8AU3-U4阶段检测
初二英语U3-U4测试卷
一、单项选择
( ) 1. —Will you get there by ____ taxi? —No, we’ll take _____ underground.
A. a; an
B. /; an
C. a; the
D. a; /
( ) 2.—Why not ___ the school trip to Beijing Amusement Park?
It’s helpful for you.—_____. I’ll let you know about it as soon as possible.
A. join; Thanks
B. take part in; You’re welcome
C. join; Good idea
D. join in; No, I won’t
( ) 3.—Please don’t be late for the meeting next time, Jim. It’s not bad for you.
—Sorry, I ____. I’m sure I _____ school on time from now on.
A. don’t; get to
B. won’t; reach
C. don’t; arrive
D. won’t; arrive at ( ) 4.A fashion show will ___ in our school next week. Most of the student from Class 1, Grade 8 will ___ us.
A. happen; join in
B. take place; join
C. happen; join
D. take place; join in ( ) 5.___ lovely the weather is! _____ good time we are having!
A. How; How a
B. What a; What
C. How; What a
D. What; What a
( ) 6.____ the morning of October 1st, a great number of people gather (聚集) at ___ to watch our national flag raising.
A. In; the Summer Palace
B. On; Tian’anmen Square
C. At; the Great Wall
D. On; the Palace Museum
( ) 7.It’s rush hour(交通高峰) now, and there is _______ traffic on the city roads.
We’d better_______ a moment.
A. much too, to wait
B. too much; wait
C. few; waiting
D. a little; to wait ( ) 8.You will find it __ to read some interesting story-books when you feel ____.
A. useful; terrible
B. useless; bad
C. useful; terribly
D. useless; badly ( ) 9.—Your coat looks very nice. What is it made _____?
—Cotton. And it is made ______ Guangzhou.
A. from; in
B. of; in
C. from; on
D. of; on
( ) 10.The journey from my home to our school ___about twenty minutes on foot.
A. takes
B. spends
C. costs
D. pays
( ) 11.Our English teacher always tries _____ one minute in his class. His class is very practical and interesting.
A. not spend
B. to not spend
C. don’t spend
D. not to spend
( ) 12.—Do you plan to watch a football league match this Sunday afternoon, Mary?
—I’d love to, but the _______ of ticket is too high for me.
A. money
B. pay
C. cost
D. fare
( ) 13.—I’m sorry I _______ my exercise book at home.
—Don’t forget ________ it to school tomorrow morning, please.
A. left; bringing
B. left; to bring
C. forgot; bringing
D. forgot; to bring ( ) 14.—I like playing chess, but it ________ much time.
—Yes, you’re right. So you _________ patient.
A. spends; had better
B. costs; had better be
C. takes; should be
D. needs; would
( ) 15.______!. The bus is coming to you.
A. Take care
B. Come on
C. Look after
D. Go on
( ) 16.—Mum! Can I stop doing my homework and make some food? I’m hungry.
—________________.
A. No. I’m too busy
B. OK. Let’s make some sandwiches
C. That’s correct.
D. I’m hungry, too.
( ) 17. —When will the train ______? —At about ten a.m.
A. arrive
B. arrive in
C. reach
D. get
( ) 18. —Are you able to fix your bicycle, Andy?
—No. I’m ___ that I can fix it myself.
A. certain
B. uncertain C, possible D. impossible
二、完形填空。
James sat outside waiting for the interview(面试). He was so 19 that he did not know what to do with himself. A woman 20 him was already in there for more than an hour. And she looked confident(信心) when she went in, not like James. He felt 21 that he already got the job. The problem was that he wanted this job so much. It meant 22 to him. He had thought about it so much before the day of the interview.
He imagined(想象) himself performing successfully at the interview and the interviewer(面试官) 23 him the job at once. But now here he was feeling terrible. He didn’t remember all those things he planned 24 to say. Even for a moment, he almost decided to get up and leave. But no, he had to do this. It 25 him so much time to think it over that he could not 26 like that. His hands was hot and sticky(出汗) and his 27 felt dry.
At last, the door of the office opened. The woman who went in an hour ago earlier came out. She looked very 28 with herself. She smiled at James as she passed by. It made him 29 . He said to himself “Take it easy. I’ll try my best!”He got up, breathed deeply(深呼吸) and went up to the office door.
A few days later, there was a letter for him and it 30 that he got the job. ( ) 19. A. excited B. shy C. nervous D. happy
( ) 20. A. after B. with C. past D. before
( ) 21. A. sure B. glad C. unhappy D. angry
( ) 22. A. anything B. everything C. nothing D. enough
( ) 23. A. offered B. got C. made D. took
( ) 24. A. planned B. kept C. wanted D. hoped
( ) 25. A. cost B. used C. took D. spent
( ) 26. A. lost B. gave up C. pass D. gave away ( ) 27. A. head B. nose C. mouth D. eyes
( ) 28. A. angry B. interested C. glad D. happy
( ) 29. A. comfortable B. uncomfortable C. certain D. uncertain
( ) 30. A. wished B. said C. told D. wrote
三、阅读理解
(A)
How do you feel when you have to make a report in front of your classmates? What about when you go to a birthday party? Do you get really shy?
Shyness means being nervous when you are around other people. Everyone has this shyness as they grow up? Many people have red faces and talk in broken (破碎的) sentences when they are the centre of attention(注意). It’s OK if it takes you a while to feel yourself again when you go to a new place or meet strangers (陌生人).
In fact, everyone gets a little shy sometimes. It’s just a case of how much.
Try to stop feeling negative (消极的) about yourself. If shyness doesn’t stop you from doing something you want to do, being shy is not a problem. Some experts(专家) say shy people are not only clever, but also better at working with others because they think more and talk less. Some great people in history were shy, too.
You see, being shy is not all bad. But remember not to let good chances go by just because of it! Your shyness will pass. When you grow up, you will become brave enough to do it! There is nothing to be afraid of!
Remember, though you’re shy, you do not lack (缺乏) confidence. Come on, shy people!
( ) 31.We can learn from the second paragraph that ______________.
A.people all get a little shy sometimes
B.everyone may feel shy when they are alone
C.people won’t get shy any more when they grow up
D.everyone has red faces when they go to a new place or meet strangers ( ) 32.Which of the following is true according to the third paragraph?
A.Shy people are better to work with.
B.Shyness stops people from doing anything well.
C.If you are a shy person, you will become a great man.
D.If you can sing a song at a party, you are not a shy person.
( ) 33.What should shy person do if they want to stop feeling shy?
A. Let good chances go by
B. Be sure of themselves and practice
C. Think more and talk less
D. Speak to all the other people around
(B)
When I was growing up, I had an old neighbor, Dr. Gibbs. He didn’t look like any doctor I’d ever known. He never invited us to play in his yard, but he was s very kind person.
When Dr. Gibbs was not saving lives, he was planting trees. He owned a large field and wanted to make it a forest. The good doctor had some interesting ideas about planting trees. He never watered his new trees. Once I asked why. He said that watering plants spoiled(糟蹋) them, and that if you watered them, each baby tree would grow weaker and weaker, so you had to make things difficult for them and pick out the weaker trees early on(在开始阶段).
He talked about how watering trees made for shadow roots(影子根), and how trees that were not watered had to grow deep roots in search of water under the earth by themselves. Deep root(根部) were very important.
So he never watered his trees. He planted an oak(橡树) and, instead of watering it every morning, he’s beat it with a roll-up newspaper. I asked him why he did that, and he said it was to get the tree’s attention(注意力).
Dr, Gibbs died some years after I left home. Every now and then, I walked by his house and looked at the trees that I watched him plant about 25 years ago. They are very bog and strong now.
I planted some trees a few years back and carried water to them for a whole summer, after two years of caring too much, whenever(无论如何) a cold wind blows in, they shake(摇晃) a lot.
Every night before I go to bed, I check on my two sons. Mostly I pray(祈祷) that their lives will be easy. But lately(最近) I have been thinking that it’s time to change my pray. I know children are going to face difficulties. There is always a cold wind blowing somewhere (某些地方), so what we need to do is to pray for roots that reach deep into brave(勇敢的), so when the rains fall and wind blow, we could face it strongly and won’t be beaten down(被击倒).
( ) 34.We know from the reading the doctor ______________________.
A. didn’t know how to plant trees well
B. wasn’t good at his medical job
C. has his own ways of planting trees
D. had nothing to but plant trees ( ) 35.When Dr. Gibbs said “pick out the weaker trees early on”, he meant that people______.
A. should easily find out some weak trees at the beginning
B. would choose the weak trees to water earlier
C. would send the weak trees to his patients (病人) later
D. would not plant weak trees so early any more
( ) 36.The passage tells us that the writer ____________________.
A. should beat his trees with a rolled-up newspaper
B. didn’t have a large field
C. didn’t often water trees
D. took too much care of his trees
( ) 37.The writer wants to change his pray and hopes that _____________.
A. his trees will be stronger than Dr. Gibbs’
B. his trees will not be beaten down
C. his sons will be better at planting trees
D. his sons will be able to face difficulties
( ) 38.Which can be the bet title of the reading?
A. Watering Trees
B. Growing Roots
C. Doctor and his neighbor
D. Father and His Children
(C)
DIY, which means Do-it-yourself, is quite popular in the UK. Lots of stores and supermarkets sell DIY things. TV programmes show people how to do DIY work.
English people like DIY. There is a saying in the UK—“An Englishman’s home is his castle(城堡).”Large number of people spend their holidays making their homes beautiful “castles”. If there is anything that needs fixing around their houses, such as painting the walls or putting in a new shelf, they will do jobs themselves. They share DIY experiences with their friends. More and more people have discovered(发现) the joy of DIY. Sometimes people also do DIY for saving money. With the economic downturn(经济低迷) at present, people can not afford (付不起钱) to buy a bigger house. They are looking at how they can make their houses better without spending a lot of money. It is not so surprising that DIY is so popular.
DIY can be difficult. There is a large market (市场) for DIY furniture which people need to put together themselves with a few basic tools. However, people often find it not easy to build a piece of furniture because they can not understand their instructions. Sometimes the instructions are simple and clear, but the furniture itself is difficult to build. One thing is for sure. Though most DIY projects are started with the best intention(目的、意图), many of them may not get finished. DIY can also be dangerous. For example, anything electrical (带电物品) should be done by a professional(专业的) worker. Unluckily, many people don’t care about this
warning(警告) and put themselves in danger. It is reported that in just one year over 230,000 people were hurt while doing DIY in the UK, including (包括) 41,000 who fell off the ladder.
Therefore, DIY can not only bring us fun and help us save money, but it is not always as easy as it is thought to be if we bite off more than we can chew. Maybe factories should make products(产品) that are easier safer for us to do DIY.
( ) 39. How do English people spend their holidays according to the passage?
A. Making their homes beautiful.
B. Visiting their friends.
C. Traveling all over the world.
D. Making a lot of money.
( ) 40.Why do English people like DIY?
A. Many stores sell DIY.
B. DIY can bring them fun.
C. TV programs teach them to do DIY.
D. All DIY projects are easy
( ) 41.In the passage “we bite off more than we can chew”probably mean?
A. We can eat everything we like
B. We should so something difficult.
C. We do something that is too difficult.
D. We eat too much food that is not safe. ( ) 42.From the passage, how many people were hurt in just one day while doing DIY?
A. More than 800.
B. Less than 600
C. More than 700
D. Over 600
( ) 43. What can we learn from the passage?
A. DIY is a waste(浪费) of money.
B. It is always difficult to do DIY.
C. We should be careful while doing DIY
D. It’s very safe for us to do DIY.
四、阅读表达
Let’s go hiking.
Most people enjoy hiking. Hiking is not only a healthy but also a relaxing activity. The reason why people go hiking is different from person to person. Here are some of the most popular reasons for people to hike.
First of all, hiking is very good exercise which will improve people’s bodies. It is good exercise that does not hurt your body.
Secondly, hiking is very simple and cheap. All you need to do is to wear a pair of hiking boots and your smile to start.
Finally, hiking is the best way to get away from your everyday life. You could hike alone or go with your friends. After hiking, you will have a clear mind and return to work with confidence. So why not plan your hiking route right away.
The reason why hiking is (44) __________
General reason It’s healthy and (45) __________.
Reason 1 It can (46) ______ people’s bodies without hurting.
Reason 2 It is simple and cheap because buying a pair of hiking boots and (47) _______ your smiling are enough.
Reason 3 It is the best way to get away from everyday life and return with a clear mind and (48) _________.
44. _______; 45. ________; 46. ________; 47. _________; 48. _________
五、词汇
A）根据句子意思，用括号中所给词的正确形式填空，每空填一词。
49. You’re welcome. Make ________ (you) at home, children!
50. My teacher told me that the _____ (weigh) of the Eiffel Tower is over 10000 tons.
51. _______ (luck), I was in another city when the earthquake happened that year.
52. I think you don’t need to spend too much time revising(复习) this part. It’s ___________ (important) in this unit.
53. I think _______ (add) some tomato sauce to it will make the sandwich taste very nice.
B）根据句意及汉语提示，写出各单词的正确形式，每空填一词。
54. You should not be _____ (active) like that. You’d better take more exercise join in more activities.
55. It’s a little cold at night. You’d better sleep with the windows ________ (关闭).
56. Think hard, and try to _______ (说出) what is on the other side.
57. I hope our school team will be ____ (参加) the final of the writing competition this time.
58. Last week, I ________ (参加) three evening courses in DIY.
六、用括号内所给动词的正确形式填空（共5分，每小题1分）。
59. —Do you still remember ______ (meet) Jack, an exchange teacher from the UK?
—Yes, I miss him very much.
60. You’d better do more reading. You should not wait _______ (write) such compositions.
61. ______ this medicine and you will be better.
62. Our teacher agreed ________(go) hiking with us. I’m sure it’ll have great fun.
63. I hope you _______ (come) to our party on time tomorrow.
七、根据所给中文完成句子
64. 李先生邀请我参加他们学校去长城的旅游。
Mr. Li _____________________________ the Great Wall.
65. 我认为我的自行车没有她的好看。
I _______________________________________.
66. 有了你们的支持，我们赢得这次决赛。
____________________________ this final.
67. 他曾经试图在他的卧室里安装一盏更亮的灯，但是他没有成功。
I once _____________ a brighter light in his bedroom, but he __________ it.
68. 我爸爸常常自己制作、修补或安装物品，而不是付钱雇人做这些事。
My father often ______________________________________ someone to do it.
69. 使用不同颜色的水果，并尽量使你的水果沙拉看上去和它的味道一样地好。
Use fruit of different colors and ____________________________________.
【参考答案】
1—6：BCDBCB 7—12：BABADC 13—18：BCBBAB
19—24：CDABAA 25—30：CBCDBB
31—33：AAB 34—38：CADDB 39—43：ABCCC
44—48：popular; relaxing; improve; wearing; confidence
49—53：yourselves; weight; Luckily; unimportant; adding;
54—58：inactive; closed; say; in; attended
59—63：meeting; to write; Take; to go; will come
64. Mr. Li invited me to join their school trip to the Great Wall.
65. I don’t think my bicycle is as beautiful as hers.
66. With your support, we won this final.
67. I once tried to put in a brighter light in his bedroom, but he failed to do it.
68. My father often makes, repairs and decorates things instead of paying someone to do it.
69. Use fruit of different colors and try to make your fruit salad look as good as it tastes.
阶段评估检测(一)必修1详解
阶段评估检测（一） 必修1 （90分钟 100分） 一、选择题(共25小题，每小题2分，共50分) 1.关于病毒的叙述，正确的是( ) A.病毒是一种生物，在分类上属于原核生物 B.病毒的遗传物质是DNA或RNA，细菌的遗传物质只有DNA C.由于病毒体内只有一种细胞器核糖体，所以病毒需要营寄生生活 D.获取大量病毒的方法是将其接种在营养齐全的培养基上培养 2.(2012·盐城模拟)下列根据各概念图作出的判断，正确的是( ) A.甲图可以表示植物细胞内淀粉b和糖原a的关系 B.若乙图中a和b分别代表DNA和RNA，则乙图可以代表原核细胞内的核酸 C.丙图可体现出细胞生物膜系统c、核糖体a和线粒体b的关系 D.丁图能体现酶c、蛋白质a和核糖核酸b的关系 3.将发芽的小麦种子研磨后装入一半透膜袋内，扎紧袋口后将此袋放入装有蒸馏水的大烧杯中。一段时间后，从烧杯的液体中取样并等量分装于几支试管中，各滴入不同的试剂进行相应的检测，最可能观察到 ( ) A.滴入碘液→摇匀→溶液变成蓝色
B.滴入斐林试剂→隔水加热→有砖红色沉淀 C.滴入苏丹Ⅲ染液→隔水加热→溶液变成橘黄色 D.滴入双缩脲试剂→摇匀→溶液变成紫色 4.(2012?亳州模拟)人乳头状瘤病毒(HPV)和甲型H1N1流感病毒的遗传物质分别是DNA和RNA。下列有关DNA和RNA的比较正确的是( ) A.分布上，真核细胞中的DNA全部存在于细胞核中，RNA全部存在于细胞质中 B.化学组成上，DNA与RNA的碱基完全不同 C.结构上，DNA多为双链结构，RNA通常为单链结构 D.鉴定DNA用吡罗红染色剂，鉴定RNA用甲基绿染色剂 5.某科学工作者研究某细胞的组成成分时，提取到两种大分子物质T和D，其基本组成单位分别是t和d。已知t是葡萄糖，且T遇碘不变蓝，D可以被胃液中的某种酶消化。下列有关说法正确的是( ) A.该细胞肯定为植物细胞，T物质是纤维素 B.物质d中肯定含有元素氮，不含元素硫 C.物质D一定是在附着于内质网上的核糖体上合成的，其合成受核DNA控制 D.T和D的合成过程中都能产生水 6.秋天，在温室内，一种仙人掌的茎和“叶”长刺的基部常常会渗出一种白色的晶体状颗粒，尝一尝有较甜的味道。与上述现象有关的细胞器是( ) ①核糖体②线粒体③叶绿体④高尔基体 ⑤内质网⑥中心体 A.①②③④ B.②③④⑤ C.③④⑤⑥ D.①②③④⑤⑥
阶段质量检测(四)
一、选择题(每小题2.5分，共50分) 1.右图表示细胞周期(图中的M表示分裂期，G1、G2表示RNA及蛋白质 合成期，S表示DNA合成期)，某人为确定DNA合成期的长度，在处于连续 分裂的细胞的分裂期加入以3H标记的某化合物，下列化合物中最适合的是 () A．腺嘌呤B．胞嘧啶 C．鸟嘌呤D．胸腺嘧啶 解析：由题干信息可知，分裂间期的G1，G2期有RNA的合成，S期有DNA的合成。DNA的基本单位是脱氧核苷酸，含A、T、C、G四种碱基；RNA的基本单位是核糖核苷酸，含A、U、C、G四种碱基。要确定DNA合成期的长度，若标记的是A(腺嘌呤)或C(胞嘧啶)或G(鸟嘌呤)，由于它们在RNA和DNA中都含有，故不能确定DNA合成期的长度。而T(胸腺嘧啶)只存在于DNA中，故用3H标记T能确定DNA合成期的长度。 答案：D 2．①～⑤表示一个细胞有丝分裂过程中染色体变化的不同情况。在整个细胞周期中，染色体变化的顺序应该是() A．①④⑤③②B．①⑤④③② C．②③①④⑤D．⑤④③②① 解析：图中按①⑤④③②顺序所示的染色体依次处于分裂的间期、前期、中期、后期和末期。 答案：B 3．下图是某学生绘出的某高等植物的细胞分裂图像。其中错误的是() A．a和b B．c和d
C．b和d D．e和f 解析：b、e图都表示有丝分裂末期，植物细胞有丝分裂末期出现细胞板，细胞膜不向内凹陷，b图错；高等植物没有中心体，d错误。 答案：C 4.处于有丝分裂过程中的动物细胞，细胞内染色体数(a)、染色单体数(b)、 DNA分子数(c)可表示为右图所示的关系，此时细胞内发生着() A．中心粒移向两极B．着丝粒分裂 C．细胞膜向内凹陷D．DNA分子进行复制 解析：题图中所示的染色单体数和DNA分子数相同，都是染色体数的两倍。在细胞分裂过程中，只有前期和中期它们之间才具有这样的关系。而中心粒移向两极发生在前期；着丝粒分裂发生在后期；细胞膜向内凹陷发生在末期；DNA分子复制发生在间期。 答案：A 5．菠菜根的分生区细胞不断分裂使根向远处生长，在分裂过程中不会出现的是() A．细胞分裂间期，中心体的两个中心粒各自产生一个新的中心粒 B．细胞分裂中期，染色体形态较固定、数目较清晰 C．细胞分裂前期，核膜和核仁逐渐消失 D．细胞分裂末期，高尔基体参与细胞壁的形成 解析：菠菜是高等植物，细胞内没有中心体，纺锤体的形成是植物细胞两极发出纺锤丝所形成的。 答案：A 6.右图是某动物细胞分裂过程中细胞核内DNA含量变化，下列对 该图解的叙述正确的是() A．在ab段发生DNA复制，并出现染色单体 B．cd段始终观察不到核膜和核仁 C．cd段该细胞中含有两组中心粒 D．de段细胞中染色体∶DNA∶染色单体＝1∶1∶1 解析：首先根据DNA含量变化，辨析出各时期所在的区段，bc段进行DNA复制，所以ac段为间期；d处细胞核内DNA减半，所以de段为末期，则cd段为前、中、后期。有丝分裂前期核膜、核仁逐渐消失，所以在前期的初期还能清晰见到核膜和核仁。动物细胞间期中心体复制形成两组中心粒，分别移向细胞两极。de段已不存在染色单体。
高中生物 阶段性综合检测(三) 苏教版必修3
阶段性综合检测(三) (时间：90分钟，满分：100分) 一、选择题(本题共20小题，每小题2.5分，满分50分) 1．按一对夫妇生两个孩子计，人口学家统计和预测，墨西哥等发展中国家的人口翻一番大约需20～40年，美国需40～80年，瑞典人口将会相对稳定，德国人口将减少，预测人口的这种增减动态主要取决于( ) A．种群数量和密度B．种群年龄结构 C．种群性别比例D．出生率和死亡率 解析：选B。种群的年龄结构、种群密度、性别比例、出生率和死亡率等都可以影响人口增减动态。人口的出生率和死亡率是影响人口动态的直接因素。另外人群中男女性别比例大体相当，因此对题中所述，预测人口增减的动态，显然取决于种群的年龄结构。种群中年轻的个体占优势，预示种群的大小和密度将有很大的发展，因为进入生殖年龄的个体越来越多。 2．下列关于物种“丰富度”的说法，正确的是 ( ) A．一个池塘中鲫鱼的种群密度大于鲤鱼的种群密度，则此池塘中鲫鱼的物种丰富度高于鲤鱼 B．甲池塘中鲫鱼的种群数目多于乙池塘，则甲池塘中鲫鱼的物种丰富度高于乙池塘C．一片森林中的物种数目多于一片草原，则该森林的物种丰富度高于该草原 D．不同的群落，物种丰富度是定值 解析：选C。不同的群落，物种丰富度不同。一般说来，环境条件越优越，群落发育的时间越长，物种越多，群落结构也越复杂。 3．某种群死亡率如右图中曲线Ⅱ，出生率如右图中曲线I，则在哪一时期此种群的个体总数达到其最大值( ) A．a B．b C．c D．d 解析：选C。主要考查学生的理解和推理能力。开始时出生率大于死亡率，所以个体数量增加，当出生率降到等于死亡率时，个体数量最多，当死亡率大于出生率时，个体数量就会减少。 4．生活在一个生物群落中的两个种群(a，b)的数量变化如右图所示，下列判断正确的是( ) A．a种群与b种群为捕食关系，a种群依赖于b种群
2020年高考生物一轮复习阶段评估检测(八)含解析
阶段评估检测(八) (选修3) (30分钟100分) 1.(14分)(2016·全国卷Ⅲ)图(a)中的三个DNA片段上依次表示出了EcoRⅠ、BamHⅠ和Sau3AⅠ三种限制性核酸内切酶的识别序列与切割位点，图(b)为某种表达载体的示意图(载体上的EcoRⅠ、Sau3AⅠ的切点是唯一的)。 根据基因工程的有关知识，回答下列问题： (1)经BamHⅠ酶切后得到的目的基因可以与上述表达载体被_________酶切后的产物连接，理由是__________________________________。 (2)若某人利用图(b)所示的表达载体获得了甲、乙、丙三种含有目的基因的重组子，如图(c)所示。这三种重组子中，不能在宿主细胞中表达目的基因产物的有_______________，不能表达的原因是____ ____。 (3)DNA连接酶是将两个DNA片段连接起来的酶，常见的有__________________和 _____________，其中既能连接黏性末端又能连接平末端的是_________________。 【解题指南】(1)图示信息：图(a)中三种酶的识别序列，图(b)中终止子、启动子、图(c)中目的基因的插入位置。
(2)关键知识：只有两种限制性核酸内切酶剪切时识别的序列相同时，才能被DNA连接酶连接；启动子是启动目的基因转录的，终止子终止转录过程，插入二者之间的目的基因才能正常表达。 【解析】本题主要考查限制性核酸内切酶和DNA连接酶的作用及基因表达载体的构建。(1)BamHⅠ和Sau3AⅠ的共同识别序列是—GATC—，二者切割形成的黏性末端相同，可以被DNA连接酶连接。 (2)在基因表达载体中，启动子应位于目的基因的前端，终止子应位于目的基因的后端，这样目的基因才能顺利地转录并完成翻译过程，即顺利表达，图中所示甲、丙均不符。(3)常见的DNA连接酶有T4 DNA连接酶和E·coli DNA连接酶，T4 DNA连接酶既能连接黏性末端，又能连接平末端。 答案：(1)Sau3AⅠ两种酶切割后产生的片段具有相同的黏性末端 (2)甲和丙甲中目的基因插入在启动子的上游，丙中目的基因插入在终止子的下游，二者的目的基因均不能被转录(其他合理答案亦可) (3)E·coli DNA连接酶T4 DNA连接酶 T4 DNA连接酶 【加固训练】 (2016·海南高考)基因工程又称为DNA重组技术，回答相关问题： (1)在基因工程中，获取目的基因主要有两大途径，即_______和从_______中分离。 (2)利用某植物的成熟叶片为材料，同时构建cDNA文库和基因组文库，两个文库相比，cDNA 文库中含有的基因数目比基因组文库中的少，其原因是 __________________________________。 (3)在基因表达载体中，启动子是___________聚合酶识别并结合的部位。若采用原核生物作为基因表达载体的受体细胞，最常用的原核生物是_________。 (4)将目的基因通过基因枪法导入植物细胞时，常用的携带目的基因的金属颗粒有________和_______颗粒。 【解析】本题主要考查目的基因的获取方法、基因表达载体的构建方法、目的基因导入植物细胞的方法。 (1)在基因工程中，获取目的基因主要有两大途径，既可在核苷酸序列已知的情况下人工合成，也可用限制酶对生物材料的DNA切割，再选取。
2013年苏教生物必修3：阶段性综合检测(二)
(时间：90分钟，满分：100分) 一、单项选择题(本题共16小题，每小题2分，满分32分) 1．一个人的手掌触到裸露电线(110V)会立即反射性地握紧电线，被解救后他再次看到裸露的电线，会立即反射性地把手缩回，这两种反射的正确叙述是() A．两种反射中枢都在脊髓 B．两种反射中枢都在大脑 C．前一种反射中枢在脊髓，后一种反射中枢在大脑 D．前一种反射中枢在大脑，后一种反射中枢在脊髓 解析：选C。生来就有、不学就会的反射叫非条件反射，其中枢在大脑皮层以下；经学习形成的反射叫条件反射，其中枢必须有大脑皮层参与。一个人的手触到裸露的电线，而反射性地紧握电线，是非条件反射，其中枢在脊髓；以后再看见电线把手缩回则是条件反射，其中枢在大脑皮层。 2．下图表示神经元联系的一种形式，与此相关的表述正确的是() A．刺激a处，b处要比c处先产生电位变化 B．刺激b处，不会引起a和c处发生电位变化 C．刺激c处，a和b处都会产生兴奋 D．刺激a处，b、c同时产生兴奋或抑制 解析：选A。兴奋在神经元之间的传递是单向的，只能由一个神经元的轴突末端传递到下一个神经元的细胞体或树突。兴奋通过突触时有一个时间延搁，当刺激a处时，b处要比c处先产生电位变化，因为兴奋传递至c处时，还要经过一个突触。由此可见，刺激a处，b、c处会相继发生兴奋或抑制(b处比c处先产生电位变化)；刺激b处，c处会发生兴奋或抑制，而a处无反应；刺激c处，a处没有反应，b处有反应。 3．某同学正在跑步，参与调节这一过程的神经结构有() ①大脑皮层②小脑③下丘脑④脑干⑤脊髓 A．①②③④B．①③④⑤ C．①②④⑤D．①②③④⑤ 解析：选D。某同学正在跑步，参与调节这一过程的神经结构有：①大脑皮层，②小脑，③下丘脑，④脑干，⑤脊髓。例如①判断方向；②运动协调；③渗透压或体温调节；④参与呼吸调节；⑤交感神经和部分副交感神经发源于脊髓灰质的中间外侧柱及相当于中间外侧柱的部位，因此脊髓可以成为内脏反射活动的初级中枢。脊髓中枢可以完成基本的血管张力反射、发汗反射、排尿反射、排便反射等。 4．如图表示人体和人体细胞内某些信息传递机制的模式图，图示中箭头表示信息传递的方向。下列有关叙述中，正确的是() A．如果该图表示反射弧，则其中的信息是以局部电流的形式传导的 B．如果该图中的a为下丘脑、b为垂体、c为甲状腺，则c分泌的甲状腺激素增加到一定程度后，对a分泌d，b分泌e具有抑制作用 C．如果该图表示细胞中遗传信息传递过程，则d过程只发生于细胞核中 D．如果该图表示细胞免疫过程，a为效应T细胞，b为靶细胞，c代表抗体 解析：选B。血液中甲状腺激素的含量增加可以抑制下丘脑(a)和垂体(b)的分泌活动；兴奋在神经元之间以化学信号形式传递；线粒体或叶绿体中也有DNA，也可以发生转录、翻译过程；效应T细胞不能产生抗体，浆细胞可以产生抗体。 5．神经电位的测量装置如下图左图所示，其中箭头表示施加适宜刺激，阴影表示兴奋
世纪金榜阶段评估检测(一)
温馨提示： 此套题为Word版，请按住Ctrl,滑动鼠标滚轴，调节合适的观看比例，答案解析附后。 阶段评估检测（一） （必修1 第１～４章） （90分钟 100分） 一、选择题（共25小题，每小题2分，共50分） 1.关于病毒的叙述，正确的是( ) A.病毒是一种生物，在分类上属于原核生物 B.病毒的遗传物质是DNA或RNA，细菌的遗传物质只有DNA C.由于病毒体内只有一种细胞器核糖体，所以病毒需要营寄生生活 D.获取大量病毒的方法是将其接种在营养齐全的培养基上培养 2.（2012·盐城模拟）下列根据各概念图作出的判断，正确的是( ) A.甲图可以表示植物细胞内淀粉b和糖原a的关系 B.若乙图中a和b分别代表DNA和RNA，则乙图可以代表原核细胞内的核酸 C.丙图可体现出细胞生物膜系统c、核糖体a和线粒体b的关系 D.丁图能体现酶c、蛋白质a和核糖核酸b的关系
3.（易错题）用显微镜镜检人血涂片时，发现视野内有一清晰的淋巴细胞如图所示。为进一步放大该细胞，首先应将其移至视野正中央，则装片的移动方向应是( ) A.向右上方 B.向左上方 C.向右下方 D.向左下方 4.（2012·福州模拟）将发芽的小麦种子研磨后装入一半透膜袋内，扎紧袋口后将此袋放入装有蒸馏水的大烧杯中。一段时间后，从烧杯的液体中取样并等量分装于几支试管中，各滴入不同的试剂进行相应的检测，最可能观察到 ( ) A.滴入碘液→摇匀→溶液变成蓝色 B.滴入斐林试剂→隔水加热→有砖红色沉淀 C.滴入苏丹Ⅲ染液→隔水加热→溶液变成橘黄色 D.滴入双缩脲试剂→摇匀→溶液变成紫色 5.20种氨基酸平均相对分子质量为128，某蛋白质相对分子质量为10 228，在形成该蛋白质分子时脱去水的总量为1 548。那么组成该蛋白质的肽链数是 ( ) A.4条 B.6条 C.8条 D.16条 6.下表是两种生物干重中有关元素的质量分数（%）：
高考英语一轮复习方案 阶段评估检测 (8)(含解析)1
阶段评估检测(八) 第Ⅰ卷 第一部分英语知识运用(共两节，满分45分) 第一节单项填空(共15小题；每小题1分，满分15分) 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 1．Lots of supplies were offered to the flood-stricken area; ________， people from all walks of life volunteered to go there and help rebuild homes. A．on the contrary B．by all means C．above anything else D．what's more 2．The movie originally ________ for children under 12 is now being used to educate adults. A．intended B．being intended C．to be intended D．having been intended 3．—Mary broke up with me! —You ________ have forgotten about the Valentine's Day. A．needn't B．couldn't C．shouldn't D．mustn't 4．Our government ________ much importance to education now, which enables so many people to be well educated. A．attaches B．pays C．links D．applies 5．Is this the very material that scientists ________ the 2012 London Olympic Games torch? A．used to light B．are used to lighting C．use to light D．are used to light 6．He came here in the hope ________ he could learn about the cause of the accident. A．which B．how C．that D．what 7．I ride a bicycle to go to work every day and have a deep impression that the bicycle is very ________ in our daily life. A．convenient B．available C．possible D．personal 8．As is reported, it will be more than 20 years ________ humans are able to walk on Mars. A．before B．when C．since D．after 9．The coal boss took the risk of making money ________ the safety of his workers. A．in need of B．instead of C．in case of D．regardless of 10．—I have to go and get the clothes from the laundry. —________？ I can pick them up on my way home this afternoon. A．So what B．How come C．Why bother D．Why not 11．I admire my English teacher. I can remember very few occasions ________ she stopped working because of ill health. A．that B．when C．where D．which 12．It was ________of them to have sent the old people and children to safety in case the flood destroyed their village.
阶段质量检测(一) 导数及其应用
阶段质量检测（一） 导数及其应用 (时间： 120分钟 满分：150分) 一、选择题(本大题共12小题，每小题5分，共60分．在每小题给出的四个选项中，只有一项是符合题目要求的) 1．若f (x )＝sin α－cos x ，则f ′(x )等于( ) A ．sin x B ．cos x C ．cos α＋sin x D ．2sin α＋cos x 解析：选A 函数是关于x 的函数，因此sin α是一个常数． 2．以正弦曲线y ＝sin x 上一点P 为切点的切线为直线l ，则直线l 的倾斜角的范围是( ) A.????0，π4∪????3π 4，π B ．[0，π) C.????π4，3π4 D.????0，π4∪??? ?π2，3π 4 解析：选A y ′＝cos x ，∵cos x ∈[－1,1]，∴切线的斜率范围是[－1,1]，∴倾斜角的范围是????0，π4∪??? ?3π 4，π. 3．函数f (x )的定义域为开区间(a ，b )，导函数f ′(x )在(a ，b )内的图象如图所示，则函数f (x )在开区间(a ，b )内有极小值点( ) A ．1个 B ．2个 C ．3个 D ．4个 解析：选A 设极值点依次为x 1，x 2，x 3且a ＜x 1＜x 2＜x 3＜b ，则f (x )在(a ，x 1)，(x 2，x 3)上递增，在(x 1，x 2)，(x 3，b )上递减，因此，x 1，x 3是极大值点，只有x 2是极小值点． 4．函数f (x )＝x 2－ln x 的单调递减区间是( ) A. ??? ?0， 22 B. ????22，＋∞ C. ? ???－∞，－22，??? ?0， 22 D.?? ??－ 22， 0，? ???0， 22
第4章阶段性综合检测
(时间：60分钟，满分100分) 一、选择题(本题共20小题，每小题2.5分，满分50分) 1．肺炎双球菌转化实验和噬菌体侵染细菌实验都是证明DNA是遗传物质的经典实验，在这些实验的设计思路中最关键的是() A．要想办法分离DNA和蛋白质，并单独地观察它们各自的作用 B．要用同位素对DNA和蛋白质分别进行标记 C．要分离提纯DNA、蛋白质和多糖等物质 D．要得到噬菌体或肺炎双球菌 解析：选A。教材中的两个经典实验的方法虽然不同，但是设计思路是相同的：将DNA 和蛋白质分开，单独地观察它们各自的作用，以判断哪种物质在遗传中起作用。 2．在肺炎双球菌的转化实验中，将加热杀死的S型细菌与R型细菌相混合后，注射到小鼠体内，小鼠死亡，则小鼠体内S型、R型细菌含量变化情况最可能是() 答案：B 3．如果用3H、15N、32P、35S标记噬菌体后，让其侵染细菌，在产生的子代噬菌体的组成结构中，能够找到的放射性元素为() A．可在外壳中找到3H、15N、35S B．可在DNA中找到3H、15N、32P C．可在外壳中找到15N、35S D．可在DNA中找到15N、32P、35S 解析：选B。3H、15N既可标记在噬菌体的DNA分子上，又可标记在噬菌体的蛋白质外壳上，而32P只能标记在噬菌体的DNA分子上，35S只能标记在噬菌体的蛋白质外壳上。因为噬菌体侵染细菌的过程中，只有其DNA进入了细菌细胞，蛋白质外壳没有进入，子代噬菌体的DNA和蛋白质外壳大都以细胞的成分为原料合成，所以在产生的子代噬菌体结构成分中只能发现噬菌体的DNA分子上带有的3H、15N、32P，完全没有35S。故正确答案为B。 4．各种生物的遗传物质都是核酸。下列说法错误的是() A．微生物的遗传物质都是RNA B．真核生物的遗传物质都是DNA C．原核生物的遗传物质都是DNA D．病毒的遗传物质是DNA或RNA 解析：选A。病毒属于微生物。大多数微生物的遗传物质是DNA，部分病毒的遗传物质是RNA。所以A错误。 5．有一对氢键连接的脱氧核苷酸，已查明它的结构中有一个腺嘌呤，则它的其他组成是() A．三个磷酸，三个脱氧核酸和一个胸腺嘧啶 B．两个磷酸，两个脱氧核糖和一个胞嘧啶
高三数学二轮复习阶段性综合检测(三)
阶段性综合检测(三) (必做题部分：时间120分钟，满分160分) 一、填空题(本题包括14小题，每小题5分，共70分，把答案填在题中横线上) 1．下列问题的算法适宜用条件结构表示的是________ ①求点P (－1,3)到直线l ：3x －2y ＋1＝0的距离 ②由直角三角形的两条直角边求斜边 ③解不等式ax ＋b >0(a ≠0) ④计算100个数的平均数 解析：条件结构是处理逻辑判断并根据判断进行不同处理的结构．只有③中含有判断a 的符号．其余选项中都不含逻辑判断． 答案：③ 2．某雷达测速区规定：凡车速大于或等于70 km/h 的汽车视为“超速”，并将受到处罚，如图是某路段的一个检测点对200辆汽车的车速进行检测所得结果的频率分布直方图，则从图中可以看得出将被处罚的汽车大约有________辆． 解析：由图可知，车速大于或等于70 km/h 的汽车的频率为 0.02×10＝0.2，则将被处罚的汽车大约有200×0.2＝40(辆)． 答案：40 3．(2010年福建质检)如图，正方形ABCD 的 边长为2，△EBC 为正三角形．若向正方形ABCD 内随机投掷一个质点，则它落在△EBC 内的概率 为________． 解析：正方形的面积为4，S △EBC ＝12 ×2×2×sin60°＝3，所以质点落在△EBC 内的概率为34.
答案：34 4．给出如图所示的程序框图，那么输出的数是________． 解析：由题知，s ＝3×1＋3×3＋3×5＋…＋3×99＝7500. 答案：7500 5．学校为了调查学生在课外读物方面的支出情况，抽出了一个容量为n 的样本，其频率分布直方图如图所示，其中支出在[50,60)元的同学有30人，则n 的值为________． 解析：支出在[50,60)元的同学所占频率为1－10×(0.01＋0.024 ＋0.036)＝0.3，故样本容量为300.3＝100(人)． 答案：100 6．甲、乙两人随意入住两间空房，则甲、乙两人同住一间房的
2020年人教版英语八年级上册 阶段评估检测试卷检测五( Units 9~10)
2020年人教版英语八年级上册阶段评估检测试卷检测五( Units 9~10) 一、单项选择题。 1. -Can she _________ to the movies with us? -Yes, she can. A. goes B. go C. going D. to go 2. -Can you go hiking with us this weekend? -_____, but I have to help Mum with the housework. A. I'd love to B. Sorry, I can't C. I'm afraid not D. I'm not sure 3. - _____you tum off your radio? -Yes, I can. A. May B. Need C. Must D. Can 4. -Can you go to the park with us? -Sorry, I ______. I have to babysit my sister at home. A. mustn't B. needn't C. can't D. don't 5. -Cathy, can you come to our art club tomorrow? -_____ A. I'm sorry to hear that B. Never mind C. Sure, I'd love to D. You're welcome 6. The children will go to the park if the weather _____fine tomorrow. A. will be B. be C. was D. is 7. My mother will be unhappy if I ______ TV too much. A. will watch B. watch C. is watching D. was watching 8. If she there this week, I ______ you up. A. will go; will call B. goes; call C. will go; call D. goes; will call 9. You'll learn a lot ______ you travel around the world. A. so B. that C. if D. because 10.-Shall we go for a picnic this weekend? -That sounds a great idea, if it ______. A. rains B. doesn't rain C. will rain D. won't rain 二、用所给词的适当形式填空。 1. I have to______( help) my mother sweep the floor. 2. We would love____(come) to your birthday party. 3. Thank you for____(tell) me the news about ShenzhouX. 4. Thank you for your ______(invite) to visit your school next week. 5. He didn't do enough__________(prepare) for his exam, and failed it at last. 6. We are____(surprise) to hear the news about the earthquake in Ya'an. 7. Be ______(care) when you go across the busy street. 8. He is really____(worry) about the result of the final exams. 9. Miss Green is____(understand) and her friends all like her. 10. -Who helped Li Lei with his English? -Nobody. He learnt it by____(he).
2020年人教版数学九年级上册阶段评估检测试卷第二十五章(含答案)
阶段评估检测试卷 (第二十五章) 一、选择题 1．下列事件中，必然发生的是 （ ） A ．抛两枚均匀的硬币，硬币落地后，都是正面朝上 B ．掷一枚质地均匀的骰子，朝上一面的点数是3 C ．通常情况下，抛出的篮球会下落 D ．阴天就一定会下雨 2．某商场举办有奖销售活动，购物满100元者发兑奖券一张，在10000张兑奖券中，设特等奖1个、一等奖10个、二等奖100个．若某人购物满100元，那么他中一等奖的概率是 （ ） A ． 1001 B ．10001 C ．100001 D ．100000 111 3．小强向一个不透明的袋中装进a 个红球、b 个白球，它们除颜色不同外，没有其他差别，他让小明从袋中任意摸出一球，则摸出的球是红球的概率是 （ ） A ． b a B ．a b C ．b a a + D ．b a b + 4．新年联欢会上，班长准备了一些纸条，上面有游戏活动共6项，文艺表演共4项，采取抽签的方法进行表演，王楠和李丁两人依次各抽一题，则王楠抽到游戏活动的概率及李丁抽到文艺表演的概率分别是 （ ） A ．5253， B ．9453， C ．5353， D ．5 394， 5．一个密闭不透明的盒子里有若干个白球，在不允许将球倒出来数的情况下，为估计白球的个数，小刚向其中放入8个黑球，摇匀后从中随机摸出一球记下颜色，再把它放回盒中，不断重复，共摸球400次，其中88次摸到黑球，估计盒中大约有白球 （ ） A ．28个
B ．30个 C ．36个 D ．42个 6．某班共有学生36人，其中男生20人，女生16人，今从中选一名班长，任何人都有同样的当选机会，下列叙述正确的是 （ ） A ．男生当选与女生当选的可能性相等 B ．男生当选的可能性较大 C ．女生当选的可能性较大 D ．无法确定 7．小明随机在如图所示的正三角形及其内部区域投针，则针投到其内切圆(阴影)区域的概率为（ ） A ． 2 1 B ． π63 C ． π93 D ． π 3 3 8．某校决定从三名男生和四名女生中选出两名同学担任校艺术节文艺演出专场的主持人，则选出的恰为一男一女的概率是 （ ） A ． 74 B ．73 C ．72 D ．7 1 二、填空题(每小题4分，共32分) 1.袋子里装有红、黄、蓝三种小球，除颜色不同外，其他都相同，每种颜色的小球各5个，且分别标有数字1，2，3，4，5，现从中摸出一球． (1)摸出的球是蓝色球的概率为_________； (2)摸出的球是红色1号球的概率为_________； (3)摸出的球是5号球的概率为_________； 2．现有3个口袋，里面放着一些已经搅匀了的小球，具体数目如下表：
阶段质量检测
(时间90分钟，满分120分) 一、选择题(本大题共10小题，每小题5分，共50分．在每小题给出的四个选项中，只有一项是符合题目要求的)[来源:https://www.wendangku.net/doc/3e11121844.html, https://www.wendangku.net/doc/3e11121844.html, ] 1．数列3,5,9,17,33，…的通项a n＝() A．2n B．2n＋1 C．2n－1 D．2n＋1 答案：B 2．在△ABC中，sin A sin C
2013年浙科生物选修3：阶段性综合检测(一)
一、选择题(本题共20小题，每题2.5分，满分50分) 1．(2011年高考四川卷)北极比目鱼中有抗冻基因，其编码的抗冻蛋白具有11个氨基酸的重复序列，该序列重复次数越多，抗冻能力越强。下图是获取转基因抗冻番茄植株的过程示意图，有关叙述正确的是() A．过程①获取的目的基因，可用于基因工程和比目鱼基因组测序 B．将多个抗冻基因编码区依次相连成能表达的新基因，不能得到抗冻性增强的抗冻蛋白 C．过程②构成的重组质粒缺乏标记基因，需要转入农杆菌才能进行筛选 D．应用DNA探针技术，可以检测转基因抗冻番茄植株中目的基因的存在及其完全表达 解析：选B。因为一种氨基酸可能对应多种密码子、真核生物体内的基因含有内含子等因素，导致逆转录合成的目的基因与原基因有较大的差异，所以人工合成的目的基因不能用于比目鱼基因组测序，A选项错误；抗冻蛋白的11个氨基酸的重复序列重复次数越多，抗冻能力越强，并不是抗冻基因的编码区重复次数越多抗冻能力越强，抗冻基因编码区依次相连形成的新基因已不是原来的抗冻基因，因此不能得到抗冻性增强的抗冻蛋白，B选项正确；农杆菌转化法是将目的基因导入植物细胞的最常用方法，不是为了筛选含有标记基因的质粒，C选项错误；应用DNA探针技术，可以检测转基因植物中目的基因的存在，但不能完成对目的基因表达的检测，D选项错误。 2．基因工程的设计施工是在什么水平上进行的() A．细胞B．细胞器 C．分子D．原子 解析：选C。基因工程又称DNA重组技术。在生物体外，将DNA分子经“剪切”和“拼接”重组后，导入受体细胞内进行大量繁殖，使目的基因在受体细胞内表达，产生出人类所需要的基因产物，所以是在分子水平上定向改造生物的性状的。 3．下列关于DNA连接酶的叙述正确的是() ①催化相同粘性末端的DNA片段之间的连接②催化不同粘性末端的DNA片段之间的连接③催化两个粘性末端互补碱基间氢键的形成④催化DNA分子两条链的脱氧核糖与磷酸间磷酸二酯键的形成 A．①③B．②④ C．②③D．①④ 解析：选D。在DNA重组技术中，两个DNA片段必须有相同的粘性末端才能互补配对进行结合，具有相同粘性末端的DNA分子连接时，DNA连接酶的作用是催化脱氧核苷酸链上的脱氧核糖与磷酸间磷酸二酯键的形成。 4．基因工程中要把所需目的基因从供体细胞中分离出来，这要利用限制性核酸内切酶，有一种限制性核酸内切酶只能识别DNA分子中的GAA TTC序列，并在G和A之间进行切割，这是利用了酶的() A．高效性B．专一性 C．多样性D．催化活性受温度影响 解析：选B。本题综合考查了酶的功能特性，即专一性，高效性，多样性的特点。另外酶的活性受温度、pH的影响，一种限制性核酸内切酶只能识别一种特定的核苷酸序列，并在特定的位点切割是酶专一性的体现。 5．基因工程的操作过程中需要的工具酶有() A．限制性核酸内切酶DNA聚合酶
高考英语一轮复习方案 阶段评估检测(5)(含解析)1
阶段评估检测(五) Ⅰ.语言知识应用(共两节；满分45分) 第一节完形填空(共15小题；每小题2分，满分30分) 阅读下面短文，掌握其大意，然后从1～15各题所给的A、B、C、D四个选项中，选出最佳选项。 An old man lay in a hospital bed, heavily sedated (给……服镇静剂) to ease the pain from his heart attack. The nurse arrived and said, “Your son is here，” reporting the words several times before the __1__ conscious man opened his eyes. His son was a __2__ who had come back from service to __3__ to his beloved father. The elderly man __4__ out to touch his son's hand and squeezed it gently. All through the night, the young soldier sat in the dimly lit ward offering words of __5__ to his dying dad, who said nothing, but kept a feeble grip of his child. __6__ of the noise of the oxygen tank and the moans of the other patients, the marine remained __7__ by the old man's side. Several times in the course of that long night, the nurse returned and __8__ that the marine leave to rest for a while. But each time he would refuse. As dawn approached the elderly man __9__. His loving son rested the old man's __10__ hand on the bed and left to find the nurse. The young man waited while the nurse carried his father's body away and when she returned, offering words of __11__，the Marine interrupted her. “Who was that man？” he asked. __12__， the nur se replied, “He was your father.” “No, he wasn't，” the young man said, “I've never seen him before in my life.” “Then why didn't you say something？” “When I arrived the __13__， I knew right away there had been a mistake，” the young man explained. “But I al so knew that man needed his son, and he wasn't here. I could tell he was too __14__ to know who sat beside him but he needed someone there, so I just decided to __15__．” 1．A.simply B．actually C．barely D．totally 2．A.director B．marine C．policeman D．businessman 3．A.talk B．stick C．tend D．adjust 4．A.reached B．moved C．helped D．picked 5．A.respect B．encouragement C．truth D．wisdom 6．A.Unaware B．Afraid C．Free D．Sick 7．A.calm B．still C．seriously D．loyally 8．A.explained B．suggested C．ordered D．stopped 9．A.awoke B．screamed C．died D．fainted 10．A.active B．lifeless C．alive D．useful 11．A.inspiration B．love C．admiration D．sympathy 12．A.Surprised B．Curious C．Upset D．Annoyed
- 2017_2018学年高中数学阶段质量检测二新人教A版选修1_2
- 三年级下册语文阶段质量检测
- 阶段质量检测(一)空间几何体
- 【高中数学】2018-2019学年度最新北师大版必修2阶段质量检测(一)Word版含解析
- 阶段质量检测三
- 小学四年级语文阶段质量检测试题答案
- 阶段质量检测(三) A卷
- 阶段质量检测(三)
- 阶段质量检测
- 阶段质量检测(四)
- 高中数学 阶段质量检测(一)新人教A版选修1-1.
- 第1、2章 阶段质量检测(一)
- 阶段质量检测(四)
- 阶段质量检测一
- 小学语文四年级下册阶段质量检测参考答案及评分标准
- 阶段质量检测(一) 解三角形
- 阶段质量检测(二)
- 阶段质量检测(一) 导数及其应用
- 阶段质量检测(十二)生物技术实践
- 阶段质量检测