阅读下列材料，在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。

    Being a veterinarian(兽医), I had to examine a ten-year-old Irish Wolfhound named Belker. The dog's owners, Ron, his wife Lisa, and their boy Shane, loved Belker very much.

    I examined Belker and found him (die) of cancer. I told the family we couldn't do for Belker, and offered to perform the euthanasia(安乐死) procedure in their home.

    As we made arrangements, Ron and Lisa told me they thought   would be good for six-year-old Shane to watch. They felt Shane might learn something.

    The next day, Belker's family surrounded him. Shane seemed so calm, petting(拍) the old dog for the last time, that I wondered if he understood was happening. Within a few minutes, Belker slipped (peaceful) away.

    The little boy seemed to accept it without any difficulty. We sat together after Belker's death, (wonder) why animal lives are shorter than human lives. Shane, having listened quietly, said, “I know .”

    (surprise), we all turned to him. What he said next amazed me. It has changed my life.

    He said, “People are born so that they can learn how to live good life—like loving everybody all the time and being nice, right?”

    The six-year-old boy continued, “Well, dogs already know how to do that, they don't have to stay as long.”

The boy is so shy that he can't ________very well ________others.

阅读下面的文字，完成下列小题。

流凌的黄河

单振国

站在数九寒天的黄土高原上，站在大雪纷飞的穹宇下，我看黄河。黄河，像一条蜿蜒浩荡的银色巨龙，正静静地、静静地流动着，在雪花无声无息里流动，在冰凌悠悠漂浮中流动。

没有浮躁的喧哗，没有烦嚣的不安，没有轻薄的浪花，甚至连一点儿脚步声都没有。有的，只是雄浑磅礴的气势，泰然自若的风骨，沉着稳健的向前，战胜一切的自信！

满河满河的冰凌，一块又一块，或大或小、或薄或厚，挤挤挨挨、满满当当，镶着深冬的凛冽，披着大雪的晶莹。铺天盖地，浩浩荡荡。冷流暗卷，冰水回湍。深不可测，清冽无底。没有鸟鸣虫吟、红尘碎语，没有争锋斗狠、狂放泼野，唯有静静地流动。漂浮着满河满河浩阔壮观的北方冬天。满河的冬天在满河冰凌如朵朵莲花般的簇拥中，仿佛停止了季节呼吸，收敛起三九风霜，好像是一条蛰伏入眠的巨龙。

啊，雪落黄河静无声。

静无声的黄河蓄积着体能，储存着力量，淬炼着胆魄，又慢慢苏醒，慢慢在蛰伏中蠕动，一直向前蠕动。恍然，唰地彻底醒来，鼓起排山倒海般巨大膂力，腾空飞旋，以四两拨千斤的手臂，轻轻一揽，迅疾带走一大堆一大堆企图阻遏她前进的冰坝。这不，远远地，咔嚓一声，犹如霹雳横空、巨崖崩塌，令人惊心动魄、寒毛悚立。严寒精心高垒起的一座冰山訇然碎裂，没入宽阔深邃的河水中。冬天顷刻惊飞四散，朔风黯然销声匿迹，一切的寒冷已不叫凛冽的寒冷，所有的冬天不再喧哗自己是冬天。唯有流凌的黄河，包容天地，包容山川，包容冷暖，包容这壁立千仞的晋陕峡谷，再一次沉浸在那空悬高天的沉沉静默中。

雪是越下越大，白花花的，一朵一朵飘着，漫天漫地，稠稠密密。雪吞咽着山川村落、烟火人间，吞咽着高原大地、日月星辰，仿佛把整个北方的冬天都吞咽到她茫茫的白幕之中。但她吞咽不了黄河，黄河依然静悄悄地、稳如泰山地流动着。站在高原的更高处看流凌的黄河，又像是一条从天而落的银河，舒缓而下，连接天地。河，睡在天堂之上，天幕混沌、天界迷茫、天地一色，唯有梦是那样亘古遥远、瑰丽雄浑，那样多彩缤纷、近在眼前，只轻轻地飘浮在纷纷扬扬的雪花中，向着无尽的远方。

晋陕峡谷，犹如大地哗啦扯开的胸膛，在白花花的雪野里，大幅油画般铺开，铺成雪原莽莽、雪峰巍巍的浩大背景，黄河被衬托得更加气势磅礴。看吧！大河上下，好一派雄浑壮观的景象。此刻，任何华美的辞藻，都没有力量嵌进这天地无声却令人心海咆哮的壮丽诗章中；任何高亢的赞美，都显得是那么的苍白微弱、轻如飞羽。只有流凌的黄河，在无声无息中永恒汇聚着、充盈着、释放着排山倒海的力量，凛然高耸起不可欺、不可辱、不可侵的血气，昂然高扬出战胜一切阻遏、一切对手的霸气，一往无前，势不可挡！

看，流凌的黄河，我瞬间强大、瞬间雄起，生活中所有的艰难险阻、荣辱得失、恩怨不平，竟然轻盈得像一绺飞散的冷雾，在黄河吞越天地冰霜的宏大气势中，沧海一粟般飞进这流凌的河水中，无影无踪，无声无息。此时此刻，灵魂骤然震颤，心海更加咆哮，仿佛站在黄河与高原交响曲那最震撼天地的音符上，由不得要往远看、往大看。我想，在这个蓝色的星球上，被这样一条裹挟着黄土，磅礴浩荡、摧枯拉朽、势不可挡的大河哺育的民族，一定有着与她同样的优秀基因，同样的精神力量和胆魂气魄！我分明一下子看到了中华民族五千年自强不息、不屈不挠、勇往直前、敢于争胜的始祖精神。我敬仰黄河，虔诚地跪在黄河冰冻铁硬的滩头，深深地磕了一个响头。

就在我抬头的刹那，太阳拨破云海，红彤彤、圆润润、热腾腾的，带着新的春天的勃勃生机，在流动的冰凌上折射出万道金光。远远望去，寥廓的黄河滩上，飞起一圈又一圈绚丽耀眼的彩虹！

—Do you think the phone is genuine?

—I don't think it________be a fake，as this shop has a very good reputation.

N_A是阿伏加德罗常数的值，下列说法正确的是（   ）

在相同条件下，2mLX（气）跟5mLC₂（气）恰好完全反应，生成4mLAC₂（气）与2mLB₂C（气），则X的分子式是（     ）

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Dear Dad,

    On this date of your 50th birthday, Mom gave me the letter you wrote me when I was born 18 years ago. In your letter, you (wish) me to be strong-minded and successful. You were looking forward to  (see) me fight for my future bravely and do well for myself and others.  

    After reading this letter, I feel quite  (shock) at your expectation on me. I also feel shamed for not having performed well to meet your demand. I still remember when I was in primary school, I failed  (apply) myself to studying. I was addicted  computer games. As a consequence, I soon became the last one in my class. You didn't abuse me at all. On the contrary, you taught me that studying was   most important object at the moment and encouraged me to study hard. Only when I have read your letter did I realize that I behaved so  (bad) at that time.  

    I can't help (express) my gratitude and sending my best wishes to you. Wish you health and (happy). I promise that I will spare no effort to satisfy your demand of being a brave and  (success) person.  

含碳、氢、氧的有机物X的球棍模型为 。下列关于X的说法错误的是(   )

On April 25th,2007，thousands of Russians went to say farewell to Boris Yeltsin—the country's first popularly ________leader.

下列各物质所包含的原子物质的量最多的是(NA表示阿伏加德罗常数)( )

任务型阅读。

    If you can find a tree which has been cut down，you will see many rings，or circles，on the base of the trunk.By learning to read these rings，you can find out about the tree's life.

    The number of rings tells you how old the tree is.Each year，new wood is formed on the outside of the tree.This new wood is light in color when the tree is growing in spring and summer，and dark in winter when the tree is not growing much.So，if you count the rings of dark­or­light colored wood，you can often find out how old the tree is.

    You can also tell which years have been good years and which years have been bad years.When the light­colored rings are very wide，it means that the tree has been growing quickly that year.If the rings are narrow，it has been growing slowly.If the rings on a tree trunk were greatly magnified，you would be able to see why the rings are light­colored when the tree is growing quickly and dark­colored when the tree is growing slowly.The tree trunk is made up of microscopic tubes，like some pipes，carrying water from the soil，through the trunk，and up to the leaves.They are wide and thin­walled when the tree is growing quickly and they are carrying a lot of water.They are narrow and stuck together when the tree is not growing so quickly.

    When a tree is old，the tubes in the centre of the tree don't carry water.The walls of the tubes have become thick with materials which have stuck along them over the years，forming a kind of wood called“heartwood”．This kind of wood is darker in color than the young，growing wood on the outside of the tree.

    You don't very often see whole tree trunks which have been cut across.But once you learn to read a cross section of the wood，you can see much more in wood which has been used to make boxes，houses and other things.

    In most wood，instead of seeing the trunk cut across，you are seeing it cut along its length.Because you don't see the whole tree，you can't tell how old it is.

Title： of a Tree

General information		Old trees
Items	Facts	Items	Facts
Where can rings be seen	On the of a trunk	The tubes in the centre of the tree	Don't carry water
The of rings	Helps us know about its age	The walls of the tubes	Become ； Form
light­colored rings	Show the tree grows quickly
Narrow rings	Mean the tree grows slowly
Microscopic tubes	Function	Carry
	Features	Wide and when growing quickly
		Narrow and stuck together when growing

—Excuse me, but could I trouble you for some change?

—_______. Will pennies do?

短文改错

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺调处加一个漏字符号(∧）)，并在其下面写上该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1每处错误及其修改均仅限一词。2．只允许修改10处，多者（从第11处起）不计分。

    I'm a 17-year-old senior student from China. While surfed the Internet, I have found that your organization will hold a summer camp in Singapore. With greatly interest, I'd like to apply for them. I'm an outgoing girl who like communicating with others. I could speak English well. My written English is excellent, either. I wish to join in the activities. For one thing, I'm willing to introduce China to other students from all over world; for another, I expect to learn from more about other countries. In addition, I'd like to make friend. The chance is so precious as I'm really looking forward to your approval.

如图两瓶体积相等的气体，在同温同压时瓶内气体的关系一定正确的是（　　）

阅读下面的文言文，完成问题。

范成大，字至能，吴郡人。绍兴二十四年，擢进士第。隆兴元年，累迁著作佐郎，除吏部郎官，言者论其超躐，罢。起知处州。处民以争役嚣讼，成大为创义役，随家贫富输金买田，助当役者，甲乙轮第至二十年，民便之。其后入奏，言及此，诏颁其法于路。处多山田，梁天监中作通济堰溉田二十万亩堰岁久坏成大访故迹迭石筑防置堤闸四十九所立水则上中下溉灌有序民食其利。隆兴再讲和，失定受书之礼，上尝悔之。迁成大起居郎，假资政殿大学士，充金祈请国信使。国书专求陵寝。上面谕受书事，成大乞并载书中，不从。至燕山，密草奏，具言受书式，怀之入。初进国书，词气慷慨，金君臣方倾听，成大忽奏曰：“两朝既为叔侄，而受书礼未称，臣有疏。”搢笏出之。金主大骇，曰：“此岂献书处耶?”左右以笏标起之，成大屹不动，必欲书达。既而归馆所，金主遣伴使宣旨取奏。成大之未起也，金庭纷然，太子欲杀成大，越王止之，竟得全节而归。知静江府。广西窘匮，专藉盐利，漕臣尽取之，于是属邑有增价抑配之敝，诏复行钞盐，漕司拘钞钱均给所部，而钱不时至，成大入境，曰：“利害有大于此乎?”奏疏谓： “能裁抑漕司强取之数，以宽郡县，则科抑可禁。”上从之。数年，广州盐商上书，乞复令客贩，宰相可其说，大出银钱助之。人多以为非，下有司议，卒不易成大说。除四川制置使，凡人才可用者，悉致幕下，用所长，不拘小节，其杰然者露章荐之，往往显于期，位至二府。除端明殿学士，寻帅金陵。会岁旱，奏移军储米二十万振饥民，减租米五万。绍熙三年，加大学士。四年薨。成大素有文名，尤工于诗。自号石湖，有《石湖集》行于世。 (节选自《宋史.范成大传》)

【注释】继“绍兴和议"(1141)后，隆兴二年(1164年)宋金再订和约，改“君臣之国”为“叔侄之国”，宋递交金国文书改“奉表”为“围书”，却没有改“受书之礼”(宋国起立受全国书)。

下列化学用语书写错误的是（    ）

请完成下列填空：

某中学将于2020年5月27日举行2020届毕业生成人礼仪式。以下是X班班委会代表同学向全体家长发出的邀请信。其中有两处词语运用不简明，三处词语运用不得体，请指出并修改。

尊敬的各位家长：

①我校将于2020年5月27日早8时在操场举行2020届毕业生成人礼仪式，我们谨代表班级全体同学诚邀家父家母到场观礼。②l8岁，意味着责任、义务，意味着勇敢、担当。③在这个庄严时刻，您的到场实属是对我们最大的鼓励。④成人之际更要感激父母的养育之恩，届时我们还将惠赠礼物一份。⑤请您在百忙之中抽出时间拨冗出席，对此我们敬谢不敏。

Ⅹ班班委会

2020年5月16日

词语运用不简明的两处是：

改为    改为

词语运用不得体的三处是：

改为    改为    改为

关于x、y的二元线性方程组的增广矩阵经过变换，最后得到的矩阵为 ， 则x+y= ．

The army officer                  his men to fire as soon as the enemies came up.