第二周训练题答案

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六年级上册数学第二单元训练题

六年级上册数学第二单元训练题

第二单元圆(单元测试)-2024-2025学年六年级上册数学西师大版一、单选题1.我国魏晋时期数学家()创造了用“割圆术”求圆周率的方法。

A.刘徽B.阿基米德C.祖冲之D.华罗庚2.将圆形纸片在平直的桌面上滚动,圆心运行的痕迹是一条直线,原因是()。

A.同一个圆中,直径是半径的2倍B.圆没有角C.圆周率是一个固定数D.圆心到圆上各点的距离都相等。

3.如下图,从A到B沿大半圆走近,还是沿小半圆走近?正确答案是()。

A.沿大半圆走近B.沿小半圆走近C.一样近D.无法判断4.下列说法正确的有()句。

①方程一定是等式,等式不一定是方程。

②因为2.4×2=4.8,所以2.4和2是4.8的因数。

③两个质数相乘的积一定是合数。

④直径是半径的2倍。

⑤圆周率是3.14。

A.1B.2C.3D.45.圆的半径扩大到原来的2倍,周长扩大到原来的()倍。

A.2B.4C.16D.1二、判断题6.将一张圆形纸片对折两次后打开,得到两条折痕的交点是这个圆的圆心。

()7.任意一个圆都有无数条对称轴。

()8.把一个圆按1:2的比缩小,缩小后圆的面积是原来圆面积的12。

()9.半圆的半径用r表示,它的周长是πr。

()10.用四个圆心角都是90度的扇形,一定可以拼成一个圆。

()三、填空题11.把一个圆平均分成若干等份,拼成一个近似的长方形。

已知长方形的周长比圆的周长多10cm,这个圆的周长是cm,面积是cm2。

12.圆的半径是1.3厘米,则它的直径是厘米;圆的直径是20分米,则它的周长是分米。

13.为了测量1元硬币的直径,鹏鹏进行下图的操作。

这枚硬币的直径是毫米,周长是毫米。

14.在一个周长是32厘米的正方形铁板内,要割下一个最大的圆,这个圆的面积是平方厘米,剩下铁板的面积是平方厘米。

15.体育老师用一根绳在操场上画了一个半径为3米的圆,这个圆的周长是米,占地面积是平方米。

四、作图题16.如图,每个小正方形的边长都是1厘米。

2023版山东省建筑施工专职安全生产管理人员(C类)考核考试题库【3套练习题】模拟训练含答案(第2次

2023版山东省建筑施工专职安全生产管理人员(C类)考核考试题库【3套练习题】模拟训练含答案(第2次

2023版山东省建筑施工专职安全生产管理人员(C类)考核考试题库【3套练习题】模拟训练含答案答题时间:120分钟试卷总分:100分姓名:_______________ 成绩:______________第一套一.单选题(共20题)1.依据我国2014年修订后的《安全生产法》的规定,生产经营单位的()对本单位的安全生产工作全面负责。

A.法定代表人B.主要负责人C.工会负责人D.党委书记2.下列关于潜水泵的安全使用要求,错误的是()。

A.潜水泵提出水面时,可以带电操作,但严禁拉拽电缆B.潜水泵应装设保护接零和漏电保护装置C.工作时潜水泵周围30m以内水面,不得有人、畜进入D.潜水泵不用时,不得长期浸没于水中,应放置在干燥通风室内3.某项目设备安装合同造价为6000万,则承担该工程的总承包单位应至少配备()名专职安全生产管理人员。

A.1B.2C.3D.44.《建设工程安全生产管理条例》规定,建设单位未将保证安全施工的措施或者拆除工程的有关资料报送有关部门备案的,责令限期改正,并给予()。

A.罚款B.责令停业整顿C.责令限期整改D.警告5.2011年10月,大连某小区住宅楼工程在地下车库浇筑施工过程中,发生模板坍塌事故,造成13人死亡、4人重伤,1人轻伤,直接经济损失1237.72万元,则该事故属于()。

A.一般事故B.重大事故C.较大事故D.特别重大事故6.扣件式钢管模板支架的高度超过20m时,应在最顶()水平杆中间沿纵、横方向分别增加一道()。

A.两步距,水平杆B.一步距,水平杆C.两步距,斜撑D.一步距,斜撑7.《民法通则》规定,年满()周岁,能以自己的劳动收入为主要生活来源,视为完全行为能力人。

A.18周岁B.10周岁C.16周岁D.14周岁8.依据《安全生产法》的规定,生产经营单位的建设项目的安全设施必须做到"三同时",即生产经营单位新建、改建、扩建工程项目的安全设施,必须与主体工程()。

中考英语阅读周周练有答案Week2

中考英语阅读周周练有答案Week2

第一部分基础训练 - WEEK TWO一、阅读理解(共10小题;共20分)AThe longest railway line in the world opened on December 26th, 2012. The line joins China's capital Beijing with the southern Chinese city of Guangzhou. The line is 2,298 kilometers long and crosses half of China. The first train left Beijing station at 9 am and arrived in Guangzhou eight hours later. The super-fast train travels at an average speed of 300 kph and cuts the journey time from 20 hours to just eight. It stops at 35 different cities along its route. A total of 310 trains will run between the two cities each day. A one-way ticket for the journey costs $138. The Chinese government hopes the train will help the country's economy as business people can now travel across the country a lot quicker.Chinese media say the bullet train(动车) service started on 26 December to commemorate(纪念) the birth of former Chinese leader Mao Zedong. The train is also a sign of China's plan to become the world's leader in high-speed rail travel. It already has 8,600 km of high-speed railway track, which is more than any other country in the world. It plans to extend(扩展) this to 16,000 km by 2015 and 50,000 km by 2020. China Ministry of Railways spokesman Zhou Li told reporters, "The opening of the Beijing-Guangzhou high-speed line shows China's high-speed railway network has started to take shape." A passenger who traveled on the first train explained how proud she was of the train, saying, "It's amazing China has developed so quickly."1. What time did the train arrive in Guangzhou?A. At 9 a.m.B. At 10 a.m.C. At 5 p.m.D. At 6 p.m.2. How many different cities does the train stop at?A. 25.B. 30.C. 35.D. 40.3. Who is Zhou Li?A. A worker at China's Ministry of Railways.B. A journalist from CCTV.C. The first passenger on the train.D. A driver of the high-speed trains.4. China now has high-speed railway track.A. 16,800 kmB. 6,800 kmC. 16,000 kmD. 8,600 km5. What feeling did a passenger have?A. Disappointment.B. Pride.C. Boredom(厌烦).D. Sadness.BFor many people the subject of hiccups(打嗝) is a joke, but for Harry Mendes, a fifteen-year-old schoolboy from Birmingham, it was something quite different.His hiccups began on one Sunday lunch time and continued day and night for two weeks. After the first week, Harry's parents took him to hospital, but it took another week for the doctors to cure his attack(发作). Harry is now back at school, and he told us what happened to him."When I began to hiccup, I drank a glass of water, but that didn't do any good. That evening I had hiccups every four seconds. We tried everything to stop them. I held my breath and drink cold drinks. My father even tried to give me a shock but that didn't work either."After a week of sleepless nights, he went to hospital. The doctors took an X-ray of his chest but they couldn't find anything wrong."They gave me some medicine and my hiccups slowed down, but it was another week before the medicine worked completely and my hiccups stopped."Harry was very lucky. The world record holder is the American farmer-Charles Borne. He hiccupped for sixty-eight years. But nobody knows why.6. Harry's hiccup lasted .A. a weekB. fourteen daysC. twenty-eight daysD. one month7. Harry's hiccups started after he .A. drank a glass of waterB. went to hospitalC. ate a Sunday mealD. finished his homework8. Harry's parents decided to take him to hospital when he .A. hiccupped for four secondsB. held his breathC. hiccupped at nightD. couldn't stop hiccupping9. Harry's hiccups completely stopped one week after the doctor .A. gave him some medicineB. took an X-ray of his chestC. gave him a shockD. let him drink cold drinks10. The underlined word "shock" in the third paragraph means .A. 震惊B. 休克C. 喷嚏D. 哈欠二、完形填空(共10小题;共15分)There is an American story about three sisters. They loved each other very much. Each 11 could only be happy when she was with her sister.The oldest sister stood 12 . Her name was Corn. Corn was beautiful and strong.The middle sister liked to twine(缠绕) 13 her sister Corn. Her name was bean. As Bean grew taller, she could give Corn a 14 hug.The 15 sister was very brave. She stayed at the 16 of Corn and Bean to protect them from danger. Her name was Squash.When one of the sisters grew, 17 two wanted to grow. They 18 wanted to be alone. So they always 19 together in the same field.On summer nights, 20 stars shone in the sky, the three sisters changed into young and beautiful girls. They were in green clothes, danced happily, and sang to their mother earth and their father sun.11. A. sisters B. family C. sister D. brother12. A. small B. short C. fat D. tall13. A. in B. around C. at D. from14. A. big B. bigger C. small D. smaller15. A. oldest B. middle C. strongest D. youngest16. A. back B. top C. middle D. feet17. A. other B. the others C. the other D. others18. A. never B. always C. often D. sometimes19. A. looked B. found C. lived D. sat20. A. what B. when C. if D. until三、阅读理解(共9小题;共18分)AThe tradition of birthday parties started a long time ago. There are some traditions that you can find almost anywhere, anytime, such as sending birthday cards, blowing out the candles on a birthday cake and singing the Happy Birthday song. Others are only found for certain ages and in certain countries.In China, on a child's first birthday, family members put many things on the floor around the child. According to Chinese tradition, the first thing that the child picks up tells what profession the child will choose later in life.For Japanese children, the third, fifth and seventh birthdays are especially important. At this age, there is a special celebration Shichi-Go-San (seven, five, three in Japanese) when children go to the temple wearing a new kimono(和服). The priest(僧侣) gives them special sweets, and the parents usually organize a party for their friends in their home.In Argentina, Mexico and several other Latin American countries, girls have a special birthday celebration when they reach the age of fifteen. After a special ceremony, the girls dance a waltz with their father and other boys.Eighteen is the traditional "coming of age", the age when (in many countries) you have the right to vote(选举), join the army and (in Britain) drink alcohol or buy a house.In many English-speaking countries, a twenty-first birthday cake often has a key on top, or the cake itself is sometimes in the shape of a key. The key means that the young person is now old enough to leave and enter the family home at any time they want to!21. Which of the following birthday traditions can be found almost anywhere, anytime?A. Putting many things on the floor.B. Wearing a new kimono.C. Dancing a waltz.D. Sending birthday cards.22. The usually organize a party at children's special birthday celebration in Japan.A. priestsB. parentsC. friendsD. relatives23. Mexican girls have a special birthday celebration at the age of .A. fiveB. sevenC. fifteenD. twenty-one24. In many countries you can when you reach the age of eighteen.A. join the armyB. have a carC. have a special ceremonyD. have special sweets25. Which is the best title of this passage?A. Birthday Traditions Around the WorldB. Chinese Birthday CelebrationsC. Japanese Special CelebrationD. The Drinking Age in Many CountriesB"Who needs a shopping mall if you have Taobao?"says Wang Lin, 28, a writer in Beijing. Taobao, China's largest online shopping site, has become an important part of Wang Lin's life. She spends lots of money on Taobao.A growing number of Chinese Internet users like Wang Lin have found the joys of online shopping. Most online shoppers are students or young workers. More women shop online than men. Clothing and home-use products are the most popular on line.It was reported that more than 250 billion yuan was spent on online shopping last year, 80% through Taobao.Taobao means "looking for treasure" in Chinese. People can find almost everything they need on Taobao, from clothes to books, from candies to DVD players.You may question the security of online shopping. Wang Lin said, "It's safe and convenient. Unless you receive the products from the sellers and like them, the shop owner will not get the money. You can also get your money back if you want to return the products."26. According to the text, are the most popular on line.A. candies and DVD playersB. clothes and foodC. home-use products and booksD. clothing and home-use products27. Most online shoppers are .A. smartB. youngC. businessmenD. housewives28. The underlined word "security" in the last paragraph probably means " ".A. 质量B. 安全C. 信誉D. 利润29. What can be the best title for the text?A. Wang Lin's New LifeB. Online Shopping in ChinaC. Online Shopping Is Not SafeD. The Online Shopping四、完形填空(共10小题;共15分)It's said that many years ago people used animal skins to make clothes. People started to wear clothes 30 they could keep themselves safe from the sun, wind, rain and cold.Today, we can use 31 materials to make different kinds of clothes. But clothes do 32 than keep us warm in modern society, and they can also 33 about our culture, our life, our jobs, our hobbies and even our mood. 34 , when we see a man in a uniform, we know his 35 from the uniform. When we see a woman in a kimono, we may think that she is 36 . If a man always wears sportswear, we may think he is 37 and likes doing exercise. If a person 38 wears yellow or red clothes, maybe he or she is lively and easy-going. As the saying goes, "You are what you 39 ."30. A. as if B. so that C. even if D. although31. A. different B. expensive C. strange D. perfect32. A. better B. worse C. farther D. more33. A. tell B. ask C. bring D. find34. A. What's more B. For example C. However D. In a word35. A. hobby B. idea C. wish D. job36. A. Japanese B. Chinese C. English D. American37. A. nervous B. happy C. silent D. active38. A. sometimes B. seldom C. never D. always39. A. do B. say C. wear D. like五、阅读与表达(填空式)(共5小题;共10分)Do you feel a little sleepy after lunch? Well, that's normal. Your body naturally slows down then. What should you do about it? Don't reach for a coffee! Instead, take a nap.It's good to have a daily nap. First of all, you are more efficient(有效的) after napping. You remember things better and make fewer mistakes. Also, you can learn things more easily after taking a nap. A nap may increase your self-confidence and make you more active. It may even cheer you up. But, there are some simple rules you should follow about taking a nap. First, take a nap in the middle of day, about eight hours after you wake up. Next, a 20-minute nap is best. If you sleep longer, you may fall into a deep sleep. After waking from a deep sleep, you will feel worse. Also, you should set an alarm clock. That way, you can fully relax during your nap. You won't have to keep looking at the clock, so you don't oversleep.Next time you feel sleepy after lunch, don't get stressed. Put your head down, close your eyes, and catch forty winks(打盹).40. If you feel a little sleepy after lunch, you'd better .41. A nap may increase your self-confidence and make you more .42. You'd better take a nap in the middle of day, about after you wake up.43. The proper period of time for taking a nap is about .44. If you don't want to oversleep, you should when you take a nap.六、阅读与表达(判断式)(共5小题;共10分)An old man built a model of the Taj Mahal (泰姬陵) with thousands of matches for his wife. It took him about eight months to build it. Everybody knows about the Taj Mahal in India. It is one of the most beautiful buildings in the world. Over three hundred years ago, Shah Jehan built the Taj Mahal as a tomb for his wife.Shah Jehan wanted his wife's tomb to be wonderful. He did not care about time or money. He brought together workmen from all Asia. Altogether, over 20,000 men worked on the building and it took them over seventeen years to finish it.The building stands on a platform(平台) of red sandstone. Four thin white towers rise from the corners of the platform. A large dome(圆顶) rests at the center of the building. Around this large dome there are four smaller ones. It has eight sides and many arches(拱门). So people can enter the great building easily.There is a beautiful garden around the Taj Mahal. The green trees make the marble(大理石) look even whiter. In front of the building there is a long, narrow pool. Look into this pool, and you can see all the beauty of the Taj Mahal from the water.The Taj Mahal is the most beautiful at sunset. The marble picks up the color of the sunset, and the white building turns into a great red one. In 2007, the Taj Mahal became one of the New Seven Wonders in the world.根据短文内容,判断正误,正确的为T,错误的为F。

第二周周测成绩分析

第二周周测成绩分析

8班:常天玺、尚文琪 王妍、刘力铭、程志昊、张嘉宸 孙嘉祺、高沄汐、李方宝
当堂训练:
完成训练题组——限时10分钟
达标检测:
完成检测题组——限时10分钟
溶液、溶解度复习学案
习题更பைடு நூலகம்:
13题的溶解度曲线图改为(如下图)
(3)小题改为:
N点为A的 溶液
S/g
A
S
. N .
P
B C
0
t1
t2 t3
t
溶液、溶解度复习学案答案 知识点1:
反馈方法:
学科小老师具体负责,解答组员的疑难问题; 限时10分钟。
第一批小老师:
5班:李瑜琛、钟涵玉、高冰洁、 岳蕙昕、张天翔、赵戌、杜昕怡、 潘玺月、孙兆禾、石中钰、彭泊词 6班:侯宗岳、管文灿、马艺楠 鹿腾然、刘镜宇、朱文清、时义睿 肖秋宁、崔雁舒、黄笑菡
第一批小老师:
7班:孙晓菡、李建林、杨程然、魏诚甫 邢定一、任炳旭、孙涵宇、张瑞昕、吴川龙
周测成绩分析
班级 5 6 7 50(满分) >48 3 3 0 8 6 4 >45 17 17 17 40—45 8 12 11 <30 7 7 5
8
2
8
25
10
2
反馈目标:
1.溶液的概念、组成、特征、状态、命名;
2.固体物质的溶解性——溶解度及其曲线应用; 3、溶液组成的定量表示——溶质质量分数。
1 、 B 2 、 B 3、 C 4 、 B
知识点2:
5、(1)碘、酒精 (2)硝酸钾、水
(3)硫酸、水 6、D 7、C 8、D 9、C 10、C 12、A
13、(1)Sg
(2)A、C在该温度下的溶解度相等

【分层训练】五年级上册英语课时练习-Unit 2 My week 第五课时人教PEP(含答案)

【分层训练】五年级上册英语课时练习-Unit 2 My week 第五课时人教PEP(含答案)

Unit 2 My weekLet’s learn and Group work(第五课时)基础巩固一、根据图片写词组。

1. 2. 3.4. 5.二、用单词的适当形式填空。

1. I often read ____(book) on the weekend.2. Do you often wash____(I) clothes?3. I like this park. ____(I) too.4. It___(be) a storybok.5.Wu Yifan often____(watch)TV in the evening.三、情景交际。

( )1. 你想知道Mike在周末是否是经常读书,你应问:A. Do you often read books?B. Do you ofte n watch TV?( )2.当朋友问你,你在周末经常洗衣服时,你肯定回答:A. No, I don’t.B.Yes, I do.( )3. 你想知道Amy周末做什么,你应问:A. What do you have on the weekend?B. What do you do on the weekend?四、按要求完成下列各题。

1. I of ten watch TV in the evening. (变成一般疑问句)____ you often ____ ____in the evening?2. He often play football. (改错)3. on, I, my, weekend, often, clothes, the ( .)(连词成句)4. Do you do your homework? (肯定回答)5. It’s a storybook.(对划线部分提问)is it?五、阅读理解完成下列各题。

A: Hi, Mike. 1. ________B: No, it’s Frid ay.A: 2. ________B: We have English, computer class, art and PE.A: Tomorrow(明天) is Saturday. We don’t go to sc hool. 3. _____ B: I often read books on Saturdays. 4. ________A: I often play basketball with my father.B: Great! 5. ________A: Yes, he’s t all and strong.A. What do you do on Saturdays?B. Is it Thursday today?C. What do we have on Fridays?D. Is your father strong?E. What about you?(一)选择合适的句子补全对话。

2023年3月份第2周 语文好题推荐(含答案)

2023年3月份第2周 语文好题推荐(含答案)

2023年3月份第2周语文好题推荐学校:___________姓名:___________班级:___________考号:___________一、基础知识1、下列选项中对于修辞手法的解释不正确的一项是( )A.我听这个名字差不多,像日本女孩子的名字,日本的女子很多都叫什么子什么子的。

(比喻)B.我问他,你不回去,想做些什么呢?他说,随便分配我做点什么工作都行。

(设问)C.我回答说,让我们化干戈为玉帛吧,日本民族是勤劳智慧的民族,愿中日两国人民世世代代友好下去。

(借代)D.致使日本人民起居不安,生活困难,背井离乡,触冒烽火,寡人之妻,孤人之子,独人父母。

(排比)2、下列对相关文学常识的解说,不正确的一项是( )A.“表”即“奏表”,是古代臣子呈给帝王的一种文书,常含表志陈情、诉说心曲之意,如《出师表》《陈情表》。

B.“授”“迁”“补”“擢”是古代官职任免升降的术语,常见的还有“拜”“转”“徙”“升”等。

“授”“拜”“补”是关于任职授官的,“擢”“升”“致仕”是关于提升职务的,“转”“徙”“迁”是关于调动职务的。

C.象笏是用象牙做的笏板。

笏是古代大臣上朝时用的手板,有事可以记在上面备忘。

D.仲秋,指秋季的第二个月,即农历八月。

采用的是序数纪月法,一年分四季,一季为三个月,分别称孟、仲、季。

3、下列句子中,加粗词语的含义与现代汉语相同的一项是()①人习于苟且非一日。

②可怜焦土。

③瓦缝参差,多于周身之帛缕。

④役聪明之耳目。

⑤老吾老,以及人之老。

⑥加之以师旅。

⑦可谓智力孤危,战败而亡。

⑧常愿天下有情人都成眷属。

A.①③⑧B.②③④C.①⑤⑧D.③⑥⑦4、下列句中加粗词的活用现象,不同于其他三项的一项是( )A.辞楼下殿,辇来于秦B.朝歌夜弦,为秦宫人C.后人哀之而不鉴之D.日削月割,以趋于亡二、默写题补写出下列句子中的空缺部分。

5、《阿房宫赋》中将反问与对比融为一体,批判秦人竭力搜刮财物却又不珍惜的句子是“__________,__________”。

二年级数学思维拓展训练及答案

二年级数学思维拓展训练及答案
第三周:
1、O +0 +08, O+\ +△ =24,求△—0=()
2、一座6层高的塔,最上边一层装了2只灯,往下每低一层多装4只灯,最下面一层要装多 少只灯?
3、两个书架上共40本书,从第一个书架拿6本书放入第二个书架,两个书架的本数相等, 原来第一个书架有()本书。
4、厶+△+△=15,A +O=£,△= () , 0=()
4、将25、35、45、55、65、75分别填入括号里,使等式成立,每个数只用一次。 ()+()=()+()=()+()
5、把4、6、8、10、12、14、16、18这8个数分别填入下面的()里,使等式成立,每个数 只用一次。()+()-()=() ,()+()-()=()
第二周:
1、有13个小朋友一起玩 “猫捉老鼠 ”的游戏,已经捉住了8人,还要捉()人。
3、同学们排成方队做操,从前后左右数,小红都是第4个,做操的同学一共有多少人
4、小明班上做操的队伍有4行,每行人数相等,小明左边有5人,右边有2人, (1)小明这一行一共有多少人?(2)小明的班上一共有多少人?
5、8位同学排成一列纵队做操,若队伍全长14米,则前后两人之间的距离是多少米?
第十一周:
1、一桶油连油带桶重16千克,把油倒出一半后,连油带桶重9千克,请问原来油重多少千 克?
第七周:
1、小朋友排成一列,从前往后数,小光站第3个,从后往前数,小光站第7个,问:这一列 一共有多少人?
2、一排小朋友一共14人,排在亮亮后面的有4人,排在亮亮前面的有多少人?
3、鸭妈妈带着一群小鸭去游泳。鸭妈妈左边有7只小鸭,右边也有7只小鸭,问:一共去了 多少只鸭?

每周思维拓展训练题(二年级)

每周思维拓展训练题(二年级)

每周思维拓展训练题(每周一、三、五完成)第2周月日1.摆一摆,从第二行拿几个△放在第一行,两行△的个数同样多?△△△△△△△△△△△△△△△△△△【试一试】小红有6个皮球,小明拿2个球给小红后,两人皮球的个数同样多,小明原来有几个皮球?第2周月日小丽有6本课外书,如果她送1本书给小君,两个人的课外书就同样多。

小君原来有多少本书?【试一试】第一盒有8颗巧克力,从第一盒中拿出2颗放入第二盒,这时两盒巧 克力的颗数同样多,原来第二盒有几颗巧克力?第二周月日填空。

0+0+亠7 0+0+△+^=10【试一试】填空。

1.•+★+^=12 •+•+•+★+★=162.△+□+□=& △+△+□+□+□=130=( △=( ★=(•=(△=(□=( ) ) ))第3周月日请你猜一猜,每个算式中的图形各表示几?30【试一试】猜一猜,竖式中的图形各代表的数字是几?4250它们各代表几?(1十赤电)+亦⑰十杏乞)+<^)=30⑵000+00=(>第3周月日把一根木头锯成3段,要锯几次?如果每锯一次要3分钟,一共要锯多少分钟? 【试一试】把一根钢管截成4段,每截一次要2分钟,一共要几分钟?第3周月日时钟2点钟敲2下,2秒敲完;4点钟敲4下,()秒敲完。

【试一试】时钟敲3下,2秒敲完;时钟敲5下,()秒敲完。

第3周月日小明家住三楼,他每上一层楼要走14级台阶。

小明从一楼走到三楼要走多少级台阶?三楼14级台阶"二14级台阶_楼【试一试】小林家住在四楼,他从一楼走到二楼要走15级楼梯,那么他从一楼到四楼一共要走多少级楼梯?第3周月日有10个小朋友在玩“猫捉老鼠”的游戏,现在已经捉到了5人。

还有几个人没有被捉到?【试一试】有12个小朋友在一起玩捉迷藏的游戏,现在已经捉到了7人。

还有几个人没有被捉到?第3周月日一只船上坐着一家人。

数一数,有两个爸爸,两个儿子。

船上一共有几个人?【试一试】一只船上坐着一家人。

名校周考阶梯训练答案物理必修二

名校周考阶梯训练答案物理必修二

名校周考阶梯训练答案物理必修二从上一节的学习中,我们知道了很多做题的技巧,在此基础上,我们要掌握物理概念和规律,并能灵活运用。

接下来,我们要学习的是对物理概念理解的方法。

我们知道,物理的概念和规律并不是一个固定不变的。

比如质量定律就有许多种不同的理解方式:质量是个变量,密度是变量,频率是变量等。

这一节我们就要理解质量定律与密度规律,可以简单地说两个力的作用是合力,在外力作用下对物体没有影响。

物体所受的外力大小决定了物体所施加力的大小,物体的加速度越大外力作用于物体越大,物体受到的向心力也就越大;而加速度越小外力作用于物体越小,物体受到的向心力也就越小。

还有从惯性来看,物体受力改变方向会使惯性量改变或者由力决定它的位置。

这样我们就可以通过一些小实验来验证一下物体所受向心力对其位置变化的影响。

比如说我们可以将实验引入到重力加速度中进行实验来验证这个实验的效果到底有多大。

1.从质量定律看,两个力的作用是合力,没有合力对照表。

如果两个物体受一个重力,两个加速度,这两个力之间的关系如图1所示。

对于两面方向相同,而中心在空中的重力合力为 g的两个物体,则三点间的运动方向与三点相互垂直时所受到的力合力相同。

这两个力之间存在的力合力公式如下:这道题我们也知道是力之于物体,而不是力之于物体。

所以根据质量定律可以将两个力作用在物体上只受到两个方向上力的作用称为合力。

可以看出合力与向心力都是相同的。

也就说两个力共同作用于一个物体中所受到的向心力是相同的。

所以说合力=向心力-质量>加速度.由于我们要将两个物体看成是合力所产生的力,所以这个力就称为向心力。

我们还可以通过下面几个小实验来验证:把三个一组置于同一条直线上并让两块相同质量的物体同时承受住这三个力,结果会发现物体质量越大越难恢复到原来水平。

2.物体的重力加速度等于它所受向心力的平方,即是向心力/时间。

这个实验中,牛顿第一定律为假设,其结果是由两个向心力引起的,而时间是固定不变的。

第二周作业答案

第二周作业答案

第二周作业答案1-1 填空题(1)一质点,以 m s 1的匀速率作半径为5m的圆周运动,则该质点在 5s 内,位移的大小是;经过的路程是。

[答案:10m;5πm](2)一质点沿 x 方向运动,其加速度随时间的变化关系为 a=3+2t (SI),如果初始时刻质点的速度 v0为 5m·s-1,则当 t 为 3s 时,质点的速度 v= 。

[答案: 23m·s-1 ]323m / sv3 2t dt 51-2 选择题(1)一质点作直线运动,某时刻的瞬时速度 v 2m/ s ,瞬时加速度 a 2m / s2,则一秒钟后质点的速度(A)等于零(B)等于 -2m/s (C)等于 2m/s (D)不能确定。

[答案: D](2)一质点沿半径为 R 的圆周作匀速率运动,每 t 秒转一圈,在 2t 时间间隔中,其平均速度大小和平均速率大小分别为 (A) 2 t R , 2 t R(B) 0,2t R(C) 0,0(D) 2 R ,0t[答案: B](3)一运动质点在某瞬时位于矢径r ( x, y)的端点处,其速度大小为drdr (A) dt (B) dtd | r |( dx 2 dy )2 (C) dt (D) )(dtdt[答案: D]1-12 质点沿x 轴运动,已知加速度a 6t m/s2,t0时,03 m/s ,x 0质点的运动方程; ( 2)质点在前移和路程。

解:(1)质点的运动方程10m,求( 1)2秒内的位dv ∵a6tdt分离变量:dv 6tdt两边积分得v 3t2 c由题知, t 0 时,v03m / s ,∴c 3m / s ∴v 3t 2 3 m s 1dx∵vdt分离变量:dx vdt 3t 2 3 dt两边积分得x t3 3t c1由题知, t 0 时,x0 10m ,∴c1 10m∴质点的运动方程x t3 3t 10 m (2)质点在前 2秒内的位移和路程质点在前 2秒内的位移x x x 23 3 2 10 -10 m=2m2 0方向沿 x 轴正向质点在前 2秒内的路程∵x1 8m x2 12m∴路程s xx1 x2 x1 6m1-15 质点沿 x 轴运动,其加速度和位置的关系为 a = 2+6 x 2, a 的单位为 m s 2, x 的单位为m. 质点在 x = 0处,速度为 10 m s 1,试 求质点在任何坐标处的速度值.adv dv dx dv 解: ∵dt dx dt vdx分离变量: vdv adx(2 6x 2)dx两边积分得1v22x 2x3c2由题知, x 0时, v 0 10,∴ c 50∴ 2-1 填空题v 2 x 3 x 25 m s1(1) 某质点在力F (45x)i (SI )的作用下沿x 轴作直线运动。

高考英语一轮复习 精选提分专练 第二周 二 饮食类高三全册英语试题

高考英语一轮复习 精选提分专练 第二周 二 饮食类高三全册英语试题

入舵市安恙阳光实验学校饮食类Ⅰ.语境填词1.My friend was (饿的),so we drove to a shopping mall to get some food.2.They will complain (bitter) that this is protectionism,but so what?3.Eating too much (fry) food is bad for our health.4.Mary finally ordered (咖啡) for herself and Helen. 5.Meanwhile, (hot) the tomatoes and oil in a pan.Ⅱ.单项填空6.I’m really this weather—why can’t it be sunny for a change?A.fed up to B.fed onC.fed to D.fed up with7.People often mix him up his brother.A.with B.in C.to D.at8.—Would you like some more chicken?—No,thanks.I am a diet and I’m trying to weight. A.on;lose B.on;put onC.in;have D.in;lose9.—Why not go out to have a tea over the break?— .A.No.I haven’t got any changeB.No.I’m really not in the moodC.No.I’m not thirstyD.No.It’s my treat this time10.Harry is feeling uncomfortable.He too much at the party last night.A.could drink B.should drinkC.would have drunk D.must have drunk阅读理解AWe all know that eating junk food can make us fat.However,a new study suggests that it can do more than that—it can also make us lazy,reported CBS News.In the study,researchers at the University of California,Los Angeles,US divided 32 female rats into two groups.The first group was fed a diet of healthy food such as corn and fish,while the second was given a diet of highly processed (加工的) food rich in sugar,namely “junk food”.Within three months,the rats in the second group were already much fatter than those on the healthy diet.And when researchers trained the rats to do simple tasks,they found even more differences between the two groups rather than weight.During the task—pushing a lever (杠杆) to receive a reward of sugar water—the rats on the junk food diet were found to be less willing to move,and they took longer breaks between each push than the lean rats did.“It is as if the rat is thinking ‘This is too much work’,” Aaron Blaisdell,leader of the study,told the Los Angeles Times.But what about the possibility that the fat rats were less passionate about getting sugar water because they were already eating lots of sugar in their daily diet?That’s why researchers repeated the tests by rewarding fat rats with plain water when they were extremely thirsty.However,the results came out just the same.According to researchers,these differences suggest that junk food changed the chemistry in the rats’ brains.The experiment didn’t end there.After six months,the rats’ diets were switched,and the overweight rats were given a healthy diet for nine days.However,this change didn’t help reduce their weight or improve their ability to perform tasks,which means the effects of their junk food diet persisted (持续存在).“There’s no quick fix,” said Blaisdell.For a long time,we’ve believed that people become fat because theyare lazy.But this study has proven the opposite to be true as well,which indicates that laziness and obesity are a “vicious cycle (恶性循环)”.So,if you constantly feel tired,lacking any urge to get up from your chair,it could be that you’ve been studying too hard.But you should also pay attention to your diet.1.During the first three months of the experiment by researchers at the University of California, .A.rats from the healthy diet group ate nothing but corn and fish B.rats on the junk food diet ate more than those on healthy diet C.rats on the healthy food diet performed better at simple tasks than those on the junk food dietD.rats on the junk food diet seemed uninterested in sugary food 2.The researchers rewarded thirsty rats with plain water in the lever test to .A.help them control their weightB.test whether fat rats lost interest in the test because they had taken enough sugarC.change the diet habits of fat rats D.find out the influence of sugar on rats’ brains3.The underlined word “there” refers to “”.A.after the rats on the junk food diet had worked hard to get sugar waterB.after the type of food rats prefer had been identifiedC.after a quick cure for obesity had been foundD.after the fact that fatter rats are lazier than lean rats had been found4.We can conclude from the article that .A.fat people are usually lazier than lean peopleB.people should switch between different types of diets to keep healthy C.being overweight and being lazy can feed into each other D.laziness is the main cause of weight problems5.Which of the following is NOT right according to the passage? A.Eating junk food can make us fat.B.Researchers got different results after repeating the tests to fat rats.C.For a long time,we’ve believed that people become fat becau se they are lazy.D.If you constantly feel tired or study too hard,you need to pay attention to your diet.B(2017·二模)Blind imitation(模仿) is self­destruction.To those who do not recognize their unique worth,imitation appears attractive;to those who know their strength,imitation is unacceptable.In the early stages of skill or character development,imitation is helpful.When I first learned to cook,I used recipes(菜谱) and turned out some tasty dishes.But soon I grew bored.Why follow someone else’s way of cooking when I could create my own?Imitating role models is like using training wheels on a child’s bicycle;they help you get going,but once you find your own balance,you fly faster and farther without relying on them.In daily life,imitation can hurt us if we subconsciously(下意识地) hold poor role models.If,as a child,you observed people whose lives were bad,you may have accepted their fear and pain as normal and gone on to follow what they did.If you do not make strong choices for yourself,you will get the results of the weak choices of others.In the field of entertainment,our culture glorifies celebrities.Those stars look great on screen.But when they step off screen,their personal lives may be disastrous.If you are going to follow someone,focus on their talent,not their bad character or unacceptable behaviors.Blessed is the person willing to act on their sudden desire to create something unique.Think of the movies,books,teachers,and friends that have affected you most deeply.They touched you because their creations were motivated by inspiration,not desperation.The world is changed not by those who do what has been done before them,but by those who do what has been done inside them.Creative people have an endless resource of ideas.The problem a creator faces is not running out of material;it is what to do with all the material knocking at the door of imagination.Study your role models,accept the gifts they have given,and leave behind what does not serve you.Then you can say,“I stand on the shoulders of my ancestors’ tragedies and declare victory,and know that they are cheering me on.”6.Imitation proves useful when you .A.know you are uniqueB.lose the balance of lifeC.begin to learn something newD.get tired of routine practice7.To avoid the bad result of imitation,we should . A.forget daily fear and painB.choose the right exampleC.ask others for decisionsD.stay away from stars8.According to the author,the world moves on because of those who are .A.desperate to influence others with their knowledgeB.ready to turn their original ideas into realityC.eager to discover what their ancestors didD.willing to accept others’ ideas9.The trouble a creator faces is .A.the lack of strong motivationB.the absence of practical ideasC.how to search for more materialsD.how to use imagination creatively 10.What is the author’s purpose in writing this passage? A.To highlight the importance of creativity.B.To criticize the characters of role models.C.To compare imitation with creation.D.To explain the meaning of success.答案精析高考高频单词与短语识记排查跟踪训练Ⅰ.1.hungry 2.bitterly 3.fried 4.coffees 5.heatⅡ.6.D [考查固定短语。

山东省淄博市六中2022-2021学年高二上学期第二周自主训练英语试题 Word版含答案

山东省淄博市六中2022-2021学年高二上学期第二周自主训练英语试题 Word版含答案

2021级高二(上)英语自主学习材料第2周命题人:尹燕审核人:贾乐第I卷选择题部分(共100分)其次部分听力(共两节,满分30分)第一节(共 5 小题;每小题 1.5 分,满分7.5 分)1.What are the speakers talking about?A. Having a birthday party.B. Doing some exercise.C. Getting Lydia a gift.2.What is the woman going to do?A. Help the man.B. Take a bus.C. Get a camera.3.What does the woman suggest the man do?A. Tell Kate to stop.B. Call Kate’s friends.C. Stay away from Kate.4.Where does the conversation probably take place?A. In a wine shop.B. In a supermarket.C. In a restaurant.5.What does the woman mean?A. Keep the window closed.B. Go out for fresh air.C. Turn on the fan.其次节(共15小题;每小题1.5分,满分22.5分)听第6段材料,回答第6、7题。

6.What is the man going to do this summer?A. Teach a course.B. Repair his house.C. Work at a hotel.7.How will the man use the money?A. To hire a gardener.B. To buy books.C. To pay for a boat trip.听第7段材料,回答第8、9题。

2020年中国大学MOOC(慕课)心理学第二周测试题及答案

2020年中国大学MOOC(慕课)心理学第二周测试题及答案
第二周小测验
本次得分为:12.00/12.00, 本次测试的提交时间为:2020-03-16, 如果你认为本次测试 成绩不理想,你可以选择再做一次。
1 单选(2 分)
以下说法中错误的是

A.冯特、铁钦纳是结构主义的代表 B.弗洛伊德是精神分析学派的代表 C.华生是行为主义心理学派的代表 D.韦特海默是机能心理学派的代表
A.1878 B.1949 C.1977 D.1879
2 单选(2 分)
认为心理学的目的是研究有机体适应环境过程中心理的功能的心理学流派


A.精神分析 B.结构主义 C.功能主义 D.行为主义
3 单选(2 分)
被称作心理学的第三势力的是
D.认知心理学
4 单选(2 分)
认为心理学的目的是揭示刺激和反应之间的确立关系的派别是__________。
A.精神分析 B.功能主义 C.人本主义 D.行为主义
5 单选(2 分)
强调“整体不等于部分之和,而是大于部分之和”的心理学学派是:

A.结构主义
B.完形心理学 C.精神分析 D.行为主义
6 单选(2 分)
________年,德国心理学家冯特在莱比锡大学建立世界上第一个心理实验室,标志心理学成 为一门独立的科学。

四年级上册人教版语文第二周达标测试卷含答案

四年级上册人教版语文第二周达标测试卷含答案

四年级上册人教版语文第二周达标测试卷(现代诗二首* 繁星* 语文园地)一、基础训练。

(27分)1、给下列加点字选择正确的读音,在括号里打“√”。

(6分)鸟巢.(cháo cáo)睡眠(mán mián)罗列(luó nuó )冒昧(mèi wèi)坠落(zhuì zuì)怀抱(huái huán)2、同音字组词。

(8分)[Wěi] 芦()()大枯()()屈[zhàn] ()岗()斗客()霸()[mèi]) ()力妩()愚()姐()[cháo] ( )代( )穴()笑( )流3.把下面词语补充完整,并完成练习。

(7分)人声( )()锣鼓( )()( )耳( )聋响彻( )()()声()语( )()私语( )( )无声悄无( )()摇摇( )()(1)画横线的词语是一个AABC式词语,请再写出两个这样的词语:(2)画波浪线的词语中含有一对近义词,请再写出两个这样的词语:(3)形容响声直达高空的词语是4.按要求写词语。

(6分)(1)写出下列词语的反义词。

(3分)静寂——()微小——()光明——()仰望——()模糊——()忘记——()(2)用"ABB式”的词语填空,使句意完整。

(3分)①花牛在草地里走,小尾巴甩得①春天的雨水滋润着的麦苗。

①夕阳照得妹妹的脸的,真可爱啊!二、能力提升。

(22分)1.品读句子,完成练习。

(6分)(1)花牛在草地里做梦,太阳偷渡了西山的青峰。

这句话用了的修辞手法,从这些词语可以看出。

(2)海上的夜是.柔和的,是.静寂的,是.梦幻的。

这句话用了的修辞手法。

请你用加点的词语以“天上的星”开头再写一个句子。

天上的星是,是,是。

2.按要求写句子。

(8分)(1)天空悬着无数星。

(扩句)(2)星光在我们的肉眼里微小。

星光使我们觉得光明无处不在。

高考英语每周一卷第二周 万变不离其宗的5种基本句式+Word版含答案

高考英语每周一卷第二周 万变不离其宗的5种基本句式+Word版含答案

第二周万变不离其宗的5种基本句式句子成分构成了英语中各种各样的句子,其实英语中最基本的句式只有五种,其他各种句式都是由这五种基本句式演变而来。

五种基本句式如下:主语+谓语(不及物动词)主语+谓语(及物动词)+宾语主语+系动词+表语主语+谓语(及物动词)+间接宾语+直接宾语主语+谓语(及物动词)+宾语+宾语补足语一、主语+谓语(不及物动词)该句式常用来表示主语的动作或状态。

其特点为:句子的谓语动词都能表达完整的意思,这类动词叫作不及物动词,后面可以跟副词、介词短语、状语从句等。

①This_camp will open on July 20th. (2015·北京高考书面表达)训练营将于7月20号开始。

②Bathed in the sunshine, we jumped and cheered with joy.(2013·江西高考书面表达)沐浴在阳光中,我们高兴得欢呼雀跃。

[即时演练]补全句子1.为了保持健康,我们应该定期锻炼。

In order to keep fit, we_should_exercise_regularly.2.因此,这种新鞋最近才问世。

Therefore, this_new_kind_of_shoes_has_come_into_being recently.(2014·湖南高考书面表达)3.这里高楼林立、绿树成荫。

Here many_high_buildings_have_appeared with green trees growing quickly.二、主语+谓语(及物动词)+宾语该句式特点为:谓语动词均为实义动词,都是主语发出的动作,但不能表达完整的意思,必须跟一个宾语(宾语可以由名词、代词、动名词、不定式等来充当),即动作的承受者,才能表达完整的意思。

①I appreciated my maths teacher’s praise and encouragement verymuch.(2015·湖南高考书面表达)我非常感谢我的数学老师的称赞和鼓励。

(六年级)举一反三1-40讲附答案

(六年级)举一反三1-40讲附答案

第一周 定义新运算专题简析:定义新运算是指运用某种特殊符号来表示特定的意义,从而解答某些特殊算式的一种运算。

解答定义新运算,关键是要正确地理解新定义的算式含义,然后严格按照新定义的计算程序,将数值代入,转化为常规的四则运算算式进行计算。

定义新运算是一种人为的、临时性的运算形式,它使用的是一些特殊的运算符号,如:*、等,这是与四则运算中的“∆、#、*、·”不同的。

新定义的算式中有括号的,要先算括号里面的。

但它在没有转化前,是不适合于各种运算定律的。

例题1。

假设a*b=(a+b)+(a -b),求13*5和13*(5*4)。

13*5=(13+5)+(13-5)=18+8=26 5*4=(5+4)+(5-4)=1013*(5*4)=13*10=(13+10)+(13-10)=26练习11..将新运算“*”定义为:a*b=(a+b)×(a -b).求27*9。

2.设a*b=a 2+2b ,那么求10*6和5*(2*8)。

3.设a*b=3a -12×b ,求(25*12)*(10*5)。

例题2。

设p 、q 是两个数,规定:p △q=4×q -(p+q)÷2。

求3△(4△6). 3△(4△6).=3△【4×6-(4+6)÷2】 =3△19=4×19-(3+19)÷2 =76-11 =65 练习21. 设p 、q 是两个数,规定p △q =4×q -(p+q )÷2,求5△(6△4)。

2. 设p 、q 是两个数,规定p △q =p 2+(p -q )×2。

求30△(5△3)。

3. 设M 、N 是两个数,规定M*N =M N +N M ,求10*20-14。

例题3。

如果1*5=1+11+111+1111+11111,2*4=2+22+222+2222,3*3=3+33+333,4*2=4+44。

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成语1.下列句子中加点成语使用恰当的一项是A.“新疆大发展,我们怎么办?”“首府大跨越,我们怎么干?”乌鲁木齐人已把深入贯彻落实中央新疆工作座谈会精神,当做实现首府跨越式发展的不二法门。

B.6月11日世界杯足球赛在南非开赛以来,球迷们天天坐在电视机前观看,每场比赛结束后仍对球星的表现评头论足,强聒不舍,尽情享受着体坛的“豪门盛宴”。

C.今年年初以来,大蒜、绿豆等农产品大幅涨价,疯涨速度令人叹为观止,由此也催生出“蒜你狠”“豆你玩”“玉米疯”等一系列网络新词。

D.面对我市多年来冬季大气污染严重的状况,市政府下大力气整治,终于妙手回春。

据2015年环境监测显示:优级天数增加,重污染天数减少。

不二法门:原为佛家语,意为直接入道,不可言传的法门。

后比喻最好的或独一无二的方法。

强聒不舍:形容别人不愿意听,还絮絮叨叨说个不停。

叹为观止:指赞美所见到的事物好到了极点。

妙手回春:指医生医术高明。

答案:A解析:强聒不舍为贬义,享受比赛为褒义,矛盾;叹为观止为赞美,涨价为贬义,矛盾;妙手回春为医生专用。

2.下列各句中,加点的成语使用有错误的是A.2010年4月23日是第十五个世界读书日,社会各界都不约而同地发出了“读一本好书”的倡议。

B.在日常生活中,自觉选择低碳生活方式,是每一位中学生责无旁贷的责任。

C.楼房鳞次栉比,公路平坦通畅,河流重现清澈,这些是我市推进新农村建设以来呈现出的新景象。

D.春节期间,在泰州老街、桃园、望海楼等景区内,具有鲜明地方特色的民俗表演让人们流连忘返。

不约而同:事先没有约定而相互一致。

责无旁贷:自己应尽的责任,不能推卸给旁人。

鳞次栉比:象鱼鳞和梳子齿那样有次序地排列着。

多用来形容房屋或船只等排列得很密很整齐。

流连忘返:玩乐时留恋不愿离开。

留恋得忘记了回去。

答案:B解析:责无旁贷本身已经包含责任在里边,和后面的“责任”重复,构成语病。

南通2010年3.选出下列各句中加点的成语使用不恰当的一项(3分) ( )A.如今的滨江新城,交通四通八达,高楼鳞次栉比,人民安居乐业。

B.青年人要多读书,勤思考,并以积极的姿态投身沸沸扬扬的新生活。

C.季羡林先生学富五车,著作等身,是世人敬仰的“学界泰斗”。

D.南通拥有红木雕刻、板鹞风筝等一大批令人叹为观止的传统工艺品。

鳞次栉比:象鱼鳞和梳子齿那样有次序地排列着。

多用来形容房屋或船只等排列得很密很整齐。

沸沸扬扬:象沸腾的水一样喧闹。

形容人声喧闹。

著作等身:形容著述极多,迭起来能跟作者的身高相等。

叹为观止:指赞美所见到的事物好到了极点。

答案:B解析:此项中的“沸沸扬扬”是指像沸腾的水一样喧闹。

这里用来形容新生活,不合适。

4.下列句子中加点的成语使用不恰当的一项是A.“五·一”小长假期间,到小平故居参观的人络绎不绝。

B.篮球赛场上个别运动员的急躁情绪,往往会导致全队一泄千里,不可收拾。

C.从风格上看,李白的诗飘逸豪放,杜甫的诗沉郁顿挫,各有千秋。

D.做学问,是一项艰辛的劳动,应踏踏实实,一步一个脚印,来不得半点虚假,更不能好高骛远。

络绎不绝:来来往往,接连不断,前后相继。

形容或车马等前后相接,连续不断。

一泄千里:形容江河奔流直下,流得又快又远。

也比喻文笔或乐曲气势奔放。

也形容价格猛跌不止。

各有千秋:各有各的存在的价值。

比喻各人有各人的长处,各人有各人的特色。

好高骛远:比喻不切实际地追求过高过远的目标。

答案:B解析:一泄千里适用于文笔、乐曲好,为褒义,或者价格猛跌,不适用于球赛的溃败。

5.下列句子中加点的成语使用不当的一项是()A.百色以它得天独厚的旅游资源,吸引众多旅游者前来观光。

B.突如其来的强烈地震,摧毁了原本祥和安宁的玉树小城。

C.这部小说情节跌宕起伏,抑扬顿挫,具有很强的感染力。

D.看电视是游览观光最经济、最省事的途径,我们足不出户,便可大饱眼福。

得天独厚:具备的条件特别优越,所处环境特别好。

突如其来:出乎意料地突然发生。

抑扬顿挫:指声音的高低起伏和停顿转折。

足不出户:脚不跨出家门。

答案:C解析:抑扬顿挫适用于声音的高低,不适用于情节的起伏。

病句1.根据文段内容,对下面两个画线病句的修改都正确的一项是(A)在学校开展戏剧学习、戏剧实践的过程中,①很多家长努力为孩子争取上台演出。

他们希望孩子变得更加开朗、更加自信,②语言表达能力和表演水平得到改善。

看来,家长们都非常注重对孩子综合素质的培养。

A.①句应在“演出”之后加上“的机会”②句应将“改善”改为“提高”B.①句应在“家长”之前加上“学生”②句应将“改善”改为“改变”C.①句应在“演出”之后加上“的机会”②句应将“改善”改为“改变”D.①句应在“家长”之前加上“学生”②句应将“改善”改为“提高”2.下列句子中,没有语病的一项是BA.能否熟练规范地书写汉字,是《语文课程标准》对学生汉字书写的基本要求。

B. 5月21日清晨,福州市民如愿以偿地观赏到日环食奇观。

C.各地中小学完善和建立了校园安全工作机制。

D.由于张丽莉老师舍己救学生,被网友誉为“最美女教师”。

3.下列对病句的修改不正确的一项是( C )A.林书豪在NBA的职业生涯正在刚刚开始,就以神奇的表现征服了亿万观众。

修改:删除“正在”B.在上海家电博览会上,海尔推出了全球可去除PM2.5的首台空调。

修改:应把“首台”移到“可去除”之前C.春天的兰州各大公园绽露出自然的清新和灵秀,成为人们春游的好时机。

修改:把“成为”改为“是”D.通过持续摄入含有1073R-1乳酸苗的酸奶饮料,会使学生患流感的几率有效降低。

修改:删除“通过”4.下列句子没有语病的一项是( B )A.据初步分析,已造成254人遇难、35人受伤的山西襄汾尾矿库溃坝事故的直接原因是由于非法矿主违法生产、尾矿库超储引起的。

B.进一步强化政府对留守儿童的责任,建立关爱留守儿童的长效机制,是解决留守儿童问题的关键。

C.中国虽然已成为世界轮胎制造基地、全球第一耗胶大国,但天然胶的生产却不能自给。

D.通过“最美中学生”张文驰高考前捐肾救人的事迹,使我们看到丁“90后”中学生的人性之美。

5.下列句子中,没有语病的一项是( D )A.这座公园环境优美,空气清新,设施齐全,是群众休闲娱乐的宜居地。

B.在亿万注视下,刘翔第一个冲过终点线,成为首个获得百米跨栏比赛冠军的亚洲人。

C.父母外出打工后,姐姐挑起家庭重担,像母亲一样无时无刻呵护着弟弟妹妹。

D.-般而言,身体素质的好坏,很大程度上取决于我们平时是否注重锻炼。

阅读:这辈子做好您儿子①父亲不是个受人尊重的人,一直不是。

②这跟他的目不识丁无关,七十岁往上数的乡下老头,认得字的可以用罕见来形容。

父亲一辈子跟文化沾边的事只有两样。

一是大集体每年年底在超支单上签上自己名字,为这个不算长脸的事,父亲花了三天时间学会写自己的名字,一个字一天工夫。

把那些横撇竖捺绑架到一个方块里,对父亲来说,比耕田耙地不会轻松到哪儿,父亲弄出了一身冷汗,骨子里,他更倾向于出一身热汗,那样每个毛孔是透爽的。

打那天起,父亲对文化人的尊崇到了无以复加的地步。

二是,父亲的五个子女中,居然有一个靠文化吃饭了,成了作家。

这让他每次看我时,目光中总有藏不住的怀疑,这是那个曾经骑在他脖子上撒尿淘气的小儿子吗?呵呵,忘了告诉大家一声,父亲的那个作家儿子,是我。

③父亲不受人尊重的理由很多。

固执是首当其冲的一个,暴躁是当仁不让屈居第二,忝陪第三的,应该是没尽到父亲责任。

不能再往下排了,再排下去,父亲就一无是处了,做儿女的,得学会给父亲留点脸面,书上都说了,天下无不是的爹娘。

④但我还是想违背一下做儿女的原则,说说父亲的不是。

⑤就从父亲的固执说起吧。

父亲的固执,使我们一家生活,一再跌入生活的底谷。

从我记事起,我们一家就生活在贫困交加中,好在那时大家都穷得一个模式,你家一年到头看不见四两猪油,他家同样从春到秋望不见一块新布,我家呢,连猪油新布这种词都避之唯恐不及,不敢想,一想那日子就被抽去了精气神。

⑥父亲当过不到一年的生产队长,不是他多有能力,而是他除了勤扒苦做,还会憨吃苕干,干活不惜死力的那种。

队员们本以为,找了一个不偷懒的人当队长,干活时可以少背上一个人的活路,孰不料,父亲以自己的苦做苕干要求所有的队员向自己看齐。

五个指头伸出来是有长短的,乡下有句老话,吃不过人是各人的饭碗,做不赢人是各人的手段。

吃不过父亲也做不赢父亲的队员们就使出手段,把父亲的队长拿了下来。

⑦人生的辉煌至此结束,父亲是不甘的,好在生产队很快解体,包产到户,父亲对家里生产安排独行专断。

结果是,高产杂交稻进入农村五年后,父亲才接受这个新生事物,他是以家庭经济五年入不敷出为代价换来的这个认识。

一步落后步步落后的父亲被两个哥哥冲天的怨气拉下马来,大权旁落。

那时他才五十岁,古人说的知天命的日子到了。

父亲没有知天命,也没有顺应天命,他的脾气无端暴躁起来,沾不得酒,酒似乎成了他杀世的仇人。

一沾酒就吼叫咆哮,为此吓哭了几次刚出生的侄儿,哥嫂口中就有了微词,分了家过也就罢了,还不让他带孙子。

没见识过父亲暴躁脾气的村里人很意外,在他们眼里,父亲是个和善的人,树叶掉下来都怕砸了头的那种。

对父亲这种反常,冯小刚电影《非诚勿扰二》里一句经典台词可以诠释,说什么是穷人,恨自己穷过的人,翻身了最想干的,就是变本加厉使唤人。

换而言之,父亲是个懦弱的人,他在家里的暴躁,是要掩饰自己在外面的懦弱。

明白了这点,我深为父亲悲哀。

可惜,这种悲哀的日子老天爷都吝啬着,不愿意多给我几年。

一向以勤扒苦做憨吃苕干的父亲过了六十以后,做不赢一个人,也吃不过一个人了。

先是心脏有了问题,再就是腿脚,肿得像牛膝。

请医生看了,说是年轻时做得狠了,静脉曲张导致,用了药,腿不肿了,那血管却吓人地暴起,我臆想,是不是父亲的暴戾之气都钻进血管里潜伏着了。

这个时候的父亲,脾气已经难得地温和了,医生严重警告过,想多活几年,就少发脾气,他的心脏比家里喂养的肉鸡强不了多少,承受能力极为脆弱。

父亲亲眼看见一只肉鸡因为隔壁人家办喜事,一个响炮吓得当场死亡,连扑棱一下翅膀挣扎的意识都没有,父亲当时脸就白了。

我是在父亲脸色真正白如锡纸时赶回的乡下,他住院,我回来护理,说护理有点自欺欺人,是母亲行使护理的职责,我的回来,是担心父亲突然就走了路,好歹我是文化人不是,父母在不远游顾这类古训不遵也就算了,病榻前总得有点端茶递水的模样吧。

父亲七十有三了呢。

居然叫父亲熬了过来,那晚,我在病房里百无聊赖陪床看电视打发漫漫长夜。

是一个家庭伦理剧,里面有一个场景,比较煽情的那种,一对彼此仇视多年的父子冰释前嫌抱头痛哭,已是弥留之际的父亲问那个儿子,说你恨我不?儿子泣不成声说,不恨,如果有下辈子,我还要做你的儿子!我对这种桥段向来不以为意的,所以没看出半分泪点,父亲忽然不看电视了,转头看我,看得我很不自在。

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