,宾语从句部分缺主语,所以引导词应为连接代词。根据句意可知,此处表示“什么”。故填what。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 35 3._____ and [解析] 考查连词。hunting 和gathering 为并列关系,应用连词and连接,故填and。 4.____________ was needed [解析] 考查动词时态、语态和主谓一致。分析句子可知,主语和need之间是被动关系。同时此处描述的是过去的事情,所以时态应用一般过去时。故此处应用一般过去时的被动语态。food在此处为不可数名词。故填was needed。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 36 5.___________ to change [解析] 考查非谓语动词。分析句意可知,此处需用不定式作后置定语修饰power。故填to change。 6._______________ had discovered [解析] 考查动词时态和语态。分析句子可知,设空处作谓语,主语和提示词之间为主动关系。“by+过去时间”意为“到……为止”,后面的句子用过去完成时。故填had discovered。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 37 7.________ seasons [解析] 考查名词复数。分析句子可知,提示词为可数名词,应用复数形式。故填seasons。 8.________ making [解析] 考查非谓语动词。分析句子可知,make所处的分句需用非谓语动词。make use of和逻辑主语they之间是主动关系,所以此处用现在分词形式作状语。故填making。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 38 9.____ the [解析] 考查冠词。with the rise of意为“随着……的崛起”,是固定短语。故填the。 10._______ meant [解析] 考查动词时态。分析句子可知,设空处在句中作谓语,从句时态是一般过去时,此处也应为一般过去时。故填meant。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 39 Ⅳ 完形填空(每小题1分，满分15分) [2026·四川成都实验外国语学校高二阶段性考试] Our family was sitting on the porch swing (秋千) enjoying the summer breeze when my husband pointed to something on the swing’s chain next to him. We 　1　 forward to see a large praying mantis (螳螂) attached to the chain. We held our 　2　 and watched, not wanting to scare it away. We sat and 　3　 chatted for the next half hour as we watched the insect 　4　 up and down the chain. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 40 It seemed 　5　 by our presence, and we were 　6　 to observe its slow, precise movements. We wouldn’t have 　7　 it if my husband had not pointed it out. Too often, we move through life, 　8　 of the beautiful blessings surrounding us each day. The 　9　 of sitting and watching an insect for half an hour is something I do not want to take for granted. Too often, I define myself by my 　10　. I start my morning with a checklist and 　11　 my worth by how much I get done by the day’s end. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 I’m learning to 　12　 my tireless pursuit of productivity and simply 　13　 the gifts of this beautiful world when I see them. Each creature displays a small 　14　. To sit and watch a unique bug like a praying mantis is an act of admiration. I think I’ll 　15　 and sit for a while in search of another beautiful bug just to appreciate the beauty of nature.  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 【文章大意】本文是一篇夹叙夹议文。文章主要讲述了作者观察螳螂引发的感悟。 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 43 ( )1.A.struggled　　 B.dropped C.put D.bent [解析] 根据空后“…forward to see a large praying mantis (螳螂) attached to the chain.”可知,为了看到螳螂,要俯身向前。故选D。struggle挣扎;drop掉落;put放置;bend弯曲。 ( )2.A.back B.attention C.breath D.tool [解析] 根据下文not wanting to scare it away可知,为了不吓跑螳螂,要屏住呼吸,hold one’s breath“屏住呼吸”。故选C。back背部; attention注意力;breath呼吸;tool工具。 √ √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 44 ( )3.A.quietly B.casually C.happily D.nervously [解析] 根据上文not wanting to scare it away可知,不想吓跑螳螂,所以是静静地聊天。故选A。quietly安静地;casually随意地;happily高兴地;nervously紧张地。 ( )4.A.looking B.flying C.falling D.climbing [解析] 根据空后up and down the chain可知,螳螂在链条上爬上爬下。故选D。look看;fly飞;fall掉落;climb爬。 √ √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 45 ( )5.A.undoubted B.unbothered C.untouched D.unaccepted [解析] 根据下文“…we were…to observe its slow, precise movements.”可知,螳螂仍在正常活动,说明螳螂没有受到作者一家的打扰。故选B。undoubted无疑的;unbothered不受打扰的;untouched未受影响的,原封不动的;unaccepted未被接受的。 √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 46 ( )6.A.impatient B.frightened C.grateful D.responsible [解析] 根据下文the beautiful blessings surrounding us each day以及“…simply…the gifts of this beautiful world when I see them.”可知,作者认为能够观察到这只螳螂缓慢而精确的活动是大自然带来的美好的礼物,因此对看到这样的情景心存感激。故选C。impatient不耐烦的;frightened害怕的;grateful感激的;responsible负责的。 √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 47 ( )7.A.noticed B.recognized C.selected D.pictured [解析] 根据下文“…if my husband had not pointed it out.”可知,如果没有丈夫指出,作者就不会注意到螳螂。故选A。notice注意到;recognize认出;select选择;picture想象。 ( )8.A.uncertain B.proud C.ashamed D.unaware [解析] 根据上文“We wouldn’t have…it if my husband had not pointed it out.”可知,如果没人指点,很多时候,人们没有意识到每天围绕在身边的美好事物。故选D。uncertain不确定的;proud骄傲的;ashamed羞愧的;unaware没有意识到的。 √ √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 48 ( )9.A.courage B.reward C.safety D.wisdom [解析] 根据上文the beautiful blessings surrounding us each day以及下文“I’m learning to…my tireless pursuit of productivity and simply…the gifts of this beautiful world when I see them.”可知,作者认为观察到这只螳螂是大自然给予的美好的礼物,坐着观察一只昆虫半个小时对自己来说是个奖励,但一直不知疲倦地工作的作者不想把这一奖励视作理所当然的。故选B。courage勇气;reward回报,奖励;safety安全;wisdom智慧。 √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 49 ( )10.A.confidence B.expectation C.productivity D.perseverance [解析] 根据后文my tireless pursuit of productivity可知,作者用效率来定义自己。故选C。confidence自信;expectation期望;productivity效率;perseverance毅力。 √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 50 ( )11.A.ignore B.measure C.lower D.promote [解析] 根据空后my worth by how much I get done by the day’s end可知,作者用一天结束时完成的事情来衡量自己的价值。故选B。ignore忽视;measure衡量;lower降低;promote促进。 ( )12.A.stop B.keep C.imagine D.defend [解析] 根据下文“…my tireless pursuit of productivity and simply…the gifts of this beautiful world when I see them.”可知,作者正在学习停止对效率的不懈追求。故选A。stop停止;keep保持;imagine想象;defend防御。 √ √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 51 ( )13.A.enjoy B.deliver C.produce D.forget [解析] 根据空后“…the gifts of this beautiful world when I see them.”可知,作者要停止过度追求效率,转而享受生活,所以看到美丽世界的馈赠时,要享受它们。故选A。enjoy享受;deliver递送;produce生产; forget忘记。 √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 52 [解析] 根据上文the beautiful blessings surrounding us each day以及to observe its slow, precise movements可知,作者意识到每天都有美丽的事物围绕着自己,像这只缓慢而精确活动的螳螂一样,每一种生物都是一个小小的奇迹。故选C。principle原则;purpose目的;wonder奇迹;puzzle谜题。 ( )14.A.principle B.purpose C.wonder D.puzzle √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 53 ( )15.A.pull through B.come back C.turn up D.go out [解析] 根据下文“…sit for a while in search of another beautiful bug just to appreciate the beauty of nature.”可知,此处指出去寻找另一只美丽的昆虫,欣赏自然界的美丽。故选D。pull through渡过难关; come back回来;turn up出现;go out出去。 √ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 课 后 习 题 54 Ⅴ 阅读七选五(每小题2.5分，满分12.5分) Scientists make amazing paint using ideas from nature The colours in most paint come from pigments(颜料)—coloured things such as minerals, metals or chemicals. But nature has another way to create colour, called “structural colour”. Structural colour comes from tiny shapes on the surfaces of things like wings, feathers or shells. 1._______ Now scientists have used nanotechnology(纳米技术) to make paint with structural colour.  F 1 2 3 4 5 课 后 习 题 55 2._______ They were trying to create a special mirrored surface. But they found super-small clumps of aluminum atoms(铝原子团块) on the surface. The researchers were upset because these small clumps messed up the mirror. Then they realized that the clumps made colours when light hit them. They decided to turn their discovery into paint.  All the colours in the new paint come from aluminum. There are tiny aluminum pieces and then even smaller nanoparticles(纳米颗粒) that create the colours. C 1 2 3 4 5 课 后 习 题 56 The nanoparticles don’t really produce the colour. They simply reflect back a single colour. 3._______ Because the new paint doesn’t have pigments, the paint is so light that it could reduce the amount of fuel used by planes and cars. 4._________ It would only take 1.3kg of structural paint to do the same job. D E 1 2 3 4 5 课 后 习 题 5._______ In regular paint, pigments break down and fade over time. That’s not true for structural colour. Once we paint something with structural colour, it should stay for centuries. What’s more, the new paint doesn’t heat up like regular paint. That’s true even for darker colours. The new paint can keep surfaces up to 16.6℃ cooler than normal paint. Using the paint on buildings in cities could help cool cities and reduce the electricity spent on air conditioning. A.The new paint has several other advantages. B.Structural paint could save as much money as possible. A 1 2 3 4 5 课 后 习 题 58 C.Researchers weren’t really planning on making paint. D.The size of them determines which colour gets reflected. E.Generally, it takes about 500kg of paint to cover an airplane. F.Normally, we never see the shapes because they’re so small. G.It will probably be a while before you can use structural colour. 【文章大意】 这是一篇说明文。文章主要介绍了科学家制作出一种新型油漆和这种油漆的优点。 1 2 3 4 5 课 后 习 题 59 1.___ F [解析] 由上文“Structural colour comes from tiny shapes on the surfaces of things like wings, feathers or shells.”可知,下面要说跟“微小形状”有关的话题,F选项中的small与空前的tiny相对应,能承接上文,符合文意。故选F。 1 2 3 4 5 课 后 习 题 60 2.___ C [解析] 由下文“They were trying to create a special mirrored surface. But they found super-small clumps of aluminum atoms (铝原子团块) on the surface. The researchers were upset because these small clumps messed up the mirror. Then they realized that the clumps made colours when light hit them. They decided to turn their discovery into paint.”可知,本空要说研究人员的打算,故C选项(研究人员并没有真正计划制造油漆。)能引起下文,且承接上文“Now scientists have used nanotechnology(纳米技术) to make paint with structural colour.”,符合文意。故选C。 1 2 3 4 5 课 后 习 题 61 3.___ D [解析] 由上文“The nanoparticles don’t really produce the colour. They simply reflect back a single colour.”可知,下面要说跟“反射”有关的话题,D选项中的reflected与空前的reflect相对应,故D选项(它们的大小决定了反射的颜色。)能承接上文,符合文意。故选D。 1 2 3 4 5 课 后 习 题 62 4.___ E [解析] 由上文“Because the new paint doesn’t have pigments, the paint is so light that it could reduce the amount of fuel used by planes and cars.”可知,下面要谈论重量,E选项中的airplane与空前的planes相对应,故E选项(一般来说,覆盖一架飞机大约需要500公斤的油漆。)能承接上文,符合文意。故选E。 1 2 3 4 5 课 后 习 题 63 5.___ A [解析] 由下文“Once we paint something with structural colour, it should stay for centuries. What’s more, the new paint doesn’t heat up like regular paint.”可知,本段主要介绍这种油漆的优点,故A选项(这种新油漆还有其他几个优点。)能概括本段主题,符合文意。故选A。 1 2 3 4 5 课 后 习 题 64 Ⅵ 语法填空(每小题1.5分，满分15分) The Great Barrier Reef (GBR) is the world’s largest coral reef system. 1._____________(locate) off the coast of Queensland in north-east Australia, it is one of the few biological 2.______________(structure) visible from space. The GBR is one of the seven wonders of the world and 3.________________(select) as a World Heritage Site in 1981. It is blessed with breathtaking beauty with 2,900 individual reefs and 900 picturesque tropical islands 4._______________(stretch) for over 2,000 kilometres. The reef structure is composed of billions of tiny organisms, Located structures was selected stretching 1 2 3 4 5 6 7 8 9 10 课 后 习 题 65 5._________ support a wide diversity of marine life.  The sheer size of the GBR, as well as its beauty, draws people from all over the world each year. A visitor can enjoy thrilling experiences including helicopter tours, glass-bottomed boat viewing, whale watching, swimming with dolphins and so on. For Australians, the reef is 6.________ source of pride and enjoyment, with the majority of tourists coming 7.____________(special) to Australia to see it. However, the GBR is 8.___________ threat. The exploitation (开发) a specially 1 2 3 4 5 6 7 8 9 10 which under 课 后 习 题 66 of oil and gas  is driving industrial 9._____________(expand) along much of the northern Queensland coast. Recently, a research group has arrived in Australia to assess the condition of the GBR 10._______ investigate concerns about damage to it. Environmentalists are demanding that all industrial development be stopped until an official review of the health of the GBR is carried out. expansion and 【文章大意】这是一篇说明文。文章主要介绍了大堡礁的美丽、多样性、旅游吸引力及其面临的环境威胁。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 67 1._________ Located [解析] 考查非谓语动词。空处需要非谓语动词作状语。be located意为 “坐落于……”,此处用过去分词作状语。该单词位于句首,首字母大写。故填Located。 2.__________ structures [解析] 考查名词复数。structure为可数名词,前有few修饰,应用复数形式。故填structures。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 68 3._____________ was selected [解析] 考查动词时态、语态和主谓一致。空处为句子的谓语动词。根据时间状语in 1981可知,句子用一般过去时,且主语和select之间是被动关系,主语为第三人称单数形式。故填was selected。 4.__________ stretching [解析] 考查非谓语动词。本题考查with的复合结构,即“with+宾语+宾语补足语”。空处为非谓语动词作宾语补足语。该动词和宾语2,900 individual reefs and 900 picturesque tropical islands之间为主动关系,所以用现在分词作宾补。故填stretching。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 69 5._______ which [解析] 考查定语从句。空处引导非限制性定语从句,修饰先行词tiny organisms。先行词指物,从句缺少主语,所以用关系代词which引导该从句。故填which。 6.___ a [解析] 考查冠词。a source of意为“……的来源”。故填a。 7._________ specially [解析] 考查副词。空处需要副词修饰动词coming。故填specially。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 70 8._______ under [解析] 考查介词。be under threat为固定搭配,意为“受到威胁”。故填under。 9.__________ expansion [解析] 考查名词。根据空前的industrial可知,空处需要名词作宾语。expand的名词形式为expansion“扩张”,故填expansion。 10._____ and [解析] 考查连词。根据句意可知,空前后为并列关系,故填and。 1 2 3 4 5 6 7 8 9 10 课 后 习 题 71 $