珊瑚礁阅读理解答案

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2023届新高考语文二轮复习语言文字运用专项练(11)

2023届新高考语文二轮复习语言文字运用专项练(11)

2023届新高考语文二轮复习语言文字运用专项练(11)阅读下面的文字,完成下面小题。

不管在自然界中,①____________,真简无处不在,功能多样,对人类有极其重要的作用。

②___________。

在自然界中,真菌对于降解动植物残体发挥着重要作用:在生活中,某种真菌能在数周内分解塑料,为解决塑料污染问题提供了思路。

作为生态系统的“清洁工”,真茵的清洁工具是其丰富的降解酶类。

真菌还是童叟无欺的“买卖人”。

真茵和植物的根系形成了菌根共生体系,植物能将自身光合产物的 20%提供给菌根真茵,而菌根真菌能介导 80%的植物磷及20%的植物氮供植物吸收。

真菌也是作威作福的“小霸王”。

理论上,( )但真茵中也有大量动物病原菌和植物病原菌,人如果误食毒蘑菇会产生恶心、呕吐等症状,甚至出现各种各样的幻觉。

总之,真菌具有多种多样的作用,我们应加强对真菌的了解,③___________,避离有害真菌,为大自然可持续发展贡献力量。

1.下列填入文中括号内的语句,衔接最恰当的一项是( )A.因为人类体温维持在36℃左右,大多数真菌在这个温度下无法生长,真菌对普通人的影响有限。

B.真菌对普通人的影响有限,因为人类体温维持在36℃左右,大多数真菌在这个温度下无法生长。

C.真菌对普通人的影响有限,大多数真菌在这个温度下无法生长,因为人类体温维持在36℃左右。

D.人类体湿维持在36℃左右,大多数真菌在这个温度下无法生长,因此真菌对普通人的影响有限。

2.在上文横线处补写恰当的语句,使整段文字语意完整连贯,内容贴切,逻辑严密。

每处不超过15个字。

阅读下面的文字,完成下面小题。

却具有“顶天立地"的特性;植物的幼芽总是。

①__________,向上追寻阳光和空气;植物的根总是向地而生,向下扎入土壤中吸收水分和养料。

而在微重力环境下的空间站,没有了上下之分,植物的根和茎也就失去了方向感,不知道朝哪个方向生长。

这时,②__________,植物的根和茎就会呈随机自由生长状态,变成一团乱麻。

阅读说明文《珊瑚岛》附答案

阅读说明文《珊瑚岛》附答案

阅读说明文《珊瑚岛》附答案①在波涛汹涌、无边无际的大海中,有着五色缤纷、绚烂多彩的岛屿珊瑚岛。

②我国南海中的岛屿大多是珊瑚岛,西沙群岛就是其中最著名的。

当你知道这些岛屿竟是一种微小的珊瑚虫在风浪袭击下造成的,不能不感到惊奇。

③在北京故宫中可以看到一些作为珍品陈列的珊瑚树,这是珊瑚虫用自己分泌出来的石灰质建造的公寓。

珊瑚树上有许多小孔,每个小孔都曾经住过一只珊瑚虫,它们总是群居在一起,造成的公寓多为灌木状,但是也有其他形状的。

每当生出一只新的珊瑚虫,它们就会造出一个新的房间,于是随着珊瑚虫的繁衍,珊瑚树也就像树木一样长高、分枝。

不过高度不会超出水面,因为珊瑚虫只能在水中生存,到接近水面时树枝就不再向上长而是像蘑菇一样四面铺开。

万丈高楼平地起,珊瑚虫的公寓是固定在海底上的,因而珊瑚虫也不能自己移动,只能住在小房间里,伸出几根触须来等待自投罗网的食物。

这种守株待兔的猎食方法,你也许觉得太笨,担忧它会挨饿吧!但是不必过虑,因为它们是有饭大家吃。

在一个公寓中,所有的珊瑚虫都被一根管子连接起来,任何一只珊瑚虫捕获了食物消化后,马上通过这根管子与大家共享食物的养料。

一只珊瑚虫捕获食物的时机少,成千上万只珊瑚虫的合作保证了大家都有足够的食物,得以生存繁殖下去。

④珊瑚虫虽然是定居的,但是在发育到一定程度后,便停顿生殖新的珊瑚虫,而变为产卵。

卵被海水带到别的地方发育生长,建造起新的公寓,使海中形成了密密的珊瑚森林。

而森林的空隙,便成为其他许多海生动物栖息之所。

⑤随着岁月的消逝,珊瑚虫不断死去,但公寓仍在。

那些森林中的生物在死亡后也留下了许多石灰质的硬壳、骨骼之类的碎屑,它们充填在密林的空隙中。

不断新生出来的珊瑚虫又分泌出许多石灰质,把这些东西胶结起来,逐渐形成结实的礁石、岛屿。

珊瑚礁形成的速度并不慢。

在我国的西沙群岛上,曾观测到每年增长三毫米的记录。

⑥风浪竭力破坏珊瑚虫的工作,它把许多珊瑚打碎,但这并未能阻止造礁工作的进展。

人教部编版四年级语文素材期末复习:课外阅读理解带答案解析

人教部编版四年级语文素材期末复习:课外阅读理解带答案解析

人教部编版四年级语文素材期末复习:课外阅读理解带答案解析一、部编版四年级下册语文课外阅读理解1.课外阅读。

珊瑚大海退潮了。

海面上露出了美丽的珊瑚,有红的,有白的,还有花的。

它们一丛一丛,有的像鹿角,有的像扇面,有的像菊花,有的像树枝。

人们看到珊瑚的色彩这样美丽,形状这样奇怪,以为它们是长在海底的植物。

其实它们不是植物,是珊瑚虫分泌出来的石灰质。

珊瑚虫是浅海里的一种小动物。

它们生活在海底洁净的岩石上,只有几毫米大。

它们长着花瓣一样的触手,触手中间有一个很小的“嘴”,猎取比它更小的生物当食物。

它们不断地分泌石灰质,这些石灰质连在一起,就形成了各种各样美丽的珊瑚。

珊瑚虫一代又一代地在岩石上生长,繁殖,死亡。

经过几万年,它们遗留下来的石灰质就成了珊瑚礁。

再经过几万年,有的珊瑚礁露出海面,就成了珊瑚岛。

我国的西沙群岛,就是由许多珊瑚岛组成的。

(1)在文中用横线画出描写珊瑚样子的句子。

(2)整体感知:这篇短文主要写了( )。

A.珊瑚非常美丽B.珊瑚是一种小动物C.西沙群岛是怎样形成的D.珊瑚是怎样形成的(3)根据短文内容选择正确的答案。

①珊瑚是()A.植物B.动物C.石灰质②哪个自然段描写的是珊瑚是( )形成的。

A.第2自然段B.第3自然段(4)珊瑚岛是怎样形成的?(5)读了这篇短文,你还有什么不懂的问题?请提出来,写在下面的横线上。

解析:(1)海面上露出了美丽的珊瑚,有红的,有白的,还有花的。

它们一丛一丛,有的像鹿角,有的像扇面,有的像菊花,有的像树枝。

(2)D(3)C;B(4)珊瑚虫一代又一代地在岩石上生长,繁殖,死亡。

经过几万年,它们遗留下来的石灰质就成了珊瑚礁。

再经过几万年,有的珊瑚礁露出海面,就成了珊瑚岛。

(5)珊瑚虫以什么为食?【解析】【分析】(1)、(4)考查对短文内容的理解能力。

解答时要带着问题细读短文整体感知文章内容,就能找到答案。

(2)、(3)解答此类题目关键是抓住各项表述的要点,仔细阅读短文内容,比较判断正误。

高考地理专题训练:珊瑚、珊瑚礁(附参考答案)

高考地理专题训练:珊瑚、珊瑚礁(附参考答案)

高考地理专题训练:珊瑚、珊瑚礁(附参考答案)1.阅读图文材料,完成下列问题。

珊瑚礁白化是由于珊瑚失去体内共生的虫黄藻或共生的虫黄藻失去体内色素而导致五彩缤纷的珊瑚礁变白的生态现象。

1998年和2002年曾两度发生过严重的珊瑚白化事件。

到了2014年,由于全球温度上升了0.9℃,珊瑚白化现象又一次大规模出现。

2015年,由于白化,澳大利亚大堡礁浅水区67%的珊瑚不幸死亡。

据材料结合所学知识分析珊瑚礁白化产生的根本原因及应对措施。

参考答案:根本原因:化石燃料的燃烧,森林的破坏,温室气体增加,全球气候变暖;措施:减少化石燃料的燃烧;优化能源消费结构,开发利用新能源;植树造林;加强宣传教育,树立环保意识;发展清洁燃料技术;回收利用CO2和CH4等温室气体;加强国际合作;制定法律法规,实现达标排放2.(2019·广东高三期末)阅读材料,回答相关问题。

涠洲岛位于广西北部湾中部地区,属亚热带季风气候。

岛屿北部、东部海岸主要为基岩岩滩,西部海岸以海蚀崖为主,该岛是全球珊瑚礁分布的北缘,珊瑚主要生活在热带海域,其生长条件较苛刻,最适宜温度为25℃—27℃之间,对水环境要求高。

随着气候变化,全球的珊瑚礁正在不断减少。

目前科学家正在涠洲岛海域进行人工繁育珊瑚多项实验,主要采用固定式苗圃和悬浮式苗圃进行海底珊瑚种植,由于海况复杂,工作人员在海底种植珊瑚面临许多困难和问题。

下图为涠洲岛等深线及珊瑚礁的分布图(阴影区为现代珊瑚覆盖度>5%)(1)推测涠洲岛西部和南部地区珊瑚分布较少的原因。

(2)分析气候变暖对涠洲岛珊瑚的影响。

(3)简述在涠洲岛海底种植珊瑚可能面临的困难和问题。

(4)指出涠洲岛珊瑚礁的可持续开发利用方向。

参考答案:(1)西部风浪大,侵蚀强,水较深,形成侵蚀海岸;南部为海湾,人类活动密集,水体污染较严重,海底以淤泥沉积物为主,不利珊瑚生长。

(2)气候变暖导致海水温度升高,影响珊瑚生存,导致珊瑚总量减少;使热带的珊瑚类型增加,成为热带珊瑚的避难所;珊瑚分布范围向北扩大。

阅读理解题练习(附答案)

阅读理解题练习(附答案)

阅读理解题练习(附答案)阅读理解题练习(附答案)多做阅读理解有助于提高个人对文章内容的理解能力和解答能力哦!以下是店铺为大家编辑的内容,欢迎大家阅读!《二十年后》阅读附答案二十年后[美]欧·亨利瑟瑟的寒风夹杂着雨意,一位巡警在马路上威风凛凛地走着。

他边走边一家家打量,还不时转过头,用警惕的目光向平静的通衢大道两头远望,那甩警棍的动作多姿多彩,再加上体格魁梧,却不带傲气,俨然一个太平天下的卫士形象。

走过一个路段的正中时,警察突然放慢了脚步。

一家幽暗的五金店的门口,有个男子斜靠门站着,嘴里叼了根烟,并没点着。

看到警察走过来,他抢先说话了。

“没事,警官,我在等一个朋友,”他镇定自若地说,“二十年前约好现在相见。

你听了觉得奇怪,是吗?你要是不放心呢,我可以把事情说给你听听。

二十年前,这家店是一家餐馆,叫大乔·布雷迪餐馆。

”“餐馆早五年就没有了。

”警察说。

站在门道里的那个人划着一根火柴点燃雪茄。

火柴光一亮。

只见这人长着个方下巴,脸色发白,目光倒炯炯有神,右边眉毛附近留着个小白伤疤。

领带扣针歪别着,上面镶着颗大钻石。

那人说:“二十年前的今晚,我跟吉米·韦尔斯在这儿的餐厅吃饭。

我们俩都是在纽约长大的,多年来亲如兄弟。

那时我十八,吉米二十。

第二天我要去西部闯荡。

在吉米看来天下似乎只有一个纽约。

那天晚上我们约定,二十年后,都将在此地、此日、此时再次会面。

”“这事倒挺新鲜。

时隔二十年才又见上一面,未免太久了点。

分手以后你知道你朋友的消息?”警察问。

那人答道:“说起来我们也有过一段书信往来,但过了一两年便断了联系。

但我相信,只要吉米还活着,他肯定会来赴约的。

”等朋友的人掏出一块漂亮的表,表盖上镶着小宝石。

“十点还差三分钟,”他说,“我们在这餐馆分手的时间是十点整。

”“你在西部混得不错吧?”警察问。

“你猜对了!吉米要是比得上我一半就好了。

他是个大好人,只是有点死板。

我发财可也不容易,非多长几个心眼不可。

中考语文阅读理解《藻类是动物还是植物》含答案

中考语文阅读理解《藻类是动物还是植物》含答案

中考语文阅读理解《藻类是动物还是植物》含答案阅读下面文章,完成下面小题。

藻类是动物还是植物宋立荣①藻类种类繁多,主要生活在水中,很多环境中都能见到它们。

藻类在生态环境中非常重要,也是固碳的重要生物。

②说到生物分类,大家的第一反应常常是植物或动物。

其实,还有一个特殊的类群,一度让分类学家颇为“头疼”,那就是藻类。

③提到藻类,大家一般会想起水面上分布的小小“颗粒”,它们随波荡漾,是鱼类的食物,也是水生态系统中的重要成员。

其实,藻类不止这些,藻类家族中有非常高大的成员,最大的藻——巨藻长度通常可达几十米到上百米,形似海带,与海带是近亲。

餐桌上常见的海带和紫菜,也是藻类。

④藻类通常是指一类没有真正的根、茎、叶分化,多数可进行光合作用,用单细胞的孢子或合子进行繁殖的生物。

⑤从生物分类学角度,藻类不属于特定的自然分类类群。

早期的分类学家根据藻类色素类型,将藻类分为蓝藻门、绿藻门、红藻门等。

虽然藻类的少数种类兼具植物光合自养以及动物异养和运动的特性,但传统上我们仍将藻类归为植物。

⑥藻类在生态环境中非常重要。

蓝藻是地球上最早的光合放氧生物,对地球表面从无氧的大气环境变为有氧环境起了巨大作用。

地球刚形成时,大气中缺乏氧气,二氧化碳的含量是如今的10—100倍。

在相当长时间内,蓝藻作为唯一的利用大气中丰富的二氧化碳进行光合作用放氧的有机体在地球上大量繁殖。

它们消耗二氧化碳,制造氧气。

大气中的氧气逐渐积累,在紫外线作用下,一部分氧气可转变为臭氧。

因此,大气层上空才会出现臭氧层,保护其他生命不被紫外线伤害,从而为地球上的需氧生物、真核生物的演化包括人类的进化和发展创造了必要条件。

⑦珊瑚礁的美丽颜色其实来自其体内的共生海藻。

海藻通过光合作用向珊瑚提供能量。

共生藻与热带、亚热带浅海珊瑚礁的主要建造者珊瑚虫互利共生,是珊瑚礁生态系统必不可少的元素。

同时,共生藻还扮演促进造礁石珊瑚钙化的重要角色。

如果共生藻离开或死亡,珊瑚就会变白,因失去营养供应而死。

(英语)高二英语阅读理解解题技巧(超强)及练习题(含答案)

(英语)高二英语阅读理解解题技巧(超强)及练习题(含答案)

(英语)高二英语阅读理解解题技巧(超强)及练习题(含答案)一、高中英语阅读理解1.阅读理解Coral reefs (珊瑚礁) are an integral part of sea life and sustain it by providing shelter and habitat to various organisms. They also supply and recycle nutrients as well as enable a growing fish population, along with other species, for a healthy and diverse ecosystem. However, the rise in average water temperatures due to climate change has resulted in more frequent and longtime coral bleaching (白化现象) events that damage their health, causing fish and other sea species to abandon them.In order to restore this delicate ecosystem, scientists from the UK and Australia conducted a study that involved using loudspeakers underwater near damaged coral reefs to make them sound healthy and attract fish, potentially kick-starting the natural recovery process of coral reefs and their dependent life forms. The location for this experiment was the Great Barrier Reef in the Coral Sea, found alongside the east coast of Queensland, Australia. The site is noted to have the largest coral reef system in the world."Healthy coral reefs are remarkably noisy places-the crackle of snapping shrimp and the whoops and grunts of fish. Young fish concentrate on these sounds when they're looking for a place to settle," said Steve Simpson, study co-author and a professor at the University of Exeter, UK.By using loudspeakers to copy such sounds, parts of dead coral reefs were found to attract twice as many fish, compared to places where no sounds were played. "These returning fish, are crucial for coral reefs to function as healthy ecosystems. Boosting fish populations in this way could help to kick-start natural recovery processes, preventing the damage we're seeing on many coral reefs around the world," said lead author, Tim Gordon.(1)What causes the phenomenon of coral bleaching?A.Diverse species.B.Noise pollution.C.Fishing industry.D.Climbing temperatures.(2)What approach is introduced to recover the coral reefs?A.Removing damaged coral reefs.ing loudspeakers to keep fish away.C.Building new homes for sea species.D.Playing certain sounds to appeal to fish.(3)Why are Steve Simpson's words quoted?A.To provide some findings of the study.B.To show the progress of the experiment.C.To explain reasons for the new approach.D.To give another solution to the problem.(4)What can we infer from the last paragraph?A.The attempts are in vain.B.Natural recovery is impossible.C.Initial success has been achieved.D.The coral reefs have returned to normal.【答案】(1)D(2)D(3)C(4)C【解析】【分析】本文是一篇说明文,由于气候变化导致的平均水温上升导致了更频繁、更长期的珊瑚白化事件,而为了恢复这一脆弱的生态系统,科学家们在受损的珊瑚礁附近使用水下扩音器,让珊瑚听起来更健康,从而能够吸引鱼类。

2021届中考英语阅读理解强化训练(六)环保类

2021届中考英语阅读理解强化训练(六)环保类

2021届中考英语阅读理解强化训练(六)环保类(一)Every year thousands of young people in England finish high school and then take a year off before they start work or go to university. Some young people go to other countries and work as volunteers.Volunteers give their time to help people. For example, they work in schools or hospitals, or they do something helpful for the environment.Paul, 18, comes from Wales. Next year he wants to go to university to study Chinese, but now he's living in Belize. Paul says, "I'm working with other people here to save the coral reefs (珊瑚礁) in the sea near Belize. The reefs here are beautiful, but if the sea water is polluted badly, the coral will die. I'm helping to do study on the coral and the fish that live around the reefs. All over the world, coral reefs are dying. We need to do something about the problem before it's too late. I'm staying with a family here. I help do some housework. I don't get any money, but that's OK. I love my work here, and I'm learning a lot about the people of Belize! When I finish my work, I want to stay here for another three months. I want to travel around Belize and Central America."1. What will some young people in England do after finishing high school?A. Go to work for money.B. Go to other countries and work as volunteers.C. Start work in universities.D. Go to university in other countries.2. Where is Paul living now?A. In England.B. In China.C. In Belize.D. In America.3. What is Paul doing with other people in the sea near Belize?A. Working to save the coral reefs.B. Studying Chinese in a university.C. Helping do some housework.D. Doing some research in Wales.4. From the passage, we know that the coral reefs_____.A. are not as beautiful as beforeB. will probably be sold for moneyC. may die because of the pollutionD. cannot live without fish in the sea5. What does Paul want to do after he finishes his work as a volunteer?A. Stay there for another year.B. Go back home to start work.C. Learn about the people at home.D. Travel around Central America.(二)When Megan Sorbo first spoke about her support for Florida black bears at a public meeting, she was 9. Now 14, this homeschooled student from Florida has helped to protect Florida's natural resources (资源). Several months ago, she asked to cut hunting as a way to save bears. She also asked to protect Split Oak Forest from a road building plan."Just because kids can't vote (投票) doesn't mean we don't care," she said. "Just because kids aren't doctors or lawyers yet doesn't mean our voices aren't significant."In the matter of Split Oak Forest, Sorbo once wrote to the mayor (市长), saying the road would harm the environment.Though the project went on, the mayor praised her effort. "We like your passion(热情) for the community," he said.Sorbo's mother, Tina Sorbo, believes her daughter's bravery comes from a trip that she took to the forest for a homeschool lesson at age 7. Sorbo saw a hunter who was killing bears. Seeing the animals in pain made her quite upset.Sorbo has also called on people to use bear-resistant iron bins that will make bears less likely to trouble humans in their homes. "Small things can add up to make something big," she said.1.Megan Sorbo has offered to help in Florida _____.A.protect natural resourcesB.build roadsC.raise bears2.The underlined word "significant" in the second paragraph means "_____" in Chinese.A.重要的B.微小的C.忽视的3.The mayor praised Megan Sorbo because _____.A.she gave the government useful adviceB.she was good at protecting the environmentC.she did something for her community actively4.Megan Sorbo would probably agree that _____.A.kids should try to go on trips a lotB.kids should do something for the environmentC.kids should learn more knowledge of nature5.The best title of the passage is "_____".A.Bears and forests in the communityB.A project to protect and forestsC.A teenage girl who about the environment(三)Thousands of years ago, Britain was covered by thick forests, home to many animals which no longer live in the United Kingdom. There were wolves and bears, many different kinds of deer and large wild cows. There were less than four million people. They lived in small villages protected by wooden walls from the animals outside.All this has changed, of course. Now the population of the United Kingdom has increased to sixty-five million. Three-quarters of Britain is covered with fields, towns or cities. Although 25 percent of land is countryside, new methods of farming mean that there are fewer birds and small animals living in fields than ever before. The United Kingdom is one of the few countries in the world that does not have a large wild animal that eats meat. In Scotland there are only 400 wildcats, but these are much smaller than wolves.Some people would like to change things, however! Some organizations and writers say that Britain needs to become more natural again. They suggest that trees and plants that grew in the UK before towns and cities were built should be allowed to grow again. They even say that large wild animals which have not lived in the UK should be helped to return and live wild. They call this "rewilding".Not everyone agrees. In the last twenty years, over one million trees which at first grew in Scotland have been planted and there are plans for more—but wild animals? Some people ask if wolves will attack sheep or even humans. They are also angry that rewilding might mean an end to walking in the hills which so many people enjoy. So far there are no wolves or bears in Britain's forests—but soon there might be!1.What was the population of the UK thousands of years ago?A. About 25 million.B. Over 65 million.C. More than 61 million.D. Not more than four million.2.Why are there fewer birds and small animals in fields in the UK?A. Because more trees have been planted.B. Because there are more large wild animals.C. Because pollution is much worse than before.D. Because people use new methods of farming.3.Which paragraph gives opinions from "rewilding" supporters?A. Paragraph 1.B. Paragraph 2.C. Paragraph 3.D. Paragraph 4.4.What are some people against?A. Living closer to nature.B. Planting more and more trees.C. Helping large wild animals return.D. Building more villages and towns.5.What's the best title for the text?A. Making Britain wild againB. A trip to wild BritainC. An introduction to BritainD. Protecting the environment(四)Pandas are in danger now. There are some reasons (原因) for this. One is that pandas are losing their homes. People cut down pandas' bamboo forests to make towns and cities. Another is that pandas have few baby pandas. Pandas have another big problem. A new report shows that there isn't much bamboo because of climate (气候) change. Bamboo is almost the only food pandas eat. An adult panda needs around 38 kilograms of bamboo every day.The study shows that nearly all the bamboo in China's Qinling Mountains may disappear (消失) one day because of climate change. Pandas will have nothing to eat. Scientist Liu Jianguo said that we must help pandas now, "It is difficult, but I think there's still hope, if we start now." Panda lovers feel sad about the bad news. Panda expert (专家) Chang Leng said it is time for the world to wake up and help pandas.(1).Which isn't the reason for pandas in danger?A.People cut down many pandas' bamboo forests.B.Pandas have few babies.C.People can't save them well.D.They can't find a lot of food.(2).People cut down much bamboo to ____ .A.make towns and citiesB.make bamboo modelsC.make bamboo forestsD.make food for people(3).An adult panda needs about ____ kilograms of bamboo every day.A.21B. 28C.38D.48(4).How do panda lovers feel about the bad news?A.Happy.B.Sad.C.Angry.D.Excited.(5).What's the main idea (主题) of Paragraph(段落)2?A.All the bamboo in China's Qinling Mountains disappears.B.The climate of the world is changing.C.We should start to protect pandas.D.Pandas should move to other countries.(五)The world uses about a thousand million(百万) tons of water a day. Water is a human right and everyone should have their share. Yet more than 700 million people around the world have trouble getting clean, safe water.Treating wastewater is a good way to provide fresh water for us. And it also helps the environment by keeping waste out of rivers and oceans. 80% of wastewater around the world is not treated at all, and it is running into oceans. But now we have got the technology to treat and reuse the wastewater.While 75% of our planet is covered with water, only about 2% is fresh water—that comes from rivers, lakes, ice and snow. The rest, 98% of the water, is in seas and oceans. It is too salty to drink. Then desalination businesses come in. More than 19,000 factories have been built around the world, mostly in coastal countries. They process (加工) more than 92 million tons of water every day. But the technology they use requires a lot of energy.Scientists are working to create a less costly technology. They want to produce 20 times more clean water and make sure everyone has enough. But for now, the world still faces each day with not having enough water for everyone.1.How many people have trouble in getting clean water around the world?A. Under 10 million.B. Only 19 million.C. About 92 million.D. Over 700 million.2.Treating wastewater helps the environment by _______.A.storing waste in ice and snowB.letting waste run into oceansC.keeping waste out of rivers and oceansD.sending waste to coastal countries3.What does the underlined word "desalination" in Paragraph 3 mean?A.远洋运输B.潮汐发电C.食盐销售D.海水淡化4.At present, the technology to process water _______.A.needs much energyB. saves much moneyC. satisfies everyoneD. causes pollution5.What can we infer from the last paragraph?A.Water should be a human right.B.The water problem is still serious.C.Our planet is covered with water.D.Everyone has enough clean water.(六)Some of the greatest problems we face today are the destruction (破坏) of our environment. Brown clouds, polluted water, endangered wild animals...these problems seem so huge.So my family do what we can. We take cloth bags to stores instead of using plastic bags. We walk whe re we don’t have to drive.But does it do any good? When I am the only one in line at the market with cloth bags, am I doing any good?Does my walking to stores make any real difference to the world?I recently learned something about flamingos (火烈鸟) which like to get together in groups ofa thousand or more. Every year, when the time comes for migration (迁), a few of them first take off from the lake. But none of the others seem to notice, so the small group returns. However,the next day they try again. This time a few more fly along with them, but most of them still pay no attention, so they return again. They try for several times. Every time a few more birds join in but since the thousands of others still take no notice, the great migration plan is once more stopped.Then one day something changes. The same small group of birds once again starts flying and a small number more join in just as before, then more. Finally, they all take flight and the migration really begins. What a spectacular (壮观的) sight it must be — thousands of flamingos taking off into the sky at once!A few can make a difference. Even if you’re the one to take the first step, and continue trying, others will someday take notice and together we will solve even our greatest problems.1.Where would you most probably read this passage?A.A guidebook.B.A movie poster.C.A personal blog(博客).D.A science magazine.2.Why does the writer use cloth bags in stores?A.Because he wants to do some good to the environment.B.Because he thinks plastic bags are more expensive.C.Because there are only cloth bags in stores.D.Because all the people use cloth bags in stores.3.Why does the small group of flamingos return to the lake?A.Because they are very tired.B.Because they can’t f ind food in other places.C.Because they don’t know where to go.D.Because the others don’t fly along with them.4.Which of the following is TRUE according to the passage?A.The writer and his family never use cloth bags.B.Flamingos like to get together in groups of a thousand or more.C.Brown clouds and polluted water are the only problems we face today.D.Flamingos never travel to other places every year.5.What’s the writer’s purpose of writing this article?A.To show that the writer loves to see the migration of flamingos.B.To tell readers to continue trying and it can make a difference.C.To introduce a special kind of flamingos to readers.D.To show that there're many problems in the world.答案以及解析(一)答案:1-5BCACD解析:1.细节理解题。

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珊瑚礁阅读理解答案
珊瑚礁阅读理解答案
珊瑚礁
①珊瑚丛就像是海洋里的热带雨林,它们还有个美丽的称谓叫作海石花,一丛珊瑚是由许多珊瑚虫聚集一起形成的。

珊瑚虫死后留下石灰质的骨骼,一代代的骨骼堆积起来,构成了珊瑚礁这个海底生态系统坚硬的基础部分。

②珊瑚灿若鲜花,因为有一些藻类共生在珊瑚虫的体内,为珊瑚藻提供食物。

当藻类受外界环境影响而消失后,珊瑚就会失去美丽的颜色而变白(实际上是珊瑚虫骨骼的颜色),这就是珊瑚的白化现象,近年来在世界各地都发现了珊瑚的白化现象。

造成珊瑚白化的原因可能在于海水温度的升高,另外某些疾病或者缺氧环境也能导致珊瑚死亡。

③印度尼西亚和牙买加珊瑚礁的衰亡,可以看成是珊瑚礁在世界范围内走向没落的缩影。

在印度尼西亚,珊瑚不仅仅意味着美丽的自然风景,它也是这个千岛之国财富的来源之一。

然而,1997年12月,印度尼西亚明打威群岛附近绵延数百公里的珊瑚礁突然大面积死亡了。

④这是一次非常严重的事件,灾难已经过去6年了,珊瑚礁仍然没有恢复。

研究小组的成员之一艾布拉姆说。

迅速杀死珊瑚礁的直接凶手可能是赤潮。

当赤潮发生时,整个海面被大量红色的海藻覆盖。

这是一种灾难:有毒的藻类会疯狂地繁殖,消耗掉本应属于海洋中其他动植物的氧气,包括珊瑚礁在内的生物都有可能因赤潮而窒息死亡。

事实也是如此,当年明打威群岛附近的海域确实发生了赤潮。

⑤是什么造成了赤潮呢?他们把目光投向了1997年印度尼西亚发生的一场自然灾难:热带雨林的大火。

这场持续了几个月、绵延上百万公顷的大火释放出的烟尘让整个东南亚地区都受影响。

这场大火不仅释放出了大量的二氧化碳,还释放出了藻类喜爱的美味超过1万吨的铁以及其他营养物质。

⑥大火把植物体内和土壤中的营养物质以烟尘的形式释放到了大气中,当这些尘埃落定时,它们会把周围的环境变得营养丰富。

艾布拉坶在接受采访时说,我们的研究发现,来自热带地区火灾产生的营养物质能够产生特大赤潮,足以杀死数百公里范围内的珊瑚礁和大量鱼类。

这个研究小组的论文第一次表明,营养物质能够对海洋产生影响并导致珊瑚礁和其他沿海海洋生态系统的浩劫。

⑦对于科学家而言,解除珊瑚礁面临的危机比发现这些危机更困难。

即便人们能够立即制止珊瑚的疾病和白化现象,珊瑚礁仍然处于一种长期的危机中。

如果我们能够退回去实施强有力的管理,那么我们可以恢复(珊瑚礁的)生态系统,但是这取决于政治意愿、资金和其他很多难以预料的影响;在目前的情况下,对珊瑚礁的研究以及
管理的资金和政策没有任何变化,前景确实非常黯淡,我们眼睁睁地看着大片珊瑚礁死亡,而它们500年前还存在。

本杰戴尔对前景表示悲观。

6.对珊瑚礁的理解,不正确的一项是()
A.珊瑚礁是海底生态系统坚硬的基础部分,由珊瑚虫死后留下的石灰质骨骼,历经一代代堆积而形成的。

B.某些疾病或者缺氧环境能够导致珊瑚死亡。

C.当赤潮发生时,有毒的藻类会疯狂地繁殖,消耗掉本应属于海洋中其他动植物的氧气,能够使珊瑚礁窒息死亡。

D.制止珊瑚的疾病和白化现象,就能解除珊瑚礁的危机。

7.下列对文章内容的理解,不正确的一项是()
A.本杰戴尔认为来自热带地区火灾产生的营养物质所导致的特大赤潮,能够杀死数百公里范围内的珊瑚礁和大量鱼类。

B.在印度尼西亚,珊瑚不仅是一道美丽的自然风景,也是该国财富的一个来源。

C.1997年印度尼西亚的.那场热带雨林大火导致了明打威群岛附近的海域赤潮的发生。

D.目前,对珊瑚礁的研究和管理,由于资金和政策的问题,正处于极端的困境中。

8.根据文章内容,以下推断正确的一项是()
A.因珊瑚礁灿若鲜花,颜色各异,海洋才呈现出五彩缤纷的海底世界。

B.珊瑚礁的衰亡使印度尼西亚这一千岛之国的财政收入受到影响。

C.特大赤潮产生后,赤潮范围里的包括珊瑚礁在内的海洋生物将灭绝。

D.目前,人们加强了对珊瑚礁的研究,恢复珊瑚礁的生态系统虽然悲观,
参考答案
6、D(最后一段即便人们能够立即制止珊瑚的疾病和白化现象,珊瑚礁仍然处于一种长期的危机中。

A在第一段;B在第二段;C在第四段)
7、A(这是艾布拉姆的观点)
8、B(A珊瑚礁只是使海底世界五彩缤纷的一部分,故说才会不对;C以部分代整体的错误,第六段中说赤潮杀死大量鱼类。

D见第六段是在目前的情况下,对珊瑚礁的研究以及管理的资金和政策没有任何变化。


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