题组训练二

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题组训练二苏教版六上数学

1题组训练（分数）二一、贝贝看一本450页的故事书，她第一天看了152，第二天看了301。

1．还剩多少页没有看？总页数×152＝第一天看的页数总页数×301＝第二天看的页数第一天看的页数＋第二天看的页数＝已看页数总页数－已看页数＝剩下页数① 第一天看的页数：450×152＝60（页）② 第二天看的页数：450×301＝15（页）③ 已看页数：60＋15＝75（页） ④ 剩下没看页数： 450－75＝375（页）答：还剩375页没有看。

2．两天中哪一天看的多？多多少页？总页数×（152－301）＝多的页数① 哪天看的多？ 152＞301第一天看的多 ② 多的页数：450×（152－301）＝450×101＝45（页）答：第一天看的多，多45页。

3．贝贝第三天应从哪一页开始看？已看页数＋1＝第三天开始看的页数 75＋1＝76（页）答：贝贝第三天应从第76页开始看。

4．贝贝已经看了几分之几？第一天看的几分之几＋第二天看的几分之几＝已看总页数的几分之几152＋301＝304＋301＝305＝61 答：贝贝已经看了总页数的61。

5．还剩下几分之几没有看？ 1－第一天看总页数的几分之几－第二天看总页数的几分之几＝剩下总页数的几分之几1－152－301＝3030－304－301 ＝3025＝65答：还剩下总页数的65没有看。

6．第一天比第二天多看了总页数的几分之几？第一天看的几分之几－第二天看的几分之几＝多看了总页数的几分之几152－301＝304－301＝303＝101 答：贝贝第一天比第二天多看了总页数的101。

7．第二天比第一天少看了几分之几？少看了总页数的几分之几÷第一天看了总页数的几分之几＝第二天比第一天少看了第一天的几分之几（152－301）÷152＝303÷152＝43 答：贝贝第二天比第一天少看了43。

2021年河南中考英语考前冲刺：阅读理解题组训练(二)

2021河南中考英语考前冲刺：阅读理解题组训练（二）1.One morning, a very successful businessman who had a big company was getting ready to go to his office. When he reached into his car and opened the door, a dog sleeping under his car suddenly came out and bit（咬）on his leg. The businessman quickly picked up a few stones and threw at the dog, but none hit the dog. The dog ran away.As soon as he reached his office, the businessman called a meeting of his managers to ask about their tasks, and during the meeting he put anger of the dog on them. The managers also got upset by the anger of their boss and they put their anger on the workers under them. The chain of this reaction kept going, and finally the anger reached to the office cleaner.Now, there was no one working under the cleaner! So, when the office time was over, he reached his home, and his wife opened the door. She asked him, "Why are you so late today?" The cleaner said loudly, "I didn't go to the office to play football. I went to work so don't irritate me with your stupid questions!"So, the wife got upset for no reason. She put her anger on her son who was watching TV, saying, "This is all you do. You have no interest in studying! Turn off the TV now."The son got upset too! He walked out of his house and saw a dog passing by looking at him. He picked up a stone and hit the dog in anger. The window of the businessman's car in front of the building was broken unluckily.（1）The businessman got angry at the meeting because ________.A.the company had a lot of problemsB.the managers didn't finish the tasks on timeC.his leg was bitten by a dogD.the window of his car was broken（2）We can infer（推断）from the passage that ________.A.the anger kept going to the lower level of the workersB.the cleaner knew why his leader put anger on himC.It's not bad for the managers to attend the meetingD.something enjoyable happened in the company（3）What does the underlined word "irritate" mean?A.安慰B.激怒C.照顾D.侮辱（4）The wife asked her son to turn off the TV because ________.A.he wasn't interested in studyingB.the family had a poor lifeC.he should go out for exerciseD.she was upset and tried to put her anger on him（5）What can we learn from the passage?A.Be careful of a sleeping dog under a car.B.Hold in your anger and don't hurt those around you.C.Take a few moments to collect your thoughts.D.Anger itself isn't a problem.2.If you like nature, Mona Island is a wonderful place to take a vacation. There are beautiful beaches and caves for you to explore. Some of the animals living there are not found anywhere else in the world. There are many things that make Mona Island an unusual place.Mona Island is very small. The only way to get there is by taking a long boat ride from the Island of Puerto Rico.The government of Puerto Rico takes care of Mona Island and has made it a natural reserve. Mona Island is different from most places because people mustn't live there. There are only a few forest ranges for people to stay in.The forest rangers' job is to keep Mona Island safe and beautiful. They make people follow the rules here. One rule is that only 100 people each time can visit the island.Visitors to Mona Island have to prepare carefully for their trip. Visitors can only sleep in some areas and must bring their own tents. And if they want anything to eat or drink, they have to bring that along too. But if you are glad to take the trouble to come to Mona Island, you will enjoy many wonderful sights. I'm sure.（1）What is Paragraph 1 mainly about?A.The location of Mona Island.B.The weather of Mona Island.C.Why people should go to Mona Island.D.Why people should protect Mona Island.（2）How can people get to Mona Island from the Island of Puerto Rico?A.By plane.B.By boat.C.On foot.D.By car.（3）What should visitors do before going to Mona Island?A.Read about Puerto Rico.B.Find a comfortable hotel.C.Collect information about the animals there.D.Make sure they have a tent, enough food and water.3.One day a man went to the market and brought home some peaches. He said to his four sons, "I have bought a peach for each of you, and one for your mother." They took the fruit and thanked their father. It was not often that they could have such fine peaches.In the evening the father said, "Well, boys, what did you do with those peaches?"The eldest son said, "I ate mine, and found it very sweet and juicy. I have put the stone away, and in the spring I will plant it. If it grows, I will have a peach tree of my own.""You have done right," said his father. "It is a good thing to think of having something for yourself tomorrow."Theyoungest son then said," I ate my peach and threw away the stone, and Mother gave me half of hers. It tasted so good.""Well," said his father, "you are a little boy. But you should not have been so quick to eat the peach and throw away the stone."The second son said, "I picked up the stone which he threw away. I broke it open and ate the kernel. Then I sold my peach for enough to buy three peaches the next time I go down the street."The father wasn't very happy with this answer. He said, "It is right to think of having something for yourself, but you have acted in a way that I am afraid will make you selfish and greedy."The third son said, "I did not eat my peach. I gave it to the little sick boy who lives next door. The doctor said peaches would do him good, but his mother is too poor to buy any for him."The other three boys felt that this boy had made the best use of his peach.（1）What can we learn about the father from Paragraph 1?A.He didn't like eating peaches.B.He brought home five peaches.C.He often bought peaches for his sons.D.He picked the peaches from a peach tree.（2）What did the eldest son think of his peach?A.It was big.B.It was fresh.C.It looked beautiful.D.It tasted good.（3）What did the second son do with his peach?A.He sold it.B.He ate it.C.He gave it to his mother.D.He traded it for something else.（4）Who was thought to make the best use of his peach?A.The eldest son.B.The second son.C.The third son.D.The youngest son.4.Mary is eleven. She has long hair and brown eyes. Her ears are small.Mary lives in the center of the city. There is a post office next to her house. There is a coffee shop behind her house and a supermarket in front of her house. But there aren't any schools near her house. Mary often goes to the supermarket to buy fruit. She likes apples and bananas, but she likes strawberries best.Now Mary is in her bedroom. The room is in a mess! Her jeans are on the floor. There is one sock on the sofa and the other one is gone（不在的）. Her mom is very angry. She says to Mary, "Tidy up your room! Put the jeans away and find the socks."Mary likes playing table tennis and she often plays with her classmates after school. She doesn't like playing basketball, because she is not tall. In spring, Mary likes to help her grandma work in the garden（花园）. And in summer, she would like to go camping（去野营）with her grandpa. She thinks they' re interesting.（1）You can't find ________ near Mary's house.A.a coffee shopB.a schoolC.a supermarket（2） ________ are Mary's favorite fruit.A.ApplesB.BananasC.Strawberries（3）The underlined words " in a mess " in Paragraph 3 mean "________" in Chinese.A.破旧不堪B.嘈杂喧闹C.杂乱无章（4）From the passage we know Mary ________.A.isn't tallB.has small eyesC.never works in the garden5.Lisa SantoriSpaghetti Street2462 CRome, Italy（1）How is the weather in Shanghai now?A.Sunny.B.Rainy.C.Windy.（2）Who is Lisa?A.Sophie's friend in Italy.B.Sophie's friend in China.C.Sophie's aunt in China.（3）Which of the following is TRUE?A.Sophie comes to China to learn Chinese.B.Sophie would like to travel around Shanghai tomorrow.C.Sophie thinks her brother is lazy because he doesn't cook.6."Love is still alive!" Wang Zhiru from Jiangxi Academy of Forestry, said excitedly when receiving a picture of a white crane（鹤）on January 3rd2019. The white crane they named Love was saved and set free in early 2018.Love was first found on April 24th 2018, when Li Zengming, a farmer, drove past a reservoir（水库）in the countryside of Nanchang, capital of Jiangxi Province. Seeing ittrying to fly but falling again and again, Li thought that it might be hurt. He drove to the shore and went into the water to save it. "I saw the white crane with dull eyes and a weak body. It was probably hurt. If I let it alone, it would be in danger," Li recalled. After more than half an hour, Li finally took the white crane back to the shore.Then he called his uncle, an experienced animal saver for help. "Come over immediately and let's send it to the police station right away" said his uncle. When seeing the weak wild crane, Jiang Qingchun from the Five-Star Police Station, put down his work and checked it carefully."At the end of April, migratory（迁移的）birds usually return to the north. It's abnormal for a white crane to still be living nearby. It may be left behind because of its poor health." Jiang said. He contacted Wang at the Jiangxi Academy of Forestry for help. Wang's team found Love did not seem to be hurt or have illness, but it suffered（遭受）from hunger and tiredness. After five days' treatment, its weight rose from 3.75 kg to 4 kg.Being kept for long will be bad for birds' ability to live in the wild. Wang's team decided on May 2nd to set it free at a place in northern China so that it could join the migrating group heading for Siberia in Russia. On May 8th, Love was set free at the Momoge National Nature Reserve.（1）When did the farmer find Love for the first time?A.On May 2nd, 2019.B.On May 8th, 2019.C.On April 24th, 2018.D.On January 3rd, 2019.（2）The underlined word "abnormal" in Paragraph 4 means ________.A.unhappyB.unusualC.unknownD.unlucky（3）What was wrong with Love?A.It was hurt.B.It was weak and lost.C.It was dead.D.It was hungry and tired.（4）What does the underline words "set free" mean?A.释放B.逮捕C.饲养D.杀害（5）What is the best title of the passage?A.Love hurtB.Love lostC.Love foundD.Love gone7.Perhaps you have heard the expression "When in Rome, do as the Romans do". So when you want to do business in France, you have to get to know French culture, to make marketing plans, and to run your business by local laws.Language should be the focus of anyone planning to do business in France. The French take great pride in their language, so anyone who does not speak it may run the risk of being disrespected（不尊敬）by his French workmates or business partners. Also, another reason why learning French is important is that it is a great way to show every possible French business partner that you care and respect their country's culture and language.The first thing that you should do when meeting someone new is to shake his hand and always look the person in the eye. In social meetings with friends, kissing is common.Use first names only after being invited to. Use Monsieur or Madame before the familyname. The French will sometimes introduce themselves using their family name first, followed by their first name.Dress well. The French get information about people based on their appearance（外貌）. Your business clothing is a reflection（反映）of your success and social status. Always try to be tasteful and stylish. Women are advised to dress simply but elegantly. Business women usually wear make-up.Lunches are common in doing business in France, which usually have an appetizer, main meal with wine, cheese, dessert and coffee. Don't eat quickly. French lunches usually last two or three hours. This is a time to build relationship.Do not begin eating until the host says, "bon appetite". Pass dishes to the left, keep hands above the table and try to eat everything on the plate. Be careful with adding salt, pepper or sauces to your food. This may suggest that you find the food tasteless. If eating in a restaurant, the person who invites always pays.（1）Paragraph 2 mainly talks about ________ if you plan to do business in France.A.why it is important to learn FrenchB.what French culture you should knowC.how you can learn the language wellD.how you can get on with your partners（2）In France, when you meet someone for the first time, you are supposed to ________.A.kissB.bowC.shake handsD.look the person in the eye（3）If a French man named Alban Martin is introduced to you, you'd better call him________.A.AlbanB.MartinC.Monsieur AlbanD.Monsieur Martin（4）What does the underlined word "elegantly" in Paragraph 5 most probably mean in Chinese?A.雅致地B.复杂地C.邋遢地D.随意地（5）According to the last paragraph, what are you supposed to do while you are having a meal at a table with other people?A.Pass dishes with your left hand.B.Eat all the food on the plate.C.Add salt or pepper to your food.D.Let the host start eating first.8.Space vegetables are grown from seeds（种子）that have been taken to space and brought back to the earth. The seeds are affected（影响）by the radiation（辐射）and low gravity（重力）in space. When they are brought back to the earth, these seeds produce vegetables that are bigger and healthier than normal vegetables. However, some people worry about eating space vegetables. They think that space vegetables might not be good for us andcould make us get sick because of the radiation in space. However, people should not be frightened because space vegetables are very healthy.Here are some facts that you should know about space vegetables.Space vegetables are grown from seeds that are carefully chosen. When seeds are brought back from space they are tested to make sure that they will be safe to eat.Space vegetables are better for you than normal vegetables. For example, space tomatoes stay fresh for twenty days, which is one week longer than normal tomatoes.After genetically modified（转基因）food appeared in the market, people worried that they were eating unknown things. For example, if nut genes（坚果基因）are put inside potatoes, people allergic（过敏的）to nuts might get sick from eating these potatoes because they do not know they are also eating nuts. Unlike genetically modified food, space vegetables have not been genetically changed. This means that no new genes are put into the vegetables. Therefore, there are no dangers of eating unknown.（1）According to Paragraph One, how are the space vegetables?A.More delicious.B.Healthier and bigger.C.More dangerous.D.Cheaper and healthier.（2）According to Paragraph 4, how long can normal tomatoes stay fresh?A.For seven day.B.For twenty days.C.For thirteen days.D.For twenty-seven days.（3）What's the difference between space vegetables and genetically modified food?A.Space vegetables have no new genes.B.Space vegetables are grown in space.C.Space vegetables have nothing unknown.D.Space vegetables are genetically changed.（4）What does the writer want to tell us?A.The seeds of space vegetables are taken to space.B.Everybody worries about eating space vegetables.C.Space vegetables are safe and good for people to eat.D.Space vegetables bring us illness because of the radiation.参考答案1.【答案】CABDB2.【答案】CBD3.【答案】BDAC4.【答案】BCCA5.【答案】BAB6.【答案】CBDAC7.【答案】ACDAB8.【答案】BCAC。

小学奥数培优题组(经典题库)

经典题库（一）题组训练1计算:999……99×999……99=9个9 9个9999……99×999……96=2008个9 2007个9999……99×777……78=2008个9 2007个7333……3×666……6=2008个3 2008个6题组训练2１、车站每5分钟发一辆车，从上午6:00——上午6:30共发_________辆车。

2.车站每20分钟发一辆车，从上午6:00——上午8:00共发_________辆车。

3.四轮小汽车有一个备用胎，五个轮子轮流行驶，这辆车共行驶了10分钟，每个轮子平均行驶了________分钟。

4.四轮小汽车有一个备用胎，五个轮子轮流行驶，这辆车共行驶了20分钟，每个轮子平均行驶了________分钟。

5.有13人打牌比赛，四人一组，选一人继续比赛，淘汰3人，现要决出冠军，问要共比赛_________场（每一个四人小组当着一场来计算）。

6.有124人打牌比赛，四人一组，选一人继续比赛，淘汰3人，现要决出冠军，问要共比赛_________场（每一个四人小组当着一场来计算）。

题组训练31.一个六位数6□5能被7整除，这样的数是______2.一个两位数除以8，商是A，余数是B，A＋B的最大值是_______．3.用10,10，4,4,四个数在它们之间添上运算符号“＋，－，×，÷”及括号，使它们的结果等于24（每个数只能用一次）题组训练41、把四位数2abc扩大3倍后便成了另一个四位数abc8。

求abc=__________2.六位数1abcde扩大3倍后便成了abcde1，求1abcde=___________3.八位数2abcdefg×3= abcdefg4，求abcdefg=____________题组训练51.某商店规定，3个空汽水瓶换一瓶汽水，某人在这个商店至少需购买_______汽水，就可以喝到21瓶汽水。

高考圈题(新课标II卷)高考生物总复习题组训练2 物质进出细胞的方式-人教版高三全册生物试题

题组2物质进出细胞的方式（一）、考法解法命题特点分析本考点是轮考内容，考查形式基本是单选题，难度系数在0.4左右，考查难点是物质进出的基本过程，本考点主要考基础概念和基本技能，主要考查考生对基本概念的熟记程度。

解题方法荟萃现今高考注重学生能力的培养，题干的设置更复杂更隐晦更难把握，而些类试题一旦审题失误，必错无疑。

如何审限制条件（找“题眼”）就显的优为重要了，限制条件的种类很多，如时间，原因，影响等。

限制的程度也不同，如根本，直接，最终等，选择的方向也有肯定与否定之分，如是，不是，正确，错误等。

描述的对象也有不同，如植物细胞，动物细胞，表皮细胞，叶肉细胞，根尖细胞，T2噬菌体，细菌，蓝藻，真菌，原核生物，真核生物等，这些限制条件，其设问指向不同，往往提示了解题的思路。

故应注意相关概念的区别，掌握相关概念的内涵和外延。

（二）、真题剖析【题干】（2014•某某）如图为氨基酸和Na+进出肾小管上皮细胞的示意图，下表选项中正确的是（）选项管腔中氨基酸→上皮细胞管腔中Na+→上皮细胞上皮细胞中氨基酸→组织液A 主动运输被动运输主动运输B 被动运输被动运输被动运输C 被动运输主动运输被动运输D 主动运输被动运输被动运输【答案】D【解析】(命题意图)物质跨膜运输主要包括两种方式：被动运输和主动运输，被动运输又包括自由扩散和协助扩散．被动运输是由高浓度向低浓度一侧扩散，而主动运输是由低浓度向高浓度一侧运输。

其中协助扩散需要载体蛋白的协助，但不需要消耗能量；而主动运输既需要消耗能量，也需要载体蛋白的协助。

(解题点拨)根据图形可知，肾小管管腔中的氨基酸进入上皮细胞为逆浓度的运输，属于主动运输（其动力来自于Na+协同运输中的离子梯度）；管腔中Na+进入上皮细胞的过程中，是由高浓度向低浓度一侧扩散，并且需要载体蛋白的协助，属于被动运输中的协助扩散；上皮细胞中氨基酸进入组织液的过程中，是由高浓度向低浓度一侧扩散，并且需要载体蛋白的协助，属于被动运输中的协助扩散。

2023届高考英语备考一轮复习七选五专题训练题组 (2)

全国百所名校2023年高考英语备考一轮复习资料七选五专练题组汇编（二）姓名：班级：得分：A（难度：❤❤❤）V olunteering means to carry out a duty or a job without expecting repayment or reward. The concept is very popular in advanced or rich countries. But in some countries, many people look at volunteering as a waste of time and effort ____1____.One is immediately seen as selfless and helpful when one volunteers to help out someone such as a friend，teacher or parent. ___2____, when you help a teacher to clean the classroom or get involved in a cleanliness campaign at the school level or other community projects Teachers and adults would look at a young person who volunteers his or her time for certain activities as mature, responsible and deserving of respect.In addition, volunteering with an organization such as orphanages, community centers and other non-profit organizations allows you to interact with society at large. In addition to helping these organizations carry out their duties, you not only gain experience but can learn a variety of skills. ____3____ . Even though they are not being aid, through volunteering time, effort and skills, one would learn more than what money can buy.____4____ . For example, if you volunteer your time regularly at a charity organization, you would learn how the organization works and the importance of teamwork, and other essence ideas related to the day-to-day operations of the organizations.Thus, with so many benefits, students, in particular, should be allowed to participate volunteer activities. ____5____ .A．You will feel you are proudB．Your standing would be liftedC．This is especially beneficial to studentsD．One should actively be involved in volunteeringE．However, one can gain many benefits from volunteeringF．They can learn useful interpersonal and organizational skillsG．V olunteering also exposes one to many interesting ideas and issuesB（难度：❤❤❤）Many people travel to enrich and enjoy themselves. As a Persian writer said:“Travel brings power and love back into your life.” However, their travel methods may be different each year.___1____. Let’s take a look.Traveling aloneTraditionally, travel seems to be a group activity to have fun together and avoid loneliness. But traveling alone has become popular, especially among young people.Traveling on your own means that you are the boss of everything, choosing wherever you want to go, whatever you eat and whenever you go out. For some people, it also offers a chance to find themselves a more confident person that is ready to deal with anything. ___2____. “You have to face new things and it pushes you out of your comfort zone,” a traveler from the US, told Travel Pulse.Virtual（虚拟的）realityWorld travel can be expensive. But virtual reality, or VR is giving more possibilities to travel for little cost. With ever-improving headsets（头戴式视读器）, smartphones and Wi-Fi connections, people can have a 360-degree experience of museums, theme parks and historical places. ___3___ or view a sea horse giving birth to babies before their eyes in a museum with just a headset on.___4___There are always some “must-see” places anywhere you travel. But traveling in such places always brings problems like overcrowding and noise. In order to have a better travel experience, many tend to visit less famous places. With less transportation and fewer things to do, hitting up a little town gets people to slow down and notice the little things. __5__.A．You may find out that you are likely to become a boss in the futureB．But traveling in a completely foreign land alone can be challengingC．Here are some top choices for this yearD．Slowing down to enjoy the tripE．Getting off the crowded pathF．Take a walk, ride a bike, drink coffee and explore the natural sceneryG．With these technologies, visitors can experience the surface of MarsC（难度：❤❤❤）Not all lessons can be learnt in a classroom environment. Overall development of students demands that they get the opportunity to participate in after-class activities in school. ____1____ Students are given a chance to join in activities like sports, art, music, etc, and they can get the required break from dull classroom learning.In some schools, participating in these activities is made compulsory while some keep it voluntary for students. There is a common mistaken belief that these events are not as important as regular learning. ____2____ Here is what students could learn by participating in them.____3____ These are skills that are essential to meet the demands of a busy working life and are best if developed early. As adults, they’ll need to schedule several tasks in professional and personal life reasonably.Just as classrooms have different subjects to teach students, after class activities in school also give them a chance to explore new kinds of art and sports. ____4____Participating in after-class activities in school requires the students to commit to them for some time. Through this they learn the concept of long-term commitment. ____5____Participatingin particular events in school trains the child to make commitments sensibly and to stick to them. A．This gives them required discipline.B．It directs their attention in the wrong direction.C．Active participation will help to raise self-respect.D．This helps them understand where their interest lies.E．Students can learn to manage their time and priorities.F．This is why some top schools aim for a perfect balance.G．Contrarily, they develop qualities in students like team spirit.D（难度：❤❤❤）Habits to Be a Highly Effective StudentSome students are able to get straight A’s and at the same time serve as the president of three clubs. However, some students struggle to keep their GPA (Grade-Point Average) above a 3.0. And they seem to spend all of their time in studying. Although it’s true that everyone’s IQ is different, good study habits are very important. __1_____2___ If you haven`t had a planner(规划薄), get one. Many people use their computers and smartphones to make a schedule. The problem with that approach is that they are major distractions(分心的事物). Instead, get an old-fashioned paper and pen planner.Create a weekly schedule. _3___ Include time that will be spent eating, sleeping and doing anything not related to school work. That way you know exactly how much you can accomplish each day.Take frequent, short breaks. Taking a break from studying for 15 minutes every hour will help keep you refreshed. ___4__ If you don’t take a break, you may find yourself daydreaming or even falling asleep. Take some time for some water, a snack or a quick chat with a friend.Take care of yourself. During final exam week, it is common for students to fall behind on sleep and meals. Make sure you get a good night’s sleep and have regular meals. Studying while hungry or sleepy is ineffective and will slow you down in the long run. Also try to make time for friends and family. ___5__.A．Keep things organized.B．Keep away from your computers.C．Of course, not everyone needs breaks.D．Our brains are not meant to work for hours nonstop.E．Having a good support system will help with all the stress.F．Here are several habits you should adopt to get good grades.G．Then under each day, make a list of things to do each hour.E（难度：❤❤❤）How to Respond when Someone Judges YouDealing with judgment from other people can be tough, especially when it’s coming from a friend, family member, or colleague. Judgmental people are unavoidable, but you can easily deal with their criticism using positivity and compassion.Rid yourself of the judgment. Remember that a judgmental person’s words are a reflection of their own beliefs-and not yours. Critical people criticize themselves more than anyone else.____1____.Be sympathetic. Practice sympathy to understand the source of this person’s judgment. It could be that they were judged by parents, family, or friends, in which case this person’s critical attitude would be something they learned(and not necessarily intentional). While that doesn’t excuse their behavior, having sympathy can inform your response. Say things like “____2____,” or “I see where you’re coming from, but…” when you respond to someone’s judgment.Ask for clarification. ___3____. Ask this person to explain what they said, and find out their motivation for saying it. You could ask then, “What are you trying to say? If you have constructive criticism, I’m open to hearing it.” That way, you’re giving the other person a gentle reminder to phrase their words constructively.____4____. Be polite but firm when you call out judgmental people. If somebody crosses a line and makes you feel criticized, tell them how you feel. If someone is giving you criticism you didn’t ask for, you could say, “____5____, and I have a plan that works for me.”A．Stop talking like thisB．Set boundaries in the conversationC．I understand why you feel that wayD．I feel like I need to deal with this in my wayE．I know you want to talk but this is a sensitive subject for meF．Judgmental people may not know they’re being rude or unreasonableG．So the judgment they pass isn’t actually about you, though it can feel personal全国百所名校2023年高考英语备考一轮复习资料七选五专练题组汇编（二）EBCGF【分析】本文是说明文，介绍了做志愿者给学生带来的积极益处。

句子翻译训练题组(1-20)答案版

句子翻译训练——题组（一）1. A good book is equal to a good friend.【译】2. Never fear to think because we will benefit from thinking.【译】3. He hesitated for a long time before he made the decision to study in America.【译】4. You'd better go to the airport by underground, or you'll miss the flight.【译】5. Every one of us should do our part to make the world a better place to live in.【译】答案：1. 好书如益友。

2. 不要害怕思考，因为思考总能让人有所收益。

3. 他犹豫了好久才决定去美国留学。

4. 你最好乘地铁去机场，不然就要误点了。

5. 我们每一个人都应该尽自己的一份力使我们的生活环境更美好。

句子翻译训练——题组（二）1. The Chinese people warmly celebrate national Day on Oct. 1 every year.【译】2. It is obvious that the education of the young is vital to the future of a country.【译】3. Every one of us is sparing no effort to get prepared for the coming College Entrance Examination.【译】4. To his excitement, he realized his dream of becoming a volunteer for the 2010 World Expo in Shanghai.【译】5. Besides his routine work, he also has a part-time job at weekends and his monthly income adds up to 10,000 Yuan.【译】答案：1. 中国人民每年都要热烈庆祝十月一日的国庆节。

中考英语题组训练2 用所给单词的适当形式补全短文

题组训练2 用所给单词的适当形式补全短文用所给单词的适当形式补全短文，必要时可加助动词、情态动词或否定词。

(每空不多于三个单词)A[2017·乐山]One day a man bought a lot of coconuts(椰子) and put them all on his horse. He was moving them to his 1.________(friend) house. On the way, the man met a boy. “How long would it take to get to the house？” he asked the boy.“If you go 2.________(slow)，” the boy said, “you will get there very soon. But if you go fast, it will take you all day.”“What a funny reply！” said the man. He did not listen to the boy. He made his horse run as fast as possible. Some coconuts fell off. He had to stop 3.________(pick) them up. Then he made his horse run fast again. But the coconuts fell off again, and he 4.________(stop) again.He did this many 5.________(time), and it was night when he finally got to his friend's house.B[2018·原创]Once upon a time, a girl and a boy were playing together and found a secret laboratory by accident. They 1.________(enter) and found a mysterious machine. They pressed a button(按钮) and the machine 2.________(turn) the boy into the size of a marble(弹珠). The children tried 3.________(stop) this action, but couldn't do it, and couldn't find anyone to help.The girl picked up her friend and 4.________(put) him in her backpack to take him home. The backpack was very disorganized and full of all kinds of things, and the journey home 5.________(be) just terrible for the boy, who couldn't help but cry.When the girl tried to get him out of the bag, things were so jumbled(混乱的) that she 6.________(not find) him. After many tries, she decided 7.________(remove) every thing, one by one. Thanks to this way, she finally found her friend.Both children learnt the importance of 8.________(keep) things in order, even inside a backpack. The next day they went back to the laboratory, where a nice inventor managed to return the boy to his normal size.C[2017·昆明]In November 1979, pupils in England 1.________(be) able to watch a new TV program called Monkey. Most of them were hearing this story for the 2.________(one) time. However, this story is not new to Chinese children. The Monkey King or Sun Wukong is the main character in the traditional Chinese book Journey to the West.The Monkey King is not just any 3.________(normally) monkey. In fact, he sometimes does not even look like a monkey! This is because he can make seventy-two 4.________(change) to his shape and size, turning himself into different animals and objects. But unless he can hide his tail, he 5.________(can) turn himself into a man. To 6.________(fight) bad people, the Monkey King uses a magic stick. Sometimes 7.________(him) can make the stick so small that he can keep it in his ear.8.________(at) other times, he is able to make it big and long.The Monkey King 9.________(excite) the children of China for many years. And as soon as the TV program came out more than 30 years ago, Western children became interested in 10.________(read) this story, because the clever Monkey King keeps fighting to help the weak and never gives up.DBridges are built for many reasons. Some bridges are built so that cars can cross over rivers. Others are 1.________(make) for trains to use. In Washington State, there is a very unusual bridge. It was built for squirrels(松鼠)．The town of Longview 2.________(have) a very busy street. Many cars pass it every day. When squirrels tried to cross thestreet, they 3.________(kill). Amos Peters wanted 4.________(protect) these small and lovely animals, so he built a bridge for them—one that would let them 5.________(pass) above the traffic.The bridge 6.________(be) a symbol of the town for over 40 years since then. And every Christmas, the local people7.________(add) a small Christmas tree to the center of the bridge. How lovely!A few years ago, the local people 8.________(create) a squirrel festival and they raised money 9.________(build) two more bridges for these lovely animals. For years, because of the bridges, the squirrels in the town have been able 10.________(cross) safely from one side of the street to the other.E[2018·原创]Winter is cold. People live in warm houses. What do animals do? Animals are smart. They do many 1.________(difference) amazing things to get through the winter. Some of them “migrate(迁徙)”. This means they travel to other 2.________(place) where the weather is warmer or where they can find food.Many birds migrate in autumn. Because the trip can be 3.________(danger), some travel in large groups. Many fish migrate. They may swim south, or move into deeper and 4.________(warm) water. Insects also migrate. Insects like earthworms move downward into the soil and some as far as six feet below the surface.Some animals remain active in winter. They must fit the changing weather. Many make changes in their 5.________(behave) or bodies. 6.________(keep) warm, animals may grow new and thicker fur in the fall. Some animals begin to collect their winter food in autumn. When it's very cold, they stay inside their homes. They can 7.________(eat) the food they collect in autumn. Squirrels collect seeds and nuts. They are safe and warm in their 8.________(home) in winter.Some animals hibernate(冬眠) for part or all of the winter. This is a special very deep sleep. The tem-perature of the animals' bodies 9.________(drop) and its heartbeat and breath slow down. It uses very little energy. In autumn, these animals get ready for the winter by 10.________(eat) much food and storing it as body fat. They use this fat for energy while hibernating. Some also store food like nuts to eat later in winter.F[2017·潍坊]In my life, a person who has influenced me most is my father. He is a model for me. Now I'll tell you about his story. My father is in his 1.________(fifty). He never smokes or drinks. He 2.________(work) in a local factory for years. You will not find anything 3.________(usual) about him until you learn more. He works 4.________(care) all the time, so he 5.________(respect) by his colleagues. My father has always been kind and helpful. He has fun 6.________(talk) with old people. He gave our TV to a family who could not afford one. He cares for the children who have lost their parents. Whenever he has some money left, he 7.________(give) it to someone in need.My father has donated blood many times since we 8.________(move) here. The blood he has donated is much enough 9.________(save) over 70 lives. He has donated blood cells to people with blood cancer. To my surprise, he has decided to donate his body for medical research after his 10.________(die)．When I was a little girl, I could not understand why my father always seemed to be 11.________(kind) to others than to his own family and why he thinks of others more than 12.________(he). Now I realize that he owns a heart full of love.GLike most Chinese, Mr. Zhang has a traditional family. Both he and his wife 1.________(be) middle school teachers while their 7-year-old son is a pupil. Mr. Zhang's mother lives with them and helps 2.________(look) after the kid. They love each other and live a happy life.Yesterday was Mr. Zhang's mother's birthday. The couple wanted to do something 3.________(show) their love to her.After a big dinner, Mr. Zhang 4.________(bring) a basin(盆) of warm water and asked his mother to sit in front of the basin. He took off her shoes and put her 5.________(foot) into the water. After that he began to wash them 6.________(careful). His wife helped to comb(梳) his mother's hair slowly. Seeing this, the boy followed his mother's example. He tried to comb his mother's hair, too. But he was not tall enough to do that. So he got a chair and stood on it. Everyone could feel the 7.________(warm) and love in the family.As we all know, respecting the old and 8.________(take) care of the young is a good Chinese tradition. We should try our best 9.________(care) for our family. We should 10.________(visit) our parents as often as possible and spend time with them even though we may work far away. Indeed, family is a place for happiness.参考答案A【主旨大意】本文讲述了一个故事。

初一实数计算-二元一次方程组专题训练题两组四十道

专题计算题训练（一）（1）计算题：|﹣2|﹣（1+）0+（2）﹣12009+4×（﹣3）2+（﹣6）÷（﹣2）（3）（4）||﹣（5）解方程组：（6）66x+17y=3967(7) 18x+23y=230325x+y=120074x-y=1998(8) 44x+90y=7796(9) 76x-66y=408244x+y=347630x-y=2940(10) 67x+54y=8546 (11) 42x-95y=-141071x-y=5680 21x-y=1575(12) 47x-40y=853(13) 19x-32y=-178634x-y=200675x+y=4950(14) 97x+24y=7202 (15) 42x+85y=636258x-y=290063x-y=1638（16）2X+3＞0 （17）2X＜-1 （18）5X+6＜3X -3X+5＞0 X+2＞0 8-7X＞4-5X （19）2（1+X）＞3（X-7）（20）2X＜44（2X-3）＞5（X+2）X+3＞0专题计算题训练（二）（1）；（2）．（3）（4）．（5）（﹣2）3+（﹣3）×[（﹣4）2+2]﹣（﹣3）2÷（﹣2）；(6) 85x-92y=-2518(7) 79x+40y=241927x-y=48656x-y=1176(8) 80x-87y=2156(9) 32x+62y=513422x-y=88057x+y=2850(10) 83x-49y=82(11) 91x+70y=584559x+y=218395x-y=4275(12) 29x+44y=5281 (13) 25x-95y=-435588x-y=360840x-y=2000(14) 54x+68y=3284(15) 70x+13y=352078x+y=140452x+y=2132（16）1-X＞0 （17）5+2X＞3 （18）2X+4＜0 X+2＜0 X+2＜8 1/2（X+8）-2＞0 （19）5X-2≥3（X+1）（20）1+1/2X＞21/2X+1＞3/2X-3 2（X-3）≤4(21) 48x-54y=-3186 24x+y=1080答案：x=45 y=99 (22) 36x+77y=7619 47x-y=799答案：x=17 y=91 (23) 13x-42y=-2717 31x-y=1333答案：x=43 y=78 (24) 28x+28y=3332 52x-y=4628答案：x=89 y=30 (25) 62x-98y=-2564 46x-y=2024答案：x=44 y=54 (26) 79x-76y=-4388 26x-y=832答案：x=32 y=91 (27) 63x-40y=-821 42x-y=546答案：x=13 y=41 (28) 69x-96y=-1209 42x+y=3822答案：x=91 y=78 (29) 85x+67y=7338 11x+y=308答案：x=28 y=74 (30) 78x+74y=12928 14x+y=1218答案：x=87 y=83 (31) 39x+42y=5331 59x-y=5841答案：x=99 y=35 (32) 29x+18y=1916 58x+y=2320答案：x=40 y=42 (33) 40x+31y=6043 45x-y=3555答案：x=79 y=93(34) 47x+50y=8598 45x+y=3780答案：x=84 y=93 (35) 45x-30y=-1455 29x-y=725答案：x=25 y=86 (36) 11x-43y=-1361 47x+y=799答案：x=17 y=36 (37) 33x+59y=3254 94x+y=1034答案：x=11 y=49 (38) 89x-74y=-2735 68x+y=1020答案：x=15 y=55 (39) 94x+71y=7517 78x+y=3822答案：x=49 y=41 (40) 28x-62y=-4934 46x+y=552答案：x=12 y=85 (41) 75x+43y=8472 17x-y=1394答案：x=82 y=54 (42) 41x-38y=-118029x+y=1450答案：x=50 y=85 (43) 22x-59y=824 63x+y=4725答案：x=75 y=14 (44) 95x-56y=-401 90x+y=1530答案：x=17 y=36 (45) 93x-52y=-852 29x+y=464答案：x=16 y=45 (46) 93x+12y=8823 54x+y=4914答案：x=91 y=30 (47) 21x-63y=84 20x+y=1880答案：x=94 y=30 (48) 48x+93y=9756 38x-y=950答案：x=25 y=92 (49) 99x-67y=4011 75x-y=5475答案：x=73 y=48 (50) 83x+64y=9291 90x-y=3690答案：x=41 y=92 (51) 17x+62y=3216 75x-y=7350答案：x=98 y=25 (52) 77x+67y=2739 14x-y=364答案：x=26 y=11 (53) 20x-68y=-4596 14x-y=924答案：x=66 y=87 (54) 23x+87y=4110 83x-y=5727答案：x=69 y=29 (55) 22x-38y=804 86x+y=6708答案：x=78 y=24 (56) 20x-45y=-3520 56x+y=728答案：x=13 y=84 (57) 46x+37y=7085 61x-y=4636答案：x=76 y=97 (58) 17x+61y=4088 71x+y=5609答案：x=79 y=45(59) 51x-61y=-1907 89x-y=2314答案：x=26 y=53 (60) 69x-98y=-2404 21x+y=1386答案：x=66 y=71 (61) 15x-41y=754 74x-y=6956答案：x=94 y=16 (62) 78x-55y=656 89x+y=5518答案：x=62 y=76 (63) 29x+21y=1633 31x-y=713答案：x=23 y=46 (64) 58x-28y=2724 35x+y=3080答案：x=88 y=85 (65) 28x-63y=-2254 88x-y=2024答案：x=23 y=46 (66) 43x+50y=7064 85x+y=8330答案：x=98 y=57 (67) 58x-77y=117038x-y=2280答案：x=60 y=30 (68) 92x+83y=11586 43x+y=3010答案：x=70 y=62 (69) 99x+82y=6055 52x-y=1716答案：x=33 y=34 (70) 15x+26y=1729 94x+y=8554答案：x=91 y=14 (71) 64x+32y=3552 56x-y=2296答案：x=41 y=29 (72) 94x+66y=10524 84x-y=7812答案：x=93 y=27 (73) 65x-79y=-5815 89x+y=2314答案：x=26 y=95 (74) 96x+54y=6216 63x-y=1953答案：x=31 y=60 (75) 60x-44y=-352答案：x=44 y=68 (76) 79x-45y=510 14x-y=840答案：x=60 y=94 (77) 29x-35y=-218 59x-y=4897答案：x=83 y=75 (78) 33x-24y=1905 30x+y=2670答案：x=89 y=43 (79) 61x+94y=11800 93x+y=5952答案：x=64 y=84 (80) 61x+90y=5001 48x+y=2448答案：x=51 y=21 (81) 93x-19y=286x-y=1548答案：x=18 y=88 (82) 19x-96y=-5910 30x-y=2340答案：x=78 y=77 (83) 80x+74y=8088 96x-y=8640(84) 53x-94y=1946 45x+y=2610答案：x=58 y=12 (85) 93x+12y=9117 28x-y=2492答案：x=89 y=70 (86) 66x-71y=-1673 99x-y=7821答案：x=79 y=97 (87) 43x-52y=-1742 76x+y=1976答案：x=26 y=55 (88) 70x+35y=8295 40x+y=2920答案：x=73 y=91 (89) 43x+82y=4757 11x+y=231答案：x=21 y=47 (90) 12x-19y=236 95x-y=7885答案：x=83 y=40 (91) 51x+99y=8031 71x-y=2911答案：x=41 y=6069x-y=6003答案：x=87 y=16 (93) 46x+34y=4820 71x-y=5183答案：x=73 y=43 (94) 47x+98y=5861 55x-y=4565答案：x=83 y=20 (95) 30x-17y=239 28x+y=1064答案：x=38 y=53 (96) 55x-12y=4112 79x-y=7268答案：x=92 y=79 (97) 27x-24y=-450 67x-y=3886答案：x=58 y=84 (98) 97x+23y=8119 14x+y=966答案：x=69 y=62 (99) 84x+53y=11275 70x+y=6790答案：x=97 y=59 (100) 51x-97y=297（6）答案：x=48 y=47 (7) 18x+23y=230374x-y=1998答案：x=27 y=79 (3) 44x+90y=779644x+y=3476答案：x=79 y=48 (4) 76x-66y=408230x-y=2940答案：x=98 y=51 (5) 67x+54y=854671x-y=5680答案：x=80 y=59 (6) 42x-95y=-141021x-y=1575答案：x=75 y=48 (7) 47x-40y=853(8) 19x-32y=-1786 75x+y=4950答案：x=66 y=95 (9) 97x+24y=7202 58x-y=2900答案：x=50 y=98 (10) 42x+85y=6362 63x-y=1638答案：x=26 y=62 (11) 85x-92y=-2518 27x-y=486答案：x=18 y=44 (12) 79x+40y=2419 56x-y=1176答案：x=21 y=19 (13) 80x-87y=2156 22x-y=880答案：x=40 y=12 (14) 32x+62y=5134 57x+y=2850答案：x=50 y=57 (15) 83x-49y=82 59x+y=2183(16) 91x+70y=5845 95x-y=4275答案：x=45 y=25 (17) 29x+44y=5281 88x-y=3608答案：x=41 y=93 (18) 25x-95y=-4355 40x-y=2000答案：x=50 y=59 (19) 54x+68y=3284 78x+y=1404答案：x=18 y=34 (20) 70x+13y=3520 52x+y=2132答案：x=41 y=50 (21) 48x-54y=-3186 24x+y=1080答案：x=45 y=99 (22) 36x+77y=7619 47x-y=799答案：x=17 y=91 (23) 13x-42y=-2717 31x-y=1333答案：x=43 y=7852x-y=4628答案：x=89 y=30 (25) 62x-98y=-2564 46x-y=2024答案：x=44 y=54 (26) 79x-76y=-4388 26x-y=832答案：x=32 y=91 (27) 63x-40y=-821 42x-y=546答案：x=13 y=41 (28) 69x-96y=-1209 42x+y=3822答案：x=91 y=78 (29) 85x+67y=7338 11x+y=308答案：x=28 y=74 (30) 78x+74y=12928 14x+y=1218答案：x=87 y=83 (31) 39x+42y=5331 59x-y=5841答案：x=99 y=35 (32) 29x+18y=1916答案：x=40 y=42 (33) 40x+31y=6043 45x-y=3555答案：x=79 y=93 (34) 47x+50y=8598 45x+y=3780答案：x=84 y=93 (35) 45x-30y=-1455 29x-y=725答案：x=25 y=86 (36) 11x-43y=-1361 47x+y=799答案：x=17 y=36 (37) 33x+59y=3254 94x+y=1034答案：x=11 y=49 (38) 89x-74y=-2735 68x+y=1020答案：x=15 y=55 (39) 94x+71y=7517 78x+y=3822答案：x=49 y=41 (40) 28x-62y=-4934 46x+y=552(41) 75x+43y=8472 17x-y=1394答案：x=82 y=54 (42) 41x-38y=-1180 29x+y=1450答案：x=50 y=85 (43) 22x-59y=824 63x+y=4725答案：x=75 y=14 (44) 95x-56y=-401 90x+y=1530答案：x=17 y=36 (45) 93x-52y=-852 29x+y=464答案：x=16 y=45 (46) 93x+12y=8823 54x+y=4914答案：x=91 y=30 (47) 21x-63y=84 20x+y=1880答案：x=94 y=30 (48) 48x+93y=9756 38x-y=950答案：x=25 y=9275x-y=5475答案：x=73 y=48 (50) 83x+64y=9291 90x-y=3690答案：x=41 y=92 (51) 17x+62y=3216 75x-y=7350答案：x=98 y=25 (52) 77x+67y=2739 14x-y=364答案：x=26 y=11 (53) 20x-68y=-4596 14x-y=924答案：x=66 y=87 (54) 23x+87y=4110 83x-y=5727答案：x=69 y=29 (55) 22x-38y=804 86x+y=6708答案：x=78 y=24 (56) 20x-45y=-3520 56x+y=728答案：x=13 y=84 (57) 46x+37y=7085答案：x=76 y=97 (58) 17x+61y=4088 71x+y=5609答案：x=79 y=45 (59) 51x-61y=-1907 89x-y=2314答案：x=26 y=53 (60) 69x-98y=-2404 21x+y=1386答案：x=66 y=71 (61) 15x-41y=754 74x-y=6956答案：x=94 y=16 (62) 78x-55y=656 89x+y=5518答案：x=62 y=76 (63) 29x+21y=1633 31x-y=713答案：x=23 y=46 (64) 58x-28y=2724 35x+y=3080答案：x=88 y=85 (65) 28x-63y=-2254 88x-y=2024(66) 43x+50y=7064 85x+y=8330答案：x=98 y=57 (67) 58x-77y=1170 38x-y=2280答案：x=60 y=30 (68) 92x+83y=11586 43x+y=3010答案：x=70 y=62 (69) 99x+82y=6055 52x-y=1716答案：x=33 y=34 (70) 15x+26y=1729 94x+y=8554答案：x=91 y=14 (71) 64x+32y=3552 56x-y=2296答案：x=41 y=29 (72) 94x+66y=10524 84x-y=7812答案：x=93 y=27 (73) 65x-79y=-5815 89x+y=2314答案：x=26 y=9563x-y=1953答案：x=31 y=60 (75) 60x-44y=-352 33x-y=1452答案：x=44 y=68 (76) 79x-45y=510 14x-y=840答案：x=60 y=94 (77) 29x-35y=-218 59x-y=4897答案：x=83 y=75 (78) 33x-24y=1905 30x+y=2670答案：x=89 y=43 (79) 61x+94y=11800 93x+y=5952答案：x=64 y=84 (80) 61x+90y=5001 48x+y=2448答案：x=51 y=21 (81) 93x-19y=286x-y=1548答案：x=18 y=88 (82) 19x-96y=-5910答案：x=78 y=77 (83) 80x+74y=8088 96x-y=8640答案：x=90 y=12 (84) 53x-94y=1946 45x+y=2610答案：x=58 y=12 (85) 93x+12y=9117 28x-y=2492答案：x=89 y=70 (86) 66x-71y=-1673 99x-y=7821答案：x=79 y=97 (87) 43x-52y=-1742 76x+y=1976答案：x=26 y=55 (88) 70x+35y=8295 40x+y=2920答案：x=73 y=91 (89) 43x+82y=4757 11x+y=231答案：x=21 y=47 (90) 12x-19y=236 95x-y=7885(91) 51x+99y=8031 71x-y=2911答案：x=41 y=60 (92) 37x+74y=4403 69x-y=6003答案：x=87 y=16 (93) 46x+34y=4820 71x-y=5183答案：x=73 y=43 (94) 47x+98y=5861 55x-y=4565答案：x=83 y=20 (95) 30x-17y=239 28x+y=1064答案：x=38 y=53 (96) 55x-12y=4112 79x-y=7268答案：x=92 y=79 (97) 27x-24y=-450 67x-y=3886答案：x=58 y=84 (98) 97x+23y=8119 14x+y=966答案：x=69 y=6270x+y=6790答案：x=97 y=59 (100) 51x-97y=297 19x-y=1520答案：x=80 y=3911. |﹣|+﹣12. ﹣12+×﹣2 13.．14. 求x的值：9x2=121．15. 已知，求x y的值．16. 比较大小：﹣2，﹣（要求写过程说明）17.求x的值：（x+10）2=1618. ．19. 已知m＜n，求+的值；20.已知a＜0，求+的值．参考答案与试题解析一．解答题（共13小题）1．计算题：|﹣2|﹣（1+）0+．解答：解：原式=2﹣1+2，=3．2．计算题：﹣12009+4×（﹣3）2+（﹣6）÷（﹣2）解答：解：﹣12009+4×（﹣3）2+（﹣6）÷（﹣2），=﹣1+4×9+3，=38．3.4. ||﹣．原式=14﹣11+2=5；（2）原式==﹣1．点评：此题主要考查了实数的综合运算能力，是各地中考题中常见的计算题型．解决此类题目的关键是熟练掌握二次根式、绝对值等考点的运算．5．计算题：．考点：有理数的混合运算。

2024年中考物理一轮复习基础题组训练卷二(含答案)

2024年中考物理一轮复习基础题组训练卷选择题组在每小题给出的四个选项中，只有一项是符合题目要求的(每小题2分，共28分)。

1．科学家在物理领域的每次重大发现，都有力地推动了人类文明的进程。

某位科学家在历史上首先发现：地磁的南北极与地理的南北极并不完全重合，存在磁偏角。

该科学家是()A．焦耳B．奥斯特C．安培D．沈括2．在中小学爱国主义教育活动中，某学校组织师生观看电影《闪闪的红星》，影片中有歌词“小小竹排江中游，巍巍青山两岸走”，其中“青山两岸走”所选的参照物是()A．竹排B．江岸C．房屋D．青山3．小明同学设计并制作了一个“盲人水杯”，其工作原理如图所示。

杯中近杯口处A点是水位器的两个金属触点，当杯中的水位达到A位置时，水位器会发出音乐声，表示水已盛满。

杯口处的两个金属触点的作用相当于()A．导线B．开关C．用电器D．电源(第3题)(第4题)4．2023年7月7日，旅居韩国的大熊猫“爱宝”顺利产下一对雌性双胞胎幼崽，熊猫宝宝刚出生时体重仅有150 g左右。

请你根据图片信息，估测刚出生的熊猫的头部直径约为()A．2.5 mm B．2.5 cm C．5 cm D．10 cm 5．舞蹈诗剧《只此青绿》舞绘《千里江山图》，以翩跹舞姿勾勒出了如诗如画的山河图景，讲述了一段跨越古今的艺术传奇。

下列说法中正确的是()A．舞台下的观众听到的舞曲通过空气传播B．舞台下的观众主要通过音调判断出古琴的伴奏声C．节目画面和声音通过超声波传递给电视机D．电视机前的观众利用了光的折射看到节目的画面6．砖的制作工艺流传数千年，从晒制到烧制，从青砖到红砖，小小的砖块见证了人类迈向文明的历程，下列说法正确的是()A．晒制泥坯时，泥坯温度越高含有的热量越多B．高温烧制时，通过热传递的方式改变砖块的内能C．烧制红砖时，燃料燃烧越充分，其热值越大D．在质地均匀的砖上雕刻花纹，砖的密度变小7．中国空间站机械臂，是对人类手臂最真实的还原，可随时实现对空间站舱体表面的巡检，具有抓住、拉回、锁死等功能。

高考数学总复习提素能高效题组训练2-2

[命题报告·教师用书独具]1．(2013年郑州模拟)函数f (x )＝2x －1log 3x 的定义域为( )A ．(0，＋∞)B ．(1，＋∞)C ．(0,1)D ．(0,1)∪(1，＋∞)解析：由log 3 x ≠0得x >0且x ≠1，因此，函数f (x )＝2x －1log 3x 的定义域是(0,1)∪(1，＋∞)，选D.答案：D2．(2013年长沙模拟)下列函数中，值域是(0，＋∞)的是( ) A ．y ＝x 2－2x ＋1 B ．y ＝x ＋2x ＋1(x ∈(0，＋∞)) C ．y ＝1x 2＋2x ＋1(x ∈N )D ．y ＝1|x ＋1|解析：A 项值域为y ≥0，B 项值域为y ＞1，C 项中x ∈N ，故y 值不连续，只有D 项y >0正确．答案：D 3．函数y ＝2x －1的定义域是(－∞，1)∪[2,5)，则其值域是( ) A ．(－∞，0)∪⎝ ⎛⎦⎥⎤12，2B ．(－∞，2] C.⎝ ⎛⎭⎪⎫－∞，12∪[2，＋∞) D ．(0，＋∞)解析：∵x ∈(－∞，1)∪[2,5)，则x －1∈(－∞，0)∪[1,4)． ∴2x －1∈(－∞，0)∪⎝ ⎛⎦⎥⎤12，2.答案：A4．(2013年天津河西模拟)已知函数f (x )的定义域为R ，若存在常数m >0，对任意x ∈R ，有|f (x )|≤m |x |，则称f (x )为F 函数．给出下列函数：①f (x )＝x 2；②f (x )＝sin x ＋cos x ；③f (x )＝xx 2＋x ＋1；④f (x )是定义在R 上的奇函数，且满足对一切实数x 1，x 2均有|f (x 1)－f (x 2)|≤2|x 1－x 2|.其中是F 函数的序号为( )A ．②④B ．①③C ．③④D ．①②解析：据F 函数的定义可知，由于|f (x )|≤m |x |⇒|f (x )||x |≤m ，即只需函数|f (x )||x |存在最大值，函数即为F 函数．易知①②不符合条件；对于③，|f (x )||x |＝1x 2＋x ＋1＝1⎝ ⎛⎭⎪⎫x ＋122＋34≤43，为F 函数；对于④，据题意令x 1＝x ，x 2＝0，由于函数为奇函数，故有f (0)＝0，则有|f (x )－f (0)|≤2|x －0|⇔|f (x )|≤2|x |，故为F 函数．综上可知③④符合条件．答案：C 5．若函数f (x )＝1log 3(2x ＋c )的定义域为⎝ ⎛⎭⎪⎫12，1∪(1，＋∞)，则实数c 的值等于( )A ．1B ．－1C ．－2D ．－12解析：由2x ＋c >0且log 3(2x ＋c )≠0，得x >－c2且x ≠1－c 2.又f (x )的定义域为⎝ ⎛⎭⎪⎫12，1∪(1，＋∞)，∴1－c2＝1.∴c ＝－1. 答案：B 二、填空题6．(2013年东莞模拟)函数y ＝x －1x ＋1(x >0)的值域是________．解析：y ＝x －1x ＋1＝x ＋1－2x ＋1＝1－2x ＋1，由于x >0，所以x ＋1>1,0<2x ＋1<2，－2<－2x ＋1<0，于是－1<1－2x ＋1<1，故函数值域为(－1,1)．答案：(－1,1)7．(2013年石家庄模拟)函数y ＝log 2(x －x 2)的定义域为________．解析：由题意可知x －x 2>0，∴x 2－x <0，∴0<x <1，故函数y ＝log 2(x －x 2)的定义域为(0,1)．答案：(0,1)8．(2013年合肥模拟)若函数f (x )＝2x 2＋2ax －a －1的定义域为R ，则a 的取值范围为________．解析：函数f (x )的定义域为R ，所以2x 2＋2ax －a －1≥0对x ∈R 恒成立，即2x 2＋2ax －a ≥1，x 2＋2ax －a ≥0，恒成立，因此有Δ＝(2a )2＋4a ≤0，解得－1≤a ≤0. 答案：[－1,0]9．(2013年海口模拟)在实数的原有运算中，我们定义新运算“⊕”如下：当a ≥b 时，a ⊕b ＝a ；当a <b 时，a ⊕b ＝b 2.设函数f (x )＝(1⊕x )x －(2⊕x )，x ∈[－2,2]，则函数f (x )的值域为________．解析：由题意知f (x )＝⎩⎨⎧x －2，x ∈[－2，1]，x 3－2，x ∈(1，2]，当x ∈[－2,1]时，f (x )∈[－4，－1]；当x ∈(1,2]时，f (x )∈(－1,6]； ∴当x ∈[－2,2]时，f (x )∈[－4,6]．答案：[－4,6] 三、解答题10．已知f (x )是二次函数，若f (0)＝0，且f (x ＋1)＝f (x )＋x ＋1. (1)求函数f (x )的解析式； (2)求函数y ＝f (x 2－2)的值域．解析：(1)设f (x )＝ax 2＋bx ＋c (a ≠0)，又f (0)＝0，∴c ＝0，即f (x )＝ax 2＋bx . 又f (x ＋1)＝f (x )＋x ＋1.∴a (x ＋1)2＋b (x ＋1)＝ax 2＋bx ＋x ＋1. ∴(2a ＋b )x ＋a ＋b ＝(b ＋1)x ＋1， ∴⎩⎨⎧2a ＋b ＝b ＋1，a ＋b ＝1，解得⎩⎪⎨⎪⎧a ＝12，b ＝12.∴f (x )＝12x 2＋12x . (2)由(1)知y ＝f (x 2－2) ＝12(x 2－2)2＋12(x 2－2)＝12(x 4－3x 2＋2)＝12⎝ ⎛⎭⎪⎫x 2－322－18，当x 2＝32时，y 取最小值－18.∴函数y ＝f (x 2－2)的值域为⎣⎢⎡⎭⎪⎫－18，＋∞.11．已知函数f (x )＝lg(x 2－mx ＋1)． (1)若此函数的定义域为R ，求m 的范围； (2)若此函数的值域为R ，求m 的范围．解析：(1)由条件知x 2－mx ＋1>0对x ∈R 恒成立， ∴Δ＝m 2－4<0，即－2<m <2.(2)因为函数的值域为R ，结合图象可知g (x )＝x 2－mx ＋1与x 轴有交点，即满足Δ＝m 2－4≥0，即m ≥2或m ≤－2.12．(能力提升)已知函数f (x )＝x 2－4ax ＋2a ＋6(a ∈R )．(1)若函数的值域为[0，＋∞)，求a 的值；(2)若函数的值域为非负数，求函数g (a )＝2－a |a ＋3|的值域．解析：(1)∵函数的值域为[0，＋∞)， ∴Δ＝16a 2－4(2a ＋6)＝0，∴2a 2－a －3＝0，即a ＝－1或a ＝32.(2)∵对一切x ∈R 函数值均为非负， ∴Δ＝16a 2－4(2a ＋6)＝8(2a 2－a －3)≤0. ∴－1≤a ≤32.∴a ＋3>0，∴g (a )＝2－a |a ＋3|＝－a 2－3a ＋2 ＝－⎝ ⎛⎭⎪⎫a ＋322＋174⎝ ⎛⎭⎪⎫a ∈⎣⎢⎡⎦⎥⎤－1，32.∵二次函数g (a )在⎣⎢⎡⎦⎥⎤－1，32上单调递减，∴g (32)≤g (a )≤g (－1)．即－194≤g (a )≤4. ∴g (a )的值域为⎣⎢⎡⎦⎥⎤－194，4.[因材施教·学生备选练习]1．(2013年茂名模拟)函数y ＝x (x －1)－lg 1x 的定义域为( ) A ．{x |x >0} B ．{x |x ≥1} C ．{x |x ≥1或x <0}D ．{x |0<x ≤1}解析：要使函数有意义，则需⎩⎪⎨⎪⎧x (x －1)≥0，1x >0，解得x ≥1，所以函数的定义域为{x |x ≥1}．答案：B2．(2013年宝鸡模拟)已知函数g (x )＝x ＋1，h (x )＝1x ＋3，x ∈(－3，a ]，其中a 为常数且a >0，令函数f (x )＝g (x )·h (x )．(1)求函数f (x )的表达式，并求其定义域； (2)当a ＝14时，求函数f (x )的值域．解析：(1)∵f (x )＝g (x )·h (x )＝(x ＋1)1x ＋3＝x ＋1x ＋3∴f (x )＝x ＋1x ＋3，x ∈[0，a ]．(a >0)(2)函数f (x )的定义域为⎣⎢⎡⎦⎥⎤0，14，令x ＋1＝t ，则x ＝(t －1)2，t ∈⎣⎢⎡⎦⎥⎤1，32，f (x )＝F (t )＝tt 2－2t ＋4＝1t ＋4t －2. ∵t ＝4t 时，t ＝±2∉⎣⎢⎡⎦⎥⎤1，32，又t ∈⎣⎢⎡⎦⎥⎤1，32时，t ＋4t 单调递减，F (t )单调递增， ∴F (t )∈⎣⎢⎡⎦⎥⎤13，613.即函数f (x )的值域为⎣⎢⎡⎦⎥⎤13，613.。

九年级培优训练题组2

精锐教育网站：
5
精锐教育·教务管理部
中国领先的高端教育连锁集团 22．已知抛物线 y = x + ( 2n − 1) x + n − 1 （ n 为常数）．
2 2
（1）当该抛物线经过坐标原点，并且顶点在第四象限时，求出它所对应的函数关系式；（2）设 A 是（1）所确定的抛物线上位于 x 轴下方、且在对称轴左侧的一个动点，过点 A 作 x 轴的平行线，交抛物线于另一点 D ，再做 AB ⊥ x 轴于 B ， DC ⊥ x 轴于 C ． ①当 BC = 1 时，求矩形 ABCD 的周长； ②试问矩形 ABCD 的周长是否存在最大值？如果存在，请求出这个最大值，并指出此时 A 点的坐标；如果不存在，请说明理由．
k 的图像过直角三角形 AOB 斜边 AO 的中点 D ，与直角边 AB 交于 C 点．连结 OC ．若 x
．
y A D C O B x
△ AOC 的面积等于 3，则反比例函数的解析式为
10．如图，在△ ABC 中，∠ CAB = 70 ，在同一平面内，将△ ABC 绕点 A 旋转到△ AB′C ′ 得位置，使得 CC ′
o
∥ AB 。则∠ BAB′ =
°．
11．如图，将两张长为 8，宽为 2 的矩形纸条交叉，使重叠部分是一个菱形，容易知道当两张纸条垂直时，菱形的周长有最小值 8，那么菱形周长的最大值是．
精锐教育网站：
2
精锐教育·教务管理部
中国领先的高端教育连锁集团 12．如图，矩形 ABCD 中，由 8 个面积均为 1 的小正方形组成的 L 型模板如图放置，则矩 3 ；
B ． x3 − x = x 2 ；
C ． x3 ÷ x = x 2 ；

2025年中考物理题型专项突破训练单选、填空题组2

提分练本
6. [2023 淄博] 如图所示是“探究什么情况下磁可以生电”的实验装置。下列说法正确的是( D ) A. 闭合开关，导体ab 在磁场中上下运动会产生感应电流 B. 闭合开关，导体ab 左右运动过程中电能转化为机械能 C. 利用该实验原理可以制成电动机 D. 将电流计换成电源，可以研究通电导体在磁场中的受力情况
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10. 航空科技[2024 遂宁] 中国人民解放军海军山东舰是中国完全自主设计建造的第一艘航空母舰，当舰载机从航母上起飞后，航母所受的浮力将__变__小___(填“变大”“变小”或“不变”)。舰载机飞行时机翼上方空气的流速比机翼下方的流速大，于是机翼上方的空气压强 __小__于___ ( 填“大于”或“小于”)下方的空气压强，这个压强差就使飞机获得了升力。
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9. 新能源[2024 宿迁] 氢能是新能源利用的新潮流，加快氢能产业发展成为实现“碳达峰、碳中和”的重要举措。如图所示是市场上的某品牌氢能自行车，一次性充满0.0 2 kg 氢气， 2 h 能匀速骑行50 km，氢能自行车与骑行者的总质量为 8 4 kg，骑行时受到的阻力为总重的0.05 倍，氢气热值为 1.4×10 8 J/ kg。氢气完全燃烧产生的热量是 _2_.8_×__1_0_6_J，氢气的利用效率是__7_5_%__ 。 (g 取10 N/ kg)
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8. 新科技[2024 广州] 广东生产的无人驾驶电动垂直起降航空器首飞成功，彰显了我国科技在城市空中交通领域的领先地位。航空器可用于高空摄影、旅游观光等，远处的物体通过摄像头成倒立、缩小的 __实__(填“实”或“虚”)像。在摄像头远离物体的过程中，像的大小将变___小___ 。
提分练本

高三第二轮复习立体几何客观题组专题训练2

高三第二轮复习立体几何客观题组专题训练2一．选择题1．三条平行线所确定的平面的个数是A ．三个B ．两个C ．一个D ．一个或三个 2．空间交于一点的四条直线最多能够确定的平面的个数是 A ．4 B ．5 C ．6 D ．73．四条线段顺次首尾相接，它们所在的直线最多能够确定的平面的条数是 A ．4 B ．3 C ．2 D ．14．直线l 1∥l 2,l 1上取3点，l 2上取2点，由这五个点能确定的平面的个数是 A ．1 B ．3 C ．6 D ．95．空间三个平面两两相交，则它的交线的条数是 A ．1 B ．2 C ．3 D ．1或36．分别和两条异面直线平行的两条直线的位置关系是A ．一定平行B ．一定相交C ．一定异面D ．相交或异面7．正方体ABCD －A 1B 1C 1D 1中，异面直线CD 1和BC 1所成角的大小是 A ．45° B ．60° C ．90° D ．120°8．直线l 1∥l 2，a,b 与直线l 1和l 2都垂直，则a,b 的关系是A ．平行B ．相交C ．异面D ．平行，相交，异面都有可能 9．直线m,n 与异面直线a,b 相交于不同的四点，则m,n 的位置关系是 A ．平行 B ．相交 C ．垂直 D ．无公共点10．空间四边形ABCD 中，AC ⊥BD ，E ，F ，G ，H 分别是AB ，BC ，CD ，DA 的中点，则四边形EFGH 是A ．菱形B ．矩形C ．梯形D ．正方形11．a,b 是异面直线，a ⊂平面α，b ⊂平面β，α∩β＝c,则直线c A ．同时与a,b 相交 B ．至少和a,b 中的一条相交C ．至多和a,b 中的一条相交D ．与a,b 中的一条相交，一条平行12．正方体ABCD －A 1B 1C 1D 1中，表面的对角线与AD 1成60°的直线的条数有 A ．4 B ．6 C ．8 D ．1013．a,b 是异面直线，a ⊥b ，c 与a 成30°角，则c 与b 所成角的范畴是 A ．[60°,90°] B ．[30°,90°] C ．[60°,120°] D ．[30°,120°]14．空间四边形ABCD 的各边与两条对角线的长差不多上1，点P 在边AB 上移动，点Q 在CD 上移动，则点P 和Q 的最短距离是23432221．．．．D C B A 15．正方体ABCD －A 1B 1C 1D 1中，E ，F 分别是AB ，BB 1的中点，则A 1E 与C 1F 所成角的余弦值是521522221D C B A ．．． 16．直线a 是平面α的斜线，b ⊂α,当a 与b 成60°的角，且b 与a 在α内的射影成45°时a 与α所成的角为A ．60°B ．45°C ．90°D ．135° 17．a,b 是两条异面直线，下列结论正确的是A ．过不在a,b 上的任一点，可作一个平面与a,b 都平行B ．过不在a,b 上的任一点，可作一条直线与a,b 都相交C ．过不在a,b 上的任一点，可作一条直线与a,b 都平行D ．过a 能够同时只能够作一个平面与b 平行18．直角三角形ABC 的斜边BC 在平面α内，顶点A 在平面α外，则ΔABC 的两条直角边在平面α内的射影与斜边所组成的图形只能是 A ．一条线段 B ．一个锐角三角形C ．一个钝角三角形D ．一条线段或一个钝角三角形 19．与空间四边形ABCD 四个顶点距离相等的平面的个数有 A ．1 B ．5 C ．6 D ．720．两条异面直线在同一平面内的射影是 A ．两条相交直线 B ．两条平行直线C ．一条直线及直线外一点D ．以上三种情形都有可能21．在矩形ABCD 中，AB ＝3，BC ＝4，PA ⊥平面ABCD 且PA ＝1，则P 到对角线DB 的距离是129515175132921．．．．D C B A 22．已知直线a ∥平面α，a 与平面α相距4，平面α内直线b 与c 相距6，且a ∥b,同时相距5，则a 与c 相距565975975　或．．或．．D C B A23．平面α的斜线与α所成的角是30°，则它和α内所有只是斜足的直线所成的角中，最大的角是 A ．30° B ．90° C ．150° D ．180°24．P 点在ΔABC 所在的平面外，O 点是P 点在平面ABC 内的射影，PA ，PB ，PC ，两两相互垂直，则O 是ΔABC 的A ．重心B ．内心C ．垂心D ．外心25．四面体ABCD 中，AB ＝AC ＝AD ，则A 在平面BCD 上的射影是ΔBCD 的 A ．重心 B ．内心 C ．垂心 D ．外心26．在ΔABC 中，AB ＝AC ＝5，BC ＝6，PA ⊥平面ABC ，PA ＝8，则P 到BC 的距离是5453525．．．．D C B A27．P 点在ΔABC 所在的平面外，O 点是P 点在平面ABC 内的射影，P 到ΔABC 三边的距离相等，且O 在ΔABC 内，则O 是ΔABC 的A ．重心B ．内心C ．垂心D ．外心28．P 为平行四边形ABCD 所在平面外的一点，且P 到四边形ABCD 的四条边的距离相等，则四边形ABCD 是A ．正方形B ．菱形C ．矩形D ．一样的平行四边形 29．与两相交平面的交线平行的直线和这两个平面的位置关系是 A ．都平行 B ．都相交C ．在两个平面内D ．至少和其中一个平行 30．在直角坐标系中，设A （3，2）B （-2，-3），沿y 轴把直角坐标系平面折成120°的二面角后，AB 的长度是11232246．．．．D C B A31．一个山坡面与水平面成60°的二面角，坡脚的水平线为AB ，甲沿山坡自P 朝垂直于AB 的方向走30米，同时乙沿水平面自Q 朝垂直于AB 的方向走30米，P ，Q 差不多上AB 上的点，若PQ ＝10米，则这时两人之间的距离是米．米．米．　米　．19103301010720D C B A32．二面角α—a —β的平面角为120°，在面α内，AB ⊥a 于B ，AB=2，在β内CD ⊥a 于D ，CD ＝3，BD ＝1，M 是棱a 上的一个动点，则AM ＋CM 的最小值是62262252．．．．D C B A33．ABCD 是正方形，以BD 为棱把它折成直二面角A －BD －C ，E 是CD 的中点，则∠AED 的大小为A ．45°B ．30°C ．60°D ．90°34．P 是ΔABC 外的一点，PA ，PB ，PC 两两相互垂直，PA ＝1，PB ＝2，PC ＝3，则ΔABC 的面积为4496112729．．．．D C B A 35．在ΔABC 中，AB ＝9，AC ＝15，∠BAC ＝120°，P 是ΔABC 所在平面外的一点，P 到三点间的距离差不多上14，则P 到ΔABC 所在平面的距离是 A ．7 B ．9 C ．11 D1336．过正方形ABCD 的顶点A 作PA ⊥平面ABCD ，若PA=AB ，则平面APB 与平面CDP 所成二面角的度数是A ．90°B 。

化学易错选择题组训练

化学易错选择题组训练（二）1．下列叙述中不正确的是：A ．蔗糖、淀粉、油脂等都可以发生水解反应B ．纤维素是一种多糖，其相对分子质量是葡萄糖的n 倍C ．蔗糖水解后需加入NaOH 中和再做银镜反应，否则会使实验失败D 、碘又叫智力元素，缺碘会患大脖子病2．在某稀溶液中含1 mol KNO 3和4mol H 2SO 4，向其中加入1.5mol Cu 粉，充分反应后产生的气体在标准状况下的体积为A. 11.2LB. 22.4 LC. 33.6LD. 22.4L ～33.6L 之间3．青石棉（cricidolite ）是世界卫生组织确认的一种致癌物质，是《鹿特丹公约》中受限制的46种化学品之一，青石棉的化学式为：Na 2Fe 5Si 8O 22(OH)2，青石棉用稀硝酸溶液处理时，还原产物只有NO ，下列说法正确的是A 、青石棉是一种易燃品且易溶于水B 、青石棉的化学组成用氧化物的形式可表示为：Na 2O ·FeO ·2Fe 2O 3·8SiO 2·H 2OC 、1mol Na 2Fe 5Si 8O 22(OH)2与足量的硝酸作用，至少需消耗6L3mol/LHNO 3溶液D 、1mol Na 2Fe 5Si 8O 22(OH)2与足量氢氟酸作用，至少需消耗5.5L2mol/LHF 溶液4．已知：CH 4(g)+2O 2(g)==CO 2(g)+2H 2O(1)△H=―Q1 KJ/mol 2H 2(g)+O 2(g)==2H 2O(g) △H=―Q 2 KJ/mol2H 2(g)+O 2(g)==2H 2O(1) △H = ―Q 3KJ/mol 常温下，取体积比为4:1的甲烷和氢气的混合气体11.2L （已折合成标准状况），经完全燃烧后恢复至常温，则放出的热量为多少KJA ．0.4Q 1+0.1Q 2B ． 0.4Q 1+0.05Q 2C ． 0.4Q 1+0.1Q 3D ．0.4Q 1+0.05Q 35．将一定质量的镁和铝混合物投入200 mL 硫酸中，固体全部溶解后，向所得溶液中加入NaOH 溶液，生成沉淀的物质的量n 与加入NaOH 溶液的体积V 的变化如右图所示。

人教版新高考英语二轮复习习题训练--语篇填空题组练(二)

题组练(二)Test1(2021·山东济南高三适应性考试)Robotics is a complex field. But brothers Sanjay and Arvind Seshan found an early passion for it. In 2014, they started a mission to make 1. easier for others to learn robotics by creating a website, 2. they teach people to code.The story started when they were looking for materials for learning how to programme, and they 3.(realise) that there was not really anything good online. Then they came up 4.an idea of creating a brief set of lessons from which kids and adults could learn 5.(easy) to programme.The website started off with basic lessons on robotics and coding. But now the lessons can support the kids who 6.(involve) with robotics for years and who want to learn something new. The brothers thought that one of the reasons why kids liked it 7.(be) that they were being taught by other kids.The brothers understand that robotics takes 8.(patient) and lots of time. They created a robot 9.(call) Pix3l Plott3r that would print people’s pictures. It took them two years to get a fully working model, and they made six or more versions. The Seshan brothers’ advice is never 10. (give) up if something does not work the first time and to try different ways of solving the problem.Test2(2021·宁夏银川高三考前适应性训练)Newly-developed robotic arms 1.(show) on Tuesday in Anhui Province. The robotic arms, developed by researchers at the University of Science and Technology of China (USTC), have advanced grasping abilities compared 2. those on the market. They can complete flexible movements including 3.(pick) up pieces of paper, bowls, soft tofu and cakes and placing them in certain places accurately. With the arms, robots can grasp and place different objects 4. (steady) after judging the shape and size of the item.The current robotic arms in China can hardly conduct such complex movements, 5.imported robotic arms with such functions are very expensive. “The new robotic arms cost no more than 1,000 yuan,” said Chen Xiaoping, 6.(direct) of the Robotics Laboratory at USTC, adding that this gives them an advantage for much 7.(wide) application.According to Chen, the arms 8.(be) first installed on 9. home service robot developed by USTC, and are expected 10.(use) in more fields such as the elderly care services and logistics in the future.Test3Bike riding is a great way 1.(get) exercise and fresh air. But 2. you rush out and start biking, there is an important thing you need to consider—safety.Always wear a helmet when riding a bike, no matter where you are or how short the ride is. It can protect your brain from 3.(get) hurt in a bike accident. Many bike accidents mean brain damage for someone 4. does not wear one while riding. To protect against brain injury, make sure that the belts are fastened. What you wear when riding a bike 5.(be) also very important for safety. Bright-coloured clothes will help you be 6.(clear) visible on the road.Besides, you have to choose good shoes. You should never ride barefoot!Stop at all stop signs and check for traffic in both directions when leaving 7.driveway.Never wear earphones while biking. It’s 8.(importance) to hear everyone else on the road.One of the 9.(good) ways for parents to help kids learn safe bike riding is to set an example by following the 10.(rule) of the road themselves.Test4(2021·河北唐山高三第二次模拟)For much of history, reading was a fairly noisy activity. Today, however, the majority of us bottle the words in our heads as if 1.(sit) in a library.Recent studies provide enough evidence 2. the ancient art of reading aloud has a number of benefits, from helping improve our memories 3. strengthening emotional bonds between people.According to research on the impact of reading on memory, people consistently remember words and texts 4.(well) if reading them aloud than if reading them silently. This phenomenon has been named the “production effect”, which means that producing 5.(write) words—namely, reading them out loud—improves our memory of them. Even just silently mouthing the words makes 6. (they) more memorable.One reason why people remember the spoken words better is that it gives us 7.additional basis for memory. We are 8.(general) better at recalling events that require active involvement. For instance, producing a word in 9.(respond) to a question makes it easier to remember.In time when our interactions with others and the large amount of information we take in 10.(be) all too transient(转瞬即逝的), perhaps it is worth making a bit more time for reading out loud.题组练(二)Test1【语篇导读】本文是一篇记叙文。

重难点强化小专题(五) 三位数乘两位数的竖式计算及估算题组训练(二)

题组训练(二)一、填一填，下面各数可以近似地看作多少？一篇文章有592个字。

()小强一分钟能打117个字。

()希望小学有1328人。

()爸爸的工资是每月2863元。

()二、()里最大能填几？()×300<1000()×700<29005000>600×()()×900<6000800×()<39004300>500×()三、竖式计算我最棒。

216×28621×50512×35 409×52四、羽绒服原价240元，现价每件150元；羊绒大衣原价每件380元，现价每件250元。

1．精品店去年冬季购回20件羽绒服，每件进价160元，购回17件羊绒大衣，每件进价260元，购进这些衣服一共花了多少钱？2．精品店在卖出15件羽绒服和12件羊绒大衣后，开始降价销售，商品全部售出后，商店是赚钱还是亏损？五、有一次足球比赛就要开始了，亮亮买了票去看球。

他的座位票是30看台的18排32座，是这个体育场的最后一个看台的最后一个座位。

如果每个看台座位数相同，你能估计出这个体育场有多少个座位吗？口38×18≈22×27≈697×4≈499×51≈59×51≈算56×20＝19×30＝24×10＝40×20＝25×20＝题组训练(二)一、60010010003000二、348648三、6048310501792021268四、1.20×160＝3200(元)17×260＝4420(元)3200＋4420＝7620(元)答：购进这些衣服一共花了7620元。

2.240×15＋380×12＝8160(元)150×(20－15)＋250×(17－12)＝2000(元)8160＋2000＝10160(元)10160元＞7620元答：商店赚钱了。

题组训练二