【人教版】2019届高三英语一轮复习练习案 必修三 Unit 1 含答案

必修三Unit 1

[基础回顾]

Ⅰ.单句语法填空(导学号02516093)

1．Please accept our apology(apologize) for the inconvenience this matter has given you.

2．He hurt me deeply and begged me to forgive him for his actions.

3．You must remind him to take(take) his medicine，in case he forgets.

4．In my hometown，there is a tradition that we will hold a celebration(celebrate) party when we enter a higher school.

5．I find that doing physical exercise a couple of times a week makes me feel more energetic(energy)．

6．If you want to catch that train you'd better set off for the station immediately.

7．No official permission(permit) has been given for the event to take place.

8．After taking some photos，they stopped at the top of the hill to admire(admire) the scenery.

9．He tricked her into marrying him by pretending that he was rich.

10．Miss Yang promised to attend my birthday party，but she hasn't turned up so far.

Ⅱ.单句改错(每句一错)(导学号02516094)

1．Jane's sister played a trick to her—she put orange juice in her shampoo bottle！to→on 2．Either you or the headmaster are to hand out the prizes to those gifted students at the meeting.are→is

3．This story reminds me my experience when I was a middle school student.my前加of 4．We're looking forward to hear from you as soon as possible.hear→hearing

5．Obvious，students are terrible at adjusting their sleep cycles to their daily schedule. Obvious→Obviously

Ⅲ.佳句写作(导学号02516095)

1．很明显，她很受学生们的欢迎.(It is obvious...)

答案：It is obvious that she is popular with students.

2．我会守信，并且我会将一切告诉他的.(keep one's word)

答案：I'll keep my word and tell him everything.

3．虽然因特网很有帮助，但你也不能上网太多.(while)

答案：While the Internet is of great help，you can't surf it too much.

4．这种小车结果证明是不可靠的(unreliable).(turn out)

答案：The kind of car turns out to be unreliable.

5．英语很难在短时间内学好.(be＋adj.＋to do)

答案：English is very difficult to learn well in a short time.

[技能提升]

Ⅰ.阅读理解(导学号02516096)

Thanksgiving is an important festival in North America.We interviewed several students from the US and Canada.Here is what they have told us about their Thanksgiving experiences.

Josie from New York，USA

“In America，Thanksgiving is celebrated every year at the end of November.It is to remember the first group of people from Europe to live in America.When they first arrived，they found the environment strange.But they learned to survive after some native American friends showed them how to grow and find food.Thanksgiving is meant to be a traditional celebration.”

Todd from California，USA

“Thanksgiving is the first day of Christmas shopping.That means we have four weeks to buy Christmas presents for our families and friends.For me and my friends，the most important part of the festival is the big football game on TV.The match is watched by millions of people all over America.Thanksgiving is seen as an exciting day for football！”

Ian from Saskatoon，Canada

“In Canada，Thanksgiving is held on the second Monday in October.On the Sunday before Thanksgiving Day，many people go to church.Thanks are given for all the good things that happened to them during the year.I always give thanks for the nice big turkey I'm going to have at the family dinner! Like all festivals，Thanksgiving is about food！”

Katie from Maritimes，Canada

“On Thanksgiving Day，we have dinner with all our cousins，aunts and uncles.It is always very busy.Sometimes we have two Thanksgiving dinners because we go to both our grandparents' houses.The dinner is usually attended by more than twenty people at each house! My mother and my aunts do all the cooking but the washing-up is done by me and my cousins.And that's not an easy job! But I don't mind because Thanksgiving is meant to be a time to give thanks.”

[语篇解读]本文是一篇应用文，主要讲的是美国和加拿大的一些学生在感恩节的不同经历.

1．People in the USA and Canada________.

A．have the same opinion of Thanksgiving

B．have different opinions of Thanksgiving

C．feel that Thanksgiving is about food

D．have no interest in Thanksgiving

解析：B[推理判断题.从所采访的四个学生的内容可知，美国人和加拿大人对感恩节持不同的观点和看法，所以答案选B项.]

2．When is Thanksgiving celebrated every year in Canada?

A．On the second Monday in October.

B．On the second Monday in November.

C．At the end of October.

D．At the end of November.

解析：A[细节理解题.从第三个采访“Ian from Saskatoon，Canada”中的“In Canada，Thanksgiving is held on the second Monday in October.”可知，答案为A.]

3．Where does the person who thinks that Thanksgiving is a traditional celebration come from?

A．New York.B．California.

C．Saskatoon D．Maritimes.

解析：A[细节理解题.从第一个采访“Josie from New York，USA”中的“Thanksgiving is meant to be a traditional celebration.”可知选A.]

4．What is the main idea of this passage?

A．Students learn to give thanks on Thanksgiving.

B．Many students like spending Thanksgiving at home.

C．Students have different experiences on Thanksgiving.

D．Thanksgiving is an important festival in North America.

解析：C[主旨大意题.本文主要讲的是美国和加拿大的一些学生在感恩节不同的经历，所以选C项.]

Ⅱ.阅读填句(七选五)(导学号02516097)

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.

Fun Halloween Activities for a Family

Halloween is a special time for families.__1__It is also a great opportunity for adults to develop the relationship with their children.Here are a few Halloween activities for the whole family.

·Prepare some mysterious gifts for your neighbors.

Halloween is a festival with pranks (恶作剧)when you can quickly get people in the spirit of the holiday.__2__When I was a child，my parents prepared a full bag of various treats and goodies and sent them to our neighbors.

·__3__

Change any room of your house into a dressing room and let your children perform an improvised(即兴的) show with their creative and beautiful costumes.Don't forget to capture those fun moments with a camera.

·Go to pumpkin farmland.

4__Before the adventure，set rules with your children like no going out of your sight and no fights.Most probably your kids will be curious to learn interesting facts about how to grow and choose pumpkins.

When you need a pumpkin for a pie you should pay attention to the texture and taste，but if you choose a pumpkin for carving，pay attention to its size，shape and ripeness.Always pick pumpkins with dry stems (茎)．__5__Take plenty of photos and have fun!

A．Teach your kids some simple rules.

B．Arrange a Halloween fashion show.

C．This can be another way to celebrate Halloween.

D．Change your house into a haunted (闹鬼的)house.

E．Just make sure they are harmless to anyone's health.

F．It's all about unique family traditions，fun and interesting.

G．Get your children involved in planting pumpkin seeds and making tasty desserts.

[语篇解读]本文是说明文，讲述了一个家庭如何过万圣节，并享受其中的乐趣.

1．F[根据空前Halloween is a special time for families.及空后It is also a great opportunity for adults to develop the relationship with their children.可知，这里是对万圣节的一种解释，故选F.]

2．E[根据空前的Halloween is a festival with pranks(恶作剧)可知，确保万圣节的恶作剧不要对他人的健康造成伤害，故选E.]

3．B[根据此段Change any room of your house into a dressing room and let your children perform an improvised(即兴的) show with their creative and beautiful costumes.可知，此处提到万圣节可以安排一个时装表演，故选B.]

4．C[根据小标题去南瓜地可知，这是庆祝万圣节的另外一种方式，故选C.]

5．A[根据空前的关键词pay attention to及choose可知，这里提到教给孩子一些选南瓜的技巧，故选A.]

Ⅲ.语法填空(导学号02516098)

(2018·山西长冶一中、沂州一中、临汾一中、康杰中学、晋城一中联考)My husband and I were paying a visit 1.________my parents in Tucson.We went to a fast-food restaurant for dinner together.My husband went to the counter 2.________(order)dishes and I stood with my parents.

My dad is 90 years old.He can hardly see very well and walks with a stick.I was scanning the

restaurant,3.________(wait) to sit at the first table that was 4.________(convenient)than others.A woman who was sitting with her son made eye contact with me and asked me to come to her.With a 5.________(puzzle)look on my face.I pointed to myself and said，“Me？”She 6.________(nod)and said，“Yes，you.”I walked to the table and she said，“Bring your family here.I can finish eating at the counter.My son is in 7.________hurry to leave anyway.”My eyes 8.________(fill) with tears as she wiped down the table and guided my dad to the seat.

I always believe that there are 9.________(nature)kind people in this world.This woman has set a good example to her son,10.________is a really lucky guy.

答案：

1．to 2.to order 3.waiting 4.more convenient 5.puzzled 6.nodded7.a8.were filled9.naturally10.who

2019届高三英语12月调研考试试题

2018～2019学年度第一学期高三12月份调研卷 英语 考试时间120分钟，满分150分。仅在答题卷上作答。 第一部分听力（共20题，每小题1.5分，共30分） 第一节（共5小题；每小题1.5分，满分7.5分） 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的指定位置处。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. When will the meeting begin? A. At 10:30. B. At 10:50. C. At 10:45. 2. What does the woman mean? A. The homework can’t be due in two days. B. She hasn’t finished her homework yet. C. She doesn’t expect it to come so soon. 3. Where does the conversation probably take place? A. On the street. B. At a hotel. C. At a shop. 4. What does the woman suggest? A. Cooking at home. B. Eating out at McDonald’s. C. Taking McDonald’s home. 5. What is the woman’s attitude? A. She agrees with the man. B. She doesn’t ag ree with the man. C. She doesn’t know what to do. 第二节(共15小题，每小题l．5分，满分22．5分) 听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在答题卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后．各小题将给出5秒钟的作答时问。每段对话或独白读两遍。听第6段材料，回答第6至8题。

人教版新课标高中数学必修四 全册教案

按住Ctrl 键单击鼠标打开教学视频动画全册播放 1.1．1 任意角 教学目标 （一） 知识与技能目标 理解任意角的概念(包括正角、负角、零角) 与区间角的概念. （二） 过程与能力目标 会建立直角坐标系讨论任意角,能判断象限角,会书写终边相同角的集合；掌握区间角的集合的书写． （三） 情感与态度目标 1． 提高学生的推理能力； 2．培养学生应用意识． 教学重点 任意角概念的理解；区间角的集合的书写． 教学难点 终边相同角的集合的表示；区间角的集合的书写． 教学过程 一、引入： 1．回顾角的定义 ①角的第一种定义是有公共端点的两条射线组成的图形叫做角. ②角的第二种定义是角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． 二、新课： 1．角的有关概念： ①角的定义： 角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． ②角的名称： ③角的分类： ④注意： ⑴在不引起混淆的情况下，“角α ”或“∠α ”可以简化成“α ”； ⑵零角的终边与始边重合，如果α是零角α =0°； ⑶角的概念经过推广后，已包括正角、负角和零角． ⑤练习：请说出角α、β、γ各是多少度? 2．象限角的概念： ①定义：若将角顶点与原点重合，角的始边与x 轴的非负半轴重合，那么角的终边(端点除外)在第几象限，我们就说这个角是第几象限角． 例1．如图⑴⑵中的角分别属于第几象限角？ 正角：按逆时针方向旋转形成的角 零角：射线没有任何旋转形成的角 负角：按顺时针方向旋转形成的角 始边 终边 顶点 A O B

例2．在直角坐标系中，作出下列各角，并指出它们是第几象限的角． ⑴ 60°； ⑵ 120°； ⑶ 240°； ⑷ 300°； ⑸ 420°； ⑹ 480°； 答：分别为1、2、3、4、1、2象限角． 3．探究：教材P3面 终边相同的角的表示： 所有与角α终边相同的角，连同α在内，可构成一个集合S ＝{ β | β = α + k ·360 ° ， k ∈Z}，即任一与角α终边相同的角，都可以表示成角α与整个周角的和． 注意： ⑴ k ∈Z ⑵ α是任一角； ⑶ 终边相同的角不一定相等，但相等的角终边一定相同．终边相同的角有无限个，它们相差 360°的整数倍； ⑷ 角α + k ·720 °与角α终边相同，但不能表示与角α终边相同的所有角． 例3．在0°到360°范围内，找出与下列各角终边相等的角，并判断它们是第几象限角． ⑴－120°；⑵640 °；⑶－950°12＇． 答：⑴240°,第三象限角；⑵280°,第四象限角；⑶129°48＇,第二象限角； 例4．写出终边在y 轴上的角的集合(用0°到360°的角表示) ． 解:{α | α = 90°+ n ·180°,n ∈Z}． 例5．写出终边在x y =上的角的集合S,并把S 中适合不等式－360°≤β＜720°的元素β写出来． 4．课堂小结 ①角的定义； ②角的分类： ③象限角； ④终边相同的角的表示法． 5．课后作业： ①阅读教材P 2-P 5； ②教材P 5练习第1-5题； ③教材P .9习题1.1第1、2、3题 思考题：已知α角是第三象限角，则2α，2 α 各是第几象限角？ 解：α 角属于第三象限， 正角：按逆时针方向旋转形成的角 零角：射线没有任何旋转形成的角 负角：按顺时针方向旋转形成的角

人教版高中化学选修4第一章测试题(经典含解析)

人教版选修4第一章《化学反应与能量变化》测试题（A卷） （45分钟，100分） 一、单项选择题（每小题4分，共60分） 1．下列措施不能达到节能减排目的的是（） A．利用太阳能制氢燃料B．用家用汽车代替公交车 C．利用潮汐能发电D．用节能灯代替白炽灯 2. 未来氢气将作为新能源的优点的是（） ①燃烧时发生氧化反应②充分燃烧的产物不污染环境 ③氢气是一种再生能源④燃烧时放出大量热量 A. ①②③ B. ①②④ C. ①③④ D. ②③④ 3．下列变化过程，属于放热反应的是（） ①液态水变成水蒸气②酸碱中和反应③浓H2SO4稀释 ④固体NaOH溶于水⑤ H2在Cl2中燃烧⑥弱酸电离 A、②③④⑤ B、②③④ C、②⑤ D、①③⑤ 4．下列对化学反应的认识错误的是（） A．一定有化学键的变化B．一定会产生新的物质 C．一定有物质状态的变化D．一定伴随着能量的变化 5．25℃、101 kPa下，2g氢气燃烧生成液态水，放出285.8kJ热量，表示该反应的热化学方程式正确的是（） A．2H2(g)+O2(g) == 2H2O(1) △H＝―285.8kJ／mol B．2H2(g)+ O2(g) == 2H2O(1) △H＝+571.6 kJ／mol C．2H2(g)+O2(g) == 2H2O(g) △H＝―571.6 kJ／mol D．H2(g)+1/2O2(g) == H2O(1) △H＝―285.8kJ／mol 6．热化学方程式C(s)＋H2O(g) ==CO(g)＋H2(g)；△H ＝+131.3kJ/mol表示（）A．碳和水反应吸收131.3kJ能量 B．1mol碳和1mol水反应生成一氧化碳和氢气，并吸收131.3kJ热量 C．1mol固态碳和1mol水蒸气反应生成一氧化碳气体和氢气，并吸热131.3kJ D．1个固态碳原子和1分子水蒸气反应吸热131.1kJ 7．已知25℃、101kPa条件下： 4Al (s) + 3O2 (g) == 2Al2O3 (s) △H = -2834.9 kJ·mol-1 4Al (s) +2O3 (g) ==2Al2O3 (s) △H = -3119.91 kJ·mol-1 由此得出的结论正确的是（） A．等质量的O2比O3能量低，由O2变O3为吸热反应 B．等质量的O2比O3能量低，由O2变O3为放热反应

浙江省临海市2019届高三英语模拟测试(含答案)

浙江省临海市2019届高三英语模拟测试 第二部分阅读理解（共两节，满分35分） 第一节（共10小题；每小题2.5分，满分25分） 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 A Basketball Statistician Help Wanted The Athletic Department is looking for students to help assist staff during the Fall 2016, Winter 2016-17 and Spring 2017 semesters. Students in this position will be keeping live statistics during basketball games. Students must meet all of the following requirements: ●Good computer skills ●Available evenings and weekends ●Knowing basketball rules and statistics Students interested in working for the Athletic Department should contact the Athletic Coordinator at their respective(各自的) campuses. ●TP/SS Athletic Coordinator, Michael Simone,240-567-1308 ●Rockville Athletic Coordinator, Jorge Zuniga,240-567-7589 ●Springfield Athletic coordinator, Gary Miller,240-567-2273 ●Germantown Athletic Coordinator, GavriChavan, 240-567-6915 1.When will the job start? A . In May 2016. B. In May 2017. C. In September 2016. D. In September 2017. 2.Who is more likely to get job? A. Sam,English major ,member of the college basketball team. B. Judy,IT staff with night classes,children’s basketball team coach. C. Ted,computer major, basketball fan,free on evenings and weekends. D. Molly,part_time programmer,high school basketball player ,new mother. 3.Whom should you contact if you want to apply for the job in Rockville? A. Michael B. Jorge C. Gauri D. Gary B

人教版高中英语必修五电子课本

按住Ctrl键单击鼠标打开配套教学视频名师讲课播放 必修5 Unit 1 JOHH SHOW DEFEATS “KING CHOLERA” John Snow was a famous doctor in London - so expert, indeed, that he attend ed Queen Victoria as her personal physician. But he became inspired when he tho ught about helping ordinary people exposed to cholera. This was the deadly dise ase of its day. Neither its cause nor its cure was understood. So many thousand s of terrified people died every time there was an outbreak. John Snow wanted t o face the challenge and solve this problem. He knew that cholera would never b e controlled until its cause was found. He became interested in two theories that possibly explained how cholera ki lled people. The first suggested that cholera multiplied in the air. A cloud of dangerous gas floated around until it found its victims. The second suggested that people absorbed this disease into their bodies with their meals. From the stomach the disease quickly attacked the body and soon the affected person die d. John Snow suspected that the second theory was correct but he needed eviden ce. So when another outbreak hit London in 1854, he was ready to begin his enqu iry. As the disease spread quickly through poor neighbourhoods, he began to gat her information. In two particular streets, the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. First he marked on a map the exact places where all the dead people had liv ed. This gave him a valuable clue about the cause of the disease. Many of the d eaths were near the water pump in Broad Street (especially numbers 16, 37, 38 a nd 40). He also noticed that some houses (such as 20 and 21 Broad Street and 8 and 9 Cambridge Street) had had no deaths. He had not foreseen this, so he made further investigations. He discovered that these people worked in the pub at 7 Cambridge Street. They had been given free beer and so had not drunk the water from the pump. It seemed that the water was to blame. Next, John Snow looked into the source of the water for these two streets. He found that it came from the river polluted by the dirty water from London. H e immediately told the astonished people in Broad Street to remove the handle f rom the pump so that it could not be used. Soon afterwards the disease slowed d own. He had shown that cholera was spread by germs and not in a cloud of gas. In another part of London, he found supporting evidence from two other deat hs that were linked to the Broad Street outbreak. A woman, who had moved away f rom Broad Street, liked the water from the pump so much that she had it deliver ed to her house every day. Both she and her daughter died of cholera after drin king the water. With this extra evidence John Snow was able to announce with ce rtainty that polluted water carried the virus.

人教版高中化学选修4综合测试题

人教版高中化学选修4综合测试题（四） 考试用时100分钟。满分为150分。 第Ⅰ卷（共70分） 一、 选择题（本题包括15小题，每小题2分，共30分。每小题只有一个选项符合题意） 1、已知反应X+Y= M+N 为放热反应,，对该反应的下列说法中正确的 （ ） A 、X 的能量一定高于M B 、Y 的能量一定高于N C 、X 和Y 的总能量一定高于M 和N 的总能量 D 、因该反应为放热反应,故不必加热就可发生 2、在pH=1的无色溶液中，下列离子能大量共存的是 （ ） A ．NH 4+、Ba 2+、NO 3—、CO 32— B ．Fe 2+、OH —、SO 42—、MnO 4— C ．K +、Mg 2+、NO 3－ 、SO 42— D ．Na +、Fe 3+、Cl —、AlO 2— 3、在密闭容器里，A 与B 反应生成C ，其反应速率分别用A v 、B v 、C v 表示，已知2B v =3A v 、3C v =2B v ，则此反应可表示为 （ ） A 、2A+3B=2C B 、A+3B=2C C 、3A+B=2C D 、A+B=C 4、下列说法正确的是 ( ) A 、可逆反应的特征是正反应速率和逆反应速率相等 B 、在其他条件不变时，使用催化剂只能改变反应速率，而不能改变化学平衡状态 C 、在其他条件不变时，升高温度可以使平衡向放热反应方向移动 D 、在其他条件不变时，增大压强一定会破坏气体反应的平衡状态 5、相同温度下等物质的量浓度的下列溶液中，pH 值最小的是 （ ） A ．Cl NH 4 B ．34HCO NH C ．44HSO NH D ．424SO )(NH 6、下列说法正确的是 （ ） A 、物质的溶解性为难溶，则该物质不溶于水 B 、不溶于水的物质溶解度为0 C 、绝对不溶解的物质是不存在的 D 、某离子被沉淀完全是指该离子在溶液中的浓度为0 7、化学电池可以直接将化学能转化为电能，化学电池的本质是 （ ） A ．化合价的升降 B ． 电子的转移 C ．氧化还原反应 D ．电能的储存 8、随着人们生活质量的不断提高，废电池必须集中处理的问题被提到议事日程，首要原因 是 （ ）

高中数学人教版必修4全套教案

第1，2课时1.1．1 任意角 教学目标 （一） 知识与技能目标 理解任意角的概念(包括正角、负角、零角) 与区间角的概念. （二） 过程与能力目标 会建立直角坐标系讨论任意角,能判断象限角,会书写终边相同角的集合；掌握区间角的集合的书写． （三） 情感与态度目标 1． 提高学生的推理能力； 2．培养学生应用意识． 教学重点：任意角概念的理解；区间角的集合的书写． 教学难点：终边相同角的集合的表示；区间角的集合的书写． 教学过程 一、引入： 1．回顾角的定义 ①角的第一种定义是有公共端点的两条射线组成的图形叫做角. ②角的第二种定义是角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． 二、新课： 1．角的有关概念： ①角的定义： 角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． ②角的名称： ③角的分类： ④注意： ⑴在不引起混淆的情况下，“角α ”或“∠α ”可以简化成“α ”； ⑵零角的终边与始边重合，如果α是零角α =0°； ⑶角的概念经过推广后，已包括正角、负角和零角． ⑤练习：请说出角α、β、γ各是多少度? 2．象限角的概念： ①定义：若将角顶点与原点重合，角的始边与x 轴的非负半轴重合，那么 正角：按逆时针方向旋转形成的角 零角：射线没有任何旋转形成的角 始 边 终 边 顶 点 A O B 负角：按顺时针方向旋转形成的角

角的终边(端点除外)在第几象限，我们就说这个角是第几象限角． 例1．如图⑴⑵中的角分别属于第几象限角？ 例2．在直角坐标系中，作出下列各角，并指出它们是第几象限的角． ⑴ 60°； ⑵ 120°； ⑶ 240°； ⑷ 300°； ⑸ 420°； ⑹ 480°； 答：分别为1、2、3、4、1、2象限角． 3．探究： 终边相同的角的表示： 所有与角α终边相同的角，连同α在内，可构成一个集合S ＝{β|β=α+k ·360°，k ∈Z}，即任一与角α终边相同的角，都可以表示成角α与整个周角的和． 注意： ⑴ k ∈Z ⑵ α是任一角； ⑶ 终边相同的角不一定相等，但相等的角终边一定相同．终边相同的角有无限个，它们相差 360°的整数倍； ⑷ 角α + k ·720 °与角α终边相同，但不能表示与角α终边相同的所有角． 例3．在0°到360°范围内，找出与下列各角终边相等的角，并判断它们是第几象限角． ⑴－120°；⑵640 °；⑶－950°12＇． 答：⑴240°,第三象限角；⑵280°,第四象限角；⑶129°48＇,第二象限角； 例4．写出终边在y 轴上的角的集合(用0°到360°的角表示) ． 解:{α | α = 90°+ n ·180°,n ∈Z}． 例5．写出终边在x y 上的角的集合S,并把S 中适合不等式－360°≤β＜720°的元素β写出来． 4．课堂小结 ①角的定义； ②角的分类： ⑵ B 1 y ⑴ O x 45° B 2 O x B 3 y 30° 60o

人教版高中英语必修五电子课本

按住Ctrl键单击鼠标打开配套教学视频名师讲课播放必修5 Unit 1 JOHH SHOW DEFEATS “KING CHOLERA” John Snow was a famous doctor in London - so expert, indeed, that he attend ed Queen Victoria as her personal physician. But he became inspired when he tho ught about helping ordinary people exposed to cholera. This was the deadly diseas e of its day. Neither its cause nor its cure was understood. So many thousands of terrified people died every time there was an outbreak. John Snow wanted to face the challenge and solve this problem. He knew that cholera would never be contr olled until its cause was found. He became interested in two theories that possibly explained how cholera kille d people. The first suggested that cholera multiplied in the air. A cloud of dangero us gas floated around until it found its victims. The second suggested that people absorbed this disease into their bodies with their meals. From the stomach the dis ease quickly attacked the body and soon the affected person died. John Snow suspected that the second theory was correct but he needed evide nce. So when another outbreak hit London in 1854, he was ready to begin his en quiry. As the disease spread quickly through poor neighbourhoods, he began to gat her information. In two particular streets, the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. First he marked on a map the exact places where all the dead people had liv ed. This gave him a valuable clue about the cause of the disease. Many of the de aths were near the water pump in Broad Street (especially numbers 16, 37, 38 an d 40). He also noticed that some houses (such as 20 and 21 Broad Street and 8 and 9 Cambridge Street) had had no deaths. He had not foreseen this, so he mad e further investigations. He discovered that these people worked in the pub at 7 C ambridge Street. They had been given free beer and so had not drunk the water f rom the pump. It seemed that the water was to blame. Next, John Snow looked into the source of the water for these two streets. He found that it came from the river polluted by the dirty water from London. He imm ediately told the astonished people in Broad Street to remove the handle from the pump so that it could not be used. Soon afterwards the disease slowed down. He had shown that cholera was spread by germs and not in a cloud of gas. In another part of London, he found supporting evidence from two other deaths that were linked to the Broad Street outbreak. A woman, who had moved away fr om Broad Street, liked the water from the pump so much that she had it delivered to her house every day. Both she and her daughter died of cholera after drinking the water. With this extra evidence John Snow was able to announce with certaint y that polluted water carried the virus. To prevent this from happening again, John Snow suggested that the source o f all the water supplies be examined. The water companies were instructed not to expose people to polluted water any more. Finally "King Cholera" was defeated. COPERNICUS’ REVOLUTIONRRY THEORY

人教版高中化学选修四知识点总结

化学选修4化学反应与原理 第一章化学反应与能量 一、焓变反应热 1．反应热：一定条件下，一定物质的量的反应物之间完全反应所放出或吸收的热量2．焓变(ΔH)的意义：在恒压条件下进行的化学反应的热效应 （1）.符号：△H（2）.单位：kJ/mol 3.产生原因：化学键断裂——吸热化学键形成——放热 放出热量的化学反应。(放热>吸热)△H为“-”或△H<0 吸收热量的化学反应。（吸热>放热）△H为“+”或△H>0 ☆常见的放热反应：①所有的燃烧反应②酸碱中和反应③大多数的化合反应④金属与酸的反应⑤生石灰和水反应⑥浓硫酸稀释、氢氧化钠固体溶解等 ☆常见的吸热反应：①晶体Ba(OH)2·8H2O与NH4Cl②大多数的分解反应 ③以H2、CO、C为还原剂的氧化还原反应④铵盐溶解等 二、热化学方程式 书写化学方程式注意要点: ①热化学方程式必须标出能量变化。 ②热化学方程式中必须标明反应物和生成物的聚集状态（g,l,s分别表示固态，液态，气态，水溶液中溶质用aq表示） ③热化学反应方程式要指明反应时的温度和压强。 ④热化学方程式中的化学计量数可以是整数，也可以是分数 ⑤各物质系数加倍，△H加倍；反应逆向进行，△H改变符号，数值不变 三、燃烧热

1．概念：25℃，101kPa时，1mol纯物质完全燃烧生成稳定的化合物时所放出的热量。燃烧热的单位用kJ/mol表示。 ※注意以下几点： ①研究条件：101kPa②反应程度：完全燃烧，产物是稳定的氧化物。 ③燃烧物的物质的量：1mol④研究内容：放出的热量。（ΔH<0，单位kJ/mol） 四、中和热 1．概念：在稀溶液中，酸跟碱发生中和反应而生成1molH2O，这时的反应热叫中和热。 2．强酸与强碱的中和反应其实质是H+和OH-反应，其热化学方程式为：H+(aq)+OH-(aq)=H2O(l)ΔH=－57.3kJ/mol 3．弱酸或弱碱电离要吸收热量，所以它们参加中和反应时的中和热小于57.3kJ/mol。4．中和热的测定实验 五、盖斯定律 1．内容：化学反应的反应热只与反应的始态（各反应物）和终态（各生成物）有关，而与具体反应进行的途径无关，如果一个反应可以分几步进行，则各分步反应的反应热之和与该反应一步完成的反应热是相同的。 第二章化学反应速率和化学平衡 一、化学反应速率 1.化学反应速率（v） ⑴定义：用来衡量化学反应的快慢，单位时间内反应物或生成物的物质的量的变化 ⑵表示方法：单位时间内反应浓度的减少或生成物浓度的增加来表示 ⑶计算公式：v=Δc/Δt（υ：平均速率，Δc：浓度变化，Δt：时间）单位：mol/（L·s）

2019届高三英语阅读训练

2019高三英语阅读训练（A—B ） P1 A【2018届广东省广州市高三12月调研测试英语试题】 The Metropolis Book Club Membership All you need to do is fill out the order form at the bottom of the page, select your first order from our book list and then post the completed form back to us. Special offers for new members As a special offer, you may choose any reduced-price books from our new members’ book list, to the value of 100 yuan in total. Tick the box on your form to order a free watch. Join before the end of this month and you receive another free book carefully chosen by our staff. Order an audio-book from the many on offer, at half the recommended retail price. When you’ve joined As a member you get around 50% off the publisher’s price of every book you buy, and what’s more, they come straight to your door. Your free club magazine arrives once a month to keep you up to date with the latest best-sellers we’ve added to our list. On the Internet, you can find all our titles for the year at our exclusive members’ website. Our website also has a book swap service where members can request or offer books for exchange. Being a member All you have to do is order four books during your first year. After that, you can decide on the number of books you wish to take. In each of your monthly club magazines, our experienced staff choose a “Book of the Month” for you, which is offered at an extra-special price. If you do not want this book, just say so in the space provided on the form and send it back to us. We always send the book if we do not receive this form. Once we receive your order, your books are delivered within one week. And remember, you have up to a fortnight to decide if you wish to keep the books you have ordered. If they aren’t what you expected just send them back! 1. How can you become a member of the Metropolis Book Club? A. By ordering a watch free of charge.

人教版高中英语必修五：Unit+5教案+

Unite 5 First Aid Teaching Goals: 1. Enable the Ss to get some first aid knowledge 2. Enable the Ss to learn how to use what they’ve learnt to do first aid treatment for burns correctly. 3. Let the Ss learn the reading skill of getting the main idea of each para./ part & each passage . Key Teaching Points How to improve the Ss’ reading ability. Difficult points 1. How to grasp the main idea of each paragraph / part & each passage. 2. How to help the Ss use what they’ve learnt to do first aid treatment for burns correctly. Teaching methods 1). Skimming & scanning methods to make the Ss get a good understanding of the text. 1.Discussion methods to make the Ss understand what they’ve learned in class. 2.Pair work of group to get every student to take part in the teaching-and-learning activities. https://www.wendangku.net/doc/b017777285.html,petition and role-play method to arouse the Ss’ interest Teaching procedures Step1. Lead-in Lead-in by telling the Ss a story, meanwhile, teach them some new words: bandage, first-aid-kit, ambulance and then ask them to think of words about accidents and first aid Step2. Pre-reading Show the Ss the picture of Pre-reading on P33 and ask them the following questions: What has happened? What sort of injuries the child will have? What kind of first aid would you perform? Step3. Fast reading Let the Ss read the passage fast and then find out the answers to the questions 1. What will the passage be about? 2. What do they tell you about the passage? 3. In which order are these topics covered in the text? Number them from 1 to 5. ____ the three types of burns ____ what to do if someone gets burned ____ the purpose of skin ____ the symptoms of burns ____ how we get burns Step4. Detailed reading 1). Tell if the following statements are true or false: 1.Our skin has three layers. 2.We will never get burned by the sun. 3.Burns are divided into three degrees according to the degree of pain. 4.Third degree burns are the most serious and painful. 5.Put cool water on any burns to cool them. 6.Don’t rub the burns 7.It’s better that you put so me butter or oil on burns. 2). Answer the questions 1.Why should you put cold water on a burn?

(人教版)高中化学选修四(全套)最全考点全集(打印版)

（人教版）高中化学选修四（全册）最全考点汇总（打印版） 考点1 用盖斯定律进行有关反应热的计算 【考点定位】本考点考查用盖斯定律进行有关反应热的计算, 巩固对盖斯定律的理解, 提升应用盖斯定律解决问题的能力, 重点是灵活应用盖斯定律. 【精确解读】 1．内容：化学反应不管是一步完成还是分几步完成, 其反应热是相同的；即化学反应热只与其反应的始态和终态有关, 而与具体反应进行的途径无关； 2．应用： a．利用总反应和一个反应确定另一个反应的热效应； b．热化学方程式之间可以进行代数变换等数学处理； 3．反应热与键能关系 ①键能：气态的基态原子形成1mol化学键释放的最低能量．键能既是形成1mol化学键所释 放的能量, 也是断裂1mol化学键所需要吸收的能量． ②由键能求反应热：反应热等于断裂反应物中的化学键所吸收的能量(为“+”)和形成生成 物中的化学键所放出的能量(为“-”)的代数和．即△H=反应物键能总和-生成物键能总和=∑E反-∑E生 ③常见物质结构中所含化学键类别和数目：1mol P4中含有6mol P-P键；1mol晶体硅中含 有2mol Si-Si键；1mol金刚石中含有2molC-C键；1mol二氧化硅晶体中含有4mol Si-O 键. 【精细剖析】 1．盖斯定律的使用方法：

①写出目标方程式； ②确定“过渡物质”(要消去的物质)； ③用消元法逐一消去“过渡物质”． 例如： ①Fe2O3(s)+3CO(g)=2Fe(s)+3CO2 △H1 ②3Fe2O3(s)+CO(g)=2Fe3O4(s)+CO2(g)△H2 ③Fe3O4(s)+CO(g)=3FeO(s)+CO2(g)△H3 求反应FeO(s)+CO(g)=Fe(s)+CO2(g)△H4的焓变 三个反应中, FeO、CO、Fe、CO2是要保留的, 而与这四种物质无关的Fe2O3、Fe3O4要通过方程式的叠加处理予以消去, 先②+③×2-①×3先消除Fe3O4, 再消除Fe2O3, 得到④6Fe(s)+6CO2(g)=6FeO(s)+6CO(g)△H5, ④逆过来得到 ⑤6FeO(s)+6CO(g)=6Fe(s)+6CO2(g)-△H5, 再进行⑤÷6, 得到△H4=-； 2．计算过程中的注意事项： ①热化学方程式可以进行方向改变, 方向改变时, 反应热数值不变, 符号相 反； ②热化学方程式中物质的化学计量数和反应热可以同时改变倍数； ③热化学方程式可以叠加, 叠加时, 物质和反应热同时叠加； ④当对反应进行逆向时, 反应热数值不变, 符号相反. 【典例剖析】己知：Mn(s)+O2(g)═MnO2(s)△H l S(s)+O2(g)═SO2(g)△H2 Mn(s)+S(s)+2O2(g)═MnSO4(s)△H3 则下列表述正确的是( ) A．△H2＞0 B．△H3＞△H1 C．Mn+SO2═MnO2+S△H=△H2-△H1 D．MnO2(s)+SO2(g)═MnSO4(s)△H═△H3-△H2-△H1 【答案】D